Adhesive bonding fatigue strength tool

Abstract

The utility model discloses an adhesive bonding fatigue strength tool, relates to the technical field of fatigue strength testing, and aims to solve the problems that the current fatigue strength testing tool is mostly used for testing the adhesive bonding fatigue strength of two workpieces with planes and cannot be used for testing the adhesive bonding fatigue strength of embedded workpieces; the device comprises a pressure-bearing detection mechanism, a pressure applying mechanism arranged on the top of the pressure-bearing detection mechanism and a back plate fixedly installed on the back of the pressure-bearing detection mechanism and the back of the pressure applying mechanism, and the pressure-bearing detection mechanism comprises a base and a sliding table slidably arranged on the top of the pressure-bearing detection mechanism; the two sides of the top end of the sliding table are centrally provided with reset mechanisms, and a floating plate is arranged on the two reset mechanisms in a sliding mode, the fatigue strength test is carried out in a pressure applying mode, the fatigue strength test of an adhesive for embedded workpieces can be completed, and pressure is stably applied to the workpieces.

Description

Technical Field

[0001] The utility model relates to the technical field of fatigue strength testing, and more specifically, to a fixture for adhesive bonding fatigue strength. Background Art

[0002] An adhesive, also known as a glue or binder, is a material that can bond two objects together. Different adhesives are used according to the characteristics of the materials to be bonded (mainly surface characteristics such as roughness). An adhesive is actually a diluted resin, and the resin itself has viscosity. However, some glue components are PVA, water, and preservatives.

[0003] Currently, when testing the bonding fatigue strength of adhesives, mainly two workpieces with flat surfaces are used to apply the adhesive. After application, the two are bonded together, and opposite-direction pulling forces are applied to them respectively through a fatigue strength testing fixture.

[0004] However, the existing fatigue strength testing fixtures are mostly used for testing the bonding fatigue strength of adhesives on two workpieces with flat surfaces, and cannot test the bonding fatigue strength of adhesives on fitted workpieces. When testing, the pulling method cannot stably apply a pulling force to the workpieces. In view of this, we propose a fixture for adhesive bonding fatigue strength. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide a fixture for adhesive bonding fatigue strength, so as to solve the technical problems that the current fatigue strength testing fixtures are mostly used for testing the bonding fatigue strength of adhesives on two workpieces with flat surfaces, cannot test the bonding fatigue strength of adhesives on fitted workpieces, and cannot stably apply a pulling force to the workpieces through pulling.

[0006] To solve the above technical problems, the utility model provides the following technical solution: A fixture for adhesive bonding fatigue strength, including a pressure-bearing detection mechanism, a pressure-applying mechanism arranged on the top of the pressure-bearing detection mechanism, and a back plate fixedly installed on the backs of the pressure-bearing detection mechanism and the pressure-applying mechanism;

[0007] The pressure-bearing detection mechanism includes a base and a sliding table slidably arranged on the top of the pressure-bearing detection mechanism. On both sides of the top of the sliding table, a reset mechanism is centrally arranged, and a floating plate is slidably arranged on the two reset mechanisms. A circular groove is centrally opened at the top of the floating plate, and a top seat is fixedly installed at the center of the top of the sliding table, and the top seat passes through the circular groove. An installation groove is centrally opened at the top of the top seat, and a pressure gauge probe is fixedly arranged in the installation groove;

[0008] The pressing mechanism includes a bracket and a hydraulic cylinder disposed at the center of the top of the bracket. The piston rod of the hydraulic cylinder passes through one end of the bracket and is fixedly installed with a C-shaped pressing seat, and a lower pressing die for cooperating with the floating plate to press the fitting workpiece is fixedly installed at the center of the bottom end of the C-shaped pressing seat.

