CN218411544U

CN218411544U - Automatic calibration platform for pressure sensor

Info

Publication number: CN218411544U
Application number: CN202222641600.9U
Authority: CN
Inventors: 张卓; 雷洪钧; 王雪; 姜岚; 沈顺元
Original assignee: Wuhan Zhuoxian Jiaxing Technology Co ltd
Current assignee: Wuhan Zhuoxian Jiaxing Technology Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-01-31
Anticipated expiration: 2032-09-30

Abstract

The utility model relates to a technical field of pressure sensor calibration, in particular to an automatic calibration platform for a pressure sensor, which is convenient for workers to calibrate the precision of the pressure sensor, improves the comprehensive pressing detection effect of the calibration platform on the pressure sensor, reduces the detection error and improves the calibration precision of the pressure sensor; the on-line screen storage device comprises a base, fixing device, elevating gear, the barrel, the spacing ring, a piston, the connecting rod, the connecting plate, pressure measurement subassembly and barometer, base top middle part is provided with fixing device, elevating gear installs in base top left part, the barrel top is connected with the elevating gear output, the barrel bottom is provided with the opening, the spacing ring is installed on barrel opening inside wall, the piston slides from top to bottom and sets up inside the barrel, the piston bottom is connected with the connecting rod top, the connecting plate top is connected with the connecting rod bottom, pressure measurement subassembly is installed on connecting plate bottom lateral wall, and pressure measurement subassembly and connecting plate pass through bolt fixed connection.

Description

Automatic calibration platform for pressure sensor

Technical Field

The utility model relates to a technical field of pressure sensor calibration especially relates to an automatic calibration platform for pressure sensor.

Background

The pressure sensor is a device or a device which can sense pressure signals and can convert the pressure signals into usable output electric signals according to a certain rule, and the pressure sensor is widely applied to various industrial automatic control environments.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a be convenient for the staff calibrates pressure sensor's precision, improves calibration platform and synthesizes the effect of pressing down the detection to pressure sensor, reduces the detection error, improves pressure sensor's calibration precision's an automatic calibration platform for pressure sensor.

The utility model discloses an automatic calibration platform for pressure sensor, the on-line screen storage device comprises a base, a fixing device, a lifting device, a barrel, the spacing ring, a piston, the connecting rod, the connecting plate, pressure detection subassembly and barometer, base top middle part is provided with fixing device, lifting device installs in base top left part, the barrel top is connected with the lifting device output, the barrel bottom is provided with the opening, the spacing ring is installed on barrel opening inside wall, the piston slides from top to bottom and sets up inside the barrel, the piston bottom is connected with the connecting rod top, the connecting plate top is connected with the connecting rod bottom, pressure detection subassembly installs on connecting plate bottom lateral wall, and pressure detection subassembly and connecting plate pass through bolt fixed connection, the barometer is installed on the barrel lateral wall, the barometer input communicates with in the barrel; the pressure sensor to be calibrated is fixed at the top end of a base through a fixing device, then a barrel is driven to move downwards through a lifting device, the barrel drives a connecting rod and a connecting plate to move downwards through a piston after moving downwards, the connecting plate drives a pressure detection assembly to move downwards, so that the output end of the pressure detection assembly is in contact with the pressure sensor, the barrel is continuously driven to move downwards through the lifting device, the pressure detection assembly is used for pressing and detecting the pressure sensor, the pressure detection assembly pushes the connecting plate to move upwards after being pressed, the connecting plate pushes the piston to move upwards through the connecting rod, the piston compresses the gas at the upper part in the barrel, the gas pressure in the barrel is detected through a gas pressure gauge, after the barrel stops moving, the detection numerical values of the pressure detection assembly and the gas pressure gauge are compared with the numerical value of the pressure sensor displaying the pressed pressure, so that workers can calibrate the precision of the pressure sensor, the comprehensive pressing and detecting effect of the pressure sensor by a calibration platform is improved, the detection error is reduced, and the calibration precision of the pressure sensor is improved.

