CN112299008B - Full-automatic meter checking system and method - Google Patents
Full-automatic meter checking system and method Download PDFInfo
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- CN112299008B CN112299008B CN202011297592.XA CN202011297592A CN112299008B CN 112299008 B CN112299008 B CN 112299008B CN 202011297592 A CN202011297592 A CN 202011297592A CN 112299008 B CN112299008 B CN 112299008B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
- B65G47/914—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers provided with drive systems incorporating rotary and rectilinear movements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
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Abstract
The utility model provides a full-automatic meter checking system and a method, comprising a meter checking platform, a conveying mechanism and a multi-degree-of-freedom mechanical arm; a rotary cylinder is fixed at the tail end of the mechanical arm, clamping jaws are fixed on the rotary cylinder through a connecting piece, each clamping jaw comprises a first clamping jaw and a second clamping jaw, and the first clamping jaw and the second clamping jaw move along with the respective cylinder and are respectively used for grabbing a water meter to be detected from the conveying mechanism and grabbing a detected water meter from the meter detecting table; the rotary cylinder drives the first clamping jaw and the second clamping jaw to rotate through the connecting piece, and the first clamping jaw and the second clamping jaw rotate to exchange positions each time and discharge the stored water of the detected water meter; this openly has realized getting the table, having examined the table, having put the table and the full automation mechanized operation of rotatory dewatering, very big promotion the detection efficiency of water gauge.
Description
Technical Field
The disclosure relates to the technical field of water meter detection, in particular to a full-automatic meter detection system and method.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The water meter is widely used in the industries of tap water, heating power, chemical industry and the like, and enterprises or metering departments producing the water meter need to carry out performance verification on indicating value errors of the water meters according to regulations formulated by relevant departments.
The inventor of the present disclosure finds that most of the existing water meter detection systems have low automation degree, cannot realize automatic meter taking, meter detecting and meter placing operations, need manual cooperation, are time-consuming and labor-consuming, have high labor cost, and have certain potential safety hazards due to manual participation; meanwhile, in the existing water meter detection system, the operation of rotary water removal of the detected water meter is lacked, the time consumed for water removal by adopting heating equipment is too long, and the flow-based rapid batch water meter detection cannot be realized.
Disclosure of Invention
In order to solve the defects of the prior art, the automatic meter detecting system and method are provided, the full-automatic operation of meter taking, meter detecting, meter placing and rotary dewatering is realized, and the detection efficiency of the water meter is greatly improved.
In order to achieve the purpose, the following technical scheme is adopted in the disclosure:
the first aspect of the disclosure provides a full-automatic meter checking system.
A full-automatic meter checking system comprises a meter checking platform, a conveying mechanism and a multi-degree-of-freedom mechanical arm;
a rotary cylinder is fixed at the tail end of the mechanical arm, clamping jaws are fixed on the rotary cylinder through a connecting piece, each clamping jaw comprises a first clamping jaw and a second clamping jaw, and the first clamping jaw and the second clamping jaw move along with the respective cylinder and are respectively used for grabbing a water meter to be detected from the conveying mechanism and grabbing a detected water meter from the meter detecting table;
the rotary cylinder drives the first clamping jaw and the second clamping jaw to rotate through the connecting piece, and the first clamping jaw and the second clamping jaw rotate to exchange positions each time and discharge stored water of the detected water meter.
As some possible implementations, the connecting member is a right-angled triangular prism structure, the rotating shaft of the rotating cylinder is fixedly connected to the inclined surface of the connecting member, the first clamping jaw is connected to the first vertical surface of the connecting member, and the second clamping jaw is connected to the second vertical surface of the connecting member.
As some possible implementations, the water is discharged by rotating the water meter under test 180 degrees while the first jaw and the second jaw are rotated 180 degrees to exchange positions each time.
As some possible implementation manners, the conveying mechanism includes a first conveying belt, a second conveying belt and a third conveying belt, the first conveying belt is used for placing the water meters to be detected, the second conveying belt is used for placing the qualified water meters in the detected water meters, and the third conveying belt is used for placing the unqualified water meters in the detected water meters.
By way of further limitation, the first conveyor belt, the second conveyor belt and the third conveyor belt are all parallel to the placement direction of the water meter on the meter detecting table.
By way of further limitation, the first conveyor belt and the third conveyor belt are co-axial and co-linear.
