Silicon nitride ceramic strength testing device

Abstract

The utility model relates to the technical field of silicon nitride ceramics, in particular to a silicon nitride ceramic strength testing device which comprises a base, a supporting rod used for supporting is movably connected to the upper end of the base, a spring A used for resetting is fixedly connected to the lower end of the supporting rod, and an operation table is fixedly connected to the end, away from the spring A, of the supporting rod. A drill bit is arranged at the lower end of the center of the operation table, a motor A used for driving is fixedly connected to the lower end of the drill bit, and a movable block used for limiting is arranged on the inner side of the operation table. And the electric push rod pushes the pressure plate to bend the ceramic wafer, so that the ceramic wafer is in contact with the drill bit, and various detections are carried out at the same time, so that the detection efficiency is greatly improved, the working efficiency is also improved, and the silicon nitride ceramic strength testing device is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to silicon nitride ceramic technical field especially relates to a silicon nitride ceramic strength test device. BACKGROUND

[0002] Silicon nitride ceramic is used in the front, high-end field such as aerospace, automobile manufacturing, electronic chip and so on with outstanding mechanical performance, like high hardness, excellent high temperature strength, excellent wear resistance and good chemical stability, and application continues to expand.

[0003] When detecting, the traditional test device needs to be manually fixed by the staff, and the fixed position is difficult to accurately, and when detecting the silicon nitride ceramic as a whole, the staff needs to switch the test device back and forth, so that the detection process is complicated, and the work efficiency is greatly reduced.

[0004] Therefore, the existing problems are studied and improved, and a silicon nitride ceramic strength test device is provided, which has reasonable structure design, high stability and considers all aspects of application, aiming to solve the problems and improve the practical value through the technology. UTILITY MODEL CONTENTS

[0005] The utility model discloses a clamping plate will be fixed automatically along with motor B drive screw rod and move the pull rod, and the ceramic piece is bent through the electric push rod and pushes the pressure plate, so that the ceramic piece contacts the drill bit, and a plurality of detections are carried out simultaneously, so that the detection efficiency is greatly improved, and the work efficiency is also improved, and a silicon nitride ceramic strength test device is realized.

[0006] In order to realize the above-mentioned purpose, the utility model discloses the following technical scheme: a silicon nitride ceramic strength test device, including the base, the base upper end swing joint is used for supporting the support rod, the support rod lower end fixed connection is used for the spring A of reset, the support rod is away from the spring A and is fixed connection has the operation platform of one end, the operation platform center place lower end is provided with the drill bit, the drill bit lower end fixed connection is used for the motor A of drive, the operation platform inner side is provided with the movable block for limiting, the movable block lower end fixed connection is used for the spring B of telescopic, the spring B one end fixed connection has the connecting block of controlling spring B and lifts, the operation platform both ends are provided with the clamping plate for stretching, the clamping plate inner side swing joint is used for the pull rod of clamping, the clamping plate inner side fixed connection has the magnetic attraction piece for fixed, the pull rod is away from the clamping and is provided with the screw rod of one end connection, the screw rod one end fixed connection has the motor B, the base one side is provided with the fixed rod for fixed, the fixed rod upper end fixed connection has the electric push rod for lifting, the fixed rod lower end fixed connection has the pressure plate for pressure.

[0007] Preferably, the support rod is provided with four groups at the upper end of the base, the lower end of the four groups of support rods connected with the base is a hollow slot, the lower end of the four groups of support rods is connected with spring A, the other end of the spring A is fixedly connected with the base, and the operation table is fixed by being connected with the four groups of support rods.

[0008] Preferably, a through hole is formed at the center of the operation table, a drill bit is located inside the through hole at the center, the initial position of the drill bit is not flush with the operation table, the height of the drill bit is lower than that of the operation table, and the tip of the drill bit is relatively blunt, the motor A is fixedly connected at the upper end of the base, and the driving end of the motor A is connected with the drill bit.

[0009] Preferably, the movable block is movably connected in the operation table, the position where the movable block is installed in the operation table is hollow, the movable block is connected in the operation table by spring B, the other end of the spring B is fixedly connected with the operation table, the number of the movable blocks is four, the four movable blocks are connected with the connecting block, and the connecting block is located at the position close to the inner side of the operation table.

[0010] Preferably, the clamping plate is provided with four groups at both ends of the operation table, the clamping plate is composed of two groups of upper and lower clamping plates, the inner side of the clamping plate connected with the pull rod is designed as an inclined surface, the surface of the pull rod in contact with the clamping plate is also designed as an inclined surface, the magnetic attraction block is connected with the clamping plate at the lower end, and the magnetic attraction block has a certain adsorption force with the operation table.

