Automatic assembly equipment and method for pressure cooker

Abstract

The invention discloses automatic assembly equipment and method for a pressure cooker. The equipment comprises a punching device, a riveting device and a rotary conveying device. The punching device comprises an outer side punching mechanism, an inner side punching mechanism and a punching lifting driving mechanism used for driving the outer side punching mechanism and the inner side punching mechanism to conduct lifting movement, and the outer side punching mechanism comprises a male die punch and a male die driving mechanism used for driving the male die punch to be close to or away from the outer wall of the cookware. The inner side punching mechanism comprises a female die base and a female die driving mechanism used for driving the female die base to be close to or away from the inner wall of the cookware. The rotary conveying device comprises a rotary workbench, a rotary driving mechanism used for driving the rotary workbench to rotate and a positioning mechanism arranged on the rotary workbench and used for positioning the cookware. The mounting base can be automatically assembled on the cookware, time and labor are saved, and the working efficiency is high.

Description

Technical Field

[0001] The present invention relates to a cookware manufacturing technology, and in particular to automatic assembly equipment and a method for a pressure cooker. Background Art

[0002] The cookware currently sold on the market includes soup pots, milk pots, frying pans, frying pans, pressure cookers, etc., and some of the handles of these cookware are combined with the pot body by a through-riveting or spot welding structure.

[0003] Furthermore, when installing a handle on a conventional cookware, a hole is first drilled in the cookware. A mounting base with riveted holes is then attached to the outer wall of the cookware, aligned with the holes in the cookware. Rivets are then passed through the cookware and the mounting base to secure the connection. Finally, the handle is attached to the mounting base. However, the assembly of the mounting base is often done manually, which is time-consuming and labor-intensive, resulting in low work efficiency. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned problems and provide an automatic assembly device for a pressure cooker, which can automatically assemble a mounting base on a cooker, saving time and labor and having high work efficiency.

[0005] Another object of the present invention is to provide a method for automatically assembling a pressure cooker.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] An automatic assembly device for a pressure cooker, comprising a punching device for punching holes on the side of the cooker, a riveting device for riveting a mounting base to the cooker, and a rotary conveying device for conveying the cooker;

[0008] The punching device includes an outer punching mechanism for punching holes on the outer side of the cookware, an inner punching mechanism for punching holes on the inner side of the cookware, and a punching lifting drive mechanism for driving the outer and inner punching mechanisms to move up and down. The outer punching mechanism includes a punch and a punch driving mechanism for driving the punch toward or away from the outer wall of the cookware. The inner punching mechanism includes a die holder and a die driving mechanism for driving the die holder toward or away from the inner wall of the cookware. The die holder is provided with a punching hole.

[0009] The riveting device includes an inner riveting mechanism for pushing a rivet through a riveting hole of the pot on the inner side of the pot to achieve riveting, an outer riveting mechanism for pushing a mounting base to the outer wall of the pot on the outer side of the pot to achieve riveting, and a riveting lifting drive mechanism for driving the outer riveting mechanism and the inner riveting mechanism to move up and down;

[0010] The rotary conveying device includes a rotary worktable, a rotary drive mechanism for driving the rotary worktable to rotate, and a positioning mechanism arranged on the rotary worktable to position the cookware; in the working state, the rotary worktable sequentially conveys the cookware to be assembled to the punching station and the riveting station.

[0011] In a preferred embodiment of the present invention, the outer punching mechanism further comprises a punching base and a punching guide seat, the punching base is connected to the driving end of the punch driving mechanism, and the punch head is fixedly arranged on the punching base;

[0012] The punching guide seat is connected to the punching base through a relatively movable structure, and a guide reset spring is provided between the punching guide seat and the punching base; the punching guide seat is provided with a guide hole matching the punch head.

[0013] Through the above structure, under the drive of the punch driving mechanism, the punching base drives the punch punch and the punching guide seat to approach the pot at the same time, and the punching guide seat is located in front of the punching base until the punching guide seat is attached to the outer wall of the pot, and the punching guide seat stops moving; the punch driving mechanism continues to drive, and the punch punch continues to move forward along the guide hole of the punching guide seat (at this time the guide return spring is compressed and deformed), and then hits the outer side surface of the pot, thereby realizing punching.

[0014] Furthermore, the punch driving mechanism includes a punch driving cylinder, and the telescopic rod of the punch driving cylinder is fixedly connected to the punching base.