[0009] The utility model tests the fatigue strength of the fitting workpiece bonded by the adhesive through the top seat and the lower pressing die. During the test, the fitting workpiece bonded by the adhesive is placed on the top of the floating plate, and the pressure gauge probe disposed in the top seat is abutted against the bottom of the workpiece. The C-shaped pressing seat is pushed down by the hydraulic cylinder, and the lower pressing die disposed on the C-shaped pressing seat abuts against the outer workpiece in the fitting workpiece, and cooperates with the top seat to abut against the inner workpiece in the fitting workpiece. The pressure detection is carried out through the hydraulic cylinder pressure application and the pressure gauge probe, so as to complete the fatigue strength test of the adhesive of the fitting workpiece and stably apply pressure to the workpiece.

[0010] Preferably, a linear module is centrally disposed at the top end of the base, and the linear module is fixedly connected to the sliding table.

[0011] Preferably, guide rails A are fixedly installed on both sides of the top end of the base, and two sliding seats A are slidably disposed on each of the two guide rails A. The two sliding seats A are fixedly installed on one side of the bottom of the sliding table.

[0012] Preferably, switch buttons are fixedly installed on both sides of the base, and the two switch buttons are respectively connected to the linear module and the hydraulic cylinder.

[0013] Preferably, the reset mechanism includes a guide rod. The guide rod is centrally fixedly installed on one side of the top of the sliding table, and the floating plate is slidably disposed on the guide rod. A spring abutting against the sliding table and the floating plate is sleeved on the guide rod.

[0014] Preferably, guide rails B are fixedly installed on both sides inside the bracket, and sliding seats B are slidably disposed on the guide rails B. The sliding seats B are fixedly installed on one side of the C-shaped pressing seat.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model tests the fatigue strength of the fitting workpieces bonded by adhesives through the cooperation of the top seat and the downward pressing die. During the test, the fitting workpieces bonded by adhesives are placed on the top of the floating plate, and the pressure gauge probe arranged in the top seat is made to abut against the bottom of the workpiece. Then, the C-shaped pressing seat is pushed down by the hydraulic cylinder, and the downward pressing die arranged on the C-shaped pressing seat abuts against the outer workpiece in the fitting workpieces, and cooperates with the top seat to abut against the inner workpiece in the fitting workpieces. Pressure detection is carried out through the pressure application of the hydraulic cylinder and the cooperation of the pressure gauge probe, so as to complete the fatigue strength test of the adhesives for the fitting workpieces and stably apply pressure to the workpieces.

[0017] 2. The utility model also places the fitting workpieces on the top of the floating plate, and the slide table provided with two or four slide seats A is pushed by the linear module to move below the downward pressing die, which is convenient for taking out the workpieces and avoids the problem that the workpieces are inconvenient to take after fatigue testing. Brief Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the utility model;

[0019] Figure 2 is the structural schematic diagram of the pressure-bearing detection mechanism in the utility model;

[0020] Figure 3 is the structural schematic diagram of the pressure application mechanism in the utility model;

[0021] Figure 4 is the structural schematic diagram of the utility model in the state of testing the bonding fatigue strength of the fitting workpieces.

[0022] Description of the reference numerals in the drawings:

[0023] 1. Pressure-bearing detection mechanism; 101. Base; 102. Slide table; 103. Floating plate; 104. Circular groove; 105. Top seat; 106. Pressure gauge probe; 107. Linear module; 108. Guide rail A; 109. Slide seat A; 110. Switch button; 111. Guide rod; 112. Spring; 2. Pressure application mechanism; 201. Bracket; 202. Hydraulic cylinder; 203. C-shaped pressing seat; 204. Downward pressing die; 205. Guide rail B; 206. Slide seat B; 3. Back plate. Detailed Embodiment

[0024] As Figure 1 shown, a bonding fatigue strength tooling for adhesives related to the utility model includes a pressure-bearing detection mechanism 1, a pressure application mechanism 2 arranged on the top of the pressure-bearing detection mechanism 1, and a back plate 3 fixedly installed on the backs of the pressure-bearing detection mechanism 1 and the pressure application mechanism 2;

