Ceramic core function testing device

Abstract

The utility model discloses a function testing device for a ceramic core body. The function testing device comprises an upper clamp and two lower clamps which are arranged in parallel, a test probe is arranged at the bottom of the upper clamp; a limiting groove is formed in the lower clamp, a positive pressure opening is formed in the bottom of the limiting groove, the ceramic core body can be placed in the limiting groove in a limited mode, and the pressure sensing face of the ceramic core body is opposite to the positive pressure opening. The two lower clamps can alternately move to be opposite to the upper clamp, and when the upper clamp and the opposite lower clamp are clamped, a test pin on the ceramic core body is electrically connected with the test probe; the two lower clamps are both installed on the sliding seat, and the upper clamp is located above the sliding seat. And one side of the sliding seat is connected with a push-pull mechanism, and the push-pull mechanism can push and pull the sliding seat to translate, so that the two lower clamps on the sliding seat are alternately opposite to the upper clamp. According to the utility model, the ceramic core function test efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the field of ceramic cores, in particular to a ceramic core function testing device. Background Art

[0002] The ceramic core is the pressure-sensing element in the pressure sensor. After the ceramic core is manufactured, it needs to be tested for pressure sensing to confirm whether the pressure sensing function of the ceramic core is normal. Current ceramic core function test devices mostly consist of an upper fixture and a lower fixture. The upper fixture contains a test probe, and the lower fixture contains a pressure port for air supply. After the upper and lower fixtures clamp the ceramic core together, the pins on the ceramic core are connected to the test probe, and then air is supplied from the pressure port to apply pressure to the pressure-sensing surface of the ceramic core. At this time, the test probe can be used to detect whether the pressure sensing function of the ceramic core is normal.

[0003] During the entire ceramic core functional test process, there will be loading and unloading steps for taking and placing the ceramic core. During the loading and unloading process, the lower fixture will be occupied. Therefore, when executing the loading and unloading steps, the actual detection steps cannot be executed synchronously. This leads to the low efficiency of the ceramic core functional test, which needs to be improved. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a ceramic core functional testing device, aiming to improve the efficiency of ceramic core functional testing.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides a ceramic core functional testing device, which includes an upper clamp and two lower clamps arranged in parallel; a test probe is provided at the bottom of the upper clamp; a limit groove is provided on the lower clamp, and a positive pressure port is provided at the bottom of the limit groove. The ceramic core can be placed in the limit groove with the pressure-sensitive surface of the ceramic core facing the positive pressure port; the two lower clamps can be alternately displaced to face the upper clamp, and when the upper clamp is clamped with the relative lower clamp, the test pin on the ceramic core is electrically connected to the test probe.

[0006] Furthermore, the two lower clamps are both installed on the sliding seat, and the upper clamp is located above the sliding seat; one side of the sliding seat is connected to a push-pull mechanism, which can push and pull the sliding seat to move horizontally, so that the two lower clamps on the sliding seat are alternately opposite to the upper clamp.

[0007] Furthermore, the lower clamp is movably mounted on a sliding seat; a lifting mechanism is provided below the sliding seat, and the lifting mechanism is vertically opposite to the upper clamp; when the lower clamp is displaced to between the upper clamp and the lifting mechanism, the lifting mechanism can push the lower clamp upward, so that the upper clamp and the lower clamp are clamped together.

[0008] Furthermore, the bottom of the lower clamp is connected to an air supply pipe, and the output end of the air supply pipe is connected to the positive pressure port; the air supply pipe is a hose to adapt to the displacement of the lower clamp.

[0009] Furthermore, the two sides of the sliding seat are the loading area and the unloading area respectively, the loading area, the two lower clamps and the unloading area are arranged linearly, and the linear arrangement direction is called the material moving direction; a grabbing arm is provided above the upper clamp, and the grabbing arm can be moved back and forth along the material moving direction.

[0010] Furthermore, a vacuum suction cup is provided at the lower end of the grabbing arm, and the vacuum suction cup can be moved up and down, and the grabbing arm sucks and releases the ceramic core through the vacuum suction cup.

[0011] Furthermore, a plurality of limiting grooves are arranged in a row on the lower clamp, and the arrangement direction of the limiting grooves is perpendicular to the material moving direction.

[0012] Beneficial effects: The utility model provides a ceramic core functional testing device, which is provided with two lower clamps, and the two lower clamps can be alternately displaced to be opposite to the upper clamp. When one of the lower clamps performs the loading and unloading steps, the other lower clamp can cooperate with the upper clamp to perform the actual detection steps, thereby improving the efficiency of the ceramic core functional testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attachment Figure 1 This is a schematic diagram of the overall structure of the ceramic core function test device;

[0014] Attachment Figure 2 This is a top view schematic diagram of the ceramic core functional testing device. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] As attached Figures 1 to 2 The ceramic core functional testing device comprises an upper fixture 1 and two lower fixtures 2 arranged in parallel, and the upper fixture 1 is arranged above the two lower fixtures 2. The ceramic core 6 is a flat cylindrical shape, one side of the ceramic core 6 is a pressure-sensitive surface, and the other side of the ceramic core 6 is provided with a test pin 7. A test probe 3 is provided at the bottom of the upper fixture 1. A limiting groove 4 is provided on the lower fixture 2, and a positive pressure port 5 is provided at the bottom of the limiting groove 4. The shape of the limiting groove 4 is consistent with the shape of the ceramic core 6. The ceramic core 6 can be limitedly placed in the limiting groove 4, and the pressure-sensitive surface of the ceramic core 6 is opposite to the positive pressure port 5. There is also a sealing ring in the limiting groove 4, which surrounds the positive pressure port 5. The ceramic core 6 will compress the sealing ring in the limiting groove 4 to form a seal between the pressure-sensitive surface and the positive pressure port 5.

