Device for testing strength of coating material

Abstract

The utility model relates to the technical field of strength testing devices, and discloses a strength testing device for a coating material, which comprises a testing device, a lifting seat is mounted on the testing device, clamps are mounted on the lifting seat and the testing device, a connecting rod is fixedly connected onto the testing device, and the connecting rod is fixedly connected with the lifting seat. The end, away from the testing device, of the connecting rod is fixedly connected with a support, two openings are formed in the support, a plurality of positioning blocks used for positioning workpieces are arranged in the two openings, moving assemblies used for controlling the positioning blocks to move are arranged in the two openings, and the moving assemblies are located between the two clamps. When the strength testing device for the coating material provided by the utility model works and tension data of a workpiece in a vertical state needs to be tested, a worker can quickly position the workpiece, the operation is simple and convenient, and the accuracy of a testing result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of strength testing devices, in particular to a strength testing device for coating materials. Background Art

[0002] Coating material strength testing equipment is usually used to evaluate the mechanical properties, abrasion resistance, adhesion and other characteristics of the coating under different conditions. Such testing equipment can help manufacturers, researchers and quality control personnel understand the durability and performance of the coating to ensure that it can meet the expected requirements in actual applications.

[0003] After searching, a tensile testing machine with the publication number CN207472660U is provided, which is provided with a driving component for synchronously driving the two ends of the moving beam so that the moving beam maintains a horizontal state and moves in the height direction, a tensile auxiliary tool for clamping the sample to be tested, and a sensing module mounted on the driving component for collecting tensile data during the tensile test. This technical solution can make the moving beam less likely to tilt and shake, making the tensile testing machine more stable during the tensile test, so that the data measured by the sensing module can be more accurate. However, the above technical solution still has the following shortcomings when it is actually used:

[0004] During the test, the data at the measurement point will be different depending on the placement of the workpiece. When the workpiece is in a vertical state, the test results may more accurately reflect the strength of the coating in the vertical direction, because the coating needs to withstand the vertical tension corresponding to the gravity. The test results in this case can provide a reference value for the vertical strength. However, when the workpiece is in an inclined state, the test results may be affected by additional forces such as shear force, which may cause part of the stress to be concentrated in the oblique direction rather than in the completely vertical direction, which will cause data deviations. In the prior art, the loading of workpieces relies on hand-held work by staff. When testing some regular workpieces such as rods or strips, it is generally necessary to test the data in the vertical direction. The operation process uses manual observation to place the workpiece vertically, so the actual measurement data has large errors, which reduces the accuracy and stability of the device.

[0005] Therefore, it is necessary to design a coating material strength testing device to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes a coating material strength testing device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A device for testing the strength of coating materials comprises a testing device, a lifting seat is installed on the testing device, and clamps are installed on the lifting seat and the testing device. A connecting rod is fixedly connected to the testing device, and a bracket is fixedly connected to the end of the connecting rod away from the testing device. Two openings are provided on the bracket, and a plurality of positioning blocks for positioning workpieces are provided in the two openings. A moving component for controlling the movement of the positioning blocks is provided in the two openings, and the moving component is located between the two clamps. A driving component is also provided on the bracket, and the driving component is connected to the two moving components.

[0009] As a preferred technical solution of the utility model, the moving component includes a fixed disk, a turntable, multiple sliding openings, multiple sliding columns, multiple guide columns and multiple guide openings, the fixed disk is fixedly connected to the bracket, the multiple guide openings are all opened on the fixed disk, one end of the multiple guide columns are respectively located in the multiple guide openings, and the other ends of the multiple guide columns are respectively fixedly connected to the bottom of the multiple positioning blocks, the turntable is rotatably connected in the opening, the multiple sliding openings are all opened on the turntable, one end of the multiple sliding columns are respectively rotatably connected to the top of the positioning blocks, and the other ends of the multiple sliding columns are respectively located inside the multiple sliding openings, and the multiple positioning blocks are all located between the turntable and the fixed disk.

[0010] As a preferred technical solution of the utility model, the driving assembly includes two gear rings, a rotating shaft and two gears. The two gear rings are fixedly mounted on two turntables respectively. The rotating shaft passes through a bracket, and the rotating shaft is rotatably connected to the bracket. The two gears are fixedly mounted on the rotating shaft, and the two gears are respectively meshed with the two gear rings.

[0011] As a preferred technical solution of the utility model, the fixed disk, the opening and the rotating disk are coaxially arranged.

[0012] As a preferred technical solution of the utility model, a bearing is provided in the opening, the turntable is rotatably connected to the opening via the bearing, the inner ring of the bearing is fixed to the side wall of the turntable, and the outer ring of the bearing is fixed to the inner side of the opening.

[0013] As a preferred technical solution of the utility model, a plurality of positioning blocks are arranged at equal intervals in the circumferential direction.

