Breakage strength testing machine for high-temperature ceramic substrate

Abstract

The invention relates to the technical field of ceramic substrate detection, in particular to a high-temperature ceramic substrate bursting strength testing machine which comprises a high-temperature box, a positioning mechanism and a pressure detection mechanism, a mounting plate is arranged in the high-temperature box, the positioning mechanism comprises a first clamping plate, a first power assembly, a second clamping plate and a second power assembly, and an avoiding opening is formed in the mounting plate; first clamping plates are arranged on the left side and the right side of the receding opening, the first power assembly drives the first clamping plates on the two sides to move towards the receding opening at the same time, second clamping plates are arranged on the front side and the rear side of the receding opening, and the second power assembly drives the second clamping plates on the two sides to move towards the receding opening at the same time. Connecting blocks are arranged on the two sides of the second clamping plate, connecting grooves are formed in the side wall of the first clamping plate, the connecting blocks are in sliding fit with the connecting grooves, and first springs are connected into the connecting blocks and the second clamping plate. The mounting position of the ceramic substrate can be always located in the center area of the avoiding opening, mounting of ceramic substrates of different sizes can be adapted, and the precision of subsequent pressure detection is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic substrate detection, in particular to a high-temperature ceramic substrate bursting strength testing machine. Background Art

[0002] In the production and application of ceramic substrates, evaluating their burst strength is a key link to ensure product quality and reliability. Especially in high temperature environments, ceramic substrates may be subjected to complex mechanical stress and thermal stress, and the basic burst strength of ceramics becomes an important indicator to measure their performance.

[0003] Chinese patent CN218782135U discloses a bending strength detection device for ceramic substrates, in which the ends of two supporting structures are extended into the slide grooves on the sides of the fixed plate, and the ends of the compression springs of the adjustment mechanism are abutted against the sides of the ends of the supporting structures. Therefore, during the detection process, when the ceramic substrate is placed between the two supporting structures, the forces applied to the supporting structures are equal, so that the center of the ceramic substrate is quickly aligned with the movable pressure rod, greatly improving the detection efficiency.

[0004] However, this patent still has the following problems: when installing the ceramic substrate, only the left and right sides of the ceramic substrate can be positioned. Since the front and back sides of the ceramic plate are not limited, the position of the ceramic substrate will deviate during installation, resulting in the center position of the ceramic substrate being unable to be located on the same axis as the movable pressure rod, affecting the detection results. Summary of the invention

[0005] The purpose of the present application is to provide a high-temperature ceramic substrate burst strength testing machine, so that the installation position of the ceramic substrate is always located in the central area of ​​the avoidance port, thereby improving the accuracy of subsequent pressure detection; through the cooperation of the connecting block and the first spring, the first clamping plate and the second clamping plate on both sides will not interfere with each other when moving synchronously and can adapt to the installation of ceramic substrates of different sizes.

[0006] To achieve the above-mentioned objectives, the present application provides a high-temperature ceramic substrate burst strength testing machine, including a high-temperature box, a positioning mechanism and a pressure detection mechanism, wherein a mounting plate is arranged in the high-temperature box, the positioning mechanism is arranged on the mounting plate, and the pressure detection mechanism is arranged above the mounting plate; the positioning mechanism includes a first clamping plate, a first power assembly, a second clamping plate and a second power assembly, a avoidance opening is arranged on the mounting plate, the avoidance opening is arranged with the first clamping plates on both sides along the transverse direction of the mounting plate, the first power assembly drives the first clamping plates on both sides to move toward the avoidance opening at the same time, the avoidance opening is arranged with the second clamping plates on both sides along the longitudinal direction of the mounting plate, and the second power assembly drives the second clamping plates on both sides to move toward the avoidance opening at the same time; connecting blocks are arranged on both sides of the second clamping plate, a connecting groove is opened on the side wall of the first clamping plate, the connecting block is slidably matched with the connecting groove, and a first spring is connected between the connecting block and the inside of the second clamping plate.

[0007] As a further solution of the present invention: the first power assembly includes a first motor, a mounting seat and a first screw rod, the first motor is arranged on the side wall of the mounting seat, the output end of the first motor passes through the side wall of the mounting seat and is connected to the first screw rod, a first partition ring is arranged in the middle position of the first screw rod, the thread teeth on both sides of the first partition ring are in opposite directions, a first slide groove is opened on the mounting plate, a first slider is arranged at the bottom of the first clamping plate, the first slider is slidably matched with the first slide groove, the bottom of the first slider is arranged on the first screw rod, and the first clamping plates on both sides are respectively arranged on both sides of the first partition ring.

