Deciduous tooth fatigue strength testing device

Abstract

The utility model relates to a deciduous tooth fatigue strength testing device which comprises a machine table, a mounting frame, a driving assembly, an adapter, a pressure sensor, a stamping head and a clamping table assembly, the clamping table assembly comprises a fixed base, a middle plate, a clamping piece and an adjusting screw rod, and the clamping piece and the middle plate are combined to form a clamping groove corresponding to the stamping head; the utility model mainly aims at placing a deciduous tooth sample on the middle plate when the deciduous tooth sample is installed, rotating the adjusting screw rod to enable the two groups of clamping pieces to move oppositely until the deciduous tooth sample is clamped in the clamping groove, and arranging the punching head right above the clamping groove, so that the deciduous tooth sample is centered after being clamped, the steps of installing the deciduous tooth sample are simplified, and the installation efficiency is improved. The test efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of testing devices, and in particular to a device for testing the fatigue strength of deciduous teeth. Background Technology

[0002] The deciduous tooth fatigue resistance testing device is used to perform pressure fatigue testing on deciduous tooth samples. The principle is to fix the deciduous tooth sample directly under the punch head, and the punch head applies a specified pressure to the deciduous tooth sample by reciprocating, thereby obtaining the compressive strength parameters of the sample material. This provides important parameters for selecting denture materials and improving denture quality. However, due to the variety of shapes of deciduous tooth samples, it is necessary to fix the deciduous tooth sample directly under the punch head with a clamp before testing. This also means that the deciduous tooth needs to be readjusted before each use, making its installation difficult. Utility Model Content

[0003] To overcome the shortcomings of the prior art, the technical solution adopted by this utility model is: a deciduous tooth fatigue strength testing device, including a machine base, a mounting frame, a drive assembly, an adapter, a pressure sensor, a punch head, and a clamping assembly. The machine base is connected to the drive assembly through the mounting frame. The output end of the drive assembly is snapped with the adapter. The two ends of the pressure sensor are respectively threaded to the adapter and the punch head. The machine base is located at the bottom of the punch head and connected to the clamping assembly. The clamping assembly includes a fixed base, a middle plate, clamping members, and an adjusting screw. The fixed base is connected to the middle plate for placing the workpiece. The fixed base is slidably connected to the clamping members on both sides of the middle plate. The fixed base is rotatably connected to the adjusting screw for controlling the two sets of clamping members to move in opposite directions. The clamping members and the middle plate combine to form a slot corresponding to the punch head.

[0004] Using the above technical solution, since the punch head is located directly above the slot, and a pressure sensor is installed between the punch head and the drive assembly, the drive assembly controls the punch head to move up and down and applies a specified pressure to the deciduous tooth sample, thereby testing the fatigue strength of the deciduous tooth sample. When installing the deciduous tooth sample, the deciduous tooth sample is placed on the intermediate plate, and the two sets of clamping parts are moved towards each other by rotating the adjusting screw until the deciduous tooth sample is clamped in the slot. The method of installing the deciduous tooth sample is simple and quick.

[0005] The present invention is further configured such that the two sides of the adjusting screw are connected to slide rods that are slidably connected to the clamping member, one end of the adjusting screw passes through the base and is provided with a knurled part for manual rotation, the clamping member is provided with a side plate, the side plate abuts against the upper surface of the middle plate, the side plate is provided with a groove, and the groove and the upper surface of the middle plate combine to form the slot.

[0006] Furthermore, the adjusting screw is a double-threaded screw, and the clamping member moves in opposite or opposite directions by adjusting the double-threaded screw.

[0007] Furthermore, the adjusting screw is provided with a knurled part on the outside of the fixed base.

[0008] Using the above technical solution, the adjusting screw is provided with a left-hand helix and a right-hand helix at both ends of the middle plate. The clamping member is engaged with the left-hand helix / right-hand helix. When the adjusting screw is rotated through the knurled part, the clamping member will move along the slide rod in opposite directions, thus satisfying the manual control of the clamping platform assembly.

[0009] The present invention is further configured such that the driving assembly includes a push rod motor, a base plate, a connecting column, a transmission plate, and a column. The push rod motor is fixedly connected to the mounting frame through the base plate. The output end of the push rod motor is connected to the adapter through the transmission plate. The transmission plate is fixedly connected to the columns on both sides of the push rod motor, and the columns are slidably connected to the base plate through linear bearings.

