Hole processing auxiliary device for carbon fiber performance test sample

Abstract

The utility model discloses a hole processing auxiliary device for a carbon fiber performance test sample, which relates to the field of fiber reinforced composite material processing tools and comprises an upper positioning block and a lower positioning block which are connected through six groups of positioning fastening bolts. The bottom of the lower positioning block is connected with two T-shaped sliding blocks through two fixing bolts, the bottom face of the upper positioning block is an upper positioning face, six bolt positioning via holes are formed in the positions, close to the outer side, of the lower surface of the upper positioning block, and an upper supporting hole is formed in the center of the lower surface of the upper positioning block. And an upper positioning boss is arranged on one side of the upper positioning surface. According to the hole machining auxiliary device for the carbon fiber performance test sample, the conditions of edge breakage and stress layering in the drilling and milling machining process of a carbon fiber standard sample hole can be avoided, the good machining effect is guaranteed, and the accuracy and reliability of a detection result are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of processing tooling for fiber - reinforced composite materials, and particularly relates to an auxiliary device for hole processing of carbon fiber performance test samples. Background Technique

[0002] As a high - performance material, carbon fiber has high specific strength, high specific modulus, low weight, and excellent fatigue characteristics, and is widely used in many fields such as aerospace, automotive, and wind energy. With the increasing global demand for lightweight, energy conservation, and emission reduction, the demand for carbon fiber materials has also increased. To meet these demands, carbon fiber precision detection technology has become a key link guiding the development of the industry.

[0003] During the processing of carbon fiber materials, defects such as delamination, tearing, burrs, wire drawing, and chipping are likely to occur, and it is relatively difficult to control the processing quality. The generation of processing defects has a great impact on the uncertainty of performance testing. The key to ensuring the accuracy of test results is the processing of standard test samples. Only by ensuring the rationality of sample processing can the accuracy and effectiveness of test results be ensured.

[0004] Therefore, this case proposes an auxiliary device for hole processing of carbon fiber performance test samples to solve the above - mentioned technical problems. Content of the Utility Model

[0005] The main purpose of the utility model is to provide an auxiliary device for hole processing of carbon fiber performance test samples, which can effectively solve the technical problems that carbon fiber materials are prone to defects such as delamination, tearing, burrs, wire drawing, and chipping during the processing in the background technique.

[0006] To achieve the above - mentioned purpose, the technical solution adopted by the utility model is as follows:

[0007] An auxiliary device for hole processing of carbon fiber performance test samples includes an upper positioning block and a lower positioning block. The upper positioning block and the lower positioning block are connected by six groups of positioning and fastening bolts, and two T - shaped sliders are connected to the bottom of the lower positioning block through two fixing bolts.

[0008] As a further scheme of the utility model, the bottom surface of the upper positioning block is an upper positioning surface. Six bolt positioning through - holes are opened at the outer - side position of the lower surface of the upper positioning block, and an upper support hole is opened at the center position of the lower surface of the upper positioning block. An upper positioning boss is provided at one - side position of the upper positioning surface.

[0009] As a further solution of the present utility model, the top surface of the lower positioning block is a lower positioning surface, and two fixing counterbores are symmetrically arranged near both ends of the upper surface of the lower positioning block. Six positioning and fixing bolt holes are arranged at the outer side position of the upper surface of the lower positioning block. A lower positioning boss is arranged at one side position of the lower positioning surface, and a lower supporting hole is arranged at the center position of the upper surface of the lower positioning block.

[0010] As a further solution of the present utility model, the upper positioning boss and the lower positioning boss are arranged in a mirror image, and a carbon fiber sample is arranged between the upper positioning boss and the lower positioning boss.

[0011] As a further solution of the present utility model, a screw hole is arranged on the upper surface of the T-shaped slider, and the fixing bolt passes through the fixing counterbore and is connected to the screw hole of the T-shaped slider.

[0012] As a further solution of the present utility model, the upper supporting hole and the lower supporting hole are vertically aligned.

