An automatic riveting production system for water heater covers

By designing an automatic riveting production system for water heater masks, an automatic shaping, positioning, and riveting of water heater masks is achieved using a material placement platform, a feeding device, and a material picking robot. This solves the problems of complex and inefficient riveting processes in existing technologies, and improves production efficiency and yield.

CN116603941BActive Publication Date: 2026-05-26HUNAN CHUANGYAN IND TECH RES INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUNAN CHUANGYAN IND TECH RES INST CO LTD
Filing Date
2023-04-12
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing water heater cover riveting process is complex, involves many manual intervention steps, and has inaccurate positioning, resulting in low yield and low efficiency.

Method used

Design an automatic riveting production system for water heater masks, which adopts a material placement platform, feeding device, positioning fixture, riveting equipment and material handling robot to realize automatic shaping, positioning and riveting of water heater masks, reducing manual operation.

Benefits of technology

It has enabled automated continuous production of water heater covers, improving production efficiency and yield, and reducing manual labor intensity and the generation of defective products.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses an automatic riveting production system for water heater masks, relating to the field of automated water heater production technology. It includes a material placement platform with riveting equipment on each of its adjacent sides and feeding devices on the other adjacent sides. A manual feeding position is provided between the two feeding devices. Each feeding device includes a support and a positioning fixture. The riveting equipment includes a riveting machine, a material handling robot, and a material handling hand. Through the cooperation of these components, automatic riveting of the water heater masks is achieved. During the riveting operation, only one worker is needed to feed materials to both riveting machines, while also having spare time to arrange the riveted masks on the material placement platform. This enables continuous, seamless, and automated production of water heater masks, greatly improving production efficiency. The operation is simple for workers, effectively preventing the production of defective products.
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Description

Technical Field

[0001] This invention relates to the field of automated water heater production technology, and in particular to an automated riveting production system for water heater covers. Background Technology

[0002] Currently, the water heater cover includes a main body and side panels. The main body includes a first connecting plate and two second connecting plates, which are respectively located on both sides of the first connecting plate to make the main body U-shaped. The end of the main body has connecting ears for riveting to the side panels. When riveting the connecting ears to the side panels, the side panels must be placed inside the main body and aligned with the connecting ears. Before riveting, further steps are required. The second connecting plates on both sides of the main board of the water heater cover are shaped to fit against the side plate of the water heater cover so that the connecting ears can be positioned at the riveting position. The existing riveting process of the water heater cover involves manual assembly, followed by shaping the water heater cover into a welding state through a complex shaping and positioning structure, and then manually moving the entire shaping and positioning structure to the riveting machine. The operation is complicated, involves many manual intervention steps, and is prone to mispositioning, which leads to a low yield rate. In addition, the manual handling work is extensive and inefficient. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the prior art. To this end, embodiments of the present invention provide an automatic riveting production system for water heater masks, which realizes automatic shaping, positioning, and riveting of water heater masks, thereby improving production yield and efficiency.

[0004] An automatic riveting production system for water heater covers according to an embodiment of the present invention includes a material placement platform. Riveting devices are respectively arranged on both adjacent sides of the material placement platform, and feeding devices are respectively arranged on the other adjacent sides of the material placement platform. A manual feeding position is provided between the two feeding devices. Each feeding device includes a support and a positioning fixture. The positioning fixture is slidably disposed on the support so that it can reciprocate between the riveting devices and the manual feeding position. The positioning fixture includes a positioning plate, a first positioning component, and a second positioning component. Both the first and second positioning components are mounted on the positioning plate. The positioning plate is used for... The positioning of the main body and side panels of the water heater cover is achieved through the cooperation of the first positioning component and the second positioning component, assembling the main body and side panels of the water heater cover into a water heater cover in a riveting state. The riveting equipment includes a riveting machine, a material handling robot, and a material handling hand. The material handling hand is installed on the moving end of the material handling robot. The material handling robot is used to drive the material handling hand back and forth between the positioning fixture, the riveting machine, and the material placement platform, so that the material handling hand can pick up the water heater cover in the riveting state and place it at the riveting machine for riveting, and also place the riveted water heater cover on the material placement platform.