[0015] In a preferred embodiment of the present invention, a blanking channel is provided on the die seat, and the blanking channel is located behind the punching hole and is used to transfer the waste material after punching.

[0016] In a preferred embodiment of the present invention, the die driving mechanism comprises a die driving cylinder, and a telescopic rod of the die driving cylinder is fixedly connected to the die base.

[0017] In a preferred embodiment of the present invention, the punching lifting drive mechanism includes a punching lifting drive motor and a punching lifting transmission assembly, and the punching lifting transmission assembly includes a punching lifting seat, a punching lifting screw and a punching lifting screw nut;

[0018] The outer punching mechanism and the inner punching mechanism are both arranged on a punching lifting seat, and the punching lifting seat is fixedly connected to the punching lifting screw nut.

[0019] A preferred embodiment of the present invention is that the positioning mechanisms are provided with 6 groups and are arranged on the rotating worktable around the central circumference of the rotating worktable; the punching devices are provided with two groups and are located on the same diameter extension line of the rotating worktable, and the riveting devices are provided with two groups and are located on the same diameter extension line of the rotating worktable; in the working state, two groups of the positioning mechanisms are located in two punching stations, two groups of the positioning mechanisms are located in two riveting stations, one group of the positioning mechanisms is located in the loading and unloading stations, and one group of the positioning mechanisms is located in the reversing station.

[0020] With the above structure, the pot to be assembled is first placed in the loading and unloading station. The rotary table then sequentially transports the pot to the punching and riveting stations, where the mounting seat on one side of the pot is riveted. The rotary table then continues to rotate, transporting the pot to the reversing station. The pot is rotated 180 degrees, with the mounting position on the other side facing outward. The rotary table then lowers the pot to the punching and riveting stations, where the mounting seat on the other side is riveted. Finally, the pot is transported to the loading and unloading station, removed, and replaced with a new pot to continue processing. This not only allows for multiple assembly tasks, improving work efficiency, but also reduces the space occupied by the equipment.

[0021] In a preferred embodiment of the present invention, the positioning mechanism includes a positioning plate and a limiting member, wherein the positioning plate is fixedly mounted on the rotating workbench and is provided with a hollow working hole;

[0022] Two stoppers are fixedly mounted on the positioning plate, their arrangement parallel to the radial direction of the rotating table. Each stopper has an arc-shaped positioning surface on its opposing side. This structure allows the cookware to be placed upside down on the positioning plate, with the two stoppers providing phase alignment, preventing the cookware from shifting during rotation.

[0023] A method for automatically assembling a pressure cooker comprises the following steps:

[0024] Place the pot to be installed on the rotating workbench, and use the positioning mechanism to position and fix the pot;

[0025] The rotary workbench is driven to rotate by a rotary drive mechanism to transport the pot to the punching station;

[0026] The outer punching mechanism and the inner punching mechanism are driven to rise by the punching lifting drive mechanism, so that the inner punching mechanism is located in the inner cavity of the pot and the outer punching mechanism is located outside the pot;

[0027] The die driving mechanism drives the die seat to approach and attach to the inner side of the pot, and the punch driving mechanism drives the punch to quickly approach the pot. With the cooperation of the die seat on the inner side, the punch punch punches a rivet hole on the pot.

[0028] The outer punching mechanism and the inner punching mechanism are reset, and the outer punching mechanism and the inner punching mechanism are driven to descend by the punching lifting drive mechanism;

[0029] The rotary workbench is driven to rotate by a rotary drive mechanism to transport the pot to the riveting station;

[0030] The outer riveting mechanism and the inner riveting mechanism are driven to rise by the riveting lifting drive mechanism, so that the inner riveting mechanism is located in the inner cavity of the pot and the outer riveting mechanism is located outside the pot;

[0031] The inner riveting mechanism pushes the rivet through the rivet hole of the cookware, and the outer riveting mechanism pushes the mounting base to the outer wall of the cookware. At this time, the tail of the rivet passes through the rivet hole of the mounting base, and the outer riveting mechanism then punches the tail of the rivet to rivet the cookware and the mounting base together.

[0032] The outer riveting mechanism and the inner riveting mechanism are reset, and the outer riveting mechanism and the inner riveting mechanism are driven to descend by the riveting lifting drive mechanism;

[0033] The rotary table is driven to rotate by a rotary drive mechanism to transport the pot to the next workstation.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. The automatic assembly equipment of the present invention can automatically assemble the mounting base on the cookware, saving time and effort and having high work efficiency.