[0013] The beneficial effects of the present utility model are as follows:

[0014] The positioning surface and the positioning boss of the lower positioning block and the positioning surface, the positioning boss and the positioning and fixing bolts of the upper positioning block are used to position the standard sample at the center of the device. The disassembly is convenient and the assembly is easy. Both the upper and lower positioning blocks are provided with positioning bosses, and the sample is positioned at the center position of the processing coordinate system by applying forces towards each other on both sides of the sample. The positioning is accurate. The upper and lower positioning blocks are provided with supporting holes, and the hole diameters are 0.1 - 0.2 mm larger than the hole diameter to be processed of the sample. The upper and lower supporting holes bear and reinforce the force-bearing area of the material, ensuring that the holes of the carbon fiber standard sample do not have chipping and force-induced delamination during the drilling and milling processes, guaranteeing a good processing effect and ensuring the accuracy and reliability of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an auxiliary device for hole processing of a carbon fiber performance test sample of the present utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the upper positioning block of an auxiliary device for hole processing of a carbon fiber performance test sample of the present utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the lower positioning block of an auxiliary device for hole processing of a carbon fiber performance test sample of the present utility model;

[0018] Figure 4 It is a schematic diagram of the exploded structure of an auxiliary device for hole processing of a carbon fiber performance test sample of the present utility model.

[0019] In the figure: 1. Upper positioning block; 11. Upper positioning surface; 12. Bolt positioning through-hole; 13. Upper positioning boss; 14. Upper supporting hole; 2. Lower positioning block; 21. Lower positioning surface; 22. Fixed counterbore; 23. Positioning and fixing bolt hole; 24. Lower positioning boss; 25. Lower supporting hole; 3. Carbon fiber sample; 4. Positioning and fastening bolt; 5. T-shaped slider; 6. Fixed bolt. Detailed implementation mode

[0020] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation modes.

[0021] As Figures 1 - 4 shown, a hole processing auxiliary device for a carbon fiber performance test sample includes an upper positioning block 1 and a lower positioning block 2. The upper positioning block 1 and the lower positioning block 2 are connected by six groups of positioning and fastening bolts 4, and the bottom of the lower positioning block 2 is connected with two T-shaped sliders 5 by two fixed bolts 6;

[0022] The two T-shaped sliders 5 are horizontally aligned for connection with an external T-shaped groove workbench, improving the applicability of the entire hole processing auxiliary device for the carbon fiber performance test sample.

[0023] In this embodiment, the bottom surface of the upper positioning block 1 is the upper positioning surface 11, and six bolt positioning through-holes 12 are provided at the outer side position of the lower surface of the upper positioning block 1, and an upper supporting hole 14 is provided at the center position of the lower surface of the upper positioning block 1. An upper positioning boss 13 is provided at one side position of the upper positioning surface 11;

[0024] The upper supporting hole 14 is used to support the upper part of the carbon fiber sample 3.

[0025] In this embodiment, the top surface of the lower positioning block 2 is the lower positioning surface 21, and two fixed counterbores 22 are symmetrically provided at the positions near both ends of the upper surface of the lower positioning block 2. Six positioning and fixing bolt holes 23 are provided at the outer side position of the upper surface of the lower positioning block 2. A lower positioning boss 24 is provided at one side position of the lower positioning surface 21, and a lower supporting hole 25 is provided at the center position of the upper surface of the lower positioning block 2;

[0026] The diameters of the lower supporting hole 25 and the upper supporting hole 14 are 0.1 - 0.2 mm larger than the diameter of the hole to be processed of the carbon fiber sample 3. The upper supporting hole 14 and the lower supporting hole 25 carry and reinforce the material stress area, ensuring that no edge collapse and stress delamination occur during the drilling and milling processes of the carbon fiber standard sample hole, guaranteeing good processing effects and ensuring the accuracy and reliability of the detection results.

[0027] In this embodiment, the upper positioning boss 13 and the lower positioning boss 24 are mirror-image settings, and a carbon fiber sample 3 is arranged between the upper positioning boss 13 and the lower positioning boss 24;

[0028] The carbon fiber sample 3 is placed on the lower positioning surface 21, and the sample is positioned by the lower positioning boss 24. The upper positioning surface 11 is placed on the carbon fiber sample 3, and at the same time, the upper positioning boss 13 is attached to the other side surface of the carbon fiber sample 3. At the same time, the positioning fastening bolts 4 are respectively passed through the bolt positioning through holes 12 and fastened to the positioning fixing bolt holes 23, completing all the positioning and clamping operations, which are convenient and fast.

