Automatic appearance detection platform and method for three-phase electronic prepayment electric energy meter

Abstract

The invention discloses an automatic appearance detection platform and method for a three-phase electronic prepayment electric energy meter, and the platform comprises a guide mechanism, an integrated power communication module, a synchronous belt movement mechanism, a visual module, and a key detection module. The integrated power supply communication module can be driven by the synchronous belt movement mechanism to move to an electric energy meter placing and taking position, a liquid crystal screen and silk-screen detection position and a key detection position in the front-back direction, and the visual module is arranged above the liquid crystal screen and silk-screen detection position. The key detection module is arranged at a position above the key detection position; the integrated power supply communication module is also provided with a power supply plug automatic plugging module used for automatically plugging a power supply plug into a power supply interface of the electric energy meter, and a communication probe automatic plugging module used for automatically plugging a customized communication probe into a communication interface of the electric energy meter. According to the invention, the safety, accuracy and efficiency of appearance detection of the electric energy meter are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy meter detection, and in particular to an automatic appearance detection platform and method for a three-phase electronic prepaid electric energy meter. Background Art

[0002] The three-phase electronic prepaid energy meter is an intelligent monitoring device involved in important occasions such as construction, industry, agriculture, and service industries. It plays the role of monitoring different signals, such as current, voltage, active energy, reactive energy, etc. When the energy meter leaves the factory, it must first undergo an appearance inspection (whether the LCD display is normal; whether the laser screen printing is correct and complete; whether the buttons are correctly installed and function normally). The current traditional method is: 1. Workers manually connect the auxiliary power supply and communication of the electric energy meter. The connection method is to loosen the A-phase and N-phase clamping screws of the electric energy meter power supply with a screwdriver, insert the corresponding auxiliary power banana plug into the A-phase and N-phase and tighten them; loosen the clamping screw of the electric energy meter communication terminal, insert the corresponding communication positive and negative terminal pins into the communication terminal of the electric energy meter and tighten them.

[0003] 2. Turn on the auxiliary power supply to connect the energy meter to 220V AC voltage, and the LCD display interface of the energy meter will light up.

[0004] 3. Visually check the laser screen printing of the electricity meter to see if it is complete and correct; visually check if the buttons are installed correctly; manually press each button to visually check if the LCD displays the corresponding function (such as turning pages, returning, entering a menu bar, confirming, etc.) according to the button pressing situation; at the same time, visually check the LCD display to see if there is any leakage, missing pen, extra pen, etc.

[0005] This manual appearance inspection method is cumbersome and inefficient. Workers' long-term visual inspection and button pressing will cause visual and tactile fatigue, leading to false inspections, missed inspections, and confusion between qualified and unqualified products, causing quality risks. At the same time, workers manually plugging and unplugging the 220V AC auxiliary power supply will also be at risk of electric shock, posing a safety hazard. Summary of the invention

[0006] In order to solve the above problems, the present invention proposes an automatic detection platform and method for the appearance of a three-phase electronic prepaid energy meter, aiming to realize automatic detection of the appearance (LCD screen, silk screen, buttons) of a three-phase electronic prepaid energy meter and improve the safety, accuracy and efficiency of the detection. The specific technical solution is as follows: A three-phase electronic prepaid energy meter appearance automatic detection platform, comprising a guide mechanism, an integrated power supply communication module movably arranged on the guide mechanism, a synchronous belt motion mechanism for driving the integrated power supply communication module to move in the front-rear direction, an energy meter locator arranged on the integrated power supply communication module for placing and positioning the three-phase electronic prepaid energy meter, a visual module for detecting whether the silk-screen text on the three-phase electronic prepaid energy meter is normal and whether the liquid crystal display is normal, and a key detection module for detecting whether the keys on the three-phase electronic prepaid energy meter are normal. The integrated power supply communication module can be moved in the front-to-back direction to the electric energy meter placement and picking position, the LCD screen and silk screen detection position, and the button detection position respectively through the drive of the synchronous belt motion mechanism. The visual module is arranged above the LCD screen and silk screen detection position, and the button detection module is arranged above the button detection position; wherein, the integrated power supply communication module is also respectively provided with a power plug automatic plug-in module for automatically plugging the power supply plug into the power interface of the electric energy meter, and a communication probe automatic plug-in module for automatically plugging the customized communication probe into the communication interface of the electric energy meter.

[0007] Preferably, an automatic appearance inspection platform for a three-phase electronic prepaid electricity meter of the present invention also includes a large base plate and a gantry arranged on the large base plate, the guide mechanism and the synchronous belt motion mechanism are respectively arranged on the large base plate, the gantry is arranged across the left and right directions above the integrated power supply communication module, the visual module is arranged on the top crossbeam of the gantry, and an intermediate crossbeam is also arranged on the gantry below the top crossbeam, and the key detection module is arranged on the intermediate crossbeam.

[0008] Preferably, the guide mechanism includes a pair of linear guides arranged on the large base plate in parallel and spaced apart in the front-to-back direction, and a slider movably arranged on the linear guides; the integrated power supply communication module includes a double-layer rack movably arranged on the guide mechanism in the front-to-back direction, the double-layer rack includes an upper plate, a lower plate and a number of optical axes connected between the upper plate and the lower plate, the lower plate of the double-layer rack is fixedly connected to the slider, and the electric energy meter locator includes a pair of limit blocks arranged on the upper plate of the double-layer rack and disposed on the left and right sides of the upper plate, and an electric energy meter positioning groove arranged on the limit block for placing and positioning the electric energy meter.