[0010] The above technical solution incorporates a built-in screw and nut assembly in the push rod motor. The motor drives the screw to rotate, causing the nut assembly to move up and down. The nut assembly connects to the transmission plate and controls the up and down movement of the transmission plate. The column restricts the movement of the transmission plate, preventing it from rotating during the movement and ensuring smooth and stable transmission.

[0011] The present invention is further configured such that the adapter includes an upper flange, a lower flange, a gasket, a sleeve, a locking screw, and a locking nut; the transmission plate is provided with threaded holes corresponding to the upper flange and the lower flange, and the upper flange and the lower flange are combined to form a countersunk hole for installing screws; the screw passes through the transmission plate and the gasket in sequence and is threadedly connected to the sleeve; the sleeve is provided with a T-slot for engaging the locking screw; and the locking screw is threadedly connected to a locking nut for locking; the pressure sensor is threadedly connected to the locking screw.

[0012] Furthermore, the locking screw is provided with an installation part, an upper threaded part and a lower threaded part from top to bottom. The installation part is engaged with a T-slot. The T-slot is provided with an arc surface for abutting the upper threaded part, and the arc surface is coaxially distributed in the countersunk hole. The locking nut and the pressure sensor are respectively threaded to the upper threaded part and the lower threaded part.

[0013] Furthermore, the transmission plate includes a middle section and bent sections on both sides of the middle section. The middle section has a first through hole for accommodating screws, and the threaded holes are circumferentially distributed around the first through hole. The bent sections have a second through hole for mounting columns.

[0014] Using the above technical solution, when installing the locking screw, the locking screw is inserted into the T-slot through the mounting part until the upper thread part abuts against the arc surface. The limiting effect of the arc surface ensures that the locking screw is coaxially distributed with the output end of the push rod motor. The locking screw is then fixed to the sleeve by the locking nut, which facilitates the replacement of different models of pressure sensors.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Since the punch head is located directly above the slot, a pressure sensor is installed between the punch head and the drive assembly. The drive assembly controls the punch head to move up and down and applies a specified pressure to the deciduous tooth sample, thereby testing the fatigue strength of the deciduous tooth sample.

[0017] 2. When installing the deciduous tooth sample, place the deciduous tooth sample on the middle plate, and rotate the adjusting screw to make the two sets of clamping parts move towards each other until the deciduous tooth sample is clamped in the slot. The punch head is set directly above the slot, so that the deciduous tooth sample is centered after clamping, which simplifies the steps of installing the deciduous tooth sample and improves the testing efficiency.

[0018] The embodiments of this utility model will be further described below with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is the front view of the present invention;

[0020] Figure 2 This is a schematic diagram of the clamping assembly of this utility model when it is clamped.

[0021] Figure 3 This is a schematic diagram of the clamp assembly of this utility model when it is opened;

[0022] Figure 4 This is a perspective view of the disassembled box of this utility model;

[0023] Figure 5 This is an exploded view of the structure of the adapter of this utility model;

[0024] Wherein: 1-Machine base, 2-Mounting frame, 3-Drive assembly, 4-Adapter, 5-Pressure sensor, 6-Punching head, 7-Clamping assembly, 8-Box, 11-Slot, 31-Push rod motor, 32-Base plate, 33-Transmission plate, 331-Threaded hole, 332-Intermediate section, 333-Bending section, 334-First through hole, 335-Second through hole, 34-Column, 41-Upper flange, 4 2 - Lower flange, 43 - Gasket, 44 - Sleeve, 441 - T-slot, 442 - Arc surface, 45 - Locking screw, 451 - Mounting part, 452 - Upper thread part, 453 - Lower thread part, 46 - Locking nut, 47 - Screw, 71 - Fixed base, 72 - Intermediate plate, 73 - Clamping part, 74 - Adjusting screw, 75 - Slide rod, 76 - Knurled part, 77 - Side plate, 78 - Groove; Detailed Implementation

[0025] like Figure 1-3As shown, this embodiment provides a deciduous tooth fatigue strength testing device, including a machine base 1, a mounting frame 2, a drive assembly 3, an adapter 4, a pressure sensor 5, a punch head 6, and a clamping assembly 7. The machine base 1 is connected to the drive assembly 3 through the mounting frame 2. The output end of the drive assembly 3 is snapped with the adapter 4. The two ends of the pressure sensor 5 are respectively threaded to the adapter 4 and the punch head 6. The machine base 1 is located at the bottom of the punch head 6 and connected to the clamping assembly 7. The clamping assembly 7 includes a fixed base 71, an intermediate plate 72, clamping members 73, and an adjusting screw 74. The fixed base 71 is connected to the intermediate plate 72 for placing workpieces. The fixed base 71 is slidably connected to the clamping members 73 on both sides of the intermediate plate 72. The fixed base 71 is rotatably connected to the adjusting screw 74 for controlling the two sets of clamping members 73 to move in opposite directions. The clamping members 73 and the intermediate plate 72 combine to form a slot 11 corresponding to the punch head 6.