[0005] According to an embodiment of the present invention, an automatic riveting production system for water heater covers includes a positioning plate having a first positioning surface, a second positioning surface, and a positioning part. The positioning part is used to position and define a notch in the side panel of the water heater cover. A positioning groove for limiting the side panel of the water heater cover is formed between the first positioning surface and the first positioning component. The second positioning surface is used to support and position the main panel of the water heater cover. After the side panel of the water heater cover and the main panel of the water heater cover are positioned on the positioning plate, the first positioning component and the second positioning component operate simultaneously. The first positioning component presses the side panel of the water heater cover against the first positioning surface and makes the connecting ears at the end of the main panel of the water heater cover fit against the side panel of the water heater cover. The second positioning component adjusts the connecting ears on both sides of the end of the main panel of the water heater cover to the riveting position of the side panel of the water heater cover.

[0006] According to an embodiment of the present invention, an automatic riveting production system for water heater covers includes a positioning plate comprising a first upright member, a second upright member, and a positioning member. A second positioning surface is disposed on the top surface of the first upright member. The top surface of the first upright member is raised in the middle to form the positioning portion. A second upright member is disposed on one side of the first upright member. A first positioning component is located on the other side of the first upright member. The second upright member is disposed on both sides of the positioning portion. Two sets of the first positioning components are provided. The first positioning components face the second upright member to form the positioning groove. The first positioning surface is disposed on the side of the second upright member facing the first positioning component. The top surface of the positioning member coincides with the second positioning surface.

[0007] According to an embodiment of the present invention, the automatic riveting production system for water heater covers includes a first positioning component comprising a first cylinder and a first pressing block. Under the action of the first cylinder, the first pressing block can move toward the first positioning surface. Two sets of second positioning components are provided, and the two sets of second positioning components are symmetrically arranged. The second positioning component includes a second cylinder and a second pressing block. The second cylinder drives the second pressing block to perform linear reciprocating motion, wherein the motion direction of the second pressing block is perpendicular to the motion direction of the first pressing block.

[0008] According to an embodiment of the present invention, the automatic riveting production system for water heater covers includes a material handling unit comprising a mounting plate, a first limiting module, a second limiting module, and a drive assembly. One side of the mounting plate is provided with a connecting portion capable of connecting to the material handling robot. The first limiting module and the second limiting module are both located on the other side of the mounting plate. The first limiting module includes two clamping members slidably disposed on the mounting plate. The drive assembly is used to drive the two clamping members to move closer or further apart, so that the first limiting module can clamp the main body of the water heater cover in the riveting state. The second limiting module is used to fix the side plate of the water heater cover in the riveting state.

[0009] According to an embodiment of the present invention, in the automatic riveting production system for water heater covers, two clamping components are symmetrically arranged. Each clamping component includes a third positioning surface and a limiting plate. The limiting plate is perpendicular to the third positioning surface. Multiple positioning posts are spaced apart on the facing sides of the two limiting plates, and the multiple positioning posts form a fourth positioning surface. A first suction cup is provided between two adjacent positioning posts. The first suction cup is used to adsorb the second connecting plate on the main board of the water heater cover, and the first suction cup is flush with the fourth positioning surface.

[0010] According to an embodiment of the present invention, an automatic riveting production system for water heater covers is provided on the mounting plate, wherein a second suction cup is provided for adsorbing a first connecting plate on the main board of the water heater cover, the second suction cup is located between two clamping members, and the second suction cup is flush with the third positioning surface.

[0011] According to an embodiment of the present invention, the automatic riveting production system for water heater covers includes a second limiting module comprising two mounting columns, each of which is provided with a fifth positioning surface, wherein the fifth positioning surface is embedded with a magnet for adsorbing the side plate of the water heater cover.

[0012] According to an embodiment of the present invention, the automatic riveting production system for water heater covers includes a driving component comprising a motor and a lead screw transmission structure. The lead screw transmission structure is disposed on the mounting plate and located between the mounting plate and the clamping member. The lead screw transmission structure includes a lead screw and a lead screw nut that can be fixedly connected to the clamping member. The motor is connected to the lead screw via a belt transmission structure. The motor is mounted on the side of the mounting plate where the connecting portion is provided.

[0013] According to an embodiment of the present invention, in the automatic riveting production system for water heater covers, the clamping member is slidably connected to the mounting plate via a guide rail slider structure, so that the two clamping members can move closer or further apart.