[0008] As a further solution of the present invention: the second power assembly includes a second motor, a moving seat and a second screw rod, the side wall of the moving seat is provided with the second motor, the output end of the second motor passes through the side wall of the moving seat and is connected with the second screw rod, a second partition ring is provided in the middle position of the second screw rod, the thread directions on both sides of the second partition ring are opposite, a second slide groove is opened on the mounting plate, a second slider is provided at the bottom of the second splint, the second slider is slidably matched with the second slide groove, the bottom of the second slider is arranged on the second screw rod, and the second splints on both sides are respectively arranged on both sides of the second partition ring.

[0009] As a further solution of the present invention: the movable seat and the mounting seat are arranged at the bottom of the mounting plate.

[0010] As a further solution of the present invention: the pressure detection mechanism includes a telescopic motor, a telescopic shaft and a pressure ring, the telescopic motor is arranged on the top of the high temperature box, the output end of the telescopic motor is connected to the telescopic shaft, and the pressure ring is arranged at the bottom of the telescopic shaft.

[0011] As a further solution of the present invention: a positioning block is fixedly arranged on the telescopic shaft, connecting rods are arranged on both sides of the positioning block, a telescopic ring is arranged at the bottom of the connecting rod, and a second spring is arranged between the telescopic ring and the bottom of the connecting rod.

[0012] As a further solution of the present invention: a telescopic block is provided on the side wall of the connecting rod, telescopic grooves are provided on both sides of the positioning block, the telescopic block is slidably matched with the telescopic groove, an adjustment opening is opened on the top of the telescopic groove, an adjustment block is provided on the telescopic block, supports are provided on both sides of the top of the adjustment opening, a third screw rod is provided between the supports, the adjustment block passes through the adjustment opening and is installed on the third screw rod; a third motor is provided on the side wall of the support, and the output end of the third motor is connected to the third screw rod.

[0013] As a further solution of the present invention: a collection box is provided at the bottom of the avoidance.

[0014] As a further solution of the present invention: a friction pad is arranged at the bottom of the telescopic ring.

[0015] As a further solution of the present invention: the size of the telescopic block is adapted to the telescopic slot.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention drives the first clamping plates on the left and right sides to move toward the center of the avoidance opening at the same time by the first power component, until they are tightly attached to the left and right sides of the ceramic substrate, thereby realizing horizontal positioning and clamping; the second power component drives the second clamping plates on the front and rear sides to move toward the center of the avoidance opening, until they are tightly attached to the front and rear sides of the ceramic substrate, thereby realizing the positioning of the ceramic substrate. Since the first clamping plates and the second clamping plates on both sides move simultaneously, the position of the ceramic substrate is always located in the central area of ​​the avoidance opening, thereby improving the accuracy of subsequent pressure detection; through the cooperation of the connecting block and the first spring, the first clamping plates and the second clamping plates on both sides will not interfere with each other when they move synchronously, thereby improving the efficiency of positioning and being able to adapt to the installation of ceramic substrates of different sizes.

[0017] 2. The present invention can realize elastic positioning of the ceramic substrate by setting the cooperation of the connecting rod, the telescopic ring and the second spring, so that the ceramic substrate can remain stable during pressure testing, and prevent the ceramic substrate from being offset when it is deformed and broken due to force, thereby affecting the accuracy of the test results; at the same time, the third motor drives the third screw to rotate, so the position of the connecting rod can be adjusted, which can be suitable for testing ceramic substrates of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the prior art and the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of a high temperature box.

[0020] Figure 2 This is a schematic diagram of the pressure detection mechanism installation.

[0021] Figure 3 This is a schematic diagram of the positioning mechanism installation.

[0022] Figure 4 A schematic diagram of the three-dimensional structure for installing the first power assembly and the second power assembly.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the pressure detection mechanism.

[0024] Figure 6 A cross-sectional view of the installation of the second clamping plate and the connecting block.

