Compression resistance detection device for acrylic plate

Abstract

The utility model relates to the technical field of compression resistance detection, in particular to a compression resistance detection device for an acrylic plate. The portal frame is fixedly installed at the top of the detection table, a hydraulic cylinder is fixedly installed at the top of the portal frame, and the driving end of the hydraulic cylinder movably penetrates through the top of the portal frame; the pressure probe is detachably mounted below the driving end of the hydraulic cylinder; and the clamping assembly comprises two worm wheels which are symmetrically and rotatably mounted at the bottom of the detection table. According to the utility model, the worm is controlled by the driving motor to rotate, so that the two worm gears rotate synchronously and reversely, and then each moving shaft is shifted to slide in the corresponding arc-shaped hole, so that the two clamping plates can be driven to move oppositely until the clamping plates abut against an acrylic plate to be detected, and the clamping and fixing of the acrylic plate can be completed. The acrylic plate is located under the pressure probe, so that the effect of stably and centrally fixing the acrylic plate is achieved, and the compression resistance detection effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure resistance testing technology, and in particular to a pressure resistance testing device for acrylic sheets. Background Technology

[0002] Acrylic, also known as specially treated plexiglass, is a next-generation product replacing traditional plexiglass. Light boxes made of acrylic offer excellent light transmission, pure and rich colors, a beautiful and smooth surface, good daytime and nighttime visibility, long lifespan, and no impact on usability. Furthermore, acrylic sheets can be perfectly combined with aluminum composite panels and high-grade screen printing. During the processing of acrylic sheets, a compression testing device is required to perform compression testing.

[0003] However, existing acrylic sheet testing devices typically use two cylinders to fix the acrylic sheet on both sides during compression testing. Since the opening and closing of the two cylinders may have a delay, it is easy to make it difficult to clamp the acrylic sheet in the center, resulting in insufficient stability and easily affecting the testing. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the background art by proposing a pressure resistance testing device for acrylic sheets.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A compressive strength testing device for acrylic sheets, comprising:

[0007] Testing station;

[0008] A gantry frame is fixedly installed on the top of the testing platform. A hydraulic cylinder is fixedly installed on the top of the gantry frame, and the driving end of the hydraulic cylinder moves through the top of the gantry frame.

[0009] A pressure probe is detachably installed below the drive end of the hydraulic cylinder;

[0010] The clamping assembly includes two worm gears symmetrically and rotatably mounted on the bottom of the testing platform. A worm gear meshes between the two worm gears. A drive motor for driving the worm gear to rotate is fixedly mounted on the bottom of the testing platform. Two movable shafts are symmetrically slidably connected to the surface of each worm gear, and two arc-shaped holes are symmetrically opened on the surface of each worm gear. Multiple arc-shaped holes are slidably connected to multiple movable shafts respectively. A connecting plate is fixedly connected to the lower end of each movable shaft. A connecting shaft is fixedly mounted on the other end of each connecting plate, and the connecting shaft slides through the bottom of the testing platform. A clamping plate is fixedly mounted on the upper end of each pair of connecting shafts located on the same left and right sides, and the clamping plate slides against the top of the testing platform.

[0011] Preferably, a lifting plate is slidably mounted on both sides of the gantry frame, and two springs are connected between the lifting plate and the testing table. The upper end of the pressure probe slides through the bottom of the lifting plate and is fixedly mounted on an installation plate.

[0012] Preferably, the top of the testing platform is provided with multiple sliding holes, and the sliding holes are slidably connected to the moving shaft.

[0013] Preferably, the two ends of each of the two arc-shaped holes on the same side are respectively close to and far from the center of the corresponding worm gear.

[0014] Preferably, the top of the lifting plate is provided with a mounting hole, and the mounting hole is slidably connected to or separated from the pressure probe.

[0015] Compared with existing technologies, the advantages of the compressive strength testing device for acrylic sheets provided by this utility model are as follows:

[0016] This invention uses a drive motor to control the rotation of a worm gear, causing two worm wheels to rotate in opposite directions. Then, by using each arc-shaped hole to move the corresponding moving shaft, each moving shaft moves closer to the center of the corresponding worm wheel. Thus, through each connecting plate and connecting shaft, the two clamping plates can be moved towards each other until they are pressed against the acrylic plate to be tested, thereby completing the clamping and fixing of the acrylic plate. This places the acrylic plate directly below the pressure probe, achieving a stable and centered fixation of the acrylic plate and improving the pressure resistance testing effect. Attached Figure Description

[0017] Figure 1 This is a first-view structural schematic diagram of a pressure testing device for acrylic sheets proposed in this utility model.

[0018] Figure 2 This is a second-view structural schematic diagram of a pressure resistance testing device for acrylic sheets proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the clamping component structure in the compressive strength testing device for acrylic sheets proposed in this utility model;

[0020] Figure 4 This is an exploded structural diagram of the connection between the pressure probe and the lifting plate in a pressure testing device for acrylic sheets proposed in this utility model.

[0021] In the diagram: 1. Testing platform, 2. Gantry frame, 3. Hydraulic cylinder, 4. Pressure probe, 5. Worm gear, 6. Worm, 7. Drive motor, 8. Arc hole, 9. Moving shaft, 10. Connecting plate, 11. Connecting shaft, 12. Clamping plate, 13. Lifting plate, 14. Spring, 15. Mounting plate, 16. Mounting hole, 17. Sliding hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1 to 4 A compressive strength testing device for acrylic sheets, comprising:

[0024] Testing table 1; gantry 2, fixedly installed on the top of testing table 1, hydraulic cylinder 3 is fixedly installed on the top of gantry 2, and the drive end of hydraulic cylinder 3 moves through the top of gantry 2.

