An automated riveting device for box lids

Abstract

This invention discloses an automated riveting device for box lids. The pneumatic mechanism includes a vertically arranged drive cylinder, the telescopic end of which is connected to a drive block. The transmission mechanism includes a horizontally arranged transmission block, one end of which is connected to the drive block, and the other end of which is connected to the edge riveting mold and the corner riveting mold. The clamping mechanism includes a gripper located below the mold assembly and a clamping cylinder that drives the gripper to reciprocate along the direction of the mold assembly. The feeding mechanism includes a feeding plate located below the gripper and a feeding cylinder that drives the feeding plate to reciprocate vertically. This invention, by setting up a pneumatic mechanism and a transmission mechanism, uses multiple power sources to drive the edge riveting mold and the corner riveting mold for riveting. Its structure is simple, highly controllable, and improves riveting stability. By setting up a feeding mechanism and a clamping mechanism, the magnetron tube to be riveted is lifted, fed, and limited, improving processing efficiency and riveting accuracy.

Description

Technical Field

[0001] This invention relates to the field of magnetron assembly equipment technology, and in particular to an automated riveting device for box lids. Background Technology

[0002] The magnetron is the core component of a microwave oven. It generates microwaves, which heat the food when they are directed onto it. During the magnetron assembly process, the cover skirt needs to be riveted tightly to the filter box housing to achieve the purpose of sealing the filter box. This is achieved using a cover riveting device, which improves the riveting tightness and production efficiency.

[0003] Application No. 201510373341.8 discloses a riveting die for riveting the top cover of a magnetron tube, utilizing the lever principle to rivet the skirt of the top cover. A transmission rod drives the lever arm to swing, pushing the side riveting die and the corner riveting die to slide and rivet the skirt of the magnetron tube top cover. However, the single power source drive method requires multiple lever arms and hinge transmissions to act on the side riveting die and the corner riveting die, resulting in a relatively complex structure, difficulty in adjusting the stroke, and the inability of the side riveting die and the corner riveting die to rivet synchronously, causing an imbalance of force on the four sides of the cover and poor riveting accuracy. Furthermore, in automated production lines, the riveting device is generally installed upside down. Due to the lack of corresponding clamping and feeding mechanisms, it is prone to lateral deviation and loosening during riveting, affecting riveting stability and processing efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automated riveting device for box lids.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An automated riveting device for box lids includes a base plate, a mold assembly, a pneumatic mechanism, a transmission mechanism, a clamping mechanism, and a feeding mechanism, characterized in that:

[0007] The mold assembly includes a central mold facing downwards from the base plate, and side riveting molds and corner riveting molds that are slidably connected to the base plate along the direction of the central mold. The side riveting molds and corner riveting molds are arranged symmetrically around the central mold, and their positions correspond to the four sides and four corners of the central mold, respectively.

[0008] The pneumatic mechanism includes a vertically arranged drive cylinder, and the extension and retraction end of the drive cylinder is connected to a drive block; the transmission mechanism includes a horizontally arranged transmission block, one end of which is connected to the drive block, and the other end of which is connected to the edge riveting mold and the corner riveting mold.

[0009] The clamping mechanism includes a gripper located below the mold assembly and a clamping cylinder that drives the gripper to reciprocate along the direction of the mold assembly; the feeding mechanism includes a feeding plate located below the gripper and a feeding cylinder that drives the feeding plate to reciprocate in the vertical direction.

[0010] Preferably, the drive block has an inclined surface at the end away from the drive cylinder, and the transmission block has a roller rotatably connected at the end near the drive block, with the roller rollingly connected to the inclined surface.

[0011] Preferably, the gripper has an L-shaped structure, with one end of the gripper swinging and connected to the bottom of the edge riveting mold, and the other end of the gripper extending to have a support portion.

[0012] Preferably, a connecting block is rotatably connected to the outside of the gripper, and the telescopic end of the gripping cylinder is connected to the gripper through the connecting block.

[0013] Preferably, the feeding mechanism includes a clamping plate slidably connected to the feeding plate, and a clamping cylinder that drives the clamping plate to reciprocate in the horizontal direction.

[0014] Preferably, the base plate is vertically mounted with a stripping cylinder, the central mold has a downward through hole in the center, a stripping block is slidably connected in the through hole, and the telescopic end of the stripping cylinder passes through the base plate and is connected to the stripping block.

