Bond strength test method for uneven working surfaces

Abstract

The patent of the present invention relates to the technical field of bonding strength testing equipment, specifically a bonding strength testing method suitable for uneven working surfaces, comprising the following steps: after bonding the standard block and the testing block, connecting the end of the pulling rod of the pulling testing equipment to the standard block, and placing the two supporting legs of the pulling testing equipment against the working surface; driving the telescopic leg to extend from the telescopic hole in the supporting leg through the driving mechanism on the supporting leg, and resting on the working surface, cooperating with another telescopic leg, finally making the pulling rod and the standard block remain vertical; limiting the telescopic leg; pulling test; this method can extend and retract the length of the telescopic leg on the supporting leg and fix it through the adjusting mechanism and the limiting assembly, and cooperate with another telescopic leg to adjust the positioning plate on the uneven working surface, and finally making the pulling rod and the standard block remain vertical, so that the pulling force after the test is completed is more accurate.

Description

Technical Field

[0001] The invention patent relates to the technical field of bonding strength detection equipment, specifically a bonding strength detection method suitable for uneven working surfaces. Background Art

[0002] The existing bonding strength tester is a device used to test the bonding strength of materials such as exterior wall facing tiles, exterior wall insulation materials, mosaics, various panels and paints. Its structure includes a standard block, a ball head universal rod, a connecting pin, a sensor, a directional force transmission screw, a ball nut, a support positioning plate, a support leg, a digital display tension meter, a handle, etc.; the upper end of the standard block is connected to the ball head end of the ball head universal rod, the other end of the ball head universal rod is connected to one end of the sensor through a connecting pin, the other end of the sensor is connected to one end of the directional force transmission screw through a connecting pin, the other end of the directional force transmission screw is positioned on the support positioning plate through a ball nut, the support leg is fixedly connected to the support positioning plate, and the digital display tension meter is fixed to the support positioning plate.

[0003] When the existing bonding strength tester of this type is working, the standard block is fixed to the working surface of the test block by epoxy adhesive. After the bonding is firm, the directional force transmission screw is connected to the standard block. As the handle is turned, the pulling force on the standard part gradually increases until the test block is peeled off, and the corresponding pressure indication is displayed by the digital tension instrument.

[0004] At present, when testing the bonding strength for the uneven working surface, the existing application number CN202221202323.5 bonding strength detector includes a device body, a body mechanism, an adjustment mechanism and a fixing mechanism, wherein the body mechanism is located above the device body, and the adjustment mechanism is located inside the body mechanism. The bonding strength detector is provided with a pressing spring inside the pressing groove, and when the movable foot and the support rod are connected, the pressing block is compressed and deformed by the pressing spring and retracted to the inside of the pressing groove, and then the pressing block is made to pass through the fixing hole from the left side of the adjustment hole and emerge from the right side of the adjustment hole. At this time, the pressing block is fast rebounded by the pressing spring, so that the pressing block is stuck at the outer end of the support rod, and the movable foot and the support rod are connected together; the applicant found in the actual use process that the prior art is adjusted by adjusting holes arranged at intervals, and the step distance of the adjusting holes is large, which is not suitable for continuous and precise fine-tuning. When the horizontal difference of the working surface where the two legs are located does not meet the integer multiple of the spacing between the adjusting holes, when the bonding strength detector is used, it is still impossible to ensure that the pull rod and the standard block remain vertical, and the accuracy of the measurement result cannot be guaranteed.

[0005] In view of the shortcomings of the prior art, the present invention provides a bonding strength detection method suitable for uneven working surfaces, which can overcome the detection data deviation caused by the uneven working surface.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions: A bonding strength detection method suitable for uneven working surfaces comprises the following steps: Step 1: After bonding the standard block and the test block, connect the end of the pull rod of the pull test equipment to the standard block; specifically, the pull test equipment includes a positioning plate and two supporting legs installed on the right sides of the positioning plate, a pull rod is slidably connected to the middle of the positioning plate, and a tension sensor is installed on the pull rod; Step 2: A telescopic hole is provided at one end of the two supporting legs away from the positioning plate, and the two telescopic holes are slidably connected with the telescopic legs; an adjustment mechanism is provided on the two supporting legs, and the adjustment mechanism is connected with the telescopic legs, and the adjustment mechanism includes an adjustment screw arranged in the telescopic hole, and a longitudinally arranged threaded hole is provided on the telescopic leg, and the adjustment screw is threadedly connected with the threaded hole, and a driving mechanism is connected to the upper end of the adjusting screw, and the driving mechanism is rotatably connected with the supporting leg; the telescopic leg is driven by the driving mechanism on the supporting leg to extend from the telescopic hole in the supporting leg, and rest against the working surface, and cooperate with the other telescopic leg, so that the pull rod and the standard block are finally kept vertical; Step 3: A limit assembly is provided on the adjustment mechanism to adjust the telescopic leg to extend out of the telescopic hole to a preset length; the telescopic leg is limited by the limit assembly; Step 4: Peel the standard block off the working surface through the pull rod, and display the corresponding pressure reading through the tension sensor.

