Plate frame body for pendulum bob impact test and test tool

Abstract

The utility model discloses a plate frame body for a pendulum bob impact test and a test tooling, the plate frame body comprises a support frame body, a fixing structure and a base, the support frame body is arranged on the base, the fixing structure is detachably connected with the support frame body, the support frame body is provided with an accommodating area and an impact area, and the fixing structure is used for fixing the impact area when a plate is arranged in the support frame body. And fixing the part, corresponding to the accommodating area, of the plate with the support frame body, so that the part, corresponding to the impact area, of the plate is impacted by a pendulum bob mechanism of the test tool. A pendulum bob mechanism of the test tool is used for falling from a preset height so as to impact the plate located in the impact area of the supporting frame body. The supporting frame body is arranged on the base, and when the plate is arranged in the supporting frame body, the fixing structure fixes the part, corresponding to the accommodating area, of the plate with the supporting frame body, so that the part, corresponding to the impact area, of the plate can be used for an impact test of the pendulum bob mechanism, and the structural strength and the safety are high; and the detection accuracy is ensured.

Description

Technical Field

[0001] This application relates to the technical field of impact resistance testing of plates, and specifically relates to a plate frame and a testing tooling for a pendulum impact test. Background Art

[0002] In many key fields such as rail transit, aerospace, electronic communication, and medical devices, due to its many excellent properties such as easy processing, light weight, and high transparency, transparent materials represented by PMMA (Polymethyl methacrylate) have prominent application advantages. However, PMMA has defects of low strength and insufficient toughness. Therefore, in specific usage scenarios such as sound barriers in the rail transit field, it is still necessary to test its impact resistance performance to avoid potential safety hazards.

[0003] Currently, there is a lack of testing tooling or equipment for pendulum impact tests that can meet the performance evaluation requirements in this field in China. Relevant manufacturing enterprises need to send the plates to European Union countries for testing, which is not only expensive but also has a long cycle, and has a greater impact on the timeliness of project development, bringing certain obstacles to the application and promotion of PMMA materials. In response to this, the applicant has proposed a testing tooling for pendulum impact tests. By lifting the pendulum mechanism to a preset height and then releasing the pendulum mechanism to impact the plate arranged on the fixed frame, the impact resistance performance of the plate can be detected.

[0004] However, in the current prior art, there is a lack of a fixed frame adapted to the above-mentioned testing tooling. When the pendulum mechanism falls from the preset height and impacts the plate to be tested, on the one hand, the impact force received by the plate will push the fixed support with insufficient support strength to displace, affecting the detection accuracy, and on the other hand, it is extremely easy to damage the fixed support, presenting certain potential safety hazards. Summary of the Utility Model

[0005] Aiming at the above technical problems, this application provides a plate frame and a testing tooling for a pendulum impact test, aiming to solve the problems existing in the prior art described in the background art.

[0006] This application provides a plate frame and a testing tooling for a pendulum impact test. The plate frame includes a support frame, a fixing structure, and a base. The support frame is arranged on the base, the fixing structure is detachably connected to the support frame, the support frame has a receiving area and an impact area, and the fixing structure is used to fix the part of the plate corresponding to the receiving area to the support frame when the plate is placed in the support frame, so that the part of the plate corresponding to the impact area is available for the pendulum mechanism of the testing tooling to conduct an impact test.

[0007] Optionally, the base includes a first base and a second base, the first base and the second base are cross-arranged within a preset angle range, and the support frame is arranged on the first base, or on the second base.

[0008] Optionally, the angle range is 80° to 100°.

[0009] Optionally, the support frame includes a horizontal frame and two vertical frames, the horizontal frame is arranged on the base, the two vertical frames are respectively abutted against two ends of the horizontal frame, and the horizontal frame and the two vertical frames form a space for placing the plate.

[0010] Optionally, a support platform is provided on the end surface of the horizontal frame, which protrudes outward and has two ends extending toward the two vertical frames respectively.

[0011] Optionally, a buffer is provided on the support platform.