[0025] The pressure probe 4 is detachably installed below the drive end of the hydraulic cylinder 3. The two sides of the gantry 2 are slidably fitted with lifting plates 13. The lifting plates 13 and the testing table 1 are connected by two springs 14. The upper end of the pressure probe 4 slides through the bottom of the lifting plate 13 and is fixedly installed with a mounting plate 15. The top of the lifting plate 13 has a mounting hole 16, which is slidably connected to or separated from the pressure probe 4. In addition, the diameter of the mounting plate 15 is larger than the diameter of the mounting hole 16. If the pressure probe 4 is damaged and needs to be replaced, after the drive end of the hydraulic cylinder 3 moves away from it, it can be directly taken out from the mounting hole 16 to complete the disassembly, thus facilitating the disassembly and replacement of the pressure probe 4.

[0026] The clamping assembly includes two worm gears 5 symmetrically rotatably mounted on the bottom of the testing table 1, with a worm 6 meshing between the two worm gears 5. A drive motor 7 for driving the worm 6 to rotate is fixedly mounted on the bottom of the testing table 1. Two moving shafts 9 are symmetrically slidably connected to the surface of each worm gear 5, and two arc-shaped holes 8 are symmetrically opened on the surface of each worm gear 5. The multiple arc-shaped holes 8 are slidably connected to multiple moving shafts 9 respectively. The two ends of each pair of arc-shaped holes 8 on the same side are respectively close to and far from the center of the corresponding worm gear 5, so that when the worm gear 5 rotates, the rotation of the two arc-shaped holes 8 can be used to move the two moving shafts 9 slidably connected to them in the opposite direction.

[0027] Each movable shaft 9 has a connecting plate 10 fixedly connected to its lower end, and a connecting shaft 11 fixedly installed at the other end of each connecting plate 10. The connecting shaft 11 slides through the bottom of the testing table 1. The top of the testing table 1 has multiple sliding holes 17, which are slidably connected to the movable shaft 9. Each of the two connecting shafts 11 located on the same left and right sides has a clamping plate 12 fixedly installed at its upper end, and the clamping plate 12 slides against the top of the testing table 1.

[0028] The working principle of this utility model is as follows:

[0029] In use, the acrylic plate to be pressure tested is first placed on the testing platform 1. Then, the worm gear 6 is rotated by the drive motor 7, causing the two worm wheels 5 to rotate in opposite directions. Then, each arc hole 8 is used to move the corresponding moving shaft 9, causing each moving shaft 9 to move closer to the center of the corresponding worm wheel 5. Thus, through each connecting plate 10 and connecting shaft 11, the two clamping plates 12 can be moved towards each other until they are pressed against the acrylic plate to be tested. This completes the clamping and fixing of the acrylic plate, so that the acrylic plate is directly below the pressure probe 4, thereby achieving the effect of stable and centered fixing of the acrylic plate and improving the pressure resistance test effect.

[0030] Finally, during testing, the drive end of the hydraulic cylinder 3 is moved down to contact the mounting plate 15, which in turn pushes the lifting plate 13 to move the pressure probe 4 down to press against the acrylic plate for pressure detection.

[0031] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A compressive strength testing device for acrylic sheets, characterized in that, Include: Detection platform (1); Gantry (2) is fixedly installed on the top of the detection platform (1), the top of the gantry (2) is fixedly installed with a hydraulic cylinder (3), and the driving end of the hydraulic cylinder (3) is movably penetrated through the top of the gantry (2); Pressure probe (4) is detachably installed below the driving end of the hydraulic cylinder (3); Clamping assembly, including two worm gears (5) symmetrically installed on the bottom of the detection platform (1), the two worm gears (5) are jointly meshed with a worm (6), the bottom of the detection platform (1) is fixedly installed with a driving motor (7) for driving the worm (6) to rotate, the surface of each worm gear (5) is symmetrically connected with two moving shafts (9), and the surface of each worm gear (5) is also symmetrically provided with two arc-shaped holes (8), a plurality of arc-shaped holes (8) are respectively connected with a plurality of moving shafts (9), the lower end of each moving shaft (9) is fixedly connected with a connecting plate (10), the other end of each connecting plate (10) is fixedly installed with a connecting shaft (11), and the connecting shaft (11) is slidably penetrated in the bottom of the detection platform (1), the upper end of each connecting shaft (11) on the same side is fixedly installed with a clamping plate (12), and the clamping plate (12) is slidably attached to the top of the detection platform (1).

2. The compression detection device for the acrylic plate according to claim 1, wherein The two sides of the gantry (2) are commonly slidably sleeved with a lifting plate (13), the lifting plate (13) and the detection platform (1) are commonly connected with two springs (14), the upper end of the pressure probe (4) is slidably penetrated in the bottom of the lifting plate (13) and fixedly installed with a mounting plate (15).

3. The compression detection device for the acrylic plate according to claim 1, wherein The top of the detection platform (1) is provided with a plurality of sliding holes (17), and the sliding holes (17) are slidably connected with the moving shafts (9).

4. The compression detection device for the acrylic plate according to claim 1, wherein The two ends of each arc-shaped hole (8) on the same side are respectively close to and away from the center of the corresponding worm gear (5).

5. The compression detection device for the acrylic plate according to claim 2, wherein The top of the lifting plate (13) is provided with a mounting hole (16), and the mounting hole (16) is slidably connected or separated from the pressure probe (4).

Images