Testing device for hot melting self-tapping connection joint

Abstract

The utility model discloses a testing device for a hot melting self-tapping connector, which relates to the technical field of hot melting self-tapping connector testing and comprises a first sample fixing block, a first test piece and a second test piece are clamped at the top end of the first sample fixing block, the second test piece is positioned at the top end close to the first test piece, and the second test piece is positioned at the top end close to the first test piece. A hot melting self-tapping screw body is mounted at the top end of the second test piece. By the adoption of the structure, the first clamping block is clamped into the first clamping groove, the second clamping block can be clamped into the circular groove along the second clamping groove, then the first clamping block is slightly rotated, the first clamping block can be clamped and limited, meanwhile, the positions of the first test piece and the second test piece can be clamped and limited, and when the first test piece and the second test piece need to be detached in the later period, the first test piece and the second test piece can be detached. The first clamping block can be directly pulled out only by adjusting the angle of the second clamping block to the position symmetrical to the angle of the second clamping groove, and then the purpose of conveniently and rapidly disassembling and assembling the first test piece and the second test piece can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot-melt self-tapping connection joint testing, in particular to a test device for hot-melt self-tapping connection joints. Background Art

[0002] The test device for hot-melt self-tapping connection joints is mainly used to test the mechanical properties of the joints to ensure their stability and reliability under various working conditions. The device usually includes a tensile testing machine, special fixtures and auxiliary equipment. The special fixtures can be designed according to the joint shape and test requirements to ensure that the joints are firmly fixed and evenly stressed during the test. Through this device, key data such as the load-displacement curve, maximum shear force, maximum deformation displacement, etc. of the joints can be obtained, providing an important basis for the design, optimization and quality control of the joints.

[0003] The Chinese patent publication number "CN211235244U" discloses a cross tensile test fixture for hot-melt self-tapping connection joints, comprising: a first specimen fixing block, with both ends of a first test piece mounted on the end face of the first specimen fixing block; a first fixing rod mounted on the other end face of the first specimen fixing block, the first fixing rod being connected to the tensile sleeve of a tensile testing machine via a first connecting pin, and a first locking component being provided on the first fixing rod; and a second specimen fixing block, with both ends of a second test piece mounted on one end face of the second specimen fixing block.

[0004] However, this device still has some shortcomings. Since the first test piece and the second test piece are fixed by screwing in bolts, when the first test piece or the second test piece needs to be removed for maintenance later, the user needs to unscrew each corresponding bolt before disassembling it. Since the bolts cannot be unscrewed directly, the user needs to use the corresponding bolt removal tool to complete it. While reducing the efficiency of disassembling the first test piece and the second test piece, it also reduces the efficiency of maintenance of the two in the future. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a testing device for hot-melt self-tapping connection joints to solve the problems raised by the above background technology.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A test device for a hot-melt self-tapping connection joint comprises a first sample fixing block, the top of the first sample fixing block is clamped with a first test piece and a second test piece, the second test piece is located close to the top of the first test piece, the top of the second test piece is installed with a hot-melt self-tapping body, the bottom end of the hot-melt self-tapping body is installed inside the first sample fixing block, the top of the hot-melt self-tapping body is provided with a connector, the tops of the first test piece and the second test piece are both provided with a first card slot, the inner wall of the first card slot is provided with a second card slot, the inner bottom end of the first card slot is provided with a circular groove, the inner side of the first card slot is clamped with the first card slot The outer side of the first clamping block is fixedly connected with a second clamping block matching the second clamping slot, the second clamping block is clamped to the inner side of the circular groove, the top of the first clamping block is fixedly connected with a sealing block, the sealing block covers the top of the first clamping slot, the top of the sealing block is fixedly connected with a first protrusion, the top of the first sample fixing block is installed with a second sample fixing block, the top of the second sample fixing block is threadedly connected with a connecting plate, the top of the connecting plate is rotatably connected with a rotating shaft, the top of the rotating shaft is installed with a fixing ring, the top of the fixing ring is installed with a fixing rod, the front side of the fixing rod is provided with a connecting pin hole, and the connecting pin hole passes through the fixing rod.

