Sealant performance testing device

Abstract

The utility model discloses a sealant performance testing device. The sealant performance testing device comprises a pressing machine, a plug box, a testing assembly and a limiting block, the pressing machine comprises a workbench and a punching head arranged above the workbench. The bottom of the inserting box is detachably connected with the workbench through a supporting rod. The test assembly comprises a first vertical plate and a second vertical plate; the right side wall of the second vertical plate is fixedly connected with a connecting transverse plate extending in the left-right direction. The right side wall of the lower end of the first vertical plate and the gluing area of the left side wall of the second vertical plate are suitable for being connected through to-be-tested sealant to form a test piece; the lower end of the test piece is suitable for being arranged in an inner cavity of the plug box, so that the upper end of the first vertical plate penetrates through the top wall of the plug box and extends out of the plug box, the second vertical plate is arranged in the plug box, and the right end of the connecting transverse plate penetrates through the right side wall of the plug box and extends out of the plug box to be detachably connected with the limiting block. According to the utility model, the bonding part of the test piece is arranged in the plugging box, so that the safety performance is improved, and workers are effectively protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sealant performance test, specifically relates to a sealant performance testing device. BACKGROUND

[0002] In the field of aerospace, aluminum alloy components are widely used in key parts such as fuselage, wing and fuel tank, and sealant is needed for sealing at the joint. Such sealant is generally a high polymer material. Therefore, in order to ensure safety, the performance of the sealant needs to be tested. There are many sealant performance test items for aerospace aluminum alloy, including sealant shear strength test. In the sealant shear strength test, the two aerospace aluminum alloy plates are first bonded with the sealant to be tested, and then an external force is applied to evaluate the load capacity of the glue under stress.

[0003] The two pieces of aerospace aluminum alloy in the bonded state will form tension between the two pieces of aerospace aluminum alloy plate due to the different areas of the fuselage part and the different friction with the air during the flight of the aircraft, that is, the different reaction forces generated at different positions. The sealant shear strength test is to test the load capacity of the glue under such tension.

[0004] The existing sealant performance testing device is mostly open structure, that is, the two pieces of aerospace aluminum alloy plate are directly exposed. During the test, the two pieces of aerospace aluminum alloy plate will often splatter due to the fracture of the bonding part. The splattered aerospace aluminum alloy plate or sealant has certain safety hazards and is easy to injure workers and pollute the environment.

[0005] In addition, the temperature difference faced by the aircraft during the take-off stage and high-altitude flight stage is large, and the temperature will also affect the performance of the sealant. The existing sealant performance testing device is of open structure and cannot simulate the test scene under different temperatures.

[0006] In addition, in the existing sealant shear strength test, the two pieces of aerospace aluminum alloy are tested in a static state. However, the vibration of the fuselage caused by the operation of the engine, the friction between the fuselage and the air, the flight of the fuselage in the cloud layer and other conditions will cause the periodic stress produced by the vibration to repeatedly stretch and compress the molecular chain of the sealant, resulting in fatigue damage, causing the molecular chain to break and reducing the overall bonding strength. The existing sealant performance testing device can only simulate the test scene in a static state and cannot simulate the test scene in a vibration state.

[0007] In summary, the existing sealant performance testing device is mostly of open structure, has low safety performance, cannot simulate the test scene under different temperatures, and cannot simulate the test scene in a vibration state. UTILITY MODEL CONTENT

[0008] The utility model provides a sealant performance testing device to solve the technical problem is: sealant performance testing device is open type structure more, and the security performance is lower.

[0009] The utility model discloses a sealant performance testing device, including press, plug -in box, test subassembly and limit block,

[0010] The press includes a workbench and a punch head arranged above the workbench, and a pressure sensor is arranged at the lower end of the punch head.

[0011] The plug-in box is a hollow cavity structure, which is suitable to be arranged between the workbench and the punch head and detachably connected with the workbench. The bottom of the plug-in box is detachably connected with the workbench through a supporting rod.

[0012] The test subassembly includes a first vertical plate and a second vertical plate. The right side wall of the second vertical plate is fixedly connected with a connecting horizontal plate extending in the left-right direction. The right side wall of the lower end of the first vertical plate and the glue coating area of the left side wall of the second vertical plate are suitable to be connected with the sealant to be tested to form a test piece.