[0011] Preferably, the threaded rod penetrates one end of the pull rod, and the end close to the outer side of the threaded rod is connected with the driving end of the motor B, the motor B is provided with two groups, the lower end of the two groups of motors B is provided with a fixed ring, and the motor B is fixedly connected with the base by the fixed ring.

[0012] Preferably, the fixed rod is fixedly connected at one side of the base, extends to the upper end of the operation table, the upper end of the fixed rod is fixedly connected with the electric push rod, the inner side of the electric push rod is provided with a push rod, the push rod is aligned with the center of the operation table, and the pressure plate is fixedly connected with the lower end of the push rod.

[0013] The utility model discloses the following beneficial effects: when using, through motor B drive screw rod rotation and drive draw bar removal, when draw bar removal, because the inside of clamping plate is bevel, and from small to big, so that draw bar moves to rear end and will constantly expand clamping plate rear end through bevel, and the upper and lower two groups of clamping plate are swing joint through one side connecting rod, so that when the rear end of clamping plate expands constantly, the front end of clamping plate will contract constantly, so as to fix ceramic piece, and when draw bar removal, clamping plate can be moved in advance, so that the initial position of two clamping plates is fixed through the adsorption of magnetic block and operation table, after fixing ceramic piece, when draw bar exerts enough pressure on ceramic piece, will pull clamping plate whole removal, and with the removal of draw bar, the clamping force of clamping plate will gradually increase, so that the clamping plate of both ends stretches ceramic piece, detects its stretchability, makes clamping plate through the removal of draw bar automatic clamping, so as to reduce the cumbersome step, makes its detection efficiency faster. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is whole appearance view of a kind of silicon nitride ceramic strength test device proposed in the utility model;

[0015] Figure 2 It is internal view of a kind of silicon nitride ceramic strength test device proposed in the utility model;

[0016] Figure 3 It is sectional view of a kind of silicon nitride ceramic strength test device proposed in the utility model;

[0017] Figure 4 It is sectional view of a kind of silicon nitride ceramic strength test device proposed in the utility model;

[0018] Figure 5 It is sectional view of a kind of silicon nitride ceramic strength test device proposed in the utility model.

[0019] Legend:

[0020] 1, base;2, support rod;3, spring A;4, operation table;5, drill bit;6, motor A;7, movable block;8, spring B;9, connecting block;10, clamping plate;11, draw bar;12, magnetic block;13, screw rod;14, motor B;15, fixed rod;16, electric push rod;17, pressure plate. DETAILED DESCRIPTION

[0021] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, and in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] Referring to Figures 1-5 The utility model provides an embodiment: a kind of silicon nitride ceramic strength test device, including pedestal 1, the upper end of pedestal 1 is movably connected with the support rod 2 for supporting, the lower end of support rod 2 is fixedly connected with spring A 3 for resetting, the end of support rod 2 away from spring A 3 is fixedly connected with operating table 4, operating table 4 center place lower end is provided with drill bit 5, the lower end of drill bit 5 is fixedly connected with motor A 6 for driving, operating table 4 inner side is provided with movable block 7 for limiting, movable block 7 lower end is fixedly connected with spring B 8 for telescopic, the one end of spring B 8 is fixedly connected with connecting block 9 for controlling spring B 8 lifting, operating table 4 both ends are provided with clamping plate 10 for stretching, clamping plate 10 inner side is movably connected with pull rod 11 for clamping, clamping plate 10 inner side is fixedly connected with magnetic attraction piece 12 for fixing, the end of pull rod 11 away from clamping plate 10 connection is provided with threaded rod 13, the one end of threaded rod 13 is fixedly connected with motor B 14, one side of pedestal 1 is provided with fixed rod 15 for fixing, the upper end of fixed rod 15 is fixedly connected with electric push rod 16 for lifting, the lower end of fixed rod 15 is fixedly connected with pressure plate 17 for compacting.

[0024] In an optional embodiment: the support rod 2 is provided with four groups at the upper end of the base 1, the lower end of the four groups of support rods 2 connected with the base 1 is a hollow slot, the lower end of the four groups of support rods 2 is connected with a spring A3, the other end of the spring A3 is fixedly connected with the base 1, the operating table 4 is fixed by being connected with the four groups of support rods 2, the four groups of support rods 2 make the stress more uniform when the operating table 4 is pressed, and because the lower end of the support rod 2 is connected with the spring A3, the support rod 2 will move downward when the operating table 4 is pressed.

[0025] In an optional embodiment: the operating table 4 is provided with a through hole at the center, the drill bit 5 is located inside the through hole at the center, the initial position of the drill bit 5 is not flush with the operating table 4, the height of the drill bit 5 is lower than that of the operating table 4, and the tip of the drill bit 5 is blunt, the motor A6 is fixedly connected to the upper end of the base 1, and the driving end is connected with the drill bit 5, after the operating table 4 moves downward, the drill bit 5 will contact the ceramic sheet, thereby polishing the ceramic sheet, so as to test whether the wear resistance of the ceramic sheet meets the requirements, and because the drill bit 5 is blunt, the ceramic sheet will not be damaged by the tip during use.