[0008] As an optimal technical solution, a retaining spring matching the second clamping block is installed at the inner bottom end of the circular groove, the bottom end of the second clamping block is clamped to the top end of the retaining spring, and the second clamping block is clamped to the inner side of the circular groove through the retaining spring.

[0009] As an optimal technical solution, a limiting groove is provided at the top of the second sample fixing block, and the limiting groove is provided on the four sides of the top corner of the second sample fixing block. The bottom end of the connecting plate is fixedly connected with a limiting block matching the limiting groove, and the limiting block is clamped on the inner side of the limiting groove.

[0010] As an optimal technical solution, a screw hole is provided at the top of the connecting plate, and the screw holes pass through the connecting plate and the top of the second sample fixing block. The inner side of the screw hole is threadedly connected with a bolt, and the bottom end of the bolt is threadedly connected to the inside of the second sample fixing block through the screw hole, and the connecting plate is threadedly connected to the top of the second sample fixing block through the bolt and the screw hole.

[0011] As an optimal technical solution, a slide groove is provided at the top of the connecting plate, the shape of the slide groove is circular, the inner bottom end of the slide groove is slidably connected to a slider, the rotating shaft is located on the inner side close to the slider, and the top of the slider is fixedly connected to the bottom end of the fixed ring.

[0012] As an optimal technical solution, the outer side of the slider is fixedly connected with a positioning plate, the bottom end of the positioning plate is affixed to the top end of the connecting plate, a card hole is provided at the top end of the positioning plate, the top end of the connecting plate is carded with a third card slot matching the card hole, the inner side of the card hole is carded with a third card block, the bottom end of the third card block is carded to the inside of the third card slot through the card hole, and the top end of the third card block is fixedly connected with a second protrusion.

[0013] As an optimal technical solution, the outer walls of the first sample fixing block and the second sample fixing block are coated with a wear-resistant layer, the thickness of the wear-resistant layer on the outer walls of the first sample fixing block and the second sample fixing block is one centimeter, and the wear-resistant layer on the outer walls of the first sample fixing block and the second sample fixing block is made of melamine resin material.

[0014] In summary, the present invention has the following beneficial effects:

[0015] When the first and second test pieces are to be removed later, it is only necessary to adjust the angle of the second clamping block to a position symmetrical with the angle of the second clamping slot, and then directly pull out the first clamping block, which not only facilitates and quickly disassembles the first and second test pieces, but also does not require the use of relative disassembly tools, thereby effectively improving the efficiency of rear-side disassembly and maintenance of the first and second test pieces.

[0016] Secondly, due to the presence of the rotating shaft, it is convenient to adjust the angle of the connecting pin hole. The slider can provide secondary support and limit the bottom end of the fixing ring without hindering the adjustment of the angle of the connecting pin hole, thereby effectively improving the stability of the angle adjustment of the fixing ring. The user can adjust the connecting pin hole to an angle that is convenient for connection according to needs, and then insert the third clamping block into the third clamping slot through the clamping hole, thereby effectively limiting the angle of the fixing rod and preventing the angle of the connecting pin hole from deviating. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the connecting plate structure of the utility model;

[0019] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure of part A;

[0020] Figure 4 This is a schematic structural diagram of the second sample fixing block of the present utility model;

[0021] Figure 5 This is a schematic structural diagram of the first sample fixing block of the utility model;

[0022] Figure 6 This utility model Figure 5 Schematic diagram of the enlarged structure of part B;

[0023] Figure 7 This is a schematic structural diagram of the first card block of the present utility model.

[0024] Figure numerals: 1. first sample fixing block; 2. first test piece; 3. second test piece; 4. hot melt self-tapping body; 5. connecting head; 6. first clamping groove; 7. second clamping groove; 8. circular groove; 9. retaining spring; 10. first clamping block; 11. second clamping block; 12. sealing block; 13. first protrusion; 14. second sample fixing block; 15. limiting groove; 16. screw hole; 17. connecting plate; 18. limiting block; 19. bolt; 20. rotating shaft; 21. slide groove; 22. slider; 23. positioning plate; 24. clamping hole; 25. third clamping block; 26. second protrusion; 27. third clamping groove; 28. fixing ring; 29. fixing rod; 30. connecting pin hole. DETAILED DESCRIPTION

