Sample preparation tool for whole-plate compression test of carbon fiber pultrusion plate

Abstract

The utility model belongs to the technical field of composite material detection, and particularly discloses a carbon fiber pultrusion plate whole plate compression test sample preparation tool which comprises a bottom plate, an upper cover plate, a single-face bonding thickness control unit and a total thickness control unit. The total thickness control unit comprises four sets of total thickness control base plates, the four sets of total thickness control base plates are located on the four edges of the bottom plate respectively, the thickness of the total thickness control base plates is equal to that of the test piece, and the bottom of the upper cover plate can abut against the total thickness control base plates; the single-face bonding thickness control unit comprises an upper-layer bonding thickness control assembly and a lower-layer bonding thickness control assembly, the upper-layer bonding thickness control assembly is located between the upper-layer reinforcing piece and the carbon fiber pultrusion plate, and the lower-layer bonding thickness control assembly is located between the lower-layer reinforcing piece and the carbon fiber pultrusion plate. By arranging the single-side bonding thickness control unit and the total thickness control unit, the single-side bonding thickness and the total thickness of the test piece can be controlled, and the accuracy of test piece manufacturing is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the composite material detection technical field especially relates to a kind of carbon fiber pultrusion plate whole board compression test sample preparation tool. BACKGROUND

[0002] In carbon fiber composite material detection, in order to not make composite material be destroyed in clamping process, lead to test sample failure, usually need to paste reinforcing sheet on carbon fiber pultrusion plate, for protecting composite material test piece, so that composite material test sample is fully protected, to improve the stability and reliability of test data and result.Usually manually paste at present, the thickness of entire composite material test piece cannot be controlled, and the thickness of adhesive layer between reinforcing sheet and carbon fiber pultrusion plate cannot be controlled. SUMMARY

[0003] The utility model discloses a kind of carbon fiber pultrusion plate whole board compression test sample preparation tool, to solve the thickness of existing technology cannot control compliance material test piece, also cannot control the thickness of adhesive layer between reinforcing sheet and carbon fiber pultrusion plate Problem.

[0004] In order to achieve the above object, the technical scheme of the utility model is as follows: carbon fiber pultrusion plate whole board compression test sample preparation tool, including bottom plate, upper cover plate, single-face adhesive thickness control unit and total thickness control unit;The total thickness control unit includes four groups of total thickness control pads, four groups The total thickness control pad is located on the four edges of bottom plate respectively, the thickness of total thickness control pad is equal to the thickness of test piece, the bottom of upper cover plate can be in contact with total thickness control pad;The distance between two groups of total thickness control pads in the length direction of bottom plate is not less than the length of carbon fiber pultrusion plate, the distance between two groups of total thickness control pads in the width direction of bottom plate is not less than the width of reinforcing sheet;Single-face adhesive thickness control unit includes upper adhesive thickness control assembly and lower adhesive thickness control assembly, upper adhesive thickness control assembly is located between upper reinforcing sheet and carbon fiber pultrusion plate, lower adhesive thickness control assembly is located between lower reinforcing sheet and carbon fiber pultrusion plate;The thickness of upper adhesive thickness control assembly and lower adhesive thickness control assembly is equal to the thickness of adhesive layer;Upper adhesive thickness control assembly and lower adhesive thickness control assembly are located on both sides of reinforcing sheet.

[0005] Further, the upper adhesive thickness control assembly and the lower adhesive thickness control assembly each include four groups of single-face thickness control pads, and the four groups of single-face thickness control pads are respectively located on both sides of the two groups of carbon fiber pultrusion plates.