[0014] Based on the above technical solution, the embodiments of the present invention have at least the following beneficial effects: In use, the worker places the main body and side panels of the water heater cover on one of the feeding devices at the manual feeding position. After the main body and side panels are placed orderly on the positioning plate, the first and second positioning components operate simultaneously to position and shape the main body and side panels of the water heater cover into a riveting-ready state. Then, the worker pushes the entire positioning fixture to a designated position. Next, the worker places the main body and side panels of the water heater cover on another feeding device. During this process, a riveting device operates, and a material-picking robot drives the material-picking hand to grasp the water heater cover in the riveting-ready state at the designated position. Then, the grasped water heater cover in the riveting-ready state is brought to the riveting... At the receiving point, riveting operations are performed. After riveting is completed, the materials are transported to the material placement platform and placed. At this time, the operator has already loaded the main board and side panels of the water heater cover onto both feeding devices. This riveting equipment can immediately proceed to the riveting and forming of the next water heater cover, achieving a seamless connection of the water heater cover riveting. In addition, another riveting equipment is also performing riveting operations. The two riveting equipment work alternately. During one riveting operation, only one worker is needed to feed materials to both riveting equipment. At the same time, there is still spare time to arrange the riveted stacks on the material placement platform, realizing continuous seamless automatic production of water heater covers, which greatly improves production efficiency. Moreover, the initial feeding and placement of materials requires manual intervention, while the rest of the procedures are performed by the machine. The procedures that require manual operation are simple, effectively avoiding the generation of defective products. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a structural schematic diagram of an embodiment of the present invention. Figure 1 ;

[0017] Figure 2 This is a structural schematic diagram of an embodiment of the present invention. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the material feeding device in an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the positioning fixture in an embodiment of the present invention. Figure 1 ;

[0020] Figure 5 This is a schematic diagram of the positioning fixture in an embodiment of the present invention. Figure 2 ;

[0021] Figure 6 This is a schematic diagram of the riveting equipment in an embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of the material handling hand in an embodiment of the present invention. Figure 1 ;

[0023] Figure 8 This is a schematic diagram of the material handling hand in an embodiment of the present invention. Figure 2 ;

[0024] Figure 9 This is a schematic diagram of the material handling hand in an embodiment of the present invention. Figure 3 ;

[0025] Figure 10 This is a schematic diagram of the structure of the water heater cover in an embodiment of the present invention. Figure 1 ;

[0026] Figure 11 This is a schematic diagram of the structure of the water heater cover in an embodiment of the present invention. Figure 2 . Detailed Implementation

[0027] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0028] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0029] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0031] like Figure 10 and Figure 11As shown, the water heater cover 600 includes a main body 610 and a side panel 620. The main body 610 includes a first connecting plate 612 and two second connecting plates 613. The two second connecting plates 613 are respectively disposed on both sides of the first connecting plate 612, making the main body 610 U-shaped. The end of the main body 610 has connecting ears 611 for riveting with the side panel 620. When riveting the side panel 620 of the water heater cover, the side panel 620 of the water heater cover needs to be placed inside the main board 610 of the water heater cover and the side panel 620 of the water heater cover needs to be fitted with the connecting ear 611. Before riveting, the second connecting plates 613 on both sides of the main board 610 of the water heater cover need to be shaped to fit with the side panel 620 of the water heater cover so that the connecting ear 611 can be positioned at the riveting position. At present, there is no production line or production system that can realize automatic riveting of the water heater cover 600.

[0032] Therefore, such as Figure 1 and Figure 2 As shown, this embodiment of the invention provides an automatic riveting production system for water heater masks, including a material placement platform 100. Riveting devices are respectively arranged on the adjacent two sides of the material placement platform 100, and feeding devices 200 are respectively arranged on the other adjacent two sides of the material placement platform 100. A manual feeding position is arranged between the two feeding devices 200. Specifically, the material placement platform 100 is L-shaped, with one end of the material placement platform 100 extending to one of the riveting devices and the other end extending to the other riveting device, so that the riveting devices can place the riveted products on the material placement platform 100 for buffering.

[0033] Among them, such as Figure 3 As shown, the feeding device 200 includes a bracket 201 and a positioning fixture. The positioning fixture is slidably disposed on the bracket 201 so that the positioning fixture can reciprocate between the riveting equipment and the manual feeding position. The positioning fixture includes a positioning plate 210, a first positioning component and a second positioning component. The first positioning component and the second positioning component are both installed on the positioning plate 210. The positioning plate 210 is used for positioning the main body 610 and the side panel 620 of the water heater cover. Through the cooperation of the first positioning component and the second positioning component, the main body 610 and the side panel 620 of the water heater cover are assembled into the water heater cover 600 in the riveting state.