[0026] In an optional embodiment: the movable block 7 is movably connected inside the operating table 4, the position where the movable block 7 is installed inside the operating table 4 is hollow, the movable block 7 is connected inside the operating table 4 through a spring B8, the other end of the spring B8 is fixedly connected with the operating table 4, the movable block 7 is provided with four groups, the four groups of movable blocks 7 are connected with the connecting block 9, and the connecting block 9 is located at the position close to the inner side of the operating table 4, the initial position of the four groups of movable blocks 7 protrudes upward, and the size of the four groups of movable blocks 7 inside matches the size of the ceramic sheet, so that the worker can place the ceramic sheet according to the position of the four groups of movable blocks 7 during use, thereby positioning it, and because the connecting block 9 is connected with the movable block 7 and close to the inner side, the ceramic sheet will contact the connecting block 9 when it is placed down, thereby exerting a certain weight on the four groups of connecting blocks 9, thereby promoting the downward movement of the connecting block 9, because the movable block 7 is connected with the connecting block 9, so when the connecting block 9 descends, it drives the movable block 7 to descend synchronously, after the ceramic sheet is picked up, the connecting block 9 and the movable block 7 will automatically reset due to the spring B8 at the lower end, thereby making the subsequent use more convenient, thereby improving the detection efficiency.

[0027] In an optional embodiment: the clamping plate 10 is provided with four groups at both ends of the operating table 4, which is composed of upper and lower groups, and the inner side of the clamping plate 10 is designed as an inclined surface connected with the pull rod 11, and the surface of the pull rod 11 in contact with the clamping plate 10 is also inclined, and the magnetic block 12 is connected with the lower end of the clamping plate 10, which has a certain adsorption force with the operating table 4, and in use, the threaded rod 13 is driven to rotate by the motor B14 to drive the pull rod 11 to move, and when the pull rod 11 moves, the inner side of the clamping plate 10 is inclined and gradually increases from small to large, so that when the pull rod 11 moves to the rear end, it will continuously expand the rear end of the clamping plate 10 through the inclined surface, and the upper and lower groups of the clamping plate 10 are movably connected through the connecting rod on one side, so that when the rear end of the clamping plate 10 continuously expands, the front end of the clamping plate 10 will continuously shrink, thereby fixing the ceramic sheet, and when the pull rod 11 moves, it may drive the clamping plate 10 to move in advance, so that the initial position of the two clamping plates 10 is fixed by the magnetic block 12 and the operating table 4 to generate a certain adsorption force, and after the ceramic sheet is fixed, when the pull rod 11 applies enough pressure to the ceramic sheet, it will pull the clamping plate 10 to move as a whole, and with the movement of the pull rod 11, the clamping force of the clamping plate 10 will gradually increase, so that the clamping plates 10 at both ends stretch the ceramic sheet to detect its stretchability, so that the clamping plate 10 automatically clamps through the movement of the pull rod 11, thereby reducing the cumbersome steps and making the detection more efficient.

[0028] In an optional embodiment: the threaded rod 13 penetrates one end of the pull rod 11, and the end close to the outer side is connected to the driving end of the motor B14. The motor B14 is provided with two groups, and the lower end of each group is provided with a fixed ring. The motor B14 is connected with the base 1 through the fixed ring for fixation. The threaded rod 13 is driven by the motor B14 to make the stretching force accurately used in different degrees, thereby adapting to the variety of detection.

[0029] In an optional embodiment: the fixed rod 15 is fixedly connected to one side of the base 1 and extends to the upper end of the operating table 4. The electric push rod 16 is fixedly connected to the upper end of the fixed rod 15. The electric push rod 16 is provided with a push rod inside, which is aligned with the center of the operating table 4. The lower end of the push rod is fixedly connected with the pressing plate 17. During detection, the electric push rod 16 will first push the pressing plate 17 down, and when the pressing plate 17 contacts the ceramic sheet, it will stop descending. At this time, the motor B14 will drive the threaded rod 13 to rotate to clamp the two ends of the ceramic sheet. After clamping, the electric push rod 16 will push the pressing plate 17 downward again. Since the two ends of the ceramic sheet are fixed by the clamping plate 10, the ceramic sheet will be bent when the pressing plate 17 continuously presses down. Since the pressing plate 17 is located at the center, the bent part of the ceramic sheet will contact the drill bit 5, thereby simultaneously performing multiple detection methods, thereby greatly improving the detection efficiency and work efficiency.

