Split type nitrogen-oxygen sensor calibration equipment

Abstract

The utility model discloses split type nitrogen oxygen sensor calibration equipment which comprises two vertical plates, a connecting plate is installed at the rear ends of the two vertical plates, and a PC upper computer, an alarm display lamp and a three-way gas controller are installed on the connecting plate. The first supporting plate is installed on the inner side faces of the two vertical plates, and a calibration plate is installed at the top of the first supporting plate; one end of the gas pipe is connected with the three-way gas controller; the other end of the air pipe is connected with a reinforcing head, and a reinforcing part is arranged on the reinforcing head; the reinforcing part comprises a spring and a movable block, the spring is arranged on the inner side face of the reinforcing head, the movable block is fixed to one end of the spring, and one end of the movable block is connected with a rubber pad; the utility model has the beneficial effects that the control efficiency is improved, and the labor and time cost is reduced; by using multiple groups of calibration, the production time is saved; and through split type calibration, defective products are prevented from entering a production link, and the yield is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of production, processing and manufacturing of nitrogen and oxygen sensors, and specifically relates to a split type nitrogen and oxygen sensor calibration device. Background Art

[0002] When traditional test equipment is calibrated and used, the product needs to be fully assembled and the semi-finished product needs to be calibrated and tested. If defective products appear in the production process, the assembled semi-finished products need to be disassembled, replaced and repaired. This process requires professional maintenance personnel, has high technical requirements for operators, and is time-consuming and labor-intensive. At the same time, the assembled products need to be disassembled and repaired for the second time, which requires the high temperature of hot air guns and electric soldering irons, which can easily cause potential quality hazards to the products and the quality risk of disassembly and scrapping. Utility Model Content

[0003] The utility model aims to provide a split nitrogen and oxygen sensor calibration device, which eliminates secondary maintenance and disassembly of products, improves product quality, and reduces unnecessary man-hours.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: a split nitrogen and oxygen sensor calibration device, comprising

[0005] A vertical plate, wherein two vertical plates are provided, and a connecting plate is installed at the rear ends of the two vertical plates, and a PC host computer, an alarm display light and a three-way gas controller are installed on the connecting plate;

[0006] A first support plate, wherein the first support plate is mounted on the inner side surfaces of the two vertical plates, and a calibration plate is mounted on the top of the first support plate;

[0007] A trachea, one end of which is connected to a three-way gas controller.

[0008] Preferably, the other end of the trachea is connected to a reinforcement head, and a reinforcement component is provided on the reinforcement head.

[0009] Preferably, the reinforcing component includes a spring and a movable block, the spring is arranged on the inner side of the reinforcing head, the movable block is fixed to one end of the spring, and one end of the movable block is connected to a rubber pad.

[0010] Preferably, the movable block and the rubber pad are both arc-shaped structures, and the rubber pad and the movable block are bonded and connected.

[0011] Preferably, it further comprises a second support plate, wherein the second support plate is installed on the inner side surfaces of the two vertical plates.

[0012] Preferably, a collection box is placed on the second support plate, and a plurality of limiting grooves are provided on the inner bottom of the collection box, and limiting components are provided on the collection box and the second support plate.

[0013] Preferably, the limiting component comprises an insert block, the insert block is arranged at the bottom of the collection box, and a slot for inserting the insert block is formed on the top of the second support plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Improve control efficiency and reduce labor and time costs;

[0016] Use multiple sets of calibration to save production time;

[0017] Split calibration prevents defective products from entering the production process and improves the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the utility model;

[0020] Figure 3 For the utility model Figure 2 Schematic diagram of the enlarged structure of area B;

[0021] Figure 4 It is a side view structural diagram of the reinforcement head of the utility model;

[0022] In the figure: 1. vertical plate; 2. first support plate; 21. calibration plate; 3. second support plate; 31. slot; 4. collection box; 41. limiting slot; 42. plug-in block; 5. connecting plate; 51. PC host computer; 52. alarm display light; 6. air pipe; 7. reinforcement head; 71. spring; 8. movable block; 81. rubber pad. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] See also Figure 1 , Figure 2 and Figure 4 , which is the first embodiment of the utility model, and provides a split nitrogen and oxygen sensor calibration device, including

[0026] Vertical plate 1, two vertical plates 1 are provided, the two vertical plates 1 are parallel, and a connecting plate 5 is installed at the rear end of the two vertical plates 1. The connecting plate 5 and the vertical plates 1 are spliced ​​to form a "U"-shaped structure, and a PC host computer 51, an alarm display light 52 and a three-way gas controller are installed on the connecting plate 5; the PC host computer 51 communicates with the external device, and the alarm display light 52 is used to display an alarm in case of an abnormality; the PC host computer 51 controls the three-way gas controller to output gases of different ratios according to relevant settings;

[0027] The first support plate 2 is installed on the inner side of the two vertical plates 1. The strength of the two vertical plates 1 is increased by the first support plate 2. A calibration plate 21 is installed on the top of the first support plate 2. The first support plate 2 increases the support for the calibration plate 21. The nitrogen oxygen sensor that needs to be calibrated is placed on the calibration plate 21;

[0028] The air pipe 6, one end of the air pipe 6 is connected to the three-way gas controller, and the other end of the air pipe 6 is connected to a reinforcing head 7, which is inserted into the cylindrical head of the nitrogen oxygen sensor to be calibrated, and a reinforcing component is arranged on the reinforcing head 7, and the reinforcing component includes a spring 71 and a movable block 8, the spring 71 is arranged on the inner side of the reinforcing head 7, so that the spring 71 is added, and the movable block 8 is fixed to one end of the spring 71, so that the movable block 8 is added, and one end of the movable block 8 is connected to a rubber pad 81, and the movable block 8 and the rubber pad 81 are both provided with multiple, and when the rubber pad 81 is clamped on the cylindrical head of the nitrogen oxygen sensor, the wear on the cylindrical head is reduced; when the reinforcing head 7 is inserted into the cylindrical head of the nitrogen oxygen sensor, the cylindrical head first squeezes the rubber pad 81, and after the rubber pad 81 is squeezed, it drives the movable block 8 to compress the spring 71, and the spring 71 is compressed and resets, driving the movable block 8 to move, and making multiple rubber pads 81 clamped on the cylindrical head, so as to achieve a reinforcement effect.