Preferably, the fixing device comprises a bearing platform, two groups of supporting seats, two groups of studs, two groups of hand wheels and two groups of clamping plates, wherein the bottom end of the bearing platform is connected with the middle part of the top end of the base; inside placing the plummer with the pressure sensor lower part, later snatch two sets of hand wheels rotatory to two sets of double-screw bolts, move left or right on two sets of supporting seats after two sets of double-screw bolts are rotatory, through being close to the removal each other after rotatory with two sets of double-screw bolts, it will be located the pressure sensor centre gripping on the plummer to make two sets of double-screw bolts drive two sets of splint fixed, thereby improve the position stability that pressure sensor calibration examined time measuring, improve the calibration precision of calibration platform to pressure sensor, through setting up two sets of splint into the V-arrangement, improve the convenience that two sets of splint are fixed to the pressure sensor centre gripping of different diameters.

Preferably, the lifting device comprises a case, a slider, a connecting arm, a screw rod and a motor, the bottom end of the case is connected with the left part of the top end of the base, a chute is arranged in the case, the slider is arranged on the chute in a vertically sliding manner, the right end of the slider is connected with the left end of the connecting arm, the right part of the bottom end of the connecting arm is connected with the top end of the cylinder, the upper end and the lower end of the screw rod are respectively and rotatably arranged on the inner side wall of the chute, the slider is sleeved on the outer side wall of the screw rod in a matching manner, the motor is arranged at the top end of the case, and the output end of the motor is concentrically connected with the top end of the screw rod; the motor is started to drive the lead screw to rotate, the lead screw rotates and then drives the sliding block to move upwards or downwards, the sliding block drives the connecting arm to move downwards, the connecting arm drives the pressure detection assembly to move downwards through the barrel, the automation of pressing detection of the calibration platform on the pressure sensor is improved, and the use convenience of the platform is improved.

Preferably, the guide device further comprises a plurality of groups of guide columns and a plurality of groups of kits, wherein the bottom ends of the plurality of groups of guide columns are circumferentially arranged at the top end of the connecting plate, the plurality of groups of kits are circumferentially arranged at the lower part of the outer side wall of the cylinder body, and the plurality of groups of guide columns are respectively arranged on the plurality of groups of kits in a sliding manner; the connecting plate drives the guide posts of the multiple groups to move up and down when moving up and down, so that the guide posts of the multiple groups slide on the external members of the multiple groups respectively, the sliding guide effect of the connecting plate is improved, and the use stability of the pressure detection assembly is improved.

Preferably, the pressure sensor also comprises a display, the display is arranged at the top end of the base and is respectively and electrically connected with the pressure detection assembly and the detected pressure sensor through leads; after pressure sensor that needs detected is fixed, make it be connected with the display electricity through the wire, press the back when pressure detection subassembly to pressure sensor, the numerical value of pressure detection subassembly and pressure sensor's numerical value respectively through the display demonstration to improve the convenience that the platform detected the numerical value contrast to pressure sensor.

Preferably, rubber pads are respectively arranged on the inner side walls of the two groups of clamping plates; the rubber pad is arranged on the inner side walls of the two groups of clamping plates, so that the abrasion between the two groups of clamping plates and the outer side wall of the pressure sensor is reduced, and the protection effect of the pressure sensor is improved.

Preferably, the top end of the bearing table is provided with a plurality of stages of grooves with different diameters; the bottom of the pressure sensor with different diameters is fixed through the bearing table, and the use limitation of the platform is reduced.

Compared with the prior art, the beneficial effects of the utility model are that: the pressure sensor to be calibrated is fixed at the top end of a base through a fixing device, then a barrel is driven to move downwards through a lifting device, the barrel drives a connecting rod and a connecting plate to move downwards through a piston after moving downwards, the connecting plate drives a pressure detection assembly to move downwards, so that the output end of the pressure detection assembly is in contact with the pressure sensor, the barrel is continuously driven to move downwards through the lifting device, the pressure detection assembly is used for pressing and detecting the pressure sensor, the pressure detection assembly pushes the connecting plate to move upwards after being pressed, the connecting plate pushes the piston to move upwards through the connecting rod, the piston compresses the gas at the upper part in the barrel, the gas pressure in the barrel is detected through a gas pressure gauge, after the barrel stops moving, the detection numerical values of the pressure detection assembly and the gas pressure gauge are compared with the numerical value of the pressure sensor displaying the pressed pressure, so that workers can calibrate the precision of the pressure sensor, the comprehensive pressing and detecting effect of the pressure sensor by a calibration platform is improved, the detection error is reduced, and the calibration precision of the pressure sensor is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a partial schematic view showing the connection of a piston to a connecting rod or the like;