[0009] Preferably, the power plug automatic plug-in module includes a first double-rod sliding cylinder fixedly arranged on the lower plate of the double-layer rack, a power plug mounting plate arranged at the front end of the piston rod of the first double-rod sliding cylinder and located at the front end of the double-layer rack in an upright state, a pair of customized power copper sheets rotatably arranged on the power plug mounting plate through a rotating shaft pin and pointing in the direction of the electric energy meter locator, a first spring connected between the power plug mounting plate and the customized power copper sheet for rotating the rod body of the plug-in part of the customized power copper sheet around the rotating shaft pin to an upwardly lifted state, a double-rod cylinder arranged on the power plug mounting plate, and a lifting block arranged on the piston rod of the double-rod cylinder for pressing the customized power copper sheet so that the rod body of the plug-in part of the customized power copper sheet overcomes the elastic force of the first spring and rotates around the rotating shaft pin to a horizontal plug-in state.

[0010] Preferably, the communication probe automatic plug-in module includes a second double-rod slide cylinder fixedly arranged on the lower plate of the double-layer rack, a probe mounting plate arranged at the front end of the piston rod of the second double-rod slide cylinder and located in an upright state at the rear end of the double-layer rack, a probe mounting seat block arranged on the probe mounting plate, a pair of customized communication probes arranged on the probe mounting seat block and pointing to the direction of the electric energy meter locator for movement along the front-to-back direction, a probe needle head arranged at the front end of the customized communication probe for plugging and connecting with the communication interface of the electric energy meter, a section of thickened cone arranged at the rear end of the probe needle head, a section of guide cylinder arranged at the rear end of the thickened cone, a limit rod arranged at the rear end of the thickened cone, a second spring sleeved on the limit rod, a cover plate is arranged at the rear end of the probe mounting seat block, the customized communication probe is moved along the front-to-back direction on the guide hole of the probe mounting seat block through the guide cylinder, and the limit rod on the customized communication probe is connected to a fixing ring after passing through the cover plate.

[0011] In the present invention, after the probe needle of the customized communication probe is inserted into the communication interface of the electric energy meter, it contacts the elastic sheet inside the communication interface of the electric energy meter. The thickened cone of the customized communication probe is elastically pressed against the mouth of the communication interface of the electric energy meter by the second spring, thereby realizing conductive connection.

[0012] In the present invention, three U-shaped photoelectric sensors for accurately locating the position of the integrated power communication module are arranged on the large base plate, which are respectively used to detect and locate the placement and removal position of the electric energy meter, the LCD screen and silk screen detection position and the button detection position.

[0013] In the present invention, the synchronous belt movement mechanism includes a pair of fixed plates arranged on the large base plate, a driving wheel and an idler wheel respectively arranged on the pair of fixed plates for rotation, a stepper motor arranged on the fixed plates for driving the driving wheel to rotate, and a synchronous belt connected between the driving wheel and the idler wheel. A connecting block is provided on one side of the slider, and the synchronous belt is fixed to the connecting block on the slider through a synchronous belt pressure plate.

[0014] Preferably, the button detection module includes a mounting plate arranged on the middle cross beam, a number of pen-shaped cylinders arranged on the mounting plate of the middle cross beam, the piston rod of the pen-shaped cylinder is arranged downward, and the lower end of the piston rod of the pen-shaped cylinder is provided with a customized special-shaped pressure block for pressing the button on the electric energy meter.

[0015] Preferably, the visual module includes a mounting plate arranged on the top crossbeam, a camera arranged on the mounting plate of the top crossbeam, a light source bracket arranged on the mounting plate of the top crossbeam, and a light source arranged on the light source bracket and located outside the camera.

[0016] In the present invention, the first double-rod slide cylinder, the second double-rod slide cylinder, the double-rod cylinder and the pen-shaped cylinder are controlled by a PLC controller.

[0017] In the present invention, the PLC controller is connected to a host computer.

[0018] As a further improvement, a three-phase electronic prepaid electricity meter appearance automatic detection platform of the present invention is also provided with an anti-magnetic interference detection device for expanding the function of the detection platform, the anti-magnetic interference detection device includes an annular electromagnet horizontally arranged on the light source bracket and located at the periphery of the light source, and a number of Hall elements arranged on the integrated power supply communication module and arranged around the electricity meter and close to the electricity meter. The annular electromagnet is a power-adjustable variable magnetic field strength annular electromagnet, and the magnetic field strength adjustment control module and the Hall element of the variable magnetic field strength annular electromagnet are respectively connected to the PL controller.