As some possible implementation manners, the multi-degree-of-freedom mechanical arm comprises an X-axis mechanical arm, a Y-axis mechanical arm and a Z-axis mechanical arm;
the Z-axis mechanical arm is arranged on the outer side of the conveying mechanism, and the track direction of the Z-axis mechanical arm is parallel to the conveying direction of the conveying mechanism;
the X-axis mechanical arm can move along a track on the Z-axis mechanical arm, and the track direction on the X-axis mechanical arm is vertical to the conveying direction of the conveying mechanism and the arrangement direction of the water meters on the meter detecting table;
the Y-axis mechanical arm can move along a track on the X-axis mechanical arm, and the track direction on the Y-axis mechanical arm is perpendicular to the conveying direction of the conveying mechanism and the arrangement direction of the water meters of the meter detecting table.
By way of further limitation, one of the first jaw and the second jaw faces in the Y-axis direction and the other faces in the X-axis direction.
As possible realization modes, a plurality of meter detecting stations are arranged on the meter detecting platform, and clamping cylinders used for clamping the water meter are arranged on two sides of each meter detecting station.
The second aspect of the disclosure provides a fully automated meter reading method.
A full-automatic meter detecting method utilizes the full-automatic meter detecting system of the first aspect of the disclosure, and comprises the following steps:
after the water meter is assembled, the water meter is placed into a conveying belt, the water meter enters a positioning tool through a bell mouth and a surrounding baffle, the conveying belt stops transmission after a proximity sensor senses that the water meter is in place, a time relay delays to act, one end of the water meter, clamped by a clamping cylinder, is clamped by a manipulator, and the water meter is placed into a double-gauge pressing platform;
after the two water meters are placed in the pressurizing table, if the pressurizing is qualified, clamping the water meters out and placing the water meters in a meter detection conveyor belt, or placing the water meters in unqualified positions for manual maintenance;
and if no water meter exists in the meter position, performing a meter placing process, sequentially taking 8 water meters out of the water meter positioning and grabbing device and placing the water meters into the meter position, after the operation is finished, performing cylinder action of the serial independent meter clamping device to clamp the water meters, and then executing an automatic verification process.
And then, executing a meter changing process, wherein the water meter can be efficiently changed because the robot arm is provided with two clamping jaws:
the first clamping jaw grabs the water meter to be detected from the conveying mechanism, and the second clamping jaw rotates to a grabbing position in the process that the mechanical arm moves to the meter detecting table;
the second clamping jaw grabs the detected water meter in the meter position of the meter detecting table, after the second clamping jaw is lifted, the two clamping jaws are rotated, and the first clamping jaw clamping the water meter to be detected is rotated to a grabbing position;
after the water meter to be detected is placed in the meter position of the meter detecting table by the first clamping jaw, the water meter to be detected is placed down by the first clamping jaw, is quickly clamped and then is released, and the water meter is centered;
and the second clamping jaw is used for placing the detected water meter into the qualified product conveying belt or the unqualified product conveying belt according to the verification result.
As some possible implementation manners, in an initial state, if there is no water meter in the meter position of the meter detecting table, the meter placing process is performed first, the water meters to be detected are sequentially grabbed from the conveying mechanism by the mechanical arm and placed in the meter position of the meter detecting table, and after all the meter positions are placed or the meter positions with the preset number are placed, the automatic verification process is performed.
Compared with the prior art, the beneficial effect of this disclosure is:
1. the full-automatic meter detecting system and method can realize full-automatic pressure test and flow detection of the water meter without manual participation, realize full-automatic operation of meter taking, meter detecting, meter placing and rotary dewatering through the cooperation of the XYZ three-axis mechanical arm and the corresponding clamping jaw, and greatly improve the detection efficiency of the water meter.
2. The full-automatic meter detecting system and the method have the advantages that the connecting piece is set to be of a right-angle triangular prism structure, the rotating shaft of the rotating cylinder is fixedly connected with the inclined plane of the connecting piece, the first clamping jaw is connected with the first vertical surface of the connecting piece, the second clamping jaw is connected with the second vertical surface of the connecting piece, when the first clamping jaw and the second clamping jaw rotate 180 degrees at each time to exchange positions, the detected water meter rotates 180 degrees to discharge stored water, water meter drainage is realized in the process of switching the positions of the water meter to be detected and the detected water meter, drainage time control can be realized only by controlling the action time of the clamping jaws, and the working efficiency is greatly improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
Fig. 1 is a schematic structural diagram of a full-automatic meter detection system provided in embodiment 1 of the present disclosure.
