Rotary automatic riveting device

Abstract

This utility model belongs to the field of metal processing riveting technology, and particularly relates to a rotary automatic riveting device. The device includes: a rotary bearing mechanism comprising a rotary worktable and bearing fixtures spaced apart along the circumference of the rotary worktable; a metal sheet loading mechanism located on one side of the rotary bearing mechanism; a riveting mechanism comprising a hydraulic cylinder, a connecting member, and a riveting clamping member; the hydraulic cylinder is located on one side of the rotary bearing mechanism, the connecting member is fixed to the output end of the hydraulic cylinder, and there are two riveting clamping members installed spaced apart on the connecting member; a unloading robot is located on one side of the rotary bearing mechanism, and the unloading robot is used to unload the riveted finished product from the bearing fixture. This device achieves full automation of the entire process from workpiece loading, pre-assembly, riveting to finished product unloading through the coordinated work of multiple mechanisms, without the need for manual intervention.

Description

Technical Field

[0001] This application relates to the field of riveting technology for metal parts, and in particular to a rotary automatic riveting device. Background Technology

[0002] Currently, in riveting production scenarios involving small batches or multiple specifications of workpieces, manual riveting is still the most common method. Operators manually place the workpieces to be riveted on a simple fixture, and adjust their position visually or using simple positioning blocks to achieve initial positioning. Subsequently, operators use pneumatic or electric riveting tools to apply pressure to the riveting points on the workpiece to complete the riveting operation. After a single workpiece is riveted, it is manually removed from the fixture and transferred to the next process or storage stage, while new workpieces to be riveted are manually placed to start the next riveting cycle. In this way, operators need to maintain repetitive actions such as holding tools and precise alignment for extended periods, which easily leads to muscle fatigue and decreased concentration. As working hours increase, the operating speed slows down significantly, and the positioning deviation rate increases accordingly, resulting in a gradual decrease in production efficiency.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] In view of at least one of the above technical problems, this application provides a rotary automatic riveting device.

[0005] This application provides a rotary automatic riveting device, the device comprising:

[0006] A rotating bearing mechanism, comprising a rotating worktable and bearing fixtures spaced apart along the circumference of the rotating worktable;

[0007] The metal plate feeding mechanism is located on one side of the rotating bearing mechanism and is used for feeding metal plates.

[0008] A metal sheet feeding mechanism is located on one side of the rotating bearing mechanism, and a metal plate feeding mechanism is used for feeding metal plates.

[0009] The riveting mechanism includes a hydraulic cylinder, a connector, and a riveting clamp. The hydraulic cylinder is located on one side of the rotating bearing mechanism. The connector is fixed to the output end of the hydraulic cylinder. There are two riveting clamps installed on the connector at intervals.

[0010] The unloading robot is located on one side of the rotating bearing mechanism. The unloading robot is used to unload the finished products that have been riveted from the bearing fixture.

[0011] This device, through the coordinated work of multiple mechanisms, achieves full automation of the entire process from workpiece loading, pre-assembly, riveting to finished product unloading, without the need for manual intervention. In addition, the two spaced riveting parts in the riveting mechanism can simultaneously process two riveting points of the workpiece, eliminating the need for multiple adjustments to the riveting position. This reduces the number of riveting actions and ensures the coaxiality and spacing accuracy of multiple riveting points, avoiding workpiece displacement caused by multiple riveting operations.

[0012] In some possible implementations, the riveting component includes a body and rivet joints, the body being fixed to the connector, and the rivet joints being two in number and spaced apart on the body.

[0013] In some possible implementations, the metal plate loading mechanism includes a support base, a first linear cylinder, a rotary cylinder, a pallet, a feeding rack, a lifting assembly, and a transferring assembly. The support base is located on one side of the rotary table. The first linear cylinder is mounted on the support base, and the rotary cylinder is mounted on the output end of the first linear cylinder. The pallet is fixed to the output end of the rotary cylinder, and an opening slot is provided on the edge of the pallet. There are two feeding racks, which are spaced apart on the pallet and are positioned corresponding to the opening slots. The lifting assembly is vertically mounted on the support base and is used to lift the metal plate inside the feeding rack. The transferring assembly is mounted on one side of the lifting assembly.

