An auxiliary alignment structure and a device for testing the bending modulus of sheet metal.

Abstract

This utility model relates to the technical field of bending modulus testers, and discloses an auxiliary alignment structure and a bending modulus testing device for sheet metal. The device includes a mounting base with a groove inside. Sliding blocks are slidably connected to both ends of the groove. A bidirectional lead screw is rotatably connected to the middle of the mounting base. The threaded grooves at both ends of the bidirectional lead screw are in opposite directions. The two ends of the bidirectional lead screw are threadedly connected to two sliding blocks respectively. A support is fixed to the top of each sliding block, and a collecting block is slidably connected to the outside of the support. Because the sliding blocks fixed to the bottom of the two supports are threadedly connected to the bidirectional lead screw, and the threaded grooves at both ends of the bidirectional lead screw are in opposite directions, the two supports move synchronously, ensuring that the pressure head is always in the middle position between the two supports. This makes adjusting the supports simpler, more convenient, and easier to operate.

Description

Technical Field

[0001] This utility model relates to the technical field of bending modulus testers, specifically an auxiliary alignment structure and a bending modulus tester for sheet metal. Background Technology

[0002] The specialized equipment for testing the flexural modulus of sheet materials is commonly known as a flexural modulus tester, also called a universal testing machine. This equipment is specifically designed for measuring the flexural modulus of materials, accurately capturing stress and strain data during the bending process, and thus precisely calculating the flexural modulus. Its applications are wide-ranging, covering material manufacturers, research institutions, commodity inspection and arbitration departments, and educational units. It can test metallic and non-metallic materials such as mobile phone glass, tempered glass, and cardboard boxes, making it an indispensable testing tool in materials research and development, quality inspection, and teaching.

[0003] In the three-point bending test, the support of the existing flexural modulus tester serves to support the specimen, while the indenter applies the bending load. To ensure uniform load distribution and accurate measurement of the flexural modulus, the support and indenter must be strictly aligned. If the support is misaligned, causing the indenter to become misaligned, it will lead to uneven stress on the specimen and localized stress concentration. However, current equipment lacks an auxiliary alignment structure, making the support adjustment process cumbersome and complex, requiring repeated checks and calibrations. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an auxiliary alignment structure and a plate bending modulus testing device, making the adjustment of the support simpler, more convenient, and easier to operate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary alignment structure, including a mounting base, a sliding groove inside the mounting base, sliders slidably connected to both ends of the sliding groove, a bidirectional lead screw rotatably connected to the middle position of the mounting base, the threaded grooves at both ends of the bidirectional lead screw having opposite directions, the two ends of the bidirectional lead screw being threadedly connected to two sliders respectively, a support fixed to the top of the slider, and a collecting block slidably connected to the outside of the support.

[0006] Furthermore, waste discharge grooves are provided on both sides of the mounting base, and the middle position of the waste discharge groove is connected to the slide groove.

[0007] Furthermore, the bottom of the waste discharge trough is inclined, and the cross-section of the waste discharge trough is trapezoidal.

[0008] Furthermore, a handwheel is provided at one end of the bidirectional lead screw, and the handwheel is fixedly connected to the bidirectional lead screw.

[0009] Furthermore, a limiting block is fixed to the outer side of the support, and a limiting groove matching the limiting block is opened on the side of the collecting block near the support.

[0010] Furthermore, the end of the limiting block is trapezoidal, and the inside of the collecting block is provided with a collecting groove.

[0011] A sheet metal bending modulus testing device includes a testing instrument body, the testing instrument body also includes the aforementioned auxiliary alignment structure, the auxiliary alignment structure is installed at the lower end of the inner side of the testing instrument body, and a pressure head is installed at the upper end of the inner side of the testing instrument body.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This type of auxiliary alignment structure and sheet metal bending modulus testing device has two sliders fixed to the bottom of the two supports that are threadedly connected to the bidirectional lead screw. The threaded grooves at both ends of the bidirectional lead screw are in opposite directions, so the two supports will move synchronously so that the pressure head is always in the middle position of the two supports. This makes the adjustment of the supports simpler, more convenient and easier to operate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure between the mounting base and the slider of this utility model;

[0016] Figure 3 This is a partial sectional view of the mounting base of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the support of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the collection block of this utility model.

[0019] In the diagram: 1. Tester body; 2. Pressure head; 3. Mounting base; 4. Support; 5. Slide groove; 6. Slider; 7. Two-way lead screw; 8. Handwheel; 9. Waste discharge groove; 10. Collection block; 11. Limiting block; 12. Limiting groove; 13. Collection groove. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5An auxiliary alignment structure and sheet metal bending modulus testing device includes a mounting base 3, a groove 5 inside the mounting base 3, sliders 6 slidably connected to both ends of the groove 5, a bidirectional lead screw 7 rotatably connected to the middle position of the mounting base 3, the threaded grooves at both ends of the bidirectional lead screw 7 are in opposite directions, the two ends of the bidirectional lead screw 7 are threadedly connected to two sliders 6 respectively, a support 4 is fixedly connected to the top of the slider 6, and a collecting block 10 is slidably connected to the outside of the support 4.

