Stamping system and method for casing of IoT smart gas meter

Abstract

The present invention discloses a system and method for stamping and forming an IoT smart gas meter shell, which includes, in sequence, a first trimming device for cutting a sheet into a size required for stretching; a stretching assembly for stamping a sheet and stretching the sheet into a shell; a second trimming device for trimming the shell; a first side punching device for punching holes on the side of the shell; and a shaping device for shaping the shell. The purpose of the present invention is to provide a system and method for stamping and forming an IoT smart gas meter shell, so as to solve the problems of low automation and low efficiency in the production and forming of an IoT smart gas meter shell in the prior art, and to achieve the purpose of fully automatic production and forming of a gas meter shell.

Description

Technical Field

[0001] The present invention relates to the field of gas meter shell processing, and in particular to a system and method for stamping and forming a shell of an Internet of Things smart gas meter. Background Art

[0002] The gas meter housing is an important component that covers and protects the internal components of the gas meter. With the development of technology, the material network smart gas meter has gradually come into people's sight. It has the advantages of high automation and no need for manual meter reading. In the existing technology, the production process of the IoT smart gas meter housing is complicated, the automation level is low, and a lot of manual operation is required during the production process, resulting in low production efficiency. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, a system and method for stamping and forming the casing of an IoT smart gas meter are provided to realize automatic production and forming of the casing of the gas meter.

[0004] The present invention is achieved through the following technical solutions:

[0005] The IoT smart gas meter housing stamping system includes:

[0006] The first cutting device is used to cut the sheet into the size required for stretching;

[0007] A stretching assembly, comprising a plurality of sequentially distributed stretching devices, used for punching a sheet and stretching the sheet into a shell;

[0008] a second trimming device, used for trimming the shell;

[0009] A first side punching device, used for punching holes on the side of the shell;

[0010] A shaping device is used for shaping the shell.

[0011] In view of the low degree of automation and low efficiency of the production and forming of the shell of the IoT smart gas meter in the prior art, the present invention proposes a stamping and forming system for the shell of the IoT smart gas meter. The system can directly process the material plate into the gas meter shell, significantly improving the efficiency of production and processing. Specifically, the material plate is first cut by the first trimming device to cut the continuous material plate into the size required for the shell stretching, and the size must be greater than the total surface area of ​​the gas meter shell to be formed. The material plate after cutting by the first trimming device is still in the shape of a flat plate, and then it is stamped and formed by the stretching component so that the material plate is stretched into the shape of a shell, that is, the material plate is punched into a frame-like structure with one side open, thereby forming the inner cavity of the gas meter shell. Then, the second trimming device is used to trim the already formed shell to form the required size of the outer edge of the product. Then, the side of the shell is punched by the first side punching device to facilitate the installation of the joint at the punching hole later. Finally, the overall size of the shell is shaped by the shaping device, and burr trimming is achieved at the same time. In this application, the semi-finished product can be transferred between two adjacent workstations by any existing transmission method. After the material plate passes through the workstations of this system in turn, the final finished product of the gas meter shell can be obtained. Therefore, the automation level of this application is extremely high and the production and processing efficiency of the IoT smart gas meter is significantly improved. The stretching assembly in this application includes one or more stretching devices. When multiple stretching devices are used, the defect of excessive load in one stretching forming can be avoided, the stretching amount each time can be reduced, and the plate can be gradually stretched into the desired shell shape.

[0012] Furthermore, it also includes a second side punching device located between the stretching assembly and the second trimming device, and the second side punching device is used to form a pattern on the side of the shell. After the stretching and shell forming are completed, the second side punching device punches out the required pattern on the side of the shell, and then enters the second trimming device for trimming. The pattern in this solution can be selected from the corresponding punch according to actual needs. For example, the user can set any information such as trademarks, logos, gas flow direction marks or model parameters on the side of the shell.

[0013] Furthermore, the stretching assembly includes a first stretching device, a second stretching device, and a third stretching device, which are sequentially distributed. The first stretching device, the second stretching device, and the third stretching device are used for primary stretching, secondary stretching, and final stretching, respectively. For the outer shell of the material network smart gas meter, its inner cavity is deep, and it is difficult to process and form it in one time by traditional stamping methods. Therefore, the stretching assembly of this scheme includes three groups of stretching devices. First, the material sheet is stretched initially by the first stretching device, then stretched secondary by the second stretching device, and finally stretched finally by the third stretching device.