[0036] 2. By setting up a rotating conveying device, not only can the pots to be assembled be transported to the punching station and the riveting station in sequence, but multiple sets of punching devices and riveting devices can also be set up to assemble multiple pots at the same time, which is conducive to improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the three-dimensional structure of the automatic assembly equipment for pressure cookers of the present invention.

[0038] Figure 2 It is a schematic diagram of the three-dimensional structure of the punching device of the present invention.

[0039] Figure 3 It is a front view of the punching device of the present invention.

[0040] Figure 4It is a front view of the riveting device and the cookware of the present invention.

[0041] Figure 5 It is a schematic diagram of the three-dimensional structure of the riveting device of the present invention.

[0042] Figure 6 It is a front view of the inner riveting mechanism of the riveting device of the present invention.

[0043] Figure 7 It is a schematic three-dimensional structural diagram of the inner riveting mechanism of the riveting device of the present invention.

[0044] Figure 8-Figure 9 It is a cross-sectional view of the inner riveting mechanism of the riveting device of the present invention.

[0045] Figure 10 for Figure 9 Magnified view of the X in .

[0046] Figure 11 It is a schematic three-dimensional structural diagram of the outer riveting mechanism of the riveting device of the present invention.

[0047] Figure 12-13 for Figure 11 Enlarged images of Y in two different states.

[0048] Figure 14 It is a schematic three-dimensional structural diagram of the second push riveting mechanism of the outer riveting mechanism of the riveting device of the present invention.

[0049] Figure 15 The figure is a schematic diagram of the installation of the cookware, rivets and mounting base of the present invention. DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0051] Combine Figure 1-Figure 2 The automatic assembly equipment for pressure cookers of this embodiment includes a punching device B for punching holes on the side of the cookware A, a riveting device C for riveting the mounting base to the cookware A, and a rotating conveying device D for conveying the cookware A.

[0052] Combine Figure 1-Figure 3The punching device B includes an outer punching mechanism for punching holes on the outer side of the pot A, an inner punching mechanism for punching holes on the inner side of the pot A, and a punching lifting drive mechanism for driving the outer punching mechanism and the inner punching mechanism to move up and down. The outer punching mechanism includes a punch 1b and a punch driving mechanism for driving the punch 1b to move closer to or away from the outer wall of the pot A. The inner punching mechanism includes a die base 2b and a die driving mechanism for driving the die base 2b to move closer to or away from the inner wall of the pot A. The die base 2b is provided with a punching hole.

[0053] Combine Figure 2-Figure 3 The outer punching mechanism also includes a punching base 3b and a punching guide seat 4b. The punching base 3b is connected to the driving end of the punch driving mechanism, and the punch punch 1b is fixedly arranged on the punching base 3b; the punching guide seat 4b is connected to the punching base 3b through a relatively movable structure, and a guide return spring 5b is provided between the punching guide seat 4b and the punching base 3b; the punching guide seat 4b is provided with a guide hole matching the punch punch 1b.

[0054] Through the above structure, under the drive of the punch driving mechanism, the punching base 3b drives the punch punch 1b and the punching guide seat 4b to approach the pot A at the same time, and the punching guide seat 4b is located in front of the punching base 3b until the punching guide seat 4b is attached to the outer wall of the pot A, and the punching guide seat 4b stops moving; the punch driving mechanism continues to drive, and the punch punch 1b continues to move forward along the guide hole of the punching guide seat 4b (at this time the guide return spring 5b is compressed and deformed), and then hits the outer side surface of the pot A, thereby realizing punching.

[0055] Furthermore, the punch driving mechanism includes a punch driving cylinder 6b, and the telescopic rod of the punch driving cylinder 6b is fixedly connected to the punching base 3b.

[0056] Combine Figure 2-Figure 3 The die base 2b is provided with a blanking channel 7b, which is located behind the punching hole and is used to transfer the waste after punching.

[0057] Combine Figure 2-Figure 3 The die driving mechanism includes a die driving cylinder 8b, and the telescopic rod of the die driving cylinder 8b is fixedly connected to the die base 2b.

[0058] Combine Figure 2-Figure 3The punching lifting drive mechanism includes a punching lifting drive motor 9b and a punching lifting transmission assembly, and the punching lifting transmission assembly includes a punching lifting seat 10b, a punching lifting screw 11b and a punching lifting screw nut; the outer punching mechanism and the inner punching mechanism are both arranged on the punching lifting seat 10b, and the punching lifting seat 10b is fixedly connected to the punching lifting screw nut.

