Gas distribution system based on full-automatic verification of pressure gauge

Abstract

The utility model discloses a gas distribution system based on full-automatic verification of a pressure gauge. The gas distribution system comprises a verification gas distribution assembly and an auxiliary gas distribution assembly, the verification gas distribution assembly comprises a pressure control mechanism and a verification output port, the pressure control mechanism is communicated with the verification output port through a pipeline, the pressure control mechanism is used for controlling the pressure to a target verification pressure, and the verification output port is used for being connected with a to-be-verified pressure gauge and outputting the target verification pressure to the to-be-verified pressure gauge; the auxiliary gas distribution assembly comprises an auxiliary gas source, a mechanical arm grabbing mechanism and an output port locking mechanism, the mechanical arm grabbing mechanism and the output port locking mechanism are communicated with the auxiliary gas source through pipelines, and the auxiliary gas source is used for providing a driving source for the mechanical arm grabbing mechanism and the output port locking mechanism to conduct grabbing or locking actions. According to the utility model, the full-automatic verification operation process of the pressure gauge can be realized, and the stability and the operation efficiency of the automatic verification of the pressure gauge are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic calibration of pressure gauges, in particular to a gas distribution system based on full-automatic calibration of pressure gauges. Background Art

[0002] The traditional calibration of pressure gauges is mostly carried out manually. That is, a pressure calibrator is prepared, and then the standard pressure gauge and the gauge under test are simultaneously installed on the two pressure output ports of the pressure calibrator. After that, the pressure is manually or electrically controlled to the target pressure, and the indications of the standard pressure gauge and the gauge under test are respectively observed and recorded in the calibration form at the same time. The calibration work at multiple calibration points specified in the calibration procedure is completed in the above manner. However, the traditional calibration method can only calibrate one pressure gauge at a time, and during the calibration process, manual work such as loading and unloading the gauge, controlling the pressure, reading the value, and recording the data is required. The degree of automation is low, the labor intensity is large, and the efficiency is not high. Therefore, based on the above problems, some enterprises have proposed a full-automatic calibration scheme for pressure gauges. However, the "key driving force" for realizing the full-automatic calibration scheme is to design a well-designed, reasonable, and stable-output gas distribution system. Usually, in order to realize the full-automatic calibration scheme, multiple nodes and multiple modules need to cooperate with each other. For example, the gripper of the manipulator needs pneumatic drive to grab the pressure gauge, and the output port locking mechanism needs pneumatic drive to lock the pressure gauge to achieve a sealed connection between the pressure gauge and the calibration gas circuit, and so on. At present, the full-automatic calibration schemes implemented by some enterprises have disordered and chaotic gas distribution. However, due to the strong coordination and cooperation required among various nodes in the full-automatic calibration process, if the gas distribution is disordered, it is easy to cause poor coordination and cooperation among nodes, and then the stability of the entire full-automatic calibration process is not high. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a gas distribution system based on full-automatic calibration of pressure gauges to solve the problems of poor coordination and cooperation and low stability in the full-automatic calibration process of existing pressure gauges.

[0004] To solve the above problems, the utility model adopts the following technical solutions:

[0005] A gas distribution system based on full-automatic calibration of pressure gauges includes: a calibration gas distribution component and an auxiliary gas distribution component;

[0006] The calibration gas distribution component includes a pressure control mechanism and a calibration output port. The pressure control mechanism is connected to the calibration output port through a pipeline. The pressure control mechanism is used to control the pressure to the target calibration pressure, and the calibration output port is used to connect the pressure gauge under test and output the target calibration pressure to the pressure gauge under test;

[0007] The auxiliary gas distribution assembly includes an auxiliary gas source, a manipulator grasping mechanism, and an output port locking mechanism. The manipulator grasping mechanism and the output port locking mechanism are respectively connected to the auxiliary gas source through pipelines. The auxiliary gas source is used to provide a driving source for the manipulator grasping mechanism and the output port locking mechanism to perform grasping or locking actions. The output port locking mechanism is used to tightly and hermetically connect the pressure gauge to be inspected with the calibration output port.

