Metering cabinet and cabinet door forming device thereof

Abstract

The invention relates to the technical field of metering cabinet production, in particular to a metering cabinet and a cabinet door forming device.The metering cabinet comprises a metering cabinet shell and an intelligent electric energy meter arranged in the metering cabinet shell, a cabinet door is hinged to the front end of the metering cabinet shell, and a plurality of screw holes are formed in the inner side of the cabinet door. Remote electricity pre-selling, arrearage tripping, electric energy distribution, electric energy metering and electric energy information acquisition can be realized, and the characteristics of practicability, convenience, safety, reliability, long service life and the like are realized; the forming device comprises a base and a support for fixing the middle of the top of the base, an air cylinder is fixedly installed on the inner side of the top end of the support, a downward pressing part is fixedly connected to the end of the telescopic end of the air cylinder, and a bearing part is fixedly arranged at the position, corresponding to the downward pressing part, of the top of the base. According to the forming device, two times of continuous 90-degree bending, punching and tapping are completed in one step through the time difference of different components in the downward moving process of the downward pressing part, and a target plate can be automatically corrected through the downward moving process of the downward pressing part.

Description

Technical Field

[0001] This invention relates to the field of metering cabinet manufacturing technology, specifically a metering cabinet and its door forming device. Background Technology

[0002] Metering cabinets are core equipment in power systems used for accurate metering of electrical energy, and for realizing electricity management and safety protection. They are widely used by industrial, commercial and residential electricity users and are the key basis for electricity bill settlement between power departments and users.

[0003] However, metering cabinets in the domestic market generally lack remote control and prepayment functions, making it impossible to realize functions such as remote pre-sale of electricity and tripping due to overdue payments. This makes it difficult to resolve long-standing electricity disputes between users and power supply departments, resulting in waste of power resources and an imperfect management system.

[0004] Meanwhile, the doors of metering cabinets in existing technologies are generally made of thin steel plates that are repeatedly stamped and bent to form a multi-dimensional three-dimensional frame similar to "reinforcing ribs". Current cabinet door forming devices generally perform continuous bending on each bending edge in sequence, which is not only inefficient, but also cannot guarantee the consistency of bending degree on each edge. In addition, in order to ensure the electrical safety of the cabinet and the stable operation of the metering components, flame-retardant insulating baffles are fixed to the inside of the cabinet door with screws. However, the forming devices in existing technologies usually require multiple devices to cooperate in the bending, punching and tapping processes, which affects production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a metering cabinet and its door forming device to solve the problems mentioned in the background art.

[0006] The objective of this invention can be achieved through the following technical solutions: A metering cabinet, the metering cabinet comprising: The metering cabinet housing contains a smart energy meter, which in turn contains a control module and a detection and metering module, a user operation module, a data storage module, and a data communication module connected to the control module. The front end of the metering cabinet housing is hinged with a cabinet door, and the inside of the cabinet door has multiple screw holes for installing flame-retardant and insulating baffles.

[0007] A molding apparatus for producing the cabinet door of the aforementioned metering cabinet, the molding apparatus comprising: A base, wherein a bracket is fixedly provided on one side of the top center of the base, a cylinder is fixedly installed on the inner side of the top of the bracket, a pressing part is fixedly connected to the telescopic end of the cylinder, and a supporting part is fixedly provided on the top of the base at the position corresponding to the pressing part; The pressing part includes a horizontal plate 1, a horizontal plate 2, an elastic element 1 connecting the horizontal plate 1 and the horizontal plate 2, and a square truncated pyramid fixed at the bottom of the horizontal plate 2. A slider 1 and a slider 2 are slidably installed between the square truncated pyramid and the horizontal plate 2. The supporting part includes a horizontal plate three, a horizontal plate four, an elastic element three connecting the horizontal plate three and the horizontal plate four, and a support fixed to the top of the horizontal plate four. A bending and punching mechanism for forming cabinet doors is provided between the horizontal plate one and the horizontal plate four.

[0008] As a preferred embodiment of the molding device of the present invention, there are four sliders and four sliders, which are alternately distributed around the square truncated pyramid. Each slider and slider has a T-slot on the side facing the square truncated pyramid. T-strips that are adapted to the corresponding T-slots are fixed at the four sides and four corners of the square truncated pyramid. The T-strips are slidably connected to the inside of the corresponding T-slots.

[0009] As a preferred embodiment of the molding device of the present invention, a cross groove is provided through the horizontal plate 2 at the position corresponding to each slider 1 and slider 2, and an elastic element 2 is slidably connected inside each cross groove, and the bottom end of each elastic element 2 is fixedly connected to the upper end of the corresponding slider 1 and slider 2 respectively.

[0010] As a preferred embodiment of the molding device of the present invention, the top of the support is provided with a sink groove, a lifting plate is movably sleeved inside the sink groove, and an elastic element is connected between the bottom end face of the lifting plate and the bottom end face of the inner cavity of the sink groove.

[0011] As a preferred embodiment of the forming device of the present invention, the bending and punching mechanism includes a side plate fixedly disposed on the top of the horizontal plate four and a pressure strip fixedly disposed on the bottom of the horizontal plate one corresponding to the side plate. The bottom end of the pressure strip movably passes through the horizontal plate two, and a bending frame is provided between the side plate and the support. Furthermore, a limiting member 1 that movably passes through the corresponding bending frame is also connected between the side plate and the support.