[0006] Further, the bottom plate is further provided with a carbon fiber pultrusion plate positioning unit; the carbon fiber pultrusion plate positioning unit comprises two groups of positioning seats and two groups of pultrusion plate pushing assemblies; the two groups of positioning seats are fixed on the opposite two sides of the bottom plate respectively, and the two groups of pultrusion plate pushing assemblies are fixed on the other two sides of the bottom plate respectively; the connecting line direction of the two groups of positioning seats is the same as the length direction of the carbon fiber pultrusion plate; the two groups of carbon fiber pultrusion plates are located on the two sides of the positioning seats, and the side of the two groups of carbon fiber pultrusion plates close to each other can abut against the two sides of the positioning seats; each group of pultrusion plate pushing assemblies comprises two groups of pultrusion plate pushing seats, and the two groups of pultrusion plate pushing seats are located on the two sides of the bottom plate respectively; the connecting line direction of the two groups of pultrusion plate pushing seats is the same as the length direction of the carbon fiber pultrusion plate; a pultrusion plate pushing plate is slidably connected to each group of pultrusion plate pushing seats, and the pultrusion plate pushing plate is used to push the carbon fiber pultrusion plate towards the positioning seat.

[0007] Further, the bottom plate is further provided with a carbon fiber pultrusion plate positioning unit; the carbon fiber pultrusion plate positioning unit comprises two groups of positioning seats and two groups of pultrusion plate pushing assemblies; the two groups of positioning seats are fixed on the opposite two sides of the bottom plate respectively, and the two groups of pultrusion plate pushing assemblies are fixed on the other two sides of the bottom plate respectively; the connecting line direction of the two groups of positioning seats is the same as the length direction of the carbon fiber pultrusion plate; the two groups of carbon fiber pultrusion plates are located on the two sides of the positioning seats, and the side of the two groups of carbon fiber pultrusion plates close to each other can abut against the two sides of the positioning seats; each group of pultrusion plate pushing assemblies comprises two groups of pultrusion plate pushing seats, and the two groups of pultrusion plate pushing seats are located on the two sides of the bottom plate respectively; the connecting line direction of the two groups of pultrusion plate pushing seats is the same as the length direction of the carbon fiber pultrusion plate; a pultrusion plate pushing plate is slidably connected to each group of pultrusion plate pushing seats, and the pultrusion plate pushing plate is used to push the carbon fiber pultrusion plate towards the positioning seat.

[0008] Further, the upper cover plate is provided with a positioning hole matched with the center positioning column, and the center positioning column can be inserted into the positioning hole.

[0009] Further, the upper cover plate and the bottom plate are respectively provided with first glue cleaning grooves, and the first glue cleaning grooves are located between the two sides of the reinforcing sheets.

[0010] Further, the upper cover plate and the bottom plate are respectively provided with four groups of second glue cleaning grooves, and the second glue cleaning grooves correspond to the single-sided thickness control gaskets.

[0011] The working principle of the technical solution is that:

[0012] Positioning of the lower layer of reinforcing sheets: Place the two groups of lower layer of reinforcing sheets coated with adhesive on the base plate and on both sides of the center positioning column, with the adhesive side facing up. Push the lower layer of reinforcing sheet pusher, which pushes the lower layer of reinforcing sheets towards the center positioning column until both groups of lower layer of reinforcing sheets are in contact with the center positioning column, thereby achieving the positioning of the lower layer of reinforcing sheets.

[0013] Control of the thickness of the lower layer of adhesive: Place the four groups of single-sided thickness control washers of the lower layer of adhesive thickness control assembly on the side of the two groups of lower layer of reinforcing sheets away from each other, and the two groups of single-sided thickness control washers on the same side are respectively located on both sides of the positioning seat.

[0014] Positioning of the carbon fiber pultruded plate: Place the two groups of carbon fiber pultruded plates on both sides of the positioning seat and above the single-sided thickness control washer. Then push the pultruded plate pusher, which pushes the carbon fiber pultruded plate towards the positioning seat until the carbon fiber pultruded plate is in contact with one side of the two positioning seats, thereby achieving the positioning of the carbon fiber pultruded plate.

[0015] Control of the thickness of the upper layer of adhesive: Place the four groups of single-sided thickness control washers of the upper layer of adhesive thickness control assembly on both sides of the two groups of carbon fiber pultruded plates.

[0016] Positioning of the upper layer of reinforcing sheets: Place the two groups of upper layer of reinforcing sheets coated with adhesive on the four groups of single-sided thickness control washers of the upper layer of adhesive thickness control assembly and on both sides of the center positioning column, with the adhesive side facing down. Push the upper layer of reinforcing sheet pusher, which pushes the upper layer of reinforcing sheets towards the center positioning column until both groups of upper layer of reinforcing sheets are in contact with the center positioning column, thereby achieving the positioning of the upper layer of reinforcing sheets.