[0034] like Figure 6As shown, the riveting equipment includes a riveting machine 500, a material handling robot 300, and a material handling hand 400. The material handling hand 400 is installed on the moving end of the material handling robot 300. Specifically, the material handling robot 300 is a multi-axis industrial robot. The material handling robot 300 is used to drive the material handling hand 400 to move back and forth between the positioning fixture, the riveting machine 500, and the material placement platform 100, so that the material handling hand 400 can pick up the water heater cover 600 to be riveted and put it at the riveting machine 500 for riveting, and also put the riveted water heater cover 600 onto the material placement platform 100.

[0035] In use, the worker places the main body 610 and side panel 620 of the water heater cover on one of the feeding devices 200 at the manual feeding position. After the main body 610 and side panel 620 are placed in an orderly manner on the positioning plate 210, the first and second positioning components act simultaneously to position and shape the main body 610 and side panel 620 into a riveting state. Then, the worker pushes the entire positioning fixture to the designated position. Next, the worker places the main body 610 and side panel 620 on the other feeding device 200. During this process, the riveting equipment operates. The material handling robot 300 drives the material handling hand 400 to move to grab the water heater cover 600 in the riveting state at the designated position, and then brings the grabbed water heater cover 600 to the riveting machine 500 for further processing. After riveting, the materials are transported to the material placement platform 100 and placed. At this time, the workers have already loaded the main board 610 and side plate 620 of the water heater cover onto the two feeding devices 200. This riveting equipment can immediately proceed to the riveting of the next water heater cover 600, achieving seamless automatic riveting of the water heater cover 600. In addition, another riveting equipment is also performing riveting operations. The two riveting equipment work alternately. During one riveting operation, only one worker is needed to feed materials to both riveting equipment. At the same time, there is spare time to arrange the riveted stacks on the material placement platform 100, realizing continuous seamless automatic production of water heater covers 600, which greatly improves production efficiency. Moreover, the initial feeding and placement of materials requires manual intervention, while the rest of the procedures are performed by the machine. The procedures that require manual operation are simple, effectively avoiding the generation of defective products. In addition, the entire device has a relatively simple structure, occupies little space, and does not require workers to walk around, which greatly simplifies the automatic riveting production process of the water heater cover 600.

[0036] In the automated riveting process, the main body 610 of the water heater cover is U-shaped, and the side plate 620 of the water heater cover is positioned inside the main body 610. Furthermore, the two second connecting plates 613 of the main body 610 need to be shaped to fit the side plate 620. The most difficult part is how to conveniently and quickly transfer the water heater cover 600 in the riveting state after positioning and shaping the main body 610 and the side plate 620 to the riveting state. The positioning fixture of this application can effectively achieve the positioning and shaping of the water heater cover, and also facilitates the gripping and transfer by the material handling arm 400. Specifically, as shown... Figures 3 to 5As shown, the positioning plate 210 is provided with a first positioning surface 2521, a second positioning surface 2511, and a positioning part. The positioning part is used to position and limit the notch 621 of the water heater cover side plate 620. The first positioning surface 2521 and the first positioning component form a positioning groove for limiting the water heater cover side plate 620. The second positioning surface 2511 is used to support and position the water heater cover main plate 610. After the water heater cover side plate 620 and the water heater cover main plate 610 are positioned on the positioning plate 210, the first positioning component and the second positioning component operate simultaneously. The first positioning component presses the water heater cover side plate 620 against the first positioning surface 2521 and makes the connecting ears 611 at the end of the water heater cover main plate 610 fit with the water heater cover side plate 620. The second positioning component adjusts the connecting ears 611 on both sides of the end of the water heater cover main plate 610 to the riveting position of the water heater cover side plate 620. The shaping and positioning process involves the worker first placing the side panel 620 of the water heater cover into the positioning groove and engaging the notch 621 of the side panel 620 with the positioning part to achieve initial positioning of the side panel 620. Then, the main panel 610 of the water heater cover is placed on the second positioning surface 2511. At this point, the connecting ear 611 of the main panel 610 should be in contact with the side panel 620. Then, the first positioning component and the second positioning component operate simultaneously. The first positioning component presses the side panel 620 against the first positioning surface 2521. Because the connecting ear 611 is in contact with the side panel 620, the main panel 610 is also passively adjusted to the designated position. The second positioning component... The function of the component is to adjust the connecting ears 611 on both sides of the end of the main board 610 of the water heater cover to the riveting position of the side plate 620 of the water heater cover, so that when the material picker 400 grabs it, the water heater cover 600 has already been shaped and positioned. When picking up the material, the material picker 400 replaces the first positioning component and the second positioning component to complete the shaping and positioning of the water heater cover 600. At this time, the first positioning component and the second positioning component release the restriction on the main board 610 and the side plate 620 of the water heater cover, and the material picker 400 can easily take the water heater cover 600 away from the positioning plate 210. This effectively ensures that the water heater cover 600 is also in the riveting state during the process of transferring the water heater cover 600 to the material picker 400.