[0012] As a preferred embodiment of the forming device of the present invention, wherein: a punching assembly is fixedly provided on the top of the bending frame, the punching assembly includes an L-shaped pressure plate fixed on the pressure strip and a guide frame fixed on the top of the bending frame, a top block is movably inserted through the guide frame, a limiting member two is connected between the end of the top block near the corresponding side plate and the guide frame, a stamping part is installed on the end of the bending frame away from the corresponding side plate, and a column hole is also opened on the slider two, which is directly opposite to the corresponding stamping part, a circular plate is movably fitted inside the column hole, and a return spring is fixedly connected between the circular plate and the bottom end face of the inner cavity of the column hole.

[0013] As a preferred embodiment of the forming device of the present invention, the stamping part includes an annular cylinder fixed to the top of the bending frame, a stamping head that movably passes through the bending frame is sleeved inside the annular cylinder, and a connecting spring is fixed between the stamping head and the annular cylinder. The stamped part also includes a spiral groove opened inside the ring cylinder, the top of the spiral groove is connected to a straight groove, a protrusion that is slidably connected to the inside of the straight groove is fixed on the outside of the stamping head, and a tapping head for tapping internal threads is also fixed on the outside of the stamping head.

[0014] As a preferred embodiment of the molding device of the present invention, wherein: both sides of the horizontal plate 2 and the horizontal plate 4 are fixedly provided with ear blocks, and an elastic element 5 is connected between two ear blocks that are correspondingly arranged in the vertical direction.

[0015] As a preferred embodiment of the forming device of the present invention, the bending and punching mechanism further includes a clamping and positioning component installed on the support. The clamping and positioning component includes cross grooves opened at the four corners of the top outer side of the support. Each cross groove has a cross block slidably connected inside. A positioning block is fixedly provided on the top of the cross block. A connecting spring is fixedly provided between one side of the cross block and the inner cavity end face of the corresponding cross groove. A push bar is fixedly provided on the other side of the cross block. A guide frame fixed on the support is movably sleeved on the outside of the push bar. A top bar corresponding to each push bar is fixedly provided on the top of the horizontal plate three. The top of the top bar moves through the horizontal plate four and the support in sequence.

[0016] The beneficial effects of this invention are: 1. This invention utilizes the data communication module within the smart energy meter to maintain communication with the host computer, achieving remote control and prepayment functions. It enables remote pre-sale of electricity, tripping due to overdue payments, and other functions, resolving long-standing electricity disputes between users and power supply departments, reducing the waste of power resources, improving the user management system, and greatly enhancing the overall performance of the metering cabinet. It features energy distribution, energy metering, energy information collection, practicality and convenience, safety and reliability, long service life, and simple and reasonable structure. 2. This invention pushes the horizontal plate two and the horizontal plate one downwards simultaneously, allowing the slider one and slider two to contact the target material during their descent. The opposing force of the target material then pushes the slider one and slider two to undergo an upward expansion motion. After the slider one and slider two reach their maximum upward limit, the downward movement of the pressing part, in conjunction with the sinker, completes a 90° bend to the target material. Then, the pressing part continues to move downwards, causing the lifting plate to reach its maximum downward limit. The downward-moving pressure bar then pushes the corresponding bending frame along the direction of the cylinder four, bringing the target material closer to the pressing part. The bending frame is used to perform a second 90° bend on the vertical side plate after the first bend. Then, the lower pressing part is pushed down to allow the downward L-shaped pressure plate to squeeze the top block. The pushed top block pushes the punch head down, allowing the bottom end of the punch head to punch the corresponding circular plate on the side plate. The tapping head is used to tap the internal thread of the punched hole under the rotation of the punch head. This achieves the purpose of using the time difference between different parts during the downward movement of the lower pressing part to complete two consecutive 90° bends, punching, and tapping in one step. 3. This invention utilizes a passively descending horizontal plate four to compress an elastic element three. During the passive descent of the horizontal plate four, a top bar pushes against a corresponding push bar, causing the push bar to push the right-angled triangular prisms to move synchronously toward the target plate along with the cross block. This allows the automatic correction of the target plate to be achieved by using four right-angled triangular prisms that move in a centripetal motion synchronously. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a front view structural diagram of the metering cabinet of the present invention; Figure 2 This is a side view of the metering cabinet structure of the present invention; Figure 3 This is a schematic diagram of the internal module connection of the smart energy meter in the metering cabinet of the present invention; Figure 4 This is a schematic diagram of the metering cabinet door structure of the present invention; Figure 5 This is a schematic diagram of the overall structure of the cabinet door forming device of the present invention; Figure 6 This is a schematic diagram of the pressing part structure of the cabinet door forming device of the present invention; Figure 7 This is a schematic cross-sectional view of the pressing section of the cabinet door forming device of the present invention; Figure 8 This is a schematic diagram of the assembly structure of the square truncated pyramid, slider one, and slider two of the present invention. Figure 9 This is a schematic diagram of the pressed state structure of the square truncated pyramid, slider one, and slider two of the present invention. Figure 10 This is a schematic diagram of the second slider structure of the present invention; Figure 11 This is a schematic diagram of the support part of the cabinet door forming device of the present invention; Figure 12 This is the present invention. Figure 11 Overall top view; Figure 13 This is the present invention. Figure 12 Schematic diagram of the cross-sectional structure along the AA direction; Figure 14 This is the present invention. Figure 13 Enlarged schematic diagram of part A' in the middle; Figure 15 This is the present invention. Figure 12 Schematic diagram of the cross-sectional structure along the BB direction; Figure 16 This is the present invention. Figure 15 Enlarged schematic diagram of part B' in the middle; Figure 17 This is a schematic diagram of the substrate structure before the cabinet door of the present invention is formed.