[0017] Compression of the test specimen: Press the upper cover plate down along the center positioning column until the lower side of the upper cover plate is in contact with the upper side of the total thickness control pad. During the pressing process, excess adhesive will be squeezed out, and the remaining adhesive can be cleaned through the first and second adhesive cleaning grooves.

[0018] The beneficial effects of the technical solution are:

[0019] ①In the technical solution, the single-sided adhesive thickness control unit and the total thickness control unit are set up, which can control the single-sided adhesive thickness and the total thickness of the test specimen, ensuring the accuracy of the test specimen production. By controlling the single-sided adhesive thickness, the stability of the test data can be ensured.

[0020] ②In the technical solution, the sliding connection between the pultruded plate pusher and the pultruded plate pusher seat can adapt to the positioning of carbon fiber pultruded plates of different widths, and the sliding connection between the reinforcing sheet pusher and the reinforcing sheet pusher seat can adapt to the positioning of reinforcing sheets of different lengths.

[0021] ③ In this technical solution, by setting the first glue cleaning tank and the second glue cleaning tank, the residual glue can be cleaned.

[0022] ④ This technical solution not only realizes the positioning of the reinforcement sheet but also ensures the accuracy of the downward pressing direction of the upper cover plate by setting a central positioning column. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of the sample preparation tooling for the whole plate compression test of carbon fiber pultruded plate of the utility model. DETAILED DESCRIPTION

[0024] The following is further described in detail through specific implementation methods:

[0025] The figure marks in the drawings of the specification include: base plate 1, upper cover plate 2, lower reinforcing plate 3, upper reinforcing plate 4, carbon fiber pultruded plate 5, center positioning column 6, positioning seat 7, total thickness control pad 8, lower layer bonding thickness control component 9, upper layer bonding thickness control component 10, pultruded plate pushing seat 11, pultruded plate pushing plate 12, reinforcing plate pushing seat 13, lower layer reinforcing plate pushing plate 14, upper layer reinforcing plate pushing plate 15, positioning hole 16, first glue clearing groove 17, second glue clearing groove 18, notch 19, reinforcing plate pushing assembly 20, pultruded plate pushing assembly 21.

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The embodiment is basically as shown in the attached Figure 1 As shown: a carbon fiber pultruded plate whole plate compression test sample preparation tooling, including a base plate 1, an upper cover plate 2, and a single-sided bonding thickness control unit, a total thickness control unit, a carbon fiber pultruded plate positioning unit and a reinforcement sheet positioning unit arranged on the base plate 1.

[0028] The total thickness control unit includes four sets of total thickness control pads 8, located on each of the four sides of the base plate 1. The thickness of the total thickness control pads 8 is equal to the thickness of the specimen, and the bottom of the upper cover plate 2 can be aligned with the total thickness control pads 8. The distance between the two sets of total thickness control pads 8 along the length of the base plate 1 is no less than the length of the carbon fiber pultruded sheet 5, and the two sets of total thickness control pads 8 are divided into two, one on each side of the positioning seat 7. The distance between the two sets of total thickness control pads 8 along the width of the base plate 1 is no less than the width of the reinforcement sheet.

[0029] The single-sided bonding thickness control unit includes an upper bonding thickness control assembly 10 and a lower bonding thickness control assembly 9. The upper bonding thickness control assembly 10 is located between the upper reinforcing sheet 4 and the carbon fiber pultrusion plate 5, and the lower bonding thickness control assembly 9 is located between the lower reinforcing sheet 3 and the carbon fiber pultrusion plate 5. The thicknesses of the upper bonding thickness control assembly 10 and the lower bonding thickness control assembly 9 are equal to the bonding layer thickness. The upper bonding thickness control assembly 10 and the lower bonding thickness control assembly 9 are located on both sides of the reinforcing sheet. The upper bonding thickness control assembly 10 and the lower bonding thickness control assembly 9 each include four sets of single-sided thickness control gaskets, which are located on both sides of the two sets of carbon fiber pultrusion plates 5.

