Test equipment for oxygen sensor chip

Abstract

The utility model discloses a test device for an oxygen sensor chip, which relates to the technical field of oxygen sensor chips and comprises a slide rail frame. A plurality of sliding blocks are connected to the sliding rail frame in a sliding mode, and each sliding block is welded to the bottom of the bottom plate. A plurality of probe fixing plates are welded on the bottom plate, a probe is mounted on each probe fixing plate in a matched manner, and a chip fixing plate is arranged on one side, far away from the probe fixing plate, of each probe; the chip fixing plate is provided with a circular hole which is convenient for the insertion of the probe, and the chip fixing plate is fixed on the chip fixing plate through a bolt. According to the utility model, the chips are inserted into the chip fixing plates, the slide blocks drive the corresponding bottom plates to move along the slide rail frames, the probe fixing plates on the bottom plates drive the probes to move, and the probes are inserted into the circular holes of the chip fixing plates to be in contact with the chips, so that a plurality of chips can be quickly connected, a plurality of chips can be detected at one time, and the use is more convenient.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of oxygen sensor chips, and specifically is a testing device for oxygen sensor chips. Background Technique

[0002] The chip of the oxygen sensor is used in the exhaust system of an automobile engine and is in a constantly on-off state. As its core component, the chip, its on-off (durability) performance is particularly crucial. Therefore, the on-off detection (durability test) of the chip is extremely urgent as a daily detection item.

[0003] Chinese Utility Model Publication No. CN 219475568 U discloses an aging test device for nitrogen oxide sensor chips, including a workbench. A concave frame is fixedly connected to the top of the workbench. A tester is fixedly installed on the left side of the top of the workbench. A servo motor is fixedly connected to the top of the left side of the inner cavity of the concave frame, and a threaded rod is fixedly connected to the output end of the servo motor.

[0004] In the above-mentioned aging test device for nitrogen oxide sensor chips, by setting an electric cylinder, it can push the detection probe downward to conduct an aging test on the nitrogen oxide sensor chip. By setting a servo motor, a threaded rod and a threaded sleeve, it can drive the electric cylinder, the positioning box and the detection probe to move left and right to adjust the left and right positions of the detection probe, so that it can test the left and right positions of the nitrogen oxide sensor chip and improve the accuracy. When testing the chip, it is necessary to load and unload one by one, which is more troublesome to use and cannot detect multiple chips in batches. Therefore, we provide a testing device for oxygen sensor chips. By installing multiple chips on the chip fixing plate and driving the bottom plate to move through the slider, the probe fixing plate on the bottom plate carries the probe to hold the chip for detection, and it can detect multiple chips at one time, which is more convenient to use and effectively makes up for the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a testing device for oxygen sensor chips to solve the problems raised in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] A testing device for oxygen sensor chips includes a slide rail frame; a plurality of sliders are slidably connected to the slide rail frame, and each slider is welded to the bottom of a bottom plate; a plurality of probe fixing plates are welded to the bottom plate, and a probe is cooperatively installed on each probe fixing plate. The probe is provided with a chip fixing plate on the side away from the probe fixing plate; a circular hole for the probe to be inserted is opened on the chip fixing plate, and the chip fixing plate is fixed to the chip fixing plate by bolts.

[0008] As a further technical solution of the present utility model, the slide rail frame is fixed on the machine frame by bolts. A chute for the sliding connection of the threaded connection seat is provided on the machine frame, and the threaded connection seat is welded to the bottom of the corresponding bottom plate; a lead screw is connected to the bottom plate by threads.

[0009] As a further technical solution of the present utility model, one end of the lead screw is in mating connection with a pedestal bearing installed on the inner wall of the machine frame, and the other end of the lead screw is in mating connection with the drive shaft of a drive motor. The drive motor is fixed on the machine frame by bolts.

[0010] As a further technical solution of the present utility model, fans are fixed on both sides above the machine frame by bolts, and multiple fans are arranged on each side.

