Urea sensor airtightness detection tool

Abstract

The utility model discloses a urea sensor airtightness detection tool, and belongs to the technical field of urea sensor detection. Comprising a bottom plate, a plurality of supporting columns arranged on the bottom plate, a top plate arranged on the supporting columns, a plurality of protective covers arranged between the bottom plate and the top plate and an upper plugging mechanism arranged on the top plate, and the upper plugging mechanism is used for achieving accurate plugging detection on a test connector at the top of the urea sensor. The positioning mechanism is arranged on the bottom plate, the side blocking mechanism is arranged on the bottom plate and located on one side of the positioning mechanism, and the marking mechanism is arranged on one side of the positioning mechanism and used for marking qualified marks on the urea sensors which are detected to be qualified; the photoelectric sensor arranged on the bottom plate, the auxiliary supporting mechanism arranged on the bottom plate and the control system are integrated in the urea sensor airtightness detection tool and used for controlling actions and detection processes, automatic plugging, detection and marking are achieved through preset control logic, and the detection efficiency and reliability are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of urea sensor detection, and particularly relates to an airtightness detection tool for urea sensors. Background Art

[0002] With the continuous development of modern society, people's living standards have been greatly improved. Especially, people's demand for cars is increasing continuously. In the automotive exhaust gas treatment system, the airtightness of the urea sensor assembly is one of the key factors to ensure the normal operation of the system. If there are problems with the airtightness of the automotive urea pipeline, the service life of the car will be greatly reduced.

[0003] In the prior art, traditional airtightness detection methods for urea sensors usually cannot perform airtightness detection on the side test holes and upper test holes of the urea sensor simultaneously, and the qualified mark depends on manual operation, which is not only inefficient but also difficult to ensure the accuracy and consistency of detection. Therefore, there is an urgent need in the market for an airtightness detection tool for urea sensors that can quickly detect and accurately mark to improve production efficiency and product quality. Summary of the Utility Model

[0004] The utility model provides an airtightness detection tool for urea sensors to solve the above problems.

[0005] The technical solution adopted by the utility model is as follows: An airtightness detection tool for urea sensors, comprising:

[0006] A bottom plate;

[0007] A plurality of support columns, arranged on the bottom plate;

[0008] A top plate, arranged on the support columns;

[0009] A plurality of protective covers, arranged between the bottom plate and the top plate;

[0010] An upper plugging mechanism, arranged on the top plate, for realizing precise plugging detection of the top test joint of the urea sensor;

[0011] A positioning mechanism, arranged on the bottom plate, for precisely positioning the urea sensor to be tested;

[0012] A side plugging mechanism, arranged on the bottom plate and on one side of the positioning mechanism;

[0013] A marking mechanism, arranged on one side of the positioning mechanism, for marking a qualified mark on the qualified urea sensor;

[0014] A photoelectric sensor, arranged on the bottom plate, for detecting the position and state of the urea sensor;

[0015] An auxiliary support mechanism, which is arranged on the bottom plate and used to support the urea sensor to be tested;

[0016] A control system, which is integrated in the airtightness detection tooling of the urea sensor and used to control the action and detection process.

[0017] Preferably, the upper plugging mechanism includes: an upper plugging cylinder arranged on the top plate, and a plurality of upper plugging stoppers arranged at the output end of the upper plugging cylinder.

[0018] Preferably, the side plugging mechanism includes: a support block arranged on the bottom plate, a side plugging cylinder arranged on the support block, and a plurality of side plugging stoppers arranged at the output end of the side plugging cylinder;

[0019] O-rings are arranged in the side plugging stoppers and the upper plugging stoppers.

[0020] Preferably, the positioning mechanism has a first positioning groove and a second positioning groove that match the shape of the urea sensor to be tested, and a plurality of positioning pins are arranged between the first positioning groove and the second positioning groove.

[0021] Preferably, the marking mechanism includes: a support plate arranged on the bottom plate, a marking cylinder arranged on the support plate, and a marking head arranged at the output end of the marking cylinder.