[0025] Example

[0026] refer to Figures 1 to 7The present embodiment is a test device for a hot-melt self-tapping connection joint, comprising a first sample fixing block 1, the top of which is clamped with a first test piece 2 and a second test piece 3, the second test piece 3 being located close to the top of the first test piece 2, the top of the second test piece 3 being installed with a hot-melt self-tapping body 4, the bottom end of the hot-melt self-tapping body 4 being installed inside the first sample fixing block 1, the top of the hot-melt self-tapping body 4 being provided with a connector 5, the tops of the first test piece 2 and the second test piece 3 being provided with a first card slot 6, the inner wall of the first card slot 6 being provided with a second card slot Slot 7, a circular groove 8 is provided at the inner bottom end of the first card slot 6, a first card block 10 is clamped on the inner side of the first card slot 6, a second card block 11 matching the second card slot 7 is fixedly connected to the outer side of the first card block 10, the second card block 11 is clamped to the inner side of the circular groove 8, the top of the first card block 10 is fixedly connected to a sealing block 12, the sealing block 12 covers the top of the first card slot 6, the top of the sealing block 12 is fixedly connected to a first protrusion 13, the top of the first sample fixing block 1 is installed with a second sample fixing block 14, the top screw of the second sample fixing block 14 The groove is connected with a connecting plate 17, and the top of the connecting plate 17 is rotatably connected with a rotating shaft 20. The top of the rotating shaft 20 is installed with a fixing ring 28, and the top of the fixing ring 28 is installed with a fixing rod 29. The front side of the fixing rod 29 is provided with a connecting pin hole 30, and the connecting pin hole 30 passes through the fixing rod 29. In order to facilitate the later test of the connector 5, the first test piece 2 and the second test piece 3 are placed in the position, and then the first card block 10 is inserted into the first card slot 6. Due to the opening of the second card slot 7, it is convenient for the second card block 11 to be inserted into the circular groove 8, and then the user By slightly rotating the first clamping block 10 through the first protrusion 13, the angle of the second clamping block 11 is adjusted to an angle that is not corresponding to the second clamping slot 7, thereby limiting the position of the first clamping block 10, which can effectively prevent the first test piece 2 or the second test piece 3 from being displaced. When the two need to be disassembled later, the angle of the second clamping block 11 is adjusted to a position symmetrical to the angle of the second clamping slot 7 through the first protrusion 13, and then the first clamping block 10 can be directly pulled out. After the first clamping block 10 is pulled out, the first test piece 2 and the second test piece 3 can be directly removed.

[0027] refer to Figures 5 to 7 A retaining spring 9 matching the second clamping block 11 is installed at the bottom inner end of the circular groove 8. The bottom end of the second clamping block 11 is clamped to the top end of the retaining spring 9. The second clamping block 11 is clamped to the inner side of the circular groove 8 through the retaining spring 9. Due to the presence of the retaining spring 9, the mutual clamping of the retaining spring 9 and the second clamping block 11 can perform secondary limiting on the clamping point of the first clamping block 10, thereby effectively improving the stability of the position limiting of the first test piece 2 and the second test piece 3.

[0028] refer to Figures 1 to 4A limiting groove 15 is provided at the top of the second sample fixing block 14. The limiting groove 15 is provided on the four sides of the top corner of the second sample fixing block 14. The bottom end of the connecting plate 17 is fixedly connected with a limiting block 18 matching the limiting groove 15. The limiting block 18 is snapped into the inner side of the limiting groove 15. Due to the existence of the limiting block 18, the snapping of the limiting block 18 can effectively limit the position of the connecting plate 17, thereby effectively improving the stability and accuracy of the fixing of the limiting plate position.

[0029] refer to Figures 1 to 4 , a screw hole 16 is provided at the top of the connecting plate 17, and the screw holes 16 pass through the connecting plate 17 and the top of the second sample fixing block 14. The inner side of the screw hole 16 is threadedly connected with a bolt 19, and the bottom end of the bolt 19 is threadedly connected to the inside of the second sample fixing block 14 through the screw hole 16. The connecting plate 17 is threadedly connected to the top of the second sample fixing block 14 through the bolt 19 and the screw hole 16. Due to the presence of the bolt 19, the screwing of the bolt 19 can effectively fix the position of the connecting plate 17, which can prevent the connecting plate 17 from being displaced or loosened. When disassembling the connecting plate 17, just unscrew the bolt 19. At the same time, the connecting plate 17 can also take out its own top structure so that the user can maintain it later.

