CN209894399U - Tool for sensor calibration - Google Patents
Tool for sensor calibration Download PDFInfo
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- CN209894399U CN209894399U CN201920814929.6U CN201920814929U CN209894399U CN 209894399 U CN209894399 U CN 209894399U CN 201920814929 U CN201920814929 U CN 201920814929U CN 209894399 U CN209894399 U CN 209894399U
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Abstract
The utility model discloses a tool for sensor calibration, which comprises a cover plate, a tool body, a valve core, a handle and an oil inlet flange; the cover plate and the oil inlet flange are fixed on the tool body, the valve core is inserted into the valve core hole of the tool body, the cover plate is connected with the valve core through threads, the valve core is sealed with the tool body through a valve line, the handle is inserted into the upper end of the valve core, and the valve core is controlled to move up and down in the valve core hole through rotating the handle. The utility model discloses a mark frock mainly used pressure sensor and mark work can satisfy 6 25MPa high pressure sensor and 6 2MPa low pressure sensors and mark work, improves the efficiency that the sensor was markd greatly.
Description
Technical Field
The utility model belongs to the technical field of the sensor is markd, concretely relates to a frock for sensor is markd.
Background
Two types of sensors are installed on an I-stage servo mechanism of a certain electro-hydraulic model: the CY1-17E-2MPa sensor and the CY1-17E/F-25MPa sensor are respectively used for monitoring the oil pressure values of an oil pump inlet and a valve outlet of the servo mechanism.
In the assembly process of the servo mechanism, if the sensor is found to exceed the qualified period, the sensor needs to be calibrated, and the servo mechanism can be used after the calibration is qualified. The existing calibration method has the following defects:
(1) the CY1-17E-2MPa sensor is in threaded connection with a connecting seat of the whole machine, due to the fact that the stud and the connecting seat of the CY1-17E-2MPa sensor are made of stainless steel materials and have the same hardness, the CY1-17E-2MPa sensor is prone to thread seizure during disassembly, the whole CY1-17E-2MPa sensor is scrapped and cannot be used continuously, unnecessary quality loss of model tasks is caused, and meanwhile the delivery progress of the whole machine is seriously affected.
(2) The existing sensor calibration process method is used for individually calibrating each sensor, a next sensor can be installed after the calibration of each sensor is finished, the calibration work of the next sensor is carried out, the efficiency is low, the time consumption is long, and the operation content is complicated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a frock for sensor is markd avoids resulting in the screw thread to be stung diely because of dismantling 2MPa sensor, increases the sensor simultaneously and once marks quantity, improves the sensor and marks efficiency.
Realize the utility model discloses the technical scheme of purpose does: a tool for calibrating a sensor comprises a cover plate, a tool body, a valve core, a handle and an oil inlet flange;
the cover plate and the oil inlet flange are fixed on the tool body, the valve core is inserted into the valve core hole of the tool body, the cover plate is connected with the valve core through threads, the valve core is sealed with the tool body through a valve line, the handle is inserted into the upper end of the valve core, and the valve core is controlled to move up and down in the valve core hole through rotating the handle.
Compared with the prior art, the utility model discloses a show the advantage and do: (1) when the sensor is calibrated, the sensor does not need to be detached from the connecting seat of the whole machine, so that the problem of sensor scrapping caused by thread seizing is effectively solved; (2) the tool can be simultaneously provided with a plurality of sensors and is simultaneously connected to the output end of the hand-operated press, the output voltage values of the sensors are simultaneously detected by using a digital voltmeter, and the screening efficiency of the sensors is greatly improved; (3) the tool is provided with the high-low oil way switching valve core, and the switching of the two oil ways is controlled by screwing the valve core wrench, so that the tool can simultaneously meet the screening working requirements of the high-pressure CY1-17E/F-25MPa and low-pressure CY1-17E-2MPa sensors, and other tools do not need to be additionally designed for screening.
Drawings
FIG. 1 is a schematic diagram of a conventional sensor calibration method.
Fig. 2 is the utility model discloses demarcate the frock and constitute the schematic diagram.
FIG. 3 is a schematic diagram of an improved sensor calibration test method.
Fig. 4 is a flowchart of the sensor calibration method of the present invention.
Detailed Description
Aiming at the defects of the original process method, the existing process method is analyzed and optimized, a new sensor calibration tool is designed, thread seizure caused by disassembling a 2MPa sensor is avoided, the one-time calibration quantity of the sensor is increased, and the calibration efficiency of the sensor is improved.
As shown in fig. 2, the tool for calibrating the sensor comprises a cover plate 1, a tool body 3, a valve core 4, a handle 5, a connecting screw 6 and an oil inlet flange 7;
the cover plate 1 and the oil inlet flange 7 are fixed on the tool body 3, the valve core 4 is inserted into a valve core hole of the tool body, the cover plate 1 is connected with the valve core 4 through threads, the valve core 4 is sealed with the tool body 3 through a valve line, the handle 5 is inserted into the upper end of the valve core 4 and is perpendicular to the valve core 4, and the valve core 3 is controlled to move up and down in the valve core hole through rotating the handle 5.
