A strength testing device for dental ceramic tooth production

Abstract

The utility model discloses a kind of dental ceramic tooth production strength testing devices, including device machine table, lifting mechanism, lower pressure head and bearing die table, machine table is equipped with placing recess for placing bearing die table, lower pressure head is driven to tooth by telescopic cylinder drive lifting frame and pressurizes, lower pressure head integrated pressure sensor real-time monitoring pressure value, protection mechanism includes spring buffer's protective cover, can cage cover test area and prevent splinter splashing, cover body is equipped with observation window to facilitate monitoring, for bearing die table handling difficult problem, additional electromagnet-driven pusher mechanism, when electrified, pusher column is flush with groove bottom, so that die table is completely embedded, when power off, spring pushes pusher column and lifts die table to facilitate handling.

Description

Technical Field

[0001] This utility model relates to the technical field of tooth strength testing devices, specifically a strength testing device for the production of dental ceramic teeth. Background Technology

[0002] Dental ceramic teeth are widely used in the field of oral restoration due to their excellent biocompatibility, aesthetics, and mechanical properties. However, the brittle nature of ceramic materials makes them prone to fracture under stress. Therefore, rigorous strength testing must be conducted during the manufacturing process to ensure that they can withstand normal occlusal forces and fatigue stresses during long-term use.

[0003] Currently, common dental ceramic strength testing devices typically employ mechanical or hydraulic actuation, applying pressure to ceramic teeth placed on a support platform via a pressure head to determine their compressive or flexural strength. However, during testing, existing devices may cause ceramic teeth to suddenly fracture due to excessive pressure, resulting in high-speed fragmentation. Traditional testing devices lack effective protective structures, and these flying fragments could injure operators, posing a significant safety hazard. Utility Model Content

[0004] In view of the above-mentioned shortcomings in the existing technology, the purpose of this utility model is to provide a strength testing device that can improve the safety of the device.

[0005] The technical solution adopted by this utility model to achieve the above-mentioned objective is: a strength testing device for the production of dental ceramic teeth, comprising a device platform, a lifting mechanism, a lower pressure head, a bearing mold platform, and a protective mechanism. The device platform is provided with a placement groove, in which the bearing mold platform is placed. The lifting mechanism is fixedly connected to the device platform, and the lifting mechanism includes a lifting frame. A connecting column is fixedly connected to the lifting frame, and the lower pressure head is fixedly connected to the bottom end of the connecting column. The lower pressure head corresponds to the bearing mold platform, and the lifting frame is provided with a protective mechanism.

[0006] The protective mechanism includes a protective cover, a first spring, and a sliding column. The sliding column is slidably connected to the lifting frame, and the protective cover is fixedly connected to the sliding column. The protective cover has an observation window on at least one side. The first spring is sleeved on the sliding column. One end of the first spring is fixedly connected to the protective cover, and the other end is fixedly connected to the lifting frame. The connecting column passes through the protective cover, and the downward pressing head is located inside the protective cover.

[0007] In the above technical solution, the side wall of the bearing mold platform abuts against the inner wall of the placement groove.

[0008] In the above technical solution, the device has an installation cavity inside the machine base, and the installation cavity is connected to the placement groove by a movement hole. A pushing mechanism is fixedly connected inside the installation cavity, and the pushing mechanism includes a pushing column, which passes through the movement hole.

[0009] In the above technical solution, the lifting mechanism further includes a frame, a telescopic cylinder, and a guide column. The frame is fixedly connected to the machine platform of the device, and the guide column is slidably connected to the frame. The bottom end of the guide column is fixedly connected to the lifting frame, and the telescopic cylinder is fixedly connected to the frame. The piston end of the telescopic cylinder is fixedly connected to the lifting frame.

[0010] In the above technical solution, the pushing mechanism further includes an electromagnet, a motion table, a second spring, and a column. The column is fixedly connected to the mounting cavity, and the motion table is slidably connected to the column. The second spring is sleeved on the column, with one end of the second spring fixedly connected to the motion table and the other end fixedly connected to the mounting cavity. The electromagnet is fixedly connected to the mounting cavity, and an adsorption platform is fixedly connected to the motion table corresponding to the electromagnet. The pushing column is fixedly connected to the motion table. When the electromagnet adsorbs the adsorption platform, the top surface of the pushing column is flush with the bottom surface of the placement groove.

[0011] In the above technical solution, the pressure head includes a mounting part, a pressure sensor, and a pressure bearing platform. The pressure sensor is fixedly connected to the bottom surface of the mounting part, and the pressure bearing platform is fixedly connected to the bottom surface of the pressure sensor.