[0007] Preferably, the driving mechanism includes a driving rod, the lower end of which is fixedly connected to the adjusting screw, a sliding hole penetrating to the telescopic hole is provided on the supporting leg, the upper end of the driving rod passes through the sliding hole and is fixedly connected to a hand-tightening cap; a limiting groove penetrating the sliding hole is provided on the supporting leg at the middle position of the sliding hole, a limiting ring is arranged in the limiting groove, the limiting ring is sleeved on the driving rod and fixedly connected to the driving rod, and the limiting ring is connected to the limiting assembly.

[0008] Preferably, a control hole and a limiting slide connected to the control hole are provided on the supporting leg, and the limiting slide runs through the limiting slot; the limiting assembly includes a limiting plate slidably connected in the limiting slide, a plurality of card slots are provided on the outer wall of the limiting ring in an annular direction, a plurality of card blocks adapted to the card slots are provided on the side of the limiting plate close to the limiting ring, a rotating hole is provided in the middle position of the limiting plate, a T-shaped rotating block is rotatably connected in the rotating hole, the thinner end of the T-shaped rotating block passes through the rotating hole and is connected to a control rod, and the other end of the control rod passes through the control hole; a plurality of positioning grooves are provided on the supporting leg along the annular direction of the control hole, the positioning grooves are connected to the control hole and connected to the limiting slide, and a positioning block adapted to the positioning groove is provided on the outer wall of the control rod.

[0009] Preferably, one end of the control rod away from the limiting plate is fixedly connected to a control cap, and the outer wall of the control cap is provided with a plurality of anti-slip grooves.

[0010] Preferably, four corners of the limiting plate on one side close to the control rod are fixedly connected with contraction springs, and the other ends of the four contraction springs are fixedly connected to the inner wall of the limiting sliding groove.

[0011] Preferably, anti-slip grooves are provided on both inner walls of the telescopic hole, and anti-slip blocks are fixedly connected to both sides of one end of the telescopic leg close to the positioning plate, and the anti-slip blocks are slidably connected in the anti-slip grooves.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This type of bonding strength testing equipment can extend and retract the length of the telescopic leg on the supporting leg and fix it through the adjustment mechanism and the limit assembly. In conjunction with another telescopic leg, the positioning plate can be adjusted on an uneven work surface, and ultimately the pull rod and the standard block can be kept vertical, making the pulling force after the test more accurate; continuous adjustment of the telescopic leg is achieved through the adjustment screw, which improves the operating accuracy of the equipment and is suitable for use on work surfaces of any flatness. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the drawing detection device in the present invention; Figure 2 It is a schematic cross-sectional view of the supporting leg structure in the present invention; Figure 3 It is an exploded schematic diagram of the connection structure between the support leg and the telescopic leg in the present invention; Figure 4 It is a schematic cross-sectional view of the supporting leg structure at another angle in the present invention; Figure 5 It is a schematic diagram of the connection structure between the adjustment mechanism and the limit assembly in the present invention; Figure 6 It is a schematic diagram of the separation structure of the adjustment mechanism and the limit assembly from the support leg in the present invention; Figure 7 It is a schematic diagram of the connection structure of the limit assembly in the present invention; Figure 8 It is a schematic diagram of the explosion structure of the limiting component in the present invention; Fig. 9 It is a schematic diagram of the connection structure of the adjustment mechanism and the limit assembly with the support leg in the present invention; Fig.10 for Fig. 9 A magnified schematic diagram of the connection structure at center A; Fig.11 It is a schematic diagram of the structure of the limiting component in the present invention when it is not limiting.