[0014] In some possible implementations, the lifting assembly includes a first motor, a lead screw drive mechanism, and a lifting component. The first motor is mounted on a support base, the lead screw drive mechanism is vertically mounted on the support base, the lead screw drive mechanism is connected to the output end of the first motor, the lifting component is connected to the output end of the lead screw drive mechanism, and the lifting component is movably disposed in the opening slot or the feeding rack.

[0015] In some possible implementations, the material transfer assembly includes a second linear cylinder, a translation seat, a downward cylinder, and a first suction nozzle. The second linear cylinder is located on one side of the lifting assembly, the translation seat is located on the output end of the second linear cylinder, there are two downward cylinders that are spaced apart on the translation seat, and there are two first suction nozzles that are respectively located on the output end of the downward cylinders.

[0016] In some possible implementations, the metal sheet feeding mechanism includes a metal sheet feeding assembly and a transfer robot. The metal sheet feeding assembly is located on one side of the rotary table and is used for feeding metal sheets. The transfer robot includes a first linear motor, a second linear motor, a connector, a first cylinder, and a second suction nozzle. The first linear motor is located on one side of the metal sheet feeding assembly, the second linear motor is located on the output end of the first linear motor, the connector is connected to the output end of the second linear motor, there are two first cylinders arranged side by side on the connector, and there are two second suction nozzles, each connected to the output end of the first cylinder.

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the rotary automatic riveting device provided in the embodiments of this application;

[0020] Figure 2 yes Figure 1 Schematic diagram of the riveting mechanism;

[0021] Figure 3 yes Figure 1 Schematic diagram of the metal plate loading mechanism;

[0022] In the picture:

[0023] 100. Rotary bearing mechanism; 110. Rotary worktable; 120. Bearing fixture;

[0024] 200. Metal sheet loading mechanism; 210. Linear cylinder; 220. Rotary cylinder; 230. Pallet; 240. Feeding rack;

[0025] 250. Lifting assembly; 260. Material transfer assembly; 251. Lifting component;

[0026] 300. Metal sheet feeding mechanism;

[0027] 400. Riveting mechanism; 410. Hydraulic cylinder; 420. Riveting parts; Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] like Figures 1 to 3 As shown, one embodiment provides a rotary automatic riveting device, which includes: a rotary bearing mechanism 100, a metal plate feeding mechanism 200, a metal sheet feeding mechanism 300, a riveting mechanism 400, and a material unloading robot.

[0030] The rotating support mechanism 100 includes a rotating worktable 110 and support fixtures 120 spaced apart along the circumference of the rotating worktable 110; a metal plate feeding mechanism 200 is located on one side of the rotating support mechanism 100 and is used for feeding metal plates; a metal sheet feeding mechanism 300 is located on one side of the rotating support mechanism 100 and is used for feeding metal plates; the riveting mechanism 400 includes a hydraulic cylinder 410, a connector, and a riveting component 420. The hydraulic cylinder 410 is located on one side of the rotating support mechanism 100, the connector is fixed to the output end of the hydraulic cylinder 410, and there are two riveting components 420 installed at intervals on the connector; a unloading robot is located on one side of the rotating support mechanism 100 and is used to unload the finished products that have been riveted from the support fixtures 120.

[0031] During operation, the metal plates to be riveted are stacked onto the feeding station of the metal plate feeding mechanism 200, and the metal sheets to be riveted are placed in the metal sheet feeding mechanism 300. The rotary worktable 110 of the rotary bearing mechanism 100 is in its initial position, and the bearing fixtures 120 distributed along its circumference are all in an unloaded state.

[0032] The metal plate feeding mechanism 200 is activated, transferring a single metal plate from the feeding station to the first supporting fixture 120 of the rotary table 110.

[0033] Driven by the rotating worktable 110, it rotates at a preset angle along the circumference, transferring the carrying fixture 120 loaded with metal plates to one side of the metal sheet feeding mechanism 300. At the same time, the empty carrying fixture 120 is placed below the metal sheet feeding mechanism 200, ready for the next metal sheet feeding.

[0034] The metal sheet feeding mechanism 300 is activated, transferring the metal sheet from the feeding station to the pre-assembled position of the metal plate in the carrying fixture 120, thus completing the pre-assembly of the metal plate and the metal sheet.

