CN109186886B - Method and apparatus for detecting air tightness of tube for EGR cooler of automobile - Google Patents
Method and apparatus for detecting air tightness of tube for EGR cooler of automobile Download PDFInfo
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- CN109186886B CN109186886B CN201810817950.1A CN201810817950A CN109186886B CN 109186886 B CN109186886 B CN 109186886B CN 201810817950 A CN201810817950 A CN 201810817950A CN 109186886 B CN109186886 B CN 109186886B
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- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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Abstract
The invention discloses an air tightness detection method and equipment for a tube for an automobile EGR cooler, relates to the technical field of automobile detection, and mainly aims to solve the problem that whether leakage exists or not is determined by manually observing product bubbling through an original water detection machine in the detection of air tightness of the tube for the existing EGR cooler. The method comprises the following steps: when the pipe for the EGR cooler to be detected is inserted into the feeding detection device, the clamping device enables the pipe for the EGR cooler to be tightly attached to the feeding detection device in a pressing mode; filling air pressure into the tube for the EGR cooler through an air inlet tube, and judging whether the air pressure in the feeding detection device is safe air pressure or not according to an air pressure sensor in the feeding detection device; if the pressure is safe, the clamping device releases the pressure in the pipe for the EGR cooler in a pressure relief mode and sends an air-tight safety signal to the automatic sorting device; and when the loading disc rotates to the unloading position corresponding to the automatic sorting device, the automatic sorting device unloads.
Description
Technical Field
The invention relates to the technical field of automobile detection, in particular to an air tightness detection method and equipment for an automobile EGR cooler pipe.
Background
With the rapid development of the automobile industry, the exquisite automobile manufacturing technology and the stable automobile running quality are the objectives of every automobile assembly enterprise, so that the automobile industry has a brilliant future. Among them, the EGR (Exhaust Gas Recirculation) cooler pipe of an automobile is an important production part in the automobile industry, and the airtightness of the EGR cooler pipe determines the manufacturing quality of the automobile.
At present, the existing pipe for the EGR cooler is detected in an air tightness manner in a manual mode, namely, an original water detection machine is used for determining whether leakage occurs or not by manually observing bubbling of a product, however, in actual production, detection personnel are easy to tire, neglect some tiny leakage, and even cause some detection and counterfeiting phenomena due to the reason of pursuing personal yield, so that the air tightness detection generates larger errors, the use of the pipe for the EGR cooler of an automobile is influenced, and even the quality of automobile accessories is reduced.
Disclosure of Invention
In view of the above, the invention provides a method and a device for detecting air tightness of a tube for an automobile EGR cooler, and mainly aims to solve the problem that whether the existing tube for the EGR cooler leaks or not is determined by manually observing bubbling of a product through an existing water detection machine.
According to an aspect of the present invention, there is provided a method of detecting airtightness of a tube for an EGR cooler of an automobile, comprising:
when the pipe for the EGR cooler to be detected is inserted into the feeding detection device, the clamping device enables the pipe for the EGR cooler to be tightly attached to the feeding detection device in a pressing mode;
filling air pressure into the tube for the EGR cooler through an air inlet tube positioned below the feeding detection device in the feeding disc, and judging whether the air pressure in the feeding detection device is safe or not according to an air pressure sensor positioned in the feeding detection device, wherein the feeding disc is provided with a plurality of feeding detection devices;
if the air pressure in the feeding detection device is safe air pressure, the clamping device releases the air pressure in the pipe for the EGR cooler in a pressure relief mode and sends an air-tight safety signal to the automatic sorting device;
when the feeding disc rotates through the first rotating motor to enable the EGR cooler pipe to rotate to the discharging position corresponding to the automatic sorting device, the automatic sorting device discharges the EGR cooler pipe according to the air tightness safety signal and distributes the EGR cooler pipe to the position corresponding to the air tightness qualified product.
Further, the method further comprises:
monitoring air inlet information and clamping information in the feeding detection device according to the input using condition of the feeding detection device, and sending first alarm information if a preset first abnormal monitoring condition appears in the air inlet information, the clamping information and the pressing information, wherein the using condition is whether the feeding detection device stops being used or not;
and monitoring the unloading information and the swing information of the automatic sorting device in real time according to the unloading position information and the swing arm position information of the automatic sorting device, and sending second alarm information if preset second abnormal monitoring conditions occur in the unloading information and the swing information.
Further, before the clamping device tightly attaches the tube for the EGR cooler to the feeding detection device by pressing when the tube for the EGR cooler to be detected is inserted into the feeding detection device, the method further comprises:
indicating an indicator lamp corresponding to the feeding detection device which can be used for displaying according to the condition that whether the input feeding detection device stops being used or not;
the method comprises the following steps that air pressure is filled into a pipe for the EGR cooler through an air inlet pipe located below a feeding detection device in a feeding disc, whether the air pressure in the feeding detection device is safe or not is judged according to an air pressure sensor located in the feeding detection device, air inlet information and clamping information in the feeding detection device are monitored according to the input using condition of the feeding detection device, and if the air inlet information, the clamping information and the pressing information are monitored, when a preset first abnormal monitoring condition appears, first alarm information is sent, wherein the first alarm information comprises the following steps:
if the feeding detection device is used normally and the clamping information is analyzed to obtain a result that the clamping is closed, acquiring air inlet information obtained after the feeding detection device pressurizes the tube for the EGR cooler, monitoring whether the air inlet information is larger than a preset air inlet abnormal condition or not, and sending first alarm information.