[0014] In the figure: 1. positioning plate; 2. supporting leg; 3. pulling rod; 4. standard block; 5. telescopic leg; 6. adjusting screw; 7. driving rod; 8. hand screw cap; 9. limiting ring; 10. limiting plate; 11. clamping block; 12. T-shaped rotating block; 13. control rod; 14. positioning block; 15. control cap; 16. contraction spring; 17. anti-slip block; 101. rotating hole; 102. anti-slip groove; 201. telescopic hole; 202. sliding hole; 203. limiting groove; 204. limiting sliding groove; 205. control hole; 206. positioning groove; 207. anti-slip groove; 501. threaded hole; 901. clamping groove. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0016] like Figures 1 to 11 As shown, the present invention also relates to a bonding strength detection method suitable for uneven working surfaces, comprising the following steps: Step 1: After bonding the standard block 4 to the test block, connect the end of the pull rod 3 of the pull test equipment to the standard block 4.

[0017] Specifically, the pull-out detection device includes a positioning plate 1 and two supporting legs 2 installed on the left and right sides of the positioning plate 1. A pull-out rod 3 is slidably connected to the middle of the positioning plate 1. A tension sensor 13 is installed on the pull-out rod 3. The lower end of the pull-out rod 3 is used to connect the standard block 4. The pull-out detection device in the patent of the present invention is similar in structure to the existing exterior wall detection equipment, such as a bonding strength tester with the model LR-6000C.

[0018] Step 2: The two support legs 2 are provided with telescopic holes 201 at one end away from the positioning plate 1, and the telescopic legs 5 are slidably connected in the two telescopic holes 201; the two support legs 2 are provided with adjustment mechanisms, and the adjustment mechanisms are connected to the telescopic legs 5, such as Figure 2 - Figure 4 As shown, the adjustment mechanism includes an adjusting screw 6 arranged in the telescopic hole 201, a longitudinally arranged threaded hole 501 is opened on the telescopic leg 5, the adjusting screw 6 is threadedly connected to the threaded hole 501, and the upper end of the adjusting screw 6 is connected to a driving mechanism, which is rotatably connected to the support leg 2; the telescopic leg 5 is driven by the driving mechanism on the support leg 2 to extend out of the telescopic hole 201 in the support leg 2 and rest against the working surface, cooperating with another telescopic leg 5, so that the pulling rod 3 and the standard block 4 are finally kept vertical.

[0019] like Figure 1 - Figure 6As shown, the driving mechanism includes a driving rod 7, the lower end of the driving rod 7 is fixedly connected to the adjusting screw 6, a sliding hole 202 penetrating to the telescopic hole 201 is opened on the supporting leg 2, the upper end of the driving rod 7 passes through the sliding hole 202 and is fixedly connected with a hand-tightening cap 8; the hand-tightening cap 8 is exposed on the supporting leg 2 for easy height adjustment; a limiting groove 203 penetrating the sliding hole 202 is opened on the supporting leg 2 at the middle position of the sliding hole 202, a limiting ring 9 is arranged in the limiting groove 203, the limiting ring 9 is sleeved on the driving rod 7 and fixedly connected to the driving rod 7, and the limiting ring 9 is connected to the limiting assembly.

[0020] During adjustment, the driving rod 7 is driven to rotate by twisting the hand screw cap 8. When the rotating driving rod 7 rotates, the limiting ring 9 rotates in the limiting groove 203 to keep the driving rod 7 from rotating in the sliding hole 202 without position shifting. Then, when driving the adjusting screw 6 to rotate, the adjusting screw 6 is kept from moving up and down, ensuring that the telescopic leg 5 is driven to telescope and move in the telescopic hole 201 and adjusted to a suitable position.

[0021] Step 3: A limit assembly is provided on the adjustment mechanism to adjust the telescopic leg 5 to extend out of the telescopic hole 201 to a preset length; the telescopic leg 5 is limited by the limit assembly.