[0025] The accompanying drawings are numerals in the figure: 1. high temperature box; 2. mounting plate; 21. avoidance port; 22. first slide slot; 23. second slide slot; 24. collection box; 3. first clamping plate; 31. connecting slot; 32. first slider; 4. second clamping plate; 41. connecting block; 42. first spring; 43. second slider; 5. mounting seat; 51. first motor; 52. first screw rod; 53. first partition ring; 6. moving seat; 61. second motor; 62. second screw rod; 63. second partition ring; 7. telescopic motor; 71. telescopic shaft; 72. pressing ring; 8. positioning block; 81. telescopic slot; 82. adjusting port; 83. support; 84. third screw rod; 85. third motor; 9. connecting rod; 91. telescopic block; 92. adjusting block; 93. telescopic ring; 94. second spring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] like Figures 1 to 6As shown, a high-temperature ceramic substrate bursting strength tester includes a high-temperature box 1, a positioning mechanism and a pressure detection mechanism. A mounting plate 2 is arranged in the high-temperature box 1, the positioning mechanism is arranged on the mounting plate 2, and the pressure detection mechanism is arranged above the mounting plate 2. By applying a preset pressure to the ceramic substrate, the force conditions in actual use are simulated. At the same time, the pressure detection mechanism monitors and records the deformation of the ceramic substrate under pressure or whether it is broken in real time, so as to evaluate its bursting strength.

[0028] The positioning mechanism includes a first clamping plate 3, a first power assembly, a second clamping plate 4 and a second power assembly. The mounting plate 2 is provided with an escape opening 21. The ceramic substrate to be tested is placed on the mounting plate 2 in the high temperature box 1, and the specific position is the central area of ​​the escape opening 21.

[0029] The avoidance opening 21 is provided with the first clamping plates 3 on both sides along the transverse direction of the mounting plate 2, and the first power component drives the first clamping plates 3 on both sides to move toward the avoidance opening 21 at the same time, and the avoidance opening 21 is provided with the second clamping plates 4 on both sides along the longitudinal direction of the mounting plate 2, and the second power component drives the second clamping plates 4 on both sides to move toward the avoidance opening 21 at the same time; connecting blocks 41 are provided on both sides of the second clamping plates 4, and the side walls of the first clamping plates 3 are provided with connecting grooves 31, and the connecting blocks 41 are slidably matched with the connecting grooves 31, and the connecting blocks 41 and the second clamping plates 4 are internally connected with the first springs 42.

[0030] The first power component drives the first clamping plates 3 on the left and right sides to move toward the center of the avoidance opening 21 at the same time, until they are tightly attached to the left and right sides of the ceramic substrate, thereby realizing horizontal positioning and clamping; the second power component drives the second clamping plates 4 on the front and rear sides to move toward the center of the avoidance opening 21, until they are tightly attached to the front and rear sides of the ceramic substrate, thereby realizing the positioning of the ceramic substrate. Since the first clamping plates 3 and the second clamping plates 4 on both sides move at the same time, the position of the ceramic substrate is always located in the central area of ​​the avoidance opening 21, thereby improving the accuracy of subsequent pressure detection; through the cooperation of the connecting block 41 and the first spring 42, the first clamping plates 3 and the second clamping plates 4 on both sides will not interfere with each other when they move synchronously, thereby improving the efficiency of positioning.

[0031] The first power assembly includes a first motor 51, a mounting seat 5 and a first screw rod 52. The first motor 51 is arranged on the side wall of the mounting seat 5. The output end of the first motor 51 passes through the side wall of the mounting seat 5 and is connected to the first screw rod 52. A first partition ring 53 is arranged in the middle position of the first screw rod 52. The thread directions on both sides of the first partition ring 53 are opposite. A first slide groove 22 is opened on the mounting plate 2. A first slider 32 is arranged at the bottom of the first clamping plate 3. The first slider 32 is slidably matched with the first slide groove 22. The bottom of the first slider 32 is arranged on the first screw rod 52. The first clamping plates 3 on both sides are respectively arranged on both sides of the first partition ring 53.

[0032] The first motor 51 drives the first screw rod 52 to rotate, thereby driving the first slider 32 to move, thereby achieving the first clamping plates 3 on the left and right sides to move closer to or farther away from each other, thereby improving the positioning accuracy of the ceramic substrate.

[0033] The second power assembly includes a second motor 61, a moving seat 6 and a second screw rod 62. The second motor 61 is arranged on the side wall of the moving seat 6. The output end of the second motor 61 passes through the side wall of the moving seat 6 and is connected to the second screw rod 62. A second partition ring 63 is arranged in the middle position of the second screw rod 62. The thread directions on both sides of the second partition ring 63 are opposite. A second slide groove 23 is opened on the mounting plate 2. A second slider 43 is arranged at the bottom of the second clamping plate 4. The second slider 43 is slidably matched with the second slide groove 23. The bottom of the second slider 43 is arranged on the second screw rod 62. The second clamping plates 4 on both sides are respectively arranged on both sides of the second partition ring 63.