[0037] Specifically, the positioning plate 210 includes a first upright member 251, a second upright member 252, and a positioning member 211. The second positioning surface 2511 is disposed on the top surface of the first upright member 251. The top surface of the first upright member 251 is raised in the middle to form a positioning part. The second upright member 252 is disposed on one side of the first upright member 251. The first positioning component is located on the other side of the first upright member 251. The second upright member 252 is disposed on both sides of the positioning part. There are two sets of the first positioning components. The first positioning components face the second upright member 252 to form a positioning groove. The first positioning surface 2521 is disposed on the side of the second upright member 252 facing the first positioning component. The top surface of the positioning member 211 coincides with the second positioning surface 2511. The positioning part, the first positioning surface 2521, the second positioning surface 2511, and the first positioning component work together to achieve complete positioning of the side panel 620 of the water heater cover. Then, the second positioning component shapes the main board 610 of the water heater cover into a riveting state to facilitate rapid subsequent riveting. Moreover, workers do not need complicated positioning operation steps when loading, which effectively improves the loading speed of workers and reduces their labor intensity.

[0038] In some embodiments, the first positioning component includes a first cylinder 241 and a first pressing block 242. Under the action of the first cylinder 241, the first pressing block 242 can move toward the first positioning surface 2521. There are two sets of second positioning components, which are symmetrically arranged. The second positioning component includes a second cylinder 222 and a second pressing block 221. The second cylinder 222 drives the second pressing block 221 to perform linear reciprocating motion. The movement direction of the second pressing block 221 is perpendicular to the movement direction of the first pressing block 242, which can ensure that the shaping and positioning of the water heater cover 600 is more accurate.

[0039] In some embodiments, such as Figures 7 to 9 As shown, the material handling robot 400 includes a mounting plate 402, a first limiting module, a second limiting module, and a drive assembly. One side of the mounting plate 402 has a connecting part 401 that can connect to the material handling robot 300. The first and second limiting modules are both located on the other side of the mounting plate 402. The first limiting module includes two clamping members 420 that are slidably disposed on the mounting plate 402. The drive assembly is used to drive the two clamping members 420 to move closer or further apart, thereby enabling the first limiting module to... The main board 610 of the water heater cover 600 is capable of clamping the water heater cover 600 in the riveting state. The second limiting module is used to fix the side plate 620 of the water heater cover 600 in the riveting state. The two clamping parts 420 are used to shape and limit the two sides of the main board 610 of the water heater cover, and the second limiting module is used to adsorb and fix the side plate 620 of the water heater cover, ensuring that the water heater cover 600 does not fall off or deform during the movement of the material handling hand 400, which facilitates the accurate execution of riveting.