[0013] The lower end of the test piece is suitable to be arranged in the inner cavity of the plug-in box, so that the upper end of the first vertical plate of the test piece is arranged in the top wall of the plug-in box and extends out of the plug-in box, and the second vertical plate of the test piece is arranged in the plug-in box, and the right end of the connecting horizontal plate is arranged in the right side wall of the plug-in box and extends out of the plug-in box.

[0014] The lower end of the punch head is suitable to apply downward pressure to the upper end surface of the test piece.

[0015] The limit block is suitable to be arranged outside the plug-in box and detachably connected with the right end of the connecting horizontal plate when the lower end of the test piece is arranged in the inner cavity of the plug-in box, so as to limit the test piece in the left-right direction. Through the cooperation of the plug-in box and the test piece, the bonding part of the test piece is arranged in the plug-in box, which improves the safety performance and effectively protects the workers.

[0016] Further, a through hole is horizontally arranged at the upper end of the first vertical plate, and a metal column is arranged in the inner cavity of the through hole.

[0017] The top of the metal column is connected with the top wall of the through hole through an elastic steel sheet, and the bottom of the metal column is arranged in the bottom wall of the through hole. By adopting the above scheme, the test scene under the vibration state can be simulated.

[0018] Further, an installation groove is arranged at the left end of the limit block, and the right end of the connecting horizontal plate is suitable to be arranged in the installation groove and detachably connected with the limit block through bolts.

[0019] Further, the plug-in box comprises a box body and a cover plate;

[0020] The box body is a hollow cavity with an open upper end, and a first through hole and a vertical sliding slot are formed in the right side wall of the box body; the first through hole is adapted to pass through the connecting horizontal plate and limit the connecting horizontal plate in the front-rear direction; the lower end of the vertical sliding slot is in communication with the upper end of the first through hole, and the upper end extends upward to the top of the box body;

[0021] The cover plate is adapted to cover the open upper end of the box body; a second through hole is formed in the cover plate to pass through the upper end of the first vertical plate; a limiting vertical plate is detachably and slidably connected in the vertical sliding slot;

[0022] The limiting vertical plate is adapted to abut against the bottom of the cover plate at the top and abut against the top of the connecting horizontal plate at the bottom when the lower end of the test piece is placed in the inner cavity of the plug-in box. The above scheme effectively limits the test piece and improves safety performance.

[0023] Further, a horizontal sliding slot is formed in the cover plate, the horizontal sliding slot extends in the front-rear direction, one end of the horizontal sliding slot is in communication with the second through hole, and the other end extends to the side wall of the cover plate; a limiting horizontal plate is detachably and slidably connected in the horizontal sliding slot. The above scheme limits the first vertical plate.

[0024] Further, the bottom of the cover plate is provided with a matching protrusion matched with the open upper end of the box body.

[0025] Further, the glue application area of the left side wall of the second vertical plate is located in the middle upper part of the second vertical plate;

[0026] The second vertical plate is adapted to be spaced apart from the top of the inner cavity of the plug-in box at the top and spaced apart from the bottom of the inner cavity of the plug-in box at the bottom when the lower end of the test piece is placed in the inner cavity of the plug-in box.

[0027] Further, the sealing glue performance testing device further comprises a temperature regulating pipe, the temperature regulating pipe is fixedly connected with the plug-in box, and the gas outlet end of the temperature regulating pipe is in communication with the inner cavity of the plug-in box;

[0028] The temperature regulating pipe is adapted to inject gas into the inner cavity of the plug-in box to adjust the temperature of the inner cavity of the plug-in box. The above scheme can simulate test scenarios at different temperatures.

[0029] Further, the temperature regulating pipe comprises a gas guide pipe and a shunt pipe;

[0030] The gas inlet end of the gas guide pipe is adapted to be in communication with the gas supply pipeline;

[0031] The two shunt pipes are symmetrically arranged on the left and right sides of the plug-in box, the air inlet ends of the two shunt pipes are connected with the air outlet ends of the air guide pipes respectively, and the air outlet ends of the two shunt pipes are arranged in the left and right side walls of the plug-in box.

[0032] Compared with the prior art, the utility model has the following beneficial effects:

[0033] Through the cooperation of the plug-in box and the test piece, the adhesion of the test piece is arranged in the plug-in box, the safety performance is improved, and the staff is effectively protected.