[0018] The attached diagram is labeled as follows: 1. Metering cabinet housing; 11. Metering chamber; 12. Installation chamber I; 13. Installation chamber II; 14. Nameplate; 15. Metering junction box; 16. Current transformer; 17. Voltage transformer; 18. Circuit loop; 19. Post insulator; 110. Fuse; 111. Condensation controller; 112. Live indicator; 113. Power supply parameter table; 114. Analog board; 2. Smart energy meter; 3. Cabinet door; 4. Screw hole; 5. Base; 6. Bracket; 7. Cylinder; 8. Lowering part; 81. Horizontal plate one; 82. Horizontal plate two; 83. Square truncated pyramid; 84. Slider one; 85. Slider two; 86. Elastic element one; 87. Cross groove; 88. Elastic element two; 9. Support part; 91. Horizontal plate three; 92. Horizontal plate four; 93. Support; 94. Elastic component three; 95. Elastic component four; 96. Lifting plate; 97. Bending and punching mechanism; 971. Pressure bar; 972. Side plate; 973. Bending frame; 974. Restriction component one; 975. Punching assembly; 9751. Guide frame; 9752. Top block; 9753. L-shaped pressure plate; 9754. Ring cylinder; 9755. Punching head; 9756. Connecting spring one; 9757. Spiral groove; 9758. Tapping head; 9759. Round plate; 98. Clamping and positioning assembly; 981. Cross groove; 982. Top bar; 983. Cross block; 984. Connecting spring two; 985. Push bar; 986. Guide frame; 99. Ear block; 910. Elastic component five. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The metering cabinet of this invention is a core device in the power system for accurately metering electrical energy, realizing electricity management and safety protection. It is an important component of the smart grid, an indispensable key basic device in the smart distribution network, and a crucial link in ensuring the stable operation of the power grid.

[0021] The forming device of the present invention belongs to the category of stamping forming equipment. It is mainly used to form a multi-dimensional three-dimensional frame by stamping and bending sheet metal multiple times, so as to realize the two 90° bending, punching and threading of the target sheet metal in one step.

[0022] Example 1: Refer to the appendix of the instruction manual. Figure 1 and Figures 3-4 This embodiment is the first embodiment of the present invention, providing a metering cabinet, which includes a metering cabinet shell 1 and a smart energy meter 2 disposed inside the metering cabinet shell 1. The smart energy meter 2 is provided with a control module and a detection metering module, a user operation module, a data storage module and a data communication module connected to the control module. A cabinet door 3 is hinged to the front end of the metering cabinet shell 1. Multiple screw holes 4 for installing flame-retardant insulating baffles are opened on the inner side of the cabinet door 3. By adding flame-retardant insulating baffles to the inner side of the cabinet door 3, the electrical safety of the cabinet and the stable operation of the metering components can be ensured, achieving the purpose of insulation isolation, flame retardancy and fire prevention, and physical protection. Furthermore, by using thin steel plates to form a multi-dimensional three-dimensional frame similar to "reinforcing ribs" through multiple stamping and bending, the resistance of the cabinet door 3 to external impact and vibration can be improved. The control module includes a microcontroller and control circuitry. The user operation module includes a display submodule, an IC submodule, and a button submodule. The display submodule includes a compatible AMOLED display screen and display circuitry. The IC submodule includes an FM1722 contactless card reader chip and IC read / write circuitry that works with the user's IC card. The data storage module includes an SD card or hard drive. The data communication module includes a carrier submodule and a wireless submodule. The smart meter 2 works with the host computer through the carrier submodule and the wireless submodule. The carrier submodule and the wireless submodule can interact with the host computer in real time to achieve remote control and prepayment functions, enabling remote pre-sale of electricity, tripping due to arrears, and other functions. This solves the long-standing electricity disputes between users and power supply departments, reduces the waste of electricity resources, and improves the user management system.

[0023] Furthermore, such as Figures 1-2 As shown, the metering cabinet housing 1 is provided with a metering chamber 11, an installation chamber I 12, and an installation chamber II 13 that cooperate with each other. The metering chamber 13 is equipped with a smart energy meter 2, and nameplates 14 and metering junction boxes 15 are set on the upper and lower sides of the smart energy meter 2. The nameplates 14 record relevant equipment information for easy maintenance and repair. The installation chambers I 12 and II 13 are respectively equipped with current transformers 16 and voltage transformers 17. The current transformers 16, voltage transformers 17 and smart energy meter 2 are electrically connected to the metering junction box 15. The current transformers 16 and voltage transformers 17 cooperate with the detection and metering module to measure the detection data. The installation chamber I 12 is also equipped with a circuit loop 18 and a support insulator 19 with a sensor. A fuse 110 is connected to the voltage transformer 17.