[0014] Preferably, the depths of the first stretching, the second stretching and the final stretching are gradually increased until the final stretching depth reaches the required depth of the inner cavity of the gas meter housing. The first stretching, the second stretching and the final stretching are all achieved by stamping.

[0015] Furthermore, the first trimming device, the stretching assembly, the second trimming device, the first side punching device, and the shaping device all include an upper die and a lower die, and all the upper dies are raised and lowered synchronously; the upper die includes a concave die, and the lower die includes a convex die that matches the corresponding upper die. In this solution, all workstations use the upper die as a concave die and the lower die as a convex die for stamping, so the open end of the produced shell faces downward. Among them, all the upper dies are raised and lowered synchronously, so that all the workstations act synchronously to form an assembly line operation mode. After each workstation completes the action, the semi-finished shell is transferred to the next workstation in turn.

[0016] Furthermore, the first trimming device and the second trimming device both include a cutting edge on the upper die and a support on the lower die, and the support matches the corresponding cutting edge. The first trimming device and the second trimming device are moved downward through the upper die, and the trimming operation is performed by the cutting edge. The support on the lower die matches the cutting edge on the upper die, and is used to support the cut sheet or semi-finished shell.

[0017] Furthermore, the upper die of the stretching assembly includes a first die, and the lower die of the stretching assembly includes a first punch. The first punch includes a first lower die seat, a pressure plate, and an ejector. The ejector is fixed on the first lower die seat, and the pressure plate is sleeved outside the ejector. The pressure plate and the first lower die seat are lifted and lowered in coordination; when the first die moves downward, the pressure plate is pushed to move downward. In this solution, the first lower die seat remains stationary, and the pressure plate can move upward and downward thereon. When the sheet to be processed is placed on the pressure plate, the first die moves downward, pushing the sheet and the pressure plate to move downward, and the ejector arranged on the first lower die seat supports the middle part of the sheet, and the edge part of the sheet continues to move downward with the first die, and is punched around the first punch, thereby forming a shell structure with the open end facing downward.

[0018] Furthermore, the inner surface of the first die that matches the ejector is provided with a rounded corner; a recessed area that matches the ejector is provided in the middle of the first die, and the recessed area is provided with a rounded corner that matches the end surface of the ejector. When the rounded corner of the inner surface of the recessed area matches the ejector, there is a gap to ensure easy demoulding after stretching.

[0019] Furthermore, the upper molds of the first side punch device and the second side punch device both include a second die and a push piece; the lower molds of the first side punch device and the second side punch device both include a second lower mold base, a second punch fixed on the second lower mold base and matching with the second die, and also include a slider base fixed on the second lower mold base and a slider slidably connected to the slider base; a side punch is provided on the side of the slider facing the direction of the second punch; when the upper molds of the first side punch device and the second side punch device move downward, the second die is sleeved on the corresponding second punch, and the push piece pushes the slider to slide in the direction of the second punch. In order to ensure the consistency of the shell forming die table, the prior art still uses punching molds distributed up and down for construction at the side punching station, which requires manpower or machinery to flip the preformed shell before the side punching station so that its side faces upward, and this process seriously affects the forming efficiency of the gas meter shell.

[0020] In this solution, the first side punch device and the second side punch device are also upper and lower mold parts, so first of all, the mold consistency of the entire system can be ensured. The upper mold includes a second die and a push piece. The second die is used to cooperate with the second punch on the lower mold assembly, and the push piece is used to cooperate with the slider on the lower mold assembly. The slider slides on the slider seat, and the slider seat is fixed on the lower mold seat. In this solution, a side punch is set on the slider and is directed to the direction where the second punch is located. When the slider is pushed by the push piece to slide, the side punch can be driven to move in the direction where the second punch is located. When this solution is used, there is no need to manually or mechanically flip the shell of the gas meter to keep the open end facing down after the previous step of stretching and trimming, and directly cover it on the second punch in the lower mold assembly. After that, the upper mold assembly quickly descends, so that the second die is covered outside the shell, and at the same time, the push piece quickly pushes the slider to slide in the direction where the second punch is located, driving the side punch to act on the side of the shell instantly, so as to realize the side punching process. Moreover, after the work is completed, the shell of this solution still maintains the open end facing downward, so it can be directly taken out for the next shaping operation without flipping and resetting again. Therefore, compared with the existing technology, in the process of machining and forming the gas meter shell, this solution can omit two flipping of the semi-finished shell with one side punch, which significantly reduces manpower operations and improves processing efficiency.