[0034] Through the cooperation of the box body and the cover plate, the test piece is effectively limited, so that the first vertical plate, the second vertical plate and the sealant to be tested are prevented from splashing out of the plug-in box when the adhesion of the test piece is broken, and the safety performance is improved.

[0035] The metal column and the elastic steel sheet are arranged on the first vertical plate to simulate the test scene under the vibration state.

[0036] The gas is injected into the inner cavity of the plug-in box through the temperature regulating pipe to simulate the test scene under different temperatures.

[0037] The above description of the present disclosure and the following description of the embodiments are used to demonstrate and explain the spirit and principles of the utility model, and provide further explanation of the patent application scope of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0038] The specific embodiments of the utility model will be further described in detail below with reference to the drawings.

[0039] Figure 1 It is a schematic view of the sealant performance testing device in the utility model;

[0040] Figure 2 It is a schematic view of the local structure of the sealant performance testing device in the utility model;

[0041] Figure 3 It is a schematic view of the local section of the test piece and the plug-in box in the utility model;

[0042] Figure 4 It is an explosion schematic view of the sealant performance testing device in the utility model;

[0043] Figure 5 It is an explosion schematic view of the test piece and the limiting block in the utility model;

[0044] Figure 6 It is a top view of the local structure of the sealant performance testing device in the utility model.

[0045] BRIEF DESCRIPTION OF DRAWINGS

[0046] 1, press; 11, workbench; 12, punch head; 13, pressure sensor; 14, digital display; 2, plug-in box; 21, box body; 211, first via hole; 212, vertical sliding slot; 22, cover plate; 221, second via hole; 222, horizontal sliding slot; 223, matching protrusion; 23, limiting vertical plate; 24, limiting horizontal plate; 31, first vertical plate; 311, through hole; 312, metal column; 313, elastic steel sheet; 32, second vertical plate; 33, connecting horizontal plate; 3a, test piece; 4, limiting block; 41, mounting groove; 5, bolt; 6, temperature regulating tube; 61, air guide tube; 62, shunt tube; 7, support rod; 8, sealant to be measured. DETAILED DESCRIPTION

[0047] The specific embodiments below illustrate the implementation of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification. Although the description of the present application will be introduced in combination with the preferred embodiments, this does not mean that the features of the present application are limited to this embodiment. On the contrary, the purpose of introducing the present application in combination with the embodiment is to cover other options or modifications that can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0048] In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0049] The terms "first", "second", and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0050] In the description of the present embodiment, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "provided with", "provided", "connected", "connected" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.

[0051] The present application discloses a sealant performance testing device. In the present embodiment, the sealant performance testing device is applied in the field of aerospace, and is used for testing the performance of sealant for aerospace aluminum alloy.

[0052] Please refer to Figures 1-3 As shown in the figure, the sealant performance testing device comprises a press 1, a plug-in box 2, a test assembly and a limiting block 4.

[0053] The press 1 comprises a workbench 11 and a stamping head 12 arranged above the workbench 11. The lower end of the stamping head 12 is provided with a pressure sensor 13. In the present embodiment, the press 1 is a hydraulic press, and the stamping head 12 is connected with the press 1 through a hydraulic oil cylinder. The hydraulic oil cylinder is suitable for driving the stamping head 12 to ascend and descend. The pressure sensor 13 comprises but is not limited to a spoke type pressure sensor. The pressure sensor 13 is arranged at the lower end face of the stamping head 12.

[0054] The plug-in box 2 is a hollow cavity structure. The plug-in box 2 is suitable to be placed between the workbench 11 and the stamping head 12, and is detachably connected with the workbench 11. In the present embodiment, please refer to Figure 1 As shown in the figure, the bottom of the plug-in box 2 is detachably connected with the workbench 11 through a supporting rod 7. Preferably, the supporting rod 7 and the workbench 11 can be connected through bolts.

[0055] The test assembly comprises a first vertical plate 31, a second vertical plate 32 and a connecting horizontal plate 33. The right side wall of the second vertical plate 32 is fixedly connected with the connecting horizontal plate 33, and the connecting horizontal plate 33 extends along the left-right direction. The lower end right side wall of the first vertical plate 31 is provided with a glue applying area. The left side wall of the second vertical plate 32 is provided with a glue applying area in the upper part. The glue applying area of the first vertical plate 31 and the glue applying area of the second vertical plate 32 are suitable to be connected through the sealant 8 to be tested, so as to constitute a test piece 3a. In the present embodiment, as shown in Figure 4 、 Figure 5 As shown in the figure, the test piece 3a is composed of the first vertical plate 31, the second vertical plate 32, the connecting horizontal plate 33 and the sealant 8 to be tested.