Fig. 2 is a top view of a fully automated meter detection system provided in embodiment 1 of the present disclosure.
Fig. 3 is a rear view of a fully automated meter detection system provided in embodiment 1 of the present disclosure.
Fig. 4 is a side view of a fully automated meter detection system provided in embodiment 1 of the present disclosure.
Figure 5 is a front view of a jaw provided in accordance with embodiment 1 of the present disclosure.
Fig. 6 is a right side view of a jaw provided in embodiment 1 of the present disclosure.
Fig. 7 is a left side view of a jaw provided in embodiment 1 of the present disclosure.
Fig. 8 is a schematic view of the overall structure of a clamping jaw provided in embodiment 1 of the present disclosure.
Fig. 9 is a schematic diagram of a split jaw provided in embodiment 1 of the present disclosure.
Fig. 10 is a schematic structural diagram of a supercharging device provided in embodiment 3 of the present disclosure.
1. A meter checking table; 2. a mechanical arm; 3. a conveying mechanism; 4. a Z-axis mechanical arm; 5. an X-axis mechanical arm; 6. a first conveyor belt; 7. a second conveyor belt; 8. a third conveyor belt; 9. a water meter to be detected; 10. automatically clamping the cylinder; 11. a water meter station; 12. a clamping jaw; 12-1, a first clamping jaw; 12-2, a second clamping jaw; 13. a camera; 14. a water inlet bypass; 15. a surge tank; 16. a vacuum pump; 17. a measuring cylinder outer frame; 18. a water tank; 19. a water pump; 20. a filter; 21. a Y-axis mechanical arm; 22. a rotating cylinder; 23. a fixed seat; 24. a claw cylinder; 25. a claw; 26-a water meter to be detected; 27-detecting a water supply pipe of the platform; 28-water inlet port; 29-a drain port; 30-high pressure water inlet port; 31-water inlet pneumatic valve; 32-DN40 brass ball valve; 33-a first solenoid valve; 34-a second solenoid valve; 35-a third solenoid valve; 36-a fourth solenoid valve; 37-DN8 brass ball valve; 38-a first cylinder; 39-a second cylinder; 40-a boost port; 41-a pressure relief port; 42-a first piston; 43-a second piston; 44-piston rod; 45-pressure maintaining pneumatic valves; 46-needle type valve; 47-a pressure sensor; 48-a three-position four-way hand-operated valve; 49-first port; 50-a second port; 51-a third port; 52-fourth port; 53-second cylinder outlet port.
Detailed Description
The present disclosure is further described with reference to the following drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, 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 disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict.
Example 1:
as shown in fig. 1 to 9, embodiment 1 of the present disclosure provides a fully automated meter-checking system, including a meter-checking table 1, a conveying mechanism 3, and a multi-degree-of-freedom mechanical arm 2;
a rotary cylinder 22 is fixed at the tail end of the mechanical arm, a clamping jaw 12 is fixed on the rotary cylinder 22 through a connecting piece, the clamping jaw 12 comprises a first clamping jaw 12-1 and a second clamping jaw 12-2, and the first clamping jaw 12-1 and the second clamping jaw 12-2 act along with the respective cylinders and are respectively used for grabbing a water meter to be detected from a conveying mechanism and grabbing a detected water meter from a meter detecting table;
the rotary cylinder 22 drives the first clamping jaw and the second clamping jaw to rotate through the connecting piece, and the stored water of the detected water meter is discharged while the first clamping jaw and the second clamping jaw rotate to exchange positions each time.
Specifically, the first clamping jaw 12-1 and the second clamping jaw 12-2 both comprise a plurality of clamping jaws 25, and the water meter is picked up or placed by driving the clamping jaws to move through a clamping jaw air cylinder 24.
In this embodiment, fixing base 23 is right angle triangular prism structure (or right angle triangular pyramid structure), revolving cylinder's pivot and the inclined plane fixed connection of fixing base 23 (connecting piece), and first clamping jaw is connected with the first perpendicular of fixing base 23, and the second clamping jaw is connected with the second perpendicular of fixing base 23.
The water is discharged when the tested water meter rotates 180 degrees while the first clamping jaw and the second clamping jaw rotate 180 degrees to exchange positions each time.
