Testing equipment for wide-range oxygen sensor resistance calibration
Through the combination of laser laser machine and automated mechanical structure, efficient and accurate calibration of oxygen sensor resistance is achieved, solving the problems of inaccurate and time-consuming manual operation in traditional methods, improving the stability of current output and reducing costs.
Patent Information
- Application Number
- CN202421902879.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-07
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-07
AI Technical Summary
The traditional oxygen sensor resistance calibration method is inaccurate and time-consuming manually, resulting in unstable current output and high cost, making it difficult to adapt to changes in the use of oxygen sensors.
The oxygen sensor resistance is calibrated by a laser laser machine, combined with the combination of a sliding frame, rotating cylinder and laser laser machine, automatic detection and calibration are realized, and real-time monitoring and adjustment are carried out through the central control center.
It improves the accuracy and efficiency of oxygen sensor resistance calibration, reduces the time and cost of manual operation, and ensures the stability and consistency of current output.
Smart Images
Figure CN223065219U_ABST
Abstract
Description
Technical Field
[0001] The utility model specifically relates to the technical field of oxygen sensors, and particularly relates to a test device for calibrating the resistance of a wide-range oxygen sensor. Background Technique
[0002] The output signal of the wide-range oxygen sensor is related not only to the internal chip itself but also to the resistance on the connector. Therefore, calibrating this resistance is an essential detection item in daily work.
[0003] Traditionally, the resistance is obtained by manually and gently rotating the screw on the connector resistance. The main criterion is to make the debugged current curve coincide with the OE output current curve, and then fix the screw thoroughly with glue. Although this operation method is very precise, due to the influence of the usage of the OE sample, the calibration is inevitably not very accurate. At the same time, it is necessary to frequently update the OE sample, which is extremely costly. In addition, due to manual operation, it is necessary to visually observe the coincidence of the two curves before stopping the manual calibration, which is also extremely time-consuming in terms of operation. During later use, the resistance may change due to various factors, thereby affecting the current output of the sensor. For this reason, we provide a test device for calibrating the resistance of a wide-range oxygen sensor. By laser engraving the connector resistance, the detector monitors in real time and sends the monitored values to the central control center, and finally calibrates through the laser engraving machine, which is more convenient to use and effectively makes up for the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a test device for calibrating the resistance of a wide-range oxygen sensor to solve the problems raised in the background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A test device for calibrating the resistance of a wide-range oxygen sensor includes a support plate; there are two support plates, and a guide rail frame is welded on each support plate, and a sliding frame is slidably connected to the guide rail frame; a rotary cylinder is fixed on the sliding frame by bolts, and a plug-in part is connected to the rotating rod of the rotary cylinder in a matching manner. One side of the plug-in part is provided with a U-shaped frame. Secondly, a U-shaped groove for inserting the oxygen sensor is opened on the U-shaped frame; a laser engraving machine is arranged above the U-shaped frame.
[0007] As a further technical solution of the utility model, the laser engraving machine is slidably connected to a transverse sliding frame, and the laser engraving machine is threadedly connected to a transverse lead screw, and the transverse lead screw is in cooperation with a pedestal bearing installed on the transverse sliding frame; one end of the transverse lead screw is in cooperation with the drive shaft of a transverse moving motor, and the transverse moving motor is fixed on the transverse sliding frame by bolts.
[0008] As a further technical solution of the present utility model, the horizontal sliding frame is fixed on the lifting frame by bolts. The lifting frame is slidably connected to the bracket, and the lifting frame is threadedly connected to the lifting screw rod, which is cooperatively connected to the pedestal bearing installed on the bracket.
[0009] As a further technical solution of the present utility model, one end of the top of the lifting screw rod is cooperatively connected to the drive shaft of the lifting motor, and the lifting motor is fixed on the bracket by bolts.
[0010] As a further technical solution of the present utility model, a push cylinder is fixed on the support plate by bolts, and the push rod of the push cylinder is cooperatively connected to the sliding frame; the support plate is fixed on the chassis by bolts, and a U-shaped frame and a bracket are fixed on the chassis by bolts.
[0011] As a further technical solution of the present utility model, a detector is embedded in the U-shaped frame, and the detector is electrically connected to the central control center, and the central control center is embedded in the chassis.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. In the present utility model, the sliding frame moves along the guide rail frame, which is convenient for the plug-in part to move and insert the screws of the resistor. The rotary cylinder drives the plug-in part to rotate, so as to facilitate the detection of the detector. The U-shaped frame plays a bearing role. After the detection is completed, the laser laser above calibrates the oxygen sensor.