[0024] Furthermore, the metering cabinet housing 1 is also equipped with a condensation controller 111, a live indicator 112, a power supply parameter table 113, and a simulation board 114 that work together. The condensation controller 111 includes a temperature and humidity sensor and a temperature and humidity display screen that work together to monitor and display the temperature and humidity of the working environment, ensuring the efficient and safe operation of the power supply system. The live indicator 112 works in conjunction with the support insulator 19 to display whether the circuit loop 18 of the metering cabinet is energized. The simulation board 114 is used to display the incoming and outgoing wiring methods inside the cabinet, so that relevant personnel can understand the situation inside the cabinet.

[0025] Furthermore, the metering cabinet housing 1 is made of aluminum-zinc coated sheet. The length, width and height of the metering cabinet housing 1 are set to 1450mm, 800mm and 2320mm respectively. The front end of the metering cabinet housing 1 is provided with multiple front doors I, front door II and front door III with door lock structure from top to bottom. For ease of description, front door I, front door II and front door III are collectively referred to as cabinet doors here.

[0026] It should be noted that this application maintains communication with the host computer through the data communication module inside the smart energy meter 2, achieving remote control and prepayment functions, realizing functions such as remote pre-sale of electricity and tripping due to overdue payments, solving the long-standing problem of electricity disputes between users and power supply departments, reducing the waste of power resources and improving the user management system, greatly improving the overall performance of the metering cabinet, and featuring the characteristics of power distribution, power metering, power information collection, practicality and convenience, safety and reliability, long service life, and simple and reasonable structure.

[0027] Example 2: Refer to the appendix of the instruction manual. Figure 5 This embodiment is the second embodiment of the present invention, which provides a cabinet door forming device for a metering cabinet. The forming device includes a base 5 and a bracket 6 fixed on one side of the top center of the base 5. A cylinder 7 is fixedly installed on the inner side of the top of the bracket 6. The cylinder 7 is a single-acting cylinder of model DSA25N200. A pressing part 8 is fixedly connected to the telescopic end of the cylinder 7. A supporting part 9 is fixedly provided on the top of the base 5 at the position corresponding to the pressing part 8.

[0028] It should be noted that before stamping the target sheet into cabinet door 3, the target sheet first needs to be stamped into the shape shown below. Figure 17 The structure shown can also punch corresponding perforations while punching the target material according to the actual installation position of the cabinet door 3. These perforations include, but are not limited to, perforations for installing the window panel. Then, as shown... Figure 17 The target sheet material with the structure shown is placed on the support part 9, and the cylinder 7 is used to push the pressing part 8 downward to complete the continuous 90° bending and punching of the target sheet material.

[0029] Furthermore, such as Figures 5-10As shown, the pressing part 8 includes a horizontal plate 1 81, a horizontal plate 2 82, an elastic element 1 86 connecting the horizontal plate 1 81 and the horizontal plate 2 82, and a square truncated pyramid 83 fixedly disposed at the bottom of the horizontal plate 2 82. The elastic element 1 86 consists of a cylinder 1 fixedly disposed at the bottom of the horizontal plate 1 81 and a straight spring 1 sleeved on the outside of the cylinder 1. The bottom end of the cylinder 1 movably passes through the horizontal plate 2 82, and the two ends of the straight spring 1 are fixedly connected to the horizontal plate 1 81 and the horizontal plate 2 82 respectively. The number of elastic elements 1 86 is set to four, and the four elastic elements 1 86 are evenly distributed in a ring between the horizontal plate 1 81 and the horizontal plate 2 82. At the corner position, slider 1 84 and slider 2 85 are slidably installed between the square truncated pyramid 83 and the horizontal plate 2 82. There are four sliders 1 84 and four sliders 2 85, which are alternately distributed around the square truncated pyramid 83. Each slider 1 84 and slider 2 85 has a T-slot on the side facing the square truncated pyramid 83. T-strips that are adapted to the corresponding T-slots are fixed at the four sides and four corners of the square truncated pyramid 83. The T-strips are slidably connected to the inside of the corresponding T-slots. The movement trajectory of the corresponding slider 1 84 and slider 2 85 can be restricted by the cooperation between the T-strips and the T-slots.

[0030] Furthermore, a cross-shaped groove 87 is provided through each of the positions of slider 1 84 and slider 2 85 on the horizontal plate 2 82. An elastic element 2 88 is slidably connected inside each cross-shaped groove 87. The elastic element 2 88 includes a cross post slidably connected inside the corresponding cross-shaped groove 87. A column groove 1 is provided at the bottom end of the cross post. A cylinder 2 is movably fitted inside the column groove. A straight spring 2 is fixedly connected between one end of the cylinder 2 inside the column groove and the end face of the inner cavity of the column groove. The bottom end of the cylinder 2 on each elastic element 2 88 is fixedly connected to the upper end of the corresponding slider 1 84 and slider 2 85.