[0059] Combine Figure 1 and Figure 6-Figure 9 The riveting device C includes an inner riveting mechanism for pushing the rivet through the riveting hole of the pot on the inner side of the pot and achieving riveting, an outer riveting mechanism for pushing the mounting base to the outer wall of the pot on the outer side of the pot and achieving riveting, and a riveting lifting drive mechanism for driving the outer riveting mechanism and the inner riveting mechanism to rise and fall; the inner riveting mechanism includes a first feeding mechanism for automatically feeding the rivet 2c and a first pushing riveting mechanism for pushing the rivet 2c through the riveting hole of the pot A and achieving riveting; wherein, the first feeding mechanism includes a rivet vibration plate and a pneumatic conveying component, and the specific structure can refer to the existing technology.

[0060] Combine Figure 6-Figure 9 The first push riveting mechanism includes a first push riveting seat 4c and a first push riveting drive mechanism. The first push riveting seat 4c is provided with a first riveting push rod 5c for pushing against the head of the rivet 2c; wherein, the first push riveting drive mechanism includes a first push riveting drive cylinder 6c, which is fixedly arranged on the riveting frame 7c, and the telescopic rod of the first push riveting drive cylinder 6c is fixedly connected to the first push riveting seat 4c.

[0061] Combine Figure 6-Figure 9 The inner riveting mechanism also includes a first transfer mechanism, which includes a first transfer seat 8c. This first transfer seat 8c has a transfer positioning hole 8-1c for receiving the rivet 2c. The upper portion of this transfer positioning hole 8-1c is connected to the conveying pipe 9c of the first feeding mechanism. One end of the first riveting push rod 5c extends into the transfer positioning hole 8-1c. This structure allows the rivet 2c to be positioned directly in front of the rivet hole in the pot A, facilitating subsequent pushing and piercing.

[0062] Combine Figures 6-10The first transfer mechanism also includes a posture correction component, which includes two posture correction frames 10c and a reset spring 11c arranged upper and lower. One end of the two posture correction frames 10c is respectively hinged on the first transfer seat 8c, and the other ends of the two posture correction frames 10c are respectively located in front of the transfer positioning hole 8-1c and are both provided with posture correction grooves. The two posture correction grooves constitute a posture correction hole 12c, and the posture correction hole 12c includes a tapered section 12-1c and a horizontal lifting section 12-2c. Along the pushing direction of the rivet 2c, the tapered section 12-1c is located in the middle of the horizontal lifting section 12-2c and the transfer positioning hole 8-1c, and the diameter of the horizontal lifting section 12-2c is smaller than the diameter of the transfer positioning hole 8-1c; the two ends of the reset spring 11c are respectively connected to the two posture correction frames 10c. With the above structure, since the size of the head of the rivet 2c is relatively large, when the rivet 2c is transported to the transfer positioning hole 8-1c, the axis of the rivet 2c is in an inclined state, not horizontally oriented, such as Figure 8 Therefore, when the first riveting push rod 5c pushes the rivet 2c toward the pot A, the tail of the rivet 2c will first contact the tapered section 12-1c of the posture correction hole 12c, and then be guided upward by the tapered section 12-1c of the posture correction hole 12c to the horizontal lifting section 12-2c. At this time, the axis of the rivet 2c is in a horizontal state (or nearly horizontal), as shown in FIG. Figure 9 , so that it can accurately pass through the rivet hole of pot A, which is very clever. Furthermore, when the head of rivet 2c passes through the tapered section 12-1c of the posture correction hole 12c, the head of rivet 2c will expand the two posture correction frames 10c, and the two posture correction frames 10c will flip outward around their respective hinge centers (at this time, the return spring 11c undergoes elastic deformation and stores energy), avoiding the head of rivet 2c from approaching pot A until the head of rivet 2c is attached to the inner wall of pot A. After riveting is completed, the first riveting push rod 5c is reset, and the return spring 11c releases potential energy to restore deformation, driving the two posture correction frames 10c to flip and reset, ready for the next round of work.

