Drawing force cross lap joint test fixture

Abstract

The utility model provides a drawing force cross lap joint test fixture, which comprises an assembly I and an assembly II, the assembly I comprises a first sliding base station sleeved with a connecting block at the top of a tensile machine, and a fixed supporting seat A and a fixed supporting seat B are respectively connected to two sides of the first sliding base station in a penetrating and sliding manner; the second assembly comprises a second sliding base table connected with a connecting block at the bottom of the tensile machine in a sleeved mode, and a fixed supporting base C and a fixed supporting base D are connected to the two sides of the second sliding base table in a penetrating and sliding mode respectively. The first sliding base station and the second sliding base station are connected with the fixed supporting seat in a penetrating and sliding mode so as to test base materials with different lengths, and the first sliding base station and the second sliding base station are in a cross shape during assembling so as to support and fix the base materials to be tested in a cross lap joint mode.

Description

Technical Field

[0001] The utility model relates to a pull-out force cross-lap test fixture, belonging to the field of adhesive product testing. Background Art

[0002] The pull-out strength of an electronic adhesive refers to the maximum tensile force the adhesive can withstand under tensile stress. This refers to the maximum force the adhesive interface between the adhesive and the substrate can withstand in the tensile direction. This performance is directly related to the reliability and stability of structural adhesives in practical applications and is a key indicator of structural adhesive strength.

[0003] The cross-lap method is a method commonly used to test the pull-out force of adhesives. It forms a cross-shaped overlap structure between two mutually bonded objects and applies a tensile force on the structure to measure the force required to separate them, thereby evaluating the bond strength of the adhesive.

[0004] In practical applications, in order to understand the wettability of adhesives and substrates, ensure the reliability of adhesive performance, and meet diverse application requirements, it is necessary to test the pull-out force of adhesives relative to various substrates.

[0005] Existing pull-off force cross-lap test fixtures are complex in structure, difficult to operate, and cannot be used for substrates of different lengths and materials. Therefore, it is necessary to develop a pull-off force test fixture with a simple structure, easy operation, and suitable for substrates of different lengths and materials. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a tensile force cross lap test fixture to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the present invention is implemented through the following technical solutions:

[0008] A tensile force cross lap test fixture, comprising component one and component two,

[0009] The first component includes a first sliding base connected to the top connecting block of the tensile machine, and a fixed support seat A and a fixed support seat B are respectively slidably connected to the two sides of the first sliding base;

[0010] The second component includes a second sliding base connected to the bottom connecting block of the tensile machine, and a fixed support seat C and a fixed support seat D are respectively slidably connected on both sides of the second sliding base;

[0011] The sliding base includes an integrally formed base connecting block and a slide groove carrier, and both ends of the slide groove carrier are open slide grooves;

[0012] The fixed support seat includes an integrally formed slide groove chimera and a support foot, the slide groove chimera is at 90 degrees to the support foot, and the slide groove chimera includes a hollow portion;

[0013] The chute carrier is embedded in the hollow portion;

[0014] In the component 1, the support legs of the fixed support base A and the support legs of the fixed support base B are arranged opposite to each other;

[0015] In the second component, the support legs of the fixed support base C and the support legs of the fixed support base D are arranged opposite to each other;

[0016] During assembly, the first sliding base and the second sliding base are perpendicular to each other.

[0017] Furthermore, the top connecting block of the tensile testing machine has relatively arranged pin holes, the bottom connecting block of the tensile testing machine has relatively arranged pin holes, the number of the pin holes is 2 or 4, and the test fixture also includes pins matching the pin holes.

[0018] Furthermore, the top connecting block of the tensile testing machine or the bottom connecting block of the tensile testing machine is nested with the base connecting block, a pin is inserted, and the connection is tightened by rotating the knob.

[0019] Furthermore, the base connection block has relatively arranged pin holes, and the number of the pin holes is 2 or 4.

[0020] Furthermore, a threaded hole is provided on one side of the slide groove chimera, and the test fixture further includes a screw matching the threaded hole; preferably, the threaded hole is communicated with the hollow portion.

[0021] Furthermore, the cross-sectional shape of the open chute is one of H-shape, T-shape, U-shape, V-shape, X-shape, Y-shape, triangle, and I-shape; preferably, the hollow portion is consistent with the cross-sectional shape of the open chute.

[0022] Furthermore, the length of the supporting leg perpendicular to the plane where the slide groove chimera is located is 1-2 centimeters.

[0023] Furthermore, the first component is used to support the upper substrate of the sample to be tested, and the second component is used to fix the lower substrate of the sample to be tested. The upper substrate and the lower substrate are cross-lapped and bonded by an adhesive product to form a bonding area.