[0030] The carbon fiber pultrusion plate positioning unit includes two sets of positioning seats 7 and two sets of pultrusion plate pushing assemblies 21. The two sets of positioning seats 7 are fixed on the two sides of the length direction of the base plate 1, and the two sets of pultrusion plate pushing assemblies 21 are fixed on the other two sides of the base plate 1. The connecting line direction of the two sets of positioning seats 7 is the same as the length direction of the carbon fiber pultrusion plate 5. The two sets of carbon fiber pultrusion plates 5 are located on both sides of the positioning seats 7, and the side of the two sets of carbon fiber pultrusion plates 5 close to each other can abut against both sides of the positioning seats 7. Each set of pultrusion plate pushing assembly 21 includes two sets of pultrusion plate pushing seats 11, which are located on both sides of the base plate 1. The connecting line direction of the two sets of pultrusion plate pushing seats 11 is the same as the length direction of the carbon fiber pultrusion plate 5. Each set of pultrusion plate pushing seat 11 is slidably connected with a pultrusion plate pushing plate 12, which is used to push the carbon fiber pultrusion plate 5 towards the positioning seat 7.

[0031] The reinforcing sheet positioning unit includes two sets of center positioning columns 6 and two sets of reinforcing sheet pushing assemblies 20. The two sets of center positioning columns 6 are fixed on both sides of the middle position of the base plate 1, and the two sets of carbon fiber pultrusion plates 5 are located between the two sets of center positioning columns 6. The two sets of reinforcing sheet pushing assemblies 20 are located on the other two sides of the base plate 1. Each set of reinforcing sheet pushing assembly 20 includes two sets of reinforcing sheet pushing seats 13, which are located on both sides of the base plate 1. The connecting line direction of the two sets of reinforcing sheet pushing seats 13 is the same as the width direction of the carbon fiber pultrusion plate 5. Each set of reinforcing sheet pushing seat 13 is slidably connected with an upper reinforcing sheet pushing plate 15 and a lower reinforcing sheet pushing plate 14, which correspond to the upper reinforcing sheet 4 and the lower reinforcing sheet 3, respectively. The upper reinforcing sheet pushing plate 15 and the lower reinforcing sheet pushing plate 14 are used to push the upper reinforcing sheet 4 and the lower reinforcing sheet 3 towards the center positioning column 6. The distance between the two sets of center positioning columns 6 is less than the width of the reinforcing sheet.

[0032] The upper cover plate 2 is provided with a positioning hole 16 matched with the center positioning column 6, and the center positioning column 6 can be inserted into the positioning hole 16. The upper cover plate 2 and the bottom plate 1 are respectively provided with a first glue cleaning groove 17, and the first glue cleaning groove 17 is located between the two side reinforcing sheets and is specifically arranged between the two groups of positioning holes 16. The upper cover plate 2 and the bottom plate 1 are respectively provided with four groups of second glue cleaning grooves 18, and the second glue cleaning grooves 18 correspond to the single-sided thickness control gaskets.

[0033] The upper cover plate 2 is provided with a notch 19 for avoiding the positioning seat 7, the reinforcing sheet top pushing seat 13 and the pultruded plate top pushing seat 11.

[0034] The specific implementation process is as follows:

[0035] Positioning of the lower reinforcing sheet 3: Place the two groups of lower reinforcing sheets 3 coated with adhesive on the bottom plate 1 and on the two sides of the center positioning column 6, and the adhesive surface of the lower reinforcing sheet 3 faces upward. Push the lower reinforcing sheet top pushing plate 14, and the lower reinforcing sheet top pushing plate 14 pushes the lower reinforcing sheet 3 toward the direction of the center positioning column 6 until the two groups of lower reinforcing sheets 3 abut against the center positioning column 6, thereby realizing the positioning of the lower reinforcing sheet 3.

