A tooling for assisting in bonding planar tensile specimens to test clamps.

Abstract

This utility model relates to a tooling for assisting in the bonding of a planar tensile specimen to a test clamp, comprising: a base; a fixed frame disposed at the upper end of the base; a sliding plate vertically disposed within the fixed frame; the test clamp and specimen to be bonded, placed within the fixed frame and located on one side of the sliding plate; a drive bolt threadedly connected to the fixed frame, with its threaded end abutting against the sliding plate to drive the sliding plate closer to the specimen; a sliding groove horizontally disposed on two opposite sides of the fixed frame; and two pins arranged horizontally and parallel to the sliding plate, one of which is inserted into the sliding groove and the test clamp, and the other into the sliding groove and the specimen. Through the bidirectional abutment constraint between the inner side of the fixed frame and the test clamp and specimen, combined with the guiding and limiting structure of the horizontal sliding groove and the pins, the specimen and clamp are ensured to maintain precise alignment during the bonding process, effectively solving the slippage problem caused by unstable pressure direction in traditional methods, and significantly improving the bonding position accuracy and test result reliability.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology, specifically a tooling for assisting in the bonding of a planar tensile specimen to a test clamp block. Background Technology

[0002] In the manufacturing process of composite materials, adhesives or films are widely used in sheet-to-sheet or sheet-to-core bonding, and their bonding reliability directly affects the mechanical properties and service life of the product. To evaluate the performance of adhesive films or adhesives, a planar tensile strength test (such as ASTM C297 or GB / T 1452 standards) is usually required. This test requires the specimen to be bonded to a test fixture with adhesive, and then a tensile test is performed on a special fixture.

[0003] However, existing testing methods have the following technical problems:

[0004] 1. During the bonding and curing process, a certain pressure needs to be applied to the test clamp and the sample to ensure the bonding quality. However, when the pressure is applied, the direction of the pressure is unstable, which can easily cause the clamp and the sample to slip, thereby affecting the test results or even causing the sample to fail.

[0005] 2. To ensure uniform and stable bonding pressure, a vacuum bag combined with an autoclave curing method is usually required. This process is costly and cumbersome, which makes testing organizations less willing to undertake such bonding tasks, thus limiting the improvement of testing efficiency.

[0006] Therefore, there is an urgent need to develop a new type of tooling that can achieve precise alignment of the sample during the bonding process and apply stable pressure, so as to simplify the preparation process, reduce costs, and improve the reliability and efficiency of testing. Utility Model Content

[0007] To address the technical problems in the background art, this utility model discloses a tooling for assisting in the bonding of a planar tensile specimen to a test clamp block.

[0008] This utility model provides a tooling for assisting in the bonding of a planar tensile specimen to a test clamp, comprising:

[0009] The base is horizontally arranged.

[0010] A fixed frame is installed at the top of the base;

[0011] The skateboard is vertically mounted within a fixed frame;

[0012] The bonded test clamp and sample are placed inside the fixed frame and located on one side of the slide plate; the test clamp and sample abut against the inner side of the fixed frame on both sides perpendicular to their direction of movement.

[0013] The drive bolt is threadedly connected to the fixed frame, and its threaded end abuts against the slide plate, driving the slide plate closer to the sample.

[0014] The slide is horizontally set on two opposite sides of the fixed frame, and its length direction is parallel to the moving direction of the slide.

[0015] Two pins are provided; the pins are arranged horizontally and parallel to the slide plate, one of which is inserted into the slide groove and the test clamp, and the other is inserted into the slide groove and the sample.

[0016] Furthermore, the fixed frame is rectangular and consists of a front side plate, a rear side plate, a left side plate, and a right side plate connected together; both ends of the opposite sides of the front side plate and the rear side plate are provided with vertically extending slots; both ends of the left side plate are respectively engaged with the slots at one end of the front side plate and the rear side plate; both ends of the right side plate are respectively engaged with the slots at the other end of the front side plate and the rear side plate.

[0017] Furthermore, the lower ends of the front panel, rear panel, left panel, and right panel are all provided with downward protruding locking blocks; the base is provided with locking holes for engaging the locking blocks.

[0018] Furthermore, support blocks are provided on the outer surfaces of the front panel, rear panel, left panel, and right panel, with the lower end face of the support block fitting against the upper end face of the base.