Further, the method further comprises:
the automatic sorting device comprises a flat bar, a dumping device, a feeding disc, a timer, a rotating disc, a third alarm message and a third alarm message.
Further, the tube for the EGR cooler is a U-shaped tube, the feeding detection device is provided with a plurality of circular holes for inserting the two ends of the U-shaped tube, the feeding disc rotates counterclockwise through the first rotating motor, and the feeding detection device which completes the insertion of the U-shaped tube is moved to a position corresponding to the clamping device, so that the clamping device sequentially applies pressure to the U-shaped tube which completes the insertion.
According to an aspect of the present invention, there is provided an airtightness detecting apparatus for a tube for an EGR cooler of an automobile, comprising: a controller, a feeding detection device, a clamping device and an automatic sorting device,
the controller is in data connection with the feeding detection device, the clamping device and the automatic sorting device respectively, the automatic sorting device is located on one side of a feeding disc, the feeding disc is provided with a plurality of feeding detection devices, the feeding disc rotates through a first rotating motor, and the clamping device is fixedly arranged above the feeding disc through a support frame and is perpendicular to the feeding detection devices;
the controller is used for enabling the tube for the EGR cooler to be tightly attached to the feeding detection device through a pressing mode by the clamping device when the tube for the EGR cooler to be detected is inserted into the feeding detection device;
the controller is also used for filling air pressure into the tube for the EGR cooler through an air inlet tube positioned below the feeding detection device in the feeding disc, and judging whether the air pressure in the feeding detection device is safe air pressure or not according to an air pressure sensor positioned in the feeding detection device;
the controller is further used for releasing the air pressure in the pipe for the EGR cooler by the clamping device in a pressure relief mode and sending an air-tight safety signal to the automatic sorting device if the air pressure in the feeding detection device is safe air pressure;
the controller is further used for unloading the tubes for the EGR cooler according to the airtight safety signal by the automatic sorting device when the feeding disc rotates through the first rotating motor to enable the tubes for the EGR cooler to rotate to the unloading position corresponding to the automatic sorting device, and distributing the tubes for the EGR cooler to the position corresponding to the airtight qualified product.
Furthermore, a sensor for detecting air inlet information and clamping information is arranged on the feeding detection device, the automatic sorting device comprises a second rotating motor and pneumatic mechanical arm equipment,
the controller is further configured to monitor air inlet information and clamping information in the feeding detection device according to an input use condition of the feeding detection device, and send first alarm information if a preset first abnormal monitoring condition occurs in the air inlet information, the clamping information and the press-in information, where the use condition is whether the feeding detection device stops being used;
the controller is further used for monitoring the discharging information and the swinging information of the automatic sorting device in real time according to the discharging position information and the swinging arm position information of the automatic sorting device, and sending second alarm information if preset second abnormal monitoring conditions occur in the discharging information and the swinging information.
Further, the controller is further configured to indicate an indicator light corresponding to the available feeding detection device to display according to whether the input feeding detection device stops being used;
the controller is specifically configured to, if the feeding detection device is in normal use and a result obtained by analyzing clamping information is that the feeding detection device is clamped and sealed, obtain air intake information obtained after the feeding detection device pressurizes the pipe for the EGR cooler, monitor whether the air intake information is greater than a preset air intake abnormal condition, and send first alarm information.
Further, the controller is further configured to acquire the action time of the flat bar, the dumping action time and the full-automatic interval time of the automatic sorting device during unloading through a timer installed on the automatic sorting device, judge whether the action time of the flat bar, the dumping action time and the full-automatic interval time are matched with the rotation time interval of the loading disc, and if not, instruct the loading disc to stop rotating and send third alarm information.
Further, the tube for the EGR cooler is a U-shaped tube, the feeding detection device is provided with a plurality of circular holes for inserting the two ends of the U-shaped tube, the feeding disc rotates counterclockwise through the first rotating motor, and the feeding detection device which completes the insertion of the U-shaped tube is moved to a position corresponding to the clamping device, so that the clamping device sequentially applies pressure to the U-shaped tube which completes the insertion.
According to still another aspect of the present invention, there is provided a storage medium having stored therein at least one executable instruction that causes a processor to perform operations corresponding to the above-described method for detecting airtightness of a tube for an EGR cooler of an automobile.
According to still another aspect of the present invention, there is provided a terminal including: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is used for storing at least one executable instruction, and the executable instruction enables the processor to execute the operation corresponding to the air tightness detection method of the tube for the automobile EGR cooler.