[0036] Control of the lower adhesive thickness: Place the four groups of single-sided thickness control gaskets of the lower adhesive thickness control assembly 9 on the side of the two groups of lower reinforcing sheets 3 away from each other, and the two groups of single-sided thickness control gaskets on the same side are respectively located on the two sides of the positioning seat 7.

[0037] Positioning of the carbon fiber pultruded plate 5: Place the two groups of carbon fiber pultruded plates 5 on the two sides of the positioning seat 7 and above the single-sided thickness control gasket. Then push the pultruded plate top pushing plate 12, and the pultruded plate top pushing plate 12 pushes the carbon fiber pultruded plate 5 toward the direction of the positioning seat 7 until the carbon fiber pultruded plate 5 abuts against one side of the two groups of positioning seats 7, thereby realizing the positioning of the carbon fiber pultruded plate 5.

[0038] Control of the upper adhesive thickness: Place the four groups of single-sided thickness control gaskets of the upper adhesive thickness control assembly 10 on the two sides of the two groups of carbon fiber pultruded plates 5.

[0039] Positioning of the upper reinforcing sheet 4: Place the two groups of upper reinforcing sheets 4 coated with adhesive on the four groups of single-sided thickness control gaskets of the upper adhesive thickness control assembly 10, and on the two sides of the center positioning column 6, and the adhesive surface of the upper reinforcing sheet 4 faces downward. Push the upper reinforcing sheet top pushing plate 15, and the upper reinforcing sheet top pushing plate 15 pushes the upper reinforcing sheet 4 toward the direction of the center positioning column 6 until the two groups of upper reinforcing sheets 4 abut against the center positioning column 6, thereby realizing the positioning of the upper reinforcing sheet 4.

[0040] The test piece is compressed: the upper cover plate 2 is pressed downward along the center positioning column 6 until the lower side of the upper cover plate 2 abuts against the upper side of the total thickness control pad 8, and the excess adhesive is squeezed out during the pressing process, and the residual adhesive can be cleaned through the first adhesive cleaning groove 17 and the second adhesive cleaning groove 18.

[0041] It should be noted that the relational terms herein such as first and second are used only to differentiate one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device.

[0042] The above is only the embodiment of the present application, and the common knowledge of specific structures and properties in the scheme is not described in detail, the ordinary skilled in the art knows all the ordinary technical knowledge in the technical field of the present application before the filing date or the priority date, can know all the prior art in the field and has the ability to apply the conventional experimental means before the date, the ordinary skilled in the art can improve and implement the present scheme under the inspiration of the present application combined with their own ability, some typical known structures or known methods should not be an obstacle for the ordinary skilled in the art to implement the present application. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode in the specification can be used to explain the content of the claims.

Claims

1. Carbon fiber pultruded sheet compression test sample preparation tool, characterized by: The device comprises a bottom plate (1), an upper cover plate (2), a single-sided bonding thickness control unit and a total thickness control unit; the total thickness control unit comprises four sets of total thickness control pads (8), which are respectively arranged on the four edges of the bottom plate (1), the thickness of the total thickness control pads (8) is equal to the thickness of the test piece, and the bottom of the upper cover plate (2) can abut against the total thickness control pads (8); the distance between the two sets of total thickness control pads (8) in the length direction of the bottom plate (1) is not less than the length of the carbon fiber pultrusion plate (5), and the distance between the two sets of total thickness control pads (8) in the width direction of the bottom plate (1) is not less than the width of the reinforcing sheet; the single-sided bonding thickness control unit comprises an upper bonding thickness control assembly (10) and a lower bonding thickness control assembly (9), the upper bonding thickness control assembly (10) is arranged between the upper reinforcing sheet (4) and the carbon fiber pultrusion plate (5), and the lower bonding thickness control assembly (9) is arranged between the lower reinforcing sheet (3) and the carbon fiber pultrusion plate (5); the thickness of the upper bonding thickness control assembly (10) and the lower bonding thickness control assembly (9) is equal to the thickness of the bonding adhesive layer; the upper bonding thickness control assembly (10) and the lower bonding thickness control assembly (9) are arranged on both sides of the reinforcing sheet.