[0014] The utility model has the following beneficial effects:

[0015] 1. Improve the accuracy of test results: With the coordinated action of multiple positioning blocks and moving components, the workpiece can be quickly positioned so that the workpiece can be in a vertical state. Compared with the manual placement and adjustment method, the positioning block method improves the accuracy of the test results and reduces the error of the test data;

[0016] 2. Efficient and fast: The rotating shaft can drive the movement of the positioning block to achieve rapid positioning of the workpiece. The operation is simple and convenient, avoiding the need for workers to observe the workpiece multiple times with the naked eye to adjust the position, improving the efficiency of the test and reducing human errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a coating material strength testing device proposed by the utility model;

[0018] Figure 2 for Figure 1 A magnified view of the local structure;

[0019] Figure 3 An exploded view of the mobile component;

[0020] Figure 4 is a schematic diagram of the structure of the drive component;

[0021] Figure 5 A schematic diagram of the three-dimensional structure of the bracket.

[0022] In the figure: 1 testing device, 2 lifting seat, 3 fixture, 4 connecting rod, 5 bracket, 6 opening, 7 fixed plate, 8 rotating plate, 9 positioning block, 10 sliding opening, 11 sliding column, 12 guide column, 13 guide opening, 14 gear ring, 15 rotating shaft, 16 gear. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-5 , a coating material strength testing device, including a testing device 1, a lifting seat 2 is installed on the testing device 1, and a clamp 3 is installed on the lifting seat 2 and the testing device 1. The clamp 3 is composed of a clamp and a threaded rod. Its working principle and internal structure are both existing technologies and are not the innovation points of this solution. No more details are given here. A connecting rod 4 is fixedly connected to the testing device 1, and a bracket 5 is fixedly connected to the end of the connecting rod 4 away from the testing device 1. The bracket 5 is a U-shaped structure, and two openings 6 are provided on the bracket 5. A plurality of positioning blocks 9 for positioning the workpiece are provided in the two openings 6. A moving component for controlling the movement of the positioning block 9 is provided in the two openings 6. The two moving components are symmetrically arranged, and the moving component is located between the two clamps 3. When the workpiece is placed on the clamp 3, the two moving components can synchronously position the workpiece to ensure the accuracy of positioning. A driving component is also provided on the bracket 5, and the driving component is connected to the two moving components.

[0025] Reference Figure 2-4 The moving assembly includes a fixed disk 7, a rotating disk 8, a plurality of sliding openings 10, a plurality of sliding columns 11, a plurality of guide columns 12 and a plurality of guide openings 13. The fixed disk 7 is fixedly connected to the bracket 5. The plurality of guide openings 13 are all opened on the fixed disk 7. One ends of the plurality of guide columns 12 are respectively located in the plurality of guide openings 13, and the other ends of the plurality of guide columns 12 are respectively fixedly connected to the bottom of the plurality of positioning blocks 9. The guide openings 13 and the guide columns 12 guide the positioning blocks 9 so that the positioning blocks 9 move along the graphic trajectory of the guide openings 13. The rotating disk 8 is rotatably connected in the opening 6. The plurality of sliding openings 10 are all opened on the rotating disk 8. One ends of the plurality of sliding columns 11 are respectively rotatably connected to the top of the positioning blocks 9, and the other ends of the plurality of sliding columns 11 are respectively located inside the plurality of sliding openings 10. The plurality of positioning blocks 9 are all located between the rotating disk 8 and the fixed disk 7. The positioning blocks 9 are fan-shaped structures. Under the drive of the moving assembly, the plurality of positioning blocks 9 can gather toward the center direction of the rotating disk 8 to realize the positioning of the workpiece.

[0026] Reference Figure 2 and Figure 5 The driving assembly includes two gear rings 14, a rotating shaft 15 and two gears 16. The two gear rings 14 are fixedly mounted on the two turntables 8 respectively. The rotating shaft 15 passes through the bracket 5 and is rotatably connected to the bracket 5. The two gears 16 are fixedly mounted on the rotating shaft 15. The two gears 16 are respectively meshed with the two gear rings 14. By setting up the driving assembly, the staff only needs to twist the rotating shaft 15 to drive the multiple positioning blocks 9 to move, and the positioning blocks 9 in the two moving assemblies can move synchronously, so that the contact between the workpiece and the two moving assemblies is in a coaxial state, ensuring that the workpiece can be in a vertical state, and the operation is more convenient.

[0027] Reference Figure 2 and Figure 3 The fixed disk 7, the opening 6 and the rotating disk 8 are coaxially arranged, so that the workpiece can also be coaxial with the three, thereby ensuring that the workpiece is in a vertical state and ensuring the accuracy of the test data in the vertical direction of the workpiece.