By the technical scheme, the technical scheme provided by the embodiment of the invention at least has the following advantages:
the invention provides an air tightness detection method and equipment for an EGR cooler pipe of an automobile, which comprises the following steps that firstly, when the EGR cooler pipe to be detected is inserted into a feeding detection device, a clamping device enables the EGR cooler pipe to be tightly attached to the feeding detection device in a pressing mode; filling air pressure into the tube for the EGR cooler through an air inlet tube positioned below the feeding detection device in the feeding disc, and judging whether the air pressure in the feeding detection device is safe or not according to an air pressure sensor positioned in the feeding detection device, wherein the feeding disc is provided with a plurality of feeding detection devices; if the air pressure in the feeding detection device is safe air pressure, the clamping device releases the air pressure in the pipe for the EGR cooler in a pressure relief mode and sends an air-tight safety signal to the automatic sorting device; when the feeding disc rotates through the first rotating motor to enable the EGR cooler pipe to rotate to the discharging position corresponding to the automatic sorting device, the automatic sorting device discharges the EGR cooler pipe according to the air tightness safety signal and distributes the EGR cooler pipe to the position corresponding to the air tightness qualified product. Compared with the existing detection of air tightness of the tube for the EGR cooler, which is to determine whether leakage occurs by manually observing product bubbling through an original water detection machine, the embodiment of the invention applies pressure to the tube for the EGR cooler inserted into the feeding detection device through the clamping device, so that the tube is tightly attached to the feeding detection device, then the air charging pressure is carried out through the air inlet pipe in the feeding detection device, whether the air pressure in the feeding detection device is safe air pressure is detected, if the air pressure is safe air pressure, the tubes for the EGR cooler are unloaded to the corresponding position of the qualified tube for the EGR cooler through the automatic sorting device, the automatic air tightness detection of the tube for the EGR cooler is realized, the extremely small leakage condition is effectively and quickly detected, the phenomenon of artificial leakage detection is avoided, the waste of human resources is reduced, and the detection efficiency of the tube for the EGR cooler is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a flow chart illustrating a method for detecting air tightness of a tube for an EGR cooler of an automobile according to an embodiment of the present invention;
fig. 2 is a physical schematic diagram illustrating an air tightness detecting apparatus of a tube for an EGR cooler of an automobile according to an embodiment of the present invention;
FIG. 3 is a flow chart illustrating another method for detecting air tightness of a tube for an EGR cooler of an automobile according to an embodiment of the present invention;
FIG. 4 is a block diagram illustrating an apparatus for detecting air tightness of a tube for an EGR cooler of an automobile according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
An embodiment of the present invention provides an air tightness detection method for a tube for an EGR cooler of an automobile, as shown in fig. 1, the method includes:
101. when the pipe for the EGR cooler to be detected is inserted into the feeding detection device, the clamping device enables the pipe for the EGR cooler to be tightly attached to the feeding detection device in a pressing mode.
The tube for the EGR cooler is a U-shaped tube, the feeding detection device is provided with a plurality of round holes for inserting the tube openings at two ends of the U-shaped tube, the clamping device is fixedly arranged above the feeding disc through a support frame and is perpendicular to the feeding detection device, and as shown in fig. 2, when a worker inserts the U-shaped tube into the feeding detection device, the clamping device applies pressure downwards through a pneumatic connecting device to press the U-shaped tube into the feeding detection device, so that the U-shaped tube is tightly attached to the feeding detection device and is airtight.
It should be noted that the clamping device presses downwards so that the process of tightly combining the U-shaped tube and the feeding detection device can be set according to a preset time interval and matched with the rotating speed of the feeding disc. For example, 6 feeding detection devices are arranged on the feeding disc, namely one feeding detection device is arranged at intervals of 60 degrees, the initial position of the clamping device can be vertically above any one feeding detection device, the feeding disc rotates by 60 degrees every 30 seconds through the first rotating motor, and correspondingly, the clamping device presses downwards once every 30 seconds through the pneumatic connecting device, so that a worker needs to insert the U-shaped pipe into the feeding detection device within 30 seconds of the non-pressing of the clamping device.
102. And filling air pressure into the tube for the EGR cooler through an air inlet tube positioned below the feeding detection device in the feeding disc, and judging whether the air pressure in the feeding detection device is safe or not according to an air pressure sensor positioned in the feeding detection device.
The feeding disc is provided with a plurality of feeding detection devices, namely the feeding disc is driven to rotate by the rotating motor, so that each feeding detection device inserted into the U-shaped pipe can perform clamping operation and fill air pressure. In addition, an air inlet pipe and an air outlet pipe are arranged below each feeding detection device and are respectively used for air inlet and air outlet, after the U-shaped pipes are tightly attached to the feeding detection devices through the clamping devices, the air inlet pipes fill air pressure into the feeding detection devices, so that each U-shaped pipe can be filled with the air pressure, a pressurized closed space is formed in each feeding detection device, and then the air pressure sensor detects the volume air pressure in the closed space to judge whether the volume air pressure is safe or not.
It should be noted that the safe air pressure in the embodiment of the present invention is the lowest air pressure at which the filling air pressure can leak, for example, the air pressure filled with 100KPa, the safe air pressure cannot be lower than 95KPa, and if the safe air pressure is lower than 95KPa, the safe air pressure is regarded as the unsafe air pressure.
103. And if the air pressure in the feeding detection device is safe, the clamping device releases the air pressure in the pipe for the EGR cooler in a pressure relief mode and sends an air-tight safety signal to the automatic sorting device.