[0025] As Figure 1 、 Figure 2 、 Figure 3As shown, in the embodiment of the present utility model, in order to complete the adhesive fatigue strength test for the fitting type workpiece and apply pressure to the workpiece stably, the pressure-bearing detection mechanism 1 includes a base 101 and a sliding table 102 slidably disposed on the top of the pressure-bearing detection mechanism 1. On both sides of the top end of the sliding table 102, a reset mechanism is centrally arranged, and a floating plate 103 is slidably arranged on the two reset mechanisms together. A circular groove 104 is centrally opened at the top end of the floating plate 103. A top seat 105 is fixedly installed at the center of the top end of the sliding table 102, and the top seat 105 passes through the circular groove 104. An installation groove is opened at the center of the top end of the top seat 105, and a pressure gauge probe 106 is fixedly arranged in the installation groove. The pressure application mechanism 2 includes a bracket 201 and a hydraulic cylinder 202 arranged at the center of the top of the bracket 201. The piston rod of the hydraulic cylinder 202 passes through one end of the bracket 201 and is fixedly installed with a C-shaped pressure seat 203, and a lower pressing die 204 for cooperating with the floating plate 103 to press the fitting type workpiece is fixedly installed at the center of the bottom end of the C-shaped pressure seat 203. The fatigue strength test of the fitting type workpiece bonded by the adhesive is carried out by the cooperation of the top seat 105 and the lower pressing die 204. During the test, the fitting type workpiece bonded by the adhesive is placed on the top of the floating plate 103, and the pressure gauge probe 106 arranged in the top seat 105 is abutted against the bottom of the workpiece. The C-shaped pressure seat 203 is pushed down by the hydraulic cylinder 202, and the lower pressing die 204 arranged on the C-shaped pressure seat 203 abuts against the workpiece located on the outside in the fitting type workpiece, and cooperates with the top seat 105 to abut against the workpiece located on the inside in the fitting type workpiece. The pressure detection is carried out by the pressure application of the hydraulic cylinder 202 in cooperation with the pressure gauge probe 106, so as to complete the adhesive fatigue strength test for the fitting type workpiece and apply pressure to the workpiece stably.

[0026] As Figure 1 , Figure 2 , Figure 3As shown, in the embodiment of the present utility model, to facilitate the removal of the workpiece and avoid the problem of inconvenient handling of the workpiece after fatigue testing, a linear module 107 is centrally arranged at the top end of the base 101, and the linear module 107 is fixedly connected to the slide table 102. Guide rails A108 are fixedly installed on both sides of the top end of the base 101, and two slide seats A109 are slidably arranged on each of the two guide rails A108. The two slide seats A109 are fixedly installed on one side of the bottom of the slide table 102. Switch buttons 110 are fixedly installed on both sides of the base 101, and the two switch buttons 110 are respectively connected to the linear module 107 and the hydraulic cylinder 202. Guide rails B205 are fixedly installed on both sides inside the bracket 201, and a slide seat B206 is slidably arranged on the guide rail B205. The slide seat B206 is fixedly installed on one side of the C-shaped pressing seat 203. By placing the fitting-type workpiece on the top of the floating plate 103 and pushing the slide table 102 provided with two or four slide seats A109 to move below the lower pressing die 204 through the linear module 107, it is convenient to remove the workpiece and avoid the problem of inconvenient handling of the workpiece after fatigue testing.

[0027] As Figure 2 , Figure 3 , Figure 4 As shown, in the embodiment of the present utility model, to complete the reset of the floating plate 103, the reset mechanism includes a guide rod 111. The guide rod 111 is centrally and fixedly installed on one side of the top of the slide table 102, and the floating plate 103 is slidably arranged on the guide rod 111. A spring 112 that abuts against the slide table 102 and the floating plate 103 is sleeved on the guide rod 111. After the fatigue test of the fitting-type workpiece is completed, by removing the fitting-type workpiece, with the help of the two springs 112, the floating plate 103 can be pushed to move upward under the guidance of the guide rod 111, thereby completing the reset of the floating plate 103.

