Device for pressure sensor calibration and performance test

Abstract

The utility model relates to the technical field of pressure sensor production, in particular to a device for pressure sensor calibration and performance testing, which comprises a rack, a detection mechanism is arranged on the rack and is used for detecting a pressure sensor, and the detection mechanism comprises a lifting assembly, a pressure sensor, a pressure sensor, a pressure sensor and a pressure sensor, the execution assembly comprises two base plates arranged on the lifting assembly, first guide rails are fixed to the inner walls of the base plates, a plurality of first sliding blocks are installed on the first guide rails in a sliding mode, installation bases are fixed to the first sliding blocks, detection rods are fixed to the interiors of the installation bases, detection heads are fixed to the lower ends of the detection rods, and cams are rotationally installed on the installation bases; a guide plate is arranged on the base plate, and a plurality of guide grooves are formed in the guide plate; through synchronous equidistant adjustment of the multiple detection heads and cooperation with substrate spacing adjustment driven by the air cylinder, batch detection of sensor arrays of different specifications can be flexibly adapted, and the detection efficiency and universality are significantly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure sensor production technical field, concretely for a kind of device for pressure sensor calibration and performance test. BACKGROUND

[0002] Pressure sensor is the device or device that can feel pressure signal and can be converted into usable output electric signal according to certain law;Pressure sensor is usually composed of pressure sensitive element and signal processing unit;According to different test pressure types, pressure sensor can be divided into gauge pressure sensor, differential pressure sensor and absolute pressure sensor;

[0003] According to the disclosure No. CN216284092U, a kind of calibration device for pressure sensor is disclosed, this technology discloses "a kind of calibration device for pressure sensor, including base, speed reducer, servo motor, rotating shaft, first screw portion, second screw portion, nut block, tight sleeve, tight sleeve inside is set with the blind hole that rotating shaft end portion horizontal movement can freely pass, the length direction both ends of base are respectively equipped with standard pressure sensor and to be measured pressure sensor, two tight sleeves are respectively corresponding standard pressure sensor, to be measured pressure sensor "And other technical solutions, with "by the rotation of rotating shaft, so that two nut blocks respectively synchronous drive two tight sleeves to move, and respectively rest on to be measured pressure sensor and standard pressure sensor, so that the size and form of force suffered by standard pressure sensor and to be measured pressure sensor are same, only the direction of two is opposite, therefore by observing the pressure data fed back by standard pressure sensor and to be measured pressure sensor, the detection accuracy of to be measured pressure sensor can be judged"And other technical effects;

[0004] Due to the above-mentioned scheme is single-station design, only one sensor can be tested each time, and it is necessary to repeatedly perform sensor disassembly, pressure adjustment and data recording and other tedious steps, which not only is low in efficiency, but also is easy to introduce human error;And, since multiple sensor synchronous testing cannot be realized, each sensor is actually tested at different times and under different environmental conditions, which makes system error identification and batch problem analysis extremely difficult, seriously affecting the reliability and comparability of test data. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of device for pressure sensor calibration and performance test, by multiple detection head synchronous equidistance adjustment, cooperate with the adjustment of baseplate spacing driven by cylinder, can flexibly adapt to batch detection of different specifications sensor array, significantly improve detection efficiency and versatility.

[0006] To achieve the above object, the utility model discloses a device for pressure sensor calibration and performance test, including frame, be provided with detection mechanism on the frame and be used for to pressure sensor detection, and detection mechanism includes:

[0007] Lifting assembly, set up on the frame and be used for controlling lifting;

[0008] Execution component, including two base plates set up on lifting assembly, the first guide rail is fixed in the inner wall of base plate, a plurality of first sliding blocks are slidably installed on the first guide rail, the mounting seat is fixed on the first sliding block, the detection rod is fixed in the inside of mounting seat, the detection head is fixed on the lower end of detection rod, the cam is rotatably installed on the mounting seat, the guide plate is provided on the base plate, a plurality of guide grooves are formed in the inside of guide plate, and the cam is located in the inside of guide groove.

[0009] Preferably, the execution component further includes a cross plate provided on the lifting assembly, a first stand is fixed at one end of the bottom of the cross plate, a second stand is slidably installed at the other end, and the two base plates are respectively fixed at the lower ends of the first stand and the second stand, a second cylinder is installed on each of the first stand and the second stand, a connecting plate is fixed to the output end of the second cylinder, and the guide plate is fixed to the lower end of the connecting plate.

[0010] Preferably, the execution component further includes a balance bar slidably installed between the four corners of the two base plates, side plates are fixed at both ends of one of the base plates, a sliding carriage is slidably installed in the inside of the side plate, and the sliding carriage is fixed to the outer wall of the other base plate, a third cylinder is installed on the side plate, and the output end of the third cylinder is fixed to the sliding carriage.

[0011] Preferably, the lifting assembly further includes a gantry fixed to the inner tabletop of the frame, guide rods are slidably installed on both sides of the upper end of the gantry, an installation plate is fixed between the lower ends of the two guide rods, and the cross plate is fixed to the bottom of the installation plate.