In the embodiment of the invention, when the air pressure in the feeding detection device is determined to be safe air pressure, the air tightness of the U-shaped pipe inserted into the feeding detection device is good, and the air leakage phenomenon does not exist, so that the U-shaped pipe can be used for automobile parts. After the pressure is determined to be safe, the clamping device moves upwards, so that the U-shaped pipe is not tightly attached to the feeding detection device any more, and pressure relief is achieved. After the pressure is released, the U-shaped tubes for the automobile parts are qualified products, so that an airtight safety signal needs to be sent to the automatic sorting device, so that the automatic sorting device can discharge the U-shaped tubes into the positions of the qualified products according to the safety signal.
It should be noted that the automatic sorting device is located on one side of the feeding disc, the automatic sorting device includes a second rotating motor and pneumatic mechanical arm equipment, the pneumatic mechanical arm equipment is driven to rotate to the position where the feeding detection device is inserted into the U-shaped tube through rotation of the rotating motor, and the pneumatic mechanical arm equipment extends the mechanical arm to lift a group of U-shaped tubes, so that discharging is achieved. In the process, the unloading time interval of the pneumatic mechanical arm is the same as the rotating time interval of the loading disc, so that when each loading detection device moves to the sorting position of the automatic sorting device, the pneumatic mechanical arm equipment can just lift a group of U-shaped tubes. The automatic sorting device then discharges these U-tubes into the position of the acceptable product by means of the identified airtight safety signal.
104. When the feeding disc rotates through the first rotating motor to enable the EGR cooler pipe to rotate to the discharging position corresponding to the automatic sorting device, the automatic sorting device discharges the EGR cooler pipe according to the air tightness safety signal and distributes the EGR cooler pipe to the position corresponding to the air tightness qualified product.
For the embodiment of the invention, the qualified U-shaped pipe is fully automatically unloaded to the position corresponding to the air-tightness qualified product, so that the phenomenon of missing detection of workers is avoided, the detection efficiency of the workers is improved, the workers only need to insert the U-shaped pipe into the loading detection device, the operation amount of the workers is reduced, and the air-tightness detection precision of the pipe for the automobile EGR cooler is improved.
The invention provides an air tightness detection method of a tube for an automobile EGR cooler, compared with the existing method that the air tightness detection of the tube for the EGR cooler is to confirm whether leakage occurs by manually observing product bubbling through an original water detection machine, the embodiment of the invention applies pressure to the tube for the EGR cooler inserted on a feeding detection device through a clamping device to ensure that the tube is tightly attached to the feeding detection device, then, filling air pressure is carried out through an air inlet pipe in the feeding detection device, whether the air pressure in the feeding detection device is safe air pressure or not is detected, if the air pressure is safe air pressure, the tubes for EGR coolers are discharged into the positions corresponding to the qualified tubes for EGR coolers by the automatic sorting apparatus, realizes automatic air tightness detection of the tube for the EGR cooler, effectively and quickly detects the extremely small leakage condition, the phenomenon of artificial omission is avoided, the waste of human resources is reduced, and therefore the detection efficiency of the pipe for the EGR cooler is improved.
An embodiment of the present invention provides another method for detecting air tightness of a tube for an EGR cooler of an automobile, as shown in fig. 3, the method includes:
201. and indicating an indicator lamp corresponding to the feeding detection device which can be used for displaying according to the condition that whether the input feeding detection device stops being used or not.
For the embodiment of the invention, in order to avoid using the feeding detection device with problems for detection, the feeding detection device which is stopped to be used can be input into the current controller so as to use the feeding detection device which works normally for detection. The staff can judge the stop condition of the feeding detection device by observing whether each feeding detection device is available or not or by recording whether each feeding detection device frequently leaks. For example, if the feeding detection device 1 on the feeding disc is damaged, the current controller inputs the stop of using the feeding detection device 1, and when the controller controls the feeding disc to rotate, the controller directly skips pressing on the feeding detection device 1 and instructs an indicator lamp corresponding to the feeding detection device 1 to light up, so that a worker can avoid inserting a U-shaped pipe into the feeding detection device 1 during feeding.
It should be noted that, in the embodiment of the present invention, an indicator light is disposed beside each feeding detection device on the feeding disc, and is used for displaying a current use condition of the feeding detection device, so that a worker can feed materials according to the displayed condition.
202. When the pipe for the EGR cooler to be detected is inserted into the feeding detection device, the clamping device enables the pipe for the EGR cooler to be tightly attached to the feeding detection device in a pressing mode.
This step is the same as step 101 shown in fig. 1, and is not described herein again.
203. And filling air pressure into the tube for the EGR cooler through an air inlet tube positioned below the feeding detection device in the feeding disc, and judging whether the air pressure in the feeding detection device is safe or not according to an air pressure sensor positioned in the feeding detection device.
This step is the same as step 102 shown in fig. 1, and is not described herein again.
204. Monitoring air inlet information and clamping information in the feeding detection device according to the input service condition of the feeding detection device, and sending first alarm information if a preset first abnormal monitoring condition appears in the air inlet information, the clamping information and the press-in information.
