An encoding mechanism for an electric energy meter assembly system

Abstract

The present invention relates to the technical field of electric energy meter assembly systems, and discloses a coding mechanism for an electric energy meter assembly system. The technical solution thereof mainly comprises a coding box, a pallet transport line passes through the interior of the coding box, and the pallet transport line is used to transport a tooling pallet equipped with an electric energy meter; a pallet lifting mechanism, a table position positioning mechanism, a laser coding machine, and a smoke dust collector are arranged inside the coding box; the pallet lifting mechanism is arranged below the pallet transport line, and is used to lift the tooling pallet upward to separate it from the pallet assembly line; the table position positioning mechanism is arranged above the pallet transport line, and is used to locate the position of the electric energy meter on the working pallet; the laser coding machine comprises a laser engraving head and an engraving moving mechanism for driving the laser engraving head to move its position, the laser engraving head is arranged directly above the pallet transport line, and the engraving moving mechanism is arranged on one side of the pallet transport line; the suction head of the smoke dust collector is arranged on the side of the position where the pallet lifting mechanism lifts the tooling pallet.

Description

Technical Field

[0001] The invention relates to the technical field of electric energy meter assembly systems, and more specifically, to a coding mechanism for an electric energy meter assembly system. Background Art

[0002] The "electricity meter automatic assembly system" comprehensively uses technologies in the fields of robots, computer control, sensor detection, pneumatic and electric control, image recognition and computer network communication to realize automatic operations in various links such as electricity meter transmission, pressure resistance test, appearance inspection, accuracy and multi-function assembly, lead seal engraving, and assembly certificate affixing;

[0003] The engraving mechanism is used to automatically laser engrave the QR code on the ear seal and the sealing buckle of the programming cover of the qualified electricity meter according to the system requirements after the functional assembly of the electricity meter is completed, and bind the engraving data with the barcode information of the electricity meter and upload it to the assembly system management software.

[0004] Generally, when a laser coding mechanism is used in practice, due to the small coding position of the electric energy meter, when the positioning is not accurate enough, it is easy to cause unclear coding text and position deviation, which will cause adverse effects on the appearance of the electric energy meter. Summary of the invention

[0005] The purpose of the present invention is to provide a coding mechanism for an electric energy meter assembly system, the entire coding process can be completed fully automatically, the position of the electric energy meter can be accurately located, and the accuracy of the coding work is greatly improved.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a coding mechanism for an electric energy meter assembly system, comprising a coding box, a pallet transport line passing through the interior of the coding box, and the pallet transport line being used to transport a tooling pallet equipped with an electric energy meter;

[0007] The coding box is provided with a pallet lifting mechanism, a table position positioning mechanism, a laser coding machine, and a smoke dust collector; the pallet lifting mechanism is arranged below the pallet transport line, and is used to lift the tooling pallet upward to separate it from the pallet assembly line; the table position positioning mechanism is arranged above the pallet transport line, and is used to locate the position of the electric energy meter on the working pallet; the laser coding machine comprises a laser engraving head and an engraving moving mechanism for driving the laser engraving head to move, the laser engraving head is arranged directly above the pallet transport line, and the engraving moving mechanism is arranged on one side of the pallet transport line; the suction head of the smoke dust collector is arranged on the side of the position where the pallet lifting mechanism lifts the tooling pallet.

[0008] As a preferred technical solution of the present invention, the tray lifting mechanism includes telescopic support columns, connecting rods, a tray support plate, and a low-level structure support frame. The low-level structure support frame is fixedly connected to the inside of the coding box and is arranged below the tray transportation line. Two ends of the connecting rod are respectively fixedly connected to the base part of the telescopic support column and the low-level structure support frame. The telescopic part of the telescopic support column is fixedly connected to the middle of the bottom surface of the tray support plate. The tray support plate is arranged directly below the central position of the tray transportation line.

