Novel drilling and tapping tool for carbon fiber composite material

Abstract

The utility model provides a novel drilling and tapping tool for a carbon fiber composite material. The novel drilling and tapping tool comprises a drill plate, a replaceable drill sleeve used for being inserted into an electric hand drill for tapping is installed on the drill plate in an inserted mode, and a replaceable tapping sleeve in the drill plate is in butt joint with the replaceable drill sleeve. The drill plate is installed on the base, an arc-shaped gap is formed between the drill plate and the base and used for containing the carbon fiber composite cylinder to be machined, and the replaceable tapping sleeve right faces the arc-shaped gap. According to the composite material drilling and tapping device, drilling can be conducted through a component pressing reinforcing method, the cutting machining condition of threads during composite material drilling and tapping machining is improved, the defects of layering, splitting and the like are reduced, and the machining quality of the composite material is guaranteed.

Description

Technical Field

[0001] The utility model relates to a novel carbon fiber composite material drilling and tapping tool, belonging to the technical field of carbon fiber composite material processing. Background Art

[0002] Carbon fiber composite materials have the advantages of high tensile strength, large modulus, high strength, light weight, corrosion resistance, high temperature resistance, good dimensional stability, and good fatigue resistance. They are increasingly used in various fields such as aerospace, national defense and military industry. However, this new material also has many disadvantages, such as poor mechanical processing performance, especially the quality of drilling and tapping is difficult to guarantee. Carbon fiber composite materials are brittle materials, mostly made of multiple layers of materials. In the process of drilling and tapping by conventional means, defects such as splitting and delamination, shrinkage, and slag are prone to occur. The thread processing accuracy is difficult to guarantee, and even the screw assembly is difficult. After installation, the screw force is not up to standard. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a new carbon fiber composite material drilling and tapping tool, which can improve the cutting processing conditions of the thread when drilling and tapping the composite material, reduce defects such as delamination and splitting, and ensure the processing quality of the composite material.

[0004] The utility model is realized through the following technical solutions.

[0005] The utility model provides a novel carbon fiber composite material drilling and tapping tool, comprising a drilling template; a replaceable drill sleeve for inserting a hand drill for tapping is inserted and installed on the drilling template, and a replaceable tapping sleeve is arranged in the drilling template to connect with the replaceable drill sleeve; the drilling template is installed on a base, and an arc-shaped gap is provided between the drilling template and the base for placing a carbon fiber composite tube to be processed, and the replaceable tapping sleeve is aligned with the arc-shaped gap.

[0006] The replaceable drill sleeve is provided with an adjustable depth positioning sleeve for adjusting the depth of the hand drill.

[0007] The adjustable depth positioning sleeve is locked by a locking ring.

[0008] The locking ring is fixed to the replaceable drill sleeve through a nut.

[0009] The position on the replaceable tapping sleeve that butts against the replaceable drill sleeve has an indented inner hexagonal structure.

[0010] The beneficial effect of the utility model is that it can drill holes through the component compression reinforcement method (using two tooling plates to sandwich the composite material in the middle), improve the cutting processing conditions of the thread when drilling and tapping the composite material, reduce defects such as delamination and splitting, and ensure the processing quality of the composite material. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of at least one implementation mode of the utility model.

[0012] In the figure: 1- hand drill, 2- adjustable depth positioning sleeve, 3- locking ring, 4- nut, 5- replaceable drill sleeve, 6- replaceable tapping sleeve, 7- drill template, 8- base. DETAILED DESCRIPTION

[0013] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0014] Example 1

[0015] like Figure 1 A novel carbon fiber composite material drilling and tapping tool is shown, comprising a drilling template 7; a replaceable drill sleeve 5 for inserting a hand drill 1 for tapping is inserted and installed on the drilling template 7, and a replaceable tapping sleeve 6 is arranged in the drilling template 7 to dock with the replaceable drill sleeve 5; the drilling template 7 is installed on a base 8, and there is an arc-shaped gap between the drilling template 7 and the base 8 for placing the carbon fiber composite tube to be processed, and the replaceable tapping sleeve 6 is located at the position of the arc-shaped gap.