[0034] The second motor 61 drives the second screw rod 62 to rotate, driving the second slider 43 to move, thereby achieving the second clamping plates 4 on the front and rear sides to move closer to or farther away from each other, thereby improving the positioning accuracy of the ceramic substrate.

[0035] The movable seat 6 and the mounting seat 5 are arranged at the bottom of the mounting plate 2 .

[0036] The pressure detection mechanism includes a telescopic motor 7, a telescopic shaft 71 and a pressure ring 72. The telescopic motor 7 is arranged on the top of the high temperature box 1. The output end of the telescopic motor 7 is connected to the telescopic shaft 71. The pressure ring 72 is arranged at the bottom of the telescopic shaft 71.

[0037] The telescopic shaft 71 is driven downward by the telescopic motor 7 to drive the pressure ring 72 to press the top of the ceramic substrate. The pressure value can be monitored and recorded in real time by a sensor arranged on the pressure ring 72 or the telescopic shaft 71 .

[0038] The telescopic shaft 71 is fixedly provided with a positioning block 8, connecting rods 9 are provided on both sides of the positioning block 8, a telescopic ring 93 is provided at the bottom of the connecting rod 9, and a second spring 94 is provided between the telescopic ring 93 and the bottom of the connecting rod 9; a telescopic block 91 is provided on the side wall of the connecting rod 9, telescopic grooves 81 are provided on both sides of the positioning block 8, the telescopic block 91 is slidably matched with the telescopic groove 81, the size of the telescopic block 91 is adapted to the telescopic groove 81, an adjustment opening 82 is opened at the top of the telescopic groove 81, an adjustment block 92 is provided on the telescopic block 91, supports 83 are provided on both sides of the top of the adjustment opening 82, a third screw rod 84 is provided between the supports 83, the adjustment block 92 passes through the adjustment opening 82 and is installed on the third screw rod 84; a third motor 85 is provided on the side wall of the support 83, and the output end of the third motor 85 is connected to the third screw rod 84; a friction pad is provided at the bottom of the telescopic ring (93) to increase friction.

[0039] By arranging the connection rod 9, the telescopic ring 93 and the second spring 94, the elastic positioning of the ceramic substrate can be achieved, so that the ceramic substrate remains stable during pressure testing, and the ceramic substrate is prevented from being offset when it is deformed and broken due to force, thereby affecting the accuracy of the test results; at the same time, the third motor 85 drives the third screw rod 84 to rotate, so as to achieve the position adjustment of the connection rod 9, which can be suitable for testing ceramic substrates of different sizes.

[0040] A collecting box 24 is disposed at the bottom of the escape opening 21 .

[0041] The ceramic substrate fragments after the test are collected by the collection box 24 .

[0042] The working principle of the present invention is as follows: first, the ceramic substrate to be tested is placed at the center of the avoidance opening 21 of the mounting plate 2 in the high temperature box 1, and the first motor 51 drives the first screw rod 52 to rotate, driving the first slider 32 to move, thereby realizing the first clamping plates 3 on the left and right sides to approach each other until they are close to the left and right sides of the ceramic substrate, and realizing horizontal positioning and clamping; then the second motor 61 drives the second screw rod 62 to rotate, driving the second slider 43 to move, thereby realizing the second clamping plates 4 on the front and back sides to approach each other until they are close to the front and back sides of the ceramic substrate, and completing the positioning of the ceramic substrate; then, by adjusting the temperature in the high temperature box 1 and setting the temperature required for detection, the telescopic shaft 71 is driven to descend by the telescopic motor 7 to drive the pressure ring 72 to press the top of the ceramic substrate, and the pressure value can be monitored and recorded in real time by sensors arranged on the pressure ring 72 or the telescopic shaft 71; these sensors can accurately sense the changes in pressure and transmit data to the control system for analysis and processing, wherein the structures in the high temperature box 1 are all made of high temperature resistant materials.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-temperature ceramic substrate bursting strength testing machine, comprising a high-temperature box (1), a positioning mechanism and a pressure detection mechanism, wherein a mounting plate (2) is arranged in the high-temperature box (1), the positioning mechanism is arranged on the mounting plate (2), and the pressure detection mechanism is arranged above the mounting plate (2); It is characterized in that The positioning mechanism comprises a first clamping plate (3), a first power assembly, a second clamping plate (4) and a second power assembly; the mounting plate (2) is provided with an escape opening (21); the escape opening (21) is provided with the first clamping plates (3) on both sides along the transverse direction of the mounting plate (2); the first power assembly drives the first clamping plates (3) on both sides to move towards the escape opening (21) at the same time; the escape opening (21) is provided with the second clamping plates (4) on both sides along the longitudinal direction of the mounting plate (2); the second power assembly drives the second clamping plates (4) on both sides to move towards the escape opening (21) at the same time; Connecting blocks (41) are provided on both sides of the second clamping plate (4), a connecting groove (31) is provided on the side wall of the first clamping plate (3), the connecting block (41) is slidably matched with the connecting groove (31), and a first spring (42) is internally connected between the connecting block (41) and the second clamping plate (4).