[0022] In this utility model, the auxiliary alignment structure and the plate bending modulus testing device have a dual-axis screw 7. Since the sliders 6 fixed to the bottom of the two supports 4 are threadedly connected to the dual-axis screw 7, and the threaded grooves at both ends of the dual-axis screw 7 are in opposite directions, the two supports 4 will move synchronously when the dual-axis screw 7 is rotated (i.e., the two supports 4 move synchronously towards the center of the test instrument body 1 or move synchronously away from the center of the test instrument body 1). This ensures that the pressure head 2 is always in the middle position of the two supports 4, making it easier and more convenient to adjust the supports 4. In addition, the broken sample can be collected and intercepted by the collecting block 10 to prevent waste from splashing everywhere.

[0023] like Figure 2 and Figure 3 As shown, waste discharge grooves 9 are provided on both sides of the mounting base 3, and the middle position of the waste discharge grooves 9 is connected to the slide groove 5.

[0024] Specifically, after the sample breaks, the waste generated during the breakage sometimes falls directly into the chute 5 and is then discharged through the waste discharge chute 9, thus preventing the waste from remaining in the chute 5 and causing the slider 6 to have difficulty sliding.

[0025] like Figure 3 As shown, the bottom of the waste discharge trough 9 is inclined, and the cross-section of the waste discharge trough 9 is trapezoidal.

[0026] Specifically, the inclined waste discharge trough 9 and the trapezoidal waste discharge trough 9 make it difficult for waste to accumulate in the chute 5 and the waste discharge trough 9.

[0027] like Figure 2 and Figure 3 As shown, a handwheel 8 is provided at one end of the bidirectional lead screw 7, and the handwheel 8 is fixedly connected to the bidirectional lead screw 7.

[0028] Specifically, turning the double-acting lead screw 7 via the handwheel 8 is more labor-saving and convenient.

[0029] like Figure 2 , Figure 4 and Figure 5 As shown, a limiting block 11 is fixedly connected to the outer side of the support 4, and a limiting groove 12 matching the limiting block 11 is provided on the side of the collecting block 10 near the support 4.

[0030] like Figure 4 and Figure 5 As shown, the end of the limiting block 11 is trapezoidal, and the inside of the collecting block 10 is provided with a collecting groove 13.

[0031] Specifically, the height of collecting block 10 is greater than the height of support 4, such as Figure 2 and Figure 3 As shown, the sample to be tested is placed on the support 4. When the sample is crushed by the pressure head 2 and splashes towards both ends of the mounting base 3, it will be intercepted by the collection block 10 and fall into the collection groove 13, thus preventing waste from splashing everywhere and causing injury to the testing personnel. At the same time, the collection block 10 is connected and fixed to the support 4 through the limiting block 11 and the limiting groove 12, making the installation and disassembly of the collection block 10 simple and convenient.

[0032] A sheet metal bending modulus testing device includes a testing instrument body 1. The testing instrument body 1 also includes the aforementioned auxiliary alignment structure. The auxiliary alignment structure is installed at the lower end of the inner side of the testing instrument body 1, and a pressure head 2 is installed at the upper end of the inner side of the testing instrument body 1.

[0033] It is worth noting that both the main body 1 and the pressure head 2 are existing mature products, so they will not be discussed in detail here.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. An auxiliary alignment structure comprising a mounting base (3), characterized in that, The mounting base (3) has a groove (5) inside. Both ends of the groove (5) are slidably connected to sliders (6). A bidirectional screw (7) is rotatably connected to the middle position of the mounting base (3). The threaded grooves at both ends of the bidirectional screw (7) are in opposite directions. Both ends of the bidirectional screw (7) are threadedly connected to two sliders (6). A support (4) is fixed to the top of the slider (6). A collecting block (10) is slidably connected to the outside of the support (4).

2. An alignment aid according to claim 1, wherein Waste discharge grooves (9) are provided on both sides of the mounting base (3), and the middle position of the waste discharge grooves (9) is connected to the slide groove (5).

3. An alignment aid according to claim 2, wherein The bottom of the waste discharge trough (9) is inclined, and the cross-section of the waste discharge trough (9) is trapezoidal.

4. An alignment aid according to claim 1, wherein, One end of the bidirectional lead screw (7) is provided with a handwheel (8), and the handwheel (8) is fixedly connected to the bidirectional lead screw (7).

5. The auxiliary alignment structure according to claim 1, characterized in that, A limiting block (11) is fixedly connected to the outside of the support (4), and a limiting groove (12) matching the limiting block (11) is opened on the side of the collecting block (10) near the support (4).

6. An alignment aid according to claim 5, wherein The end of the limiting block (11) is trapezoidal, and the inside of the collecting block (10) is provided with a collecting groove (13).

7. A board bending modulus testing device comprising a tester body (1), characterized in that, The tester body (1) further includes an auxiliary alignment structure as described in any one of claims 1-6. The auxiliary alignment structure is installed at the lower end of the inner side of the tester body (1), and a pressure head (2) is installed at the upper end of the inner side of the tester body (1).

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