[0016] Generally, replaceable drill sleeves and replaceable tapping sleeves (with concave hexagonal holes on the upper surface) need to be tightened when used to press the processing parts to prevent delamination. The thread tapping guide tooling can play a positioning and guiding role to prevent the tap from slipping at the hole mouth and causing tooth decay, and can also ensure the verticality requirements of the thread. The adjustable depth positioning sleeve can ensure the drilling depth requirements and prevent the hole from being drilled too deep and drilled through. After the drill bit is worn and reground, it can be readjusted.

[0017] Example 2

[0018] Based on Example 1, an adjustable depth positioning sleeve 2 is installed on the replaceable drill sleeve 5 for adjusting the depth of the hand drill 1.

[0019] Furthermore, the adjustable depth positioning sleeve 2 is locked by a locking ring 3 .

[0020] Furthermore, the locking ring 3 is fixed to the replaceable drill sleeve 5 through a nut 4 .

[0021] Furthermore, the position of the replaceable tapping sleeve 6 that butts against the replaceable drilling sleeve 5 has a concave inner hexagonal structure.

[0022] Example 3

[0023] Using Example 1 and / or Example 2, the method of using the same comprises the following steps:

[0024] S1, pre-assembly: tighten the replaceable drill sleeve 5 onto the replaceable tapping sleeve 6, and tighten it to prevent delamination;

[0025] S2, installation: place the carbon fiber composite tube to be processed in the arc-shaped gap between the drilling template 7 and the base 8 and ensure that the processed surface fits;

[0026] S3, tapping: insert the hand drill 1 into the replaceable drill sleeve 5 to perform drilling and tapping.

[0027] Furthermore, in step S3, the drilling depth requirement is ensured by the adjustable depth positioning sleeve 2 to prevent the hole from being drilled too deep or through.

[0028] Furthermore, after step S3 is completed, it is determined whether there are other holes to be processed, and if so, the process returns to step S2.

[0029] Further, in step S3, the distance between the upper surface of the adjustable depth positioning sleeve 2 and the chuck of the hand drill 1 is measured with a caliper, and the distance is used as the depth of the hole. Thus, the holes are drilled in sequence with the hand drill, and then the replaceable drill sleeve is removed and replaced with the threaded tapping sleeve to tighten the tapping.

Claims

1. A novel carbon fiber composite material drilling and tapping tool, comprising a drilling template (7), characterized in that: A replaceable drill sleeve (5) for inserting a hand-held electric drill (1) for tapping is inserted and installed on the drilling template (7), and a replaceable tapping sleeve (6) is provided in the drilling template (7) to butt against the replaceable drill sleeve (5); the drilling template (7) is installed on a base (8), and an arc-shaped gap is provided between the drilling template (7) and the base (8) for placing a carbon brazing fiber composite tube to be processed, and the replaceable tapping sleeve (6) is located at the position of the arc-shaped gap.

2. The novel carbon fiber composite material drilling and tapping tool as claimed in claim 1, characterized in that: The replaceable drill sleeve (5) is provided with an adjustable depth positioning sleeve (2) for adjusting the depth of the hand drill (1).

3. The novel carbon fiber composite material drilling and tapping tool as claimed in claim 2, characterized in that: The adjustable depth positioning sleeve (2) is locked by a locking ring (3).

4. The novel carbon fiber composite material drilling and tapping tool as claimed in claim 3, characterized in that: The locking ring (3) is fixed to the replaceable drill sleeve (5) via a nut (4).

5. The novel carbon fiber composite material drilling and tapping tool as claimed in claim 1, characterized in that: The position on the replaceable tapping sleeve (6) that butts against the replaceable drilling sleeve (5) has a concave inner hexagonal structure.

Images