[0015] Preferably, an elastic reset mechanism is connected between the edge riveting mold and the center mold, and between the corner riveting mold and the center mold. The extension and retraction direction of the elastic reset mechanism is the same as the sliding direction of the edge riveting mold and the corner riveting mold.

[0016] Preferably, the outer side of the central mold is provided with a skirt-shaped surface, the cross-section of which has a wavy structure, and the edge riveting mold is provided with an edge riveting surface corresponding to the skirt-shaped surface.

[0017] The present invention has the following beneficial effects:

[0018] This invention utilizes a pneumatic and transmission mechanism, employing independent cylinders and multiple power sources for driving. It leverages the wedge-slider transmission principle to drive the side and corner riveting molds for riveting. This design is simple, highly controllable, and allows for easy adjustment of the stroke, ensuring balanced force on all four sides of the lid and improving riveting stability. Furthermore, by incorporating a feeding and clamping mechanism, the magnetron to be riveted is lifted, fed, and fixed, preventing deviations and loosening during riveting and effectively improving processing efficiency and riveting accuracy. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the assembly structure of the automated riveting device for the box lid described in this invention.

[0020] Figure 2This is a schematic diagram of the assembly structure of the mold assembly and clamping mechanism described in this invention.

[0021] Figure 3 This is a schematic diagram of the assembly structure of the pneumatic mechanism and the transmission mechanism described in this invention.

[0022] Figure 4 This is a schematic diagram of the clamping mechanism described in this invention.

[0023] Figure 5 This is a schematic diagram of the feeding mechanism described in this invention.

[0024] Figure 6 This is a schematic diagram of the assembly structure of the central mold and the stripper block described in this invention.

[0025] Figure 7 This is a schematic diagram of the assembly structure of the cover and the filter housing described in this invention.

[0026] Figure descriptions: 1. Base plate, 2. Center mold, 3. Edge riveting mold, 4. Corner riveting mold, 5. Drive cylinder, 6. Drive block, 7. Transmission block, 8. Clamping hand, 9. Clamping cylinder, 10. Feeding plate, 11. Feeding cylinder, 12. Roller, 13. Supporting part, 14. Connecting block, 15. Clamping plate, 16. Ejection cylinder, 17. Ejection block, 18. Skirt profile, 19. Edge riveting profile, 20. Box cover, 21. Filter box housing, 22. Detailed Implementation

[0027] 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.

[0028] Reference Figures 1 to 7 One embodiment provided by the present invention:

[0029] An automated riveting device for box lids includes a base plate 1, a mold assembly, a pneumatic mechanism, a transmission mechanism, a clamping mechanism, and a feeding mechanism.

[0030] The mold assembly includes a central mold 2 facing downwards from the base plate 1, and a side riveting mold 3 and a corner riveting mold 4 slidably connected to the base plate 1 along the direction of the central mold 2. The side riveting mold 3 and the corner riveting mold 4 are arranged symmetrically around the central mold 2, and their positions correspond to the four sides and four corners of the central mold 2, respectively.

[0031] The pneumatic mechanism includes a vertically arranged drive cylinder 5, and the extension and retraction end of the drive cylinder 5 is connected to a drive block 6; the transmission mechanism includes a horizontally arranged transmission block 7, one end of the transmission block 7 is connected to the drive block 6, and the other end of the transmission block 7 is connected to the edge riveting mold 3 and the corner riveting mold 4.

[0032] The clamping mechanism includes a gripper 8 located below the mold assembly and a clamping cylinder 9 that drives the gripper 8 to reciprocate along the direction of the mold assembly; the feeding mechanism includes a feeding plate 10 located below the gripper 8 and a feeding cylinder 11 that drives the feeding plate 10 to reciprocate in the vertical direction.

[0033] In the prior art, the magnetron includes a filter housing 22 and a cover 21. The cover 21 is installed above the filter housing 22 to seal it. A cover skirt extends from the outside of the cover 21, located on its four sides and four corners. The cover skirt has a bent structure at a certain angle, allowing it to fold under pressure. During magnetron assembly, the cover skirt is riveted to the outside of the filter housing 22, thus achieving the purpose of filter housing encapsulation. Furthermore, in actual production scenarios, to accommodate automated production line setups, the riveting device is generally installed in an inverted manner. This can be understood as follows: the center mold 2, the side riveting mold 3, and the corner riveting mold 4 are all located below the base plate 1, with the cover 21 and the filter housing 22 installed in an upper and lower structure, and the mold assembly located above the cover 21. For ease of description, after the cover 21 is installed above the filter housing 22, both are referred to as the magnetrons to be riveted.