[0011] As a further technical solution of the present utility model, a wire harness connector is fixed on the inner side of the machine frame by bolts, and the wire harness connector is electrically connected to the probe.

[0012] As a further technical solution of the present utility model, the wire harness connector is electrically connected to a timer, a counter, and a voltage and current display. The timer, the counter, and the voltage and current display are fixed on the machine frame by bolts.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the present utility model, the chip is inserted into the chip fixing plate. The slider drives the corresponding bottom plate to move along the slide rail frame. The probe fixing plate on the bottom plate will drive the probe to move. The probe is inserted into the circular hole of the chip fixing plate to contact the chip, so as to realize the rapid connection of multiple chips and be able to detect several chips at one time, which is more convenient to use; in the present utility model, the drive shaft of the drive motor drives the connected lead screw to rotate. Under the action of the slider slidingly connecting the slide rail frame and the lead screw being threadedly connected to the threaded connection seat, power can be provided for the slider to indirectly drive the probe to move; in the present utility model, after detection, the chip will get hot, and the fans on both sides can cool the chip, which is convenient for the staff to take it off. Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 2 is Figure 1 another perspective schematic diagram of the present utility model.

[0017] Figure 3 is Figure 1 front view of the present utility model.

[0018] Figure 4 is Figure 3 cross-sectional view taken along line A-A of the present utility model.

[0019] Figure 5 is the partial enlarged view of part B in the present utility model Figure 4 .

[0020] In the figure: 1 - chip, 2 - chip fixing plate, 3 - probe fixing plate, 4 - probe, 5 - bottom plate, 6 - slider, 7 - fan, 8 - timer, 9 - counter, 10 - voltage and current display, 11 - frame, 12 - wire harness connector, 13 - slide rail frame, 14 - threaded connection seat, 15 - lead screw, 16 - drive motor. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , in the embodiment of the present utility model, a test device for an oxygen sensor chip includes a slide rail frame 13; a plurality of sliders 6 are slidably connected to the slide rail frame 13, and each slider 6 is welded to the bottom of the bottom plate 5; a plurality of probe fixing plates 3 are welded to the bottom plate 5, and a probe 4 is cooperatively installed on each probe fixing plate 3. A chip fixing plate 2 is arranged on the side of the probe 4 away from the probe fixing plate 3; a circular hole for the probe 4 to be inserted is formed in the chip fixing plate 2, and the chip fixing plate 2 is fixed to the chip fixing plate 2 by bolts.

[0023] By adopting the above technical solution, the chip 1 is inserted into the chip fixing plate 2, the slider 6 drives the corresponding bottom plate 5 to move along the slide rail frame 13, the probe fixing plate 3 on the bottom plate 5 drives the probe 4 to move, and the probe 4 is inserted into the circular hole of the chip fixing plate 2 to contact the chip 1, so as to quickly connect a plurality of chips 1, and several chips can be detected at one time, which is more convenient to use.

[0024] In this embodiment, the slide rail frame 13 is fixed to the frame 11 by bolts. A chute for the threaded connection seat 14 to slide is provided on the frame 11, and the threaded connection seat 14 is welded to the bottom of the corresponding bottom plate 5; the bottom plate 5 is threadedly connected to the lead screw 15.

[0025] Furthermore, one end of the lead screw 15 is cooperatively connected with a pedestal bearing installed on the inner wall of the frame 11, and the other end of the lead screw 15 is cooperatively connected with the drive shaft of the drive motor 16, and the drive motor 16 is fixed to the frame 11 by bolts.

[0026] By adopting the above technical solution, the drive shaft of the drive motor 16 drives the connected lead screw 15 to rotate. Under the action of the slider 6 slidingly connected to the slide rail frame 13 and the lead screw 15 being threadedly connected to the threaded connection seat 14, power can be provided for the slider 6 to indirectly drive the probe 4 to move.

[0027] In this embodiment, fans 7 are fixedly installed above both sides of the frame 11 by bolts, and multiple fans are provided on each side.