The conveying mechanism comprises a first conveying belt 6, a second conveying belt 7 and a third conveying belt 8, the first conveying belt is used for placing a water meter 9 to be detected, the second conveying belt is used for placing a qualified water meter in the detected water meter, and the third conveying belt is used for placing an unqualified water meter in the detected water meter.
The first conveyor belt, the second conveyor belt and the third conveyor belt are all parallel to the direction of a water meter station 11 on the meter table, and the first conveyor belt and the third conveyor belt are coaxial and collinear.
In this embodiment, the multi-degree-of-freedom mechanical arm includes an X-axis mechanical arm 5, a Y-axis mechanical arm 4, and a Z-axis mechanical arm 21;
the Z-axis mechanical arm is arranged on the outer side of the conveying mechanism, and the track direction of the Z-axis mechanical arm is parallel to the conveying direction of the conveying mechanism;
the X-axis mechanical arm can move along a track on the Z-axis mechanical arm, and the track direction on the X-axis mechanical arm is vertical to the conveying direction of the conveying mechanism and the arrangement direction of the water meters on the meter detecting table;
the Y-axis mechanical arm can move along a track on the X-axis mechanical arm, and the track direction on the Y-axis mechanical arm is perpendicular to the conveying direction of the conveying mechanism and the arrangement direction of the water meters of the meter detecting table.
One of the first clamping jaw and the second clamping jaw faces to the Y-axis direction, and the other one faces to the X-axis direction.
The meter detecting table is provided with a plurality of meter detecting stations, and the two sides of each meter detecting station are provided with automatic clamping cylinders 10 used for clamping the water meter.
The meter checking platform is also provided with a water inlet bypass 14, a pressure stabilizing tank 15, a vacuum pump 16, a measuring cylinder outer side frame 17, a water tank 18, a water pump 19 and a filter 20, and is used for realizing water path supply, vacuum pumping and pressure boosting and stabilizing.
Example 2:
the embodiment 2 of the present disclosure provides a full-automatic meter detection method, and the full-automatic meter detection system according to the embodiment 1 of the present disclosure includes the following steps:
after the water meter is assembled, the water meter is placed into a conveying belt, the water meter enters a positioning tool through a bell mouth and a surrounding baffle, the conveying belt stops transmission after a proximity sensor senses that the water meter is in place, a time relay delays to act, one end of the water meter, clamped by a clamping cylinder, is clamped by a manipulator, and the water meter is placed into a double-gauge pressing platform;
after the two water meters are placed in the pressurizing table, if the pressurizing is qualified, clamping the water meters out and placing the water meters in a meter detection conveyor belt, or placing the water meters in unqualified positions for manual maintenance;
and if no water meter exists in the meter position, performing a meter placing process, sequentially taking 8 water meters out of the water meter positioning and grabbing device and placing the water meters into the meter position, after the operation is finished, performing cylinder action of the serial independent meter clamping device to clamp the water meters, and then executing an automatic verification process.
And then, executing a meter changing process, wherein the water meter can be efficiently changed because the robot arm is provided with two clamping jaws:
the first clamping jaw grabs the water meter to be detected from the conveying mechanism, and the second clamping jaw rotates to a grabbing position in the process that the mechanical arm moves to the meter detecting table;
the second clamping jaw grabs the detected water meter in the meter position of the meter detecting table, after the second clamping jaw is lifted, the two clamping jaws are rotated, and the first clamping jaw clamping the water meter to be detected is rotated to a grabbing position;
after the water meter to be detected is placed in the meter position of the meter detecting table by the first clamping jaw, the water meter to be detected is placed down by the first clamping jaw, is quickly clamped and then is released, and the water meter is centered;
and the second clamping jaw is used for placing the detected water meter into the qualified product conveying belt or the unqualified product conveying belt according to the verification result.
In an initial state, if no water meter exists in the meter position of the meter detecting table, the meter placing process is firstly carried out, the water meters to be detected are sequentially grabbed from the conveying mechanism through the mechanical arm and placed in the meter position of the meter detecting table, and the automatic verification process is started after all the meter positions are placed or the meter positions with the preset number are placed.