2. The carbon fiber pultruded panel bulk compression test sample preparation fixture of claim 1, wherein: The upper bonding thickness control assembly (10) and the lower bonding thickness control assembly (9) each comprise four sets of single-sided thickness control pads, which are respectively arranged on both sides of the two sets of carbon fiber pultrusion plates (5).

3. The carbon fiber pultruded panel bulk compression test sample preparation fixture of claim 1, wherein: The bottom plate (1) is further provided with a carbon fiber pultrusion plate (5) positioning unit; the carbon fiber pultrusion plate (5) positioning unit comprises two sets of positioning seats (7) and two sets of pultrusion plate pushing assemblies (21); the two sets of positioning seats (7) are respectively fixed on the opposite sides of the bottom plate (1), and the two sets of pultrusion plate pushing assemblies (21) are respectively fixed on the other two sides of the bottom plate (1); the connecting line direction of the two sets of positioning seats (7) is the same as the length direction of the carbon fiber pultrusion plate (5); the two sets of carbon fiber pultrusion plates (5) are arranged on both sides of the positioning seat (7), and the side of the two sets of carbon fiber pultrusion plates (5) close to each other can abut against both sides of the positioning seat (7); each set of pultrusion plate pushing assembly (21) comprises two sets of pultrusion plate pushing seats (11), which are respectively arranged on both sides of the bottom plate (1), and the connecting line direction of the two sets of pultrusion plate pushing seats (11) is the same as the length direction of the carbon fiber pultrusion plate (5); each set of pultrusion plate pushing seat (11) is slidably connected with a pultrusion plate pushing plate (12), and the pultrusion plate pushing plate (12) is used for pushing the carbon fiber pultrusion plate (5) towards the positioning seat (7).

4. The carbon fiber pultruded panel bulk compression test sample preparation fixture of claim 1, wherein: The bottom plate (1) is further provided with a reinforcing sheet positioning unit, the reinforcing sheet positioning unit comprises two groups of center positioning columns (6) and two groups of reinforcing sheet pushing assemblies (20), the two groups of center positioning columns (6) are fixed on both sides of the middle position of the bottom plate (1), and the two groups of carbon fiber pultrusion plates (5) are located between the two groups of center positioning columns (6); the two groups of reinforcing sheet pushing assemblies (20) are located on the other two sides of the bottom plate (1), each group of the reinforcing sheet pushing assemblies (20) comprises two groups of reinforcing sheet pushing seats (13), the two groups of reinforcing sheet pushing seats (13) are located on the two sides of the bottom plate (1) respectively, and the connecting line direction of the two groups of reinforcing sheet pushing seats (13) is the same as the width direction of the carbon fiber pultrusion plate (5); the upper reinforcing sheet pushing plate (15) and the lower reinforcing sheet pushing plate (14) are slidably connected on each group of the reinforcing sheet pushing seats (13), the upper reinforcing sheet pushing plate (15) and the lower reinforcing sheet pushing plate (14) correspond to the upper reinforcing sheet (4) and the lower reinforcing sheet (3) respectively; the upper reinforcing sheet pushing plate (15) and the lower reinforcing sheet pushing plate (14) are used for pushing the upper reinforcing sheet (4) and the lower reinforcing sheet (3) towards the direction of the center positioning column (6), and the distance between the two groups of center positioning columns (6) is less than the width of the reinforcing sheet.

5. The carbon fiber pultruded panel bulk compression test sample preparation fixture of claim 4, wherein: The upper cover plate (2) is provided with a positioning hole (16) matched with the center positioning column (6), and the center positioning column (6) can be inserted into the positioning hole (16).

6. The carbon fiber pultruded panel bulk compression test sample preparation fixture of claim 1, wherein: The upper cover plate (2) and the bottom plate (1) are respectively provided with a first glue cleaning groove (17), and the first glue cleaning groove (17) is located between the reinforcing sheets on both sides.

7. The carbon fiber pultruded panel bulk compression test sample preparation fixture of claim 2, wherein: The upper cover plate (2) and the bottom plate (1) are respectively provided with four groups of second glue cleaning grooves (18), and the second glue cleaning grooves (18) correspond to the single-sided thickness control gaskets.

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