[0022] Preferably, the auxiliary support mechanism includes: a guide rail arranged on the bottom plate, a slider slidably connected to the guide rail, and a support frame arranged on the slider.

[0023] The beneficial effects of the present utility model: Compared with the prior art, the present utility model is provided with an upper plugging mechanism and a side plugging mechanism, and simultaneously performs airtightness detection on the side test holes and upper test holes of the urea sensor; a marking mechanism is provided. After the test is qualified, the marking cylinder extends, and the marking head dots on the surface of the product; if the product is unqualified, no qualified mark will be made, and at the same time, the upper plugging cylinder and the side plugging cylinder will remain in a pressed state, and the product cannot be taken out. A manual button needs to be unlocked to release the cylinder; a photoelectric sensor is provided to detect the position and state of the urea sensor, ensuring the accuracy and consistency of the detection. Description of the Drawings

[0024] Figure 1 is a structural schematic diagram of the present utility model Figure 1 ;

[0025] Figure 2 is a structural schematic diagram of the present utility model Figure 2 。

[0026] In the attached drawings, the list of components represented by each reference numeral is as follows: bottom plate 1, support column 2, top plate 3, protective cover 4, upper plugging mechanism 5, positioning mechanism 6, side plugging mechanism 7, marking mechanism 8, photoelectric sensor 9, auxiliary support mechanism 10, upper plugging cylinder 11, upper plugging head 12, support block 13, side plugging cylinder 14, side plugging head 15, first positioning groove 16, second positioning groove 17, positioning pin 18, support plate 19, marking cylinder 20, marking head 21, guide rail 22, slider 23, support frame 24. Detailed implementation manners

[0027] The following further describes the present utility model in conjunction with the specification and embodiments, which can enable those skilled in the art to understand the present utility model more comprehensively, but does not limit the present utility model in any way.

[0028] A urea sensor airtightness detection tooling includes: a bottom plate 1, four support columns 2 arranged on the bottom plate 1, a top plate 3 arranged on the support columns 2 to form a stable support structure, two protective covers 4 arranged between the bottom plate 1 and the top plate 3 to protect the safety of operators; an upper plugging mechanism 5 arranged on the top plate 3 for precisely plugging and detecting the top test joint of the urea sensor; a positioning mechanism 6 arranged on the bottom plate 1 for precisely positioning the urea sensor to be tested; a side plugging mechanism 7 arranged on the bottom plate 1 and on one side of the positioning mechanism 6, a marking mechanism 8 arranged on one side of the positioning mechanism 6 for marking a qualified mark on the qualified urea sensor; a photoelectric sensor 9 arranged on the bottom plate 1 for detecting the position and state of the urea sensor. The photoelectric sensor 9 emits and receives light beams to monitor the arrival of the urea sensor in real time, ensuring the accuracy of the plugging and detection operations; an auxiliary support mechanism 10 arranged on the bottom plate 1 for supporting the urea sensor to be tested. The control system is integrated in the urea sensor airtightness detection tooling for controlling the actions and detection processes. Through the preset control logic, automated plugging, detection, marking, and unlocking steps are realized, improving the detection efficiency and reliability.

[0029] In a further embodiment, the upper plugging mechanism 5 includes: an upper plugging cylinder 11 arranged on the top plate 3, and four upper plugging heads 12 arranged at the output end of the upper plugging cylinder 11. The side plugging mechanism 7 includes: a support block 13 arranged on the bottom plate 1, a side plugging cylinder 14 arranged on the support block 13, and a side plugging head 15 arranged at the output end of the side plugging cylinder 14; O-rings are arranged in the side plugging head 15 and the upper plugging head 12 to ensure the airtightness of the plugging, prevent gas leakage, and ensure the accuracy of the detection results. The numbers of the upper plugging head 12 and the side plugging head 15 will be changed according to different products.

[0030] In a further embodiment, the positioning mechanism 6 has a first positioning groove 16 and a second positioning groove 17 that match the outer shape of the urea sensor to be tested. A number of positioning pins 18 are provided between the first positioning groove 16 and the second positioning groove 17. By adjusting the position and number of the positioning pins 18 and replacing the positioning grooves of different sizes, precise positioning of different products is achieved.