[0019] Furthermore, the inner surfaces of the front and rear side panels are provided with horizontally arranged guide grooves; the two ends of the slide plate are provided with sliders that engage with the guide grooves.

[0020] Furthermore, the inner surfaces of the front and rear side panels are provided with slots that extend vertically and pass through both ends; the slots are connected to the guide groove near the end of the drive bolt.

[0021] Furthermore, the guide grooves are arranged in two parallel lines, one above the other; each end of the slide plate is equipped with two sliders.

[0022] Furthermore, the guide grooves on the same side are located on the upper and lower sides of the slide groove.

[0023] Furthermore, the threaded end of the drive bolt is provided with a ball head.

[0024] The beneficial effects of this utility model are:

[0025] 1. By using the bidirectional contact constraint between the inner side of the fixed frame and the test clamp and the sample, combined with the guide and limiting structure of the horizontal slide and the pin, it is ensured that the sample and the clamp always maintain precise alignment during the bonding process. This effectively solves the slippage problem caused by the unstable pressure direction in traditional methods, and significantly improves the bonding position accuracy and the reliability of the test results.

[0026] 2. The mechanical pressure method of driving the slide plate with a drive bolt is adopted. The pressure direction is perpendicular to the sample plane and evenly distributed, avoiding the deviation of manual pressure. At the same time, the pressure can be precisely controlled by adjusting the thread, ensuring the consistency of the curing quality of the adhesive film.

[0027] 3. It abandons the complex processes of traditional autoclaves and vacuum bags, and only requires tooling and mechanical structure to complete the bonding and pressurization, which greatly reduces equipment dependence and operation difficulty, shortens preparation time, and improves testing efficiency. It is especially suitable for routine applications in small and medium-sized testing institutions.

[0028] 4. The large contact area between the slide plate and the sample results in more uniform force distribution on the test clamp and the sample, leading to a stronger bond.

[0029] 5. The drive bolt only pushes the slide plate closer to the sample without causing the slide plate to move in the opposite direction. This not only makes the structure of this utility model simpler, but also makes the reverse movement of the slide plate by hand more efficient and faster. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] Figure 1 This is a schematic diagram of the structure of this utility model;

[0032] Figure 2 This is a top view of the present invention;

[0033] Figure 3 yes Figure 2 Sectional view of AA;

[0034] Figure 4 This is an exploded view of this utility model;

[0035] In the diagram: 1. Base; 2. Slide plate; 3. Test clamp; 4. Sample; 5. Drive bolt; 6. Slide groove; 7. Pin; 8. Front side plate; 9. Rear side plate; 10. Left side plate; 11. Right side plate; 12. Slot; 13. Clamp; 14. Clamp hole; 15. Guide groove; 16. Slider; 17. Support block; 18. Slot; 19. Screw sleeve. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0037] like Figure 1-4 As shown, this utility model discloses a tooling for assisting in the bonding of a planar tensile specimen to a test clamp, including a horizontally arranged base 1.

[0038] A vertically extending rectangular fixing frame is installed on the upper surface of the base 1; the fixing frame is composed of a connected front side plate 8, a rear side plate 9, a left side plate 10, and a right side plate 11. The front side plate 8 and the rear side plate 9 are opposite each other and have a symmetrical structure; the left side plate 10 and the right side plate 11 are arranged opposite each other.

[0039] The base 1 has multiple rectangular slots 14 that extend through the top and bottom sides; the lower ends of the front side plate 8, rear side plate 9, left side plate 10, and right side plate 11 are all provided with rectangular locking blocks 13 that engage with the slots 14. The front side plate 8 and rear side plate 9 have vertically extending slots 12 at both ends of their opposite sides; the two ends of the left side plate 10 engage with the slots 12 at one end of the front side plate 8 and rear side plate 9, respectively; the two ends of the right side plate 11 engage with the slots 12 at the other end of the front side plate 8 and rear side plate 9, respectively.

[0040] The above-mentioned configuration makes the tooling in this embodiment easy to assemble and disassemble, and also structurally stable, as it is assembled by snap-fit.

[0041] A vertically arranged sliding plate 2 is also provided inside the fixed frame, with its two sides abutting against the inner sides of the front side plate 8 and the rear side plate 9. A drive bolt 5 is threadedly connected to the right side plate 11, with its threaded end abutting against the sliding plate 2 to drive the sliding plate 2 to move.