[0008] Furthermore, the calibration gas distribution assembly further includes a supercharger, which is connected to the pressure control mechanism through a pipeline. The supercharger is used to pre-boost to a stable high-pressure source for the pressure control mechanism to adjust the high pressure output from the high-pressure source to reach the target calibration pressure after pressure regulation control.

[0009] Furthermore, the calibration gas distribution assembly further includes a calibration gas source, which is connected to the supercharger through a pipeline. The calibration gas source is used to provide an initial low-pressure source for calibration and is boosted to a stable high-pressure source through the pre-boosting effect of the supercharger.

[0010] Furthermore, the supercharger is connected to the auxiliary gas source through a pipeline. The auxiliary gas source is also used to provide an initial low-pressure source for calibration and is boosted to a stable high-pressure source through the pre-boosting effect of the supercharger.

[0011] Furthermore, the pressure control mechanism includes a first pressure regulator, a second pressure regulator, a standard pipeline connecting the first pressure regulator and the second pressure regulator, and a standard device provided on the standard pipeline. The standard device is used to sense the pressure value in the standard pipeline. When the pressure value in the standard pipeline is lower than the target calibration pressure, the first pressure regulator is used to control the high-pressure fluid of the high-pressure source to enter the standard pipeline to increase the pressure in the standard pipeline. When the pressure value in the standard pipeline is higher than the target calibration pressure, the second pressure regulator is used to control the discharge of the high-pressure fluid in the standard pipeline to reduce the pressure in the standard pipeline.

[0012] Furthermore, there is one pressure control mechanism and multiple calibration output ports. The calibration gas distribution assembly further includes multiple output branches and multiple branch control valves corresponding one by one to the multiple calibration output ports. The multiple output branches are respectively connected to the standard pipeline of the pressure control mechanism, and the multiple branch control valves are respectively provided on the corresponding output branches to be used to respectively control the corresponding output branches to output the target calibration pressure to the calibration output ports.

[0013] Alternatively, there are multiple pressure control mechanisms and multiple calibration output ports. The calibration gas distribution assembly further includes multiple output branches and multiple branch control valves that correspond one-to-one with the multiple pressure control mechanisms and multiple calibration output ports. Each output branch is respectively connected to the standard pipeline of the corresponding pressure control mechanism, and the multiple branch control valves are respectively arranged on the corresponding output branches to respectively control the corresponding output branches to output the target calibration pressure to the calibration output port.

[0014] Furthermore, a gas-liquid separator is arranged below the calibration output port. A drain pipe is connected to the bottom of the gas-liquid separator, and a drain solenoid valve is arranged on the drain pipe. The drain solenoid valve is used to control the discharge of the waste liquid separated by the gas-liquid separator through the drain pipe.

[0015] Furthermore, the auxiliary gas distribution assembly further includes a locking control valve and a locking drive gas path. The locking control valve is used to control the gas of the auxiliary gas source to be output to the output port locking mechanism through the locking drive gas path to provide the driving force for the locking control valve to lock or unlock the pressure gauge to be tested.

[0016] Furthermore, the auxiliary gas distribution assembly further includes a grasping drive gas path and a grasping control valve. The manipulator grasping mechanism is connected to the auxiliary gas source through the grasping drive gas path. The grasping control valve is arranged on the grasping drive gas path and is used to control the gas of the auxiliary gas source to be output to the manipulator grasping mechanism through the grasping drive gas path to provide the driving force for the manipulator grasping mechanism to grasp or release the pressure gauge to be tested.

[0017] Furthermore, the auxiliary gas distribution assembly further includes a positioning fixture, a positioning control valve, and a positioning drive gas path. The positioning fixture is connected to the auxiliary gas source through the positioning drive gas path. The positioning control valve is arranged on the positioning drive gas path and is used to control the gas of the auxiliary gas source to be output to the positioning fixture through the positioning drive gas path to provide the driving force for the positioning fixture to position the pressure gauge to be tested;

[0018] The auxiliary gas distribution assembly further includes a tapping mechanism, a tapping control valve, and a tapping drive gas path. The tapping mechanism is connected to the auxiliary gas source through the tapping drive gas path. The tapping control valve is arranged on the tapping drive gas path and is used to control the gas of the auxiliary gas source to be output to the tapping mechanism through the tapping drive gas path to provide the driving force for the tapping mechanism to tap the pressure gauge to be tested during the calibration process.