Specifically, taking an eight-station table checking as an example:
(1) the operation process of the feeding and discharging circulation program of the manipulator is as follows:
A. the method comprises the following steps that a manipulator claw cylinder drives a claw to clamp a product to be detected → B, a manipulator rotary cylinder drives a clamping jaw to turn → C, a manipulator moves to a station which is detected to be completed → D, the manipulator claw cylinder drives the claw to clamp the product which is detected to be completed → E, the manipulator rotary cylinder drives a clamping jaw to turn over water meter empty water → F, the undetected product is placed in the station → G, the manipulator rotary cylinder drives the clamping jaw to turn → H, and the detected product is placed in a corresponding conveying belt (the conveying belt is divided into two paths of a good product and a bad product) → A according to a detection result.
(2) Stage body detection flow:
A. eight water meters are placed in a detection station → B, an automatic clamping cylinder clamps and fixes the water meter → C, a high-speed camera moves above the water meter → D, preparation work before verification is completed → E, a detection table is vacuumized → F, the vacuumized action is completed, water inlet bypass slow flow water injection → G, automatic verification → H, verification completion detection result uploading → I, automatic clamping cylinder loosening → G, and a manipulator is used for taking and replacing the meter → A.
Example 3:
an embodiment 3 of the present disclosure provides a full-automatic meter detection system, including various structures in embodiment 1, and further including a pressure boosting device, as shown in fig. 10, where the pressure boosting device is connected to a water supply pipeline, specifically including:
the water meter to be detected 26, a water supply pipe 27 of the detection table, a water inlet port 28, a water discharge port 29, a high-pressure water inlet port 30, a water inlet pneumatic valve 31, a DN40 brass ball valve 32, a first solenoid valve 33, a second solenoid valve 34, a third solenoid valve 35, a fourth solenoid valve 36, a DN8 brass ball valve 37, a first cylinder 38, a second cylinder 39, a pressurization port 40, a pressure relief port 41, a first piston 42, a second piston 43, a piston connecting rod 44, a pressure maintaining pneumatic valve 45, a needle valve 46, a pressure sensor 47, a three-position four-way hand-operated valve 48, a first port 49, a second port 50, a third port 51, a fourth port 52 and a second cylinder water outlet port 53.
When a manual pressurization mode is adopted;
the three-position four-way hand-operated valve comprises a first port, a second port, a third port and a fourth port, wherein the first port is communicated with a system water inlet port through a pipeline, the second port is communicated with a water discharge port through a pipeline, the third port is communicated with a pressure relief port, and the fourth port is communicated with a pressurization port.
The pressure cylinder comprises a first cylinder body and a second cylinder body which are communicated, the inner diameter of the second cylinder body is smaller than that of the first cylinder body, and a pressure sensor is arranged on a communication pipeline between a water outlet port of the second cylinder body and a water inlet port (high-pressure water inlet port) of the water meter to be detected;
a first piston is arranged in the first cylinder body, a second piston is arranged in the second cylinder body, and the first piston is connected with the second piston through a piston connecting rod;
the first cylinder body is divided into a first cavity and a second cavity by the first piston, the pressurization port is arranged on the outer wall of the first cavity, the pressure relief port is arranged on the outer wall of the second cavity, and the second cavity is communicated with the second cylinder body.
And a pressure maintaining pneumatic valve and a needle valve are arranged on a pipeline between the water outlet port of the second cylinder body and the pressure sensor.
A DN8 brass ball valve (first ball valve) is arranged on a communication pipeline of the pipeline between the water inlet port of the system and the third electromagnetic valve and the fourth electromagnetic valve.
A DN40 brass ball valve (a second ball valve) and a water inlet pneumatic valve are arranged on a pipeline between the water inlet port of the system and the water inlet port (a high-pressure water inlet port) of the water meter to be detected.
The supercharging process comprises the following steps:
all the electromagnetic valves are closed;
the inlet pneumatic valve is closed, the handle of the three-position four-way hand-operated valve is screwed to the bottom right, and water at the water inlet flows in from the first port of the three-position four-way hand-operated valve and flows out from the fourth port and then enters the pressurization port;
the pressure relief port discharges water outwards through a third port and a second port of the three-position four-way hand-operated valve, and a large piston in the pressure cylinder drives a small piston to move forwards under the action of water pressure so as to compress water in the pipeline to realize pressurization.