[0012] Optionally, the fixing structure includes a plurality of fasteners, and the plurality of fasteners are respectively arranged at intervals along the length direction of the horizontal frame and the vertical frame, thereby forming the accommodating area and the impact area together with the supporting platform.

[0013] Optionally, the fixing structure further comprises a positioning plate, and the positioning plate is used to be connected to the fastener when the plate is placed on the supporting platform.

[0014] Optionally, the plate frame further includes a reinforcing member, which is disposed on the base and abuts against a side of the horizontal frame away from the supporting platform.

[0015] The present application also provides a test fixture for a pendulum impact test, the test fixture comprising a pendulum mechanism and the plate frame as described above, the pendulum mechanism being used to fall from a preset height to impact a plate located in an impact area of the support frame.

[0016] The present application sets a supporting frame on the base, and when the plate is set in the supporting frame, the fixing structure fixes the part of the plate corresponding to the accommodating area to the supporting frame, so that the part of the plate corresponding to the impact area can be used for the pendulum mechanism to perform an impact test. The structural strength and safety are high, and the detection accuracy is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of the three-dimensional structure of a sheet metal rack for a pendulum impact test provided by an embodiment of the present application;

[0019] Figure 2 Exploded structure diagram of a sheet metal rack for a pendulum impact test provided by an embodiment of the present application;

[0020] Figure 3 Front view structure diagram of a sheet metal rack for a pendulum impact test provided by an embodiment of the present application;

[0021] Figure 4 Partial three-dimensional structure diagram of a sheet metal rack for a pendulum impact test and a test tooling provided by an embodiment of the present application. Detailed implementation manners

[0022] The following will describe in detail specific embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all of them. Based on the description of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0023] In the description of the present invention, unless otherwise clearly defined and limited, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed during use. It is only for the convenience of description and simplification of the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0025] Moreover, the terms "first", "second", "third", etc. are only used to distinguish components with similar attributes, rather than indicating or implying relative importance or a specific order.

[0026] In addition, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion. In addition to the listed elements, it may also include other elements not expressly listed.

[0027] Please refer to Figure 1 , Figure 1 FIG. shows a schematic three-dimensional structure diagram of a plate frame for a pendulum impact test. The plate frame includes a support frame 10, a fixing structure 20, and a base 30. The support frame 10 is disposed on the base 30, and the fixing structure 20 is detachably connected to the support frame 10. The support frame 10 has a receiving area and an impact area. The fixing structure 20 is used to fix the part of the plate 90 corresponding to the receiving area to the support frame 10 when the plate 90 is placed inside the support frame 10, so that the part of the plate 90 corresponding to the impact area can be subjected to an impact test by the pendulum mechanism of the test tooling. Specifically, in this embodiment, the base 30 is located on the horizontal ground, and the support frame 10 is vertically disposed at the top of the base 30. Among them, the base 30 is used to keep the whole plate frame stable, that is, it will not displace even when impacted by the pendulum mechanism. Therefore, its own weight is usually much greater than the weight of the pendulum mechanism. Exemplarily, the base 30 can be made of a metal material or made by pouring cement, and is not limited herein.

[0028] In one implementation, the support frame 10 can be a "U"-shaped frame structure, and the plate 90 can be placed inside the support frame 10 through the opening above the support frame 10. The support frame 10 has a receiving area for fitting the edge part of the plate 90 with the support frame 10, and an impact area for showing the central part of the plate 90. The fixing structure 20 is used to fix the edge part of the plate 90 corresponding to the receiving area to the support frame 10 when the plate 90 is placed inside the support frame 10, so that the central part of the plate 90 corresponding to the impact area can be subjected to an impact test by the pendulum mechanism of the test tooling. Thus, with the cooperation of the base 30, the support frame 10, and the fixing structure 20, a plate frame with a sufficiently high structural strength is formed, which will not displace even when impacted by the pendulum mechanism, ensuring the detection accuracy and high safety.