[0019] A detection method for an automatic detection platform for the appearance of a three-phase electronic prepaid energy meter, characterized in that it comprises the following steps: (1) Preparation: Control the synchronous belt motion mechanism through the PLC controller to move the integrated power supply communication module to the placement and retrieval position of the electric energy meter; control the piston rod of the double-rod cylinder through the PLC controller so that the lifting block at the front end of the piston rod of the double-rod cylinder pushes the customized power supply copper sheet to a horizontal plug-in state; (2) Electricity meter placement: The operator or a manipulator installed next to the three-phase electronic prepaid energy meter appearance automatic inspection platform places the energy meter in the energy meter positioning slot of the integrated power supply communication module; (3) Automatic plug-in: The PLC controller controls the movement of the first double-rod slide cylinder and the second double-rod slide cylinder, so that the rod body of the plug-in part of the customized power copper sheet on the power plug automatic plug-in module is inserted into the power interface of the electric energy meter, and at the same time, the customized communication probe on the communication probe automatic plug-in module is plugged into the communication interface of the electric energy meter; wherein, after the rod body of the plug-in part of the customized power copper sheet is inserted into the power interface of the electric energy meter, the PLC controller controls the movement of the piston rod of the double-rod cylinder, so that the lifting block at the front end of the piston rod of the double-rod cylinder is out of contact with the customized power copper sheet, and under the pulling action of the first spring, the rod body of the plug-in part of the customized power copper sheet is lifted up, thereby achieving reliable conductive contact with the power interface of the electric energy meter; (4) LCD screen and silk screen inspection: The electric energy meter is powered on and connected to the communication, the synchronous belt motion mechanism is controlled by the PLC controller, the integrated power supply communication module is moved to the LCD screen and silk screen inspection position, and the LCD screen and silk screen are inspected by the visual module; (5) Key detection: The PLC controller controls the movement of the synchronous belt motion mechanism, moves the integrated power supply communication module to the key detection position, and the pen-shaped cylinder on the key detection module moves in sequence. The customized special-shaped pressure block at the front end of the piston rod of the pen-shaped cylinder presses the key, and the electric energy meter gives corresponding feedback. The visual module and the upper computer software are then used for recognition to determine whether the key is good or bad, and the key detection is completed; As a further improvement of the present invention, after the steps (1) to (5) are completed, the anti-magnetic interference detection device is also turned on to make the annular electromagnet generate an interference magnetic field, and the magnetic field strength near the electric energy meter is detected by the Hall element arranged around the electric energy meter. The PLC controller adjusts the magnetic field strength of the annular electromagnet to a set value through the magnetic field strength adjustment control module according to the magnetic field strength data near the electric energy meter detected by the Hall element; then, steps (4) to (5) are repeated to realize LCD screen detection and key detection under the action of the interference magnetic field.

[0020] The beneficial effects of the present invention are: First, the present invention provides a three-phase electronic prepaid energy meter appearance automatic detection platform and method, which adopts an innovative platform design structure, and utilizes a stepper motor and synchronous wheel and synchronous belt motion combination, a guide mechanism combination, an integrated power supply communication module combination, a pen-shaped cylinder combination and a visual camera combination to realize automatic detection of the appearance (liquid crystal, silk screen, buttons) of the three-phase electronic prepaid energy meter, thereby improving safety, accuracy and efficiency.

[0021] Secondly, the three-phase electronic prepaid energy meter appearance automatic inspection platform and method of the present invention solves the safety issues involved in the conventional manual operation of plugging and unplugging the 220V auxiliary power supply for the energy meter, and also solves the tedious and fatigue-prone problems of operators visually looking at the LCD display for a long time and repeatedly pressing buttons.

[0022] Third, the present invention provides a three-phase electronic prepaid electricity meter appearance automatic detection platform and method, which is equipped with an anti-magnetic interference detection device, and can realize the automatic detection of the electricity meter appearance under the set interference magnetic field strength. The anti-magnetic interference detection device cooperates with the key detection module and the visual module, and cooperates with the analysis and judgment of the upper computer software to comprehensively detect whether the performance of the electricity meter under external magnetic field interference meets the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an automatic appearance detection platform for a three-phase electronic prepaid energy meter according to the present invention; Figure 2 yes Figure 1 Structural diagram of the synchronous belt motion mechanism and guide mechanism; Figure 3 yes Figure 1 A schematic diagram of the structure of the integrated power supply communication module; Figure 4 Yes Figure 3 Schematic diagram of the structure after the integrated power communication module is turned around; Figure 5 yes Figure 1 A schematic diagram of the structure of a double-layer rack in the integrated power supply communication module; Figure 6 yes Figure 1 A schematic diagram of the structure of the power plug automatic plug-in module in the integrated power communication module; Figure 7 Figure 6 A schematic diagram of the structure of the customized power copper sheet part involved in the power plug automatic plug-in module; Figure 8 yes Figure 1 A schematic diagram of the structure of the communication probe automatic plug-in module in the integrated power communication module; Fig. 9 yes Figure 8 A schematic diagram of the structure of the communication probe part involved in the communication probe automatic plug-in module; Fig.10 yes Figure 1 A schematic diagram of the structure of a key detection module in an integrated power communication module; Fig.11 yes Figure 1A schematic diagram of the structure of the visual module in the integrated power communication module; Fig.12 yes Figure 1 A schematic diagram of the structure when the integrated power supply communication module is moved to the position where the electric energy meter is placed and taken; Fig.13 yes Figure 1 The structural diagram of the integrated power communication module when it is moved to the LCD screen and silk screen detection position; Fig.14 yes Figure 1 A schematic diagram of the structure when the integrated power communication module is moved to the key detection position; Figure 15-16 is Figure 1 A structural schematic diagram of a three-phase electronic prepaid electricity meter appearance automatic detection platform in which a variable magnetic field strength ring electromagnet and a Hall element are added to expand the function of the detection platform.

[0024] In the figure: 1. synchronous belt motion mechanism, 2. guide mechanism, 3. integrated power supply communication module, 4. button detection module, 5. visual module, 6. limit block, 7. driving wheel, 8. fixed plate, 9. stepper motor, 10. synchronous belt, 11. synchronous belt pressure plate, 12. connecting block, 13. fixed plate, 14. idler wheel, 15. linear guide rail, 16. slider, 17. U-shaped sensor, 18. large bottom plate, 19. power plug automatic plug-in module, 20. communication probe automatic plug-in module, 21. Lower plate, 22. Upper plate, 23. Limit block, 24. Optical axis, 25. Double-rod cylinder, 26. Lifting block, 27. Auxiliary guide plate, 28. Power plug mounting plate, 29. Pressure block, 30. First double-rod slide cylinder, 31. First spring, 32. Customized power copper sheet, 33. Small pressure plate, 34. Rotating shaft pin, 35. Second double-rod slide cylinder, 36. Customized communication probe, 37. Second spring, 38. Fixed ring, 39. Customized special-shaped pressure block, 40. Mounting plate, 41. Mounting plate, 42. Pen-shaped cylinder, 43. Top beam, 44. Mounting plate, 45. Mounting plate, 46. Camera, 47. Light source bracket, 48. Light source, 49. Probe mounting plate, 50. Probe mounting seat block, 51. Cover plate, 52. Variable magnetic field strength annular electromagnet, 53. Hall element.