[0021] Furthermore, a side punch clamp is provided on the side of the slider facing the direction where the second punch is located, and the side punch is installed on the side punch clamp; a plurality of through holes are provided on the side punch clamp, and a side punch passes through each through hole; an elastic member cooperating with the corresponding side punch is also provided in the through hole, and when the side punch moves toward the direction where the second punch is located, the elastic member is deformed; a reset device is also included, and when the upper mold assembly moves upward and breaks away from contact with the lower mold assembly, the reset device resets the slider; a retreat mechanism is also included, and the second punch includes a main body with a wedge-shaped side surface, and a male slider slidably matched with the wedge-shaped side surface of the main body, and the male slider is directly opposite to the side punch; the retreat mechanism is used to drive the main body to rise and fall.

[0022] This solution first provides an installation position for the side punch through the side punch splint, which is convenient for disassembly and ensures its stable connection; secondly, it prevents the side punch from directly contacting the slider, so that the side punch splint acts as a buffer between the side punch and the slider, preventing the instantaneous large reaction force of the side punch from directly acting on the slider during operation, causing the slider to be easily deformed and damaged. The through holes on the side punch splint correspond to the side punches one by one, and an elastic part 1 is matched between each side punch and its corresponding through hole. When the side punch moves in the direction of the second punch, that is, when the slider is pushed by the push piece to work, the elastic part 1 is deformed. During the entire punching process, the elastic part 1 cannot be reset due to the restriction of the push piece and always remains in a deformed state. When the punching operation is completed and the upper mold assembly moves upward, the restriction of the push piece on the slider is released, and the elastic part 1 can also be reset freely, which can drive each side punch to reset and synchronously drive the slider to reset.

[0023] After the side punching operation is completed, the upper die moves upward, the second concave die is separated from the shell, and the push piece is separated from the slider. At this time, the upper die is completely separated from the corresponding lower die, and the longitudinal restriction on the processed shell is also lifted. After that, the slider is reset by the reset device, that is, the slider is slid to the workstation before the upper die assembly moves downward. During this process, the side punch is reset synchronously and withdraws from the punched side punch, thereby lifting the restriction on the outside of the processed shell. This step is not only conducive to taking out the shell for the next operation, but also can prepare for the side punching operation of the next shell. In addition, after the side punching operation is completed, the punching formed on the surface of the shell will be slightly concave, and it is not easy to be automatically removed from the second punch by machinery in this state. For this reason, this scheme sets a retreat structure, and sets the second punch as a split structure. That is, the second punch includes a main body and a male slider, and the male slider is located at one end of the second punch facing the direction of the side punch. The main body of the second punch is provided with a wedge-shaped side surface for sliding cooperation with the male slider, and inevitably, the male slider can slide on the wedge-shaped side surface. In this solution, when the punching operation is completed and the slider and the side punch retreat and reset, the retreat mechanism drives the main body to rise and fall, so that the male slider can be retracted inward a certain distance with the cooperation of the wedge-shaped side surface, thereby releasing the protruding part of the newly formed punched hole, thereby facilitating the removal of the outer shell by a robotic arm or any other existing method; after the outer shell is taken out, the retreat mechanism drives the main body to reset, and simultaneously drives the male slider to reset.

[0024] A stamping method for an IoT smart gas meter housing, comprising:

[0025] Passing the material sheet through a first trimming device to cut the material sheet into a size required for stretching;

[0026] The cut sheet is passed through a stretching assembly and stretched by a stamping method, so that the sheet is stretched into a shell with the concave surface facing downward;

[0027] Passing the shell through a second side punching device to form a pattern on the side of the shell by punching;

[0028] The shell is passed through a second trimming device to trim the shell to form a desired size of the product;

[0029] The shell is passed through a first side punching device to punch holes on the side of the shell by a punching method to form a joint installation hole;

[0030] The shell is passed through a shaping device to give the shell a final shaping.