[0019] Adopting the above technical solutions, the present utility model has the following advantages:

[0020] Through the mutual cooperation between the calibration gas distribution assembly and the auxiliary gas distribution assembly, the present utility model realizes the full-automatic calibration operation process of the pressure gauge. Moreover, it can solve the problems of poor coordination and low stability in the full-automatic calibration process of the existing pressure gauges, and effectively improve the stability and operation efficiency of the automatic calibration of the pressure gauge. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the air distribution system of one embodiment of the present utility model.

[0022] Reference Numerals:

[0023] 10. Pressure control mechanism; 11. First pressure regulating valve; 12. Second pressure regulating valve; 13. Standard pipeline; 14. Standard device;

[0024] 20. Verification output port; 21. Output branch; 22. Branch control valve; 23. Gas-liquid separator; 24. Drain pipe; 25. Drain solenoid valve;

[0025] 30. Auxiliary gas source;

[0026] 40. Manipulator grasping mechanism; 41. Grasping drive gas path; 42. Grasping control valve;

[0027] 50. Output port locking mechanism; 51. Locking control valve; 52. Locking drive gas path;

[0028] 60. Booster;

[0029] 70. Verification gas source;

[0030] 80. Positioning fixture; 81. Positioning control valve; 82. Positioning drive gas path;

[0031] 90. Tapping mechanism; 91. Tapping control valve; 92. Tapping drive gas path. Detailed Embodiment

[0032] In order to make the technical objectives, technical solutions and beneficial effects of the present utility model clearer, the following further describes the technical solutions of the present utility model in conjunction with the attached Figure 1 drawings and specific embodiments.

[0033] As Figure 1 shown, the present utility model provides an air distribution system for fully automatic verification of pressure gauges, including: a verification air distribution component and an auxiliary air distribution component. The verification air distribution component is used to output a target verification pressure, and the auxiliary air distribution component is used to complete the automatic loading and unloading of pressure gauges;

[0034] The verification air distribution component includes a pressure control mechanism 10 and a verification output port 20. The pressure control mechanism 10 is connected to the verification output port 20 through a pipeline. The pressure control mechanism 10 is used to control the pressure to the target verification pressure, and the verification output port 20 is used to connect the pressure gauge to be verified and output the target verification pressure to the pressure gauge to be verified;

[0035] The auxiliary gas distribution assembly includes an auxiliary gas source 30, a manipulator grasping mechanism 40, and an output port locking mechanism 50. The manipulator grasping mechanism 40 and the output port locking mechanism 50 are respectively connected to the auxiliary gas source 30 through pipelines. The auxiliary gas source is used to provide a driving source for the manipulator grasping mechanism and the output port locking mechanism to perform grasping or locking actions. The output port locking mechanism is used to tightly and sealingly connect the pressure gauge to be inspected with the calibration output port.

[0036] It can be understood that each calibration output port 20 and the corresponding output port locking mechanism 50 together form a quick connection assembly 100 to achieve the quick loading and unloading of the pressure gauge to be inspected during the calibration operation.

[0037] Furthermore, the calibration gas distribution assembly further includes a supercharger 60. The supercharger 60 is connected to the pressure control mechanism 10 through a pipeline. The supercharger 60 is used to pre-boost to a stable high-pressure source for the pressure control mechanism to adjust the high pressure output from the high-pressure source to reach the target calibration pressure.

[0038] In some embodiments, as Figure 1 shown, the calibration gas distribution assembly further includes a calibration gas source 70. The calibration gas source 70 is connected to the supercharger 60 through a pipeline. The calibration gas source is used to provide an initial low-pressure source for calibration and is boosted to a stable high-pressure source through the pre-boosting effect of the supercharger.

