Automatic testing device for buckling deformation of dental zirconia porcelain block

Abstract

The utility model discloses a dental zirconia porcelain block warpage deformation automatic test device, including testboard, side measuring scale, middle measuring scale, locating lamp, computer and centering subassembly, a plurality of side measuring scale are all provided testboard's top, middle measuring scale is provided testboard's top, locating lamp is provided testboard's top, computer and centering subassembly are provided testboard's top, middle measuring scale is provided testboard's top, computer and centering subassembly are provided testboard's top. The computer is arranged on one side of the test board, and the centering assembly is inserted into the top end of the test board. By means of the design of the side measuring scales, the middle measuring scale, the positioning lamp, the computer and the centering assembly, the zirconia porcelain block is placed in the aperture, then the side measuring scales and the middle measuring scale are used for measuring the height of the four corners of the top end of the zirconia porcelain block and the height of the five positions of the middle of the zirconia porcelain block, and data are transmitted to the computer. The buckling deformation amount of the zirconia porcelain block is obtained through calculation of the computer, manpower is saved, and manual recording and calculation errors are reduced.

Description

Technical Field

[0001] This utility model relates to the field of dental zirconia ceramic block testing devices, and in particular to an automatic testing device for warping and deformation of dental zirconia ceramic blocks. Background Technology

[0002] During or after sintering, zirconia ceramic blocks may exhibit significant warping deformation. This deformation typically manifests as bending or twisting of the block in its length, width, or height, resulting in changes in its shape and size. Warping deformation not only affects the product's appearance but may also impact its mechanical properties and functional characteristics. The shape of the sintered zirconia ceramic block differs significantly from its unsintered form, possibly due to uneven distribution of temperature, pressure, and other conditions during sintering. While zirconia ceramic blocks shrink during sintering, uneven sintering conditions or other influencing factors can lead to inconsistent shrinkage rates in different directions, resulting in warping deformation. Warping deformation may be accompanied by the generation of internal stress. When this internal stress exceeds the material's tolerance limit, it can cause the ceramic block to crack or break. These cracks not only affect the product's mechanical properties but may also reduce its service life. Warping deformation can adversely impact the performance and function of zirconia ceramic blocks.

[0003] The problems with traditional experimental procedures are: traditional experimental devices only have a height measuring ruler, and when the experimenter tests the height of the zirconia ceramic block at different positions, the position of the ceramic block must be changed constantly. In addition, the data of the existing experimental devices cannot be transmitted for manual recording. This testing method is time-consuming, labor-intensive, has a long testing cycle, and manual recording is prone to errors. Utility Model Content

[0004] The purpose of this invention is to provide an automatic testing device for the warping and deformation of dental zirconia ceramic blocks, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic testing device for the warping deformation of dental zirconia ceramic blocks, comprising:

[0006] Test stand, the test stand being used to place zirconia ceramic blocks;

[0007] Side measuring rulers, multiple side measuring rulers are set on the top of the test platform, and the side measuring rulers are used to detect the side height of the zirconia ceramic block;

[0008] A central measuring ruler is installed at the top of the test platform and is used to detect the central height of the zirconia ceramic block.

[0009] A positioning light is installed at the top of the test bench and is used for positioning the zirconia ceramic block.

[0010] A computer is installed on one side of the test bench and is used to receive detection data from the side measuring ruler and the middle measuring ruler.

[0011] The centering component is interspersed at the top of the test bench and is used to center the zirconia ceramic block.

[0012] Preferably, the plurality of side measuring rulers are symmetrically arranged at the four corners of the zirconia ceramic block, and the bottom ends of the plurality of side measuring rulers are fixedly connected to the top end of the test platform, and the bottom end of the central measuring ruler is fixedly connected to the top end of the test platform.

[0013] Preferably, the output ends of the multiple side measuring rulers and the output ends of the middle measuring ruler are electrically connected to the input end of the computer.

[0014] Preferably, the positioning light is fitted with a mounting bracket for fixing the positioning light, and the bottom end of the mounting bracket is fixedly connected to the top end of the test bench.