[0014] 2. In the present utility model, the horizontal movement motor drives the connected horizontal screw rod to rotate. Under the action of the laser laser being slidably connected to the horizontal sliding frame and threadedly connected to the horizontal screw rod, it will move along the horizontal sliding frame. When detecting at one station, it is convenient for the laser laser to adjust the position and calibrate the oxygen sensor at another station.
[0015] 3. In the present utility model, the drive shaft of the lifting motor drives the connected lifting screw rod to rotate. Under the action of the lifting screw rod being threadedly connected to the lifting frame and the lifting frame being slidably connected to the bracket, the lifting frame will move along the bracket, which is convenient for the laser laser to adjust the position up and down. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.
[0017] Figure 2 is the front view of the present utility model Figure 1
[0018] Figure 3 is the partial structural schematic diagram of the present utility model Figure 1
[0019] Figure 4 is another perspective view in the present utility model Figure 3 .
[0020] Figure 5 is the front view in the present utility model Figure 3 .
[0021] In the figure: 1 - chassis, 2 - central control center, 3 - support plate, 4 - guide rail frame, 5 - sliding frame, 6 - rotary cylinder, 7 - pushing cylinder, 8 - connector, 9 - U-shaped frame, 10 - detector, 11 - support, 12 - lifting frame, 13 - lifting screw rod, 14 - lifting motor, 15 - transverse sliding frame, 16 - laser laser machine, 17 - transverse moving motor, 18 - transverse screw rod. Specific embodiments
[0022] 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 in 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.
[0023] Please refer to Figures 1-5 , in the embodiment of the present utility model, a test device for calibrating the resistance of a wide-range oxygen sensor includes a support plate 3; two support plates 3 are provided, and a guide rail frame 4 is welded on each support plate 3, and a sliding frame 5 is slidably connected to the guide rail frame 4; a rotary cylinder 6 is fixed on the sliding frame 5 by bolts, and a connector 8 is connected to the rotating rod of the rotary cylinder 6, and a U-shaped frame 9 is arranged on one side of the connector 8. Secondly, a U-shaped groove for inserting the oxygen sensor is opened on the U-shaped frame 9; a laser laser machine 16 is arranged above the U-shaped frame 9; the laser laser machine 16 performs laser engraving on the resistance on the docking plug 8 to generate different signal outputs, which are displayed by a computer. When a certain requirement is met, the laser laser stops engraving.
[0024] By adopting the above technical solutions, the sliding frame 5 moves along the guide rail frame 4, which is convenient for the connector 8 to move and insert the screws of the resistance. The rotary cylinder 6 drives the connector 8 to rotate, which is convenient for the detection of the detector 10. The U-shaped frame 9 plays a bearing role. After the detection is completed, the laser laser machine 16 above calibrates the oxygen sensor.
[0025] In this embodiment, the laser engraver 16 is slidably connected to the horizontal sliding frame 15, and the laser engraver 16 is threadedly connected to the horizontal lead screw 18, which is cooperatively connected to the pedestal bearing mounted on the horizontal sliding frame 15; one end of the horizontal lead screw 18 is cooperatively connected to the drive shaft of the horizontal movement motor 17, and the horizontal movement motor 17 is fixed to the horizontal sliding frame 15 by bolts.
[0026] By adopting the above technical solution, the horizontal movement motor 17 drives the connected horizontal lead screw 18 to rotate. Under the action that the laser engraver 16 is slidably connected to the horizontal sliding frame 15 and threadedly connected to the horizontal lead screw 18, it will move along the horizontal sliding frame 15. When detecting at one station, it is convenient to adjust the position of the laser engraver 16 to calibrate the oxygen sensor at another station.
[0027] In this embodiment, the horizontal sliding frame 15 is fixed to the lifting frame 12 by bolts. The lifting frame 12 is slidably connected to the bracket 11, and the lifting frame 12 is threadedly connected to the lifting lead screw 13, which is cooperatively connected to the pedestal bearing mounted on the bracket 11.
[0028] Furthermore, one end of the top of the lifting lead screw 13 is cooperatively connected to the drive shaft of the lifting motor 14, and the lifting motor 14 is fixed to the bracket 11 by bolts.
[0029] By adopting the above technical solution, the drive shaft of the lifting motor 14 drives the connected lifting lead screw 13 to rotate. Under the action that the lifting lead screw 13 is threadedly connected to the lifting frame 12 and the lifting frame 12 is slidably connected to the bracket 11, the lifting frame 12 will move along the bracket 11, facilitating the up and down position adjustment of the laser engraver 16.