For the embodiment of the present invention, the use condition is whether the feeding detection devices are stopped to be used, each feeding detection device is configured with an air pressure sensor for detecting air intake information in the feeding detection device, the clamping information is a height pressed down in a pressing process by the clamping device and includes a pressing start position and a pressing end position, the first abnormal monitoring condition is abnormal air intake information and abnormal clamping information, for example, an abnormal value set by the air intake information may be 90% of the air intake pressure, and an abnormal value set by the clamping information may be 80% of the pressing start position and the pressing end position, which is not specifically limited in the embodiment of the present invention. The first alarm information is alarm information sent to the worker when abnormal air inlet information and abnormal clamping information occur, and can be a sound alarm.
For the embodiment of the present invention, step 204 may specifically include: if the feeding detection device is used normally and the clamping information is analyzed to obtain a result that the clamping is closed, acquiring air inlet information obtained after the feeding detection device pressurizes the tube for the EGR cooler, monitoring whether the air inlet information is larger than a preset air inlet abnormal condition or not, and sending first alarm information.
Specifically, when the feeding detection device is in a normal use state, whether the clamping device presses the U-shaped pipe or not is analyzed through a pressing initial position and a pressing final position in the clamping information, whether the U-shaped pipe and the feeding detection device are clamped and sealed or not is judged, then the air inlet pipe arranged in the feeding detection device is used for pressurizing, the air inlet information is detected through the air pressure sensor, abnormal air inlet is determined when the preset air inlet abnormal condition is set to be 90% of the air inlet pressure, namely the leakage condition exists, and a sound alarm is sent.
205. And if the air pressure in the feeding detection device is safe, the clamping device releases the air pressure in the pipe for the EGR cooler in a pressure relief mode and sends an air-tight safety signal to the automatic sorting device.
This step is the same as step 103 shown in fig. 1, and is not described herein again.
206. When the feeding disc rotates through the first rotating motor to enable the EGR cooler pipe to rotate to the discharging position corresponding to the automatic sorting device, the automatic sorting device discharges the EGR cooler pipe according to the air tightness safety signal and distributes the EGR cooler pipe to the position corresponding to the air tightness qualified product.
This step is the same as step 104 shown in fig. 1, and will not be described herein again.
207. And monitoring the unloading information and the swing information of the automatic sorting device in real time according to the unloading position information and the swing arm position information of the automatic sorting device, and sending second alarm information if preset second abnormal monitoring conditions occur in the unloading information and the swing information.
In the embodiment of the present invention, in order to avoid discharging qualified U-shaped tubes to positions corresponding to unqualified U-shaped tubes, the discharging position information and the swing arm position information are monitored in real time by a position detection device configured in an automatic sorting apparatus, the automatic sorting apparatus includes a second rotating motor and a pneumatic mechanical arm device, the position detection device is a device for detecting a rotating angle of the rotating motor, and a device for detecting a stretching length of the pneumatic mechanical arm, and the embodiment of the present invention is not particularly limited. Wherein, the rotation angle through automatic sorting device can determine the position that qualified U type pipe and unqualified U type pipe were placed respectively, is the information of unloading promptly, and can determine the swing information of arm through the flexible length of pneumatic arm, whether mention U type pipe promptly totally promptly, be swing arm information promptly, including swing front end, swing middle-end, swing end. In the embodiment of the invention, the preset abnormal unloading information is that qualified U-shaped tubes are unloaded to the positions corresponding to unqualified U-shaped tubes, or unqualified U-shaped tubes are unloaded to the positions corresponding to qualified U-shaped tubes, and the preset abnormal swinging information indicates that the swinging length is smaller than the length of the feeding detection device, which indicates that the pneumatic mechanical arm cannot lift all U-shaped tubes in the feeding detection device, so that second alarm information needs to be sent under the second abnormal monitoring condition.
208. The automatic sorting device comprises a flat bar, a dumping device, a feeding disc, a timer, a rotating disc, a third alarm message and a third alarm message.
For the embodiment of the invention, in order to avoid inaccurate unloading and incapability of accurately lifting the U-shaped pipe in the rotation process of the loading disc by the automatic sorting device, the action time of the flat rod, the dumping action time and the full-automatic interval time need to be recorded in real time by a timer installed on the automatic sorting device, the action time of the flat rod is the time for stretching and retracting the mechanical arm, the dumping action time is the time for dumping the lifted U-shaped pipe to the corresponding position, generally, the time from lifting the U-shaped pipe to rotating and then dumping is the time for completing the unloading process, and the full-automatic interval time is the time from the time for rotating the pneumatic mechanical arm to the loading disc direction after the last unloading to the unloading. For the embodiment of the present invention, since the rotation and the unloading of the automatic sorting device need to be within a time interval of one rotation of the loading disc, it needs to be determined whether the flat bar operation time, the dumping operation time, and the full-automatic interval time match with the rotation time interval of the loading disc, for example, whether the sum of the flat bar operation time and the dumping operation time is less than the rotation time interval of the loading disc, and whether the full-automatic interval time is equal to the rotation time interval of the loading disc. If not, then the rotating electrical machines that current controller instructed the material loading disc to correspond stops rotatory material loading disc to send third alarm information, so that the staff detects.
