Oxygen sensor chip microcrack detection device convenient for angle adjustment

Abstract

The utility model discloses an oxygen sensor chip microcrack detection device convenient for angle adjustment, which comprises a positioning plate and a power supply, and the power supply is arranged at the front end of the positioning plate; the electric wire is connected to the lower end of the power source, a main clamping arm is connected to the front end of the electric wire, a first threaded rod penetrates through the interior of the main clamping arm, a sliding rod is installed at the outer end of the first threaded rod, an auxiliary clamping arm is connected to the inner end of the main clamping arm, and a limiting plate is arranged at the front end of the auxiliary clamping arm; the outer end of the limiting plate is connected with a second threaded rod, the outer surface of the second threaded rod is sleeved with a spring, and a supporting column is arranged at the outer end of the spring. And the detection table is fixed at the lower end of the supporting column. According to the oxygen sensor chip microcrack detection device convenient to adjust the angle, the chip can be conveniently clamped and positioned, whether microcracks exist in the chip or not can be conveniently detected through current, the detection table can be conveniently rotated, the angle of the chip can be conveniently adjusted, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen sensor chip microcrack detection devices, in particular to an oxygen sensor chip microcrack detection device which is convenient for adjusting the angle. Background Art

[0002] During the installation process, the oxygen sensor chip may be affected by pressure and may break, delaminate, or have microcracks. If the chip breaks as a whole, it is easy to detect in subsequent processes. Since the chip is made of two or more different ceramic raw materials and multi-layer co-fired into one body, microcracks between layers may appear during the packaging process, which is difficult to detect in a short time during conventional production.

[0003] Publication No. CN 211577037 U provides a post-package microcrack detection device for oxygen sensor chips. The device comprises a housing, a voltage source disposed within the housing, a relay disposed within the housing, a first terminal disposed on the front panel of the housing for connecting to the oxygen sensor's heating pin. The first terminal is sequentially connected to the relay and the voltage source, and a controller disposed within the housing for controlling the on / off switching of the relay. This technical solution addresses the complex and unsafe nature of post-package microcrack detection in oxygen sensor chips in the prior art.

[0004] The above-mentioned prior art solutions have the following defects: the oxygen sensor chip microcrack detection device is not convenient for clamping and positioning the chip, is not convenient for detecting fine cracks inside the chip, is not convenient for rotating the detection table, and cannot adjust the chip angle, which is inconvenient to use. Therefore, the utility model provides an oxygen sensor chip microcrack detection device with easy angle adjustment to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the present utility model is to provide an oxygen sensor chip microcrack detection device with easy angle adjustment, so as to solve the problems proposed in the above background technology that the oxygen sensor chip microcrack detection device is not convenient for clamping and positioning the chip, is not convenient for detecting fine cracks inside the chip, is not convenient for rotating the detection table, cannot adjust the chip angle, and is inconvenient to use.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an oxygen sensor chip microcrack detection device that is easy to adjust the angle, comprising a positioning plate and a power supply, wherein the power supply is arranged at the front end of the positioning plate;

[0007] Also includes:

[0008] An electric wire is connected to the lower end of the power supply, the front end of the electric wire is connected to a main clamping arm, and a first threaded rod is passed through the interior of the main clamping arm, and a sliding rod is installed on the outer end of the first threaded rod, the inner end of the main clamping arm is connected to an auxiliary clamping arm, a limit plate is provided at the front end of the auxiliary clamping arm, and a second threaded rod is connected to the outer end of the limit plate, and a spring is sleeved on the outer surface of the second threaded rod, and a support column is provided on the outer end of the spring;

[0009] The detection platform is fixed at the lower end of the support column. The lower end of the detection platform is connected to a gear ring, and a gear assembly is provided inside the gear ring. The lower end of the gear assembly is connected to a bevel gear, and the outer end of the bevel gear is provided with a support frame, and the right end of the bevel gear is connected to a motor. The outer end of the gear ring is provided with a support seat.

[0010] Preferably, the auxiliary clamping arm forms a rotating structure at the inner end of the main clamping arm, and the first threaded rod is connected to the inside of the main clamping arm in a threaded manner.

[0011] Preferably, the limiting plates are arranged bilaterally symmetrically with respect to the central axis of the detection platform, and the length of the limiting plates is smaller than the length and width of the chip.

[0012] Preferably, the second threaded rod passes through the interior of the support column, and the second threaded rod is connected to the interior of the support column in a threaded manner.