[0035] The rotary table 110 rotates again at a preset angle, transferring the pre-assembled metal sheet support fixture 120 to the riveting station of the riveting mechanism 400. At the same time, the empty support fixture 120 continues to fill the gap below the metal sheet feeding mechanism 300, forming a continuous flow.

[0036] The hydraulic cylinder 410 of the riveting mechanism 400 is activated, and its output end pushes the connecting piece to move downward. The connecting piece drives two spaced riveting pieces 420 to move synchronously closer to the pre-assembled workpiece in the bearing fixture 120. The two riveting pieces 420 are respectively aligned with the two riveting points of the metal plate and the metal sheet, and the riveting action is completed synchronously to realize the fixed connection between the metal plate and the metal sheet.

[0037] The rotary worktable 110 continues to rotate at a preset angle, transferring the finished riveted workpiece to the material handling station of the unloading robot. At the same time, the supporting fixture 120, which loads the pre-assembled workpiece, is positioned at the riveting station to continue riveting.

[0038] The unloading robot starts and removes the finished workpiece from the carrying fixture 120 and transfers it to the finished product collection station.

[0039] This device, through the coordinated work of multiple mechanisms, achieves full automation of the entire process from workpiece loading, pre-assembly, riveting to finished product unloading, without the need for manual intervention. In addition, the two spaced riveting parts 420 in the riveting mechanism 400 can simultaneously process two riveting points of the workpiece, eliminating the need for multiple adjustments to the riveting position. This reduces the number of riveting actions and ensures the coaxiality and spacing accuracy of multiple riveting points, avoiding workpiece displacement caused by multiple riveting operations.

[0040] like Figures 1 to 3 As shown, in some embodiments, the riveting member 420 includes a body and a rivet head. The body is fixed to the connector, and there are two rivet heads spaced apart on the body. In this way, the two rivet heads contact the workpiece simultaneously, and the pressure of the hydraulic cylinder 410 is evenly transmitted to the two rivet heads through the body, avoiding excessive local stress on the workpiece caused by the sequential riveting of a single rivet head, reducing the deformation rate of the metal plate or sheet, and is especially suitable for riveting thin-walled metal workpieces.

[0041] like Figures 1 to 3 As shown, in some embodiments, the metal plate loading mechanism 200 includes a support base, a first linear cylinder 210, a rotary cylinder 220, a pallet 230, a feeding rack 240, a lifting assembly 250, and a transferring assembly 260. The support base is located on one side of the rotary worktable 110. The first linear cylinder 210 is mounted on the support base, and the rotary cylinder 220 is mounted on the output end of the first linear cylinder 210. The pallet 230 is fixed on the output end of the rotary cylinder 220. An opening slot is provided on the edge of the pallet 230. There are two feeding racks 240, which are spaced apart on the pallet 230 and are arranged corresponding to the opening slots. The lifting assembly 250 is vertically mounted on the support base and is used to lift the metal plate in the feeding rack 240. The transferring assembly 260 is mounted on one side of the lifting assembly 250.

[0042] During operation, two stacks of metal plates to be loaded are placed into two spaced feeding racks 240 on the pallet 230. The lifting assembly 250 is initially positioned below the feeding racks 240, and the transfer assembly 260 is initially positioned in a standby position above the lifting assembly 250. The lifting assembly 250 is activated, lifting the metal plate in the first feeding rack 240 upwards. Because the lifting assembly 250 is vertically mounted on the support base and has corresponding slots, the metal plate remains horizontal during the lifting process, preventing stack offset. The transfer assembly 260 is activated, transferring the lifted metal plate from the feeding rack 240 to the support fixture 120 of the rotary table 110. When the metal plates in the first feeding rack 240 are about to run out, the rotary cylinder 220 is activated, which drives the pallet 230 to rotate 180°, rotating the second feeding rack 240 filled with metal plates above the lifting assembly 250, and continuing the lifting and material transfer operation. At this time, the empty feeding rack 240 can be replenished, achieving seamless material replenishment without downtime.

[0043] like Figures 1 to 3 As shown, in some embodiments, the lifting assembly 250 includes a first motor, a lead screw transmission mechanism, and a lifting member 251. The first motor is mounted on a support base, the lead screw transmission mechanism is vertically mounted on the support base, the lead screw transmission mechanism is connected to the output end of the first motor, and the lifting member 251 is connected to the output end of the lead screw transmission mechanism. The lifting member 251 is movably disposed in the opening slot and the feeding rack 240.