[0056] The lower end of the test piece 3a is suitable to be placed in the inner cavity of the plug-in box 2. Specifically, please refer to Figures 2-3As shown in the figure, when the lower end of the test piece 3a is placed in the inner cavity of the adapter box 2, the lower end of the first vertical plate 31 of the test piece 3a is placed in the adapter box 2, and the upper end of the first vertical plate 31 of the test piece 3a penetrates the top wall of the adapter box 2 and extends out of the adapter box 2; the second vertical plate 32 of the test piece 3a is placed in the adapter box 2, and the top of the second vertical plate 32 is spaced apart from the top of the inner cavity of the adapter box 2, and the bottom of the second vertical plate 32 is spaced apart from the bottom of the inner cavity of the adapter box 2; the right end of the connecting horizontal plate 33 of the test piece 3a penetrates the right side wall of the adapter box 2 and extends out of the adapter box 2.

[0057] When the lower end of the test piece 3a is placed in the inner cavity of the adapter box 2, the limiting block 4 is adapted to be placed outside the adapter box 2 and detachably connected with the right end of the connecting horizontal plate 33. In this embodiment, the top of the limiting block 4 is located below the top of the connecting horizontal plate 33.

[0058] The limiting block 4 is used to limit the test piece 3a in the left-right direction. After the test piece 3a is assembled with the adapter box 2, the test piece 3a is placed below the stamping head 12, and the lower end of the stamping head 12 is adapted to exert a downward pressure on the upper end surface of the test piece 3a to test the shear strength of the sealant 8 to be tested.

[0059] In this embodiment, please refer to Figure 1 As shown in the figure, the press 1 further comprises a digital display meter 14. The digital display meter 14 is arranged on the top of the press 1 and connected with the pressure sensor 13 through a cable, and is used to display the pressure value exerted by the stamping head 12 on the test piece 3a.

[0060] In this embodiment, please refer to Figures 2-4 As shown in the figure, the adapter box 2 comprises a box body 21 and a cover plate 22. Specifically, the box body 21 is a hollow cavity with an open upper end. The right side wall of the box body 21 is provided with a first through hole 211 and a vertical sliding groove 212. The first through hole 211 is adapted to allow the connecting horizontal plate 33 to penetrate and limit the connecting horizontal plate 33 in the front-back direction. The lower end of the vertical sliding groove 212 is connected with the upper end of the first through hole 211, and the upper end of the vertical sliding groove 212 extends upward to the top of the box body 21. The cover plate 22 is adapted to cover the open upper end of the box body 21. The cover plate 22 is provided with a second through hole 221 for the upper end of the first vertical plate 31 to penetrate. The vertical sliding groove 212 is detachably and slidably connected with a limiting vertical plate 23. When the lower end of the test piece 3a is placed in the inner cavity of the adapter box 2, the top of the limiting vertical plate 23 abuts against the bottom of the cover plate 22, and the bottom of the limiting vertical plate 23 abuts against the top of the connecting horizontal plate 33.

[0061] Further, the cover plate 22 is provided with a horizontal sliding groove 222. The horizontal sliding groove 222 extends in the front-back direction, and the front end of the horizontal sliding groove 222 communicates with the second through hole 221, and the other end extends to the side wall of the cover plate 22. The horizontal sliding groove 222 is detachably and slidably connected with a limiting horizontal plate 24.

[0062] Further, please refer to Figure 3 As shown in the figure, the bottom of the cover plate 22 is provided with a matching protrusion 223 matched with the upper end opening of the box body 21. Specifically, the cover plate 22 is detachably connected with the upper end opening of the box body 21 through the matching protrusion 223.

[0063] In this embodiment, please refer to Figure 4 and Figure 5 As shown in the figure, the left end top of the limiting block 4 is provided with a mounting groove 41. The left end of the mounting groove 41 is an open end, and the right end of the mounting groove 41 is a sealed end. The right end of the connecting horizontal plate 33 is adapted to be placed in the mounting groove 41 and is detachably connected with the limiting block 4 through the bolt 5. The size of the limiting block 4 in the front-rear direction is greater than the size of the second through hole 221 in the front-rear direction.

