Automatic production test fixture for multipath sensor of air compressor

Abstract

The utility model discloses an automatic production test fixture for an air compressor multi-path sensor, and relates to the technical field of sensor testing, and the automatic production test fixture comprises a test box, joints A are fixedly installed at one side of the test box at equal intervals, a limiting column is fixedly connected below one end of each joint A, the limiting column is rotatably connected with a joint B, and a plurality of interfaces are annularly formed in the outer side surface of each joint B at equal intervals. A plurality of sealing grooves are annularly formed in the inner side face of the connector B at equal intervals, a connector movably penetrating through the connector A is connected to the connector in a clamped mode, a plurality of connecting columns are annularly and fixedly connected to the inner side face of the connector at equal intervals, limiting plates are fixedly connected to the ends of the connecting columns, and limiting rods movably penetrate through the limiting plates. Through structural cooperation among the joint B, the joint A, the connector and other components, quick switching of the interfaces can be easily realized by rotating the joint B, so that different sensor main bodies can be quickly connected to the corresponding interfaces, the time for connecting the sensors one by one is greatly saved, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of sensor testing, in particular to an automatic production test fixture for a multi-channel sensor of an air compressor. BACKGROUND

[0002] The pressure sensor on the air compressor is mainly used for monitoring the pressure change of the inside or output end of the compressor, and works on the basis of the piezoresistive effect or the capacitive effect. Taking the piezoresistive effect as an example, when pressure acts on the sensitive element of the sensor, the resistance of the silicon wafer will change, and through the measurement of the resistance change and the signal conversion circuit, an electric signal corresponding to the pressure can be obtained.

[0003] The existing multi-channel sensor is produced simultaneously, the test efficiency is low due to different connector models, and the existing air compressor sensor test device has problems such as single test method, complicated operation process, limited data acquisition and analysis capability, etc., which leads to low test efficiency and is difficult to meet the demand of modern industry for accurate and rapid detection of air compressor performance, so improvement and optimization are needed to improve the accuracy and efficiency of the test, so as to better guarantee the stable operation and performance improvement of the air compressor. CONTENT OF THE INVENTION

[0004] In order to improve the problem of low test efficiency of multi-channel sensor production, the application provides an automatic production test fixture for a multi-channel sensor of an air compressor.

[0005] The automatic production test fixture for a multi-channel sensor of an air compressor provided by the application adopts the following technical scheme:

[0006] An automatic production test fixture for a multi-channel sensor of an air compressor, comprising a bottom plate and a sensor main body, the top of the bottom plate is fixedly installed with an air compressor, the air compressor is connected with a test box through a pipeline, a connector A is fixedly installed on one side of the test box, a limiting column is fixedly connected below one end of the connector A, a connector B is rotatably connected with the limiting column, a plurality of interfaces are annularly and equidistantly arranged on the outer side surface of the connector B, a plurality of sealing grooves are annularly and equidistantly arranged on the inner side surface of the connector B, a connecting head which is movably penetrated by the connector A is clamped and connected at the interface, a plurality of connecting columns are annularly and equidistantly fixedly connected on the inner side surface of the connecting head, a limiting plate is fixedly connected at the end of the connecting columns, and a limiting rod is movably penetrated by the limiting plate.

[0007] By adopting the above technical scheme, the device can realize flexible connection of multiple interfaces by means of the air compressor for conveying gas to the test box, the connector A and the rotatable connector B and their related matching connecting components, so as to conveniently connect a variety of different models of sensors for testing, transmission and other functions.

[0008] Preferably, one end of the compression spring A is fixedly connected with a positioning block, and the outer peripheral surface of the limiting rod is sleeved with the compression spring A abutting against the limiting plate and the positioning block at both ends.

[0009] By adopting the above technical scheme, the installation of the compression spring A can provide horizontal transverse force for the connector, the connecting column and the limiting plate.

[0010] Preferably, a through hole is formed in the middle of the connector, and the connector is made of hard rubber material as a whole.

[0011] By adopting the above technical scheme, the connector made of rubber can achieve better sealing effect.

[0012] Preferably, the outer peripheral surface of the limiting column is sleeved with the compression spring B abutting against the connector B and the limiting column at both ends.