[0012] Preferably, a tray is placed on the inner tabletop of the frame and used for loading and positioning a plurality of pressure sensors.

[0013] Preferably, the first sliding blocks adjacent to each other are staggered vertically. Beneficial effects

[0014] The utility model provides a device for pressure sensor calibration and performance test.Compared with the prior art, the device has the following beneficial effects:

[0015] 1. When the guide plate moves, the mounting seats are driven to move synchronously and equidistantly by the guide grooves and the cams, at the same time, the detection heads are driven to adjust the interval synchronously by the mounting seats through the detection rods, the parallel detection of multiple sensors is realized, and the interval can be adjusted according to the different specifications of the trays placed in different trays.

[0016] 2, the third cylinder output end drive slide base plate moves, thereby adjusting the interval between two base plates, thereby adjusting two rows of detection heads; according to the actual arrangement requirement of the measured pressure sensor, the interval of two rows of detection heads can be adjusted flexibly to adapt to the batch detection requirement of different specifications of sensor array, which significantly improves the versatility and detection efficiency of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is a structure schematic diagram of the detection mechanism in the utility model;

[0019] Figure 3 It is a structure schematic diagram of the execution assembly in the utility model;

[0020] Figure 4 It is a structure schematic diagram of the execution assembly in the utility model;

[0021] Figure 5 It is a structure schematic diagram of the base plate in the utility model.

[0022] In the drawing: 1, rack; 2, detection mechanism; 21, lifting assembly; 211, gantry; 212, guide rod; 213, mounting plate; 214, first cylinder; 22, execution assembly; 221, base plate; 222, first guide rail; 223, first sliding block; 224, mounting seat; 225, detection rod; 226, detection head; 227, cam; 228, guide plate; 229, guide groove; 2210, cross plate; 2211, first stand; 2212, second stand; 2213, second cylinder; 2214, connecting plate; 2215, balance bar; 2216, side plate; 2217, slide; 2218, third cylinder; 3, tray. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Please refer to Figure 1 Figure 5 The utility model provides a kind of technical scheme: a kind of device for pressure sensor calibration and performance test, including rack 1, rack 1 is provided with detection mechanism 2 and is used to detect pressure sensor, detection mechanism 2 includes:​

[0025] Lifting assembly 21, provided on the rack 1 and used for controlling lifting;

[0026] Execution assembly 22, comprising two base plates 221 provided on the lifting assembly 21, a first guide rail 222 is fixed on the inner wall of the base plate 221, a plurality of first sliding blocks 223 are slidingly installed on the first guide rail 222, a mounting seat 224 is fixed on the first sliding block 223, a detection rod 225 is fixed in the mounting seat 224, a detection head 226 is fixed on the lower end of the detection rod 225, a cam 227 is rotatably installed on the mounting seat 224, a guide plate 228 is provided on the base plate 221, a plurality of guide grooves 229 are formed in the guide plate 228, and the cam 227 is located in the guide groove 229.

[0027] In this embodiment, when the guide plate 228 moves, the plurality of mounting seats 224 are driven to move synchronously and equidistantly through the guide groove 229 cooperating with the cam 227, at the same time, the detection head 226 is driven to adjust the interval synchronously through the detection rod 225, so as to realize the parallel detection of multiple sensors, and the interval can be adjusted according to the different specifications of the different trays 3 placed in the different trays 3.

[0028] Specifically, the execution assembly 22 further comprises a cross plate 2210 provided on the lifting assembly 21, a first stand 2211 is fixed at one end of the bottom of the cross plate 2210, a second stand 2212 is slidingly installed at the other end, and the two base plates 221 are respectively fixed at the lower ends of the first stand 2211 and the second stand 2212, a second air cylinder 2213 is installed on each of the first stand 2211 and the second stand 2212, a connecting plate 2214 is fixed to the output end of the second air cylinder 2213, and the guide plate 228 is fixed to the lower end of the connecting plate 2214.

[0029] In this embodiment, the guide plate 228 is driven to move up and down by the output end of the second air cylinder 2213 driving the connecting plate 2214.

[0030] Specifically, the execution assembly 22 further comprises a balance rod 2215 slidingly installed between the four corners of the two base plates 221, and a side plate 2216 is fixed at both ends of one of the base plates 221, a sliding carriage 2217 is slidingly installed in the side plate 2216, and the sliding carriage 2217 is fixed to the outer wall of the other base plate 221, a third air cylinder 2218 is installed on the side plate 2216, and the output end of the third air cylinder 2218 is fixed with the sliding carriage 2217.

[0031] In this embodiment, the base plate 221 is driven to move by the output end of the third air cylinder 2218 driving the sliding carriage 2217, so as to adjust the interval between the two base plates 221, and adjust the two rows of detection heads 226.

