Ceramic pressure sensor batch high-temperature test bench convenient for sorting

Abstract

The utility model relates to the field of ceramic pressure sensors, in particular to a ceramic pressure sensor batch high-temperature test board convenient for sorting, which comprises a high-temperature box used for batch high-temperature test of ceramic pressure sensors. According to the ceramic pressure sensor batch high-temperature test board convenient to sort, through the arrangement of the test placement table, the electric slide rail, the push plate, the buffer plate and the sorting mechanism, a plurality of ceramic pressure sensors are placed in the test placement table, and then the test plate and the test needle head test the ceramic sensors in the test placement table; when a defective ceramic pressure sensor is tested, data are transmitted to a processor, a cylinder switch below the defective ceramic pressure sensor is turned on through the processor, a piston rod and a top plate are driven to descend, and then the defective ceramic pressure sensor falls into a defective discharge groove. Qualified products are flush with the test placement table by pushing a top plate through an air cylinder, and the qualified products are pushed into a buffer plate by driving a push plate through an electric sliding rail.

Description

Technical Field

[0001] The utility model relates to the field of ceramic pressure sensors, and particularly relates to a batch high-temperature test bench for ceramic pressure sensors which is convenient for sorting. Background Technique

[0002] A ceramic pressure sensor is a dry-type sensor made of ceramic materials through special processes. It works by using the piezoresistive effect. This sensor has the characteristics of high elasticity, corrosion resistance, wear resistance, shock resistance and vibration resistance, making it perform well in various harsh environments. During the production process of ceramic pressure sensors, tests need to be carried out in a high-temperature environment.

[0003] In the existing batch high-temperature test bench for ceramic pressure sensors, during the high-temperature detection of ceramic pressure sensors, both defective products and qualified products need to be manually taken out. Since the temperature inside the high-temperature test bench itself is too high, directly taking them by hand is likely to cause burns. At the same time, taking them with tools or manipulators not only wastes time but also affects the detection efficiency.

[0004] Therefore, it is very necessary to invent a batch high-temperature test bench for ceramic pressure sensors which is convenient for sorting to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a batch high-temperature test bench for ceramic pressure sensors which is convenient for sorting. By placing multiple ceramic pressure sensors in the placement grooves in the test placement table respectively, and then testing the ceramic sensors in the test placement table through a test board and test needles. When a defective ceramic pressure sensor is detected, the data is transmitted to the processor. The processor will open the cylinder switch under the defective ceramic pressure sensor, drive the piston rod and the top plate to descend, and then the defective ceramic pressure sensor will fall into the lower defective product discharge groove for collection. For qualified products, the cylinder is used to push the top plate to make the qualified products flush with the test placement table, and then the electric slide rail is used to drive the push plate to push the qualified products into the buffer plate for discharge, so as to solve the problems raised in the above background technique.

[0006] In order to achieve the above purpose, the utility model provides the following technical solution: A batch high-temperature test bench for ceramic pressure sensors which is convenient for sorting, including a high-temperature box for batch high-temperature testing of ceramic pressure sensors;

[0007] The heating tubes are installed on both sides of the inner wall of the high-temperature box and are used to provide preheating. A sealing door is movably connected to one side of the high-temperature box. Partition plates are fixedly installed on both sides of the high-temperature box. A test placement table is fixedly installed inside the high-temperature box. A buffer plate is fixedly installed on one side of the test placement table. A baffle is fixedly installed outside the buffer plate. Placement grooves are formed on the upper surface of the test placement table, and docking grooves are formed around the upper surface of the test placement table. A defective product discharge groove is fixedly installed below the test placement table;

[0008] The push plate is installed inside the high-temperature box and is used to push the ceramic pressure sensor. An electric slide rail is fixedly arranged inside the high-temperature box. An electric slider is movably connected to the outside of the electric slide rail. A push plate is fixedly installed on one side of the electric slider;

[0009] The sorting mechanism is installed inside the test placement table and is used to classify and discharge the ceramic pressure sensors;

[0010] The test board is installed inside the high-temperature box and is used to test the ceramic pressure sensor. A hydraulic cylinder is fixedly arranged above the high-temperature box. A connecting plate is fixedly installed at the lower end of the hydraulic cylinder. The test board is arranged below the connecting plate. Test needles are fixedly arranged below the test board. Docking columns are fixedly installed around the lower part of the test board.

[0011] Preferably, a temperature sensor is arranged on one side of the upper part inside the high-temperature box, and the input end of the temperature sensor is electrically connected to the internal processor of the high-temperature box.

