Anti-breaking tool for oxygen sensor chip test board

Abstract

The utility model discloses an anti-breaking tool for an oxygen sensor chip testboard, and belongs to the technical field of oxygen sensor chip testing. The anti-breaking tool comprises a testboard which is provided with a plurality of oxygen sensor chips and is fixedly connected with a base, and further comprises a screw rod which is rotatably connected to the testboard and is in threaded connection with a movable plate, a positioning assembly is slidably arranged on the moving plate, a guide rod is fixedly connected to the test bench, and the moving plate is slidably connected to the guide rod; according to the anti-breaking tool for the oxygen sensor chip test board, a hand wheel is rotated to drive a screw rod to rotate, the screw rod drives an extension plate to slide downwards so as to drive a moving plate to move downwards, and when the moving plate moves downwards, a plurality of sliding rods drive a positioning plate to make contact with an oxygen sensor chip downwards, so that the oxygen sensor chip is rapidly fixed; compared with a traditional method of fixing the chips one by one, the method has the advantages that the positioning efficiency is greatly improved, and the testing efficiency of the oxygen sensor chips is further improved.

Description

Technical Field

[0001] This utility model relates to the field of oxygen sensor chip testing technology, and in particular to an oxygen sensor chip testing platform anti-breakage fixture. Background Technology

[0002] Oxygen sensors play a crucial role in modern automotive and industrial combustion control. As the core component of an oxygen sensor, the performance of the oxygen sensor chip directly determines the sensor's detection accuracy and reliability. To ensure high quality, oxygen sensor chips undergo comprehensive and rigorous performance testing during production using a testing bench. Oxygen sensor chips are typically made of materials such as zirconia ceramic, which possess excellent oxygen ion conductivity, enabling them to accurately sense oxygen concentration and convert it into an electrical signal.

[0003] However, existing oxygen sensor chip testing stations generally face the prominent problem of chip breakage in actual operation. When testing existing oxygen sensor chips, it is necessary to first position the oxygen sensor chip on the testing station before testing. However, most existing testing stations require manual fixation of oxygen sensor chips one by one, which cannot fix multiple oxygen sensor chips at the same time, resulting in low testing efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing test benches cannot quickly fix multiple oxygen sensor chips at once when testing oxygen sensor chips, and to propose an anti-breakage fixture for oxygen sensor chip test benches.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A breakage-resistant fixture for an oxygen sensor chip test bench includes: a test bench on which multiple oxygen sensor chips are disposed; a base is fixedly connected to the test bench; a screw is rotatably connected to the test bench; a movable plate is threadedly connected to the screw; a positioning component is slidably disposed on the movable plate; a guide rod is fixedly connected to the test bench; and the movable plate is slidably connected to the guide rod.

[0007] Preferably, both ends of the movable plate are fixedly connected to extension plates, the movable plate is threadedly connected to the extension plates, and a handwheel is fixedly connected to the top of the screw.

[0008] Preferably, an extension plate near the guide rod is slidably connected to the guide rod, and a plurality of slide rods are passed through the movable plate, each of the slide rods being slidably connected to the movable plate.

[0009] Preferably, each of the slide bars is fitted with a spring, and the positioning assembly includes a positioning plate fixedly connected to the bottom of each slide bar.

[0010] Preferably, the two ends of the spring abut against the positioning plate and the moving plate respectively, and each positioning plate has a cavity.

[0011] Preferably, each positioning plate has multiple spray holes at its bottom that communicate with the cavity, multiple nozzles are fixedly connected to one side of each positioning plate, an inlet pipe is fixedly connected to the top of each positioning plate, and an air supply pipe is fixedly connected to the multiple inlet pipes.

[0012] Compared with the prior art, this utility model provides an anti-breakage fixture for an oxygen sensor chip testing platform, which has the following beneficial effects:

[0013] 1. This oxygen sensor chip test bench anti-breakage fixture uses a handwheel to rotate a screw, which in turn drives an extension plate to slide downwards, thereby moving a movable plate downwards. As the movable plate moves downwards, multiple sliding rods drive a positioning plate downwards to contact the oxygen sensor chip, thus quickly fixing the oxygen sensor chip for subsequent testing. Compared to the traditional method of fixing each chip individually, this significantly improves positioning efficiency, thereby increasing the testing efficiency of the oxygen sensor chip.