2. A high temperature ceramic substrate bursting strength testing machine according to claim 1, characterized in that: The first power assembly comprises a first motor (51), a mounting seat (5) and a first screw rod (52); the first motor (51) is arranged on a side wall of the mounting seat (5); an output end of the first motor (51) passes through the side wall of the mounting seat (5) and is connected to the first screw rod (52); a first partition ring (53) is arranged in the middle of the first screw rod (52); the thread teeth on both sides of the first partition ring (53) are in opposite directions; a first slide groove (22) is opened on the mounting plate (2); a first slider (32) is arranged at the bottom of the first clamping plate (3); the first slider (32) is slidably matched with the first slide groove (22); the bottom of the first slider (32) is arranged on the first screw rod (52); and the first clamping plates (3) on both sides are arranged on both sides of the first partition ring (53) respectively.

3. A high temperature ceramic substrate bursting strength testing machine according to claim 2, characterized in that: The second power assembly comprises a second motor (61), a movable seat (6) and a second screw rod (62); the second motor (61) is arranged on the side wall of the movable seat (6); the output end of the second motor (61) passes through the side wall of the movable seat (6) and is connected to the second screw rod (62); a second partition ring (63) is arranged in the middle of the second screw rod (62); the threading directions of the two sides of the second partition ring (63) are opposite; a second slide groove (23) is opened on the mounting plate (2); a second slider (43) is arranged at the bottom of the second clamping plate (4); the second slider (43) is slidably matched with the second slide groove (23); the bottom of the second slider (43) is arranged on the second screw rod (62); and the second clamping plates (4) on both sides are arranged on both sides of the second partition ring (63) respectively.

4. A high temperature ceramic substrate bursting strength testing machine according to claim 3, characterized in that: The movable seat (6) and the mounting seat (5) are arranged at the bottom of the mounting plate (2).

5. A high temperature ceramic substrate bursting strength testing machine according to claim 1, characterized in that: The pressure detection mechanism comprises a telescopic motor (7), a telescopic shaft (71) and a pressure ring (72); the telescopic motor (7) is arranged at the top of the high-temperature box (1); the output end of the telescopic motor (7) is connected to the telescopic shaft (71); and the pressure ring (72) is arranged at the bottom of the telescopic shaft (71).

6. A high temperature ceramic substrate bursting strength testing machine according to claim 5, characterized in that: A positioning block (8) is fixedly provided on the telescopic shaft (71), connecting rods (9) are provided on both sides of the positioning block (8), a telescopic ring (93) is provided at the bottom of the connecting rod (9), and a second spring (94) is provided between the telescopic ring (93) and the bottom of the connecting rod (9).

7. A high temperature ceramic substrate bursting strength testing machine according to claim 6, characterized in that: A telescopic block (91) is provided on the side wall of the connecting rod (9), telescopic grooves (81) are provided on both sides of the positioning block (8), the telescopic block (91) is slidably matched with the telescopic groove (81), an adjustment opening (82) is provided at the top of the telescopic groove (81), an adjustment block (92) is provided on the telescopic block (91), supports (83) are provided on both sides of the top of the adjustment opening (82), a third screw rod (84) is provided between the supports (83), the adjustment block (92) passes through the adjustment opening (82) and is mounted on the third screw rod (84); a third motor (85) is provided on the side wall of the support (83), and an output end of the third motor (85) is connected to the third screw rod (84).

8. The high temperature ceramic substrate bursting strength testing machine according to claim 1, characterized in that: A collection box (24) is provided at the bottom of the avoidance opening (21).

9. A high temperature ceramic substrate bursting strength testing machine according to claim 6, characterized in that: A friction pad is provided at the bottom of the telescopic ring (93).

10. A high temperature ceramic substrate bursting strength testing machine according to claim 7, characterized in that: The size of the telescopic block (91) is adapted to the telescopic slot (81).

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