[0017] The two lower clamps 2 can be alternately displaced to face the upper clamp 1. When the upper clamp 1 is clamped with the opposing lower clamp 2, the test pins 7 on the ceramic core 6 are electrically connected to the test probes 3. Since two lower clamps 2 are provided, while one lower clamp 2 is performing the loading and unloading steps, the other lower clamp 2 can cooperate with the upper clamp 1 to perform the actual testing steps, thereby improving the efficiency of functional testing of the ceramic core 6.

[0018] The two lower clamps 2 are mounted on a sliding seat 8, and the upper clamp 1 is located above the sliding seat 8. One side of the sliding seat 8 is connected to a push-pull mechanism 9. In one embodiment, the push-pull mechanism 9 is a push-pull cylinder that can push and pull the sliding seat 8 to perform translational motion, so that the two lower clamps 2 on the sliding seat 8 slide alternately to face the upper clamp 1.

[0019] The lower fixture 2 is movably mounted on the sliding seat 8. Specifically, a vertical sliding hole is provided on the sliding seat 8, and the bottom of the lower fixture 2 is inserted into the sliding hole so that the lower fixture 2 can slide vertically in the sliding hole. The upper end of the lower fixture 2 is provided with a rib, which abuts against the upper edge of the sliding hole to prevent the lower fixture 2 from falling out of the sliding hole. A lifting mechanism 10 is provided below the sliding seat 8. In one embodiment, the lifting mechanism 10 is a lifting cylinder, and the lifting mechanism 10 is vertically opposite to the upper fixture 1. When the lower fixture 2 is displaced to between the upper fixture 1 and the lifting mechanism 10, the lifting mechanism 10 can push the lower fixture 2 upward, so that the upper fixture 1 and the lower fixture 2 are clamped together, so that the test probe 3 at the bottom of the upper fixture 1 is electrically connected to the test pin 7 on the ceramic core 6.

[0020] The bottom of the lower fixture 2 is connected to an air supply pipe 11, which is connected to an air supply device, and the output end of the air supply pipe 11 is connected to the positive pressure port 5. The air supply pipe 11 is a hose so that the air supply pipe 11 can adapt to the reciprocating translation and movable lifting of the lower fixture 2. During the test, the air supply device supplies air to the positive pressure port 5 through the air supply pipe 11, so that the pressure-sensitive surface of the ceramic core 6 is pressurized, and then the pressure-sensitive function of the ceramic core 6 is tested by the test probe 3 to see whether it is normal. The top of the lifting mechanism 10 is staggered with the air supply pipe 11, so that the lifting mechanism 10 will not affect the normal air supply of the air supply pipe 11.

[0021] The two sides of the sliding seat 8 are respectively a loading area 12 and a unloading area 13. The loading area 12, the two lower clamps 2 and the unloading area 13 are arranged linearly, and the linear arrangement direction is called the material moving direction. Figure 2As shown in FIG, the sliding seat 8 is mounted on a workbench 15 and can slide along the surface of the workbench 15. A recess 16 is provided in the middle of the workbench 15, and a lifting mechanism 10 is provided in the recess 16. Both ends of the upper fixture 1 are fixed to the workbench 15 by brackets. Since the brackets support the upper fixture 1, the upper fixture 1 can straddle the sliding seat 8. A feed tray is provided in the loading area 12, and a plurality of ceramic cores 6 are arranged in the feed tray. A discharge conveyor is provided in the discharge area 13, and the ceramic cores 6 that have been inspected can be sent to the next process via the discharge conveyor.

[0022] A grabbing arm 14 is provided above the upper clamp 1. The grabbing arm 14 can be moved back and forth along the material moving direction, so that the grabbing arm 14 can move back and forth between the loading area 12, the unloading area 13 and the two lower clamps 2 to load and unload the two lower clamps 2. In one embodiment, a vacuum suction cup is provided at the lower end of the grabbing arm 14. The vacuum suction cup can be moved up and down, and the grabbing arm 14 sucks and releases the ceramic core 6 through the vacuum suction cup. The upper end of the grabbing arm 14 is mounted on a slide rail. The extension direction of the slide rail is consistent with the material moving direction. The grabbing arm 14 moves back and forth along the slide rail.