[0015] Preferably, the centering component includes:

[0016] A pusher claw, which is disposed at the top of the test bench;

[0017] A driving component, which is disposed at the bottom end of the test bench, is used to provide moving force;

[0018] A linkage component is inserted at the top of the test bench and is used to drive the pusher claw to move.

[0019] Preferably, the top of the test bench is provided with a guide groove for the movement of the linkage component, the linkage component includes a linkage rod, the top of the linkage rod is fixedly connected to one end of the push claw, and a threaded groove is provided on one side of the linkage rod.

[0020] Preferably, the driving component includes a bidirectional screw, which is threadedly connected to a threaded groove. One end of the bidirectional screw is fitted with a bearing, and a first fixing plate is fixedly connected to one side of the bearing. One side of the first fixing plate is fixedly connected to one side of the test bench. The other end of the bidirectional screw is provided with a second fixing plate, and a circular hole is opened on one side of the second fixing plate. The bidirectional screw is inserted into the circular hole, and one side of the second fixing plate is fixedly connected to the other side of the test bench.

[0021] The technical effects and advantages of this utility model are as follows:

[0022] This invention utilizes a design incorporating side measuring rulers, a center measuring ruler, a positioning light, a computer, and a centering component. The positioning light illuminates a circular aperture at the top of the test platform. A zirconia ceramic block is then placed within this aperture, and symmetrical push claws move towards each other until the center of the zirconia block aligns with the center of the aperture. Multiple side and center measuring rulers are then used to measure the height of the zirconia block at its four corners and five points at the center. The data is transmitted to the computer, which calculates the warping deformation of the zirconia block. This method saves manpower and reduces errors from manual recording and calculation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0024] Figure 2 This is one of the three-dimensional structural diagrams of the test platform and centering components of this utility model.

[0025] Figure 3 This is the second three-dimensional structural diagram of the test platform and centering component of this utility model.

[0026] Figure 4 This is a three-dimensional structural diagram of the push claw and linkage rod of this utility model.

[0027] In the diagram: 1. Test bench; 2. Side measuring ruler; 3. Center measuring ruler; 4. Positioning light; 5. Mounting bracket; 6. Computer; 7. Centering assembly; 71. Push claw; 72. Linkage rod; 73. Bidirectional screw; 74. Bearing; 75. First fixing plate; 76. Second fixing plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides, for example Figure 1-4 An automated testing device for warpage deformation of dental zirconia ceramic blocks, as shown, includes:

[0030] Test stand 1, used to hold zirconia ceramic blocks;

[0031] Side measuring ruler 2, multiple side measuring rulers 2 are set on the top of the test platform 1, and the side measuring ruler 2 is used to detect the side height of the zirconia ceramic block;

[0032] The central measuring ruler 3 is set at the top of the test platform 1 and is used to detect the central height of the zirconia ceramic block.

[0033] Positioning light 4 is set at the top of test bench 1 and is used for positioning the zirconia ceramic block.

[0034] Computer 6 is located on one side of test bench 1. Computer 6 is used to receive the detection data from side measuring ruler 2 and middle measuring ruler 3.

[0035] Centering component 7 is interspersed at the top of test platform 1 and is used for centering the zirconia ceramic block.

[0036] Multiple side measuring rulers 2 are symmetrically arranged at the four corners of the zirconia ceramic block. The bottom ends of the multiple side measuring rulers 2 are fixedly connected to the top of the test platform 1, and the bottom end of the central measuring ruler 3 is fixedly connected to the top of the test platform 1.

[0037] The output ends of the multiple side measuring rulers 2 and the output end of the central measuring ruler 3 are all electrically connected to the input end of the computer 6.

[0038] The positioning light 4 is fitted with a mounting bracket 5 for fixing the positioning light 4, and the bottom end of the mounting bracket 5 is fixedly connected to the top end of the test bench 1.