[0025] In the picture: A, button, B, laser screen printing, C, LCD screen, D, electric energy meter. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention. Embodiment 1:

[0027] like Figures 1 to 16 The figure shows an embodiment of an automatic appearance inspection platform for a three-phase electronic prepaid energy meter of the present invention, comprising a guide mechanism 2, an integrated power supply communication module 3 movably arranged on the guide mechanism 2, a synchronous belt motion mechanism 1 for driving the integrated power supply communication module 3 to move in the front-rear direction, an energy meter locator arranged on the integrated power supply communication module 3 for placing and positioning the three-phase electronic prepaid energy meter, a visual module 5 for detecting whether the silk-screen text on the three-phase electronic prepaid energy meter is normal and whether the LCD display is normal, and a key detection module 4 for detecting whether the keys on the three-phase electronic prepaid energy meter are normal. The integrated power communication module 3 can be moved in the front-to-back direction to the electric energy meter placement and picking position, the LCD screen and silk screen detection position, and the button detection position respectively through the drive of the synchronous belt motion mechanism 1. The visual module 5 is arranged above the LCD screen and silk screen detection position, and the button detection module 4 is arranged above the button detection position; wherein, the integrated power communication module 3 is also respectively provided with a power plug automatic plug-in module 19 for automatically plugging the power supply plug (customized power copper sheet 32) into the power interface of the electric energy meter, and a communication probe automatic plug-in module 20 for automatically plugging the customized communication probe 36 into the communication interface of the electric energy meter.

[0028] Preferably, a three-phase electronic prepaid electricity meter appearance automatic inspection platform of the present invention also includes a large base plate 18 and a gantry arranged on the large base plate 18, the guide mechanism 2 and the synchronous belt motion mechanism 1 are respectively arranged on the large base plate 18, the gantry is arranged across the upper position of the integrated power supply communication module 3 in the left and right directions, the visual module 5 is arranged on the top crossbeam 43 of the gantry, and an intermediate crossbeam is also arranged on the gantry below the top crossbeam 43, and the key detection module 4 is arranged on the intermediate crossbeam.

[0029] Preferably, the guide mechanism 2 includes a pair of linear guide rails 15 arranged in parallel and spaced apart along the front-to-back direction on the large base plate 18, and a slider 16 movably arranged on the linear guide rails 15; the integrated power supply communication module 3 includes a double-layer rack movably arranged on the guide mechanism 2 along the front-to-back direction, the double-layer rack includes an upper plate 21, a lower plate 22 and a number of optical axes 24 connected between the upper plate 21 and the lower plate 22, the lower plate 21 of the double-layer rack is fixedly connected to the slider 16, and the electric energy meter locator includes a pair of limit blocks 23 arranged on the upper plate 22 of the double-layer rack and disposed on the left and right sides of the upper plate 22, and an electric energy meter positioning groove arranged on the limit block 23 for placing and positioning the electric energy meter.

[0030] Preferably, the power plug automatic plug-in module 19 includes a first double-rod slide cylinder 30 fixedly set on the lower plate 21 of the double-layer rack, a power plug mounting plate 28 arranged at the front end of the piston rod of the first double-rod slide cylinder 30 and located at the front end of the double-layer rack in an upright state, a pair of customized power copper sheets 32 rotatably set on the power plug mounting plate 28 through a rotating shaft pin 34 and pointing in the direction of the electric energy meter locator, a first spring 31 connected between the power plug mounting plate 28 and the customized power copper sheet 32 ​​for rotating the rod body of the plug-in part of the customized power copper sheet 32 ​​around the rotating shaft pin 34 to an upwardly lifted state, a double-rod cylinder 25 arranged on the power plug mounting plate 28, and a lifting block 26 arranged on the piston rod of the double-rod cylinder 25 for pressing the customized power copper sheet 32 ​​so that the rod body of the plug-in part of the customized power copper sheet 32 ​​overcomes the elastic force of the first spring 31 and rotates around the rotating shaft pin 34 to a horizontal plug-in state.

[0031] Preferably, the communication probe automatic plug-in module 20 includes a second double-rod slide cylinder 35 fixedly arranged on the lower plate 21 of the double-layer rack, a probe mounting plate 49 arranged at the front end of the piston rod of the second double-rod slide cylinder 35 and located at the rear end of the double-layer rack in an upright state, a probe mounting seat block 50 arranged on the probe mounting plate 49, a pair of customized communication probes 36 arranged on the probe mounting seat block 50 and pointing to the direction of the electric energy meter locator in the forward and backward directions, and a probe mounting seat block 50 arranged at the front end of the customized communication probe 36 for communicating with the electric energy meter. A probe needle for plug-in connection is realized through a communication interface, a thickened cone is arranged at the rear end of the probe needle, a guide cylinder is arranged at the rear end of the thickened cone, a limit rod is arranged at the rear end of the thickened cone, and a second spring 37 is sleeved on the limit rod. A cover plate 51 is arranged at the rear end of the probe mounting seat block 50, and the customized communication probe 36 is moved along the front and rear direction through the guide cylinder and arranged on the guide hole of the probe mounting seat block 50. The limit rod on the customized communication probe 36 passes through the cover plate 51 and is connected to a fixing ring 38.