[0031] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0032] 1. The stamping forming system and method of the IoT smart gas meter shell of the present invention can obtain the final finished product of the gas meter shell after the material plate passes through the various workstations of the system in sequence. Therefore, the application has a very high degree of automation and significantly improves the production and processing efficiency of the IoT smart gas meter.

[0033] 2. The system and method for stamping the casing of an IoT smart gas meter of the present invention, when the material sheet to be processed is placed on the pressing plate, the first die moves downward to push the material sheet and the pressing plate downward, and the ejector arranged on the first lower die seat supports the middle part of the material sheet, and the edge part of the material sheet continues to move downward with the first die and is stamped around the first punch, thereby forming a casing structure with the open end facing downward. Compared with the traditional stamping method, this scheme can form a deeper inner cavity of the gas meter casing.

[0034] 3. The stamping forming system and method of the casing of the IoT smart gas meter of the present invention can realize the side punching process by opening holes on the side of the casing of the gas meter without manually or mechanically flipping the casing on the basis of ensuring the consistency of the die table of the entire forming system; and after the side punching work is completed, the casing still maintains the open end facing downward, so it can be directly taken out for the next operation. Compared with the prior art, the present application can omit at least two flips of the semi-finished product during the machining process of the gas meter casing, which significantly improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0036] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention;

[0037] Figure 2 It is a side view of a specific embodiment of the present invention;

[0038] Figure 3 is a perspective view of a first trimming device in a specific embodiment of the present invention;

[0039] Figure 4 It is a schematic structural diagram of a first stretching device in a specific embodiment of the present invention;

[0040] Figure 5 is a side view of a second trimming device in a specific embodiment of the present invention;

[0041] Figure 6 It is a side view of the first side punch device in a specific embodiment of the present invention;

[0042] Figure 7 A top view of a second male mold in a specific embodiment of the present invention;

[0043] Figure 8 It is a perspective view of a shaping device in a specific embodiment of the present invention.

[0044] Marks and corresponding parts names in the attached drawings:

[0045] 1-first trimming device, 2-first stretching device, 3-second stretching device, 4-third stretching device, 5-second side punch device, 6-second trimming device, 7-first side punch device, 8-shaping device, 9-cutting edge, 10-support, 11-first concave die, 12-first lower die seat, 13-pressing plate, 14-ejector, 15-plate, 101-second concave die, 102-push member, 201-second lower die seat, 202-inclined surface, 203-slider seat, 204-slider, 205-side punch, 206-side punch clamp, 209-retreat mechanism, 210-second punch, 2101-main body, 2102-male slider. DETAILED DESCRIPTION

[0046] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0047] Embodiment 1:

[0048] like Figures 1 to 8 The shown IoT smart gas meter shell stamping and forming system includes: a first trimming device 1, used to cut the material sheet into the required size for stretching; a stretching assembly, used to stamp the material sheet and stretch the material sheet into a shell; a second trimming device 6, used to trim the shell; a first side punching device 7, used to punch the side of the shell; a shaping device 8, used to shape the shell. In this embodiment, the various devices and components are distributed in sequence to form an assembly line, and the material sheet needs to be processed through each device and component in a specified order. The material sheet or semi-finished shell is transferred between different stations of each device and component by any existing transmission device. Preferably, the above-mentioned transmission device can use a conveyor belt, and each station is equipped with a mechanical arm for taking and placing the semi-finished shell.

[0049] When this embodiment is used, the material sheet is first cut by the first trimming device 1, and the continuous material sheet is cut into the size required for the shell stretching, and the size must be larger than the total surface area of ​​the gas meter shell to be formed. The material sheet after cutting by the first trimming device 1 is still in the shape of a flat plate, and then it is stamped and formed by the stretching assembly so that the material sheet is stretched into the shape of a shell, that is, the material sheet is punched into a frame-like structure with one side open, thereby forming the inner cavity of the gas meter shell. After that, the second trimming device 6 is used to trim the already formed shell to form the required size of the outer edge of the product. Then, the first side punching device 7 is used to punch holes on the side of the shell to facilitate the installation of the joint at the punching point later. Finally, the shaping device 8 is used to shape the overall size of the shell, and burrs are trimmed at the same time.