[0014] 2. This oxygen sensor chip testing platform anti-breakage fixture works by moving the movable plate downwards, which in turn drives multiple sliding rods to bring the positioning plates downwards into contact with the oxygen sensor chip. When the handwheel is turned further, the positioning plates move in the opposite direction, driving the sliding rods upwards and compressing the springs. The springs help to cushion the positioning plates and prevent the oxygen sensor chip from breaking when it is being fixed. Each positioning plate can slide independently via the sliding rods, which can accommodate oxygen sensor chips of different thicknesses and achieve stable fixation. Attached Figure Description

[0015] Figure 1 This is a front structural diagram of an oxygen sensor chip test bench anti-breakage fixture proposed in this utility model.

[0016] Figure 2 The present utility model proposes Figure 1 A schematic diagram of the structure of part A;

[0017] Figure 3 This is a side view of the anti-breakage fixture for an oxygen sensor chip test bench proposed in this utility model.

[0018] Figure 4 This is a front view of the anti-breakage fixture for an oxygen sensor chip test bench proposed in this utility model.

[0019] Figure 5 The present utility model proposes Figure 4 A structural diagram of section B;

[0020] Figure 6 This is a schematic diagram of the positioning plate and nozzle structure in an anti-breakage tooling for an oxygen sensor chip test bench proposed in this utility model.

[0021] Figure 7 The present utility model proposes Figure 6 A structural diagram of part C.

[0022] In the diagram: 1. Test bench; 2. Oxygen sensor chip; 3. Base; 4. Screw; 5. Moving plate; 6. Positioning assembly; 7. Guide rod; 8. Extension plate; 9. Handwheel; 10. Slide rod; 11. Spring; 12. Positioning plate; 13. Cavity; 14. Nozzle; 15. Nozzle head; 16. Inlet pipe; 17. Gas delivery pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Reference Figures 1-7 A breakage-prevention fixture for an oxygen sensor chip testing platform includes: a testing platform 1, on which multiple oxygen sensor chips 2 are mounted; a base 3 is fixedly connected to the testing platform 1; a screw 4 rotatably connected to the testing platform 1; a movable plate 5 threadedly connected to the screw 4; a positioning component 6 slidably mounted on the movable plate 5; a guide rod 7 fixedly connected to the testing platform 1; and the movable plate 5 slidably connected to the guide rod 7. By rotating the screw 4, the movable plate 5 slides downward on the screw 4 under the guidance of the guide rod 7, thereby driving the positioning component 6 to move downward and press and position the multiple oxygen sensor chips 2 on the base 3. This quickly fixes the oxygen sensor chips 2, preventing breakage during testing. Compared to the traditional method of fixing them one by one, this greatly improves the positioning efficiency and thus the testing efficiency of the oxygen sensor chips 2.

[0026] Both ends of the movable plate 5 are fixedly connected to extension plates 8. The movable plate 5 is threaded onto the extension plates 8. The top of the screw 4 is fixedly connected to a handwheel 9. The operator can easily rotate the screw 4 by rotating the handwheel 9.

[0027] The extension plate 8 near the guide rod 7 is slidably connected to the guide rod 7. Multiple slide rods 10 pass through the movable plate 5, and each slide rod 10 is slidably connected to the movable plate 5. When the handwheel 9 is turned, the screw 4 is driven to rotate. The screw 4 drives the extension plate 8 to slide downward, which in turn drives the movable plate 5 to move downward.

[0028] Each slide bar 10 is fitted with a spring 11, and the positioning assembly 6 includes a positioning plate 12 fixedly connected to the bottom of each slide bar 10.

[0029] The two ends of the spring 11 abut against the positioning plate 12 and the moving plate 5 respectively. Each positioning plate 12 has a cavity 13. When the moving plate 5 moves downward, it drives the positioning plate 12 downward to contact the oxygen sensor chip 2 through multiple sliding rods 10. Then, when the handwheel 9 is turned, the positioning plate 12 moves in the opposite direction, driving the sliding rods 10 upward, and at the same time compressing the spring 11. The spring 11 helps the positioning plate 12 to play a buffering role and can prevent the oxygen sensor chip 2 from breaking when it is fixed. Each positioning plate 12 can slide independently through the sliding rods 10, which can adapt to oxygen sensor chips 2 of different thicknesses and achieve stable fixation.