[0028] Working principle: This embodiment provides a fatigue strength tooling for adhesive bonding. When in use, place the fitting-type workpiece on the top of the floating plate 103, make the pressure gauge probe 106 arranged in the top seat 105 abut against the bottom of the workpiece, push the C-shaped pressing seat 203 to move downward through the hydraulic cylinder 202, and push the slide table 102 provided with two or four slide seats A109 to move below the lower pressing die 204 through the linear module 107, so that the lower pressing die 204 arranged on the C-shaped pressing seat 203 abuts against the workpiece located on the outside in the fitting-type workpiece, and cooperate with the top seat 105 to abut against the workpiece located on the inside in the fitting-type workpiece. Through the pressure applied by the hydraulic cylinder 202 and the cooperation of the pressure gauge probe 106 for pressure detection, the fatigue strength test of the adhesive for the fitting-type workpiece is completed, and pressure is stably applied to the workpiece.

[0029] The embodiments disclosed in the present utility model are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. An adhesive bonding fatigue strength tooling, characterized in that, It includes a pressure-bearing detection mechanism (1), a pressure-applying mechanism (2) provided at the top of the pressure-bearing detection mechanism (1), and a back plate (3) fixedly installed on the backs of the pressure-bearing detection mechanism (1) and the pressure-applying mechanism (2); The pressure-bearing detection mechanism (1) includes a base (101) and a sliding table (102) slidably provided at the top of the pressure-bearing detection mechanism (1). At both sides of the top end of the sliding table (102), reset mechanisms are centrally arranged, and a floating plate (103) is slidably arranged on the two reset mechanisms. A circular groove (104) is centrally opened at the top end of the floating plate (103). A top seat (105) is fixedly installed at the center of the top end of the sliding table (102), and the top seat (105) passes through the circular groove (104). An installation groove is opened at the center of the top end of the top seat (105), and a pressure gauge probe (106) is fixedly arranged in the installation groove; The pressure-applying mechanism (2) includes a bracket (201) and a hydraulic cylinder (202) provided at the center of the top of the bracket (201). The piston rod of the hydraulic cylinder (202) passes through one end of the bracket (201) and is fixedly installed with a C-shaped pressure seat (203), and a lower pressing die (204) for cooperating with the floating plate (103) to press the fitting workpiece is fixedly installed at the center of the bottom end of the C-shaped pressure seat (203).

2. The fatigue strength tooling for adhesive bonding according to claim 1, characterized in that, A linear module (107) is centrally arranged at the top end of the base (101), and the linear module (107) is fixedly connected to the sliding table (102).

3. A fixture for adhesive bonding fatigue strength according to claim 1, characterized in that, Guide rails A (108) are fixedly installed on both sides of the top end of the base (101), and two sliding seats A (109) are slidably arranged on each of the two guide rails A (108). The two sliding seats A (109) are fixedly installed on one side of the bottom of the sliding table (102).

4. A fatigue strength tooling for adhesive bonding according to claim 2, characterized in that, Switch buttons (110) are fixedly installed on both sides of the base (101), and the two switch buttons (110) are respectively connected to the linear module (107) and the hydraulic cylinder (202).

5. A fixture for the adhesive bonding fatigue strength according to claim 1, characterized in that, The reset mechanism includes a guide rod (111). The guide rod (111) is centrally fixedly installed on one side of the top of the sliding table (102), and the floating plate (103) is slidably arranged on the guide rod (111). A spring (112) abutting against the sliding table (102) and the floating plate (103) is sleeved on the guide rod (111).

6. The fatigue strength tooling for adhesive bonding according to claim 1, wherein Guide rails B (205) are fixedly installed on both sides inside the bracket (201), and sliding seats B (206) are slidably arranged on the guide rails B (205). The sliding seats B (206) are fixedly installed on one side of the C-shaped pressure seat (203).

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