[0012] Preferably, the length of the push plate is the same as the length of the test placement table, and the lower part of the push plate is close to the upper part of the test placement table.

[0013] Preferably, the sorting mechanism includes fixed rods, cylinders, piston rods, and top plates. The fixed rods are all fixed inside the test placement table. Cylinders are fixedly installed above the fixed rods. Piston rods are movably connected inside the cylinders. Top plates are fixedly installed above the piston rods.

[0014] Preferably, the external dimensions of the top plate are the same as the dimensions of the placement grooves formed inside the test placement table.

[0015] Preferably, telescopic rods are movably connected inside the four sides of the connecting plate. The telescopic rods are fixedly connected to the test board, and springs are arranged outside the telescopic rods.

[0016] In the above technical solution, the technical effects and advantages provided by the present utility model:

[0017] Through the settings of the test placement table, electric slide rail, electric slider, push plate, buffer plate and sorting mechanism, it is possible to facilitate the classified discharge of qualified and unqualified ceramic pressure sensors, so that there is no need for staff to manually take or use tools. By placing multiple ceramic pressure sensors in the placement slots in the test placement table respectively, and then testing the ceramic sensors in the test placement table through the test board and test needles. When detecting a defective ceramic pressure sensor, the data is transmitted to the processor. The processor will open the cylinder switch under the defective ceramic pressure sensor to drive the piston rod and the top plate to descend, and then the defective ceramic pressure sensor will fall into the lower defective discharge slot for collection. For the qualified products, the cylinder is used to push the top plate to make the qualified products flush with the test placement table, and then the electric slide rail is used to drive the push plate to push the qualified products into the buffer plate for discharge;

[0018] Through the settings of the heating tube, partition board and temperature sensor, the temperature control effect can be improved. The temperature sensor inside the high-temperature box can monitor the temperature inside the high-temperature box in real time and send the temperature data to the processor inside the high-temperature box. After judgment by the processor, the output power of the heating tube is adjusted, so that the high-temperature box can maintain the required temperature. Brief Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 It is a schematic diagram of the heating tube structure of the present utility model;

[0022] Figure 3 It is a schematic diagram of the push plate structure of the present utility model;

[0023] Figure 4 It is a schematic diagram of the test placement table structure of the present utility model;

[0024] Figure 5 It is a schematic diagram of the sorting mechanism structure of the present utility model;

[0025] Figure 6 It is a schematic diagram of the test board structure of the present utility model.

[0026] Explanation of the Reference Numerals in the Drawings:

[0027] 1. High-temperature box; 2. Sealed door; 3. Heating tube; 4. Partition board; 5. Temperature sensor; 6. Test placement table; 7. Electric slide rail; 8. Electric slider; 9. Pushing plate; 10. Buffer plate; 11. Baffle; 12. Placement groove; 13. Docking groove; 14. Sorting mechanism; 1401. Fixed rod; 1402. Cylinder; 1403. Piston rod; 1404. Top plate; 15. Defective product discharge groove; 16. Hydraulic cylinder; 17. Connecting plate; 18. Telescopic rod; 19. Spring; 20. Test plate; 21. Test needle; 22. Docking column. Detailed implementation mode

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further introduced in detail below with reference to the accompanying drawings.

[0029] The present invention provides a batch high-temperature test bench for ceramic pressure sensors that is convenient for sorting as shown in Figures 1-6 Figure 10, which includes a high-temperature box 1 for batch high-temperature testing of ceramic pressure sensors;

[0030] Heating tubes 3 are installed on both sides of the inner wall of the high-temperature box 1 for providing preheating. A sealed door 2 is movably connected to one side of the high-temperature box 1. Partition boards 4 are fixedly installed on both sides of the high-temperature box 1. A test placement table 6 is fixedly installed inside the high-temperature box 1. A buffer plate 10 is fixedly installed on one side of the test placement table 6. A baffle 11 is fixedly installed outside the buffer plate 10. Placement grooves 12 are opened on the upper surface of the test placement table 6. Docking grooves 13 are opened around the upper surface of the test placement table 6. A defective product discharge groove 15 is fixedly installed below the test placement table 6;

[0031] A pushing plate 9 is installed inside the high-temperature box 1 for pushing the ceramic pressure sensors. An electric slide rail 7 is fixedly arranged inside the high-temperature box 1. An electric slider 8 is movably connected to the outside of the electric slide rail 7. A pushing plate 9 is fixedly installed on one side of the electric slider 8;