[0013] Preferably, six square grooves are opened at equal angles on the lower surface of the testing platform, and the slots at the lower end of the testing platform are connected to the gear ring by snapping, and the upper end of the testing platform is connected to the support column by snapping.

[0014] Preferably, the bevel teeth are connected to the lower end of the gear assembly in a meshing manner, and the upper end of the gear assembly is meshed with the interior of the gear ring.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the oxygen sensor chip microcrack detection device with easy-to-adjust angle is convenient for clamping and positioning the chip, convenient for detecting whether there are microcracks inside the chip through current, convenient for rotating the detection table, adjusting the chip angle, and convenient for use;

[0016] 1. Set up the limit plate, the second threaded rod and the test table. Rotate the second threaded rod clockwise to move the limit plates on both sides closer to the inside until the chip is clamped, so as to facilitate the positioning of the chip.

[0017] 2. Wires, a main clamping arm, and a first threaded rod are provided to transmit current from the wire at the left end through the chip to the wire at the right end. If there is a crack in the chip, a large resistance will be generated, causing the chip to heat up. If the chip is intact, the chip temperature remains unchanged, thereby achieving the purpose of detecting micro cracks inside the chip;

[0018] 3. A gear ring, a gear assembly and bevel gears are provided. The left end of the motor drives the bevel gears to engage the gear assembly, and the gear assembly drives the gear ring to rotate, so that the test platform can rotate 360 degrees on the upper end of the support seat, thereby facilitating the adjustment of the angle between the chip and the power supply and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model from above;

[0021] Figure 3 This is a schematic diagram of the connection structure between the gear ring and the gear assembly of the utility model;

[0022] Figure 4 For this utility model Figure 1 A schematic diagram of the structure at center A;

[0023] Figure 5 For this utility model Figure 2 Enlarged schematic diagram of the structure at point B in the middle.

[0024] In the figure: 1. Positioning plate; 2. Power supply; 3. Wire; 4. Main clamping arm; 5. First threaded rod; 6. Sliding rod; 7. Auxiliary clamping arm; 8. Limiting plate; 9. Second threaded rod; 10. Spring; 11. Support column; 12. Testing table; 13. Gear ring; 14. Gear assembly; 15. Bevel gear; 16. Support frame; 17. Motor; 18. Support base. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-5 The utility model provides a technical solution: an oxygen sensor chip microcrack detection device that is easy to adjust the angle, including a positioning plate 1, a power supply 2, a wire 3, a main clamping arm 4, a first threaded rod 5, a sliding rod 6, an auxiliary clamping arm 7, a limit plate 8, a second threaded rod 9, a spring 10, a support column 11, a detection platform 12, a gear ring 13, a gear assembly 14, a bevel gear 15, a support frame 16, a motor 17 and a support base 18.

[0027] The wire 3 is connected to the lower end of the power supply 2, and the front end of the wire 3 is connected to the main clamping arm 4, and the first threaded rod 5 is passed through the interior of the main clamping arm 4, and the outer end of the first threaded rod 5 is installed with a slide rod 6, the inner end of the main clamping arm 4 is connected to the auxiliary clamping arm 7, the front end of the auxiliary clamping arm 7 is provided with a limit plate 8, and the outer end of the limit plate 8 is connected to the second threaded rod 9, and the outer surface of the second threaded rod 9 is provided with a spring 10, and the outer end of the spring 10 is provided with a support column 11;

[0028] The detection platform 12 is fixed to the lower end of the support column 11. The lower end of the detection platform 12 is connected to the gear ring 13, and a gear assembly 14 is provided inside the gear ring 13. The lower end of the gear assembly 14 is connected to the bevel gear 15, and the outer end of the bevel gear 15 is provided with a support frame 16, and the right end of the bevel gear 15 is connected to the motor 17. The outer end of the gear ring 13 is provided with a support seat 18.