The pressure maintaining process comprises the following steps: after the pressure detection element detects that the pressure of water in the water meter reaches a preset pressure, the handle of the three-position four-way hand-operated rotary valve is moved to a middle position, and a third port and a fourth port of the three-position four-way hand-operated rotary valve are in a closed state, so that pressure maintaining is realized;
the pressure relief process is as follows:
closing the inlet pneumatic valve;
after the pressure maintaining time reaches a certain time, the handle of the three-position four-way hand-operated valve is screwed to the bottom to the left, water at the water inlet flows in from the first port of the three-position four-way hand-operated valve and flows out from the third port, and water enters from the pressure relief port;
water in the first cylinder body flows through the fourth port and the second port of the three-position four-way hand-operated valve from the pressurization port to be drained outwards, and the first piston drives the second piston to move under the action of water pressure to reduce pressure of the water in the pipeline to achieve pressure relief.
When the automatic pressing mode is adopted;
the automatic control system comprises various structures in an automatic mode, and further comprises a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve which are sequentially communicated in series through pipelines;
a pipeline between the first electromagnetic valve and the second electromagnetic valve is communicated with a water drainage port, a pipeline between the second electromagnetic valve and the third electromagnetic valve is communicated with a pressurization port, a pipeline between the third electromagnetic valve and the fourth electromagnetic valve is communicated with a system water inlet port, and a pipeline between the first electromagnetic valve and the fourth electromagnetic valve is communicated with a pressure relief port.
The first solenoid valve and the third solenoid valve are connected in parallel to the first control circuit, and the second solenoid valve and the fourth solenoid valve are connected in parallel to the second control circuit.
The handle of the three-position four-way hand-operated valve is ensured to be in the middle position.
The supercharging method using the supercharging system comprises the following steps:
the supercharging process comprises the following steps:
the water inlet pneumatic valve is closed, the first electromagnetic valve and the third electromagnetic valve are opened simultaneously, water at the water inlet enters the pressurization port through the third electromagnetic valve, and water is discharged to the water discharge port through the first electromagnetic valve at the pressure relief port;
under the action of water pressure, the first piston in the first cylinder body drives the second piston in the second cylinder body to move so as to compress water in the pipeline to realize pressurization.
The pressure maintaining process comprises the following steps:
after the pressure detection element detects that the pressure of water in the water meter reaches the preset pressure, the first electromagnetic valve and the third electromagnetic valve are closed to realize pressure maintaining, and the pressure maintaining pneumatic valve is also closed at the same time to enhance the pressure maintaining, so that the safety accident caused by continuous pressure rise due to cylinder body or pipeline faults is prevented;
the pressure relief process comprises the following steps:
the water inlet pneumatic valve is opened, after the pressure maintaining time reaches the set time, the second electromagnetic valve and the fourth electromagnetic valve are simultaneously opened, water flow enters the pressure relief port, and the pressurization port drains water to the water drainage port through the second electromagnetic valve;
under the action of water pressure, the first piston drives the second piston to move to release pressure of water in the pipeline, so that pressure relief is realized, and meanwhile, the large piston of the pressure cylinder returns to an initial state to prepare for the next round of automatic pressure boosting process.
The structure provided by the embodiment can realize manual and automatic switching, and the application range of the pressurization system is expanded.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (7)
1. A full-automatic meter checking system is characterized by comprising a meter checking platform, a conveying mechanism and a multi-degree-of-freedom mechanical arm;
a rotary cylinder is fixed at the tail end of the mechanical arm, clamping jaws are fixed on the rotary cylinder through a connecting piece, each clamping jaw comprises a first clamping jaw and a second clamping jaw, and the first clamping jaw and the second clamping jaw move along with the respective cylinder and are respectively used for grabbing a water meter to be detected from the conveying mechanism and grabbing a detected water meter from the meter detecting table;
the rotary cylinder drives the first clamping jaw and the second clamping jaw to rotate through the connecting piece, and the first clamping jaw and the second clamping jaw rotate to exchange positions each time and discharge the stored water of the detected water meter;
the mechanical arm with multiple degrees of freedom comprises an X-axis mechanical arm, a Y-axis mechanical arm and a Z-axis mechanical arm;
the Z-axis mechanical arm is arranged on the outer side of the conveying mechanism, and the track direction of the Z-axis mechanical arm is parallel to the conveying direction of the conveying mechanism; the X-axis mechanical arm can move along a track on the Z-axis mechanical arm, and the track direction on the X-axis mechanical arm is vertical to the conveying direction of the conveying mechanism and the arrangement direction of the water meters on the meter detecting table; the Y-axis mechanical arm can move along a track on the X-axis mechanical arm, and the track direction on the Y-axis mechanical arm is vertical to the conveying direction of the conveying mechanism and the arrangement direction of the water meters on the meter detecting table;
one of the first clamping jaw and the second clamping jaw faces to the Y-axis direction, and the other one faces to the X-axis direction;
the connecting piece is of a right-angle triangular prism structure, a rotating shaft of the rotating cylinder is fixedly connected with an inclined plane of the connecting piece, the first clamping jaw is connected with a first vertical plane of the connecting piece, and the second clamping jaw is connected with a second vertical plane of the connecting piece;
alternatively, the first and second electrodes may be,
the water is discharged when the tested water meter rotates 180 degrees while the first clamping jaw and the second clamping jaw rotate 180 degrees to exchange positions each time.