[0013] By adopting the above technical scheme, the connector B and the connector can generate extrusion force, thereby improving the sealing effect.

[0014] Preferably, a plurality of tooth grooves are annularly and equidistantly formed in the outer peripheral surface of the connector B.

[0015] By adopting the above technical scheme, the tooth grooves can facilitate the rotation of the connector B.

[0016] Preferably, the top end of the test box is fixedly connected with a detection box, the inside of the detection box is fixedly connected with support blocks symmetrically at the bottom, and the top of the two support blocks is fixedly connected with a detection plate.

[0017] By adopting the above technical scheme, the detection plate can test a plurality of sensors connected to the detection plate at the same time.

[0018] Preferably, a plurality of plugs for connecting with the sensor body are fixedly connected to the inner side of the detection box at equal intervals, and the plugs are electrically connected with the detection plate.

[0019] By adopting the above technical scheme, the installation of the plug can enable the sensor body to be quickly assembled.

[0020] Preferably, a plurality of lamp holders are fixedly connected to the top of the detection box at equal intervals, and the lamp holders are electrically connected with the detection plate.

[0021] By adopting the above technical scheme, the color of the lamp holder can be used to judge the quality of the sensor body.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. Through the structural cooperation between the joint B, joint A, connecting head and other components, the quick switching of the interface can be easily realized by rotating the joint B, and the extrusion force can be generated when the interface is clamped and connected, which effectively enhances the sealing effect, so that different sensor bodies can be quickly connected to the corresponding interface without complex installation steps, greatly saving the time of connecting sensors one by one and improving the detection efficiency.

[0024] 2. By connecting the computer host and setting the safety threshold, cooperating with the air compressor to generate compressed gas to test the sensor body, the safety threshold of the sensor can be intuitively displayed on the host, and when the safety threshold exceeds the standard threshold, the corresponding lamp holder will flash to remind, which improves the efficiency of sensor detection and the timeliness of feedback of detection results. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall top view structure of the present application file;

[0026] Figure 2 It is a schematic diagram of the overall side view structure of the present application file;

[0027] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the present application file;

[0028] Figure 4 It is a schematic diagram of the cross-sectional structure of joint A of the present application file;

[0029] Figure 5 It is a schematic diagram of the cross-sectional structure of the connecting head of the present application file;

[0030] Figure 6 It is a schematic diagram of the structure of joint B of the present application file;

[0031] Figure 7 It is a schematic diagram of the structure of the interface and the sealing groove of the present application file.

[0032] Reference signs: 1, bottom plate; 2, air compressor;

[0033] 3, test box; 301, joint A; 302, limiting column; 3020, compression spring B; 303, joint B; 3030, interface; 3031, sealing groove; 304, connecting head; 305, connecting column; 306, limiting plate; 307, limiting rod; 308, compression spring A; 309, positioning block;

[0034] 4, detection box; 401, support block; 402, detection plate; 403, plug; 404, lamp holder;

[0035] 5, pressure gauge; 6, sensor body. Detailed Implementation

[0036] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0037] The device's "up, down, left, right" perspectives are... Figure 1 The orientation of the attached diagram is the reference.

[0038] This application discloses an automated production and testing fixture for a multi-channel sensor for an air compressor.