[0029] Optionally, the base 30 includes a first base 31 and a second base 32, the first base 31 and the second base 32 are arranged to intersect at a preset angular range, and the support frame 10 is arranged on the first base 31 or the second base 32. Specifically, in this embodiment, the base 30 includes a first base 31 and a second base 32 that are arranged to intersect with each other, and the support frame 10 can be arbitrarily arranged on the first base 31 or the second base 32. Among them, a cross structure is formed between the first base 31 and the second base 32 at a preset included angle, which plays a role in stabilizing the entire sheet metal frame.

[0030] Optionally, the angular range is 80° to 100°. Specifically, in this embodiment, the included angle between the first base 31 and the second base 32 can be 80°, 82°, 84°, 85°, 88°, 90°, 91°, 93°, 95°, 99°, 100°, which is not uniquely limited here. Among them, the included angle between the first base 31 and the second base 32 is preferably 90°, that is, the first base 31 and the second base 32 are arranged to intersect perpendicularly to each other. In this way, the base 30 can stabilize the entire sheet metal frame horizontally and vertically, significantly improving the stability.

[0031] Please refer to Figure 2 , Figure 2 FIG. shows an exploded structural schematic diagram of a sheet metal frame for a pendulum impact test. The support frame 10 includes a horizontal frame 11 and two vertical frames 12. The horizontal frame 11 is arranged on the base 30, and the two vertical frames 12 are respectively abutted against both ends of the horizontal frame 11. The horizontal frame 11 and the two vertical frames 12 form a space for placing the sheet 90. Specifically, in this embodiment, the support frame 10 includes a horizontal frame 11 in a flat state and two vertical frames 12 in a vertical state. Among them, the horizontal frame 11 is arranged on the base 30, and the end of any one vertical frame 12 is correspondingly arranged with the end of the horizontal frame 11, and this end is arranged on the base 30 to form a "U"-shaped support frame 10.

[0032] Optionally, a support platform 112 that protrudes outward and extends from both ends to the two vertical frames 12 is provided on the end surface of the horizontal frame 11. Specifically, in this embodiment, a support platform 112 is provided on the end surface of the horizontal frame 11. Among them, the support platform 112 protrudes outward along the width direction of the horizontal frame 11, and both ends extend to the two vertical frames 12 respectively. In this way, when the sheet 90 is placed on the horizontal frame 11, the lower side edge of the sheet 90 can be supported by the support platform 112, and the left and right side edges in the horizontal direction will respectively abut against the two vertical frames 12.

[0033] Optionally, a buffer member (not shown in the figure) is provided on the support platform 112. Specifically, in this embodiment, a buffer member is provided on the support platform 112 for cushioningly abutting and supporting the lower side edge of the plate 90. The buffer member (not shown in the figure) is made of a soft material, and the soft material can be, for example, silicone rubber, polyurethane, flannelette, or one of other materials with shock absorption and buffering effects, which is not limited herein.

[0034] Please refer to Figure 3 , Figure 3 FIG. shows a front view structural schematic diagram of a plate rack for a pendulum impact test. The fixing structure 20 includes a plurality of fasteners 21, and the plurality of fasteners 21 are respectively arranged at intervals along the length directions of the horizontal frame 11 and the vertical frame 12, so as to form a receiving area and an impact area with the support platform 112. Specifically, in this embodiment, the plurality of fasteners 21 are arranged at intervals along the length direction of the horizontal frame 11 on the horizontal frame 11 and are arranged at intervals along the length direction of the vertical frame 12 on the vertical frame 12. Among them, the fasteners 21 play a role in limiting and dividing areas.

[0035] In one implementation, as shown in area A of Figure 3 , a plurality of fasteners 21 arranged on the vertical frame 12 respectively leave the inner areas of the two vertical frames 12. This area is the receiving area, and when the plate 90 is placed on the support platform 112, the left and right side edges of the plate 90 in the horizontal direction respectively abut against the two receiving areas. As shown in area B of Figure 3 , the area between the two receiving areas is the impact area, and the part of the plate 90 located in the impact area is used for the pendulum mechanism of the test tooling to perform an impact test.