[0039] Furthermore, both the side measuring ruler 2 and the middle measuring ruler 3 are existing models of HDM-30AX dual-column digital display height rulers. The side measuring ruler 2 and the middle measuring ruler 3 transmit data through a connecting cable, transmitting the measurement data to the computer 6 for recording. The side measuring ruler 2 and the middle measuring ruler 3 are fixedly connected to the top of the test platform 1 by adhesive bonding. Four side measuring rulers 2 are set. Due to the deformation and warping of the zirconia ceramic block, which is mainly characterized by a high center and low periphery, the detection ends of the four side measuring rulers 2 are set directly above the four corners of the top of the zirconia ceramic block. The detection end of the middle measuring ruler 3 is located directly above the center of the top of the zirconia ceramic block. The positioning light 4 is an existing model of T850AY16100 circular laser. The positioning light 4 is electrically connected to an external control power supply. When the positioning light 4 is turned on, a light circle is formed on the top of the test platform 1, and the center of the light circle overlaps with the detection end of the middle measuring ruler 3.

[0040] Centering component 7 includes:

[0041] Push claw 71, push claw 71 is set at the top of test stand 1;

[0042] The driving component is located at the bottom of the test bench 1 and is used to provide the moving force.

[0043] The linkage component is inserted at the top of the test bench 1 and is used to drive the pusher 71 to move.

[0044] The top of the test bench 1 is provided with a guide groove for the movement of the linkage component. The linkage component includes a linkage rod 72. The top of the linkage rod 72 is fixedly connected to one end of the push claw 71. A threaded groove is provided on one side of the linkage rod 72.

[0045] The driving component includes a bidirectional screw 73, which is threadedly connected to a threaded groove. One end of the bidirectional screw 73 is fitted with a bearing 74, and a first fixing plate 75 is fixedly connected to one side of the bearing 74. One side of the first fixing plate 75 is fixedly connected to one side of the test bench 1. The other end of the bidirectional screw 73 is provided with a second fixing plate 76. A circular hole is opened on one side of the second fixing plate 76, and the bidirectional screw 73 is threadedly connected to the circular hole. One side of the second fixing plate 76 is fixedly connected to the other side of the test bench 1.

[0046] Furthermore, the centering component 7 functions to place a zirconia ceramic block within the aperture, with its center coinciding with the aperture's center. Two symmetrically arranged pushers 71 are provided, each with a groove at its opposite end to push the zirconia ceramic block. A linkage rod 72 is located at the end of the pusher 71 furthest from the groove. The pusher 71 and linkage rod 72 are welded together at their contact points. The threads on the inner wall of the threaded groove of the linkage rod 72 mesh with the threads on the outer wall of the bidirectional screw 73. By rotating the bidirectional screw 73, the two linkage rods 72 move towards or away from each other. The two pushers 71 move towards or away from each other. The bearing 74 is fixedly sleeved on the outer wall of the end of the bidirectional screw 73. The outer ring thickness of the bearing 74 is greater than the inner ring thickness. One side of the outer ring of the bearing 74 is welded and fixed to the part in contact with the first fixing plate 75. The first fixing plate 75 is welded and fixed to the test bench 1. The inner wall of the circular hole is a smooth inner wall. The second fixing plate 76 is welded and fixed to the part in contact with the test bench 1. The width of the guide groove corresponds to the width of the linkage rod 72. Thus, by rotating the bidirectional screw 73, the linkage rod 72 can only move in a straight line along the guide groove.