[0031] In a further embodiment, the marking mechanism 8 includes: a support plate 19 provided on the base plate 1, a marking cylinder 20 provided on the support plate 19, and a marking head 21 provided at the output end of the marking cylinder 20. The marking head 21 can leave a clearly visible mark on the surface of the product. After the test is qualified, the marking cylinder 20 extends, and the marking head 21 dots on the surface of the product; if the product is unqualified, the qualified mark will not be made. At the same time, the upper plugging cylinder 11 and the side plugging cylinder 14 will remain in the pressed state, and the product cannot be taken out. A manual button needs to be unlocked to release the cylinder.

[0032] In a further embodiment, the auxiliary support mechanism 10 includes: a guide rail 22 provided on the base plate 1, a slider 23 slidably connected to the guide rail 22, and a support frame 24 provided on the slider 23 for supporting the other end of the urea sensor to be tested to ensure the stable fixation of the urea sensor to be tested.

[0033] The working principle of the present utility model is as follows: After the tooling is started, the side plugging cylinder 14 extends, and the side plugging head 15 blocks the side test hole of the product to be tested. After the side plugging cylinder 14 is in place, the upper plugging cylinder 11 extends, and the upper plugging head 12 simultaneously plugs the four test connectors on the upper surface of the product to be tested. Under the control of the control system, if the test is qualified, the marking cylinder 20 extends, and the marking head 21 dots on the surface of the product. If the product is unqualified, the qualified mark will not be made. At the same time, the upper plugging cylinder 11 and the side plugging cylinder 14 will remain in the pressed state, and the product cannot be taken out. A manual button needs to be unlocked to release the cylinder. After the test is completed, the upper plugging cylinder 11 and the side plugging cylinder 14 retract.

[0034] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model, and they should all be covered by the scope of the claims and the description of the present utility model.

Claims

1. A urea sensor air tightness detection tool, characterized in that: include: Base plate; A plurality of pillars are arranged on the bottom plate; A top plate, disposed on the support pillar; A plurality of protective covers are arranged between the bottom plate and the top plate; An upper plugging mechanism, disposed on the top plate, for realizing accurate plugging detection of the top test joint of the urea sensor; A positioning mechanism, disposed on the bottom plate, for accurately positioning the urea sensor to be tested; A side blocking mechanism is arranged on the bottom plate and is located on one side of the positioning mechanism; A marking mechanism, disposed on one side of the positioning mechanism, for marking a qualified mark on the urea sensor that has passed the test; A photoelectric sensor, disposed on the bottom plate, for detecting the position and state of the urea sensor; An auxiliary supporting mechanism, disposed on the bottom plate, for supporting the urea sensor to be tested; A control system is integrated into the urea sensor air tightness detection tooling and is used to control actions and detection processes.

2. The urea sensor air tightness detection tool according to claim 1, characterized in that: The upper blocking mechanism comprises: an upper blocking cylinder arranged on the top plate, and a plurality of upper blocking plugs arranged at the output end of the upper blocking cylinder.

3. The urea sensor air tightness detection tool according to claim 2, characterized in that: The side blocking mechanism comprises: a support block arranged on the bottom plate, a side blocking cylinder arranged on the support block, and a plurality of side blocking plugs arranged at the output end of the side blocking cylinder; O-rings are arranged in the side sealing plug and the upper sealing plug.

4. The urea sensor air tightness detection tool according to claim 1, characterized in that: The positioning mechanism comprises a first positioning groove and a second positioning groove which match the shape of the urea sensor to be tested, and a plurality of positioning pins are arranged between the first positioning groove and the second positioning groove.

5. The urea sensor air tightness detection tool according to claim 1, characterized in that: The marking mechanism comprises: a support plate arranged on the bottom plate, a marking cylinder arranged on the support plate, and a marking head arranged at the output end of the marking cylinder.

6. The urea sensor air tightness detection tool according to claim 1, characterized in that: The auxiliary support mechanism comprises: a guide rail arranged on the bottom plate, a slider slidably connected to the guide rail, and a support frame arranged on the slider.

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