[0039] In this embodiment, the calibration gas distribution and the auxiliary gas distribution respectively use their own gas sources, that is, the calibration gas distribution assembly uses an independent calibration gas source, and the auxiliary gas distribution assembly uses an independent auxiliary gas source. And through the independent setting of the two gas sources, the independence between the calibration work and the auxiliary loading and unloading work can be achieved, which is convenient to select appropriate pressure sources according to the power required by the auxiliary gas distribution assembly and the gas flow or gas pressure required for calibration.

[0040] In some other embodiments, the supercharger 60 is connected to the auxiliary gas source 70 through a pipeline. The auxiliary gas source is also used to provide an initial low-pressure source for calibration and is boosted to a stable high-pressure source through the pre-boosting effect of the supercharger.

[0041] In this embodiment, the auxiliary gas distribution assembly and the calibration gas distribution assembly share a common gas source, that is, the auxiliary gas source. By sharing a common gas source, the number of gas source configurations can be reduced. It should be noted that in the mode of sharing a common gas source, it is necessary to select a suitable gas source in combination with the dual gas volume requirements of the calibration work and the loading and unloading work.

[0042] Further, the pressure control mechanism 10 includes a first pressure regulating valve 11, a second pressure regulating valve 12, a standard pipeline 13 connected between the first pressure regulating valve 11 and the second pressure regulating valve 12, and a standard device 14 provided on the standard pipeline 13. The standard device 14 is used to sense the pressure value in the standard pipeline. When the pressure value in the standard pipeline 13 is lower than the target verification pressure, the first pressure regulating valve 11 is used to control the high-pressure fluid from the high-pressure source to enter the standard pipeline to increase the pressure in the standard pipeline. When the pressure value in the standard pipeline 13 is higher than the target verification pressure, the second pressure regulating valve 12 is used to control the discharge of the high-pressure fluid in the standard pipeline to reduce the pressure in the standard pipeline.

[0043] In some embodiments, as Figure 1 shown, there is one pressure control mechanism 10 and multiple verification output ports 20. The verification gas distribution assembly further includes multiple output branches 21 and multiple branch control valves 22 that correspond one by one to the multiple verification output ports 10. The multiple output branches 21 are respectively communicated with the standard pipeline 13 of the pressure control mechanism 10, and the multiple branch control valves 22 are respectively provided on the corresponding output branches 21 to be used for respectively controlling the corresponding output branches to output the target verification pressure to the verification output ports.

[0044] It can be understood that in this embodiment, the multiple output branches are respectively communicated with the standard pipeline of the pressure control mechanism, and the internal pressures are also the same. By providing branch control valves on each output branch, the connection states of the respective output branches can be effectively controlled. For example, when performing a pressure leakage test on the pressure gauges to be tested at each verification output port, the pressure control mechanism stabilizes the pressure in the standard pipeline to a certain target verification pressure, and then each branch control valve is opened one by one. Then, it is determined whether the pressure value in the standard pipeline significantly drops within a preset time through the standard device. If so, it is determined that the corresponding pressure gauge to be tested fails the pressure leakage test. If not, it is determined that the corresponding pressure gauge to be tested passes the pressure leakage test. In the subsequent indication verification process, a single pressure control mechanism can be used to synchronously supply pressure to the pressure gauges to be tested with the same range and perform synchronous indication verification.

[0045] In other embodiments, there are multiple pressure control mechanisms 10 and multiple verification output ports 20. The verification gas distribution assembly further includes multiple output branches 21 and multiple branch control valves 22 that correspond one by one to the multiple pressure control mechanisms 10 and the multiple verification output ports 20. Each output branch is respectively communicated with the standard pipeline of the corresponding pressure control mechanism, and the multiple branch control valves are respectively provided on the corresponding output branches to be used for respectively controlling the corresponding output branches to output the target verification pressure to the verification output ports.