[0034] By setting up an automated riveting device for the box cover, the skirt of the box cover is riveted to the outside of the filter box housing 22, thereby achieving the purpose of filter box encapsulation. At the same time, it provides functions such as limit fixing, lifting and feeding, thereby achieving automated production effect. The whole includes a base plate 1, mold assembly, pneumatic mechanism, transmission mechanism, clamping mechanism and feeding mechanism.

[0035] The mold assembly, acting as the riveting working component, rivets the cover 21 to the filter box housing 22 by pressing the cover skirt. The mold assembly includes a central mold 2, side riveting molds 3, and corner riveting molds 4, corresponding to the top, four sides, and four corners of the cover 21, respectively. The central mold 2 is fixedly installed on the base plate 1, facing downwards. A riveting working area is provided on the outer side of the central mold 2. The lower end face of the central mold 2 may have a positioning recess, which is used to limit and fix the cover 21. The internal structure of the positioning recess matches the top contour of the cover 21, improving riveting stability. The side riveting molds 3 and corner riveting molds 4 are slidably connected to the bottom of the base plate 1 along the direction of the central mold 2, and are arranged around the outer side of the central mold 2. There may be four sets of side riveting molds 3 and corner riveting molds 4, their positions corresponding to the four sides and four corners of the central mold 2, respectively. The edge riveting mold 3 cooperates with the center mold 2 to rivet the edge of the box cover 21. The corner riveting mold 4 cooperates with the center mold 2 to rivet the corner edge of the box cover 21. The edge riveting molds 3 and corner riveting molds 4 are centrally symmetrically distributed around the center mold 2. The distance from each edge riveting mold 3 to the center mold 2 is equal, and the distance from each corner riveting mold 4 to the center mold 2 is equal. This facilitates the balance of forces on all four sides of the box cover 21 during the riveting process and improves the stability of the riveting.

[0036] The pneumatic mechanism provides the driving force, using a cylinder drive method, and provides an independent power source for each set of edge riveting molds 3 and corner riveting molds 4. Compared with a single power source, it is more conducive to controlling the driving force and movement stroke. The pneumatic mechanism includes a drive cylinder 5 and a drive block 6. The drive cylinder 5 is mounted vertically on the base plate 1, and the extension end of the drive cylinder 5 is set below the base plate 1. The extension end of the drive cylinder 5 is connected to the drive block 6, and the drive block 6 reciprocates vertically under the drive of the drive cylinder 5.

[0037] The transmission mechanism controls the transmission direction. Through the transmission relationship between the pneumatic mechanism and the transmission mechanism, the direction of the driving force transmission is changed, thereby converting the vertical motion of the pneumatic mechanism into the horizontal motion of the edge riveting mold 3 and the corner riveting mold 4. The transmission mechanism includes a transmission block 7, which is horizontally slidably connected to the bottom plate 1. Its sliding direction is the same as the movement direction of the edge riveting mold 3 and the corner riveting mold 4. One end of the transmission block 7 is connected to the drive block 6, and the other end of the transmission block 7 is connected to the edge riveting mold 3 and the corner riveting mold 4. The drive block 6 and the transmission block 7 can each have complementary inclined surfaces. The two inclined surfaces cooperate to slide, forming a wedge-slider mechanism in mechanical principle. As the inclined surfaces slide and cooperate, the transmission direction is changed, thereby driving the edge riveting mold 3 and the corner riveting mold 4 to move towards the center mold 2.

[0038] The clamping mechanism clamps the magnetron tube to be riveted, thereby achieving limited fixation and allowing riveting to proceed while in a clamped state, preventing lateral deviation and loosening, and improving riveting stability. The clamping mechanism includes a gripper 8 and a clamping cylinder 9. The gripper 8 is located below the mold assembly and can be rotatably connected to the base plate 1 in a vertical direction, facilitating the clamping of the magnetron tube to be riveted below the mold assembly. The telescopic end of the clamping cylinder 9 is connected to the gripper 8. Driven by the clamping cylinder 9, the gripper 8 reciprocates along the direction of the mold assembly, clamping the magnetron tube within its trajectory during the oscillation process.