[0039] Reference Figures 4-7 An automated production and testing fixture for a multi-channel air compressor sensor includes a base plate 1 and a sensor body 6. The top of the base plate 1 is fixedly connected to the mounting base of an air compressor 2. The gas output end of the air compressor 2 is connected to one side of a test chamber 3 via a pipe. A circular hole is provided on the inner side of the test chamber 3, and no fewer than eight connectors A301 are fixedly installed at the circular hole. A limiting post 302 is fixedly connected to the lower part of the connector A301 away from the test chamber 3. The limiting post 302 is made of two columns of different diameters welded together. The limiting post 302 movably passes through the circular hole in the middle of the connector B303. Three interfaces 3030 for connecting to the sensor body 6 are provided at equal intervals on the outer side of the connector B303. Two sealing grooves 3031 are provided at equal intervals on the inner side of the connector B303. Connecting heads 304 are engaged at the interfaces 3030. Connecting heads 304 are connected to connectors A301. The inner side of the connector 304 is circumferentially and equidistantly connected to six connecting posts 305 inside the connector A301. The ends of the connecting posts 305 are fixedly connected to a limiting plate 306 with the same outer diameter as the connector 304. A limiting hole is opened in the middle of the limiting plate 306. A limiting rod 307 is movably connected through the limiting hole. The end of the limiting rod 307 away from the limiting plate 306 is fixedly connected to a positioning block 309 welded to the connector A301 at both ends. A compression spring A308 is sleeved on the outer circumferential surface of the limiting rod 307. One end of the compression spring A308 abuts against the limiting plate 306, and the compression spring A308 abuts against the positioning block 309 away from the limiting plate 306. A compression spring B3020 is sleeved on the outer circumferential surface of the limiting post 302. One end of the compression spring B3020 abuts against the connector B303, and the other end of the compression spring B3020 abuts against the end of the limiting post 302.

[0040] First take out the sensor body 6, then according to the connecting part shape of the sensor body 6 is installed on the interface 3030 outside the joint B303, then through the rotation joint B303, under the action of the limiting column 302 makes the joint B303 in the end of joint A301 rotation, at the same time, because the connecting head 304 and the interface 3030 are all hemispherical surface, in the process of rotation after extrusion, will make the connecting head 304, connecting column 305 and limiting plate 306 on the limiting rod 307 to one side, so as to extrude the compression spring A308, make the joint B303 to one side, so as to extrude the compression spring B3020, so that the joint 304 will be with its one interface 3030 off, when the interface 3030 connected with the sensor body 6 and the connecting head 304 clamping connection, under the action of compression spring A308 and compression spring B3020, make the connecting head 304 and joint B303 can produce extrusion force, so as to achieve better sealing effect, so as to complete the interface 3030 quick switching, when the interface 3030 does not need to use, through the rotation joint B303, make the sealing groove 3031 clamping connection in the end of the connecting head 304, so as to seal the connecting head 304.

[0041] It should be noted that the test box 3 is installed at the bottom of the operating table, and the operating table is installed on the bottom plate 1.

[0042] Referring to Figures 1-3 The middle of the connecting head 304 is provided with a through hole communicated with the inside of the joint A301, and the connecting head 304 is made of hard rubber material. The rubber material can produce slight deformation after being extruded, so as to improve the sealing effect. The outer surface of the joint B303 is provided with a tooth groove for improving the friction of the outer surface of the joint B303. The top end of the test box 3 is fixedly connected with a detection box 4 having a side surface flush with the side surface of the test box 3. The inside of the detection box 4 is symmetrically fixedly connected with a horizontally installed supporting block 401. The top of the two supporting blocks 401 is fixedly installed with a detection plate 402 through bolts. The inner side of the detection box 4 is fixedly connected with a plug 403 corresponding to the number of joint B303. The plug 403 is inserted with the data transmission end of the sensor body 6. The top of the detection box 4 is fixedly connected with a lamp holder 404 corresponding to the number of joint B303. The plug 403 and the lamp holder 404 are electrically connected with the detection plate 402.

[0043] The data transmission end of the sensor body 6 is connected to the plug 403, the serial port USB on the detection plate 402 is connected to the computer host computer, and the safety threshold of the test is set. Then power is supplied to the air compressor 2 to make the test box 3 produce compressed gas. At this time, the pressure gauge 5 will produce a numerical change. The sensor body 6 is tested, and the safety threshold generated will be displayed on the host computer. When the safety threshold is greater than the standard threshold, the corresponding lamp holder 404 will flash, reminding that the corresponding sensor body 6 is not up to standard.