[0030] refer to Figures 1 to 4 The top of the connecting plate 17 is provided with a slide groove 21, which is circular in shape. The inner bottom end of the slide groove 21 is slidably connected to a slider 22. The rotating shaft 20 is located on the inner side close to the slider 22. The top of the slider 22 is fixedly connected to the bottom end of the fixing ring 28. The outer side of the slider 22 is fixedly connected to a positioning plate 23. The bottom end of the positioning plate 23 is attached to the top of the connecting plate 17. The top of the positioning plate 23 is provided with a card hole 24. The top of the connecting plate 17 is clamped with a third card groove 27 matching the card hole 24. The inner side of the card hole 24 is clamped with a third card block 25. The bottom end of the third card block 25 is clamped with the third card groove 27 through the card hole 24. 7, the top of the third clamping block 25 is fixedly connected to the second protrusion 26. Due to the existence of the rotating shaft 20, it is convenient to adjust the angle of the connecting pin hole 30. The slider 22 can provide secondary support and limit the bottom end of the fixing ring 28 without hindering the adjustment of the angle of the connecting pin hole 30, thereby effectively improving the stability of the angle adjustment of the fixing ring 28. The user can adjust the connecting pin hole 30 to an angle that is convenient for connection as needed, and then insert the third clamping block 25 into the third clamping groove 27 through the clamping hole 24, thereby effectively limiting the angle of the fixing rod 29, and preventing the angle of the connecting pin hole 30 from deviating.

[0031] refer to Figure 1The outer walls of the first sample fixing block 1 and the second sample fixing block 14 are coated with a wear-resistant layer. The thickness of the wear-resistant layer on the outer walls of the first sample fixing block 1 and the second sample fixing block 14 is one centimeter. The wear-resistant layer on the outer walls of the first sample fixing block 1 and the second sample fixing block 14 is made of melamine resin material. Due to the presence of the wear-resistant layer, the wear-resistant layer is a wear-resistant coating. The melamine resin material gives the surface of the first sample fixing block 1 and the second sample fixing block 14 wear-resistant, scratch-resistant, pollution-resistant, corrosion-resistant, moisture-proof and other properties, thereby effectively improving the service life of the first sample fixing block 1 and the second sample fixing block 14.

[0032] Principle and advantages of use: When in use, in order to facilitate the later test of the connector 5, first place the first test piece 2 and the second test piece 3, and then insert the first clamping block 10 into the first clamping groove 6. Due to the opening of the second clamping groove 7, it is convenient for the second clamping block 11 to be clamped into the circular groove 8. Then the user slightly rotates the first clamping block 10 through the first protrusion 13 to adjust the angle of the second clamping block 11 to an angle that is not corresponding to the second clamping groove 7, thereby limiting the position of the first clamping block 10, which can effectively avoid the first test piece 2 and the second test piece 3 being stuck. When the first test piece 2 or the second test piece 3 is displaced and the two need to be disassembled later, the angle of the second clamping block 11 is adjusted to a position symmetrical with the angle of the second clamping slot 7 through the first protrusion 13, and then the first clamping block 10 can be directly pulled out. After the first clamping block 10 is pulled out, the first test piece 2 and the second test piece 3 can be directly disassembled. Due to the existence of the retaining spring 9, the mutual engagement of the retaining spring 9 and the second clamping block 11 can perform a secondary limit on the contact point of the first clamping block 10, thereby effectively improving the stability of the position limit of the first test piece 2 and the second test piece 3. The third latch 25 is then engaged with the third latching slot 27 to allow the third latching slot 27 to be engaged with the third latching slot 27, thereby effectively limiting the angle of the fixing rod 29 and preventing the angle of the fixing rod 29 from being displaced.