[0023] The lower fixture 2 is provided with multiple limiting grooves 4. Accordingly, the lower end of the gripping arm 14 is provided with multiple vacuum cups. The gripping arm 14 can simultaneously pick up and lower multiple ceramic cores 6, thereby improving measurement efficiency. The limiting grooves 4 are arranged linearly, and their arrangement direction is perpendicular to the material movement direction. This shortens the path required for the lower fixture 2 to move back and forth.

[0024] In addition, a purge device is installed on each side of the upper fixture 1. When one lower fixture 2 is facing the upper fixture 1, the other lower fixture 2 faces the purge device. The purge device blows away dirt on the ceramic core 6, ensuring that the test pins 7 on the ceramic core 6 can electrically connect with the test probes 3 at the bottom of the upper fixture 1. The purge device has multiple air outlets; when the lower fixture 2 faces the purge device, each air outlet faces a respective limit slot 4 on the lower fixture 2.

[0025] The working method of the present invention is as follows: the two lower fixtures 2 are respectively called the No. 1 lower fixture 2 and the No. 2 lower fixture 2. When the No. 1 lower fixture 2 is clamped with the upper fixture 1 and the actual test step is performed, the gripping arm 14 removes the tested ceramic core 6 on the No. 2 lower fixture 2 and sends it to the unloading conveyor belt. Then the gripping arm 14 moves to the loading area 12, sucks up the untested ceramic core 6 from the feeding tray, and puts the untested ceramic core 6 into the limiting groove 4 on the No. 2 lower fixture 2; then the No. 1 lower fixture 2 completes the functional test of the ceramic core 6, and the elevator The mechanism 10 moves downward, separating the No. 1 lower fixture 2 from the upper fixture 1. The push-pull mechanism 9 then pushes and pulls the sliding seat, causing the No. 1 lower fixture 2 to be offset from the upper fixture 1, with the No. 2 lower fixture 2 now facing the upper fixture. The lifting mechanism 10 then moves upward, pushing the No. 2 lower fixture 2, clamping it together with the upper fixture 1. The air supply pipe 11 then supplies air, applying pressure to the pressure-sensitive surface of the ceramic core 6. The test probe 3 connected to the test pin 7 performs a functional test on the ceramic core 6. While the No. 2 lower fixture 2 is performing the functional test on the ceramic core 6, the grab arm 14 loads and unloads the No. 1 lower fixture 2. Because the two lower fixtures 2 can operate alternately, the efficiency of the functional test on the ceramic core 6 is improved.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A ceramic core functional testing device, characterized by: The invention comprises an upper clamp (1) and two lower clamps (2) arranged in parallel; a test probe (3) is provided at the bottom of the upper clamp (1); a limit groove (4) is provided on the lower clamp (2); a positive pressure port (5) is provided at the bottom of the limit groove (4); a ceramic core (6) can be placed in the limit groove (4) with a pressure-sensitive surface of the ceramic core (6) facing the positive pressure port (5); the two lower clamps (2) can be alternately displaced to face the upper clamp (1); and when the upper clamp (1) is clamped with the corresponding lower clamp (2), a test pin (7) on the ceramic core (6) is electrically connected to the test probe (3).

2. A ceramic core function testing device according to claim 1, characterized in that: The two lower clamps (2) are both mounted on a sliding seat (8), and the upper clamp (1) is located above the sliding seat (8); one side of the sliding seat (8) is connected to a push-pull mechanism (9), which can push and pull the sliding seat (8) to move horizontally, so that the two lower clamps (2) on the sliding seat (8) are alternately opposite to the upper clamp (1).

3. The ceramic core function testing device according to claim 2, characterized in that: The lower clamp (2) is movably mounted on a sliding seat (8); a lifting mechanism (10) is provided below the sliding seat (8), and the lifting mechanism (10) is vertically opposite to the upper clamp (1); when the lower clamp (2) is displaced to between the upper clamp (1) and the lifting mechanism (10), the lifting mechanism (10) can push the lower clamp (2) upward, so that the upper clamp (1) and the lower clamp (2) are clamped together.

4. The ceramic core function testing device according to claim 1, characterized in that: The bottom of the lower clamp (2) is connected to an air supply pipe (11), and the output end of the air supply pipe (11) is connected to the positive pressure port (5); the air supply pipe (11) is a hose to adapt to the displacement of the lower clamp (2).

5. The ceramic core function testing device according to claim 2, characterized in that: The two sides of the sliding seat (8) are respectively a loading area (12) and a unloading area (13); the loading area (12), the two lower clamps (2) and the unloading area (13) are arranged linearly, and the linear arrangement direction is called the material shifting direction; a grabbing arm (14) is provided above the upper clamp (1), and the grabbing arm (14) can be moved back and forth along the material shifting direction.

6. The ceramic core function testing device according to claim 5, characterized in that: The lower end of the grabbing arm (14) is provided with a vacuum suction cup, which can be moved up and down. The grabbing arm (14) sucks and releases the ceramic core (6) through the vacuum suction cup.

7. The ceramic core function testing device according to claim 5, characterized in that: A plurality of limiting grooves (4) are arranged in a row on the lower clamp (2), and the arrangement direction of the limiting grooves (4) is perpendicular to the material moving direction.

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