The invention provides another air tightness detection method of an EGR cooler pipe for an automobile, which is characterized in that a clamping device is used for pressing the EGR cooler pipe inserted into a feeding detection device to enable the EGR cooler pipe to be tightly attached to the feeding detection device, then air filling pressure is carried out through an air inlet pipe in the feeding detection device, whether the air pressure in the feeding detection device is safe or not is detected, if the air pressure is safe, the EGR cooler pipes are unloaded to the corresponding positions of the qualified EGR cooler pipes through an automatic sorting device, automatic air tightness detection of the EGR cooler pipes is realized, the extremely small leakage condition is effectively and quickly detected, the phenomenon of artificial missing detection is avoided, the waste of human resources is reduced, and the detection efficiency of the EGR cooler pipe is improved.
Further, as an implementation of the method shown in fig. 1, an embodiment of the present invention provides an air tightness detecting apparatus for a tube for an EGR cooler of an automobile, as shown in fig. 4, the apparatus including: a controller 31, a feeding detection device 32, a clamping device 33, an automatic sorting device 34,
the controller 31 is in data connection with the feeding detection device 32, the clamping device 33 and the automatic sorting device 34, the automatic sorting device 34 is located on one side of a feeding disc, the feeding disc is provided with a plurality of feeding detection devices 32, the feeding disc rotates through a first rotating motor, and the clamping device 33 is fixedly arranged above the feeding disc through a support frame and is perpendicular to the feeding detection devices 32;
the controller 31 is configured to, when a tube for an EGR cooler to be detected is inserted into the feeding detection device 32, enable the tube for the EGR cooler to be tightly attached to the feeding detection device 32 by the clamping device 33 through a pressing manner;
the controller 31 is further configured to fill air pressure into the tube for the EGR cooler through an air inlet tube located below the feeding detection device 32 in the feeding disc, and determine whether the air pressure in the feeding detection device 32 is safe air pressure according to an air pressure sensor located in the feeding detection device 32;
the controller 31 is further configured to release the air pressure in the pipe for the EGR cooler by the clamping device 33 in a pressure relief manner and send an air-tight safety signal to the automatic sorting device 34 if the air pressure in the feeding detection device 32 is a safe air pressure;
the controller 31 is further configured to, when the feeding disc is rotated by the first rotating motor to rotate the tube for the EGR cooler to the unloading position corresponding to the automatic sorting device 34, the automatic sorting device 34 unloads the tube for the EGR cooler according to the airtight safety signal, and distributes the tube for the EGR cooler to the position corresponding to the airtight qualified product.
Further, a sensor for detecting air inlet information and clamping information is installed on the feeding detection device 32, the automatic sorting device 34 includes a second rotating motor and a pneumatic mechanical arm device,
the controller 31 is further configured to monitor air intake information and clamping information in the feeding detection device according to an input use condition of the feeding detection device 32, and send first alarm information if a preset first abnormal monitoring condition occurs in the air intake information, the clamping information, and the press-in information, where the use condition is whether the feeding detection device 32 is stopped being used;
the controller 31 is further configured to monitor the discharging information and the swinging information of the automatic sorting device 34 in real time according to the discharging position information and the swinging arm position information of the automatic sorting device 34, and send second alarm information if preset second abnormal monitoring conditions occur in the discharging information and the swinging information.
Further, the controller 31 is further configured to instruct, according to whether the input feeding detection device 32 stops being used, an indicator light corresponding to the feeding detection device 32 that is available for use to display;
the controller 31 is further specifically configured to, if the feeding detection device 32 is in normal use and a result obtained by analyzing the clamping information is that the EGR cooler pipe is clamped and sealed, obtain intake information obtained by pressurizing the EGR cooler pipe by the feeding detection device 32, monitor whether the intake information is greater than a preset intake abnormal condition, and send first alarm information.
Further, the controller 31 is further configured to obtain, through a timer installed on the automatic sorting device 34, a flat bar action time, a dumping action time, and a full-automatic interval time of the automatic sorting device 34 during unloading, and determine whether the flat bar action time, the dumping action time, and the full-automatic interval time match a rotation time interval of the loading disc, and if not, instruct the loading disc to stop rotating, and send third alarm information.
Further, the tube for the EGR cooler is a U-shaped tube, the feeding detection device 32 is configured with a plurality of circular holes for inserting the two end orifices of the U-shaped tube, the feeding disc rotates counterclockwise by the first rotating motor, and the feeding detection device 32 which completes the insertion of the U-shaped tube is moved to a position corresponding to the clamping device, so that the clamping device sequentially applies pressure to the U-shaped tube which completes the insertion.
The invention provides air tightness detection equipment for an automobile EGR cooler pipe, which is characterized in that a clamping device is used for pressing the EGR cooler pipe inserted into a feeding detection device to enable the EGR cooler pipe to be tightly attached to the feeding detection device, then air filling pressure is carried out through an air inlet pipe in the feeding detection device, whether the air pressure in the feeding detection device is safe or not is detected, if the air pressure is safe, the EGR cooler pipes are unloaded to the positions corresponding to the qualified EGR cooler pipes through an automatic sorting device, automatic air tightness detection of the EGR cooler pipes is realized, the extremely small leakage condition is effectively and quickly detected, the phenomenon of artificial missing detection is avoided, the waste of human resources is reduced, and the detection efficiency of the EGR cooler pipe is improved.