[0029] In this embodiment, preferably, the movable block 8 and the rubber pad 81 are both arc-shaped structures, which better match the columnar head, and the rubber pad 81 and the movable block 8 are bonded and connected, which helps to achieve a stable installation of the rubber pad 81 and the movable block 8.

[0030] In this embodiment, preferably, a second support plate 3 is further included. The second support plate 3 is installed on the inner side surfaces of the two vertical plates 1. The second support plate 3 further increases the firmness of the splicing of the two vertical plates 1.

[0031] This application uses a split tooling, installs the circuit board on the tooling, uses a probe to hold the circuit board, uses wire to lead out the position where welding is originally required, and then clips on the sensor probe and connector accordingly. It can be quickly disassembled and assembled without welding, and parameter calibration is performed through a PC host computer. This calibration equipment can calibrate 6 groups of sensors each time. After the calibration test is completed, the assembled defective products can be stuck in the calibration link before assembly and production: the original process is to calibrate after assembly. If there are defective products, they have already been assembled and need to be disassembled. After using this equipment, calibration is performed first and then assembly. There is no need for welding when calibrating first. If there are defective products, they will be directly screened out and will not flow into the assembly link. This ensures that every circuit board is functional when it comes to the assembly link, greatly improving production efficiency and personnel configuration.

[0032] Example 2

[0033] See also Figure 1-Figure 4 , which is the second embodiment of the utility model, is based on the previous embodiment, and the difference is that:

[0034] A collecting box 4 is placed on the second supporting plate 3, and a plurality of limiting grooves 41 are provided on the inner bottom of the collecting box 4. The lower part of the calibrated nitrogen oxygen sensor can be placed in the limiting groove 41 of the collecting box 4, thereby increasing the stability of the placement of the nitrogen oxygen sensor. A limiting component is provided on the collecting box 4 and the second supporting plate 3, and the limiting component includes an insert block 42. The insert block 42 is provided at the bottom of the collecting box 4, thereby increasing the installation of the insert block 42. A slot 31 is provided on the top of the second supporting plate 3 for inserting the insert block 42. The cooperation between the insert block 42 and the slot 31 increases the stability of the collection box 4 placed on the second supporting plate 3.

[0035] The working principle and use process of the utility model are as follows: the nitrogen oxygen sensor to be calibrated is placed on the calibration plate 21; the reinforcement head 7 is inserted into the cylindrical head of the nitrogen oxygen sensor; the whole machine is powered on and a self-test is first performed; the PC host computer 51 communicates with the external device, the ID and device information are read, the device status is confirmed, and the calibration instruction is waited for, the calibration starts, and the instruction is issued; the PC host computer 51 controls the circuit board to start working; the working status is restored, an alarm will be displayed if there is an abnormality, a single channel will stop, and the others will work normally; the PC host computer 51 controls the three-channel gas controller to output gases of different ratios according to relevant settings; the circuit board collects data, records it, and calibrates the output information after calculation through software; it is compared with the sample parameters; the comparison information is sent back, and the PC host computer 51 controls the circuit board to write the calibration information.

[0036] Although the embodiments of the present invention have been shown and described, as detailed above, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A split nitrogen and oxygen sensor calibration device, characterized in that: include A vertical plate (1), wherein two vertical plates (1) are provided, and a connecting plate (5) is installed at the rear ends of the two vertical plates (1), and a PC host computer (51), an alarm display light (52) and a three-way gas controller are installed on the connecting plate (5); A first support plate (2), the first support plate (2) being mounted on the inner side surfaces of the two vertical plates (1), and a calibration plate (21) being mounted on the top of the first support plate (2); An air pipe (6), one end of which is connected to a three-way gas controller.

2. The split nitrogen and oxygen sensor calibration device according to claim 1 is characterized in that: The other end of the air pipe (6) is connected to a reinforcement head (7), and a reinforcement component is provided on the reinforcement head (7).

3. The split nitrogen and oxygen sensor calibration device according to claim 2 is characterized in that: The reinforcing component comprises a spring (71) and a movable block (8); the spring (71) is arranged on the inner side of the reinforcing head (7); the movable block (8) is fixed to one end of the spring (71); and one end of the movable block (8) is connected to a rubber pad (81).

4. The split nitrogen and oxygen sensor calibration device according to claim 3 is characterized in that: The movable block (8) and the rubber pad (81) are both arc-shaped structures, and the rubber pad (81) and the movable block (8) are bonded and connected.

5. The split nitrogen and oxygen sensor calibration device according to claim 1 is characterized in that: It also comprises a second support plate (3), wherein the second support plate (3) is mounted on the inner side surfaces of the two vertical plates (1).

6. The split type nitrogen and oxygen sensor calibration device according to claim 5 is characterized in that: A collection box (4) is placed on the second support plate (3), and a plurality of limiting grooves (41) are provided on the inner bottom of the collection box (4). Limiting components are provided on the collection box (4) and the second support plate (3).

7. The split nitrogen and oxygen sensor calibration device according to claim 6 is characterized in that: The limiting component comprises an insert block (42), the insert block (42) is arranged at the bottom of the collection box (4), and the top of the second support plate (3) is provided with a slot (31) for inserting the insert block (42).

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