[0032] A sorting mechanism 14 is installed inside the test placement table 6 for classifying and discharging the ceramic pressure sensors;

[0033] The test board 20 is installed inside the high-temperature box 1 and is used to test ceramic pressure sensors. By placing multiple ceramic pressure sensors in the placement grooves 12 inside the test placement table 6 respectively, and then testing the ceramic sensors inside the test placement table 6 through the test board 20 and the test needles 21. When detecting a defective ceramic pressure sensor, the data is transmitted to the processor. The processor will turn on the switch of the cylinder 1402 below the defective ceramic pressure sensor, drive the piston rod 1403 and the top plate 1404 to descend. Then the defective ceramic pressure sensor falls into the lower defective discharge groove 15 for collection. For the qualified products, the cylinder 1402 is used to push the top plate 1404 to make the qualified products flush with the test placement table 6. Then the electric slide rail 7 is used to drive the push plate 9 to push the qualified products into the buffer plate 10 for discharge.

[0034] As Figure 1 and Figure 2 shown, a temperature sensor 5 is provided on one side of the upper part inside the high-temperature box 1. The input end of the temperature sensor 5 is electrically connected to the processor inside the high-temperature box 1. The temperature inside the high-temperature box 1 can be detected in real time through the temperature sensor 5 inside the high-temperature box 1, and the temperature data is sent to the processor inside the high-temperature box 1. After judgment by the processor, the output power of the heating tube 3 is adjusted, so that the high-temperature box 1 can maintain the required temperature.

[0035] As Figure 3 shown, the length of the push plate 9 is the same as the length of the test placement table 6. The lower part of the push plate 9 is close to the upper part of the test placement table 6. The electric slide rail 7 is used to drive the external electric slider 8 and the push plate 9 to push the qualified ceramic pressure sensors lifted inside the test placement table 6 into the buffer plate 10 for discharge.

[0036] As Figure 4 and Figure 5 shown, the sorting mechanism 14 includes a fixed rod 1401, a cylinder 1402, a piston rod 1403, and a top plate 1404. The fixed rods 1401 are all fixed inside the test placement table 6. Cylinders 1402 are fixedly installed above the fixed rods 1401. The piston rod 1403 is movably connected inside the cylinder 1402. The top plate 1404 is fixedly installed above the piston rod 1403. The cylinder 1402 is used to drive the piston rod 1403 and the top plate 1404 to lift and lower, so as to classify defective products and qualified products.

[0037] As Figure 4 and Figure 5 shown, the external dimensions of the top plate 1404 are the same as the dimensions of the placement grooves 12 opened inside the test placement table 6. The size of the top plate 1404 matches the dimensions of the placement grooves 12 inside the test placement table 6, and it can resist the ceramic pressure sensor, improving the stability.

[0038] As Figure 1 and Figure 6As shown in the figure, a hydraulic cylinder 16 is fixedly arranged above the high-temperature box 1. A connecting plate 17 is fixedly installed at the lower end of the hydraulic cylinder 16. Telescopic rods 18 are movably connected to the inner parts around the connecting plate 17. Springs 19 are arranged outside the telescopic rods 18. A test plate 20 is arranged below the connecting plate 17. Test needles 21 are fixedly arranged below the test plate 20. Docking columns 22 are fixedly installed around the lower part of the test plate 20. When the test plate 20 and the test needles 21 descend and contact the ceramic pressure sensor, by the rebounding and squeezing action of the telescopic rods 18 around the upper part of the test plate 20 and the external springs 19, the test needles 21 can contact the upper part of the ceramic pressure sensor more stably for detection.