[0040] Specifically, the two clamping components 420 are symmetrically arranged. Each clamping component 420 includes a third positioning surface and a limiting plate 421. The limiting plate 421 is perpendicular to the third positioning surface. Figure 9 As shown, multiple positioning posts 423 are spaced apart on the facing sides of the two limiting plates 421. The multiple positioning posts 423 form a fourth positioning surface for limiting the second connecting plate 613. A first suction cup 422 is provided between two adjacent positioning posts 423. The first suction cup 422 is used to adsorb the second connecting plate 613 on the main board 610 of the water heater cover. The first suction cup 422 is flush with the fourth positioning surface. The setting of the fourth positioning surface ensures that the shaping and limiting are in place, while the setting of the first suction cup 422 ensures that the material handling hand 400 firmly grasps the main board 610 of the water heater cover during the conveying process. Furthermore, the mounting plate 402 is provided with a second suction cup 440 for adsorbing the first connecting plate 612 on the main board 610 of the water heater cover. The second suction cup 440 is located between the two clamping parts 420, and the second suction cup 440 is flush with the third positioning surface. The third positioning surface and the fourth positioning surface together define the shaping state required for the main board 610 of the water heater cover during riveting. The cooperation of the first suction cup 422 and the second suction cup 440 ensures that there will be no deformation or detachment during the gripping process.

[0041] In other embodiments, the second limiting module includes two mounting posts 410, each with a fifth positioning surface. The fifth positioning surface is embedded with a magnet 411 for adsorbing the side panel 620 of the water heater cover. When the material handling hand 400 picks up the shaped water heater cover 600, the third positioning surface contacts the first connecting plate 612, and the fifth positioning surface adheres to the side panel 620 of the water heater cover. Then, the two clamping pieces 420 clamp the second connecting plate 613 under the action of the driving component, and the fourth positioning surface adheres to the second connecting plate 613. Then, the first suction cup 422 and the second suction cup 440 generate a vacuum to adsorb the main board 610 of the water heater cover, and the side panel 620 of the water heater cover is fixed by the clamping of the main board 610 and the adsorption of the magnet 411, thus completely transferring the water heater cover 600 to be riveted.

[0042] In this embodiment, the driving assembly includes a motor 431 and a lead screw transmission structure 433. The lead screw transmission structure 433 is disposed on the mounting plate 402 and located between the mounting plate 402 and the clamping member 420. The lead screw transmission structure 433 includes a lead screw and a lead screw nut that can be fixedly connected to the clamping member 420. The motor 431 drives the lead screw through a belt transmission structure 432. It should be noted that the lead screw is a positive lead screw, and there are two lead screw nuts, one positive lead screw nut and the other negative lead screw nut. The motor 431 drives the lead screw to rotate, thereby driving the two clamping members 420 to move closer or further apart. The motor 431 is mounted on the side of the mounting plate 402 where the connecting part 401 is provided, so that the entire material handling hand 400 structure is more compact. The motor 431 driving method can reduce clamping errors. In addition, the clamping members 420 are slidably connected to the mounting plate 402 through a guide rail slider structure, so that the two clamping members 420 can move closer or further apart.

[0043] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An automatic riveting production system for water heater covers, characterized in that: The system includes a material placement platform (100), with riveting devices installed on both adjacent sides of the platform and feeding devices (200) on the other adjacent sides. A manual feeding position is provided between the two feeding devices (200). The feeding device (200) includes a bracket (201) and a positioning fixture. The positioning fixture is slidably disposed on the bracket (201) so that the positioning fixture can reciprocate between the riveting equipment and the manual feeding position. The positioning fixture includes a positioning plate (210), a first positioning component and a second positioning component. The first positioning component and the second positioning component are both installed on the positioning plate (210). The positioning plate (210) is used for positioning the main body (610) of the water heater cover and the side panel (620) of the water heater cover. The main body (610) of the water heater cover and the side panel (620) of the water heater cover are assembled into a water heater cover (600) in a riveting state through the cooperation of the first positioning component and the second positioning component. The riveting equipment includes a riveting machine (500), a material handling robot (300), and a material handling hand (400). The material handling hand (400) is installed on the moving end of the material handling robot (300). The material handling robot (300) is used to drive the material handling hand (400) to move back and forth between the positioning fixture, the riveting machine (500), and the material placement platform (100), so that the material handling hand (400) can pick up the water heater cover (600) to be riveted and place it at the riveting machine (500) for riveting, and place the riveted water heater cover (600) on the material placement platform (100). The material handling hand (400) includes a mounting plate (402), a first limiting module, a second limiting module, and a drive assembly. One side of the mounting plate (402) is provided with a connecting part (401) that can be connected to the material handling robot (300). The first limiting module and the second limiting module are both provided on the other side of the mounting plate (402). The first limiting module includes two clamping members (420) that are slidably disposed on the mounting plate (402). The drive assembly is used to drive the two clamping members (420) to move closer or further apart, so that the first limiting module can clamp the main body (610) of the water heater cover (600) in the riveting state. The second limiting module is used to fix the side plate (620) of the water heater cover (600) in the riveting state.