[0032] Specifically, the lifting assembly 21 further comprises a portal frame 211 fixed on the inner tabletop of the rack 1, and guide rods 212 are slidingly installed on both sides of the upper end of the portal frame 211, and a mounting plate 213 is fixed between the lower ends of the two guide rods 212, and the horizontal plate 2210 is fixed on the bottom of the mounting plate 213.

[0033] In this embodiment, the output end of the first cylinder 214 drives the mounting plate 213, and the execution assembly 22 is driven to lift under the cooperation of the guide rods 212.

[0034] Specifically, the inner tabletop of the rack 1 is provided with the tray 3 for loading and positioning a plurality of pressure sensors.

[0035] In this embodiment, the tray 3 suitable for different specifications of pressure sensors can be selected.

[0036] Specifically, the first sliding blocks 223 adjacent to each other are staggered vertically.

[0037] In this embodiment, the first sliding blocks 223 adjacent to each other are prevented from moving transversely along the first guide rail 222 to avoid motion interference.

[0038] The working principle and use process of the utility model are as follows: first, the tray 3 suitable for the pressure sensor is selected, and the pressure sensors are arranged in the tray 3;

[0039] Then, the output end of the second cylinder 2213 drives the connecting plate 2214 to drive the guide plate 228 to move up and down, and the guide plate 228 moves through the guide groove 229 to cooperate with the cam 227 to drive the mounting seats 224 to move synchronously and equidistantly, and at the same time, the mounting seats 224 drive the detection heads 226 to adjust the interval synchronously through the detection rods 225, so as to realize the parallel detection of multiple sensors, and the interval can be adjusted according to the different specifications of the trays 3 placed in different trays 3.

[0040] And the output end of the third cylinder 2218 drives the sliding frame 2217 to drive the base plate 221 to move, so as to adjust the interval between the two base plates 221, thereby adjusting the two rows of detection heads 226.

[0041] Finally, the output end of the first cylinder 214 drives the mounting plate 213, and the execution assembly 22 is driven to lower under the cooperation of the guide rods 212, so that the detection heads 226 detect the pressure sensors in the tray 3.

[0042] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0043] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for pressure sensor calibration and performance testing comprising a frame (1), characterized in that: The rack (1) is provided with a detection mechanism (2) and is used for pressure sensor detection. The lifting assembly (21) is arranged on the rack (1) and is used for control lifting; The execution assembly (22) comprises two base plates (221) arranged on the lifting assembly (21), a first guide rail (222) is fixedly arranged on the inner wall of the base plate (221), a plurality of first sliding blocks (223) are slidingly arranged on the first guide rail (222), a mounting seat (224) is fixedly arranged on the first sliding block (223), a detection rod (225) is fixedly arranged in the mounting seat (224), a detection head (226) is fixedly arranged at the lower end of the detection rod (225), a cam (227) is rotatably arranged on the mounting seat (224), a guide plate (228) is arranged on the base plate (221), a plurality of guide grooves (229) are arranged in the guide plate (228), and the cam (227) is located in the guide groove (229).

2. A device for pressure sensor calibration and performance testing according to claim 1, characterized in that: The execution assembly (22) further comprises a cross plate (2210) arranged on the lifting assembly (21), a first stand (2211) is fixedly arranged at one end of the bottom of the cross plate (2210), a second stand (2212) is slidingly arranged at the other end, and the two base plates (221) are fixedly arranged at the lower ends of the first stand (2211) and the second stand (2212), respectively, a second cylinder (2213) is arranged on each of the first stand (2211) and the second stand (2212), a connecting plate (2214) is fixedly arranged at the output end of the second cylinder (2213), and the guide plate (228) is fixedly arranged at the lower end of the connecting plate (2214).

3. A device for pressure sensor calibration and performance testing according to claim 1, characterized in that: The execution assembly (22) further comprises a balance rod (2215) slidingly arranged between the four corners of the two base plates (221), and a side plate (2216) is fixedly arranged at each end of one of the base plates (221), a sliding frame (2217) is slidingly arranged in the side plate (2216), and the sliding frame (2217) is fixedly arranged on the outer wall of the other base plate (221), a third cylinder (2218) is arranged on the side plate (2216), and the output end of the third cylinder (2218) is fixedly connected with the sliding frame (2217).

4. A device for pressure sensor calibration and performance testing according to claim 2, characterized in that: The lifting assembly (21) further comprises a gantry (211) fixedly arranged on the inner table of the rack (1), guide rods (212) are slidingly arranged on both sides of the upper end of the gantry (211), and a mounting plate (213) is fixedly arranged between the lower ends of the two guide rods (212), and the cross plate (2210) is fixedly arranged at the bottom of the mounting plate (213).

5. A device for pressure sensor calibration and performance testing according to claim 1, characterized in that: The inner table of the rack (1) is provided with a tray (3) and is used for loading and positioning a plurality of pressure sensors.

6. A device for pressure sensor calibration and performance testing according to claim 1, characterized in that: The first sliding blocks (223) adjacent to each other are staggered in the up-down direction.

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