[0046] It can be understood that in this embodiment, there are multiple pressure control mechanisms, which correspond to multiple output branches one by one. Each pressure control mechanism independently controls the pressure. When performing a leak pressure test on the pressure gauges to be tested at each calibration output port, each pressure control mechanism independently controls the pressure to a certain target calibration pressure, and then each branch control valve is opened separately. The standard device of each pressure control mechanism is used to judge whether the pressure value in the standard pipeline drops significantly within a preset time. If so, it is determined that the corresponding pressure gauge to be tested fails the leak pressure test. If not, it is determined that the corresponding pressure gauge to be tested passes the leak pressure test. By setting multiple pressure control mechanisms, independent calibration of the pressure gauges to be tested can be achieved. In the subsequent indication calibration process, since each pressure control mechanism is independent, it can control the pressure to specific calibration points based on the range requirements of the pressure gauges to be tested, that is, it can support batch calibration of pressure gauges with different ranges.

[0047] Further, a gas-liquid separator 23 is provided below the calibration output port 20. A drain pipe 24 is connected to the bottom of the gas-liquid separator. A drain solenoid valve 25 is provided on the drain pipe 24. The drain solenoid valve is used to control the discharge of the waste liquid separated by the gas-liquid separator through the drain pipe.

[0048] Further, the auxiliary gas distribution assembly further includes a locking control valve 51 and a locking drive gas path 52. The locking control valve 51 is used to control the gas from the auxiliary gas source to be output to the output port locking mechanism 50 through the locking drive gas path 52, so as to provide the driving force for the locking control valve to lock or unlock the pressure gauge to be tested.

[0049] It can be understood that the locking drive gas path has two gas paths. The first gas path is the locking gas path, and the second gas path is the unlocking gas path. The locking control valve is a two-position three-way solenoid valve. When the locking control valve is in the first connected state, that is, when the auxiliary gas source is connected to the locking gas path, the output port locking mechanism can lock the pressure gauge to be tested. When the locking control valve is in the second connected state, that is, when the auxiliary gas source is connected to the unlocking gas path, the output port locking mechanism can unlock the pressure gauge to be tested, so as to facilitate the manipulator to take it out.

[0050] Further, the auxiliary gas distribution assembly further includes a grasping drive gas path 41 and a grasping control valve 42. The manipulator grasping mechanism 40 is connected to the auxiliary gas source 30 through the grasping drive gas path 41. The grasping control valve is arranged on the grasping drive gas path and is used to control the gas from the auxiliary gas source to be output to the manipulator grasping mechanism through the grasping drive gas path, so as to provide the driving force for the manipulator grasping mechanism to grasp or release the pressure gauge to be tested.

[0051] Further, the auxiliary air distribution assembly further includes a positioning jig 80, a positioning control valve 81, and a positioning drive air path 82. The positioning jig 80 is communicated with the auxiliary air source 30 through the positioning drive air path 82. The positioning control valve 81 is arranged on the positioning drive air path and is used to control the gas of the auxiliary air source to output to the positioning jig through the positioning drive air path, so as to provide the driving force for the positioning jig to position the pressure gauge to be inspected.

[0052] The auxiliary air distribution assembly further includes a tapping mechanism 90, a tapping control valve 91, and a tapping drive air path 92. The tapping mechanism 90 is communicated with the auxiliary air source 30 through the tapping drive air path 92. The tapping control valve 91 is arranged on the tapping drive air path 92 and is used to control the gas of the auxiliary air source to output to the tapping mechanism through the tapping drive air path, so as to provide the driving force for the tapping mechanism to tap the pressure gauge to be inspected during the verification process.

[0053] It can be understood that in order to facilitate the manipulator to accurately grasp the pressure gauge to be inspected, at least one positioning jig needs to be arranged in the area to be inspected to adjust the placement state of the pressure gauge to be inspected, and the positioning jig needs to be driven by air source to achieve positioning. Usually, the number of positioning jigs is multiple. In some embodiments, multiple positioning jigs are respectively communicated with a positioning drive air path, and the positioning control valve controls the on-off of the positioning drive air path to control the positioning of the corresponding pressure gauges to be inspected by multiple positioning jigs. However, it is not limited to this. In other embodiments, multiple positioning drive air paths and multiple positioning control valves can also be respectively arranged to realize the separate positioning of each pressure gauge to be inspected in the area to be inspected.