[0009] As a preferred technical solution of the present invention, the low-level structure support frame includes two parallel first transverse structure rods and two parallel first longitudinal structure rods. Two ends of the first transverse structure rod are respectively fixedly connected to the inner side walls of the coding box. Two ends of one of the first longitudinal structure rods are respectively connected to the ends of the two first transverse structure rods. Two ends of the other first longitudinal structure rod are respectively connected to the rod body parts of the two first transverse structure rods. The first longitudinal structure rod is parallel to the tray transportation line.

[0010] As a preferred technical solution of the present invention, the tray lifting mechanism is configured with a tray interceptor and an infrared sensor. The tray interceptor includes a mounting plate, an intercepting telescopic device, and an intercepting bar. The mounting plate is connected to the top surface of the first transverse structure rod corresponding to the discharging direction of the tray transportation line by bolts. The base part of the intercepting telescopic device is fixedly connected to the mounting plate. The intercepting bar is connected to the side of the telescopic part of the intercepting telescopic device facing the tray support plate. The infrared sensor is arranged on the top surface of the first transverse structure rod on one side of the feeding direction of the tray transportation line. The infrared sensor is arranged directly below the tray transportation line. The infrared sensor is used to sense whether the tooling tray reaches inside the coding box. If so, it is associated with starting the telescopic part of the intercepting telescopic device to extend and drive the intercepting bar to rise to block the transported tooling tray.

[0011] As a preferred technical solution of the present invention, the surface position positioning mechanism includes a high-level structure support frame, a multi-row surface position locator, and two symmetric single-row surface position locators. The high-level structure support frame is arranged above the tray transportation line. The high-level structure support frame includes two second transverse structure rods and two second longitudinal structure rods connected in a rectangle.

[0012] The single-row surface position locator includes a first mounting plate, a single-row telescopic device, a single-row connecting rod, and a plurality of single-row positioning partition strips. The first mounting plate is connected to the middle of the second longitudinal structure rod. One side of the first mounting plate is fixedly connected to the base part of the single-row telescopic device. The telescopic part of the single-row telescopic device is detachably connected to the single-row connecting rod. A plurality of the single-row positioning partition strips are evenly connected to the side of the single-row connecting rod facing the tooling tray.

[0013] The multi-line epitope locator includes two second mounting plates, two multi-line expanders, and a row-column separator. The two second mounting plates are respectively connected to the middle parts of the two second transverse structural rods. One side of the second mounting plate is fixedly connected to the base part of the multi-line expander. The two ends of the row-column separator are respectively detachably connected between the expansion parts of the two multi-line expanders. The row-column separator includes a plurality of row separators and column separators connected according to the position and shape of the electric energy meters on the tooling tray.

[0014] As a preferred technical solution of the present invention, four vertical structural rods are vertically connected between the bottom surfaces of the four corners of the high-level structural support frame and the low-level structural support frame.

[0015] As a preferred technical solution of the present invention, the laser coding machine includes a laser engraving head and an engraving movement mechanism for driving the position movement of the laser engraving head. The laser engraving head is arranged directly above the tray transport line, and the engraving movement mechanism is arranged on one side of the tray transport line;

[0016] The engraving movement mechanism includes a longitudinal track plate, a longitudinal moving seat, a vertical track plate, a vertical moving seat, a transverse track plate, and a transverse moving seat. The two ends of the longitudinal track plate are respectively fixedly connected to the two first transverse structural rods. The longitudinal moving seat is connected to the track part on the longitudinal track plate. The vertical track plate is fixedly connected to the longitudinal moving seat. The vertical moving seat is connected to the track part of the vertical track plate. The transverse track plate is fixedly connected to the vertical moving seat. The transverse moving seat is connected to the track part of the transverse track plate. One end of the transverse moving seat facing the tray transport line is docked with the laser engraving head.