According to an embodiment of the present invention, there is provided a storage medium storing at least one executable instruction, the computer executable instruction being capable of executing the method for detecting airtightness of a tube for an EGR cooler for an automobile in any of the method embodiments described above.
Fig. 5 is a schematic structural diagram of a terminal according to an embodiment of the present invention, and the specific embodiment of the present invention does not limit the specific implementation of the terminal.
As shown in fig. 5, the terminal may include: a processor (processor)502, a Communications Interface 504, a memory 506, and a communication bus 508.
Wherein: the processor 502, communication interface 504, and memory 506 communicate with one another via a communication bus 508.
A communication interface 504 for communicating with network elements of other devices, such as clients or other servers.
The processor 502, configured to execute the program 510, may specifically execute the relevant steps in the embodiment of the method for detecting air tightness of the tube for an EGR cooler of the automobile.
In particular, program 510 may include program code that includes computer operating instructions.
The processor 502 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement an embodiment of the present invention. The terminal comprises one or more processors, which can be the same type of processor, such as one or more CPUs; or may be different types of processors such as one or more CPUs and one or more ASICs.
And a memory 506 for storing a program 510. The memory 506 may comprise high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
The program 510 may specifically be used to cause the processor 502 to perform the following operations:
when the pipe for the EGR cooler to be detected is inserted into the feeding detection device, the clamping device enables the pipe for the EGR cooler to be tightly attached to the feeding detection device in a pressing mode;
filling air pressure into the tube for the EGR cooler through an air inlet tube positioned below the feeding detection device in the feeding disc, and judging whether the air pressure in the feeding detection device is safe or not according to an air pressure sensor positioned in the feeding detection device, wherein the feeding disc is provided with a plurality of feeding detection devices;
if the air pressure in the feeding detection device is safe air pressure, the clamping device releases the air pressure in the pipe for the EGR cooler in a pressure relief mode and sends an air-tight safety signal to the automatic sorting device;
when the feeding disc rotates through the first rotating motor to enable the EGR cooler pipe to rotate to the discharging position corresponding to the automatic sorting device, the automatic sorting device discharges the EGR cooler pipe according to the air tightness safety signal and distributes the EGR cooler pipe to the position corresponding to the air tightness qualified product.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A method for detecting airtightness of a tube for an EGR cooler of an automobile, comprising:
when a pipe for an EGR cooler to be detected is inserted into a feeding detection device, the clamping device enables the pipe for the EGR cooler to be tightly attached to the feeding detection device in a pressing mode, wherein a plurality of round holes for inserting pipe orifices at two ends of the pipe for the EGR cooler are arranged on the feeding detection device;
filling air pressure into the tube for the EGR cooler through an air inlet tube positioned below the feeding detection device in the feeding disc, and judging whether the air pressure in the feeding detection device is safe or not according to an air pressure sensor positioned in the feeding detection device, wherein the feeding disc is provided with a plurality of feeding detection devices;
if the air pressure in the feeding detection device is safe air pressure, the clamping device releases the air pressure in the pipe for the EGR cooler in a pressure relief mode and sends an air-tight safety signal to the automatic sorting device;
when the feeding disc rotates through the first rotating motor, the tubes for the EGR cooler rotate to the discharging position corresponding to the automatic sorting device, the automatic sorting device discharges the tubes for the EGR cooler according to the air tightness safety signal and distributes the tubes to the position corresponding to the air tightness qualified product, wherein the automatic sorting device is positioned on one side of the feeding disc, the automatic sorting device comprises a second rotating motor and pneumatic mechanical arm equipment, the pneumatic mechanical arm equipment is driven to rotate to the position where the feeding detection device is inserted into a U-shaped tube through the rotation of the rotating motor, and the pneumatic mechanical arm equipment extends a mechanical arm to lift a group of U-shaped tubes to realize discharging;
monitoring air inlet information and clamping information in the feeding detection device according to the input using condition of the feeding detection device, and sending first alarm information if a preset first abnormal monitoring condition appears in the air inlet information and the clamping information, wherein the using condition is whether the feeding detection device stops being used or not;
monitoring the unloading information and the swing information of the automatic sorting device in real time according to the unloading position information and the swing arm position information of the automatic sorting device, and sending second alarm information if preset second abnormal monitoring conditions occur in the unloading information and the swing information;
the automatic sorting device comprises a flat bar, a dumping device, a feeding disc, a timer, a rotating disc, a third alarm message and a third alarm message.