[0030] Working principle and flow: the staff will need to detect the ceramic piece through the initial position of four sets of movable block 7 placement, in the ceramic piece placed on the end of the operating table 4, movable block 7 will automatically shrink down, at this time start the device, electric push rod 16 will push the pressure plate 17 down, in the pressure plate 17 and ceramic contact will stop down, at this time the motor B14 will drive screw rod 13 rotation pull rod 11 move, in the pull rod 11 move will gradually tighten the one end of the ceramic piece close to the clamping plate 10, so as to fix the ceramic piece, after fixing, the pressure plate 17 will continue to drop, at this time the pressure plate 17 will push the ceramic piece bending, so as to cause the extrusion of the operating table 4, so that the operating table 4 will move down, make the ceramic piece and drill bit 5 contact.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A silicon nitride ceramic strength testing device, comprising a base (1), characterized in that: The upper end of the base (1) is movably connected to a support rod (2) for support. The lower end of the support rod (2) is fixedly connected to a spring A (3) for resetting. The end of the support rod (2) away from the spring A (3) is fixedly connected to an operating table (4). A drill bit (5) is provided at the lower end of the center of the operating table (4). The lower end of the drill bit (5) is fixedly connected to a motor A (6) for driving. A movable block (7) for limiting is provided on the inner side of the operating table (4). The lower end of the movable block (7) is fixedly connected to a spring B (8) for extension and retraction. One end of the spring B (8) is fixedly connected to a connecting block (9) for controlling the lifting and lowering of the spring B (8). The operating table (4) is provided with clamping plates (10) for stretching at both ends. A pull rod (11) for clamping is movably connected to the inner side of the clamping plate (10). A magnetic block (12) for fixing is fixedly connected to the inner side of the clamping plate (10). A threaded rod (13) is provided at the end of the pull rod (11) away from the clamping plate (10). A motor B (14) is fixedly connected to one end of the threaded rod (13). A fixing rod (15) for fixing is provided on one side of the base (1). An electric push rod (16) for lifting is fixedly connected to the upper end of the fixing rod (15). A pressure plate (17) for pressing is fixedly connected to the lower end of the fixing rod (15).

2. The silicon nitride ceramic strength testing device according to claim 1, characterized in that: The support rod (2) is provided in four sets at the upper end of the base (1). The lower end of the connection between the four sets of support rods (2) and the base (1) is a hollow groove. The lower end of each of the four sets of support rods (2) is connected to a spring A (3). The other end of the spring A (3) is fixedly connected to the base (1). The operating table (4) is fixed by connecting to the four sets of support rods (2).

3. The silicon nitride ceramic strength testing device according to claim 1, characterized in that: The operating table (4) has a through hole at its center, and the drill bit (5) is located inside the through hole at its center. The initial position of the drill bit (5) is not flush with the operating table (4), and the drill bit (5) is lower than the height of the operating table (4). The tip of the drill bit (5) is relatively blunt. The motor A (6) is fixedly connected to the upper end of the base (1), and its driving end is connected to the drill bit (5).

4. The silicon nitride ceramic strength testing device according to claim 1, characterized in that: The movable block (7) is movably connected inside the operating table (4). The position where the movable block (7) is installed inside the operating table (4) is hollow. The movable block (7) is connected inside the operating table (4) by a spring B (8). The other end of the spring B (8) is fixedly connected to the operating table (4). There are four sets of movable blocks (7). All four sets of movable blocks (7) are connected to the connecting block (9). The connecting block (9) is located on the operating table (4) near the inner side.

5. The silicon nitride ceramic strength testing device according to claim 1, characterized in that: The clamping plate (10) is provided in four sets at both ends of the operating table (4). The clamping plate (10) consists of two sets, upper and lower. The inner side of the clamping plate (10) is designed with an inclined surface at the connection with the pull rod (11). The surface of the pull rod (11) in contact with the clamping plate (10) is also an inclined surface. The magnetic block (12) is connected to the lower clamping plate (10) and has a certain adsorption force with the operating table (4).

6. The silicon nitride ceramic strength testing device according to claim 1, characterized in that: The threaded rod (13) passes through one end of the pull rod (11), and its outer end is connected to the drive end of the motor B (14). There are two sets of motor B (14), and each set of motor B (14) has a fixing ring at its lower end. The motor B (14) is fixed to the base (1) through the fixing ring.

7. The silicon nitride ceramic strength testing device according to claim 1, characterized in that: The fixing rod (15) is fixedly connected to one side of the base (1) and extends to the upper end of the operating table (4). The upper end of the fixing rod (15) is fixedly connected to the electric push rod (16). The electric push rod (16) has a push rod inside it, and the push rod is aligned with the center of the operating table (4). The pressure plate (17) is fixedly connected to the lower end of the push rod.

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