[0031] It should be noted that each slider 84 and slider 85 has a slot at its outer bottom end to assist in secondary bending. During the stamping process of the target sheet using the pressing part 8, the sliders 84 and 85 in their initial state, under their own weight, exhibit the following characteristics: Figure 7 In the state shown, slider 84 is contracted between two adjacent sliders 85. As the pressing part 8 gradually moves downwards under the push of the cylinder 7, once the lower surfaces of sliders 84 and 85 contact the upper surface of the target material, as the pressing part 8 continues to descend, sliders 84 and 85, under the reaction force of the target material, will move upwards along the corresponding T-shaped strip, compressing the corresponding elastic element 88. Simultaneously, sliders 84 and 85, and their connected elastic element 88, will expand outwards. When sliders 84 and 85 are pushed to their maximum extent, just as... Figure 9As shown, at this time, as the pressing part 8 continues to move downward, the square prism 83, slider 1 84 and slider 2 85 maintain this state and continue to move downward to complete one stamping and bending of the target plate. To ensure that the elastic element 88 connecting slider 84 is not obstructed during movement, an arc-shaped groove can be made in the middle of the upper end of the corresponding T-shaped strip on the square prism 83.

[0032] Furthermore, such as Figure 5 , Figures 11-12 and Figure 15 As shown, the support part 9 includes a horizontal plate 3 91, a horizontal plate 4 92, an elastic element 3 94 connecting the horizontal plate 3 91 and the horizontal plate 4 92, and a support 93 fixed to the top of the horizontal plate 4 92. The elastic element 3 94 consists of a square post fixed to the bottom of the horizontal plate 4 92, a square ring fixed to the top of the horizontal plate 3 91 opposite to the square post, and straight springs 3 fixed to the four corners between the horizontal plate 3 91 and the horizontal plate 4 92. The bottom end of the square post is movably inserted into the square ring. A bending and punching mechanism 97 for forming cabinet doors is provided between the horizontal plate 1 81 and the horizontal plate 4 92. A recessed groove is opened on the top of the support 93. A lifting plate 96 is movably mounted. An elastic element 95 connects the bottom surface of the lifting plate 96 to the bottom surface of the inner cavity of the sinking trough. The elastic element 95 consists of four slots at the four corners of the bottom of the sinking trough, a cylinder 3 fixed to the bottom of the lifting plate 96 opposite to the slots, and a straight spring 4 sleeved on the outside of the cylinder 3. The bottom end of the cylinder 3 is movably inserted into the corresponding slot 2. The two ends of the straight spring 4 are fixedly connected to the lifting plate 96 and the bottom surface of the sinking trough, respectively. The elastic coefficient of the straight spring 4 is greater than that of the straight spring 2, ensuring that the slider 84 and slider 85 are aligned with the square prism 83 when pushed. Figure 9 In the state shown, the lifting plate 96 will not move downwards.

[0033] It should be noted that when the square truncated pyramid 83 of the pressing part 8 is in contact with slider 1 84 and slider 2 85, it remains as follows: Figure 9 During the downward movement of the target plate on the support part 9, the downward pressing part 8 pushes the target plate downward to press the lifting plate 96, and the downward lifting plate 96 presses the elastic element 95. During this process, the target plate, which is passively moving downward, will complete a 90° bend under the action of the pressing end of the pressing part and the groove. That is, the protruding parts on the four sides of the target plate are folded into a state that is perpendicular to the center plate. When the lifting plate 96 reaches its maximum downward movement, as the pressing part 8 continues to move downward, the horizontal plate 82 will press the elastic element 86 upward under the reaction force of the blocked lifting plate 96. During the pressing of the elastic element 86, the bending and punching mechanism 97 is triggered to complete a second 90° bend and a punching action after the second bend.

[0034] Furthermore, such as Figures 6-7 and Figures 10-15 As shown, the bending and punching mechanism 97 includes a side plate 972 fixedly mounted on the top of the horizontal plate 92 and a pressure strip 971 fixedly mounted on the bottom of the horizontal plate 81 corresponding to the side plate 972. One side of the bottom end of the pressure strip 971 is set as an inclined surface, and the bottom end of the pressure strip 971 movably passes through the horizontal plate 82. A bending frame 973 is located between the side plate 972 and the support 93. The bending frame 973 is set as an L-shaped structure, and a straight plate is integrally formed on the top of the side of the bending frame 973 facing the lifting plate 96. The bending frame 973 of the L-shaped structure has a bend at the turning point that corresponds to the bottom end of the pressure strip 971. The inclined groove is adapted to the inclined surface, and a limiting member 974 that moves through the corresponding bending frame 973 is connected between the side plate 972 and the support 93. The limiting member 974 includes a cylinder four that is fixedly connected to the corresponding side of the side plate 972 and the support 93. The cylinder four moves through the bending frame 973, and a straight spring five that is fixedly connected to the bending frame 973 and the support 93 is sleeved on the outside of the cylinder four. Two limiting members 974 and pressure strips 971 are provided between the side plate 972 and the support 93 to ensure that the bending frame 973 can move stably.