[0036] Please refer to Figure 2 , the fixing structure 20 further includes a positioning plate 22, and the positioning plate 22 is used to connect with the fasteners 21 when the plate 90 is placed on the support platform 112. Specifically, in this embodiment, the fasteners 21 play a role in fixing the plate 90 placed on the support platform 112 between the positioning plate 22 and the support frame 10. Among them, in the illustrated structure, corresponding to the horizontal frame 11 and the two vertical frames 12, the positioning plate 22 is composed of three independent plates. In other implementations, the positioning plate 22 can also be formed by a whole plate, which is not limited herein.

[0037] Optionally, the plate frame further includes a reinforcing member (not shown in the figure), which is disposed on the base 30 and abuts against the side of the horizontal frame 11 away from the support platform 112. Specifically, in this embodiment, a side of the support platform 112 protruding outward along the width direction of the horizontal frame 11 is defined as the impact front, and the other side is defined as the impact back. The reinforcing member (not shown in the figure) is a counterweight structure with a certain weight, which can abut against the horizontal frame 11 when the impact front is impacted by abutting against the impact back, thereby improving the stability of the entire support frame 10 when it is impacted.

[0038] Please refer to Figure 4 , Figure 4 A partial three-dimensional structural diagram of a plate frame and a test fixture for a pendulum impact test is shown. In this embodiment, the test fixture includes a pendulum mechanism 80 and the plate frame as described above. In actual implementation, when the plate 90 is placed in the support frame 10 under the fixation of the fixing structure 20, the pendulum mechanism 80 is released from a preset height, and the falling pendulum mechanism 80 will hit the plate 90 located in the impact area of the support frame 10, thereby completing the test of the impact resistance of the plate 90.

[0039] The present application sets a supporting frame on the base, and when the plate is set in the supporting frame, the fixing structure fixes the part of the plate corresponding to the accommodating area to the supporting frame, so that the part of the plate corresponding to the impact area can be used for the pendulum mechanism to perform an impact test. The structural strength and safety are high, and the detection accuracy is guaranteed.

[0040] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A sheet metal frame for a pendulum impact test, characterized in that, The plate frame includes a supporting frame, a fixing structure and a base, wherein the supporting frame is arranged on the base, and the fixing structure is detachably connected to the supporting frame, and the supporting frame has a accommodating area and an impact area, and the fixing structure is used to fix the portion of the plate corresponding to the accommodating area to the supporting frame when the plate is placed in the supporting frame, so that the portion of the plate corresponding to the impact area is provided for the pendulum mechanism of the test fixture to perform an impact test.

2. The sheet metal frame according to claim 1, characterized in that, The base includes a first base and a second base, the first base and the second base are cross-arranged within a preset angle range, and the support frame is arranged on the first base or the second base.

3. The sheet metal frame according to claim 2, characterized in that, The angle range is 80° to 100°.

4. The sheet metal frame according to claim 1, characterized in that, The support frame includes a horizontal frame and two vertical frames. The horizontal frame is arranged on the base. The two vertical frames are respectively abutted against two ends of the horizontal frame. The horizontal frame and the two vertical frames form a space for placing a plate.

5. The sheet metal frame according to claim 4, wherein, A support platform is provided on the end surface of the horizontal frame, which protrudes outward and has two ends extending toward the two vertical frames respectively.

6. The sheet metal frame according to claim 5, characterized in that, A buffer is arranged on the supporting platform.

7. The sheet metal frame according to claim 5, characterized in that, The fixing structure includes a plurality of fasteners, and the plurality of fasteners are respectively arranged at intervals along the length direction of the horizontal frame and the vertical frame, thereby forming the accommodating area and the impact area with the supporting platform.

8. The sheet metal frame according to claim 7, characterized in that, The fixing structure further comprises a positioning plate, and the positioning plate is used to be connected with the fastener when the plate is placed on the supporting platform.

9. The sheet metal frame according to claim 5, characterized in that The plate frame also includes a reinforcing member, which is disposed on the base and abuts against a side of the horizontal frame away from the supporting platform.

10. A test tool for pendulum impact test, characterized in that, The test fixture comprises a pendulum mechanism and a plate frame according to any one of claims 1 to 9, wherein the pendulum mechanism is used to fall from a preset height to impact a plate located in an impact area of the support frame.

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