[0064] Further, in order to simulate the performance of the sealant 8 to be tested under the vibration working condition of the fuselage of the aircraft, please refer to Figures 4-5 As shown in the figure, the upper end of the first vertical plate 31 is horizontally provided with a through hole 311. The inner cavity of the through hole 311 is horizontally provided with a metal column 312. The top of the metal column 312 is connected with the top wall of the through hole 311 through an elastic steel sheet 313. The bottom of the metal column 312 is spaced apart from the bottom wall of the through hole 311.

[0065] In this embodiment, the through hole 311 is a rectangular through hole, which penetrates the first vertical plate 31 along the left-right direction. The axis of the metal column 312 extends along the front-rear direction. When the lower end of the test piece 3a is placed in the inner cavity of the plug-in box 2, the metal column 312 is exposed outside the plug-in box 2. The worker can move the metal column 312, so that the elastic steel sheet 313 will vibrate, thereby driving the test piece 3a to vibrate, thereby simulating the vibration of the fuselage of the aircraft.

[0066] Further, in order to simulate the performance of the sealant 8 to be tested under different temperatures of the fuselage of the aircraft, please refer to Figure 4 and Figure 6 As shown in the figure, the sealant performance testing device further comprises a temperature adjusting pipe 6. The temperature adjusting pipe 6 is fixedly connected with the plug-in box 2. The gas outlet end of the temperature adjusting pipe 6 is communicated with the inner cavity of the plug-in box 2. The temperature adjusting pipe 6 is adapted to inject gas into the inner cavity of the plug-in box 2 to adjust the temperature of the inner cavity of the plug-in box 2.

[0067] Specifically, the temperature adjusting pipe 6 comprises a gas guide pipe 61 and a shunt pipe 62. The gas inlet end of the gas guide pipe 61 is adapted to be communicated with the gas supply pipeline. The shunt pipe 62 is two and is symmetrically distributed on the left and right sides of the box body 21. The gas inlet ends of the two shunt pipes 62 are respectively connected with the gas outlet ends of the gas guide pipe 61. The gas outlet ends of the two shunt pipes 62 are respectively provided in the left and right side walls of the box body 21. The temperature adjusting pipe 6 adjusts the temperature of the inner cavity of the box body 21 by injecting gas of different temperatures into the inner cavity of the box body 21. The gas injected by the temperature adjusting pipe 6 includes but is not limited to air.

[0068] In this embodiment, the outlet end of the diversion pipe 62 is provided with multiple air outlets, which are distributed at intervals along the vertical direction. Preferably, the outlet end of the diversion pipe 62 is provided with five air outlets, and the positions of the air outlets of the diversion pipe 62 are positioned opposite to the positions of the adhesive joints in the test piece 3a.

[0069] In this embodiment, a temperature sensor (not shown in the figure) is provided on the side wall of the inner cavity of the connector box 2. This temperature sensor is used to detect the temperature of the inner cavity of the box body 21. The digital display device of the temperature sensor is placed outside the connector box 2 so that the operator can more intuitively understand the temperature of the inner cavity of the connector box 2. Preferably, the temperature sensor is located on the left side wall of the box body 21. The temperature sensor is connected to the corresponding digital display device, and the connection method between the two includes, but is not limited to, Bluetooth connection, Wi-Fi connection, etc.

[0070] Furthermore, there is a clearance fit between the upper end of the first vertical plate 31 and the second through hole 221. When the temperature regulating pipe 6 injects gas into the inner cavity of the plug box 2, the pressure of the plug box 2 will increase as the amount of gas increases. At this time, some of the gas inside the plug box 2 can be discharged to the outside of the plug box 2 through the second through hole 221 to relieve pressure on the plug box 2, thereby preventing the plug box 2 from expanding or even exploding and improving safety performance.

[0071] In this embodiment, the specific steps for testing the sealant performance are as follows:

[0072] Marking the glue application area: According to the test requirements, use a surveying tool to mark the lower right side wall of the first vertical plate 31 to draw the glue application area of ​​the first vertical plate 31; use a surveying tool to mark the upper middle part of the left side wall of the second vertical plate 32 to draw the glue application area of ​​the second vertical plate 32.