[0024] Beneficial effects of the utility model:

[0025] 1. The test fixture consists of component 1, which stretches the upper cross-lapped substrate upward, and component 2, which fixes the lower cross-lapped substrate. The main components are composed of a sliding base and a fixed support seat. The upper substrate is supported by the support feet of component 1, and the lower substrate is fixed by the support feet of component 2. The upper and lower substrates are fixed without the use of screws, and the structure is sophisticated.

[0026] 2. The open slides on both sides of the slide carrier on the sliding base are slidably connected with the hollow part of the slide chime on the fixed support seat. On the one hand, because the cross-sectional area of ​​the open slide is a concave and convex design, such as H-shape, T-shape, U-shape, V-shape, X-shape, Y-shape, triangle, I-shape, etc., it can be tightly matched and positioned, which can effectively prevent the slight tilt of the fixture during assembly from affecting the test results; on the other hand, the position of the fixed support seat can be adjusted according to the length of the substrate, which is suitable for the pull-out force test of adhesive products when cross-lapping substrates of different lengths.

[0027] 3. The test fixture is suitable for substrates of different materials, such as PC boards, SUS steel plates, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0029] Figure 1 This is an overall schematic diagram of a tensile force cross lap test fixture of the present invention when placed on a tensile testing machine;

[0030] Figure 2 This is a disassembled diagram of the components of a pull-out force cross-lap test fixture of the present invention;

[0031] Figure 3 This is a schematic diagram of the assembly of the first sliding base, the fixed support seat A and the fixed support seat B in a pull-out force cross-lap test fixture of the present invention;

[0032] Figure 4 This is a three-dimensional diagram of the first sliding base in a pull-out force cross-lap test fixture of the present invention;

[0033] Figure 5 This is a three-dimensional diagram of a fixed support base A in a pull-out force cross-lap test fixture of the present invention;

[0034] Figure 6 The utility model discloses a sample to be tested in a pull-out force cross-lap test fixture.

[0035] In the figure: 1-top connecting block of the tensile testing machine, 2-bottom connecting block of the tensile testing machine, 3-first sliding base, 4-second sliding base, 5-fixed support seat A, 6-fixed support seat B, 7-fixed support seat C, 8-fixed support seat D, 9-base connecting block, 10-slide bearing body, 11-slide chimera, 12-support foot, 13-hollow part, 14-pin hole, 15-pin, 16-threaded hole, 17-screw, 18-knob, 19-upper substrate, 20-lower substrate, 21-bonding area. DETAILED DESCRIPTION

[0036] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0037] See also Figures 1-6 , the utility model provides a technical solution: a tensile force cross lap test fixture, including component one and component two, the component one includes a first sliding base 3 connected to the top connecting block 1 of the tensile machine, and fixed support seats A5 and B6 are respectively slidably connected on both sides of the first sliding base 3; the component two includes a second sliding base 4 connected to the bottom connecting block 2 of the tensile machine, and fixed support seats C7 and D8 are respectively slidably connected on both sides of the second sliding base 4; the first sliding base 3 and the first sliding base 4 both include an integrally formed base connecting block 9 and a slide groove carrier 10, and the two ends of the slide groove carrier 10 are open slide grooves, and the cross-sectional shape of the open slide groove is an I-shaped; the fixed support seats A5, B6, C7, and D8 all include - integrally formed The slide groove chimera 11 and the support foot 12, the slide groove chimera 11 is 90° to the support foot 12, and the length of the support foot 12 perpendicular to the plane of the slide groove chimera 11 is 1.5 cm; the slide groove chimera 11 includes a hollow portion 13, the cross-sectional shape of the hollow portion 13 is I-shaped, slightly larger than the cross-sectional shape of the open slide groove, so that the open slide groove can pass through the hollow portion 13, so that the fixed support seat can slide through the sliding base; the slide groove carrier 10 is engaged with the hollow portion 13; in the component one, the support foot 12 of the fixed support seat A5 and the support foot 12 of the fixed support seat B6 are arranged relative to each other; in the component two, the support foot 12 of the fixed support seat C7 and the support foot 12 of the fixed support seat D8 are arranged relative to each other; when assembled, the first sliding base 3 and the second sliding base 4 are perpendicular to each other.

[0038] The top connecting block 1 of the tensile testing machine, the bottom connecting block 2 of the tensile testing machine, the base connecting block 9 of the first sliding base 3, and the base connecting block 9 of the second sliding base 4 are respectively provided with four opposite pin holes 14, and the test fixture also includes a pin 15 that matches the pin hole 14. The top connecting block 1 of the tensile testing machine is nested with the base connecting block 9 of the first sliding base 3, the four pin holes are respectively overlapped, the pin 15 is inserted, and the connection is tightened by rotating the knob 18; the bottom connecting block 2 of the tensile testing machine is nested with the base connecting block 9 of the second sliding base 4, the four pin holes are respectively overlapped, the pin 15 is inserted, and the connection is tightened by rotating the knob 18.