[0028] By adopting the above technical solution, after detection, the chip 1 will get hot, and the fans 7 on both sides can cool the chip 1, which is convenient for the staff to remove.

[0029] In this embodiment, a wire harness connector 12 is fixedly installed inside the frame 11 by bolts, and the wire harness connector 12 is electrically connected to the probe 4.

[0030] Furthermore, the wire harness connector 12 is electrically connected to a timer 8, a counter 9, and a voltage and current display 10, and the timer 8, the counter 9, and the voltage and current display 10 are fixedly installed on the frame 11 by bolts.

[0031] By adopting the above technical solution, the wire harness connector 12 facilitates the connection of the wire harness of the probe 4, and at the same time facilitates the connection of the timer 8, the counter 9, and the voltage and current display 10, which is convenient for detection.

[0032] The working principle of the present utility model is as follows: When in use, the chip 1 is inserted into the chip fixing plate 2. The slider 6 drives the corresponding bottom plate 5 to move along the slide rail frame 13. The probe fixing plate 3 on the bottom plate 5 will drive the probe 4 to move. The probe 4 is inserted into the circular hole of the chip fixing plate 2 to contact the chip 1, so as to realize the rapid connection of multiple chips 1, and several chips can be detected at one time, which is more convenient to use; the drive shaft of the drive motor 16 drives the connected lead screw 15 to rotate. Under the action of the slider 6 slidingly connected to the slide rail frame 13 and the lead screw 15 being threadedly connected to the threaded connection seat 14, power can be provided for the slider 6 to indirectly drive the probe 4 to move; the wire harness connector 12 facilitates the connection of the wire harness of the probe 4, and at the same time facilitates the connection of the timer 8, the counter 9, and the voltage and current display 10, which is convenient for detection; after detection, the chip 1 will get hot, and the fans 7 on both sides can cool the chip 1, which is convenient for the staff to remove.

[0033] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0034] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A test device for an oxygen sensor chip, characterized in that: The invention comprises a slide rail frame (13); a plurality of sliders (6) are slidably connected to the slide rail frame (13), and each slider (6) is welded to the bottom of a base plate (5); a plurality of probe fixing plates (3) are welded to the base plate (5), and each probe fixing plate (3) is matched with and mounted with a probe (4), and a chip fixing plate (2) is arranged on a side of the probe (4) away from the probe fixing plate (3); a circular hole is opened on the chip fixing plate (2) for facilitating the insertion of the probe (4), and the chip fixing plate (2) is fixed to the chip fixing plate (2) by bolts.

2. The oxygen sensor chip testing device according to claim 1, characterized in that: The slide rail frame (13) is fixed to the frame (11) by bolts. The frame (11) is provided with a slide groove for facilitating the sliding connection of the threaded connection seat (14). The threaded connection seat (14) is welded to the bottom of the corresponding base plate (5). The base plate (5) is connected to the lead screw (15) by thread.

3. The oxygen sensor chip testing device according to claim 2, characterized in that: One end of the screw rod (15) is cooperatively connected to a seated bearing mounted on the inner wall of the frame (11), and the other end of the screw rod (15) is cooperatively connected to a drive shaft of a drive motor (16), and the drive motor (16) is fixed to the frame (11) by bolts.

4. The oxygen sensor chip testing device according to claim 3, characterized in that: Fans (7) are fixed to the upper sides of both sides of the frame (11) by bolts, and a plurality of fans (7) are arranged on each side.

5. The oxygen sensor chip testing device according to claim 4, characterized in that: A wiring harness connector (12) is fixed to the inner side of the frame (11) by means of bolts, and the wiring harness connector (12) is electrically connected to the probe (4).

6. The oxygen sensor chip testing device according to claim 5, characterized in that: The wiring harness connector (12) is electrically connected to a timer (8), a counter (9) and a voltage and current display (10); the timer (8), the counter (9) and the voltage and current display (10) are fixed to the frame (11) by bolts.

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