[0050] The stretching assembly in this embodiment can be one stretching device, or two or more stretching devices can be used. The specific number of stretching devices is adaptively set according to the product model, type, size, and even workshop layout of different shells, and it is only necessary to stretch the material sheet to the required shell size after passing through one or more stretching devices.

[0051] Preferably, when multiple stretching devices are used, the defect of excessive load on a single stretching device caused by one-time stretching can be avoided, the stretching amount each time can be reduced, and the sheet can be gradually stretched into the desired shell shape.

[0052] Embodiment 2:

[0053] On the basis of Example 1, it also includes a second side punch device 5 located between the stretching assembly and the second trimming device 6, and the second side punch device 5 is used to form a pattern on the side of the shell. The stretching assembly includes a first stretching device 2, a second stretching device 3, and a third stretching device 4 distributed in sequence, and the first stretching device 2, the second stretching device 3, and the third stretching device 4 are used for primary stretching, secondary stretching, and final stretching, respectively. The first trimming device 1, the stretching assembly, the second trimming device 6, the first side punch device 7, and the shaping device 8 all include upper molds and lower molds, and all upper molds are raised and lowered synchronously; the upper mold includes a concave mold, and the lower mold includes a convex mold matching the corresponding upper mold.

[0054] In this embodiment, the first stretching device 2, the second stretching device 3, and the third stretching device 4 are used for primary stretching, secondary stretching, and final stretching, respectively. In the primary stretching, the upper die drives the punch downward as a whole, so that the punch is introduced into the hole on the outer edge of the corresponding punch on the lower die through clearance fit, so as to realize the preliminary punching of the material sheet into the shape of the shell; the action principles of the secondary stretching and the final stretching are the same as those of the primary stretching, in which the secondary stretching is used to process the fillet, that is, to reduce the fillet of the shell after the initial forming, and the tertiary stretching is used to deepen the stretching depth until the required shell depth dimension is reached after the final stretching is completed.

[0055] Preferably, the first trimming device 1 and the second trimming device 6 both include a cutting edge 9 located on the upper die and a support 10 located on the lower die, and the support 10 matches the corresponding cutting edge 9 .

[0056] In this embodiment, the first trimming device 1 is as follows Figure 3 As shown, the material plate 15 is placed on its support 10, and the cutting edge 9 includes two arc-shaped structures. The material plate required for each gas meter housing is cut twice by the two arc-shaped cutting edges 9. The cutting edge 9 in the second trimming device 6 is an integral blade, which realizes one-time trimming.

[0057] The forming method of this embodiment includes: passing the material sheet through a first trimming device 1 to cut the material sheet into the required size for stretching; passing the cut material sheet through a stretching assembly to stretch the material sheet into a shell; passing the shell through a second side punching device 5 to punch a logo on the side of the shell; passing the shell through a second trimming device 6 to trim the shell; passing the shell through a first side punching device 7 to punch holes on the side of the shell; passing the shell through a shaping device 8 to finally shape the shell.

[0058] Embodiment 3:

[0059] Based on any of the above embodiments, the stretching assembly in this embodiment includes a first stretching device 2, a second stretching device 3, and a third stretching device 4; the three groups of stretching devices are all composed of an upper die and its corresponding lower die, and their stamping depths gradually increase.

[0060] Preferably, for each set of stretching devices, the following structure is adopted: its upper die includes a first die 11, and the lower die of the stretching assembly includes a first punch, and the first punch includes a first lower die base 12, a pressure plate 13, and an ejector 14. The ejector 14 is fixed on the first lower die base 12, and the pressure plate 13 is sleeved outside the ejector 14, and the pressure plate 13 and the first lower die base 12 are lifted and lowered; when the first die 11 moves downward, the pressure plate 13 is pushed to move downward. The inner surface of the first die 11 that matches the ejector 14 is provided with a rounded corner; a recessed area that matches the ejector 14 is provided in the first die 11, and when the first die 11 moves downward, the ejector 14 is passively entered into the recessed area, and the edge of the recessed area is provided with a rounded corner that matches the end face of the ejector 14.

[0061] As a more preferred embodiment, the lifting and lowering coordination manner of the pressing plate 13 and the first lower die base 12 is: a guide column 16 is fixed on the first lower die base 12, and the top end of the guide column 16 moves through the pressing plate 13; the pressing plate 13 and the first lower die base 12 are also connected by a plurality of support members 17, the top end of the support member 17 is fixedly connected to the pressing plate 13, and the bottom end of the support member 17 moves through the first lower die base 12.