[0073] Adhesive bonding: The adhesive application area of ​​the first vertical plate 31 and the adhesive application area of ​​the second vertical plate 32 are bonded together using the sealant 8 to be tested, so as to obtain the test piece 3a.

[0074] Assembly and Fixing: Place the lower end of test piece 3a into the inner cavity of box 21, then install the limiting vertical plate 23 in the vertical slide groove 212, then cover the box 21 with the cover plate 22, and finally install the limiting horizontal plate 24 in the horizontal slide groove 222. At this time, the lower end of the first vertical plate 31 of test piece 3a is placed inside box 21, and the upper end of the first vertical plate 31 of test piece 3a passes through the top wall of the plug-in box 2 and extends to the outside of the plug-in box 2; the second vertical plate 32 of test piece 3a is placed inside the plug-in box 2, with the top of the second vertical plate 32 spaced apart from the top of the inner cavity of the plug-in box 2, and the bottom of the second vertical plate 32 spaced apart from the bottom of the inner cavity of the plug-in box 2; the right end of the connecting horizontal plate 33 of test piece 3a passes through the right side wall of the plug-in box 2 and extends to the outside of the plug-in box 2; the limiting block 4 is placed outside the plug-in box 2 and is detachably connected to the right end of the connecting horizontal plate 33.

[0075] Punch test: downward pressure is applied to the upper end face of the first vertical plate 31 through the lower end of the punch head 12 to separate the first vertical plate 31 from the second vertical plate 32. The worker can learn the load-carrying capacity of the sealant 8 under stress from the digital display table 14.

[0076] In the above embodiment, a temperature control step can be added between the assembly fixing step and the punch test step to simulate a test scene at different temperatures. Specifically, after the assembly fixing step is completed, the temperature control step is performed. The temperature control step is to inject gas into the inner cavity of the box body 21 through the temperature control pipe 6 until the temperature of the inner cavity of the box body 21 reaches the test temperature. Then the punch test step is performed.

[0077] In the above embodiment, a vibration simulation step can be added between the assembly fixing step and the punch test step to simulate a test scene under vibration. Specifically, after the assembly fixing step is completed, the vibration simulation step is performed. The vibration simulation step is to deform the elastic steel sheet 313 by moving the metal column 312, and then release the metal column 312, at which time the elastic steel sheet 313 vibrates, thereby causing the test piece 3a to vibrate. Then the punch test step is performed.

[0078] In the vibration simulation step, the metal column 312 can be moved to a specified position and then released to ensure that the vibration of the test piece 3a in the same batch test is the same.

[0079] In summary, the utility model discloses a test piece is placed in the plug-in box through the cooperation of the plug-in box and the test piece, which improves the safety performance and effectively protects the worker. The test piece is effectively limited by the cooperation of the box body and the cover plate to prevent the first vertical plate, the second vertical plate and the sealant under test from splashing out of the plug-in box when the adhesive of the test piece breaks, thereby improving the safety performance. The metal column and the elastic steel sheet are arranged on the first vertical plate to simulate a test scene under vibration. The temperature control pipe injects gas into the inner cavity of the plug-in box to simulate a test scene at different temperatures.

[0080] The above embodiment is only illustrative of the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A sealant performance testing apparatus, characterized by, The pressure machine (1), the plug-in box (2), the test assembly and the limiting block (4) are included. The pressure machine (1) includes a workbench (11) and a stamping head (12) arranged above the workbench (11); the lower end of the stamping head (12) is provided with a pressure sensor (13); The plug-in box (2) is a hollow cavity structure, which is suitable to be arranged between the workbench (11) and the stamping head (12) and detachably connected with the workbench (11); the bottom of the plug-in box (2) is detachably connected with the workbench (11) through a supporting rod (7); The test assembly includes a first vertical plate (31) and a second vertical plate (32); the right side wall of the second vertical plate (32) is fixedly connected with a connecting horizontal plate (33) extending in the left-right direction; the right side wall of the lower end of the first vertical plate (31) is suitable to be connected with the glue coating area of the left side wall of the second vertical plate (32) through the sealant (8) to be tested, so as to form a test piece (3a); The lower end of the test piece (3a) is suitable to be arranged in the inner cavity of the plug-in box (2), so that the upper end of the first vertical plate (31) of the test piece (3a) is arranged in the top wall of the plug-in box (2) and extends out of the plug-in box (2), so that the second vertical plate (32) of the test piece (3a) is arranged in the plug-in box (2) and the right end of the connecting horizontal plate (33) is arranged in the right side wall of the plug-in box (2) and extends out of the plug-in box (2); The lower end of the stamping head (12) is suitable to apply downward pressure to the upper end surface of the test piece (3a); The limiting block (4) is suitable to be arranged outside the plug-in box (2) and detachably connected with the right end of the connecting horizontal plate (33) when the lower end of the test piece (3a) is arranged in the inner cavity of the plug-in box (2), so as to limit the test piece (3a) in the left-right direction.