[0032] In the present invention, after the probe needle of the customized communication probe 36 is inserted into the communication interface of the electric energy meter, it contacts the elastic sheet inside the communication interface of the electric energy meter. The thickened cone of the customized communication probe 36 is elastically pressed against the mouth of the communication interface of the electric energy meter by the second spring 37, thereby realizing conductive connection.

[0033] In the present invention, three U-shaped photoelectric sensors 17 for accurately locating the position of the integrated power communication module 3 are arranged on the large base plate 18, which are respectively used to detect and locate the placement and removal position of the electric energy meter, the LCD screen and silk screen detection position and the button detection position.

[0034] In the present invention, the synchronous belt motion mechanism 1 includes a pair of fixed plates 8 arranged on the large base plate 18, a driving wheel 7 and an idler wheel 14 respectively arranged on the pair of fixed plates 8 for rotation, a stepper motor 9 arranged on the fixed plate 8 for driving the driving wheel 7 to rotate, and a synchronous belt 10 connected between the driving wheel 7 and the idler wheel 14. A connecting block 12 is provided on one side of the slider 16, and the synchronous belt 10 is fixed to the connecting block 12 on the slider 16 through a synchronous belt pressure plate 11.

[0035] Preferably, the button detection module 4 includes a mounting plate 40 / 41 arranged on the middle cross beam, and a number of pen-shaped cylinders 42 arranged on the mounting plate 41 of the middle cross beam, the piston rod of the pen-shaped cylinder 42 is arranged downward, and the lower end of the piston rod of the pen-shaped cylinder 42 is provided with a customized special-shaped pressure block 39 for pressing the button on the electric energy meter.

[0036] Preferably, the visual module 5 includes a mounting plate 44 / 45 arranged on the top beam 43, a camera 46 arranged on the mounting plate 45 of the top beam 43, a light source bracket 47 arranged on the mounting plate 45 of the top beam 43, and a light source 48 arranged on the light source bracket 47 and located outside the camera 46.

[0037] In the present invention, the first double-rod slide cylinder 30, the second double-rod slide cylinder 35, the double-rod cylinder 25 and the pen-shaped cylinder 42 are controlled by a PLC controller.

[0038] In the present invention, the PLC controller is connected to a host computer.

[0039] As a further improvement, a three-phase electronic prepaid electricity meter appearance automatic detection platform of the present invention is also provided with an anti-magnetic interference detection device for expanding the function of the detection platform, the anti-magnetic interference detection device includes an annular electromagnet 52 horizontally arranged on the light source bracket 47 and located at the periphery of the light source 48, and a number of Hall elements 53 arranged on the integrated power supply communication module 3 and arranged around the electricity meter and close to the electricity meter. The annular electromagnet 52 is a power-adjustable variable magnetic field strength annular electromagnet 52, and the magnetic field strength adjustment control module and the Hall element 53 of the variable magnetic field strength annular electromagnet 52 are respectively connected to the PL controller. Embodiment 2:

[0040] A detection method for an automatic detection platform for the appearance of a three-phase electronic prepaid energy meter, characterized in that it comprises the following steps: (1) Preparation: The PLC controller controls the synchronous belt motion mechanism 1 to move the integrated power communication module 3 to the placement and removal position of the electric energy meter; the PLC controller controls the piston rod of the double-rod cylinder 25 to move so that the lifting block 26 at the front end of the piston rod of the double-rod cylinder 25 pushes the customized power copper sheet 32 ​​to a horizontal plug-in state; (2) Electricity meter placement: The operator or a manipulator installed next to the three-phase electronic prepaid energy meter appearance automatic inspection platform places the energy meter in the energy meter positioning slot of the integrated power supply communication module 3; (3) Automatic plug-in: The first double-rod slide cylinder 30 and the second double-rod slide cylinder 35 are controlled by the PLC controller to move, so that the plug-in part of the customized power copper sheet 32 ​​on the power plug automatic plug-in module 19 is inserted into the power interface of the electric energy meter, and at the same time, the customized communication probe 36 on the communication probe automatic plug-in module 20 is plugged into the communication interface of the electric energy meter; wherein, after the plug-in part of the customized power copper sheet 32 ​​is inserted into the power interface of the electric energy meter, the PLC controller controls the piston rod of the double-rod cylinder 25 to move, so that the lifting block 26 at the front end of the piston rod of the double-rod cylinder 25 is out of contact with the customized power copper sheet 32, and under the pulling action of the first spring 31, the plug-in part of the customized power copper sheet 32 ​​is lifted up, thereby achieving reliable conductive contact with the power interface of the electric energy meter; (4) LCD screen and silk screen inspection: The electric energy meter is powered on and connected to the communication, and the synchronous belt motion mechanism 1 is controlled by the PLC controller to move the integrated power supply communication module 3 to the LCD screen and silk screen inspection position, and the LCD screen and silk screen are inspected by the visual module 5; (5) Key detection: The PLC controller controls the synchronous belt motion mechanism 1 to move the integrated power communication module 3 to the key detection position. The pen-shaped cylinder 42 on the key detection module moves in sequence. The customized special-shaped pressing block 39 at the front end of the piston rod of the pen-shaped cylinder 42 presses the key. The electric energy meter gives corresponding feedback. The visual module 5 and the upper computer software recognize the key to judge whether it is good or bad, and complete the key detection. As a further improvement of the present invention, after the steps (1) to (5) are completed, the anti-magnetic interference detection device is also turned on to make the annular electromagnet 52 generate an interference magnetic field, and the magnetic field strength near the electric energy meter is detected by the Hall element 53 arranged around the electric energy meter. The PLC controller adjusts the magnetic field strength of the annular electromagnet 52 to a set value through the magnetic field strength adjustment control module according to the magnetic field strength data near the electric energy meter detected by the Hall element 53; then, steps (4) to (5) are repeated to realize LCD screen detection and key detection under the action of the interference magnetic field. Embodiment 3:

[0041] Next, the drawings of Example 1 are further described.