[0044] It should be noted that the air compressor 2, the detection plate 402 and the pressure gauge 5 are all prior art, and the connection mode of the external control device is also prior art and mature. Therefore, the specific connection relationship will not be described in detail, and the existing connection assembly can be installed for use

[0045] The implementation principle of the air compressor multi-channel sensor automatic production test fixture according to the embodiment of the application is as follows: first, the sensor body 6 is installed on the interface 3030 outside the joint B 303 according to the shape of the connection part of the sensor body 6. The joint B 303 is rotated, and under the action of the limiting column 302, the joint B 303 is rotated at the end of the joint A 301. The hemispherical structure of the connecting head 304 and the interface 3030 is used. Rotational extrusion will cause horizontal displacement of the connecting head 304, the connecting column 305 and the limiting plate 306, and extrusion of the compression spring A 308 and the compression spring B 3020, so as to realize the disengagement of the connecting head 304 from the original interface 3030. When the target interface 3030 is clamped, the extrusion force generated by the two compression springs achieves better sealing effect, the interface 3030 is quickly switched, and then the data transmission end of the sensor body 6 is connected to the plug 403. The serial port USB on the detection plate 402 is connected to the computer host computer and the safety threshold is set. The air compressor 2 is powered to make the test box 3 produce compressed gas. The safety threshold of the sensor body 6 after testing is displayed on the host computer. When the safety threshold is greater than the standard threshold, the corresponding lamp holder 404 flashes to remind that it is not up to standard, so that the rapid detection of different models of sensor bodies 6 is completed.

[0046] The above is only an optional embodiment of the present disclosure and is not used to limit the present disclosure. For those skilled in the art, the present disclosure can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. An automated production and testing fixture for a multi-channel sensor of an air compressor, characterized in that: Including the bottom plate (1) and sensor body (6), the top of the bottom plate (1) is fixedly installed with an air compressor (2), the air compressor (2) is connected with a test box (3) through a pipeline, a joint A (301) is fixedly installed on one side of the test box (3), a limiting column (302) is fixedly connected to the lower end of the joint A (301), a joint B (303) is rotatably connected to the limiting column (302), a plurality of interfaces (3030) are annularly and equidistantly formed on the outer side surface of the joint B (303), a plurality of sealing grooves (3031) are annularly and equidistantly formed on the inner side surface of the joint B (303), the interface (3030) is clamped and connected with a connecting head (304) movably penetrating the joint A (301), a plurality of connecting columns (305) are fixedly connected to the inner side surface of the connecting head (304), a limiting plate (306) is fixedly connected to the end of the connecting column (305), and the limiting plate (306) movably penetrates a limiting rod (307).

2. The automatic production test fixture for a multi-channel sensor of an air compressor according to claim 1, characterized in that: The outer peripheral surface of the limiting rod (307) is sleeved with a compression spring A (308), one end of the compression spring A (308) is fixedly connected with a positioning block (309), and the outer peripheral surface of the limiting rod (307) is sleeved with the compression spring A (308) abutting against the limiting plate (306) and the positioning block (309) at both ends.

3. The automatic production test fixture for a multi-channel sensor of an air compressor according to claim 1, characterized in that: A through hole is formed in the middle of the connecting head (304), and the connecting head (304) is made of hard rubber material as a whole.

4. The automatic production test fixture for a multi-sensor of an air compressor machine of claim 1, wherein: The outer peripheral surface of the limiting column (302) is sleeved with a compression spring B (3020) abutting against the joint B (303) and the limiting column (302) at both ends.

5. The automatic production test fixture for a multi-sensor of an air compressor machine of claim 1, wherein: The outer peripheral surface of the joint B (303) is annularly and equidistantly provided with a gear slot.

6. The automatic production test fixture for a multi-sensor of an air compressor machine of claim 1, wherein: The top end of the test box (3) is fixedly connected with a detection box (4), the inside of the detection box (4) is fixedly connected with a support block (401) symmetrically, and the top of the two support blocks (401) is fixedly connected with a detection plate (402).

7. The automatic production test fixture for a multi-channel sensor of an air compressor according to claim 6, characterized in that: A plurality of plugs (403) for connecting with the sensor body (6) are fixedly connected to the inner side surface of the detection box (4), and the plug (403) is electrically connected with the detection plate (402).

8. The automatic production test fixture for a multi-sensor of an air compressor machine according to claim 7, wherein: A plurality of lamp holders (404) are fixedly connected to the top of the detection box (4), and the lamp holder (404) is electrically connected with the detection plate (402).

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