[0063] Combine Figure 5-Figure 7 The inner riveting mechanism also includes a supporting mechanism for supporting the first riveting push rod 5c. This supporting mechanism includes a supporting block 13c and a supporting vertical driving mechanism for driving the supporting block 13c to move vertically. After the first riveting push rod 5c affixes the head of the rivet 2c to the inner wall of the pot A, the supporting block 13c is located between the first push riveting seat 4c and the boss of the riveting frame 7c. This structure provides a stable support for the first riveting push rod 5c, preventing it from loosening during the riveting impact, and successfully completing the riveting operation.

[0064] Furthermore, the supporting vertical driving mechanism includes a supporting vertical motor 14c and a supporting vertical transmission assembly, and the supporting vertical transmission assembly includes a supporting vertical screw and a supporting vertical screw nut.

[0065] Combine Figure 12-14 The outer riveting mechanism includes a second feeding mechanism for automatically loading the mounting seat 3c and a second pushing riveting mechanism for pushing the mounting seat 3c to the outer wall of the pot A and realizing riveting; wherein, the second feeding mechanism includes a mounting seat vibration plate and a feeding pipe 18c, and the specific structure can refer to the existing technology.

[0066] Combine Figure 12-14 The second pushing riveting mechanism includes a pushing mechanism for pushing the mounting seat 3c and a top riveting mechanism for punching the rivet 2c; the pushing mechanism includes a pushing seat 15c and a pushing driving mechanism, and the pushing seat 15c is provided with a pushing slot 15-1c for placing the mounting seat 3c; the top riveting mechanism includes a top riveting seat 16c and a top riveting driving mechanism, and the top riveting seat 16c is provided with a second riveting push rod 17c for pushing against the tail of the rivet 2c, and the end of the second riveting push rod 17c is provided with a riveting groove.

[0067] Combine Figure 12-14 The inner riveting mechanism also includes a second transfer mechanism, which includes a second transfer seat 19c and a horizontal transfer drive mechanism; a transfer slot 19-1c is provided on the second transfer seat 19c, and in the state of the front section of the transfer, the transfer slot 19-1c is located directly below the feeding pipe 18c of the second loader, and in the state of the rear section of the transfer, the transfer slot 19-1c is located directly above the pushing slot 15-1c of the pushing seat 15c.

[0068] Furthermore, the transverse transfer drive mechanism includes a transverse transfer drive cylinder 20c, and the telescopic rod of the transverse transfer drive cylinder 20c is connected to the second transfer seat 19c.

[0069] Furthermore, the inner riveting mechanism also includes a pressing mechanism, which includes a pressing block 21c and a vertical pressing drive mechanism; the pressing mechanism is located directly above the pushing slot 15-1c of the pushing seat 15c.

[0070] Furthermore, the vertical pressing drive mechanism includes a vertical pressing drive cylinder 22c, and the telescopic rod of the vertical pressing drive cylinder 22c is connected to the pressing block 21c.

[0071] Through the above structure, the transfer slot 19-1c of the second transfer seat 19c is first driven by the horizontal transfer driving cylinder 20c to be moved to the bottom of the feeding pipe 18c of the second loader, and the mounting seat 3c is transported to the transfer slot 19-1c of the second transfer seat 19c through the feeding pipe 18c of the second loader, and then the second transfer seat 19c is driven to move horizontally by the horizontal transfer driving cylinder 20c, and the mounting seat 3c is pushed to the top of the pushing slot 15-1c of the pushing seat 15c, so that the mounting seat 3c falls into the pushing slot 15-1c below; then the pressing block 21c is driven to move downward by the vertical pressing driving cylinder 22c, and the pressing block 21c fixes the mounting seat 3c in the pushing slot 15-1c to prevent it from falling during subsequent pushing.

[0072] Combine Figure 12-14 The top rivet driving mechanism includes a top rivet driving cylinder 23c, which is fixedly arranged on the riveting frame 7c, and the telescopic rod of the top rivet driving cylinder 23c is fixedly connected to the top rivet seat 16c.

[0073] Furthermore, the pushing drive mechanism is composed of a top rivet drive cylinder 23c; an elastic pushing assembly is provided between the pushing seat 15c and the top rivet seat 16c, and the elastic pushing assembly includes a pushing spring 24c and an installation guide rod, one end of the installation guide rod is fixed on the top rivet seat 16c, and the other end of the top rivet seat 16c can slide through the pushing seat 15c; the pushing spring 24c is sleeved on the installation guide rod, and the two ends of the pushing spring 24c are respectively pressed against the pushing seat 15c and the top rivet seat 16c; a rivet avoidance hole 15-2c is provided on the pushing seat 15c, and the rivet avoidance hole 15-2c is concentric with the rivet hole of the mounting seat 3c located in the pushing slot 15-1c; one end of the second riveting push rod 17c extends into the rivet avoidance hole 15-2c.