[0012] The beneficial effects of this utility model are:

[0013] 1. The lifting mechanism can drive the lifting frame and the lowering head to descend. After the lifting frame descends, the protective cover can cover the bearing mold table. When the lifting frame continues to descend, the first spring can provide space for further descent, while the lowering head can press down on the teeth on the bearing mold table to test the strength. This structure can achieve a protective effect, avoid the teeth from breaking and flying, causing injury to the surrounding test personnel, and improve the safety of the device.

[0014] 2. The support mold is fitted into the placement groove, and the side wall of the support mold abuts against the inner wall of the placement groove. This can fully limit the support mold and prevent it from shifting, which would affect the test results. In addition, a pushing mechanism is provided. After the test is completed, the power of the electromagnet can be turned off, so that under the elastic force of the second spring, the moving table drives the pushing column to rise, thereby pushing the support mold away from the placement groove, so as to facilitate the removal of the support mold. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the lower pressure head in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the bearing mold platform after it is separated from the placement groove in this utility model;

[0018] Figure 4 This is a schematic diagram of the material pushing mechanism in this utility model.

[0019] In the diagram: 100 Device platform, 101 Placement groove, 102 Installation cavity, 200 Bearing mold platform, 301 Frame, 302 Telescopic cylinder, 303 Guide column, 304 Lifting frame, 400 Lower pressure head, 401 Installation part, 402 Pressure sensor, 403 Pressure bearing platform, 501 Protective cover, 502 First spring, 503 Sliding column, 601 Push column, 602 Electromagnet, 603 Moving table, 604 Second spring, 605 Column, 700 Connecting column. 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. 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.

[0021] Please see Figures 1-4 A strength testing device for the production of dental ceramic teeth includes a device base 100, a lifting mechanism, a lower pressure head 400, a support mold 200, and a protective mechanism. The device base 100 is provided with a placement groove 101, and the support mold 200 is placed in the placement groove 101. The support mold 200 is used to place the tooth to be tested.

[0022] Furthermore, a lifting mechanism is fixedly connected to the device platform 100. The lifting mechanism includes a frame 301, a telescopic cylinder 302, a guide column 303, and a lifting frame 304. That is, a frame 301 is fixedly connected to the device platform 100, a guide column 303 is slidably connected to the frame 301, a lifting frame 304 is fixedly connected to the bottom end of the guide column 303, a telescopic cylinder 302 is fixedly connected to the frame 301, and the piston end of the telescopic cylinder 302 is fixedly connected to the lifting frame 304. The telescopic cylinder 302 can be an electric telescopic cylinder 302 or a hydraulic telescopic cylinder 302. The telescopic cylinder 302 can drive the lifting frame 304 to perform lifting and lowering movements.

[0023] Furthermore, a connecting column 700 is fixedly connected to the lifting frame 304, and a pressing head 400 is fixedly connected to the bottom end of the connecting column 700. The pressing head 400 corresponds to the bearing mold table 200. When the lifting frame 304 descends, it can drive the pressing head 400 to descend, thereby pressing down on the teeth on the bearing mold table 200 through the pressing head 400. Specifically, the pressing head 400 includes a mounting part 401, a pressure sensor 402, and a pressure bearing platform 403. The pressure sensor 402 is fixedly connected to the bottom surface of the mounting part 401, and the pressure bearing platform 403 is fixedly connected to the bottom surface of the pressure sensor 402. The mounting part 401 is fixedly connected to the connecting column 700. In this way, when the pressing head 400 presses down on the teeth, the pressure sensor 402 can detect the pressure in real time.

[0024] In a more refined manner, a protective mechanism is provided on the lifting frame 304. This protective mechanism includes a protective cover 501, a first spring 502, and a sliding column 503. Specifically, a sliding column 503 is slidably connected to the lifting frame 304, a protective cover 501 is fixedly connected to the sliding column 503, and a first spring 502 is sleeved on the sliding column 503. One end of the first spring 502 is fixedly connected to the protective cover 501, and the other end is fixedly connected to the lifting frame 304. A connecting column 700 passes through the protective cover 501, and the downward pressing head 400 is located at the protective cover 501. Inside the protective cover 501, after the lifting frame 304 descends, the protective cover 501 can cover the bearing mold table 200. Then the lifting frame 304 can continue to press down, using the compression of the first spring 502 to provide space for further descent. Finally, the pressing head 400 presses down on the teeth. In this way, the protective cover 501 can protect against the teeth breaking and flying, which could cause injury to the surrounding test personnel and improve the safety of the device. Of course, in order to facilitate the observation of changes in the teeth, at least one side of the protective cover 501 is provided with an observation window.