[0035] Furthermore, a punching assembly 975 is fixedly provided on the top of the bending frame 973. The punching assembly 975 includes an L-shaped pressure plate 9753 fixed on the pressure strip 971 and a guide frame 9751 fixed on the top of the bending frame 973. A top block 9752 is movably inserted through the guide frame 9751. Both ends of the top block 9752 are inclined, and the inclined surface of the end of the top block 9752 near the corresponding side plate 972 is parallel to the inclined surface of the bottom end of the pressure strip 971. The end of the top block 9752 near the corresponding side plate 972 is connected to the guide frame 9751. The second limiting component includes an ear plate fixed to the bottom of the top block 9752 and a column groove 3 opened on one side of the guide frame 9751. A rod is fixedly provided on one side of the ear plate and movably inserted into the corresponding column groove 3. A straight spring 6 is sleeved on the outside of the rod to fix and connect the ear plate and the guide frame 9751. A stamping part is installed at the end of the bending frame 973 away from the corresponding side plate 972. A column hole is also opened on the second slider 85, which is directly opposite to the corresponding stamping part. The prerequisite for the column hole to be directly opposite the corresponding stamping part is that the square truncated pyramid 83, the first slider 84, and the second slider 85 are pressed together in an angular configuration. Figure 9 As shown in the diagram, the multiple slots in this state can form a closed square annular groove. A circular plate 9759 is movably fitted inside the column hole, and a return spring is fixedly connected between the circular plate 9759 and the bottom end face of the inner cavity of the column hole.

[0036] It should be noted that the aforementioned bending and punching structures constitute a bending and punching unit, and the bending and punching mechanism 97 is composed of... Figure 11The four bending and punching units shown are used to continuously bend and punch the target plate placed on the support part 9. When the lifting plate 96 descends to its maximum limit, as the pressing part 8 continues to move down, the horizontal plate 82 will press the elastic member 86 upward under the reaction force of the blocked lifting plate 96. During the pressing of the elastic member 86, the pressure bar 971 that continues to descend will abut against the corresponding bending frame 973 and push the bending frame 973 to press the limiting member 974 in the direction of the lifting plate 96. The end of the bending frame 973 that feeds in the direction of the lifting plate 96 will push the side plate on the target plate that is perpendicular to the center plate to bend 90° twice, so that the bent side plate fits against the bottom surface of the inner side of the square ring groove formed by multiple slots. After the 90° bend of the vertical side plate is completed, the pressure strip 971 is pushed downward, so that the L-shaped pressure plate 9753 fixed on the pressure strip 971 moves down to contact the inclined part on the corresponding top block 9752. The pressure strip 971 is then controlled to move downward to squeeze the top block 9752, so as to push the top block 9752 towards the lifting plate 96 to squeeze the limiting member 2. During this process, the feed end of the pushed top block 9752 will squeeze the corresponding stamping part, completing the punching action of the side plate after the second bend.

[0037] Furthermore, such as Figures 13-14 As shown, the stamping part includes an annular cylinder 9754 fixed to the top of the bending frame 973. A stamping head 9755 that movably passes through the bending frame 973 is sleeved inside the annular cylinder 9754. A connecting spring 9756 is fixed between the stamping head 9755 and the annular cylinder 9754.

[0038] Furthermore, the stamped part also includes a spiral groove 9757 formed inside the ring cylinder 9754. The top of the spiral groove 9757 is connected to a straight groove. A protrusion that is slidably connected inside the straight groove is fixed on the outside of the stamping head 9755. There are two spiral grooves 9757, which are centrally symmetrical about the central axis of the ring cylinder 9754. There are also two protrusions, which can ensure that the stamping head 9755 can perform stable vertical feeding. A tapping head 9758 for tapping internal threads is also fixed on the outside of the stamping head 9755.

[0039] It should be noted that when the connecting spring 9756 is in its natural state, the bottom surface of the punch head 9755 is exactly coplanar with the bottom surface of the straight plate, while the protrusion is located at the upper end of the straight groove. During the punching process, when the feed end of the pushed block 9752 contacts the upper end of the punch head 9755, the continued pushing of the block 9752 will compress the punch head 9755, causing it to move downwards. During this process, when the protrusion is in the straight groove... During the sliding process inside the groove, the bottom end of the downward-moving punch head 9755 punches a portion of the corresponding circular plate 9759 on the side plate and pushes the corresponding circular plate 9759 downward to compress the return spring. When the protrusion moves from the straight groove into the corresponding spiral groove 9757, the downward-moving punch head 9755 will rotate, thereby using the tapping head 9758 to tap the internal thread of the punched hole under the rotation of the punch head 9755, so that punching and tapping can be completed in one step.

[0040] Example 3: Refer to the appendix of the instruction manual. Figure 1 , Figure 11 and Figures 15-16 This embodiment is the third embodiment of the present invention. This embodiment differs from the second embodiment in that the bending and punching mechanism 97 further includes a clamping and positioning component 98 mounted on the support 93. The clamping and positioning component 98 includes cross grooves 981 located at the four corners of the top outer side of the support 93. Each cross groove 981 has a cross block 983 slidably connected inside it. A positioning block is fixedly mounted on the top of the cross block 983. The positioning block consists of a right-angled triangular prism and an L-shaped rod that fixes the cross block 983 to the right-angled triangular prism. One side of the cross block 983 is connected to the corresponding cross groove 981. A connecting spring 984 is fixed between the inner cavity end faces. During the elastic deformation of the connecting spring 984, the cross block 983 never disengages from the corresponding cross groove 981. A push bar 985 is fixed on the other side of the cross block 983. A guide frame 986 fixed on the support 93 is movably sleeved on the outside of the push bar 985. A top bar 982 corresponding to each push bar 985 is fixed on the top of the horizontal plate 91. The ends of the push bar 985 and the top bar 982 that are close to each other are set as inclined surfaces. The top of the top bar 982 moves through the horizontal plate 92 and the support 93 in sequence.