[0039] The working principle of this utility model: First, connect the external power supply. Then, use tools to place multiple ceramic pressure sensors in the placement grooves 12 in the test placement table 6. After that, close the sealing door 2. Then, turn on the switches of the heating tubes 3 on both sides inside the high-temperature box 1 to heat the inside of the high-temperature box 1. The temperature sensor 5 inside the high-temperature box 1 can monitor the temperature inside the high-temperature box 1 in real time and send the temperature data to the processor inside the high-temperature box 1. After judgment by the processor, the output power of the heating tubes 3 is adjusted, so that the high-temperature box 1 can maintain the required temperature. Next, turn on the switch of the hydraulic cylinder 16 to push the connecting plate 17 and the test plate 20 and the test needles 21 below it to descend, so that the test needles 21 contact each ceramic pressure sensor on the test placement table 6 for testing. The detected data is transmitted to the detector for analysis. The detector judges whether the performance of the ceramic pressure sensor meets the standard according to the test results. When the test is completed, turn off the switch of the hydraulic cylinder 16, lift the test plate 20 and the test needles 21 to the initial position. After that, when detecting defective ceramic pressure sensors, the data is transmitted to the processor. The processor will turn on the switch of the cylinder 1402 below the defective ceramic pressure sensor to drive the piston rod 1403 and the top plate 1404 to descend. Then, the defective ceramic pressure sensor falls into the lower defective product discharge groove 15 for collection. For qualified products, turn on the switch of other cylinders 1402 to push the top plate 1404 to make the qualified products flush with the test placement table 6. Then, turn on the switch of the electric slide rail 7 to drive the electric slider 8 and the push plate 9 to push the qualified products into the buffer plate 10 for discharge. After discharge, turn off the switch of the electric slide rail 7 to return the electric slider 8 and the push plate 9 to their original positions. After all defective products and qualified products are discharged, continue to put the next batch of ceramic pressure sensors. Finally, when the device is not used, cut off the external power supply. Just like this, the use process of this convenient sorting ceramic pressure sensor batch high-temperature test bench is completed.

[0040] Only some exemplary embodiments of the present utility model are described by way of illustration. Without doubt, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A batch high-temperature test bench for ceramic pressure sensors that is convenient for sorting, characterized in that: It includes a high-temperature chamber (1) for batch high-temperature testing of ceramic pressure sensors; Heating tubes (3) are installed on both sides of the inner wall of the high-temperature chamber (1) for providing preheating. A sealing door (2) is movably connected to one side of the high-temperature chamber (1). Partition plates (4) are fixedly installed on both sides of the high-temperature chamber (1). A test placement table (6) is fixedly installed inside the high-temperature chamber (1). A buffer plate (10) is fixedly installed on one side of the test placement table (6). A baffle (11) is fixedly installed outside the buffer plate (10). Placement grooves (12) are formed on the upper surface of the test placement table (6). Docking grooves (13) are formed around the upper surface of the test placement table (6). A defective product discharge groove (15) is fixedly installed below the test placement table (6); A push plate (9) is installed inside the high-temperature chamber (1) for pushing the ceramic pressure sensors. An electric slide rail (7) is fixedly arranged inside the high-temperature chamber (1). An electric slider (8) is movably connected to the outside of the electric slide rail (7). A push plate (9) is fixedly installed on one side of the electric slider (8); A sorting mechanism (14) is installed inside the test placement table (6) for classifying and discharging the ceramic pressure sensors; A test board (20) is installed inside the high-temperature chamber (1) for testing the ceramic pressure sensors.

2. The batch high-temperature test bench for a ceramic pressure sensor facilitating sorting according to claim 1, wherein: A temperature sensor (5) is arranged on one side above the inside of the high-temperature chamber (1). The input end of the temperature sensor (5) is electrically connected to the internal processor of the high-temperature chamber (1).

3. The batch high-temperature test bench for a ceramic pressure sensor facilitating sorting according to claim 1, characterized in that: The length of the push plate (9) is the same as the length of the test placement table (6), and the lower part of the push plate (9) is close to the upper part of the test placement table (6).

4. A batch high-temperature test bench for a ceramic pressure sensor facilitating sorting according to claim 1, characterized in that: The sorting mechanism (14) includes fixed rods (1401), cylinders (1402), piston rods (1403), and top plates (1404). The fixed rods (1401) are all fixed inside the test placement table (6). Cylinders (1402) are fixedly installed above the fixed rods (1401). Piston rods (1403) are movably connected inside the cylinders (1402). Top plates (1404) are fixedly installed above the piston rods (1403).

5. A batch high-temperature test bench for a ceramic pressure sensor facilitating sorting according to claim 4, characterized in that: The external dimensions of the top plate (1404) are the same as the dimensions of the placement grooves (12) formed inside the test placement table (6).

6. The batch high-temperature test bench for a ceramic pressure sensor facilitating sorting according to claim 1, wherein: A hydraulic cylinder (16) is fixedly arranged above the high-temperature chamber (1). A connecting plate (17) is fixedly installed at the lower end of the hydraulic cylinder (16). Expansion rods (18) are movably connected inside the four peripheries of the connecting plate (17). Springs (19) are arranged outside the expansion rods (18). The test board (20) is arranged below the connecting plate (17). Test needles (21) are fixedly arranged below the test board (20). Docking columns (22) are fixedly installed around the lower part of the test board (20).

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