[0017] As a preferred technical solution of the present invention, the smoke dust collector is configured with at least two suction heads and an air flow conveying pipe. The smoke dust collector is arranged at the bottom of the coding box. The two ends of the air flow conveying pipe are respectively connected to the suction head and the main body of the smoke dust collector. The suction head is connected to the bottom of the second longitudinal structural rod.

[0018] In summary, the present invention has the following beneficial effects: Inside the coding box, there are a pallet lifting mechanism, a meter position positioning mechanism, a laser coding machine, and a smoke dust removal machine; they are respectively used to lift the tooling pallet and separate it from the pallet transportation line, then confirm the position of the electricity meter on the tooling pallet. Next, since the position of the electricity meter has been determined, the laser coding machine can be used to code the electricity meter at this time. During the coding process, a certain amount of smoke will be generated, and the smoke dust removal machine is used for cleaning, so that the electricity meter remains relatively clean after coding. After completing the above steps, the coding link is officially completed. The entire coding process can be fully automated, the position of the electricity meter can be accurately positioned, the accuracy of the coding work is greatly improved, and it is convenient for the actual electricity meter assembly system to work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic diagram of the pallet lifting mechanism of the present invention;

[0021] Figure 3 is a schematic diagram of the meter position positioning mechanism of the present invention;

[0022] Figure 4 is a schematic diagram of the telescopic device of the present invention.

[0023] In the figure: 1, coding box; 2, pallet transportation line; 3, laser engraving head; 4, smoke dust removal machine; 5, suction head; 6, telescopic support column; 7, connecting rod; 8, pallet support plate; 9, first transverse structural rod; 10, first longitudinal structural rod; 11, infrared sensor; 12, mounting plate; 13, intercepting telescopic device; 14, intercepting bar; 15, second transverse structural rod; 16, second longitudinal structural rod; 17, first mounting plate; 18, single-row telescopic device; 19, single-row connecting rod; 20, single-row positioning partition; 21, second mounting plate; 22, multi-row telescopic device; 23, row partition; 24, column partition; 25, vertical structural rod; 26, longitudinal track plate; 27, longitudinal moving seat; 28, vertical track plate; 29, vertical moving seat; 30, transverse track plate; 31, transverse moving seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following further describes the present invention in detail with reference to the accompanying drawings.

[0025] The present invention provides a coding mechanism for an electricity meter assembly system, as Figure 1As shown in the figure, it includes a coding box 1, and a pallet transportation line 2 passes through the inside of the coding box 1. Generally, the pallet transportation line 2 is located in the middle position on one side inside the coding box 1. The pallet transportation line 2 is used to transport the tooling pallets loaded with electric energy meters. Among them, different specifications of electric energy meters are loaded with different tooling pallets. Generally, if the size of the electric energy meter is large, only one row of electric energy meters will be loaded on one tooling pallet, and there are only two or three electric energy meters in one row. If the size of the electric energy meter is small, the electric energy meters will be loaded in multiple rows and columns on one tooling pallet, generally two rows and three columns or four columns;

[0026] Inside the coding box 1, there are a pallet lifting mechanism, a meter position positioning mechanism, a laser coding machine, and a smoke dust removal machine 4; they are respectively used to lift the tooling pallet and separate it from the pallet transportation line 2, then confirm the position of the electric energy meter on the tooling pallet. Then, since the position of the electric energy meter has been determined, at this time, the electric energy meter can be coded by the laser coding machine. During the coding process, a certain amount of smoke will be generated, and the smoke dust removal machine 4 is used for cleaning, so that the electric energy meter remains relatively clean after coding. After completing the above steps, the coding link is officially completed. The entire coding process can be completed fully automatically, and the position of the electric energy meter can be accurately positioned, greatly improving the accuracy of the coding work and facilitating the actual operation of the electric energy meter assembly system.