[0062] The shaping device 8 in this embodiment is also composed of an upper die and a lower die. A concave die is arranged on the upper die and a convex die is arranged on the lower die. When in use, the semi-finished product shell is buckled on the convex die, and the concave die under the upper die is sleeved outside the shell to achieve the final shaping and deburring operation.

[0063] Embodiment 4:

[0064] On the basis of any of the above embodiments, the first side punch device 7 and the second side punch device 5 in this embodiment have the same structure, and are both composed of an upper die and a lower die that match each other. The upper die includes a second die 101 and a push piece 102; the lower die of the first side punch device 7 and the second side punch device 5 both include a second lower die seat 201, a second punch 210 fixed on the second lower die seat 201 and matching the second die 101, and also include a slider seat 203 fixed on the second lower die seat 201, and a slider 204 slidably connected to the slider seat 203; a side punch 205 is provided on the side of the slider 204 facing the direction of the second punch 210; when the upper die of the first side punch device 7 and the second side punch device 5 moves downward, the second die 101 is sleeved outside the corresponding second punch 210, and the push piece 102 pushes the slider 204 to slide in the direction of the second punch 210. A side punch clamp 206 is provided on the side of the slider 204 facing the direction of the second punch 210, and the side punch 205 is installed on the side punch clamp 206; a plurality of through holes are provided on the side punch clamp 206, and a side punch 205 passes through each through hole; an elastic member 1 cooperating with the corresponding side punch 205 is also provided in the through hole, and when the side punch 205 moves in the direction of the second punch 210, the elastic member 1 is deformed; it also includes a reset device, and when the upper mold assembly moves upward and breaks away from the contact with the lower mold assembly, the reset device resets the slider 204; it also includes a retreat mechanism 209, and the second punch 210 includes a main body 2101 with a wedge-shaped side surface, and a male slider 2102 slidingly matched with the wedge-shaped side surface of the main body 2101, and the male slider 2102 is directly opposite to the side punch 205; the retreat mechanism 209 is used to drive the main body 2101 to rise and fall.

[0065] A more preferred embodiment is:

[0066] The slider 204 includes an inclined surface 202, which is located below the push member 102; the inclined surface 202 gradually moves away from the second punch 210 from top to bottom. The bottom of the push member 102 is provided with another inclined surface that matches the inclined surface 202 on the slider 204. When the push member 102 moves downward, its bottom inclined surface fits on the inclined surface 202 on the slider 204, so that as the push member 102 continues to move downward, the slider 204 is stably pushed to slide.

[0067] Embodiment 5:

[0068] On the basis of Example 4, in the first side punch device 7, there are two push members 102 and two slider seats 203; the two push members 102 are symmetrically distributed on both sides of the second die 101, the two slider seats 203 are symmetrically distributed on both sides of the second lower die seat 201, and sliders 204 are provided on the two slider seats 203, and the two sliders 204 correspond to the two push members 102 one by one. In the two sliders 204 of the first side punch device 7, a side punch 205 facing the direction of the second punch 210 is provided on one slider 204, and a baffle 208 facing the direction of the second punch 210 is provided on the other slider 204; and an elastic member 2 is connected between the baffle 208 and the adjacent slider 204.

[0069] In this embodiment, a second elastic member is connected between the baffle 208 and the adjacent slider 204. The second elastic member allows a gap to exist between the baffle 208 and the corresponding slider 204 in a natural state, providing an elastic buffer between the processed housing and the baffle, thereby avoiding hard contact between the baffle and the processed housing. The second elastic member is preferably a spring.

[0070] Preferably, the second side punch device 5 is similarly consistent in structure with the first side punch device 7, except for the punch style and stroke being different.