[0041] Furthermore, both sides of the horizontal plate 2 82 and the horizontal plate 4 92 are fixedly provided with ear blocks 99, and an elastic element 5 910 is connected between the two ear blocks 99 that are correspondingly arranged in the vertical direction. The elastic element 5 910 includes an annular column fixed to the bottom end of the ear block 99 on the horizontal plate 2 82 and a cylindrical column 5 fixed to the top end of the ear block 99 on the horizontal plate 4 92. The top end of the cylindrical column 5 is movably inserted into the corresponding annular column, and a straight spring 7 is sleeved on the outside of the cylindrical column to fix and connect the annular column and the ear block 99 on the horizontal plate 4 92. The elastic coefficient of the straight spring 7 is greater than that of the straight spring 3, ensuring that the placement position of the target board on the support part 9 is corrected first during the downward movement of the pressing part 8, ensuring the forming quality of the cabinet door 3. The elastic coefficient of the straight spring 7 is less than that of the straight spring 1, so that during the downward movement of the pressing part 8, the horizontal plate 4 92 moves down first, and then the horizontal plate 2 82 and the horizontal plate 1 81 continue to move down synchronously.

[0042] It should be noted that during the downward movement of the pressing part 8, the downward-moving horizontal plate 2 82 will squeeze the elastic element 5 910, and the force exerted by the elastic element 5 910 on the horizontal plate 4 92 will push the horizontal plate 4 92 downward to squeeze the elastic element 3 94, thereby triggering the clamping and positioning assembly 98 to complete the automatic correction of the target board position. During this process, as the horizontal plate 4 92 passively moves downward, the push bar 985 will move downward synchronously to the state of contact with the top bar 982. As the horizontal plate 4 92 continues to move downward, the top bar 982 will push the push bar 985, allowing the push bar 985 to push the cross block 983 closer to the target board. The right-angled triangular prism that moves synchronously with the cross block 983 will push the target board, thereby using four right-angled triangular prisms that move synchronously to complete the automatic correction of the target board and ensure the forming quality of the cabinet door.

[0043] The working principle of the above forming device is as follows: to form the die-cut into the shape shown above. Figure 17After the target plate shown is placed on top of the support 93 on the support part 9, the cylinder 7 is activated to push the pressing part 8 downward. During the downward movement of the pressing part 8, firstly, the passively descending horizontal plate 4 92 squeezes the elastic element 3 94. During the passive downward movement of the horizontal plate 4 92, the top bar 982 pushes the corresponding push bar 985, causing the push bar 985 to push the right-angled triangular prism and the cross block 983 to move towards the target plate simultaneously. This is achieved by using four right-angled triangular prisms that move centripetally in sync to complete the automatic correction of the target plate. Then, the horizontal plate 2 82 and the horizontal plate 1 81 continue to move downward synchronously. After the slider 1 84 and the slider 2 85 come into contact with the target plate during the downward movement, the reverse force of the target plate pushes the slider 1 84 and the slider 2 85 to move obliquely upward. After the slider 1 84 and the slider 2 85 move upward to their maximum extent, the pressing part 8... The pressure plate continues to move downward to cooperate with the sinker to complete a 90° bend of the target plate. Then, the pressure plate 8 continues to move downward, so that after the lifting plate 96 moves to its maximum extent, the downward pressure bar 971 pushes the corresponding bending frame 973 to approach the target plate along the direction of the cylinder four. The feeding bending frame 973 completes a second 90° bend of the vertical side plate after the first bend. Then, the pressure plate 8 continues to move downward, so that the downward L-shaped pressure plate 9753 squeezes the top block 9752. The top block 9752 is pushed towards the lifting plate 96 to squeeze the limiting member two. The pushed top block 9752 squeezes the punch head 9755 downward. The bottom end of the downward punch head 9755 punches the part of the corresponding round plate 9759 on the side plate. The tapping head 9758, under the rotation of the punch head 9755, taps the internal thread of the punched hole, so that punching and tapping are completed in one step. Conversely, after the cabinet door is stamped, as the cylinder 7 drives the lower pressing part 8 to move upward, the stamping head 9755 will reset as the L-shaped pressure plate 9753 releases the pressure on the top block 9752. Then, as the pressure strip 971 releases the pressure on the corresponding bending frame 973, the bending frame 973 will reset under the action of the limiting part 974. Next, as the lower pressing part 8 continues to move upward, the slider 1 84 and slider 2 85 will gradually retract inward and then detach from the formed cabinet door 3. The cabinet door 3 will be pushed out of the groove under the passive lifting action of the lifting plate 96, realizing rapid automatic demolding.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A metering cabinet, characterized in that, The metering cabinet includes: Metering cabinet housing (1), the metering cabinet housing (1) is equipped with a smart energy meter (2), the smart energy meter (2) is equipped with a control module and a detection and metering module, a user operation module, a data storage module and a data communication module connected to the control module; The front end of the metering cabinet housing (1) is hinged with a cabinet door (3), and the inner side of the cabinet door (3) is provided with multiple screw holes (4) for installing flame-retardant insulating baffles.