[0027] The pallet lifting mechanism is arranged below the pallet transportation line 2 and is used to lift the tooling pallet upward to separate it from the pallet assembly line;

[0028] Specifically, as Figure 2 shown in the figure, the pallet lifting mechanism includes a telescopic support column 6, a connecting rod 7, a pallet support plate 8, and a low-level structure support frame. The low-level structure support frame is fixedly connected to the inside of the coding box 1 and is arranged below the pallet transportation line 2. The two ends of the connecting rod 7 are respectively fixedly connected to the base part of the telescopic support column 6 and the low-level structure support frame. The telescopic part of the telescopic support column 6 is fixedly connected to the middle of the bottom surface of the pallet support plate 8. The pallet support plate 8 is arranged directly below the center position of the pallet transportation line 2;

[0029] The low-level structure support frame provides a fulcrum for the telescopic support column 6. When there is a tooling pallet passing by, the telescopic part can extend upward, so that the pallet support plate 8 rises, lifting the tooling pallet away from the pallet transportation line 2, making the position of the electric energy meter on the tooling pallet stable relative to the laser coding machine, so as to facilitate subsequent position confirmation and coding operations.

[0030] The low-level structure support frame includes two parallel first transverse structure rods 9 and two parallel first longitudinal structure rods 10. The two ends of the first transverse structure rod 9 are respectively fixedly connected to the inner side walls of the coding box 1. The two ends of one first longitudinal structure rod 10 are respectively connected to the ends of the two first transverse structure rods 9, and the two ends of the other first longitudinal structure rod 10 are respectively connected to the rod bodies of the two first transverse structure rods 9. The first longitudinal structure rod 10 is parallel to the pallet transport line 2.

[0031] The pallet lifting mechanism is configured with a pallet interceptor and an infrared sensor 11. The pallet interceptor includes a mounting plate 12, an intercepting expander 13, and an intercepting bar 14. The mounting plate 12 is connected to the top surface of the first transverse structure rod 9 corresponding to the discharge direction of the pallet transport line 2 by bolts. The base part of the intercepting expander 13 is fixedly connected to the mounting plate 12. The intercepting bar 14 is connected to the side of the telescopic part of the intercepting expander 13 facing the pallet tray 8. The infrared sensor 11 is arranged on the top surface of the first transverse structure rod 9 on one side of the feeding direction of the pallet transport line 2, and the infrared sensor 11 is arranged directly below the pallet transport line 2.

[0032] It should be noted that the expanders in the present invention, such as the intercepting expander 13, the single-row expander 18, and the multi-row expander 22, are only named differently because of their different positions as Figure 4 shown.

[0033] The infrared sensor 11 is used to sense whether the tooling pallet has reached inside the coding box 1. If so, the telescopic part of the intercepting expander 13 is associated to start extending, driving the intercepting bar 14 to rise and block the transported tooling pallet.

[0034] In actual use, when the infrared sensor 11 senses that a tooling pallet has entered the coding box 1 on the pallet transport line 2, the intercepting expander 13 is controlled to act through the electrical control system, extending the telescopic part, so that the intercepting bar 14 rises. When the tooling pallet moves to the position of the intercepting bar 14, it can be blocked, facilitating the subsequent rising of the pallet tray 8 to stably support the tooling pallet.

[0035] As Figure 3 shown, the meter position positioning mechanism is arranged above the pallet transport line 2 and is used to position the position of the electricity meter on the working pallet. The meter position positioning mechanism includes a high-level structure support frame, a multi-row meter position locator, and two symmetric single-row meter position locators.

[0036] The high-level structure support frame is arranged above the pallet transport line 2. The high-level structure support frame includes two second transverse structure rods 15 and two second longitudinal structure rods 16 connected in a rectangle. Four vertical structure rods 25 are vertically connected between the bottom surfaces of the four corners of the high-level structure support frame and the low-level structure support frame. The high-level structure support frame is used to provide a fulcrum for the single-row meter position locator and the multi-row meter position locator, facilitating the subsequent accurate positioning of the electricity meter.