[0022] like Figure 1 - Fig.11 As shown, the support leg 2 is provided with a control hole 205 and a limiting slide groove 204 connected to the control hole 205, and the limiting slide groove 204 is set through the limiting groove 203; the limiting assembly includes a limiting plate 10 slidably connected to the limiting slide groove 204, a plurality of card grooves 901 are circumferentially provided on the outer wall of the limiting ring 9, a plurality of card blocks 11 adapted to the card grooves 901 are provided on the side of the limiting plate 10 close to the limiting ring 9, and a rotating hole 1 is provided in the middle position of the limiting plate 10 01, a T-shaped rotating block 12 is rotatably connected in the rotating hole 101, the thinner end of the T-shaped rotating block 12 passes through the rotating hole 101 and is connected to the control rod 13, and the other end of the control rod 13 passes through the control hole 205; a plurality of positioning grooves 206 are circumferentially opened on the support leg 2 along the control hole 205, the positioning grooves 206 are connected to the control hole 205 and connected to the limiting slide groove 204, and a positioning block 14 adapted to the positioning groove 206 is provided on the outer wall of the control rod 13.

[0023] After completing the telescopic adjustment of the telescopic leg 5, by rotating the control rod 13 and squeezing it in the direction of the limit ring 9, the two positioning blocks 14 are driven to slide toward the limiting slide groove 204 through the positioning groove 206, and at the same time, the limiting plate 10 is moved closer to the limiting ring 9 through the T-shaped rotating block 12, and multiple card blocks 11 are inserted into the corresponding card grooves 901 on the limiting ring 9, thereby preventing the rotation of the limiting ring 9 and limiting the telescopic leg 5. Then, the control rod 13 is rotated again to misalign the two positioning blocks 14 with the two positioning grooves 206 and press them against the limiting slide groove 204 to prevent the limiting assembly from moving outward and maintain the fixing effect on the telescopic leg 5.

[0024] Further, such as Figure 2 - Figure 4 As shown, anti-slip grooves 207 are provided on both inner walls of the telescopic hole 201, and anti-slip blocks 17 are fixedly connected to both sides of the telescopic leg 5 near the end of the positioning plate 1, and the anti-slip blocks 17 are slidably connected in the anti-slip grooves 207. When the telescopic leg 5 extends outward from the telescopic hole 201, the connection between the anti-slip block 17 and the anti-slip groove 207 can prevent the telescopic leg 5 from extending too much from the telescopic hole 201, causing the telescopic leg 5 to fall off from the telescopic hole 201, thereby improving the connection stability between the telescopic leg 5 and the telescopic hole 201.

[0025] Step 4: The standard block 4 is peeled off from the working surface by the pulling rod 3, and the corresponding pressure reading is displayed by the tension sensor 13.

[0026] Further, such as Figure 1 - Fig.11 As shown, the end of the control rod 13 away from the limit plate 10 is fixedly connected to the control cap 15, and the outer wall of the control cap 15 is provided with a plurality of anti-skid grooves 102. When rotating the control rod 13, the control cap 15 can be rotated more conveniently by manually twisting the control rod 13. At the same time, the provision of the anti-skid grooves 102 can prevent the control cap 15 from slipping when twisting, and twisting and rotating is easier.

[0027] Further, such as Figure 5 - Fig.11 As shown, the four corners of the limiting plate 10 on one side close to the control rod 13 are fixedly connected with contraction springs 16 , and the other ends of the four contraction springs 16 are fixedly connected to the inner wall of the limiting sliding groove 204 .

[0028] Correspondingly, step five: after the detection is completed, rotate the control rod 13 to drive the two positioning blocks 14 to move to the position of the positioning groove 206. The contraction spring 16 always provides elastic force to the limit plate 10, so that when the two positioning blocks 14 move to the position of the two positioning grooves 206, the positioning blocks 14 are slid out through the positioning grooves 206 by the elastic force, so that the limit plate 10 is separated from the clamping block 11 and the limit ring 9. At this time, the telescopic leg 5 can be retracted into the telescopic hole 201 of the support leg 2 by rotating the hand-tightening cap 8.