Claims

1. A test device for hot melt self-tapping connection joints, comprising a first sample fixing block (1), characterized in that: The top of the first sample fixing block (1) is clamped with a first test piece (2) and a second test piece (3), the second test piece (3) is located close to the top of the first test piece (2), the top of the second test piece (3) is installed with a hot melt self-tapping body (4), the bottom of the hot melt self-tapping body (4) is installed inside the first sample fixing block (1), the top of the hot melt self-tapping body (4) is provided with a connector (5), the tops of the first test piece (2) and the second test piece (3) are both provided with a first card slot (6), the inner wall of the first card slot (6) is provided with a second card slot (7), the inner bottom end of the first card slot (6) is provided with a circular groove (8), the inner side of the first card slot (6) is clamped with a first card block (10), the outer side of the first card block (10) is fixedly connected with a second card slot (7) that matches the second card slot (7). The clamping block (11) is clamped to the inner side of the circular groove (8), the top of the first clamping block (10) is fixedly connected to a sealing block (12), the sealing block (12) covers the top of the first clamping groove (6), the top of the sealing block (12) is fixedly connected to a first protrusion (13), the top of the first sample fixing block (1) is installed with a second sample fixing block (14), the top of the second sample fixing block (14) is threadedly connected to a connecting plate (17), the top of the connecting plate (17) is rotatably connected to a rotating shaft (20), the top of the rotating shaft (20) is installed with a fixing ring (28), the top of the fixing ring (28) is installed with a fixing rod (29), the front side of the fixing rod (29) is provided with a connecting pin hole (30), and the connecting pin hole (30) passes through the fixing rod (29).

2. A test device for hot melt self-tapping connection joints according to claim 1, characterized in that: A retaining spring (9) matching the second clamping block (11) is installed at the inner bottom end of the circular groove (8), the bottom end of the second clamping block (11) is clamped to the top end of the retaining spring (9), and the second clamping block (11) is clamped to the inner side of the circular groove (8) through the retaining spring (9).

3. A testing device for hot melt self-tapping joints according to claim 1, characterized in that: A limiting groove (15) is provided at the top of the second sample fixing block (14), and the limiting groove (15) is provided on four sides of the top of the second sample fixing block (14) close to the corners. A limiting block (18) matching the limiting groove (15) is fixedly connected to the bottom end of the connecting plate (17), and the limiting block (18) is clamped on the inner side of the limiting groove (15).

4. A testing device for hot melt self-tapping connection joints according to claim 1, characterized in that: The top of the connecting plate (17) is provided with a screw hole (16), and the screw hole (16) passes through the connecting plate (17) and the top of the second sample fixing block (14). The inner side of the screw hole (16) is threadedly connected with a bolt (19), and the bottom end of the bolt (19) is threadedly connected to the inside of the second sample fixing block (14) through the screw hole (16). The connecting plate (17) is threadedly connected to the top of the second sample fixing block (14) through the bolt (19) and the screw hole (16).

5. The testing device for hot melt self-tapping connection joints according to claim 1, characterized in that: A slide groove (21) is provided at the top of the connecting plate (17), and the shape of the slide groove (21) is circular. The inner bottom end of the slide groove (21) is slidably connected to a slider (22). The rotating shaft (20) is located on the inner side close to the slider (22), and the top end of the slider (22) is fixedly connected to the bottom end of the fixing ring (28).

6. A testing device for hot melt self-tapping joints according to claim 5, characterized in that: The outer side of the slider (22) is fixedly connected with a positioning plate (23), the bottom end of the positioning plate (23) is in contact with the top end of the connecting plate (17), the top end of the positioning plate (23) is provided with a clamping hole (24), the top end of the connecting plate (17) is clamped with a third clamping groove (27) matching the clamping hole (24), the inner side of the clamping hole (24) is clamped with a third clamping block (25), the bottom end of the third clamping block (25) is clamped with the inside of the third clamping groove (27) through the clamping hole (24), and the top end of the third clamping block (25) is fixedly connected with a second protrusion (26).

7. A testing device for hot melt self-tapping connection joints according to claim 1, characterized in that: The outer walls of the first sample fixing block (1) and the second sample fixing block (14) are both coated with a wear-resistant layer, the thickness of the wear-resistant layer on the outer walls of the first sample fixing block (1) and the second sample fixing block (14) is one centimeter, and the wear-resistant layer on the outer walls of the first sample fixing block (1) and the second sample fixing block (14) is made of melamine resin material.

Images