[0037] The single-row epitope locator includes a first mounting plate 17, a single-row expander 18, a single-row connecting rod 197, and several single-row positioning spacers 20. The first mounting plate 17 is connected to the middle of the second longitudinal structural rod 16. One side of the first mounting plate 17 is fixedly connected to the base part of the single-row expander 18. The telescopic part of the single-row expander 18 is detachably connected to the single-row connecting rod 197. Several single-row positioning spacers 20 are evenly connected to the side of the single-row connecting rod 197 facing the tooling tray.

[0038] When the tooling tray loaded with single-row arranged electric energy meters is lifted, control the telescopic part of the single-row expander 18 to extend. If it falls into the gap between two electric energy meters without obstruction, it can indicate that the epitope of the electric energy meter is accurate and no adjustment is required, and the subsequent coding operation can be directly carried out. If there is an obstruction, it indicates that the position of the electric energy meter is incorrect and needs to be adjusted. Then, the staff can be notified to come and handle it through the communication system of the entire electric energy meter assembly system.

[0039] The multi-row epitope locator includes two second mounting plates 21, two multi-row expanders 22, and a row-column separator. The two second mounting plates 21 are respectively connected to the middle of the two second transverse structural rods 15. One side of the second mounting plate 21 is fixedly connected to the base part of the multi-row expander 22. The two ends of the row-column separator are respectively detachably connected between the telescopic parts of the two multi-row expanders 22. The row-column separator includes several row spacers 23 and column spacers 24 connected according to the position shape of the electric energy meters on the tooling tray.

[0040] When the tooling tray loaded with multi-row and multi-column arranged electric energy meters is lifted, simultaneously control the telescopic parts of the two multi-row expanders 22 to extend. If it falls into the gap between the electric energy meters without obstruction, it can indicate that the epitope of the electric energy meter is accurate and no adjustment is required, and the subsequent coding operation can be directly carried out. If there is an obstruction, it indicates that the position of the electric energy meter is incorrect and needs to be adjusted. Then, the staff can be notified to come and handle it through the communication system of the entire electric energy meter assembly system.

[0041] It should be noted that the single-row epitope locator and the multi-row epitope locator do not come into contact. In order to avoid contact between the two and interfering with each other's work, the single-row epitope locator is specially made into a two-piece type with symmetrical settings at both ends, so as to determine the positioning at both ends of the electric energy meter respectively and comprehensively judge whether the position of the electric energy meter is accurate.

[0042] At the same time, generally, a single pallet assembly line serves electric energy meters of only one specification at the same time period. At this time, only the corresponding single-row connecting rod 197 and single-row positioning spacer 20 or row-column separator need to be installed in advance to continuously carry out positioning. If the specification of the electric energy meter changes, only the corresponding single-row connecting rod 197 and single-row positioning spacer 20 or row-column separator need to be replaced to be put into actual positioning use again.

[0043] As Figure 1 shown, the laser coding machine includes a laser engraving head 3 and an engraving moving mechanism for driving the position movement of the laser engraving head 3. The laser engraving head 3 is arranged directly above the pallet conveying line 2, and the engraving moving mechanism is arranged on one side of the pallet conveying line 2;

[0044] Specifically, the laser coding machine includes a laser engraving head 3 and an engraving moving mechanism for driving the position movement of the laser engraving head 3. The laser engraving head 3 is arranged directly above the pallet conveying line 2, and the engraving moving mechanism is arranged on one side of the pallet conveying line 2;

[0045] The engraving moving mechanism includes a longitudinal track plate 26, a longitudinal moving seat 27, a vertical track plate 28, a vertical moving seat 29, a transverse track plate 30, and a transverse moving seat 31; both ends of the longitudinal track plate 26 are fixedly connected to two first transverse structural rods 9 respectively. The longitudinal moving seat 27 is connected to the track part on the longitudinal track plate 26. The vertical track plate 28 is fixedly connected to the longitudinal moving seat 27. The vertical moving seat 29 is connected to the track part of the vertical track plate 28. The transverse track plate 30 is fixedly connected to the vertical moving seat 29. The transverse moving seat 31 is connected to the track part of the transverse track plate 30. One end of the transverse moving seat 31 facing the pallet conveying line 2 is docked with the laser engraving head 3.