FIG. 3 is a partial schematic view of a stud and cleat connection;

FIG. 4 is a schematic diagram of an axial structure of the carrier;

in the drawings, the reference numbers: 1. a base; 2. a cylinder body; 3. a limiting ring; 4. a piston; 5. a connecting rod; 6. a connecting plate; 7. a pressure detection assembly; 8. a barometer; 9. a bearing table; 10. a supporting seat; 11. a stud; 12. a hand wheel; 13. a splint; 14. a chassis; 15. a slider; 16. a connecting arm; 17. a lead screw; 18. a motor; 19. a guide post; 20. a kit; 21. and a display.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

The bottom end of a cylinder body 2 is provided with an opening, a limiting ring 3 is arranged on the inner side wall of the opening of the cylinder body 2, a piston 4 is arranged in the cylinder body 2 in a vertical sliding manner, the bottom end of the piston 4 is connected with the top end of a connecting rod 5, the top end of the connecting plate 6 is connected with the bottom end of the connecting rod 5, a pressure detection assembly 7 is arranged on the outer side wall of the bottom end of the connecting plate 6, the pressure detection assembly 7 is fixedly connected with the connecting plate 6 through bolts, an air pressure gauge 8 is arranged on the outer side wall of the cylinder body 2, the input end of the air pressure gauge 8 is communicated with the inside of the cylinder body 2, the bottom end of a bearing platform 9 is connected with the middle part of the top end of a base 1, the bottom ends of two groups of supporting seats 10 are both connected with the top end of the base 1, two groups of supporting seats 10 are respectively arranged on the left side and the right side of the bearing platform 9, threaded holes are respectively arranged in the middle parts of the two groups of supporting seats 10, two groups of studs 11 are respectively matched and screwed on the threaded holes of the two groups of studs 11, and two groups of the hand wheels 12 are respectively and fixedly arranged on the rear ends of the two groups of studs, two groups of clamping plates 13 are respectively rotatably connected with the front ends of two groups of studs 11, and the two groups of clamping plates 13 are respectively arranged in a V shape, the bottom end of a case 14 is connected with the left part of the top end of a base 1, a sliding groove is arranged in the case 14, a sliding block 15 is arranged on the sliding groove in an up-and-down sliding manner, the right end of the sliding block 15 is connected with the left end of a connecting arm 16, the right part of the bottom end of the connecting arm 16 is connected with the top end of a cylinder 2, the upper end and the lower end of a screw 17 are respectively rotatably arranged on the inner side wall of the sliding groove, the sliding block 15 is sleeved on the outer side wall of the screw 17 in a matching manner, a motor 18 is arranged at the top end of the case 14, the output end of the motor 18 is concentrically connected with the top end of the screw 17, the bottom ends of a plurality of groups of guide posts 19 are all circumferentially arranged at the top end of the connecting plate 6, a plurality of groups of external sleeves 20 are all circumferentially arranged at the lower part of the outer side wall of the cylinder 2, and a plurality of guide posts 19 are respectively arranged on the top end of the base 1 in a sliding manner, the display 21 is respectively and electrically connected with the pressure detection assembly 7 and the detected pressure sensor through leads, the inner side walls of the two groups of clamping plates 13 are respectively provided with a rubber pad, and the top end of the bearing table 9 is provided with a plurality of stages of grooves with different diameters; firstly, the lower part of a pressure sensor is placed in a bearing platform 9, then two groups of hand wheels 12 are grabbed to rotate two groups of studs 11, the two groups of studs 11 rotate and then move leftwards or rightwards on two groups of supporting seats 10, the two groups of studs 11 rotate and then move close to each other, the two groups of studs 11 drive two groups of clamping plates 13 to clamp and fix the pressure sensor on the bearing platform 9, so that the position stability of the pressure sensor during calibration and detection is improved, the calibration precision of a calibration platform on the pressure sensor is improved, the convenience of clamping and fixing the pressure sensors with different diameters by the two groups of clamping plates 13 is improved by setting the two groups of clamping plates 13 into a V shape, after the pressure sensor to be detected is fixed, the pressure sensor is electrically connected with a display 21 through a lead, then the connecting arm 16 drives a cylinder body 2 to move downwards, after the cylinder body 2 moves downwards, the piston 4 drives a connecting rod 5 and a connecting plate 6 to move downwards, the connecting plate 6 drives the pressure detection component 7 to move downwards, so that the output end of the pressure detection component 7 is contacted with the pressure sensor, the barrel 2 is continuously driven to move downwards through the connecting arm 16, the pressure detection component 7 is used for performing press detection on the pressure sensor, the pressure detection component 7 pushes the connecting plate 6 to move upwards after being pressurized, the connecting plate 6 pushes the piston 4 to move upwards through the connecting rod 5, the piston 4 compresses the gas at the upper part in the barrel 2, the gas pressure in the barrel 2 is detected through the barometer 8, after the barrel 2 stops moving, the detection values of the pressure detection component 7 and the barometer 8 are compared with the value of the pressure displayed by the pressure sensor, so that a worker can calibrate the precision of the pressure sensor conveniently, and the comprehensive press detection effect of the calibration platform on the pressure sensor is improved, and detection errors are reduced, and the calibration precision of the pressure sensor is improved.

