A compression testing fixture for fiberglass sheet samples

Abstract

This utility model belongs to the field of compression testing fixtures, specifically relating to a compression testing fixture for fiberglass sheet samples. It includes a base plate, a pressure plate, and a square clamping frame. The clamping frame is fixed to the base plate, and at least one plate of the clamping frame is a movable plate, detachably connected to the clamping frame and the base plate. The pressure plate can press down on the fiberglass sheet sample within the clamping frame. This utility model uses a base plate and a clamping frame to clamp and fix the fiberglass sheet sample. The assembly of the base plate, clamping frame, and fiberglass sheet sample is placed below the output end of the compression device, while the base plate is fixed to the worktable, thereby preventing the fiberglass sheet sample from shifting when the output end of the compression device performs a compression test.

Description

Technical Field

[0001] This utility model belongs to the field of compression testing fixtures, specifically relating to a compression testing fixture for fiberglass plate samples. Background Technology

[0002] Fiberglass, scientifically known as fiber reinforced plastic, commonly called FRP, is a composite material that uses glass fiber and its products (glass cloth, tape, felt, yarn, etc.) as reinforcing materials and synthetic resin as the matrix material.

[0003] Evaluating the quality of a fiberglass reinforced plastic (FRP) material requires performance testing. Compressive strength and compressive modulus testing are among the main performance tests required by the International Organization for Standardization (ISO). Current methods for FRP compression testing involve placing the FRP sample directly under the output of a compression press. Because the sample is not secured by other equipment, it is prone to displacement during compression, affecting the test results. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the fact that when the fiberglass plate sample is compressed, there is no special tooling to fix it, which causes the fiberglass plate sample to shift when the output end of the press compresses the fiberglass plate sample, thus affecting the test results.

[0005] To solve the above-mentioned technical problems, this utility model provides a fiberglass plate sample compression test fixture, including a base plate, a pressure plate and a square clamping frame. The clamping frame is fixed on the base plate, and at least one of the plates of the clamping frame is a movable plate that is detachably connected to the clamping frame and the base plate. The pressure plate can press down on the fiberglass plate sample inside the clamping frame.

[0006] Preferably, the clamping frame includes an independent first transverse plate, a second transverse plate, a first longitudinal plate, and a second longitudinal plate. The length directions of the first transverse plate and the second transverse plate extend along the X-axis, and the length directions of the first longitudinal plate and the second longitudinal plate extend along the Y-axis. The first transverse plate and the first longitudinal plate are both fixed on the base plate. The second transverse plate on the base plate can be adjusted in position along the Y-axis, and the second longitudinal plate on the base plate can be adjusted in position along the X-axis.

[0007] Preferably, it further includes a base plate, a connecting plate, and two pressing fasteners. The clamping frame is directly disposed on the base plate. The connecting plate is fixed on the base plate and can be adjusted in position along the X-axis direction. Its length direction is consistent with the Y-axis direction. The base plate is provided with two symmetrically arranged pressing fasteners. The two pressing fasteners are arranged along the X-axis direction, and the actuators of the pressing fasteners can press down on the top surface of the base plate. The base plate can be adjusted in position along the Y-axis direction on the connecting plate.

[0008] Preferably, the base plate is provided with a first elongated hole and a second elongated hole, the length direction of the first elongated hole and the second elongated hole extends along the X-axis direction, and each end of the connecting plate is provided with a first mounting hole and a second mounting hole, the first mounting hole and the first elongated hole are fixed with bolts and nuts, and the second mounting hole and the second elongated hole are fixed with bolts and nuts.

[0009] Preferably, the connecting plate is provided with a third elongated hole extending along its own length direction, and the base plate is symmetrically arranged with a third mounting hole and a fourth mounting hole. The third mounting hole and the fourth mounting hole are arranged along the Y-axis direction, and both the third mounting hole and the fourth mounting hole can be fixed to the third elongated hole by bolts and nuts.

[0010] Preferably, the pressing and fixing component includes a screw, a threaded sleeve, a clamping plate, and a knob. The threaded sleeve is vertically fixed on the base plate, and the base plate has a through hole for the threaded sleeve to pass through. The screw passes vertically through the threaded sleeve and is threadedly connected to the threaded sleeve. The clamping plate is fixed to the bottom end of the screw, and the knob is fixed to the top end of the screw.

[0011] The technical solution of this utility model has the following beneficial effects: Before pressing down on the fiberglass plate sample, this utility model first uses a base plate and a clamping frame to clamp and fix the fiberglass plate sample. The combination of the base plate, clamping frame and fiberglass plate sample is placed below the output end of the pressing device, and the base plate is fixed to the worktable, thereby avoiding the phenomenon that the fiberglass plate sample will shift when the output end of the pressing device presses down on the fiberglass plate sample for testing. Attached Figure Description

[0012] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram of the present invention after the pressure plate has been removed; Figure 3 This is a top view of the present invention after the pressure plate has been removed; Figure 4 for Figure 3 A cross-sectional view along the AA direction; Figure 5This is a schematic diagram of the connection relationship of the second transverse plate provided by this utility model; Figure 6 This is a schematic diagram of the groove opening structure provided by this utility model.