2. The sealant performance testing apparatus of claim 1, wherein, The upper end of the first vertical plate (31) is horizontally provided with a through hole (311), and the inner cavity of the through hole (311) is horizontally provided with a metal column (312); The top of the metal column (312) is connected with the top wall of the through hole (311) through an elastic steel sheet (313); and the bottom of the metal column (312) is arranged in the bottom wall of the through hole (311) in a spaced manner.

3. The sealant performance testing apparatus of claim 1, wherein The left end of the limiting block (4) is provided with a mounting groove (41), and the right end of the connecting horizontal plate (33) is suitable to be arranged in the mounting groove (41) and detachably connected with the limiting block (4) through a bolt (5).

4. The sealant performance testing apparatus of claim 1, wherein The plug-in box (2) includes a box body (21) and a cover plate (22); The box body (21) is a hollow cavity with an open upper end, and the right side wall of the box body (21) is provided with a first through hole (211) and a vertical sliding groove (212); the first through hole (211) is suitable for the connecting horizontal plate (33) to pass through and limit the connecting horizontal plate (33) in the front-rear direction; the lower end of the vertical sliding groove (212) is communicated with the upper end of the first through hole (211), and the upper end extends upward to the top of the box body (21); The cover plate (22) is adapted to cover the upper end opening of the box body (21); a second through hole (221) is formed in the cover plate (22) and adapted to allow the upper end of the first vertical plate (31) to pass through; and a limiting vertical plate (23) is detachably and slidably connected in the vertical sliding groove (212). The limiting vertical plate (23) is adapted to abut against the bottom of the cover plate (22) with its top when the lower end of the test piece (3a) is placed in the inner cavity of the plug-in box (2), and to abut against the top of the connecting horizontal plate (33) with its bottom.

5. The sealant performance testing apparatus of claim 4, wherein, A horizontal sliding groove (222) is formed in the cover plate (22) and extends in the front-rear direction, one end of the horizontal sliding groove (222) is connected with the second through hole (221), and the other end of the horizontal sliding groove (222) extends to the side wall of the cover plate (22); and a limiting horizontal plate (24) is detachably and slidably connected in the horizontal sliding groove (222).

6. The sealant performance testing apparatus of claim 4, wherein, The bottom of the cover plate (22) is provided with a matching protrusion (223) matched with the upper end opening of the box body (21).

7. The sealant performance testing apparatus of claim 1, wherein The glue application area of the left side wall of the second vertical plate (32) is located in the middle upper part of the second vertical plate (32); The second vertical plate (32) is adapted to be spaced apart from the top of the inner cavity of the plug-in box (2) with its top and from the bottom of the inner cavity of the plug-in box (2) with its bottom when the lower end of the test piece (3a) is placed in the inner cavity of the plug-in box (2).

8. The sealant performance testing apparatus of claim 1, wherein, A temperature adjusting pipe (6) is further included, the temperature adjusting pipe (6) is fixedly connected with the plug-in box (2), and the gas outlet end of the temperature adjusting pipe (6) is connected with the inner cavity of the plug-in box (2); The temperature adjusting pipe (6) is adapted to inject gas into the inner cavity of the plug-in box (2) to adjust the temperature of the inner cavity of the plug-in box (2).

9. The sealant performance testing apparatus of claim 8, wherein, The temperature adjusting pipe (6) comprises a gas guide pipe (61) and a shunt pipe (62); The gas inlet end of the gas guide pipe (61) is adapted to be connected with a gas supply pipeline; The shunt pipe (62) is two and symmetrically distributed on the left and right sides of the plug-in box (2); the gas inlet ends of the two shunt pipes (62) are respectively connected with the gas outlet end of the gas guide pipe (61), and the gas outlet ends of the two shunt pipes (62) are respectively provided in the left and right side walls of the plug-in box (2).

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