[0071] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. IoT smart gas meter housing stamping system, characterized by: Including, A first cutting device (1), used for cutting the sheet into the size required for stretching; A stretching assembly, comprising a plurality of sequentially distributed stretching devices, used for punching a sheet and stretching the sheet into a shell; A second trimming device (6), used for trimming the outer shell; A first side punching device (7), used for punching holes on the side of the housing; A shaping device (8) for shaping the shell; It also includes a second side punching device (5) located between the stretching assembly and the second trimming device (6), wherein the second side punching device (5) is used to form a pattern on the side of the shell; The first trimming device (1), the stretching assembly, the second trimming device (6), the first side punch device (7), and the shaping device (8) all include an upper die and a lower die, and all the upper dies are raised and lowered synchronously; the upper die includes a concave die, and the lower die includes a convex die matching the corresponding upper die; The upper die of the stretching component comprises a first die (11), the lower die of the stretching component comprises a first punch, the first punch comprises a first lower die base (12), a pressure plate (13), and an ejector (14), the ejector (14) is fixed on the first lower die base (12), the pressure plate (13) is sleeved outside the ejector (14), and the pressure plate (13) and the first lower die base (12) are lifted and lowered in coordination; when the first die (11) moves downward, the pressure plate (13) is pushed to move downward.

2. The IoT smart gas meter housing stamping system according to claim 1 is characterized in that: The stretching assembly comprises a first stretching device (2), a second stretching device (3), and a third stretching device (4) which are sequentially distributed. The first stretching device (2), the second stretching device (3), and the third stretching device (4) are used for primary stretching, secondary stretching, and final stretching, respectively.

3. The IoT smart gas meter housing stamping system according to claim 1 is characterized in that: The first trimming device (1) and the second trimming device (6) both comprise a cutting edge (9) located on an upper die and a support (10) located on a lower die, wherein the support (10) matches the corresponding cutting edge (9).

4. The IoT smart gas meter housing stamping system according to claim 1 is characterized in that: The inner surface of the first die (11) that matches the ejector (14) is provided with a rounded corner; the middle of the first die (11) is provided with a recessed area that matches the ejector (14), and the recessed area is provided with a rounded corner that matches the end surface of the ejector (14).

5. The IoT smart gas meter housing stamping system according to claim 1 is characterized in that: The upper dies of the first side punch device (7) and the second side punch device (5) both comprise a second die (101) and a push piece (102); the lower dies of the first side punch device (7) and the second side punch device (5) both comprise a second lower die seat (201), a second punch (210) fixed on the second lower die seat (201) and matching the second die (101), and also comprise a slider seat (203) fixed on the second lower die seat (201), and a slider (204) slidably connected to the slider seat (203); a side punch (205) is provided on one side of the slider (204) facing the direction where the second punch (210) is located; when the upper dies of the first side punch device (7) and the second side punch device (5) move downward, the second die (101) is sleeved outside the corresponding second punch (210), and the push piece (102) pushes the slider (204) to slide in the direction where the second punch (210) is located.

6. The IoT smart gas meter housing stamping system according to claim 5 is characterized in that: A side punching plate (206) is provided on the side of the slider (204) facing the direction of the second punch (210), and the side punch (205) is installed on the side punching plate (206); a plurality of through holes are provided on the side punching plate (206), and a side punch (205) passes through each through hole; an elastic member 1 that matches the corresponding side punch (205) is also provided in the through hole, and when the side punch (205) moves in the direction of the second punch (210), the elastic member 1 is deformed; It also includes a reset device, which resets the slider (204) when the upper mold assembly moves upward and breaks away from the contact with the lower mold assembly; It also includes a retreat mechanism (209), wherein the second punch (210) includes a main body (2101) with a wedge-shaped side surface, and a male slider (2102) slidably matched with the wedge-shaped side surface of the main body (2101), and the male slider (2102) is directly opposite to the side punch (205); the retreat mechanism (209) is used to drive the main body (2101) to rise and fall.

7. A stamping method for the IoT smart gas meter housing stamping system according to any one of claims 1 to 6, characterized in that: include: Passing the material sheet through a first trimming device (1) to cut the material sheet into the required size for stretching; The cut sheet is passed through a stretching assembly and stretched by a stamping method, so that the sheet is stretched into a shell with the concave surface facing downward; The shell is passed through a second side punching device (5) to form a pattern on the side of the shell by punching; The outer shell is passed through a second trimming device (6) to trim the outer shell to form the required size of the product; The shell is passed through a first side punching device (7) to punch holes on the side of the shell by a punching method to form a joint installation hole; The shell is passed through a shaping device (8) to perform final shaping on the shell.

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