[0047] Before testing, the computer 6 is connected to multiple side measuring rulers 2 and a center measuring ruler 3. The positioning light 4 is turned on, projecting a circular image onto the center of the top of the test platform 1 for positioning the zirconia ceramic block. The multiple side measuring rulers 2 and the center measuring ruler 3 are calibrated and zeroed. During testing, the zirconia ceramic block is placed at the aperture position, and the pusher 71 is moved so that the center of the zirconia ceramic block is aligned with the center of the aperture. The test probes of the multiple side measuring rulers 2 and the center measuring ruler 3 measure the height of the zirconia ceramic block at the four symmetrical circumferences and the height of the center position, respectively. The obtained test data is transmitted to the computer via cable. 6. Data recording and calculation are performed using data software (such as Excel) on the computer. The maximum value of the five height values ​​is taken and the minimum value of the five height values ​​is subtracted. The difference is the warping deformation of the tested zirconia ceramic block. This solves the problems of traditional testing devices, which only have a height measuring ruler. When testing the height of the zirconia ceramic block in different positions, the experimenter has to keep changing the position of the ceramic block. In addition, the existing experimental devices cannot transmit and calculate data. All data is recorded and calculated manually. The testing process is time-consuming and labor-intensive, the testing cycle is long, and manual recording and calculation are prone to errors. This method effectively simplifies the testing process and greatly improves the testing efficiency.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic testing device for the warping deformation of dental zirconia ceramic blocks, characterized in that, include: Test stand (1), the test stand (1) is used to place zirconia ceramic blocks; Side measuring ruler (2), multiple side measuring rulers (2) are set on the top of the test table (1), and the side measuring rulers (2) are used to detect the side height of the zirconia ceramic block; A central measuring ruler (3) is set at the top of the test bench (1) and is used to detect the central height of the zirconia ceramic block. Positioning light (4), the positioning light (4) is set on the top of the test bench (1), the positioning light (4) is used for positioning the zirconia ceramic block; Computer (6), the computer (6) is set on one side of the test bench (1), the computer (6) is used to receive the detection data of the side measuring ruler (2) and the middle measuring ruler (3); Centering component (7), which is interspersed at the top of the test bench (1), is used for centering the zirconia ceramic block.

2. The automatic testing device for warping deformation of dental zirconia ceramic blocks according to claim 1, characterized in that, Multiple side measuring rulers (2) are symmetrically arranged at the four corners of the zirconia ceramic block. The bottom ends of the multiple side measuring rulers (2) are fixedly connected to the top end of the test platform (1). The bottom end of the middle measuring ruler (3) is fixedly connected to the top end of the test platform (1).

3. The automatic testing device for warping deformation of dental zirconia ceramic blocks according to claim 1, characterized in that, The output ends of the multiple side measuring rulers (2) and the output end of the middle measuring ruler (3) are all electrically connected to the input end of the computer (6).

4. The automatic testing device for warping deformation of dental zirconia ceramic blocks according to claim 1, characterized in that, The positioning light (4) is fitted with a mounting bracket (5) for fixing the positioning light (4), and the bottom end of the mounting bracket (5) is fixedly connected to the top end of the test bench (1).

5. An automatic testing device for warping deformation of dental zirconia ceramic blocks according to claim 1, characterized in that, The centering component (7) includes: Push claw (71), said push claw (71) is disposed at the top of the test stand (1); A driving component is disposed at the bottom end of the test bench (1) and is used to provide a moving force; The linkage is inserted at the top of the test bench (1) and is used to drive the pusher (71) to move.

6. The automatic testing device for warping deformation of dental zirconia ceramic blocks according to claim 5, characterized in that, The top of the test bench (1) is provided with a guide groove for the movement of the linkage component. The linkage component includes a linkage rod (72). The top of the linkage rod (72) is fixedly connected to one end of the push claw (71). A threaded groove is provided on one side of the linkage rod (72).

7. An automatic testing device for warping deformation of dental zirconia ceramic blocks according to claim 6, characterized in that, The driving component includes a bidirectional screw (73), which is threadedly connected to a threaded groove. One end of the bidirectional screw (73) is fitted with a bearing (74), and a first fixing plate (75) is fixedly connected to one side of the bearing (74). One side of the first fixing plate (75) is fixedly connected to one side of the test bench (1). The other end of the bidirectional screw (73) is provided with a second fixing plate (76), and a round hole is opened on one side of the second fixing plate (76). The bidirectional screw (73) is threadedly connected to the round hole, and one side of the second fixing plate (76) is fixedly connected to the other side of the test bench (1).

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