[0046] Through the movement control in the transverse, longitudinal, and vertical directions, the engraving moving mechanism can realize the position movement of the laser engraving head 3 in the three-dimensional space, so as to be able to perform coding operations on watt-hour meters of different specifications, facilitate actual general operations, and improve the applicable range of the coding mechanism.

[0047] The suction head 5 of the smoke dust removal machine 4 is arranged on the side of the position where the pallet lifting mechanism lifts the tooling pallet. The smoke dust removal machine 4 is equipped with at least two suction heads 5 and air flow conveying pipes. The smoke dust removal machine 4 is arranged at the bottom of the coding box 1. Both ends of the air flow conveying pipe are respectively connected to the suction head 5 and the main body of the smoke dust removal machine 4. The suction head 5 is connected to the bottom of the second longitudinal structural rod 16, which can better approach the part where laser coding is performed, so as to be able to suck smoke more efficiently and maintain the cleanliness of the watt-hour meter.

[0048] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A coding mechanism for an electric energy meter assembly system, characterized in that: It comprises a code engraving box (1), a pallet transport line (2) passing through the interior of the code engraving box (1), and the pallet transport line (2) is used to transport a tooling pallet equipped with an electric energy meter; The code engraving box (1) is provided with a pallet lifting mechanism, a table position positioning mechanism, a laser code engraving machine, and a smoke dust removal machine (4); the pallet lifting mechanism is arranged below the pallet conveying line (2) and is used to lift the tooling pallet upward to separate it from the pallet assembly line; the table position positioning mechanism is arranged above the pallet conveying line (2) and is used to locate the position of the electric energy meter on the working pallet; the laser code engraving machine comprises a laser engraving head (3) and an engraving moving mechanism for driving the laser engraving head (3) to move its position, the laser engraving head (3) being arranged directly above the pallet conveying line (2), and the engraving moving mechanism being arranged on one side of the pallet conveying line (2); the suction head (5) of the smoke dust removal machine (4) is arranged on the side of the position where the pallet lifting mechanism lifts the tooling pallet; The epitope positioning mechanism comprises a high-rise structure support frame, a multi-row epitope locator, and two symmetrical single-row epitope locators; the high-rise structure support frame is arranged above the pallet transport line (2), and the high-rise structure support frame comprises two second transverse structure rods (15) and two second longitudinal structure rods (16) connected in a rectangular shape; The single-row table position locator comprises a first mounting plate (17), a single-row telescopic device (18), a single-row connecting rod (19), and a plurality of single-row positioning strips (20); the first mounting plate (17) is connected to the middle of the second longitudinal structural rod (16); one side of the first mounting plate (17) is fixedly connected to the base of the single-row telescopic device (18); the telescopic portion of the single-row telescopic device (18) is detachably connected to the single-row connecting rod (19); and a plurality of single-row positioning strips (20) are evenly connected to the side of the single-row connecting rod (19) facing the tooling tray; The multi-row meter position locator comprises two second mounting plates (21), two multi-row telescopes (22), and a row-column separator, wherein the two second mounting plates (21) are respectively connected to the middle of the two second transverse structural rods (15), one side of the second mounting plate (21) is fixedly connected to the base of the multi-row telescope (22), and the two ends of the row-column separator are respectively detachably connected between the telescopic parts of the two multi-row telescopes (22), and the row-column separator comprises a plurality of row separators (23) and column separators (24) connected according to the position shape of the electric energy meter on the tooling tray.