[0074] Through the above structure, under the drive of the top rivet driving cylinder 23c, the top rivet seat 16c pushes the pushing seat 15c close to the pot A through the pushing spring 24c. When the mounting seat 3c in the pushing slot 15-1c of the pushing seat 15c is attached to the outer wall of the pot A (the tail of the rivet 2c passes through the riveting hole of the mounting seat 3c and extends to the riveting avoidance hole 15-2c of the pushing seat 15c), the pushing seat 15c stops moving, and the top rivet driving cylinder 23c continues to drive, and the top rivet seat 16c continues to move with the second riveting push rod 17c (at this time the pushing spring 24c is compressed and deformed), so that the second riveting push rod 17c hits the tail of the rivet 2c along the riveting avoidance hole 15-2c of the pushing seat 15c, thereby achieving riveting.

[0075] Combine Figure 4-Figure 5The lifting drive mechanism includes a lifting drive motor 25c and a lifting transmission assembly, and the lifting transmission assembly includes a lifting screw 26c and a lifting screw nut; the outer riveting mechanism and the inner riveting mechanism are both arranged on the riveting frame 7c, and the riveting frame 7c is fixedly connected to the lifting screw nut.

[0076] Combine Figure 4-Figure 15 The working principle of the above riveting device C is as follows:

[0077] During operation, the pot A is transported upside down to the riveting station; the mounting base 3c is first automatically transported to the pushing slot 15-1c of the pushing base 15c by the second loading mechanism, and then the outer riveting mechanism and the inner riveting mechanism are raised so that the inner riveting mechanism is located in the inner cavity of the pot A and the outer riveting mechanism is located on the outside of the pot A. At this time, the riveting hole of the pot A is located between the first riveting push rod 5c and the second riveting push rod 17c. The rivet 2c is automatically delivered to the front of the first riveting push rod 5c by the first feeding mechanism. At this time, the head of the rivet 2c is close to the first riveting push rod 5c, and the tail of the rivet 2c is close to the inner wall of the pot A; the first pushing riveting drive mechanism pushes the first pushing riveting seat 4c and the first riveting push rod 5c to move toward the inner wall of the pot A, and the first riveting push rod 5c pushes the rivet 2c close to the inner wall of the pot A, so that the tail of the rivet 2c passes through the riveting hole of the pot A, and presses the rivet 2c against the inner wall of the pot A to keep it stationary.

[0078] The pushing drive mechanism drives the pushing seat 15c to bring the mounting seat 3c closer to the pot A. During this process, the tail of the rivet 2c relatively passes through the riveting hole of the mounting seat 3c until the mounting seat 3c is attached to the outer wall of the pot A. The top rivet drive mechanism then drives the top rivet seat 16c closer to the pot A, so that the second riveting push rod 17c pushes against the tail of the rivet 2c at high speed. The tail of the rivet 2c is squeezed and deformed and is wrapped by the rivet groove of the second riveting push rod 17c, thereby completing the riveting work. At this time, the rivet 2c fixes the pot A and the mounting seat 3c together. Finally, all mechanisms are reset, waiting for the riveting work of the next pot A.

[0079] Combine Figure 1 The rotary conveying device D includes a rotary worktable 1d, a rotary drive mechanism for driving the rotary worktable 1d to rotate, and a positioning mechanism arranged on the rotary worktable 1d to position the pot A; in the working state, the rotary worktable 1d sequentially transports the pot A to be assembled to the punching station and the riveting station.

[0080] Combine Figure 1, the positioning mechanism is provided with 6 groups and is arranged on the rotating worktable 1d around the central circumference of the rotating worktable 1d; the punching device B is provided with two groups and is located on the same diameter extension line of the rotating worktable 1d, and the riveting device C is provided with two groups and is located on the same diameter extension line of the rotating worktable 1d; in the working state, two groups of the positioning mechanism are located in the two punching stations, two groups of the positioning mechanism are located in the two riveting stations, one group of the positioning mechanism is located in the loading and unloading stations, and one group of the positioning mechanism is located in the reversing station.