[0042] Figure 1 This is an overall diagram of a three-phase electronic prepaid energy meter appearance automatic detection platform of the present invention. Synchronous belt motion mechanism 1 (for specific structure, see Figure 2 ) is controlled by PLC as a whole, the driving wheel 7 and the idler wheel 14 are connected by the synchronous belt 10 and driven by the stepper motor 9; the stepper motor 9 is installed on the fixed plate 8, and the synchronous wheel idler wheel 14 is installed on the fixed plate 13. The fixed plate 8 and the fixed plate 13 are positioned by positioning pins and locked on the large bottom plate 18 by screws to ensure parallelism; the synchronous belt pressure plate 11 and the connecting block 12 fix the synchronous belt 10 and the integrated power supply communication module 3 as a whole by screws so that the synchronous belt 10 drives the integrated power supply communication module 3 to move together; the three U-shaped sensors 17 are respectively the left and right limit positions and the zero position. In order to ensure the accuracy of the stepper motor, the stepper motor will be reset to the zero position every time it is placed / taken; the guide mechanism 2 (see the specific structure) Figure 2 ), the linear guide 15 and the slider 16 are combined to guide and carry the integrated power communication module 3; the integrated power communication module 3 is fixed to the slider 16 of the guide mechanism 2 by screws; limit blocks 6 are installed at both ends of the linear guide 15 to play the role of hard limit and buffer; through the mutual cooperation of the synchronous belt motion mechanism 1 and the guide mechanism 2, the integrated power communication module 3 can accurately stay in three positions (see Figure 12-14 ).

[0043] Integrated power communication module 3 (for specific structure, see Figure 3 ) is generally composed of three parts, namely: the power plug automatic plug-in module part 19 (the specific structure is shown in Figure 6 and Figure 7 )、Communication probe automatic plug-in module part 20 (for specific structure, see Figure 8 and Fig. 9 ), the double-layer frame part composed of the upper plate 22, the lower plate 21 and the optical axis 24 (see the specific structure for details) Figure 5). In the default original ventilation state, the double-rod slide cylinder 30 / 35 is in the retracted state, the double-rod cylinder 25 is in the extended state, and a lifting block 26 is installed at the end of the double-rod cylinder 25, and the lifting block 26 lifts the customized power supply copper sheet 32 ​​to a horizontal state. First, the electric energy meter is placed in the limit block 23 at the placement / removal position. After the electric energy meter is placed, the solenoid valve of the double-rod slide cylinder 30 / 35 is controlled to actuate, the ventilation state is changed, and the double-rod slide cylinder 30 / 35 is changed to an extended state, driving the power plug automatic plug-in module 19 and the communication probe automatic plug-in module 20 to be pushed out as a whole, so that the customized communication probe 36 and the customized power copper sheet 32 ​​are inserted into the power and communication terminal slot of the electric energy meter. At this time, the customized communication probe 36 has contacted the copper piece of the communication terminal of the electric energy meter, and the communication becomes connected; then another group of solenoid valves controlling the double-rod cylinder 25 are actuated, the double-rod cylinder 25 is changed to a retracted state, the lifting block 26 is separated from the customized power copper sheet 32, and the customized power copper sheet 32 ​​is changed to an upward state under the pulling force of the first spring 31, so that the customized power copper sheet 32 ​​is in contact with the copper pieces of the A-phase and N-phase terminals of the electric energy meter, and the power is turned on; the customized power copper sheet 32 ​​is installed with a rotating shaft pin 34, which is fixed to the power plug mounting plate 28 by a small pressure plate 33. The power communication module 3 has a pressure block 29 installed on both the communication side and the power side, which serves as the upper and lower limit of the electric energy meter. Fig. 9 ) A second spring 37 is used to produce elastic expansion and contraction, and a fixing ring 38 is installed at the tail to prevent the probe from falling off.

[0044] After the customized communication probe 36 and the customized power copper sheet 32 ​​are in contact with the electric energy meter, the electric energy meter is powered on and connected to the communication, and the LCD screen lights up and displays the rotation; the power communication module 3 is driven by the synchronous belt motion mechanism 1 and moves to the LCD screen and silk screen detection position ( Fig.13 ), to detect the LCD screen and silk screen; the entire detection process is completed by the camera 46 and the light source 48 in conjunction with the host computer software; the camera 46 and the light source 48 can be adjusted in position by the mounting plate 44 / 45 set on the top beam 43; after the LCD screen and silk screen detection are completed, the power communication module 3 runs to the key detection position ( Fig.14 ), key detection bit (for specific structure, see Fig.10 ) on the pen-shaped cylinder 42 is ventilated and extended in turn, and the piston rod end of the pen-shaped cylinder is customized with a special-shaped pressure block 39 to press the button, and the electric energy meter gives corresponding feedback, which is then identified by the upper computer software to judge whether the button is good or bad; the pen-shaped cylinder 42 can be adjusted in position by the mounting plate 40 / 41 set on the middle beam.