[0014] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. First elongated hole; 12. Second elongated hole; 2. Pressure plate; 3. Clamping frame; 31. First transverse plate; 32. Second transverse plate; 33. First longitudinal plate; 34. Second longitudinal plate; 4. Base plate; 41. Third mounting hole; 42. Fourth mounting hole; 43. Through hole; 5. Connecting plate; 51. First mounting hole; 52. Second mounting hole; 53. Third elongated hole; 6. Downward pressing fastener; 61. Screw; 62. Threaded sleeve; 63. Pressure plate; 64. Knob. Detailed Implementation

[0015] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0019] Please see Figures 1-5This utility model provides a compression test fixture for fiberglass plate samples, including a base plate 1, a pressure plate 2, and a square clamping frame 3. The clamping frame 3 is fixed on the base plate 1, and at least one of the plates of the clamping frame 3 is a movable plate that is detachably connected to the clamping frame 3 and the base plate 1. The pressure plate 2 can press down on the fiberglass plate sample inside the clamping frame 3.

[0020] When a compression test is required on a fiberglass sheet sample, the sample is first placed into the clamping frame 3 from above. Then, one of the movable plates is re-secured to the clamping frame 3, tightly clamping the sample. The sample's height is significantly greater than the clamping frame 3, extending beyond its top. The pressure plate 2 can be lowered using a pressing device to press down on the sample, thus compressing it. This clamping prevents the sample from shifting during compression. During the descent of the pressure plate 2, the guide post 8, located within the guide sleeve 7, provides guidance, preventing the pressure plate 2 from shifting its center during lifting and lowering.

[0021] In order to accommodate fiberglass sheet samples of different specifications, the second transverse plate 32 and the second longitudinal plate 34 are configured to be adjustable in position. When clamping the fiberglass sheet sample, firstly, two adjacent edges of the fiberglass sheet sample are placed against the first transverse plate 31 and the first longitudinal plate 33, respectively. Then, the second transverse plate 32 and the second longitudinal plate 34 are moved towards the fiberglass sheet sample until the second transverse plate 32 and the second longitudinal plate 34 are tightly pressed against the other two edges of the fiberglass sheet sample, thereby clamping the fiberglass sheet sample. Specifically, the clamping frame 3 includes independent first transverse plate 31, second transverse plate 32, first longitudinal plate 33, and second longitudinal plate 34. The first transverse plate 31 and second transverse plate 32 extend along the X-axis, and the first longitudinal plate 33 and second longitudinal plate 34 extend along the Y-axis. The first transverse plate 31 and the first longitudinal plate 33 are both fixed to the base plate 1. The second transverse plate 32 can be adjusted in position along the Y-axis on the base plate 1, and the second longitudinal plate 34 can be adjusted in position along the X-axis on the base plate 1. The second transverse plate 32 and the second longitudinal plate 34 are connected to the base plate 4 by bolts and nuts.

[0022] As an embodiment provided by this utility model, such as Figure 5 As shown, taking the second horizontal plate 32 as an example, the second horizontal plate 32 is connected to the base plate 4 by bolts and nuts, as follows: Figure 1 As shown, the second longitudinal plate 34 is also connected to the base plate 4 by bolts and nuts to prevent it from sliding during use.

[0023] Of course, the center position of fiberglass sheet samples of different specifications will constantly change after being clamped on the base plate 1, resulting in a mismatch between the center of the fiberglass sheet sample and the center of the pressure plate 2, causing the pressure of the pressure plate 2 to be applied evenly to the fiberglass sheet sample. Therefore, to avoid the above problems, this utility model is provided with a base plate 4, a connecting plate 5 and two pressing fasteners 6. The connecting plate 5 is fixed on the base plate 1 and can be adjusted along the X-axis direction, and its length direction is consistent with the Y-axis direction. The base plate 4 is provided with two symmetrically arranged pressing fasteners 6, which are arranged along the X-axis direction, and the actuator of the pressing fastener 6 can press down on the top surface of the base plate 1. The base plate 4 can be adjusted along the Y-axis direction on the connecting plate 5. In the initial state, the actuator of the pressing fastener 6 is above the base plate 1. First, the connecting plate 5 is adjusted along the X-axis on the base plate 1, and then the base plate 4 is adjusted along the Y-axis on the connecting plate 5, so that the center of the fiberglass plate sample coincides with the center of the pressure plate 2. Then, the two pressing fasteners 6 are rotated so that the ends of the pressing fasteners 6 abut against the base plate 1, ensuring that the fiberglass plate is evenly subjected to the pressure of the pressure plate 2.

[0024] Specifically, the fixing method between the connecting plate 5 and the base plate 1 is as follows: the base plate 1 is provided with a first elongated hole 11 and a second elongated hole 12. The length direction of the first elongated hole 11 and the second elongated hole 12 extends along the X-axis. The connecting plate 5 is provided with a first mounting hole 51 and a second mounting hole 52 at each end. The first mounting hole 51 and the first elongated hole 11 are fixed with bolts and nuts, and the second mounting hole 52 and the second elongated hole 12 are fixed with bolts and nuts.