2. The coding mechanism of an electric energy meter assembly system according to claim 1, characterized in that: The pallet lifting mechanism includes telescopic support columns (6), connecting rods (7), a pallet supporting plate (8), and a low-level structure support frame. The low-level structure support frame is fixedly connected to the inside of the coding box (1) and is arranged below the pallet transportation line (2). The two ends of the connecting rod (7) are respectively fixedly connected to the base part of the telescopic support column (6) and the low-level structure support frame. The telescopic part of the telescopic support column (6) is fixedly connected to the middle of the bottom surface of the pallet supporting plate (8). The pallet supporting plate (8) is arranged directly below the central position of the pallet transportation line (2).

3. The coding mechanism of an electric energy meter assembly system according to claim 2, characterized in that: The low-level structure support frame includes two parallel first transverse structure rods (9) and two parallel first longitudinal structure rods (10). The two ends of the first transverse structure rod (9) are respectively fixedly connected to the inner side walls of the coding box (1). The two ends of one first longitudinal structure rod (10) are respectively connected to the ends of the two first transverse structure rods (9). The two ends of the other first longitudinal structure rod (10) are respectively connected to the rod body parts of the two first transverse structure rods (9). The first longitudinal structure rod (10) is parallel to the pallet transportation line (2).

4. A coding mechanism for an electric energy meter assembly system according to claim 3, characterized in that: The pallet lifting mechanism is configured with a pallet interceptor and an infrared sensor (11). The pallet interceptor includes a mounting plate (12), an intercepting telescopic device (13), and an intercepting bar (14). The mounting plate (12) is connected to the top surface of the first transverse structure rod (9) corresponding to the discharging direction of the pallet transportation line (2) by bolts. The base part of the intercepting telescopic device (13) is fixedly connected to the mounting plate (12). The intercepting bar (14) is connected to the side of the telescopic part of the intercepting telescopic device (13) facing the pallet supporting plate (8). The infrared sensor (11) is arranged on the top surface of the first transverse structure rod (9) on one side of the feeding direction of the pallet transportation line (2). The infrared sensor (11) is arranged directly below the pallet transportation line (2). The infrared sensor (11) is used to sense whether the tooling pallet reaches inside the coding box (1). If so, it is associated with starting the telescopic part of the intercepting telescopic device (13) to extend and drive the intercepting bar (14) to rise to block the transported tooling pallet.

5. The coding mechanism of an electric energy meter assembly system according to claim 4, characterized in that: Four vertical structure rods (25) are vertically connected between the bottom surfaces of the four corners of the high-level structure support frame and the low-level structure support frame.

6. The coding mechanism of an electric energy meter assembly system according to claim 5, characterized in that: The laser coding machine includes a laser engraving head (3) and an engraving moving mechanism for driving the position movement of the laser engraving head (3). The laser engraving head (3) is arranged directly above the pallet transportation line (2). The engraving moving mechanism is arranged on one side of the pallet transportation line (2). The engraving moving mechanism includes a longitudinal track plate (26), a longitudinal moving seat (27), a vertical track plate (28), a vertical moving seat (29), a transverse track plate (30), and a transverse moving seat (31); both ends of the longitudinal track plate (26) are fixedly connected to the two first transverse structural rods (9) respectively, the longitudinal moving seat (27) is connected to the track portion on the longitudinal track plate (26), the vertical track plate (28) is fixedly connected to the longitudinal moving seat (27), the vertical moving seat (29) is connected to the track portion of the vertical track plate (28), the transverse track plate (30) is fixedly connected to the vertical moving seat (29), the transverse moving seat (31) is connected to the track portion of the transverse track plate (30), and one end of the transverse moving seat (31) facing the tray transportation line (2) is docked with the laser engraving head (3).

7. The coding mechanism of an electric energy meter assembly system according to claim 6, characterized in that: The smoke dust removal machine (4) is configured with at least two suction heads (5) and an air flow conveying pipe. The smoke dust removal machine (4) is arranged at the bottom of the coding box (1). Both ends of the air flow conveying pipe are respectively connected to the suction head (5) and the main body of the smoke dust removal machine (4), and the suction head (5) is connected to the bottom of the second longitudinal structural rod (16).

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