[0042] To improve the stability of the sliding plate 2, two guide grooves 15 are provided on the inner sides of the front side plate 8 and the rear side plate 9, arranged vertically and at intervals; both sides of the sliding plate 2 are provided with sliders 16 that protrude and engage with the guide grooves 15.

[0043] To facilitate the installation of the slide plate 2, vertically extending slots 18 are provided on the inner surfaces of both the front side plate 8 and the rear side plate 9. The end of the guide groove 15 near the drive bolt 5 is connected to the slot 18.

[0044] To reduce the difficulty of machining the slot, both the slot 12 and the slot 18 extend through the upper and lower ends of the front side plate 8 and the rear side plate 9, and the other end of the guide slot 15 is connected to the slot 12.

[0045] The bonded test clamp 3 and sample 4 are placed inside the fixed frame and positioned between the left side plate 10 and the slide plate 2. The lower ends of the test clamp 3 and sample 4 abut against the upper surface of the molded part, and the two sides abut against the front side plate 8 and the rear side plate 9, respectively.

[0046] Tightening the drive bolt 5 moves the slide plate 2 towards the left side plate 10, clamping the bonded test clamp 3 and sample 4 between the left side plate 10 and the slide plate 2, thus securing them together. To prevent the bonded test clamp 3 and sample 4 from shifting upwards under pressure, the following design is implemented: horizontally extending grooves 6 are provided on the front side plate 8 and the rear side plate 9; through holes of the same height as the grooves 6 are provided on the test clamp 3 and sample 4, and the diameter of the through holes is the same as the width of the grooves 6. Two pins 7 are used, one inserted into the through hole of the groove 6 and the test clamp 3, and the other inserted into the through hole of the groove 6 and the sample 4. This configuration achieves vertical positioning of the test clamp 3 and sample 4, and the pins 7 inserted into the groove 6 also serve to limit the movement of the test clamp 3 and sample 4.

[0047] When the left side plate 10 and right side plate 11 engage with the front side plate 8 and rear side plate 9, they generate an outward pushing force on the front side plate 8 and rear side plate 9. The sliding plate 2, test clamp 3, and sample 4 also exert an outward pushing force on the front side plate 8 and rear side plate 9. This can cause instability in the position of the front side plate 8 and rear side plate 9. Therefore, right-angled triangular support blocks 17 are connected to the outer surfaces of both the front side plate 8 and rear side plate 9. One straight edge of the support block 17 is located on the lower side and is horizontally arranged, fitting against the upper surface of the base 1. In this way, the support block 17 provides support for the front side plate 8 and rear side plate 9, creating resistance to their outward misalignment, thereby maintaining the stability of their position.

[0048] When the left side plate 10 and the slide plate 2 clamp the test clamping block 3 and the sample 4, their reaction force will generate an outward pushing force on the left side plate 10, causing the left side plate 10 to be unstable. Therefore, the outer side of the left side plate 10 is provided with a support block 17 of the same structure.

[0049] When the drive bolt 5 pushes the slide plate 2 to move, the reaction force will also generate an outward thrust on the right side plate 11, causing the right side plate 11 to be unstable. Therefore, the outer side of the right side plate 11 is provided with a support block 17 of the same structure.

[0050] Because the right side plate 11 is relatively thin, the drive bolt 5 is directly threaded to the right side plate 11. However, the threaded hole is short and has poor stability. Therefore, a threaded sleeve 19 is inserted into the right side plate 11 and secured by bolts. The drive bolt 5 is threadedly connected to the threaded sleeve 19.