[0025] Specifically, the fixing method between the substrate 4 and the connecting plate 5 is as follows: the connecting plate 5 is provided with a third elongated hole 53 extending along its own length direction, and the substrate 4 is provided with a third mounting hole 41 and a fourth mounting hole 42 symmetrically arranged. The third mounting hole 41 and the fourth mounting hole 42 are arranged along the Y-axis direction, and both the third mounting hole 41 and the fourth mounting hole 42 can be fixed to the third elongated hole 53 by bolts and nuts.

[0026] Specifically, the structure of the pressing fastener 6 includes a screw 61, a threaded sleeve 62, a clamping plate 63, and a knob 64. The threaded sleeve 62 is vertically fixed on the base plate 4, and the base plate 4 has a through hole 43 for the threaded sleeve 62 to pass through. The screw 61 passes vertically through the threaded sleeve 62 and is threadedly connected to the threaded sleeve 62. The knob 64 is fixed to the top of the screw 61, and the clamping plate 63 is fixed to the bottom of the screw 61. When the knob 64 is turned clockwise, the screw 61 descends due to its threaded connection with the threaded sleeve 62, causing the clamping plate 63 to descend and ultimately press against the base plate 1.

[0027] As a preferred embodiment provided by this utility model, such as Figure 6As shown, in all the sliding grooves provided in this utility model, an arc-shaped groove can be opened for abutting against the bolt and nut, further preventing the bolt and nut from sliding in the sliding groove.

[0028] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A glass steel plate sample compression test tooling comprising a base plate (1) and a press plate (2), characterized in that, It also includes a square clamping frame (3), which is fixed on the base plate (1). At least one of the plates of the clamping frame (3) is a movable plate, which is detachably connected to the clamping frame (3) and the base plate (1). The pressure plate (2) can press down the fiberglass plate sample inside the clamping frame (3).

2. The compression test tooling for a glass fiber reinforced plastic panel according to claim 1, wherein, The clamping frame (3) includes an independent first transverse plate (31), a second transverse plate (32), a first longitudinal plate (33), and a second longitudinal plate (34). The length direction of the first transverse plate (31) and the second transverse plate (32) extends along the X-axis, and the length direction of the first longitudinal plate (33) and the second longitudinal plate (34) extends along the Y-axis. The first transverse plate (31) and the first longitudinal plate (33) are both fixed on the base plate (1). The position of the second transverse plate (32) on the base plate (1) can be adjusted along the Y-axis, and the position of the second longitudinal plate (34) on the base plate (1) can be adjusted along the X-axis.

3. The compression test tooling for a glass fiber reinforced plastic panel according to claim 2, wherein, It also includes a base plate (4), a connecting plate (5) and two pressing fasteners (6). The clamping frame (3) is directly set on the base plate (4). The connecting plate (5) is fixed on the base plate (1) and can be adjusted along the X-axis direction. Its length direction is consistent with the Y-axis direction. The base plate (4) is provided with two symmetrically arranged pressing fasteners (6). The two pressing fasteners (6) are arranged along the X-axis direction, and the actuator of the pressing fastener (6) can press down on the top surface of the base plate (1). The base plate (4) can be adjusted along the Y-axis direction on the connecting plate (5).

4. The compression test tooling for a glass fiber reinforced plastic panel according to claim 3, wherein, The base plate (1) is provided with a first elongated hole (11) and a second elongated hole (12). The length direction of the first elongated hole (11) and the second elongated hole (12) extends along the X-axis. The connecting plate (5) is provided with a first mounting hole (51) and a second mounting hole (52) at each end. The first mounting hole (51) and the first elongated hole (11) are fixed with bolts and nuts, and the second mounting hole (52) and the second elongated hole (12) are fixed with bolts and nuts.

5. The compression test tooling for a glass fiber reinforced plastic panel according to claim 3, wherein, The connecting plate (5) is provided with a third elongated hole (53) extending along its own length direction. The base plate (4) is symmetrically arranged with a third mounting hole (41) and a fourth mounting hole (42). The third mounting hole (41) and the fourth mounting hole (42) are arranged along the Y-axis direction. Both the third mounting hole (41) and the fourth mounting hole (42) can be fixed on the third elongated hole (53) by bolts and nuts.

6. The compression test tooling for a glass fiber reinforced plastic panel according to claim 3, wherein, The lower pressing fixing part (6) comprises a screw rod (61), a threaded sleeve (62), a pressing plate (63) and a knob (64), the threaded sleeve (62) is vertically fixed on the base plate (4), the base plate (4) is provided with a through hole (43) for the threaded sleeve (62) to pass through, the screw rod is vertically inserted into the threaded sleeve (62) and is in threaded connection with the threaded sleeve (62), the pressing plate (63) is fixed at the bottom end of the screw rod (61), and the knob (64) is fixed at the top end of the screw rod (61).

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