[0026] In this embodiment, the adjusting screw 74 is connected to slide rods 75 on both sides, which are slidably connected to clamping member 73. One end of the adjusting screw 74 passes through the base and is provided with a knurled part 76 for manual rotation. The clamping member 73 is provided with a side plate 77, which abuts against the upper surface of the middle plate 72. The side plate 77 is provided with a groove 78, and the groove 78 and the upper surface of the middle plate 72 combine to form a slot 11. The adjusting screw 74 is a double-threaded screw. The two ends of the adjusting screw 74 located on the middle plate 72 are respectively provided with a left-hand helix and a right-hand helix. The clamping member 73 is engaged with the left-hand helix / right-hand helix. When the adjusting screw 74 is rotated through the knurled part 76, the clamping member 73 will move along the slide rod 75 in opposite directions. The adjusting screw 74 is provided with a knurled part 76 on the outside of the fixed base 71.

[0027] Combination Figure 4 As shown, in this embodiment, the drive assembly 3 includes a push rod motor 31, a base plate 32, a transmission plate 33, and columns 34. The push rod motor 31 is fixedly connected to the mounting bracket 2 via the base plate 32. The output end of the push rod motor 31 is connected to an adapter 4 via the transmission plate 33. The transmission plate 33 is located on both sides of the push rod motor 31 and the columns 34 are fixedly connected to the base plate 32 via linear bearings. The base plate 32 is fixedly connected to a housing 8 for protecting the drive assembly 3. The push rod motor 31 has a built-in screw and nut assembly. The motor drives the screw to rotate, causing the nut assembly to move up and down. The nut assembly is connected to the transmission plate 33 and controls the up and down movement of the transmission plate 33.

[0028] Combination Figure 5As shown, in this embodiment, the adapter 4 includes an upper flange 41, a lower flange 42, a gasket 43, a sleeve 44, a locking screw 45, and a locking nut 46. The transmission plate 33 is provided with threaded holes 331 corresponding to the upper flange 41 and the lower flange 42. The inner hole of the upper flange 41 and the inner hole of the lower flange 42 are combined to form a countersunk hole for installing a screw 47. The screw 47 passes through the transmission plate 33 and the gasket 43 in sequence and is threadedly connected to the sleeve 44. The sleeve 44 is provided with a T-slot 441 for engaging the locking screw 45. The locking screw 45 is threadedly connected to the locking nut 46 for locking. The pressure sensor 5 is threadedly connected to the locking screw 45. The locking screw 45 is divided into sections from top to bottom. The transmission plate 33 is provided with a mounting part 451, an upper threaded part 452, and a lower threaded part 453. The mounting part 451 is engaged with a T-slot 441. The T-slot 441 has an arc surface 442 for abutting the upper threaded part 452, and the arc surface 442 is coaxially distributed in the countersunk hole. The locking nut 46 and the pressure sensor 5 are respectively threaded to the upper threaded part 452 and the lower threaded part 453. The transmission plate 33 includes a middle part 332 and a bent part 333 on both sides of the middle part 332. The middle part 332 has a first through hole 334 for accommodating the screw 47. The threaded holes 331 are circumferentially distributed around the first through hole 334. The bent part 333 has a second through hole 335 for mounting the column 34.