[0045] After the appearance (LCD, silk screen, buttons) is fully automatically inspected, the power communication module 3 will return to the placement / removal position ( Fig.12 ), the energy meter can be removed.

[0046] The double-rod cylinder 25 controls the angle of the customized power copper sheet 32 ​​(horizontal and upward, completed together with the spring); the double-rod slide cylinders 30 and 35 control the extension and retraction of the customized communication probe and the customized power copper sheet; the limit block 23 is responsible for the center positioning of the electric energy meter, so that the customized communication probe 36 and the customized power copper sheet 32 ​​can contact the electric energy meter terminal (plug interface) smoothly.

[0047] The key detection module of the appearance inspection automation platform includes a mounting plate 40 / 41 and a pen-shaped cylinder 42. The mounting plate 40 / 41 is divided into two independent pieces, each of which has a waist-shaped hole to achieve adjustment in two directions, and the combination can achieve four-way adjustment in front, back, left, and right directions; the piston rod end of the pen-shaped cylinder 42 is installed with a customized special-shaped pressure block 39, which is responsible for pressing the key.

[0048] The visual module of the appearance inspection automation platform includes a camera 46 and a flexible light source 48, which can realize accurate inspection of LCD display, silk screen and buttons.

[0049] Preferably, the linear guide 15 is a Hiwin HGR15 linear guide, and the slider 16 is a HGH15CA slider.

[0050] Preferably, the optical axis 24 needs to be surface-high frequency quenched, with a hardness of HRC58-60, and chrome-plated.

[0051] Preferably, the synchronous wheels (driving wheel 7 and idler wheel 14) are 3M25 synchronous gears, and the synchronous belt is 3M synchronous belt.

[0052] Preferably, the double-rod cylinder 25 selects the TN16-10 double-rod cylinder, the double-rod slide cylinder 30 / 35 selects the MXQ16-30 double-rod slide cylinder, and the pen-shaped cylinder 42 selects the PSB6-15SR pen-shaped cylinder.

[0053] Preferably, the stepper motor 9 is a Reisai 57CM23 stepper motor.

[0054] Preferably, the PLC controller adopts Xinjie PLC controller.

[0055] Preferably, all aluminum panels are sandblasted and natural anodized.

[0056] As a preference, all bakelite boards are black insulating bakelite boards.

[0057] As a preference, all stainless steel sheet metals are made of SUS304 stainless steel.

[0058] Preferably, the visual camera 46 adopts a Daheng image industrial camera, and the light source 48 adopts a diffuse reflection flexible light source.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A three-phase electronic prepaid energy meter appearance automatic detection platform, characterized in that: The invention comprises a guide mechanism, an integrated power communication module movably arranged on the guide mechanism, a synchronous belt motion mechanism for driving the integrated power communication module to move in the front-to-back direction, an electric energy meter locator arranged on the integrated power communication module for placing and positioning a three-phase electronic prepaid electric energy meter, a visual module for detecting whether the silk-screen text on the three-phase electronic prepaid electric energy meter is normal and whether the LCD display is normal, and a key detection module for detecting whether the keys on the three-phase electronic prepaid electric energy meter are normal. The integrated power communication module can be moved in the front-to-back direction to the electric energy meter placement and taking position, the LCD and silk-screen detection position, and the key detection position respectively through the driving of the synchronous belt motion mechanism. The visual module is arranged above the LCD and silk-screen detection position, and the key detection module is arranged above the key detection position. The integrated power communication module is also provided with a power plug automatic plug-in module for automatically plugging the power supply plug into the power interface of the electric energy meter and a communication probe automatic plug-in module for automatically plugging the customized communication probe into the communication interface of the electric energy meter.

2. The three-phase electronic prepaid energy meter appearance automatic detection platform according to claim 1 is characterized in that: It also includes a large base plate and a gantry arranged on the large base plate, the guide mechanism and the synchronous belt movement mechanism are respectively arranged on the large base plate, the gantry is arranged across the left and right directions above the integrated power supply communication module, the visual module is arranged on the top beam of the gantry, and an intermediate beam is also arranged on the gantry below the top beam, and the key detection module is arranged on the intermediate beam.

3. The three-phase electronic prepaid energy meter appearance automatic detection platform according to claim 1 is characterized in that: The guide mechanism includes a pair of linear guide rails arranged in parallel and spaced apart along the front-to-back direction on the large base plate, and a slider movably arranged on the linear guide rails; the integrated power supply communication module includes a double-layer rack movably arranged on the guide mechanism along the front-to-back direction, the double-layer rack includes an upper plate, a lower plate and a number of optical axes connected between the upper plate and the lower plate, the lower plate of the double-layer rack is fixedly connected to the slider, and the electric energy meter positioner includes a pair of limit blocks arranged on the upper plate of the double-layer rack and disposed on the left and right sides of the upper plate, and an electric energy meter positioning groove arranged on the limit block for placing and positioning the electric energy meter.