[0030] Each positioning plate 12 has multiple nozzles 14 at its bottom that communicate with the cavity 13. Each positioning plate 12 has multiple nozzles 15 fixedly connected to one side, and each positioning plate 12 has an inlet pipe 16 fixedly connected to its top. Each inlet pipe 16 has a gas supply pipe 17 fixedly connected to it. Before fixing the oxygen sensor chip 2, the gas supply pipe 17 is connected to an external jet pipe, allowing gas to enter the cavity 13 of each positioning plate 12 through the inlet pipe 16. At this time, the gas in each positioning plate 12 can be ejected outward through the nozzles 14 and nozzles 15 at the bottom, cleaning any dust that may be present on the surface of the oxygen sensor chip 2, making the detection results of the oxygen sensor chip 2 more accurate during detection.

[0031] In this invention, when testing the oxygen sensor chip 2, multiple oxygen sensor chips 2 are placed on the base 3, and then connected to an external jet pipe through the gas supply pipe 17, allowing gas to enter the cavity 13 of each positioning plate 12 through the inlet pipe 16. At this time, the gas in each positioning plate 12 can be ejected outward through the bottom nozzle 14 and nozzle 15 to clean any dust that may be present on the surface of the oxygen sensor chip 2. After cleaning, the screw 4 is rotated by turning the handwheel 9, which drives the extension plate 8 to slide downward, thereby driving the moving plate 5 to move downward. When the moving plate 5 moves downward, the positioning plate 12 is driven downward to contact the oxygen sensor chip 2 through multiple sliding rods 10. Then, when the handwheel 9 is turned again, the positioning plate 12 moves in the opposite direction, driving the sliding rods 10 upward, and at the same time, the spring 11 is compressed. The spring 11 helps to buffer the positioning plate 12, and each positioning plate 12 can slide independently through the sliding rods 10, which can adapt to oxygen sensor chips 2 of different thicknesses and achieve stable fixation. Then, the testing operation is performed.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A breakage-resistant fixture for an oxygen sensor chip test bench, comprising: A test stand (1), characterized in that a plurality of oxygen sensor chips (2) are disposed on the test stand (1), a base (3) is fixedly connected to the test stand (1), and further comprising: A screw (4) is rotatably connected to the test bench (1), a movable plate (5) is threadedly connected to the screw (4), a positioning component (6) is slidably arranged on the movable plate (5), a guide rod (7) is fixedly connected to the test bench (1), and the movable plate (5) is slidably connected to the guide rod (7).

2. The anti-breakage fixture for an oxygen sensor chip test bench according to claim 1, characterized in that, Both ends of the movable plate (5) are fixedly connected to extension plates (8), the movable plate (5) is threaded onto the extension plates (8), and a handwheel (9) is fixedly connected to the top of the screw (4).

3. The anti-breakage fixture for an oxygen sensor chip test bench according to claim 2, characterized in that, An extension plate (8) close to the guide rod (7) is slidably connected to the guide rod (7), and a plurality of slide rods (10) are passed through the moving plate (5), each of the slide rods (10) being slidably connected to the moving plate (5).

4. The anti-breakage fixture for an oxygen sensor chip test bench according to claim 3, characterized in that, Each of the slide bars (10) is fitted with a spring (11), and the positioning assembly (6) includes a positioning plate (12) fixedly connected to the bottom of each slide bar (10).

5. The anti-breakage fixture for an oxygen sensor chip test bench according to claim 4, characterized in that, The two ends of the spring (11) abut against the positioning plate (12) and the moving plate (5) respectively, and each positioning plate (12) has a cavity (13).

6. The anti-breakage fixture for an oxygen sensor chip test bench according to claim 5, characterized in that... Each of the positioning plates (12) has multiple spray holes (14) at its bottom that communicate with the cavity (13), multiple nozzles (15) are fixedly connected to one side of each positioning plate (12), and an inlet pipe (16) is fixedly connected to the top of each positioning plate (12). Gas supply pipes (17) are fixedly connected to the multiple inlet pipes (16).

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