[0029] In this embodiment, a threaded hole is provided on the upper surface of the T-shaped slider 5, and the fixing bolt 6 passes through the fixing counterbore 22 and is connected to the threaded hole of the T-shaped slider 5;

[0030] The T-shaped slider 5 is detachably connected to the lower positioning block 2, which is convenient for replacing the T-shaped slider 5 with the same threaded hole size but different sizes and specifications in the later stage.

[0031] The upper support hole 14 is vertically aligned with the lower support hole 25.

[0032] It should be noted that the present utility model is an auxiliary device for hole processing of a carbon fiber performance test sample. When in use, the lower positioning block 2 is fixed to the equipment workbench surface through the fixing bolt 6 and the T-shaped slider 5. The carbon fiber sample 3 is placed on the lower positioning surface 21, and the sample is positioned by the lower positioning boss 24. The upper positioning surface 11 is placed on the carbon fiber sample 3, and at the same time, the upper positioning boss 13 is attached to the other side surface of the carbon fiber sample 3. At the same time, the positioning fastening bolts 4 are respectively passed through the bolt positioning through holes 12 and fastened to the positioning fixing bolt holes 23, completing all the positioning and clamping operations. The upper positioning block 1 and the lower positioning block 2 are respectively provided with support holes, the aperture of which is 0.1 - 0.2 mm larger than the aperture of the sample to be processed. The upper support hole 14 and the lower support hole 25 carry and reinforce the material stress area, ensuring that no edge collapse and stress delamination occur during the drilling and milling processes of the carbon fiber standard sample holes, ensuring good processing effects, and ensuring the accuracy and reliability of the detection results.

[0033] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A hole processing auxiliary device for carbon fiber performance test samples, characterized in that: The invention comprises an upper positioning block (1) and a lower positioning block (2), wherein the upper positioning block (1) and the lower positioning block (2) are connected via six sets of positioning fastening bolts (4), and the bottom of the lower positioning block (2) is connected to two T-shaped sliding blocks (5) via two fixing bolts (6).

2. The hole processing auxiliary device for carbon fiber performance test sample according to claim 1, characterized in that: The bottom surface of the upper positioning block (1) is an upper positioning surface (11), and six bolt positioning through holes (12) are provided on the outer side of the lower surface of the upper positioning block (1), and an upper supporting hole (14) is provided at the center of the lower surface of the upper positioning block (1), and an upper positioning boss (13) is provided on one side of the upper positioning surface (11).

3. The hole processing auxiliary device for carbon fiber performance test sample according to claim 2, characterized in that: The top surface of the lower positioning block (2) is a lower positioning surface (21), and two fixing countersunk holes (22) are symmetrically provided on the upper surface of the lower positioning block (2) near the two ends, six positioning fixing bolt holes (23) are provided on the outer side of the upper surface of the lower positioning block (2), a lower positioning boss (24) is provided on one side of the lower positioning surface (21), and a lower supporting hole (25) is provided at the center of the upper surface of the lower positioning block (2).

4. The hole processing auxiliary device for carbon fiber performance test sample according to claim 3, characterized in that: The upper positioning boss (13) and the lower positioning boss (24) are arranged in a mirror image, and a carbon fiber sample (3) is arranged between the upper positioning boss (13) and the lower positioning boss (24).

5. The hole processing auxiliary device for carbon fiber performance test sample according to claim 3, characterized in that: The upper surface of the T-shaped slide block (5) is provided with a screw hole, and a fixing bolt (6) passes through the fixing countersunk hole (22) and is connected to the screw hole of the T-shaped slide block (5).

6. The hole processing auxiliary device for carbon fiber performance test sample according to claim 3, characterized in that: The upper support hole (14) is vertically aligned with the lower support hole (25).

Images