As shown in fig. 1 to 4, in the operation of the automatic calibration platform for a pressure sensor of the present invention, the lower portion of the pressure sensor is placed inside the bearing platform 9, then two sets of hand wheels 12 are grabbed to rotate two sets of studs 11, the two sets of studs 11 are rotated and then moved left or right on two sets of supporting bases 10, the two sets of studs 11 are rotated and then moved close to each other, so that the two sets of studs 11 drive two sets of clamping plates 13 to clamp and fix the pressure sensor on the bearing platform 9, then the motor 18 is turned on to drive the screw 17 to rotate, the screw 17 is rotated to drive the slider 15 to move up or down, the slider 15 drives the connecting arm 16 to move down, the connecting arm 16 drives the cylinder 2 to move down, the cylinder 2 moves down and then drives the connecting rod 5 and the connecting plate 6 to move down through the piston 4, connecting plate 6 drives pressure measurement subassembly 7 downstream, thereby make pressure measurement subassembly 7 output and pressure sensor contact, continue to drive barrel 2 downstream through linking arm 16, make pressure measurement subassembly 7 press down pressure sensor and detect, pressure measurement subassembly 7 promotes connecting plate 6 upstream after receiving pressure, connecting plate 6 promotes piston 4 upstream through connecting rod 5, piston 4 compresses the gas on upper portion in the barrel 2, detect the gas pressure in the barrel 2 through barometer 8, after barrel 2 stops moving, show the numerical value that receives pressure through the detection numerical value with barometer 7 and barometer 8 and pressure sensor self and show and contrast, thereby make the staff calibrate pressure sensor's precision.

The utility model discloses the main function who realizes does: drive barrel 2 through elevating gear and move down, barrel 2 drives connecting rod 5 and connecting plate 6 through piston 4 after the downstream, connecting plate 6 drives pressure measurement subassembly 7 and moves down, thereby make pressure measurement subassembly 7 output and pressure sensor contact, continue to drive barrel 2 through elevating gear and move down, make pressure measurement subassembly 7 press down the detection to pressure sensor, pressure measurement subassembly 7 promotes connecting plate 6 and moves up after receiving pressure, connecting plate 6 promotes piston 4 through connecting rod 5 and moves up, piston 4 compresses the gas of upper portion in barrel 2, detect the gas pressure in barrel 2 through barometer 8, after barrel 2 stops moving, through comparing the numerical value that detects pressure measurement subassembly 7 and barometer 8 with the numerical value that pressure sensor self shows and receive pressure, thereby the staff of being convenient for calibrates pressure sensor's precision.