2. The method according to claim 1, wherein before the clamping device tightly fits the tube for the EGR cooler to the loading detection device by pressing when the tube for the EGR cooler to be detected is inserted into the loading detection device, the method further comprises:
indicating an indicator lamp corresponding to the feeding detection device which can be used for displaying according to the condition that whether the input feeding detection device stops being used or not;
the method comprises the following steps that air pressure is filled into a pipe for the EGR cooler through an air inlet pipe located below a feeding detection device in a feeding disc, whether the air pressure in the feeding detection device is safe or not is judged according to an air pressure sensor located in the feeding detection device, air inlet information and clamping information in the feeding detection device are monitored according to the input use condition of the feeding detection device, and if the air inlet information and the clamping information are monitored, when a preset first abnormal monitoring condition appears, first alarm information is sent, wherein the first alarm information comprises the following steps:
if the feeding detection device is used normally and the clamping information is analyzed to obtain a result that the clamping is closed, acquiring air inlet information obtained after the feeding detection device pressurizes the tube for the EGR cooler, monitoring whether the air inlet information is larger than a preset air inlet abnormal condition or not, and sending first alarm information.
3. The method according to claim 1 or 2, wherein the tubes for the EGR cooler are U-shaped tubes, the feeding detection device is provided with a plurality of circular holes for inserting the tube openings at two ends of the U-shaped tubes, the feeding disc is rotated counterclockwise by a first rotating motor, and the feeding detection device which completes the insertion of the U-shaped tubes is moved to a position corresponding to the clamping device, so that the clamping device sequentially presses the inserted U-shaped tubes.
4. An airtightness detection apparatus for a tube for an EGR cooler of an automobile, comprising: a controller, a feeding detection device, a clamping device and an automatic sorting device,
the controller is in data connection with the feeding detection device, the clamping device and the automatic sorting device respectively, the automatic sorting device is located on one side of a feeding disc, the feeding disc is provided with a plurality of feeding detection devices, the feeding disc rotates through a first rotating motor, and the clamping device is fixedly arranged above the feeding disc through a support frame and is perpendicular to the feeding detection devices;
the controller is used for enabling the EGR cooler pipe to be tightly attached to the feeding detection device through a pressing mode by the clamping device when the EGR cooler pipe to be detected is inserted into the feeding detection device, wherein a plurality of round holes used for being inserted into pipe orifices at two ends of the EGR cooler pipe are arranged on the feeding detection device;
the controller is also used for filling air pressure into the tube for the EGR cooler through an air inlet tube positioned below the feeding detection device in the feeding disc, and judging whether the air pressure in the feeding detection device is safe air pressure or not according to an air pressure sensor positioned in the feeding detection device;
the controller is further used for releasing the air pressure in the pipe for the EGR cooler by the clamping device in a pressure relief mode and sending an air-tight safety signal to the automatic sorting device if the air pressure in the feeding detection device is safe air pressure;
the controller is further used for unloading the tubes for the EGR cooler according to the airtight safety signal and distributing the tubes for the EGR cooler to a position corresponding to an airtight qualified product when the loading disc rotates through the first rotating motor so that the tubes for the EGR cooler rotate to the unloading position corresponding to the automatic sorting device, wherein the automatic sorting device is located on one side of the loading disc and comprises a second rotating motor and pneumatic mechanical arm equipment, the pneumatic mechanical arm equipment is driven to rotate to the position where the loading detection device is inserted into the U-shaped tubes through rotation of the rotating motor, and the pneumatic mechanical arm equipment extends the mechanical arm to lift a group of U-shaped tubes to achieve unloading;
the feeding detection device is provided with a sensor for detecting air inlet information and clamping information, the automatic sorting device comprises a second rotating motor and pneumatic mechanical arm equipment,
the controller is further configured to monitor air inlet information and clamping information in the feeding detection device according to an input use condition of the feeding detection device, and send first alarm information if a preset first abnormal monitoring condition occurs in the air inlet information and the clamping information, where the use condition is whether the feeding detection device stops being used;
the controller is also used for monitoring the unloading information and the swinging information of the automatic sorting device in real time according to the unloading position information and the swinging arm position information of the automatic sorting device, and sending second alarm information if preset second abnormal monitoring conditions occur in the unloading information and the swinging information; the automatic sorting device comprises a flat bar, a dumping device, a feeding disc, a timer, a rotating disc, a third alarm message and a third alarm message.
5. The apparatus of claim 4,
the controller is also used for indicating an indicator lamp corresponding to the feeding detection device which can be used for displaying according to the condition that whether the input feeding detection device stops being used or not;
the controller is specifically configured to, if the feeding detection device is in normal use and a result obtained by analyzing clamping information is that the feeding detection device is clamped and sealed, obtain air intake information obtained after the feeding detection device pressurizes the pipe for the EGR cooler, monitor whether the air intake information is greater than a preset air intake abnormal condition, and send first alarm information.
6. A storage medium having stored therein at least one executable instruction that causes a processor to execute operations corresponding to the airtightness detection method for a tube for an EGR cooler for an automobile according to any one of claims 1 to 3.
7. A terminal, comprising: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is used for storing at least one executable instruction, and the executable instruction causes the processor to execute the operation corresponding to the air tightness detection method of the tube for the automobile EGR cooler according to any one of claims 1-3.
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| CN201810817950.1A CN109186886B (en) | 2018-07-24 | 2018-07-24 | Method and apparatus for detecting air tightness of tube for EGR cooler of automobile |
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| CN201810817950.1A CN109186886B (en) | 2018-07-24 | 2018-07-24 | Method and apparatus for detecting air tightness of tube for EGR cooler of automobile |
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