[0054] It can be understood that the tapping mechanism corresponds to the verification output port one by one. In some embodiments, multiple tapping mechanisms are respectively communicated with a tapping drive air path, and the tapping control valve controls the on-off of the tapping drive air path to control the tapping of the corresponding pressure gauges to be inspected by multiple tapping mechanisms. However, it is not limited to this. In other embodiments, multiple tapping drive air paths and multiple tapping control valves can also be respectively arranged to realize the separate tapping of each pressure gauge to be inspected.

[0055] According to the specific embodiments of the present invention, pressure reducing valves (not shown in the figure) are respectively arranged on the upstream pipelines of the locking drive air path, the grasping drive air path, the positioning drive air path, and the tapping drive air path, so as to be adapted and adjusted according to the driving force magnitude or driving speed required by each mechanism. For example, when the locking of the locking mechanism at the output port is relatively fast, it indicates that the air pressure of the locking drive air path is relatively large. Affected by the impact force, the threaded interface of the pressure gauge to be inspected is likely to be damaged. At this time, the air pressure can be appropriately reduced through the pressure reducing valve.

[0056] According to a specific embodiment of the present utility model, the gas distribution system further includes a verification controller and an auxiliary controller (not shown in the figure). The verification controller is used to coordinately control each mechanism in the verification gas distribution assembly to cooperate with each other. The auxiliary controller is used to coordinately control each mechanism in the auxiliary gas distribution assembly to cooperate with each other. An interaction relationship is established between the verification controller and the auxiliary controller to complete the full-automatic verification operation process of the pressure gauge.

[0057] Through the mutual cooperation between the verification gas distribution assembly and the auxiliary gas distribution assembly of the present utility model, the full-automatic verification operation process of the pressure gauge is realized. Moreover, it can solve the problems of poor coordination and low stability in the full-automatic verification process of the existing pressure gauge, and effectively improve the stability and operation efficiency of the automatic verification of the pressure gauge.

[0058] The above embodiments do not impose any formal restrictions on the shape, material, structure, etc. of the present utility model. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model all belong to the protection scope of the technical solution of the present utility model.

Claims

1. A gas distribution system for fully automatic calibration based on a pressure gauge, characterized in that, Including: A calibration gas distribution component and an auxiliary gas distribution component; The calibration gas distribution component includes a pressure control mechanism and a calibration output port. The pressure control mechanism is connected to the calibration output port through a pipeline. The pressure control mechanism is used to control the pressure to the target calibration pressure, and the calibration output port is used to connect to the pressure gauge to be calibrated and output the target calibration pressure to the pressure gauge to be calibrated; The auxiliary gas distribution component includes an auxiliary gas source, a manipulator grasping mechanism, and an output port locking mechanism. The manipulator grasping mechanism and the output port locking mechanism are respectively connected to the auxiliary gas source through pipelines. The auxiliary gas source is used to provide a driving source for the manipulator grasping mechanism and the output port locking mechanism to perform grasping or locking actions. The output port locking mechanism is used to tightly seal and connect the pressure gauge to be calibrated to the calibration output port.

2. The gas distribution system for fully automatic calibration based on a pressure gauge according to claim 1, wherein The calibration gas distribution component further includes a supercharger, and the supercharger is connected to the pressure control mechanism through a pipeline. The supercharger is used to pre-boost to a stable high-pressure source for the pressure control mechanism to adjust the pressure of the high pressure output from the high-pressure source and reach the target calibration pressure.

3. The gas distribution system for fully automatic calibration based on a pressure gauge according to claim 2, wherein The calibration gas distribution component further includes a calibration gas source, and the calibration gas source is connected to the supercharger through a pipeline. The calibration gas source is used to provide an initial low-pressure source for calibration and is boosted to a stable high-pressure source through the pre-boosting effect of the supercharger.

4. The gas distribution system for full-automatic calibration based on a pressure gauge according to claim 2, characterized in that, The supercharger is connected to the auxiliary gas source through a pipeline. The auxiliary gas source is also used to provide an initial low-pressure source for calibration and is boosted to a stable high-pressure source through the pre-boosting effect of the supercharger.