Two oil ways are arranged in the tool body 3. The tool body is provided with the high-low oil way switching valve core, and the two oil ways are switched by screwing the valve core wrench, so that the tool can simultaneously meet the screening working requirements of high-pressure CY1-17E/F-25MPa and low-pressure CY1-17E-2MPa sensors, and other tools do not need to be additionally designed for screening.
The valve core 4 and the valve core hole of the tool body and the oil inlet flange 7 and the tool body 3 are sealed through the sealing ring 2.
The cover plate 1 and the oil inlet flange 7 are fixed on the tool body 3 through screws 6.
A sensor calibration step based on the tool is as follows: when the sensor needs to be calibrated, the sensor does not need to be detached from a connecting seat, the connecting seat for installing the sensor is directly detached from the whole machine, then the connecting seat is installed on the surface of a calibration tool, as shown in fig. 3, 6 connecting seats can be installed in the calibration tool, a hand-operated press is used for pressurizing the calibration tool after installation, a voltage-stabilized power supply and a digital voltmeter are used for monitoring the output voltage value of the calibrated sensor, recording is carried out, when the 25MPa sensor is calibrated, a tool valve is screwed, and the situation that high-pressure oil pressure enters the end surface of the 2MPa sensor and damages the low-pressure sensor is avoided; calibrating a 2MPa sensor to loosen the tool valve; when other installation surfaces of the tool do not have calibration work, the cover plate 1 is used for covering the tool, and oil pressure leakage is prevented. The specific workflow is shown in fig. 4.
The present invention will be described in detail with reference to the following examples.
Examples
The sensor calibration tool is shown in fig. 2, and the greatest improvement of the tool compared with the prior calibration process method is that when the sensor needs to be calibrated, the sensor does not need to be detached from the nut on the connecting seat, so that the phenomenon that the sensor bolt and the connecting seat nut are seized is avoided.
The calibration tool is composed of 7 parts, a cover plate 1 and an oil inlet flange 7 are fixed onto a tool body 3 through a screw 6, a valve core 4 is inserted into a valve core hole of the tool body, the cover plate 1 is connected with the valve core 4 through threads, the valve core 4 is sealed with the tool body 3 through a valve line, a handle 5 is inserted into the upper end of the valve core 4, the valve core 4 is controlled to move up and down in the valve core hole through rotating the handle 5, and the effect of controlling two oil ways is achieved.
The utility model discloses effectively avoided sensor bolt screw thread to sting the problem, 12 sensors can be installed simultaneously to the frock, are connected to hand press output simultaneously, use the digital voltmeter to detect the output voltage value of 12 sensors simultaneously, and the efficiency of sensor screening obtains very big improvement.
Claims (6)
1. A tool for calibrating a sensor is characterized by comprising a cover plate (1), a tool body (3), a valve core (4), a handle (5) and an oil inlet flange (7);
the cover plate (1) and the oil inlet flange (7) are fixed on the tool body (3), the valve core (4) is inserted into a valve core hole of the tool body, the cover plate (1) is connected with the valve core (4) through threads, the valve core (4) is sealed with the tool body (3) through a valve line, the handle (5) is inserted into the upper end of the valve core (4), and the valve core (4) is controlled to move up and down in the valve core hole through the rotating handle (5).
2. The tool for sensor calibration according to claim 1, wherein two oil passages are arranged in the tool body (3).
3. The tool for sensor calibration according to claim 2, wherein a high-low oil path switching valve core is arranged on the tool body (3) and used for switching two oil paths.
4. The tool for sensor calibration according to claim 1, wherein the sealing rings (2) are used for sealing between the valve core (4) and the valve core hole of the tool body and between the oil inlet flange (7) and the tool body (3).
5. The tool for sensor calibration according to claim 1, wherein the cover plate (1) and the oil inlet flange (7) are fixed on the tool body (3) through connecting screws (6).
6. The tool for sensor calibration according to claim 1, wherein the handle (5) is vertically connected with the valve core (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920814929.6U CN209894399U (en) | 2019-05-31 | 2019-05-31 | Tool for sensor calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920814929.6U CN209894399U (en) | 2019-05-31 | 2019-05-31 | Tool for sensor calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209894399U true CN209894399U (en) | 2020-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920814929.6U Active CN209894399U (en) | 2019-05-31 | 2019-05-31 | Tool for sensor calibration |
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| Country | Link |
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| CN (1) | CN209894399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186617A (en) * | 2019-05-31 | 2019-08-30 | 南京晨光集团有限责任公司 | A kind of tooling for transducer calibration |
-
2019
- 2019-05-31 CN CN201920814929.6U patent/CN209894399U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186617A (en) * | 2019-05-31 | 2019-08-30 | 南京晨光集团有限责任公司 | A kind of tooling for transducer calibration |
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