4. The three-phase electronic prepaid energy meter appearance automatic detection platform according to claim 3 is characterized in that: The power plug automatic plug-in module includes a first double-rod sliding cylinder fixedly arranged on the lower plate of the double-layer rack, a power plug mounting plate arranged at the front end of the piston rod of the first double-rod sliding cylinder and located at the front end of the double-layer rack in an upright state, a pair of customized power copper sheets rotatably arranged on the power plug mounting plate through a rotating shaft pin and pointing in the direction of the electric energy meter locator, a first spring connected between the power plug mounting plate and the customized power copper sheet for rotating the rod body of the plug-in part of the customized power copper sheet around the rotating shaft pin to an upwardly lifted state, a double-rod cylinder arranged on the power plug mounting plate, and a lifting block arranged on the piston rod of the double-rod cylinder for pressing the customized power copper sheet so that the rod body of the plug-in part of the customized power copper sheet overcomes the elastic force of the first spring and rotates around the rotating shaft pin to a horizontal plug-in state.

5. The three-phase electronic prepaid energy meter appearance automatic detection platform according to claim 1 is characterized in that: The communication probe automatic plug-in module includes a second double-rod slide cylinder fixedly arranged on the lower plate of the double-layer rack, a probe mounting plate arranged at the front end of the piston rod of the second double-rod slide cylinder and located at the rear end of the double-layer rack in an upright state, a probe mounting seat block arranged on the probe mounting plate, a pair of customized communication probes arranged on the probe mounting seat block and pointing to the direction of the electric energy meter locator for movement along the front-to-back direction, a probe needle head arranged at the front end of the customized communication probe for plug-in connection with the communication interface of the electric energy meter, a section of thickened cone arranged at the rear end of the probe needle head, a section of guide cylinder arranged at the rear end of the thickened cone, a limit rod arranged at the rear end of the thickened cone, a second spring sleeved on the limit rod, a cover plate is arranged at the rear end of the probe mounting seat block, the customized communication probe is moved along the front-to-back direction on the guide hole of the probe mounting seat block through the guide cylinder, and the limit rod on the customized communication probe is connected to a fixing ring after passing through the cover plate.

6. The three-phase electronic prepaid energy meter appearance automatic detection platform according to claim 1 is characterized in that: The large base plate is provided with three U-shaped photoelectric sensors for accurately locating the position of the integrated power supply communication module, which are respectively used to detect and locate the placement and taking position of the electric energy meter, the LCD screen and silk screen detection position and the button detection position.

7. The three-phase electronic prepaid energy meter appearance automatic detection platform according to claim 1 is characterized in that: The synchronous belt motion mechanism includes a pair of fixed plates arranged on the large base plate, a driving wheel and an idler wheel respectively arranged on the pair of fixed plates for rotation, a stepper motor arranged on the fixed plates for driving the driving wheel to rotate, and a synchronous belt connected between the driving wheel and the idler wheel. A connecting block is arranged on one side of the slider, and the synchronous belt is fixed to the connecting block on the slider through a synchronous belt pressure plate.

8. The three-phase electronic prepaid energy meter appearance automatic detection platform according to claim 1 is characterized in that: The key detection module includes a mounting plate arranged on the middle crossbeam, and a number of pen-shaped cylinders arranged on the mounting plate of the middle crossbeam. The piston rod of the pen-shaped cylinder is arranged downward, and the lower end of the piston rod of the pen-shaped cylinder is provided with a customized special-shaped pressure block for pressing the button on the electric energy meter.

9. The three-phase electronic prepaid energy meter appearance automatic detection platform according to claim 1 is characterized in that: The visual module includes a mounting plate arranged on the top crossbeam, a camera arranged on the mounting plate of the top crossbeam, a light source bracket arranged on the mounting plate of the top crossbeam, and a light source arranged on the light source bracket and located outside the camera.

10. A detection method using the three-phase electronic prepaid energy meter appearance automatic detection platform according to any one of claims 1 to 9, characterized in that: The steps include: (1) Preparation: Control the synchronous belt motion mechanism through the PLC controller to move the integrated power supply communication module to the placement and retrieval position of the electric energy meter; control the piston rod of the double-rod cylinder through the PLC controller so that the lifting block at the front end of the piston rod of the double-rod cylinder pushes the customized power supply copper sheet to a horizontal plug-in state; (2) Electricity meter placement: The operator or a manipulator installed next to the three-phase electronic prepaid energy meter appearance automatic inspection platform places the energy meter in the energy meter positioning slot of the integrated power supply communication module; (3) Automatic plug-in: The PLC controller controls the movement of the first double-rod slide cylinder and the second double-rod slide cylinder, so that the rod body of the plug-in part of the customized power copper sheet on the power plug automatic plug-in module is inserted into the power interface of the electric energy meter, and at the same time, the customized communication probe on the communication probe automatic plug-in module is plugged into the communication interface of the electric energy meter; wherein, after the rod body of the plug-in part of the customized power copper sheet is inserted into the power interface of the electric energy meter, the PLC controller controls the movement of the piston rod of the double-rod cylinder, so that the lifting block at the front end of the piston rod of the double-rod cylinder is out of contact with the customized power copper sheet, and under the pulling action of the first spring, the rod body of the plug-in part of the customized power copper sheet is lifted up, thereby achieving reliable conductive contact with the power interface of the electric energy meter; (4) LCD screen and silk screen inspection: The electric energy meter is powered on and connected to the communication, the synchronous belt motion mechanism is controlled by the PLC controller, the integrated power supply communication module is moved to the LCD screen and silk screen inspection position, and the LCD screen and silk screen are inspected by the visual module; (5) Key detection: The PLC controller controls the movement of the synchronous belt motion mechanism, moves the integrated power communication module to the key detection position, and the pen-shaped cylinder on the key detection module moves in sequence. The customized special-shaped pressure block at the front end of the piston rod of the pen-shaped cylinder presses the key, and the electric energy meter gives corresponding feedback. The visual module and the upper computer software are then used for recognition to determine whether the key is good or bad, thus completing the key detection.

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