[0029] like Figure 1 、 Figure 2 and Figure 5 As shown, the auxiliary clamping arm 7 forms a rotating structure at the inner end of the main clamping arm 4, and the first threaded rod 5 is connected to the inside of the main clamping arm 4 by a threaded manner, the limit plate 8 is symmetrically arranged about the central axis of the detection platform 12, and the length of the limit plate 8 is smaller than the length and width of the chip, the second threaded rod 9 passes through the inside of the support column 11, and the second threaded rod 9 is connected to the inside of the support column 11 by a threaded manner. When using the chip detection device, first place the chip on the raised platform of the detection platform 12, and then rotate the second threaded rod 9 clockwise to make the left and right sides of the chip be fixed. The limit plates 8 on the right side move inward until the chip is clamped to facilitate positioning of the chip, and then the wire 3 is stretched to place the chip between the main clamping arm 4 and the auxiliary clamping arm 7 and the slide bar 6 is held tightly to rotate the first threaded rod 5 so that the main clamping arm 4 and the auxiliary clamping arm 7 clamp the chip corners, and the power supply 2 is started to transmit the current from the wire 3 at the left end through the chip to the wire 3 at the right end. If there is a crack in the chip, a large resistance will be generated, causing the chip to heat up. If the chip is intact, the chip temperature remains unchanged, thereby achieving the purpose of detecting microcracks inside the chip.

[0030] like Figure 1 and Figure 3As shown, 6 square grooves are provided at equal angles on the lower surface of the testing platform 12, and the slots at the lower end of the testing platform 12 are connected to the gear ring 13 in a snap-fit manner, and the upper end of the testing platform 12 is connected to the support column 11 in a snap-fit manner, the bevel gear 15 is connected to the lower end of the gear assembly 14 in a meshing manner, and the upper end of the gear assembly 14 is meshed with the inside of the gear ring 13. When the main clamping arm 4 and the auxiliary clamping arm 7 are not convenient for clamping the chip corner, the motor 17 can be started so that the left end of the motor 17 drives the bevel gear 15 to mesh with the gear assembly 14, and the gear assembly 14 drives the gear ring 13 to rotate, so that the testing platform 12 can rotate 360° at the upper end of the support seat 18, thereby facilitating the adjustment of the angle between the chip and the power supply 2 and facilitating use.

[0031] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A microcrack detection device for an oxygen sensor chip that is easy to adjust in angle, comprising a positioning plate (1) and a power supply (2), wherein the power supply (2) is arranged at the front end of the positioning plate (1); It is characterized in that Also includes: An electric wire (3) is connected to the lower end of the power source (2); the front end of the electric wire (3) is connected to a main clamping arm (4); a first threaded rod (5) is passed through the interior of the main clamping arm (4); a sliding rod (6) is installed at the outer end of the first threaded rod (5); the inner end of the main clamping arm (4) is connected to an auxiliary clamping arm (7); a limiting plate (8) is provided at the front end of the auxiliary clamping arm (7); the outer end of the limiting plate (8) is connected to a second threaded rod (9); a spring (10) is sleeved on the outer surface of the second threaded rod (9); a support column (11) is provided at the outer end of the spring (10); The detection platform (12) is fixed at the lower end of the support column (11), the lower end of the detection platform (12) is connected with a gear ring (13), and a gear assembly (14) is provided inside the gear ring (13), and the lower end of the gear assembly (14) is connected with a bevel gear (15), the outer end of the bevel gear (15) is provided with a support frame (16), and the right end of the bevel gear (15) is connected to a motor (17), and the outer end of the gear ring (13) is sleeved with a support seat (18).

2. The oxygen sensor chip microcrack detection device with easy angle adjustment according to claim 1, characterized in that: The auxiliary clamping arm (7) forms a rotating structure at the inner end of the main clamping arm (4), and the first threaded rod (5) is connected to the inside of the main clamping arm (4) in a threaded manner.

3. The oxygen sensor chip microcrack detection device with easy angle adjustment according to claim 1, characterized in that: The limiting plate (8) is arranged symmetrically about the central axis of the detection platform (12), and the length of the limiting plate (8) is smaller than the length and width of the chip.

4. The oxygen sensor chip microcrack detection device with easy angle adjustment according to claim 1, characterized in that: The second threaded rod (9) passes through the interior of the support column (11), and the second threaded rod (9) is connected to the interior of the support column (11) in a threaded manner.

5. The oxygen sensor chip microcrack detection device with easy angle adjustment according to claim 1, characterized in that: The lower surface of the detection platform (12) is provided with six square grooves at equal angles, and the slot hole at the lower end of the detection platform (12) is connected to the gear ring (13) in a snap-fit manner, and the upper end of the detection platform (12) is connected to the support column (11) in a snap-fit manner.

6. The oxygen sensor chip microcrack detection device with easy angle adjustment according to claim 1, characterized in that: The bevel teeth (15) are connected to the lower end of the gear assembly (14) in a meshing manner, and the upper end of the gear assembly (14) is meshed with the interior of the gear ring (13).

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