[0081] With the above structure, the pot A to be assembled is first placed in the loading and unloading station. The rotary table 1d then transports the pot A to the punching and riveting stations, where the mounting base on one side of the pot A is riveted. The rotary table 1d then continues to rotate, transporting the pot A to the reversing station. The pot A is rotated 180 degrees, with the mounting base on the other side facing outward. The rotary table 1d then transports the pot A downward to the punching and riveting stations, where the mounting base on the other side of the pot A is riveted. Finally, the pot A is transported to the loading and unloading station, where it is removed and replaced with a new pot A to continue processing. This not only allows for multiple assembly tasks, improving work efficiency, but also reduces the space occupied by the equipment.

[0082] Combine Figure 1 The positioning mechanism includes a positioning plate 2d and a stopper 3d. The positioning plate 2d is fixed to the rotating table 1d and has a hollowed-out working hole. Two stoppers 3d are fixed to the positioning plate 2d, aligned parallel to the radial direction of the rotating table 1d. The two stoppers 3d have arc-shaped positioning surfaces on opposite sides. This structure allows the pot A to be placed upside down on the positioning plate 2d, with the two stoppers 3d providing phase alignment, preventing the pot A from shifting during rotation.

[0083] Combine Figure 1-Figure 5 The automatic assembly method of the pressure cooker of this embodiment comprises the following steps:

[0084] The pot A to be installed is placed on the rotary worktable 1d, and the pot A is positioned and fixed by the positioning mechanism; the rotary worktable 1d is driven to rotate by the rotary drive mechanism, and the pot A is transported to the punching station; the outer punching mechanism and the inner punching mechanism are driven to rise by the punching lifting drive mechanism, so that the inner punching mechanism is located in the inner cavity of the pot A and the outer punching mechanism is located on the outside of the pot A; the die drive mechanism drives the die seat 2b to approach and adhere to the inner side surface of the pot A, and the punch drive mechanism drives the punch punch 1b to quickly approach the pot A, and with the cooperation of the inner die seat 2b, the punch punch 1b punches a rivet hole in the pot A; the outer punching mechanism and the inner punching mechanism are reset, and the punching lifting drive mechanism drives the outer punching mechanism and the inner punching mechanism to descend.

[0085] The rotary worktable 1d is then driven to rotate by the rotary drive mechanism to transport the pot A to the riveting station; the outer riveting mechanism and the inner riveting mechanism are driven to rise by the riveting lifting drive mechanism, so that the inner riveting mechanism is located in the inner cavity of the pot A and the outer riveting mechanism is located on the outside of the pot A; the rivet is pushed through the riveting hole of the pot A by the inner riveting mechanism, and the mounting seat is pushed to the outer wall of the pot A by the outer riveting mechanism. At this time, the tail of the rivet passes through the riveting hole of the mounting seat, and the tail of the rivet is then punched by the outer riveting mechanism, thereby riveting the pot A and the mounting seat together; the outer riveting mechanism and the inner riveting mechanism are reset, and the outer riveting mechanism and the inner riveting mechanism are driven to descend by the riveting lifting drive mechanism; the rotary worktable 1d is then driven to rotate by the rotary drive mechanism to transport the pot A to the next station.

[0086] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. An automatic assembly device for a pressure cooker, characterized in that: It includes a punching device for punching holes on the side of the pot, a riveting device for riveting the mounting base to the pot, and a rotating conveying device for conveying the pot; The punching device includes an outer punching mechanism for punching holes on the outer side of the cookware, an inner punching mechanism for punching holes on the inner side of the cookware, and a punching lifting drive mechanism for driving the outer and inner punching mechanisms to move up and down. The outer punching mechanism includes a punch and a punch driving mechanism for driving the punch toward or away from the outer wall of the cookware. The inner punching mechanism includes a die holder and a die driving mechanism for driving the die holder toward or away from the inner wall of the cookware. The die holder is provided with a punching hole. The riveting device includes an inner riveting mechanism for pushing a rivet through a riveting hole of the pot on the inner side of the pot to achieve riveting, an outer riveting mechanism for pushing a mounting base to the outer wall of the pot on the outer side of the pot to achieve riveting, and a riveting lifting drive mechanism for driving the outer riveting mechanism and the inner riveting mechanism to move up and down; The rotary conveying device includes a rotary worktable, a rotary drive mechanism for driving the rotary worktable to rotate, and a positioning mechanism arranged on the rotary worktable to position the cookware; in the working state, the rotary worktable sequentially conveys the cookware to be assembled to the punching station and the riveting station.