[0039] The feeding mechanism transports the magnetron to be riveted, thereby lifting and feeding it. The magnetron, located on the workbench or conveyor belt, is lifted to a suitable clamping height, where the gripper 8 clamps it, improving production efficiency. The feeding mechanism includes a feeding plate 10 and a feeding cylinder 11. The feeding plate 10 is horizontally positioned below the gripper 8 for easy lifting of the magnetron. To avoid interference and collision between the feeding plate 10 and the gripper 8, the gripper 8 can be positioned on the left and right sides of the central mold 2, and the feeding plate 10 can be positioned on the front and rear sides of the central mold 2. The feeding cylinder 11 is vertically mounted on the base plate 1, with its extension end facing downwards. The extension end of the feeding cylinder 11 is connected to the feeding plate 10, and the feeding plate 10 reciprocates vertically under the drive of the feeding cylinder 11, thus achieving the feeding function.

[0040] Work process:

[0041] First, the feeding cylinder 11 drives the feeding plate 10, which moves upward to lift the magnetron to be riveted to a suitable clamping height, thus achieving the purpose of lifting and feeding. The clamping cylinder 9 drives the clamp 8, which swings towards the mold assembly to clamp the lifted magnetron to be riveted. During this process, the clamp 8 clamps both sides of the magnetron to be riveted to achieve horizontal limitation. Then, it supports the lower end of the magnetron to be riveted, fixing the cover 21 inside the central mold 2 to achieve vertical limitation.

[0042] Then, the drive cylinder 5 drives the drive block 6, which moves downward. The drive block 6 cooperates with the transmission block 7, which moves horizontally and drives the side riveting mold 3 and the corner riveting mold 4 to move along the direction of the center mold 2. The side riveting mold 3 and the corner riveting mold 4 squeeze the skirt of the cover and rivet the cover 21 to the filter box housing 22, thus completing the riveting process of the cover 21.

[0043] This invention utilizes a pneumatic and transmission mechanism, employing independent cylinders and multiple power sources for driving. It also leverages the wedge-slider transmission principle to drive the side and corner riveting molds for riveting. This design is simple, highly controllable, and allows for easy adjustment of the stroke, ensuring balanced force on all four sides of the cover 21 and improving riveting stability. Furthermore, by incorporating a feeding and clamping mechanism, the magnetron to be riveted is lifted, fed, and fixed, preventing deviations and loosening during riveting and effectively improving processing efficiency and riveting accuracy.

[0044] In this embodiment, preferably, the drive block 6 has an inclined surface at the end away from the drive cylinder 5, and the transmission block 7 has a roller 12 rotatably connected at the end near the drive block 6, with the roller 12 rollingly connected to the inclined surface.

[0045] By setting an inclined surface and a roller 12, both positioned at the transmission connection between the drive block 6 and the transmission block 7, the inclined surface is located at the end of the drive block 6, corresponding to the side of the drive block 6 facing the transmission block 7. The roller 12 is rotatably connected to the end of the transmission block 7, and the roller 12 is in rolling contact with the inclined surface. Driven by the drive cylinder 5, the drive block 6 moves downward, and the inclined surface contacts the roller 12. The drive block 6 continues to move downward, and the roller 12 rolls on the inclined surface, thereby driving the transmission block 7 to move horizontally. This, in turn, drives the side riveting mold 3 and the corner riveting mold 4 to move along the direction of the center mold 2, thus changing the transmission direction. Compared with the conventional linkage structure transmission method, this method is simple in structure, easy to install, has lower requirements for component precision, and is easy to adjust the stroke.

[0046] In this embodiment, preferably, the gripper 8 has an L-shaped structure, with one end of the gripper 8 swinging and connected to the bottom of the edge riveting mold 3, and the other end of the gripper 8 extending to have a support portion 13.

[0047] By designing the grippers 8 as L-shaped structures, two sets can be symmetrically arranged about the central mold 2 to ensure a clamping effect during rotation. One end of the grippers 8 is sway-connected to the bottom of the edge riveting mold 3, or rotatably connected to the base plate 1, corresponding to the left and right sides of the central mold 2, facilitating clamping of the left and right edges of the magnetron tube to be riveted. The other end of the grippers 8 extends to a support portion 13, which serves as the clamping working area and can extend inwards to facilitate hooking the magnetron tube to be riveted during the swinging process. The end of the support portion 13 has a horizontal surface, which, when clamping the magnetron tube, is in close contact with the lower end surface of the magnetron tube, improving clamping stability.

[0048] In this embodiment, preferably, a connecting block 14 is rotatably connected to the outside of the gripper 8, and the telescopic end of the gripping cylinder 9 is connected to the gripper 8 through the connecting block 14.