5. The gas distribution system for fully automatic calibration based on a pressure gauge according to claim 2, characterized in that, The pressure control mechanism includes a first pressure regulator, a second pressure regulator, a standard pipeline connecting the first pressure regulator and the second pressure regulator, and a standard device provided on the standard pipeline. The standard device is used to sense the pressure value in the standard pipeline; when the pressure value in the standard pipeline is lower than the target calibration pressure, the first pressure regulator is used to control the high-pressure fluid of the high-pressure source to enter the standard pipeline to increase the pressure in the standard pipeline; when the pressure value in the standard pipeline is higher than the target calibration pressure, the second pressure regulator is used to control the discharge of the high-pressure fluid in the standard pipeline to reduce the pressure in the standard pipeline.

6. The gas distribution system for fully automatic calibration based on a pressure gauge according to claim 5, characterized in that, There is one pressure control mechanism and multiple calibration output ports. The calibration gas distribution component further includes multiple output branches and multiple branch control valves corresponding to the multiple calibration output ports one by one. The multiple output branches are respectively connected to the standard pipeline of the pressure control mechanism, and the multiple branch control valves are respectively arranged on the corresponding output branches to respectively control the corresponding output branches to output the target calibration pressure to the calibration output port; Or, there are multiple pressure control mechanisms and multiple calibration output ports. The calibration gas distribution component further includes multiple output branches and multiple branch control valves corresponding to the multiple pressure control mechanisms and multiple calibration output ports one by one. Each output branch is respectively connected to the standard pipeline of the corresponding pressure control mechanism, and the multiple branch control valves are respectively arranged on the corresponding output branches to respectively control the corresponding output branches to output the target calibration pressure to the calibration output port.

7. A gas distribution system for fully automatic calibration based on a pressure gauge according to claim 5, characterized in that, A gas-liquid separator is provided below the calibration output port. A drain pipe is connected to the bottom of the gas-liquid separator, and a drain solenoid valve is provided on the drain pipe. The drain solenoid valve is used to control the discharge of the waste liquid separated by the gas-liquid separator through the drain pipe.

8. A gas distribution system for fully automatic calibration based on a pressure gauge according to any one of claims 1-7, characterized in that, The auxiliary gas distribution assembly further includes a locking control valve and a locking drive gas path. The locking control valve is used to control the gas from the auxiliary gas source to be output to the output port locking mechanism through the locking drive gas path, so as to provide the driving force for the locking control valve to lock or release the pressure gauge to be calibrated.

9. A gas distribution system for fully automatic calibration based on a pressure gauge, according to any one of claims 1-7, characterized in that, The auxiliary gas distribution assembly further includes a grasping drive gas path and a grasping control valve. The manipulator grasping mechanism is connected to the auxiliary gas source through the grasping drive gas path. The grasping control valve is provided on the grasping drive gas path and is used to control the gas from the auxiliary gas source to be output to the manipulator grasping mechanism through the grasping drive gas path, so as to provide the driving force for the manipulator grasping mechanism to grasp or release the pressure gauge to be calibrated.

10. A gas distribution system for fully automatic calibration based on a pressure gauge according to any one of claims 1-7, characterized in that, The auxiliary gas distribution assembly further includes a positioning fixture, a positioning control valve, and a positioning drive gas path. The positioning fixture is connected to the auxiliary gas source through the positioning drive gas path. The positioning control valve is provided on the positioning drive gas path and is used to control the gas from the auxiliary gas source to be output to the positioning fixture through the positioning drive gas path, so as to provide the driving force for the positioning fixture to position the pressure gauge to be calibrated. The auxiliary gas distribution assembly further includes a tapping mechanism, a tapping control valve, and a tapping drive gas path. The tapping mechanism is connected to the auxiliary gas source through the tapping drive gas path. The tapping control valve is provided on the tapping drive gas path and is used to control the gas from the auxiliary gas source to be output to the tapping mechanism through the tapping drive gas path, so as to provide the driving force for the tapping mechanism to tap the pressure gauge to be calibrated during the calibration process.

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