2. The automatic assembly equipment for pressure cookers according to claim 1, characterized in that: The outer punching mechanism further includes a punching base and a punching guide seat, wherein the punching base is connected to the driving end of the punch driving mechanism, and the punch head is fixedly arranged on the punching base; The punching guide seat is connected to the punching base through a relatively movable structure, and a guide reset spring is provided between the punching guide seat and the punching base; the punching guide seat is provided with a guide hole matching the punch head.

3. The automatic assembly equipment for pressure cookers according to claim 2, characterized in that: The punch driving mechanism comprises a punch driving cylinder, and the telescopic rod of the punch driving cylinder is fixedly connected to the punching base.

4. The automatic assembly equipment for pressure cookers according to claim 1, characterized in that: The die seat is provided with a blanking channel, which is located behind the punching hole and is used to transfer the waste materials after punching.

5. The automatic assembly equipment for pressure cookers according to claim 1, characterized in that: The die driving mechanism comprises a die driving cylinder, and a telescopic rod of the die driving cylinder is fixedly connected to the die base.

6. The automatic assembly equipment for pressure cookers according to claim 1, characterized in that: The punching lifting drive mechanism includes a punching lifting drive motor and a punching lifting transmission assembly, and the punching lifting transmission assembly includes a punching lifting seat, a punching lifting screw and a punching lifting screw nut; The outer punching mechanism and the inner punching mechanism are both arranged on a punching lifting seat, and the punching lifting seat is fixedly connected to the punching lifting screw nut.

7. The automatic assembly equipment for pressure cookers according to claim 1, characterized in that: The positioning mechanism is provided with 6 groups and is arranged on the rotating worktable around the central circumference of the rotating worktable; the punching device is provided with two groups and is located on the same diameter extension line of the rotating worktable, and the riveting device is provided with two groups and is located on the same diameter extension line of the rotating worktable; in the working state, two groups of the positioning mechanism are located in two punching stations, two groups of the positioning mechanism are located in two riveting stations, one group of the positioning mechanism is located in the loading and unloading stations, and one group of the positioning mechanism is located in the reversing station.

8. The automatic assembly equipment for pressure cookers according to claim 7, characterized in that: The positioning mechanism includes a positioning plate and a limiting member. The positioning plate is fixedly arranged on the rotating workbench and is provided with a hollow working hole.

9. The automatic assembly equipment for pressure cookers according to claim 8, characterized in that: There are two limiting members fixedly arranged on the positioning plate, and the arrangement direction of the two limiting members is parallel to the radial direction of the rotating workbench; and arc-shaped positioning surfaces are provided on opposite sides of the two limiting members.

10. An automatic assembly method for a pressure cooker automatic assembly device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Place the pot to be installed on the rotating workbench, and use the positioning mechanism to position and fix the pot; The rotary table is driven to rotate by a rotary drive mechanism to transport the pot to the punching station; The outer punching mechanism and the inner punching mechanism are driven to rise by the punching lifting drive mechanism, so that the inner punching mechanism is located in the inner cavity of the pot and the outer punching mechanism is located outside the pot; The die driving mechanism drives the die seat to approach and attach to the inner side of the pot, and the punch driving mechanism drives the punch to quickly approach the pot. With the cooperation of the die seat on the inner side, the punch punch punches a rivet hole on the pot. The outer punching mechanism and the inner punching mechanism are reset, and the outer punching mechanism and the inner punching mechanism are driven to descend by the punching lifting drive mechanism; The rotary workbench is driven to rotate by a rotary drive mechanism to transport the pot to the riveting station; The outer riveting mechanism and the inner riveting mechanism are driven to rise by the riveting lifting drive mechanism, so that the inner riveting mechanism is located in the inner cavity of the pot and the outer riveting mechanism is located outside the pot; The inner riveting mechanism pushes the rivet through the rivet hole of the cookware, and the outer riveting mechanism pushes the mounting base to the outer wall of the cookware. At this time, the tail of the rivet passes through the rivet hole of the mounting base, and the outer riveting mechanism then punches the tail of the rivet to rivet the cookware and the mounting base together. The outer riveting mechanism and the inner riveting mechanism are reset, and the outer riveting mechanism and the inner riveting mechanism are driven to descend by the riveting lifting drive mechanism; The rotary table is driven to rotate by a rotary drive mechanism to transport the pot to the next workstation.

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