2. The fully automated meter checking system according to claim 1, wherein the conveying mechanism comprises a first conveyor belt, a second conveyor belt and a third conveyor belt, the first conveyor belt is used for placing the water meters to be checked, the second conveyor belt is used for placing the qualified water meters in the checked water meters, and the third conveyor belt is used for placing the unqualified water meters in the checked water meters.
3. The fully automated meter inspection system of claim 2, wherein the first conveyor, the second conveyor, and the third conveyor are all parallel to the direction of placement of the water meter on the meter inspection station.
4. A fully automated meter inspection system according to claim 2, wherein the first conveyor and the third conveyor are co-axial and co-linear.
5. The full-automatic meter checking system according to claim 1, wherein a plurality of meter checking stations are arranged on the meter checking platform, and clamping cylinders for clamping the water meter are arranged on two sides of each meter checking station.
6. A full-automatic meter detecting method is characterized in that the full-automatic meter detecting system of any one of claims 1 to 5 is utilized, and the method comprises the following steps:
the first clamping jaw grabs the water meter to be detected from the conveying mechanism, and the second clamping jaw rotates to a grabbing position in the process that the mechanical arm moves to the meter detecting table;
the second clamping jaw grabs the detected water meter in the meter position of the meter detecting table, after the second clamping jaw is lifted, the two clamping jaws are rotated, and the first clamping jaw clamping the water meter to be detected is rotated to a grabbing position;
after the water meter to be detected is placed in the meter position of the meter detecting table by the first clamping jaw, the water meter to be detected is placed down by the first clamping jaw, is quickly clamped and then is released, and the water meter is centered;
and the second clamping jaw is used for placing the detected water meter into the qualified product conveying belt or the unqualified product conveying belt according to the verification result.
7. The full-automatic meter detecting method according to claim 6, wherein in an initial state, if no water meter exists in the meter position of the meter detecting table, a meter placing process is performed, the water meters to be detected are sequentially grabbed from the conveying mechanism by the mechanical arm and placed in the meter position of the meter detecting table, and after all the meter positions are placed or a predetermined number of meter positions are placed, an automatic verification process is performed.
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| US5938071A (en) * | 1998-07-28 | 1999-08-17 | Sauder; Gregg A. | Test stand for calibrating seed meters |
| CN103801976A (en) * | 2014-02-11 | 2014-05-21 | 喻铁军 | Automatic carrying clamp hand assembly |
| CN105606182B (en) * | 2015-12-30 | 2019-02-19 | 连云港连利·福思特表业有限公司 | Full-automatic unmanned tandem calibration device for water meters on duty |
| CN106238346B (en) * | 2016-09-27 | 2018-06-05 | 周杰 | The device and its application method of gas meter or water meter are detected using robot |
| CN207487782U (en) * | 2017-12-12 | 2018-06-12 | 杭州天马计量科技有限公司 | Intellectual water meter detection device |
| CN208296947U (en) * | 2018-06-11 | 2018-12-28 | 福建省计量科学研究院（福建省眼镜质量检验站） | A kind of apparatus for calibrating water meter |
| CN108871513A (en) * | 2018-07-27 | 2018-11-23 | 郑州圻心智能设备有限公司 | A kind of number row water meters in series connection intelligent measurement machine |
| CN209036081U (en) * | 2018-10-30 | 2019-06-28 | 苏州润禄自动化科技有限公司 | Rotary machine tool loading and unloading mechanical device |
| CN210615923U (en) * | 2019-10-09 | 2020-05-26 | 临沂市福利水表配件厂 | Automatic feeding device for processing water meter shell |
| CN110987131A (en) * | 2019-12-30 | 2020-04-10 | 山东厚德测控技术股份有限公司 | Automatic change water gauge and detect stage body |
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