[0025] In addition, to ensure the stability of the bearing mold 200 and prevent it from shifting, the side wall of the bearing mold 200 abuts against the inner wall of the placement groove 101. However, the above structure will cause the bearing mold 200 to be very inconvenient to pick up due to increased friction and small picking area. To solve the above problem, a mounting cavity 102 is provided in the device 100. The mounting cavity 102 is connected to the placement groove 101 and has a moving hole. A pushing mechanism is fixedly connected in the mounting cavity 102. The pushing mechanism pushes the bearing mold 200 out of the placement groove 101 or increases the picking area.

[0026] In this embodiment, the pushing mechanism includes a pushing column 601, an electromagnet 602, a motion table 603, a second spring 604, and a column 605. Specifically, a column 605 is fixedly connected in the mounting cavity 102, a motion table 603 is slidably connected to the column 605, a second spring 604 is sleeved on the column 605, one end of the second spring 604 is fixedly connected to the motion table 603, and the other end is fixedly connected to the mounting cavity 102. An electromagnet 602 is fixedly connected in the mounting cavity 102, an adsorption platform is fixedly connected to the motion table 603 corresponding to the electromagnet 602, and a pushing column 601 is fixedly connected to the motion table 603, with the pushing column 601 passing through a motion hole.

[0027] When the electromagnet 602 is energized, it can attract the adsorption platform. At this time, the top surface of the pusher column 601 is flush with the bottom surface of the placement groove 101, and the second spring 604 is compressed, so that the bearing mold table 200 can be completely fitted into the placement groove 101.

[0028] When it is necessary to pick up the material, the electromagnet 602 can be de-energized, so that under the elastic force of the second spring 604, the motion table 603 drives the pusher column 601 to rise, thereby pushing the bearing mold table 200 upward.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A strength testing device for the production of dental ceramic teeth, comprising a machine base (100), a lifting mechanism, a lowering head (400), a bearing mold (200), and a protective mechanism, characterized in that: The device platform (100) is provided with a placement groove (101), and the bearing mold platform (200) is placed in the placement groove (101). The device platform (100) is fixedly connected with the lifting mechanism, which includes a lifting frame (304). A connecting column (700) is fixedly connected to the lifting frame (304). The bottom end of the connecting column (700) is fixedly connected with the pressing head (400). The pressing head (400) corresponds to the bearing mold platform (200). The lifting frame (304) is provided with a protective mechanism. The protective mechanism includes a protective cover (501), a first spring (502), and a sliding column (503). The sliding column (503) is slidably connected to the lifting frame (304), and the protective cover (501) is fixedly connected to the sliding column (503). The first spring (502) is sleeved on the sliding column (503). One end of the first spring (502) is fixedly connected to the protective cover (501), and the other end is fixedly connected to the lifting frame (304). The connecting column (700) passes through the protective cover (501), and the pressing head (400) is located inside the protective cover (501). The device base (100) is provided with an installation cavity (102), and the installation cavity (102) is connected to the placement groove (101) with a movement hole. A pushing mechanism is fixedly connected in the installation cavity (102), and the pushing mechanism includes a pushing column (601) which passes through the movement hole. The pushing mechanism also includes an electromagnet (602), a motion table (603), a second spring (604), and a column (605). The column (605) is fixedly connected in the mounting cavity (102). The motion table (603) is slidably connected on the column (605). The second spring (604) is sleeved on the column (605). One end of the second spring (604) is fixedly connected to the motion table (603), and the other end is fixedly connected to the mounting cavity (102). The electromagnet (602) is fixedly connected in the mounting cavity (102). An adsorption platform is fixedly connected to the motion table (603) corresponding to the electromagnet (602). The pushing column (601) is fixedly connected to the motion table (603). When the electromagnet (602) adsorbs the adsorption platform, the top surface of the pushing column (601) is flush with the bottom surface of the placement groove (101).

2. The strength testing device for the production of dental ceramic teeth according to claim 1, characterized in that: The side wall of the bearing mold platform (200) abuts against the inner wall of the placement groove (101).

3. The strength testing device for the production of dental ceramic teeth according to claim 1, characterized in that: The lifting mechanism also includes a frame (301), a telescopic cylinder (302), and a guide column (303). The frame (301) is fixedly connected to the machine base (100). The guide column (303) is slidably connected to the frame (301). The bottom end of the guide column (303) is fixedly connected to the lifting frame (304). The telescopic cylinder (302) is fixedly connected to the frame (301). The piston end of the telescopic cylinder (302) is fixedly connected to the lifting frame (304).

4. The strength testing device for the production of dental ceramic teeth according to claim 1, characterized in that: The pressure head (400) includes a mounting part (401), a pressure sensor (402), and a pressure bearing platform (403). The pressure sensor (402) is fixedly connected to the bottom surface of the mounting part (401), and the pressure bearing platform (403) is fixedly connected to the bottom surface of the pressure sensor (402).

5. The strength testing device for the production of dental ceramic teeth according to claim 1, characterized in that: The protective cover (501) has an observation window on at least one side.

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