[0029] The working principle of this utility model is as follows: when installing the deciduous tooth sample, the deciduous tooth sample is placed on the intermediate plate 72. By rotating the adjusting screw 74 through the knurled part 76, the two sets of clamping parts 73 move in opposite directions until the groove 78 fixes the deciduous tooth sample, so that the deciduous tooth sample is positioned directly below the punch head 6. A pressure sensor 5 is provided between the punch head 6 and the push rod motor 31. The push rod motor 31 controls the punch head 6 to move up and down. After the punch head 6 applies a specified pressure to the deciduous tooth sample, it resets. The above actions are repeated to meet the requirements for testing the compressive fatigue strength of the deciduous tooth sample.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A deciduous tooth fatigue strength testing device, comprising a machine table (1), a mounting frame (2), a driving assembly (3), an adapter (4), a pressure sensor (5), a stamping head (6) and a clamping table assembly (7), the driving assembly (3) is connected with the mounting frame (2), the output end of the driving assembly (3) is clamped with the adapter (4), the two ends of the pressure sensor (5) are respectively threaded with the adapter (4) and the stamping head (6), and the bottom of the machine table (1) is connected with the clamping table assembly (7), characterized in that, The clamping bench assembly (7) comprises a fixed base (71), an intermediate plate (72), clamping pieces (73) and adjusting screws (74), the fixed base (71) is connected with the intermediate plate (72) for placing workpieces, and the fixed base (71) is slidingly connected with the clamping pieces (73) on both sides of the intermediate plate (72), and the fixed base (71) is rotatably connected with the adjusting screws (74) for controlling the two groups of clamping pieces (73) to move towards each other or in opposite directions, and the clamping pieces (73) and the intermediate plate (72) combine to form a clamping groove (11) corresponding to the stamping head (6).

2. A primary tooth fatigue strength testing device according to claim 1, characterized in that: The adjusting screws (74) are connected with sliding rods (75) on both sides, the clamping pieces (73) are slidingly connected with the sliding rods (75), the clamping pieces (73) are provided with side plates (77) abutting against the upper surface of the intermediate plate (72), the side plates (77) are provided with grooves (78), and the grooves (78) and the upper surface of the intermediate plate (72) combine to form the clamping groove (11).

3. A primary tooth fatigue strength testing device according to claim 2, characterized in that: The adjusting screws (74) are double-threaded screws, and the clamping pieces (73) move towards each other or in opposite directions through the adjustment of the double-threaded screws.

4. A primary tooth fatigue strength testing device according to claim 3, characterized in that: The adjusting screws (74) are provided with knurled portions (76) on the outer sides of the fixed base (71).

5. A primary tooth fatigue strength testing device according to claim 1, characterized in that: The driving assembly (3) comprises a push rod motor (31), a bottom plate (32), a transmission plate (33) and a stand column (34), the push rod motor (31) is fixedly connected to the mounting frame (2) through the bottom plate (32), the output end of the push rod motor (31) is connected with the adapter (4) through the transmission plate (33), the transmission plate (33) is fixedly connected with the stand column (34) on both sides of the push rod motor (31), and the stand column (34) is slidingly connected to the bottom plate (32) through a linear bearing.

6. A primary tooth fatigue strength testing device according to claim 5, characterized in that: The adapter (4) comprises an upper flange plate (41), a lower flange plate (42), a pad (43), a sleeve (44), a locking screw (45) and a locking nut (46), the transmission plate (33) is provided with threaded holes (331) corresponding to the upper flange plate (41) and the lower flange plate (42), and the upper flange plate (41) and the lower flange plate (42) combine to form countersunk holes for installing screws, the sleeve (44) is threadedly connected with the pad (43) in sequence through the screws passing through the transmission plate (33), the pad (43) is provided with a T-shaped groove (441) for clamping the locking screw (45), and the locking screw (45) is threadedly connected with the locking nut (46) for locking, and the pressure sensor (5) is threadedly connected to the locking screw (45).

7. A primary tooth fatigue strength testing device according to claim 6, characterized in that: The locking screw (45) is provided with a mounting portion (451), an upper threaded portion (452) and a lower threaded portion (453) from top to bottom, the mounting portion (451) is clamped in the T-shaped groove (441), the T-shaped groove (441) is provided with a circular arc surface (442) for abutting against the upper threaded portion (452), and the circular arc surface (442) is coaxially distributed in the countersunk hole, and the locking nut (46) and the pressure sensor (5) are threadedly connected to the upper threaded portion (452) and the lower threaded portion (453), respectively.

8. A primary tooth fatigue strength testing device according to claim 7, characterized in that: The transmission plate (33) comprises a middle part (332) and bending parts (333) arranged on both sides of the middle part (332), the middle part (332) is provided with a first through hole (334) for accommodating a screw, the threaded holes (331) are circumferentially distributed around the first through hole (334), and the bending parts (333) are provided with second through holes (335) for mounting the stand columns (34).

Images