The utility model discloses an automatic calibration platform for pressure sensor, the installation mode, connection mode or setting mode are all common mechanical modes, and the implementation can be carried out as long as the beneficial effects can be achieved; the utility model discloses a pressure measurement subassembly 7, barometer 8, motor 18 and display 21 for pressure sensor's automatic calibration platform are for purchasing on the market, and this industry technical staff only need according to its subsidiary service instruction install and operate can, and need not the technical staff in the field and pay out creative work.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an automatic calibration platform for pressure sensor, a serial communication port, including base (1), fixing device, elevating gear, barrel (2), spacing ring (3), piston (4), connecting rod (5), connecting plate (6), pressure measurement subassembly (7) and barometer (8), base (1) top middle part is provided with fixing device, elevating gear installs in base (1) top left part, barrel (2) top is connected with the elevating gear output, barrel (2) bottom is provided with the opening, spacing ring (3) are installed on barrel (2) opening inside wall, piston (4) slide from top to bottom and set up inside barrel (2), piston (4) bottom is connected with connecting rod (5) top, connecting plate (6) top is connected with connecting rod (5) bottom, pressure measurement subassembly (7) are installed on connecting plate (6) bottom lateral wall, and pressure measurement subassembly (7) pass through bolt fixed connection with connecting plate (6), barometer (8) are installed on barrel (2) lateral wall, barometer (8) input communicates with each other in with barrel (2).

2. The automatic calibration platform for the pressure sensor according to claim 1, wherein the fixing device comprises a bearing platform (9), two sets of supporting seats (10), two sets of studs (11), two sets of hand wheels (12) and two sets of clamping plates (13), the bottom end of the bearing platform (9) is connected with the middle portion of the top end of the base (1), the bottom ends of the two sets of supporting seats (10) are both connected with the top end of the base (1), the two sets of supporting seats (10) are respectively arranged at the left side and the right side of the bearing platform (9), the middle portions of the two sets of supporting seats (10) are respectively provided with a threaded hole, the two sets of studs (11) are respectively matched and screwed on the threaded holes of the two sets of supporting seats (10), the two sets of hand wheels (12) are respectively and fixedly arranged at the rear ends of the two sets of studs (11), the two sets of clamping plates (13) are respectively rotatably connected with the front ends of the two sets of studs (11), and the two sets of clamping plates (13) are respectively arranged in a V shape.

3. The automatic calibration platform for the pressure sensor as claimed in claim 1, wherein the lifting device comprises a case (14), a slider (15), a connecting arm (16), a lead screw (17) and a motor (18), the bottom end of the case (14) is connected with the left portion of the top end of the base (1), a sliding groove is formed in the case (14), the slider (15) is arranged on the sliding groove in a vertical sliding mode, the right end of the slider (15) is connected with the left end of the connecting arm (16), the right portion of the bottom end of the connecting arm (16) is connected with the top end of the cylinder (2), the upper end and the lower end of the lead screw (17) are respectively and rotatably mounted on the inner side wall of the sliding groove, the slider (15) is sleeved on the outer side wall of the lead screw (17) in a matching mode, the motor (18) is mounted at the top end of the case (14), and the output end of the motor (18) is concentrically connected with the top end of the lead screw (17).

4. The automatic calibration platform for the pressure sensor according to claim 1, further comprising a plurality of sets of guide posts (19) and a plurality of sets of sleeves (20), wherein the bottom ends of the plurality of sets of guide posts (19) are all circumferentially installed at the top end of the connecting plate (6), the plurality of sets of sleeves (20) are all circumferentially installed at the lower portion of the outer side wall of the cylinder (2), and the plurality of sets of guide posts (19) are respectively slidably disposed on the plurality of sets of sleeves (20).

5. An automatic calibration platform for pressure sensors according to claim 1, characterized in that it further comprises a display (21), the display (21) is mounted on the top of the base (1), and the display (21) is electrically connected with the pressure detection assembly (7) and the pressure sensor to be detected respectively through wires.

6. The automatic calibration platform for pressure sensors according to claim 2, characterized in that the inner side walls of said two sets of clamping plates (13) are respectively provided with rubber pads.

7. The automatic calibration platform for pressure sensors according to claim 2, characterized in that the top of the bearing table (9) is provided with a plurality of stages of grooves with different diameters.