[0039] A threaded hole 16 is provided on one side of the slideway fitting 11 . The test fixture further includes a screw 17 matched with the threaded hole 16 . The threaded hole 16 communicates with the hollow portion 13 .

[0040] Working principle of the pull-out force cross lap test fixture:

[0041] (1) Sliding connection fixed support seat A5 and fixed support seat B6 are respectively passed through the two sides of the first sliding base 3; then the base connection block 9 of the first sliding base 3 is connected with the top connection block 1 of the tensile machine, the pin holes 14 are overlapped, the pin 15 is inserted, and the connection is tightened by rotating the knob 18.

[0042] (2) Sliding connection fixed support seat C7 and fixed support seat D8 are respectively passed through the two sides of the second sliding base 4; then the base connection block 9 of the second sliding base 4 is connected with the bottom connection block 2 of the tensile machine, and the first sliding base 3 and the second sliding base 4 are made into a cross shape, the pin holes 14 overlap, the pin 15 is inserted, and the connection is tightened by rotating the knob 18.

[0043] (3) According to the length of the upper substrate, move the fixed support seat A5 and the fixed support seat B6 on the first sliding base 3 to the appropriate positions respectively; according to the length of the lower substrate, move the fixed support seat C7 and the fixed support seat D8 on the second sliding base 4 to the appropriate positions respectively; then tighten the screws 17 of the threaded holes 16 on the sides of the fixed support seats A5, B6 and the fixed support seats C7 and D8 to prevent the fixed support seats from moving left and right.

[0044] (4) The substrate to be tested is cross-lapped, and the upper substrate 19 and the lower substrate 20 are bonded with an adhesive to form a bonding area 21; the substrate to be tested is supported by the support foot 12 of component one to support the upper substrate 19, and the support foot 12 of component two to fix the lower substrate 20; then the tensile testing machine controls component one to move upward at a constant speed to separate the upper substrate 19 and the lower substrate 20, and the maximum force value is recorded to complete the test.

[0045] Although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A tensile force cross lap test fixture, characterized in that: Including component one and component two, The first component includes a first sliding base connected to the top connecting block of the tensile machine, and a fixed support seat A and a fixed support seat B are respectively slidably connected to the two sides of the first sliding base; The second component includes a second sliding base connected to the bottom connecting block of the tensile machine, and a fixed support seat C and a fixed support seat D are respectively slidably connected on both sides of the second sliding base; The sliding base includes an integrally formed base connecting block and a slide groove carrier, and both ends of the slide groove carrier are open slide grooves; The fixed support seat includes an integrally formed slide groove chimera and a support foot, the slide groove chimera is at 90 degrees to the support foot, and the slide groove chimera includes a hollow portion; The chute carrier is embedded in the hollow portion; In the component 1, the support legs of the fixed support base A and the support legs of the fixed support base B are arranged opposite to each other; In the second component, the support legs of the fixed support base C and the support legs of the fixed support base D are arranged opposite to each other; During assembly, the first sliding base and the second sliding base are perpendicular to each other.

2. The pull-out force cross-lap test fixture according to claim 1, characterized in that: The top connecting block of the tensile testing machine has relatively arranged pin holes, and the bottom connecting block of the tensile testing machine has relatively arranged pin holes. The number of the pin holes is 2 or 4, and the test fixture also includes pins matching the pin holes.

3. The pull-out force cross-lap test fixture according to claim 1, characterized in that: The top connecting block of the tensile testing machine or the bottom connecting block of the tensile testing machine is nested with the base connecting block, a latch is inserted, and the connection is tightened by rotating the knob.

4. The pull-out force cross-lap test fixture according to claim 1, characterized in that: The base connection block has oppositely arranged pin holes, and the number of the pin holes is 2 or 4.

5. The pull-out force cross-lap test fixture according to claim 1, characterized in that: A threaded hole is provided on one side of the slideway chimera, and the test fixture further includes a screw matching the threaded hole.

6. The pull-out force cross-lap test fixture according to claim 5, characterized in that: The threaded hole is communicated with the hollow portion.

7. The pull-out force cross-lap test fixture according to claim 1, characterized in that: The cross-sectional shape of the open chute is one of H-shape, T-shape, U-shape, V-shape, X-shape, Y-shape, triangle and I-shape.

8. The pull-out force cross-lap test fixture according to claim 7, characterized in that: The cross-sectional shape of the hollow portion is consistent with that of the open chute.

9. The tensile force cross lap test fixture according to claim 1, characterized in that: The length of the supporting foot perpendicular to the plane where the slide groove chimera is located is 1-2 cm.

10. The tensile force cross lap test fixture according to any one of claims 1 to 9, characterized in that: The first component is used to support the upper substrate of the sample to be tested, and the second component is used to fix the lower substrate of the sample to be tested. The upper substrate and the lower substrate are cross-lapped and bonded by an adhesive product to form a bonding area.

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