[0030] In this embodiment, a push cylinder 7 is fixed to the support plate 3 by bolts, and the push rod of the push cylinder 7 is cooperatively connected to the sliding frame 5; the support plate 3 is fixed to the chassis 1 by bolts, and a U-shaped frame 9 and a bracket 11 are fixed to the chassis 1 by bolts.
[0031] Furthermore, a detector 10 is embedded in the U-shaped frame 9, and the detector 10 is electrically connected to the central control center 2. The central control center 2 displays the detection data in real time. When the signal meets the requirements, the laser engraver stops working; and the central control center 2 is embedded in the chassis 1.
[0032] By adopting the above technical solution, the push cylinder 7 pushes the sliding frame 5 to move, providing power for the movement of the sliding frame 5. After the detector 10 detects the oxygen sensor, it will be sent to the central control center 2 for the convenience of the staff to review.
[0033] The working principle of the utility model is as follows: during use, the sliding frame 5 moves along the guide rail frame 4 to facilitate the movement of the plug-in part 8 for plugging the screws of the resistor. The rotary cylinder 6 drives the plug-in part 8 to rotate, thus facilitating the detection by the detector 10. The U-shaped frame 9 plays a bearing role. After the detection is completed, the laser machine 16 above calibrates the oxygen sensor; the push cylinder 7 pushes the sliding frame 5 to move, providing power for the movement of the sliding frame 5. After the detector 10 detects the oxygen sensor, the detection result will be sent to the central control center 2 for the staff to review; the driving shaft of the lifting motor 14 drives the connected lifting screw rod 13 to rotate. Under the action of the threaded connection between the lifting screw rod 13 and the lifting frame 12 and the sliding connection between the lifting frame 12 and the bracket 11, the lifting frame 12 will move along the bracket 11 to facilitate the up and down position adjustment of the laser machine 16; the lateral movement motor 17 drives the connected lateral screw rod 18 to rotate. Under the action of the sliding connection between the laser machine 16 and the lateral sliding frame 15 and the threaded connection between the laser machine 16 and the lateral screw rod 18, the laser machine 16 will move along the lateral sliding frame 15. When detecting at one station, it is convenient for the laser machine 16 to adjust its position to calibrate the oxygen sensor at another station.
[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. 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 included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0035] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way 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 calibrating the resistance of a wide-range oxygen sensor, characterized in that: It includes a support plate (3); there are two support plates (3) provided, and a guide rail frame (4) is welded on each support plate (3), and a sliding frame (5) is slidably connected to the guide rail frame (4); a rotary cylinder (6) is fixed on the sliding frame (5) by bolts, and a plug-in member (8) is connected in cooperation with the rotating rod of the rotary cylinder (6), and a U-shaped frame (9) is arranged on one side of the plug-in member (8). Secondly, a U-shaped groove for inserting an oxygen sensor is provided on the U-shaped frame (9); a laser beam machine (16) is arranged above the U-shaped frame (9).
2. The test device for calibrating the resistance of a wide-range oxygen sensor according to claim 1, characterized in that: The laser beam machine (16) is slidably connected to a transverse sliding frame (15), and the laser beam machine (16) is threadedly connected to a transverse lead screw (18), and the transverse lead screw (18) is in cooperation with a pedestal bearing installed on the transverse sliding frame (15); one end of the transverse lead screw (18) is in cooperation with the drive shaft of a transverse movement motor (17), and the transverse movement motor (17) is fixed on the transverse sliding frame (15) by bolts.
3. The test device for calibrating the resistance of a wide-range oxygen sensor according to claim 2, characterized in that: The transverse sliding frame (15) is fixed on a lifting frame (12) by bolts, the lifting frame (12) is slidably connected to a support (11), and the lifting frame (12) is threadedly connected to a lifting lead screw (13), and the lifting lead screw (13) is in cooperation with a pedestal bearing installed on the support (11).
4. The test equipment for calibrating the resistance of a wide-range oxygen sensor according to claim 3, characterized in that: The top end of the lifting lead screw (13) is in cooperation with the drive shaft of a lifting motor (14), and the lifting motor (14) is fixed on the support (11) by bolts.
5. The test equipment for calibrating the resistance of a wide-range oxygen sensor according to claim 1, characterized in that: A push cylinder (7) is fixed on the support plate (3) by bolts, and the push rod of the push cylinder (7) is in cooperation with the sliding frame (5); the support plate (3) is fixed on a chassis (1) by bolts, and the U-shaped frame (9) and the support (11) are fixed on the chassis (1) by bolts.
6. The test device for calibrating the resistance of a wide-range oxygen sensor according to claim 5, characterized in that: A detector (10) is embedded on the U-shaped frame (9), the detector (10) is electrically connected to a central control center (2), and the central control center (2) is embedded on the chassis (1).