2. A cabinet door forming device for a metering cabinet, wherein the forming device is used to produce and form the cabinet door (3) of the metering cabinet as described in claim 1, characterized in that, The molding apparatus includes: The base (5) has a bracket (6) fixedly installed on one side of the top center of the base (5). A cylinder (7) is fixedly installed on the inner side of the top of the bracket (6). A pressing part (8) is fixedly connected to the telescopic end of the cylinder (7). A supporting part (9) is fixedly installed at the top of the base (5) corresponding to the pressing part (8). The pressing part (8) includes a horizontal plate one (81), a horizontal plate two (82), an elastic member one (86) connecting the horizontal plate one (81) and the horizontal plate two (82), and a square truncated pyramid (83) fixedly disposed at the bottom of the horizontal plate two (82). A slider one (84) and a slider two (85) are slidably installed between the square truncated pyramid (83) and the horizontal plate two (82). The supporting part (9) includes a horizontal plate three (91), a horizontal plate four (92), an elastic element three (94) connecting the horizontal plate three (91) and the horizontal plate four (92), and a support (93) fixed on the top of the horizontal plate four (92). A bending and punching mechanism (97) for forming cabinet doors is provided between the horizontal plate one (81) and the horizontal plate four (92).

3. The cabinet door forming device for a metering cabinet according to claim 2, characterized in that, There are four sliders (84) and four sliders (85), and they are alternately distributed around the square truncated pyramid (83). Each slider (84) and slider (85) has a T-slot on the side facing the square truncated pyramid (83). T-strips that are adapted to the corresponding T-slots are fixed at the four sides and four corners of the square truncated pyramid (83). The T-strips are slidably connected to the inside of the corresponding T-slots.

4. The cabinet door forming device for a metering cabinet according to claim 3, characterized in that, A cross groove (87) is provided on the horizontal plate 2 (82) at the position corresponding to each slider 1 (84) and slider 2 (85). An elastic element 2 (88) is slidably connected inside each cross groove (87). The bottom end of each elastic element 2 (88) is fixedly connected to the upper end of the corresponding slider 1 (84) and slider 2 (85).

5. The cabinet door forming device for a metering cabinet according to claim 2, characterized in that, The top of the support (93) is provided with a sinking groove, and a lifting plate (96) is movably sleeved inside the sinking groove. An elastic element (95) is connected between the bottom end face of the lifting plate (96) and the bottom end face of the inner cavity of the sinking groove.

6. The cabinet door forming device for a metering cabinet according to claim 2, characterized in that, The bending and punching mechanism (97) includes a side plate (972) fixedly disposed on the top of the horizontal plate four (92) and a pressure strip (971) fixedly disposed on the bottom of the horizontal plate one (81) corresponding to the side plate (972). The bottom end of the pressure strip (971) movably passes through the horizontal plate two (82). A bending frame (973) is between the side plate (972) and the support (93), and a limiting member (974) movably passes through the corresponding bending frame (973) is also connected between the side plate (972) and the support (93).

7. The cabinet door forming device for a metering cabinet according to claim 6, characterized in that, The bending frame (973) is fixedly provided with a punching assembly (975) at the top. The punching assembly (975) includes an L-shaped pressure plate (9753) fixed on the pressure strip (971) and a guide frame (9751) fixed on the top of the bending frame (973). A top block (9752) is movably inserted through the guide frame (9751). A limiting member 2 is connected between the end of the top block (9752) near the corresponding side plate (972) and the guide frame (9751). A stamping part is installed at the end of the bending frame (973) away from the corresponding side plate (972). A column hole is also opened on the slider 2 (85) that is directly opposite to the corresponding stamping part. A circular plate (9759) is movably fitted inside the column hole. A return spring is fixedly connected between the circular plate (9759) and the bottom end face of the inner cavity of the column hole.

8. The cabinet door forming device for a metering cabinet according to claim 7, characterized in that, The stamped part includes an annular cylinder (9754) fixed to the top of the bending frame (973), and a punch head (9755) that movably passes through the bending frame (973) is sleeved inside the annular cylinder (9754). A connecting spring (9756) is fixed between the punch head (9755) and the annular cylinder (9754). The stamped part also includes a spiral groove (9757) opened inside the ring cylinder (9754), the top of the spiral groove (9757) is connected to a straight groove, a protrusion that is slidably connected to the inside of the straight groove is fixed on the outside of the stamping head (9755), and a tapping head (9758) for tapping internal threads is also fixed on the outside of the stamping head (9755).

9. The cabinet door forming device for a metering cabinet according to claim 2, characterized in that, Both sides of the second (82) and the fourth (92) are fixedly provided with ear blocks (99), and an elastic element (910) is connected between the two ear blocks (99) that are correspondingly arranged in the vertical direction.

10. The cabinet door forming device for a metering cabinet according to claim 2, characterized in that, The bending and punching mechanism (97) also includes a clamping and positioning assembly (98) installed on the support (93). The clamping and positioning assembly (98) includes cross grooves (981) opened at the four corners of the top of the outer side of the support (93). Each cross groove (981) is slidably connected with a cross block (983). A positioning block is fixedly provided on the top of the cross block (983). A connecting spring (984) is fixedly provided between one side of the cross block (983) and the inner end face of the corresponding cross groove (981). A push bar (985) is fixedly provided on the other side of the cross block (983). A guide frame (986) fixed on the support (93) is movably sleeved on the outside of the push bar (985). A top bar (982) corresponding to each push bar (985) is fixedly provided on the top of the horizontal plate (91). The top of the top bar (982) moves through the horizontal plate (92) and the support (93) in sequence.

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