[0029] This type of bonding strength testing equipment can extend and retract the length of the telescopic leg on the supporting leg and fix it through the adjustment mechanism and the limit assembly. In conjunction with another telescopic leg, the positioning plate can be adjusted on an uneven work surface, and ultimately the pull rod and the standard block can be kept vertical, making the pulling force after the test more accurate; continuous adjustment of the telescopic leg is achieved through the adjustment screw, which improves the operating accuracy of the equipment and is suitable for use on work surfaces of any flatness.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A bonding strength detection method suitable for uneven working surfaces, characterized in that: The following steps are involved: Step 1: After bonding the standard block (4) to the test block, the end of the pull rod (3) of the pull test device is connected to the standard block (4); specifically, the pull test device comprises a positioning plate (1) and two support legs (2) mounted on the left and right sides of the positioning plate (1); a pull rod (3) is slidably connected to the middle of the positioning plate (1); and a tension sensor (13) is mounted on the pull rod (3); Step 2: A telescopic hole (201) is provided at one end of the two supporting legs (2) away from the positioning plate (1), and a telescopic leg (5) is slidably connected in each of the two telescopic holes (201); an adjustment mechanism is provided on each of the two supporting legs (2), and the adjustment mechanism is connected to the telescopic leg (5), and the adjustment mechanism comprises an adjustment screw (6) arranged in the telescopic hole (201); a longitudinally arranged threaded hole (501) is provided on the telescopic leg (5), and the adjustment screw (6) is threadedly connected to the threaded hole (501); a driving mechanism is connected to the upper end of the adjustment screw (6), and the driving mechanism is rotatably connected to the supporting leg (2); the driving mechanism on the supporting leg (2) drives the telescopic leg (5) to extend out of the telescopic hole (201) in the supporting leg (2), and abuts against the working surface, cooperating with the other telescopic leg (5), so that the pull rod (3) and the standard block (4) are finally kept vertical; Step 3: A limit assembly is provided on the adjustment mechanism to adjust the telescopic leg (5) to extend out of the telescopic hole (201) to a preset length; the telescopic leg (5) is limited by the limit assembly; Step 4: The standard block (4) is peeled off from the working surface by the pulling rod (3), and the corresponding pressure reading is displayed by the tension sensor (13).

2. The bonding strength detection method for uneven working surfaces according to claim 1, characterized in that: The driving mechanism comprises a driving rod (7), the lower end of the driving rod (7) is fixedly connected to the adjusting screw (6), a sliding hole (202) penetrating to the telescopic hole (201) is provided on the supporting leg (2), the upper end of the driving rod passes through the sliding hole (202) and is fixedly connected to a hand-tightening cap (8); a limiting groove (203) penetrating the sliding hole (202) is provided on the supporting leg (2) at a middle position of the sliding hole (202), a limiting ring (9) is arranged in the limiting groove (203), the limiting ring (9) is sleeved on the driving rod (7) and fixedly connected to the driving rod (7), and the limiting ring (9) is connected to the limiting assembly.

3. The bonding strength detection method for uneven working surfaces according to claim 2, characterized in that: The support leg (2) is provided with a control hole (205) and a limiting slide groove (204) communicating with the control hole (205), and the limiting slide groove (204) is arranged to pass through the limiting groove (203); The limiting assembly comprises a limiting plate (10) slidably connected in the limiting slide groove (204); a plurality of clamping grooves (901) are formed in an annular direction on the outer wall of the limiting ring (9); a plurality of clamping blocks (11) adapted to the clamping grooves (901) are provided on a side of the limiting plate (10) close to the limiting ring (9); a rotating hole (101) is formed in the middle of the limiting plate (10); a T-shaped rotating block (12) is rotatably connected in the rotating hole (101); a thinner end of the T-shaped rotating block (12) passes through the rotating hole (101) and is connected to a control rod (13); and the other end of the control rod (13) passes through the control hole (205); A plurality of positioning grooves (206) are formed in a circumferential direction along the control hole (205) on the support leg (2); the positioning grooves (206) are connected to the control hole (205) and communicated with the limit slide groove (204); and a positioning block (14) adapted to the positioning grooves (206) is provided on the outer wall of the control rod (13).

4. The bonding strength detection method for uneven working surfaces according to claim 3, characterized in that: One end of the control rod (13) away from the limiting plate (10) is fixedly connected to a control cap (15), and the outer wall of the control cap (15) is provided with a plurality of anti-slip grooves (102).

5. The bonding strength detection method for uneven working surfaces according to claim 3, characterized in that: The four corners of the limiting plate (10) on one side close to the control rod (13) are fixedly connected with contraction springs (16), and the other ends of the four contraction springs (16) are fixedly connected to the inner wall of the limiting sliding groove (204).

6. The bonding strength detection method for uneven working surfaces according to claim 1, characterized in that: Anti-slip grooves (207) are provided on both inner walls of the telescopic hole (201), and anti-slip blocks (17) are fixedly connected to both sides of the telescopic leg (5) at one end close to the positioning plate (1), and the anti-slip blocks (17) are slidably connected in the anti-slip grooves (207).

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