2. The automatic riveting production system for water heater covers according to claim 1, characterized in that: The positioning plate (210) is provided with a first positioning surface (2521), a second positioning surface (2511), and a positioning part. The positioning part is used to position and define the notch (621) of the water heater mask side plate (620). The first positioning surface (2521) and the first positioning component form a positioning groove for limiting the water heater mask side plate (620). The second positioning surface (2511) is used to support and position the water heater mask main plate (610). The water heater mask side plate (620) and the water heater mask main plate (610) are connected. 10) After being positioned on the positioning plate (210), the first positioning component and the second positioning component operate simultaneously. The first positioning component presses the water heater cover side plate (620) against the first positioning surface (2521) and makes the connecting ears (611) at the end of the water heater cover main board (610) fit with the water heater cover side plate (620). The second positioning component adjusts the connecting ears (611) on both sides of the end of the water heater cover main board (610) to the riveting position of the water heater cover side plate (620).

3. The automatic riveting production system for water heater covers according to claim 2, characterized in that: The positioning plate (210) includes a first upright (251), a second upright (252), and a positioning component (211). The second positioning surface (2511) is disposed on the top surface of the first upright (251). The top surface of the first upright (251) is raised in the middle to form the positioning part. The second upright (252) is disposed on one side of the first upright (251). The first positioning component is located on the other side of the first upright (251). The second upright (252) is disposed on both sides of the positioning part. The first positioning component is provided in two sets. The first positioning component faces the second upright (252) to form the positioning groove. The first positioning surface (2521) is disposed on the side of the second upright (252) facing the first positioning component. The top surface of the positioning component (211) coincides with the second positioning surface (2511).

4. The automatic riveting production system for water heater covers according to claim 3, characterized in that: The first positioning component includes a first cylinder (241) and a first pressing block (242). Under the action of the first cylinder (241), the first pressing block (242) can move toward the first positioning surface (2521). The second positioning component is provided in two sets, and the two sets of the second positioning components are symmetrically arranged. The second positioning component includes a second cylinder (222) and a second pressing block (221). The second cylinder (222) drives the second pressing block (221) to perform linear reciprocating motion. The movement direction of the second pressing block (221) is perpendicular to the movement direction of the first pressing block (242).

5. The automatic riveting production system for water heater covers according to claim 1, characterized in that: The two clamping members (420) are symmetrically arranged. Each clamping member (420) includes a third positioning surface and a limiting plate (421). The limiting plate (421) is perpendicular to the third positioning surface. Multiple positioning posts (423) are spaced apart on the facing sides of the two limiting plates (421). The multiple positioning posts (423) form a fourth positioning surface. A first suction cup (422) is provided between two adjacent positioning posts (423). The first suction cup (422) is used to adsorb the second connecting plate (613) on the main board (610) of the water heater cover. The first suction cup (422) is flat against the fourth positioning surface.

6. The automatic riveting production system for water heater covers according to claim 5, characterized in that: The mounting plate (402) is provided with a second suction cup (440) for adsorbing the first connecting plate (612) on the main board (610) of the water heater cover. The second suction cup (440) is located between the two clamping members (420) and is flush with the third positioning surface.

7. The automatic riveting production system for water heater covers according to claim 5, characterized in that: The second limiting module includes two mounting posts (410), each of which is provided with a fifth positioning surface. The fifth positioning surface is embedded with a magnet (411) for adsorbing the side plate (620) of the water heater cover.

8. The automatic riveting production system for water heater covers according to claim 1, characterized in that: The drive assembly includes a motor (431) and a lead screw drive structure (433). The lead screw drive structure (433) is disposed on the mounting plate (402) and located between the mounting plate (402) and the clamping member (420). The lead screw drive structure (433) includes a lead screw and a lead screw nut that can be fixedly connected to the clamping member (420). The motor (431) is connected to the lead screw via a belt drive structure (432). The motor (431) is mounted on the side of the mounting plate (402) where the connecting part (401) is provided.

9. The automatic riveting production system for water heater covers according to claim 1, characterized in that: The clamping member (420) is slidably connected to the mounting plate (402) through a guide rail slider structure, so that the two clamping members (420) can move closer or further apart.