[0049] By setting a connecting block 14, which is located between the gripper 8 and the clamping cylinder 9, the connecting block 14 is rotatably connected to the outside of the gripper 8 and fixedly connected to the telescopic end of the clamping cylinder 9. The clamping cylinder 9 drives the gripper 8 to reciprocate through the connecting block 14. The clamping cylinder 9 provides driving force to the gripper 8. If the telescopic end of the clamping cylinder 9 is fixedly connected to the gripper 8, the direction of the driving force will be constant. After the gripper 8 swings to a certain position, it will be difficult for the gripper 8 to continue swinging due to the transmission angle problem. By adding a connecting block 14 that is rotatably connected to the gripper 8, a hinge relationship is added between the gripper 8 and the clamping cylinder 9, forming a linkage transmission mechanism in mechanical principle, which can change the direction of the driving force, thereby solving the above problem.

[0050] In this embodiment, preferably, the feeding mechanism includes a clamping plate 15 slidably connected to the feeding plate 10, and a clamping cylinder 16 that drives the clamping plate 15 to reciprocate in the horizontal direction.

[0051] By setting up a clamping plate 15 and a clamping cylinder 16, the clamping plate 15 is horizontally positioned and may have a clamping part on the side facing the central mold 2, facilitating engagement with the magnetron tube to be riveted. The clamping plate 15 is slidably connected to the feeding plate 10, and the telescopic end of the clamping cylinder 16 is connected to the clamping plate 15. Driven by the clamping cylinder 16, the clamping plate 15 reciprocates horizontally or backward, corresponding to the front and rear sides of the central mold 2, facilitating engagement of the edges of the magnetron tube to be riveted on both sides. The clamping cylinder 16 drives the clamping plate 15, which moves towards the magnetron tube to be riveted and engages it. Subsequently, the feeding cylinder 11 drives the feeding plate 10, which moves upward, lifting the magnetron tube to be riveted to a suitable clamping height. By adding the above-mentioned engagement step before lifting and feeding, the feeding process is made more stable and can adapt to the riveting of magnetron tubes of different widths.

[0052] In this embodiment, preferably, a stripping cylinder 17 is vertically mounted on the base plate 1, and a downward through hole is provided in the center of the central mold 2. A stripping block 18 is slidably connected in the through hole, and the telescopic end of the stripping cylinder 17 passes through the base plate 1 and is connected to the stripping block 18.

[0053] By setting a stripping cylinder 17 and a stripping block 18, the stripping cylinder 17 is vertically installed on the base plate 1, with its telescopic end facing downwards from the base plate 1. The central mold 2 has a through hole in its center, which faces downwards. The through hole can be located at the center of the positioning recess, corresponding to the center of the lid 21. A stripping block 18 is slidably connected within the through hole, its shape matching the through hole. The stripping block 18 can be made of a flexible material such as rubber. The telescopic end of the stripping cylinder 17 passes through the base plate 1 and connects to the stripping block 18. The stripping block 18 slides back and forth within the through hole and can extend downwards out of the through hole. After the lid 21 is riveted, because the internal structure of the positioning recess matches the top contour of the lid 21, the lid 21 will be tightly fitted inside the central mold 2, making it impossible to remove the lid 21. At this time, driven by the stripping cylinder 17, the stripping block 18 extends out from the through hole of the central mold 2 and pushes the box cover 21 downward, thus realizing the stripping function of the box cover 21.

[0054] In this embodiment, preferably, an elastic reset mechanism is connected between the edge riveting mold 3 and the center mold 2, and between the corner riveting mold 4 and the center mold 2. The extension and retraction direction of the elastic reset mechanism is the same as the sliding direction of the edge riveting mold 3 and the corner riveting mold 4.

[0055] By setting up an elastic reset mechanism, such as a reset spring, connected between the edge riveting mold 3 and the center mold 2, and between the corner riveting mold 4 and the center mold 2, respectively, mounting holes can be opened on the side walls of the edge riveting mold 3, corner riveting mold 4, and center mold 2, with the elastic reset mechanism embedded in the mounting holes to provide installation stability. The extension and retraction direction of the elastic reset mechanism is the same as the sliding direction of the edge riveting mold 3 and corner riveting mold 4. Under the action of driving force, the edge riveting mold 3 and corner riveting mold 4 rivet the cover 21, and the elastic reset mechanism is in a compressed state. After the cover 21 is riveted, as the pneumatic mechanism resets, the edge riveting mold 3 and corner riveting mold 4 lose driving force and are ejected and restored by the elastic reset mechanism, pushing the edge riveting mold 3 and corner riveting mold 4 to their initial position, thus achieving the reset function.