[0028] Reference Figure 2 and Figure 5 A bearing is provided in the opening 6, and the turntable 8 is rotatably connected to the opening 6 through the bearing. The inner ring of the bearing is fixed to the side wall of the turntable 8, and the outer ring of the bearing is fixed to the inner side of the opening 6 to ensure the stability of the overall structure of the device.

[0029] Reference Figure 3 and Figure 4 A plurality of positioning blocks 9 are arranged at equal intervals in the circumferential direction, and two adjacent positioning blocks 9 are in contact with each other, thus ensuring the accuracy of positioning the workpiece.

[0030] The specific working principle of the utility model is as follows:

[0031] The staff first inserts the workpiece to be tested between the two fixtures 3 so that the two ends of the workpiece are located in the two fixtures 3, and rotates the rotating shaft 15 to rotate the gear 16, thereby driving the gear ring 14 and the turntable 8 to rotate. The rotation of the turntable 8 will drive the sliding port 10 to rotate together, so that the sliding column 11 moves along the graphic trajectory of the sliding port 10. The movement of the sliding column 11 drives the positioning block 9 to move, and the guide column 12 moves along the graphic trajectory of the guide port 13. In this way, multiple positioning blocks 9 move toward the center of the turntable 8 until multiple positioning blocks 9 fit with the outer surface of the workpiece. During the movement of the positioning block 9, the guide column 12 and the guide port 13 contact the positioning block 9. The movement plays a limiting role. Since the side walls of multiple positioning blocks 9 are vertical, the positioning blocks 9 can be tightly attached to keep the workpiece in a vertical state. Since two groups of moving components are provided, the two fixed disks 7 are coaxial, and the rotating shaft 15 can drive the two groups of positioning blocks 9 to move synchronously. In this way, the two parts of the workpiece can be vertically positioned to ensure the accuracy of positioning. After positioning, the clamp 3 is used to fix the workpiece, and then the rotating shaft 15 is reversed to prevent the positioning block 9 from contacting the workpiece to prevent force on the workpiece from affecting the test results. The above operation can improve the accuracy of the test data of the device, and there is no need for the staff to observe with the naked eye many times to adjust the position of the workpiece, thereby improving the efficiency of the test, and the operation is simple and convenient.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coating material strength testing device, comprising a testing device (1), characterized in that: The test device (1) is provided with a lifting seat (2), and both the lifting seat (2) and the test device (1) are provided with a fixture (3). The test device (1) is fixedly connected with a connecting rod (4), and one end of the connecting rod (4) away from the test device (1) is fixedly connected with a bracket (5), and the bracket (5) is provided with two openings (6), and a plurality of positioning blocks (9) for positioning the workpiece are provided in the two openings (6), and a moving assembly for controlling the movement of the positioning blocks (9) is provided in the two openings (6), and the moving assembly is located between the two fixtures (3). The bracket (5) is also provided with a driving assembly, and the driving assembly is connected to the two moving assemblies.

2. A coating material strength testing device according to claim 1, characterized in that: The moving assembly comprises a fixed disk (7), a rotating disk (8), a plurality of sliding openings (10), a plurality of sliding columns (11), a plurality of guide columns (12) and a plurality of guide openings (13); the fixed disk (7) is fixedly connected to the bracket (5); the plurality of guide openings (13) are all opened on the fixed disk (7); one end of the plurality of guide columns (12) are respectively located in the plurality of guide openings (13); and the other ends of the plurality of guide columns (12) are respectively fixedly connected to the bottom of the plurality of positioning blocks (9); the rotating disk (8) is rotatably connected in the opening (6); the plurality of sliding openings (10) are all opened on the rotating disk (8); one end of the plurality of sliding columns (11) are respectively rotatably connected to the top of the positioning block (9); and the other ends of the plurality of sliding columns (11) are respectively located inside the plurality of sliding openings (10); and the plurality of positioning blocks (9) are all located between the rotating disk (8) and the fixed disk (7).

3. A coating material strength testing device according to claim 2, characterized in that: The driving assembly comprises two gear rings (14), a rotating shaft (15) and two gears (16); the two gear rings (14) are respectively fixedly sleeved on the two rotating disks (8); the rotating shaft (15) passes through a bracket (5), and the rotating shaft (15) is rotatably connected to the bracket (5); the two gears (16) are both fixedly sleeved on the rotating shaft (15), and the two gears (16) are respectively meshed with the two gear rings (14).

4. A coating material strength testing device according to claim 3, characterized in that: The fixed disk (7), the opening (6) and the rotating disk (8) are coaxially arranged.

5. A coating material strength testing device according to claim 4, characterized in that: A bearing is provided in the opening (6), and the turntable (8) is rotatably connected to the opening (6) via the bearing. The inner ring of the bearing is fixed to the side wall of the turntable (8), and the outer ring of the bearing is fixed to the inner side of the opening (6).

6. A coating material strength testing device according to claim 2, characterized in that: The plurality of positioning blocks (9) are arranged at equal intervals in the circumferential direction.

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