[0051] Compared to existing technologies, the advantages of this embodiment are: 1. By using the bidirectional contact constraint between the inner side of the fixed frame and the test clamp 3 and sample 4, combined with the guiding and limiting structure of the horizontal slide 6 and pin 7, it ensures that the sample 4 and the clamp remain precisely aligned during the bonding process, effectively solving the slippage problem caused by unstable pressure direction in traditional methods, and significantly improving the bonding position accuracy and test result reliability. 2. The mechanical pressure method of using the drive bolt 5 to push the slide plate 2 ensures that the pressure direction is perpendicular to the plane of the sample 4 and evenly distributed, avoiding the deviation of manual pressure application. At the same time, the pressure magnitude can be precisely controlled through thread adjustment, ensuring the consistency of the adhesive film curing quality. 3. It abandons the complex process of traditional autoclaves and vacuum bags, and only requires tooling mechanical structure to complete the bonding and pressure application, greatly reducing equipment dependence and operation difficulty, shortening preparation time, and improving testing efficiency, especially suitable for routine applications in small and medium-sized testing institutions. 4. The contact area between the slide plate 2 and the sample 4 is large, the test clamp 3 and the sample 4 are subjected to more uniform force, and the bonding is stronger. 5. The drive bolt 5 only pushes the slide plate 2 closer to the sample 4 without causing the slide plate 2 to move in the opposite direction. This not only makes the structure of this utility model simpler, but also makes the reverse movement of the slide plate 2 by hand more efficient and faster.

[0052] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A tooling for assisting in bonding a planar tensile specimen to a test clamp, characterized in that, include: The base (1) is arranged horizontally; A fixing frame is provided at the upper end of the base (1); The skateboard (2) is vertically installed within the fixed frame; The bonded test clamp (3) and sample (4) are placed inside the fixed frame and located on one side of the slide plate (2); the test clamp (3) and sample (4) abut against the inner side of the fixed frame on both sides perpendicular to their moving direction. The drive bolt (5) is threadedly connected to the fixed frame, and its threaded end abuts against the slide plate (2), driving the slide plate (2) to approach the sample (4); The slide (6) is horizontally set on two opposite sides of the fixed frame, and its length direction is parallel to the moving direction of the slide (2); Two pins (7) are provided; the pins (7) are arranged horizontally and parallel to the slide plate (2), one of which is inserted into the slide groove (6) and the test clamp (3), and the other is inserted into the slide groove (6) and the sample (4).

2. The tooling for bonding a planar tensile specimen to a test clamp block according to claim 1, characterized in that: The fixed frame is rectangular and consists of a front side plate (8), a rear side plate (9), a left side plate (10), and a right side plate (11) connected together. The front side plate (8) and the rear side plate (9) are provided with vertically extending slots (12) at both ends of their opposite sides; The two ends of the left side plate (10) are respectively engaged with the slots (12) at one end of the front side plate (8) and the rear side plate (9); The two ends of the right side plate (11) are respectively engaged with the slots (12) at the other ends of the front side plate (8) and the rear side plate (9).

3. The tooling for bonding a planar tensile specimen to a test clamp block according to claim 2, characterized in that: The lower ends of the front side plate (8), rear side plate (9), left side plate (10) and right side plate (11) are all provided with downward protruding locking blocks (13); The base (1) is provided with a card hole (14) for engaging the card block (13).

4. The tooling for bonding an auxiliary planar tensile specimen to a test clamp block according to claim 3, characterized in that: The outer surfaces of the front side plate (8), rear side plate (9), left side plate (10) and right side plate (11) are all provided with support blocks (17), and the lower end surface of the support block (17) is in contact with the upper end surface of the base (1).

5. The tooling for bonding a planar tensile specimen to a test clamp block according to claim 2, characterized in that: The inner surfaces of the front side plate (8) and the rear side plate (9) are provided with horizontally arranged guide grooves (15); The two ends of the slide plate (2) are provided with sliders (16) that engage with guide grooves (15).

6. The tooling for bonding a planar tensile specimen to a test clamp block according to claim 5, characterized in that: The inner surfaces of the front side plate (8) and the rear side plate (9) are provided with slots (18) that extend vertically and pass through both ends; The slot (18) is connected to the guide groove (15) at one end near the drive bolt (5).

7. The tooling for assisting in bonding a planar tensile specimen to a test clamp block according to claim 6, characterized in that: The guide groove (15) is configured as two parallel grooves running vertically. Each end of the skateboard (2) is provided with two sliders (16).

8. The tooling for assisting in bonding a planar tensile specimen to a test clamp block according to claim 7, characterized in that: The guide groove (15) on the same side is located on the upper and lower sides of the slide groove (6).

9. The tooling for assisting in bonding a planar tensile specimen to a test clamp block according to claim 1, characterized in that: The threaded end of the drive bolt (5) is provided with a ball head.

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