[0056] In this embodiment, preferably, the outer side of the central mold 2 is provided with a skirt-shaped surface 19, the cross-section of the skirt-shaped surface 19 is a wave-shaped structure, and the edge riveting mold 3 is provided with an edge riveting surface 20 corresponding to the skirt-shaped surface 19.

[0057] By setting a skirt-shaped surface 19 and a riveting surface 20, the skirt-shaped surface 19 is located on the outer sidewall of the central mold 2, and the riveting surface 20 is located on the sidewall of the riveting mold 3 facing the central mold 2. The skirt-shaped surface 19 and the riveting surface 20 serve as the riveting working area, corresponding to the four sides of the central mold 2 and also to the four sides of the lid 21. The skirt-shaped surface 19 and the riveting surface 20 are shaped and positioned, and their cross-sections have a wavy structure. Because the four sides of the lid 21 are relatively long, the metal springback after the lid skirt is squeezed is quite obvious, which can easily cause the riveting to be weak. By adopting a wavy structure, the metal material of the lid skirt will shrink into the recessed position during riveting, overcoming the above-mentioned metal springback problem and improving the riveting strength.

[0058] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated riveting device for box lids, comprising a base plate, a mold assembly, a pneumatic mechanism, a transmission mechanism, a clamping mechanism, and a feeding mechanism, characterized in that: The mold assembly includes a central mold facing downwards from the base plate, and side riveting molds and corner riveting molds that are slidably connected to the base plate along the direction of the central mold. The side riveting molds and corner riveting molds are arranged symmetrically around the central mold, and their positions correspond to the four sides and four corners of the central mold, respectively. The pneumatic mechanism includes a vertically arranged drive cylinder, and the extension and retraction end of the drive cylinder is connected to a drive block; the transmission mechanism includes a horizontally arranged transmission block, one end of which is connected to the drive block, and the other end of which is connected to the edge riveting mold and the corner riveting mold. The clamping mechanism includes a gripper located below the mold assembly, and a clamping cylinder that drives the gripper to reciprocate along the direction of the mold assembly. The feeding mechanism includes a feeding plate located below the gripper, a feeding cylinder that drives the feeding plate to reciprocate in the vertical direction, a clamping plate that is slidably connected to the feeding plate, and a clamping cylinder that drives the clamping plate to reciprocate in the horizontal direction. The outer side of the central mold is provided with a skirt-shaped surface, the cross-section of which has a wavy structure, and the edge riveting mold is provided with an edge riveting surface corresponding to the skirt-shaped surface; The grippers correspond to the left and right sides of the central mold, and the feeding plates correspond to the front and rear sides of the central mold. The feeding cylinder drives the feeding plate, which moves upward to lift the magnetron to be riveted to a suitable clamping height, thus achieving the purpose of lifting and feeding. The clamping cylinder drives the clamping hand, which swings towards the mold assembly to clamp the lifted magnetron to be riveted. During this process, the clamping hand clamps both sides of the magnetron to be riveted to achieve horizontal limitation. Then, it supports the lower end of the magnetron to be riveted, so that the box cover is fixed in the central mold, thus achieving vertical limitation.

2. The automated riveting device for a box lid according to claim 1, characterized in that: The drive block has an inclined surface at the end away from the drive cylinder, and the transmission block has a roller rotatably connected at the end near the drive block, with the roller rolling in connection with the inclined surface.

3. The automated riveting device for a box lid according to claim 1, characterized in that: The gripper has an L-shaped structure, with one end swinging and connected to the bottom of the edge riveting mold, and the other end extending to have a support portion.

4. The automated riveting device for a box lid according to claim 1, characterized in that: A connecting block is rotatably connected to the outside of the gripper, and the telescopic end of the gripping cylinder is connected to the gripper through the connecting block.

5. The automated riveting device for a box lid according to claim 1, characterized in that: The base plate is vertically mounted with a stripping cylinder. The central mold has a downward through hole in the center, and a stripping block is slidably connected in the through hole. The telescopic end of the stripping cylinder passes through the base plate and is connected to the stripping block.

6. The automated riveting device for a box lid according to claim 1, characterized in that: An elastic reset mechanism is connected between the edge riveting mold and the center mold, and between the corner riveting mold and the center mold. The extension and retraction direction of the elastic reset mechanism is the same as the sliding direction of the edge riveting mold and the corner riveting mold.

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