[0044] During operation, after a metal plate is loaded into the feeding rack 240, the lifting assembly 250 is activated. The first motor outputs power, driving the connected lead screw transmission mechanism. Since the output end of the lead screw transmission mechanism is connected to the lifting member 251, the rotational motion of the lead screw is converted into the vertical linear motion of the lifting member 251. The lifting member 251 extends into the feeding rack 240 along the opening slot, contacting the bottom layer of the stacked metal plates. It moves upward with the operation of the lead screw transmission mechanism, lifting the metal plates to a preset height. After the transfer assembly 260 removes the top layer of metal plates, the first motor drives the lead screw to rotate in the opposite direction, and the lifting member 251 moves downward, continuing to lift the remaining metal plates until all the metal plates in the feeding rack 240 are removed. The lifting member 251 then returns to its initial position, waiting for the next feeding rack 240 to switch before restarting.

[0045] like Figures 1 to 3 As shown, in some embodiments, the material transfer assembly 260 includes a second linear cylinder 210, a translation seat, a downward cylinder, and a first suction nozzle. The second linear cylinder 210 is disposed on one side of the lifting assembly 250, the translation seat is disposed on the output end of the second linear cylinder 210, there are two downward cylinders disposed at intervals on the translation seat, and there are two first suction nozzles disposed on the output end of the downward cylinders respectively.

[0046] During operation, after the lifting assembly 250 raises the metal plate to a preset height, the material transfer assembly 260 is activated, and the second linear cylinder 210 outputs power, driving the translation seat to move horizontally above the metal plate. At this time, the two spaced-apart downward cylinders on the translation seat are in a retracted state, and the first suction nozzle is in a high position. The downward cylinder is activated, driving the first suction nozzle downward until it contacts the surface of the metal plate. The first suction nozzle firmly fixes the metal plate by negative pressure adsorption. Then, the downward cylinder retracts, driving the first suction nozzle with the adsorbed metal plate back to its high position. The second linear cylinder 210 is activated again, driving the translation seat, the downward cylinder, and the first suction nozzle with the adsorbed metal plate to move horizontally above the support fixture 120 of the rotary worktable 110. The downward cylinder extends again, placing the metal plate into the support fixture 120. The first suction nozzle releases the negative pressure, completing the transfer of the metal plate. Afterward, all components are reset, ready for the next material transfer.

[0047] like Figures 1 to 3 As shown, in some embodiments, the metal sheet feeding mechanism 300 includes a metal sheet feeding assembly and a transfer robot. The metal sheet feeding assembly is disposed on one side of the rotary table 110 and is used for feeding metal sheets. The transfer robot includes a first linear motor, a second linear motor, a connector, a first cylinder, and a second suction nozzle. The first linear motor is disposed on one side of the metal sheet feeding assembly, the second linear motor is disposed on the output end of the first linear motor, the connector is connected to the output end of the second linear motor, there are two first cylinders arranged side by side on the connector, and there are two second suction nozzles, each connected to the output end of the first cylinder.

[0048] During operation, the metal sheet feeding assembly (such as a vibratory feeder, hopper, or other conventional feeding structure) is activated, conveying the metal sheets one by one to the feeding station. The transfer robot is activated, and the first linear motor outputs power, driving the second linear motor to move, causing the connector to move directly above the metal sheet feeding station. The two parallel first cylinders on the connector are activated, extending their output ends downwards, driving the connected second suction nozzles closer to the metal sheets. Each second suction nozzle picks up one metal sheet, gripping it through negative pressure suction. Subsequently, the first cylinders retract, causing the second suction nozzles with the metal sheets to return to their high positions. The first and second linear motors work together again, moving the connector, the first cylinders, and the second suction nozzles with the metal sheets, transferring the metal sheets to above the metal plate within the rotating worktable 110 and the support fixture 120. The first cylinders extend again, placing the metal sheet in the preset assembly position on the metal plate, and the second suction nozzles release the metal sheet, completing the pre-assembly of the metal sheet and the metal plate. Afterward, all components of the transfer robot are reset, ready for the next gripping operation.

[0049] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 limitations on this application.

[0050] In the description of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0052] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In the embodiments of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0054] The above are merely preferred embodiments of this application and do not constitute any limitation on this application. Any person skilled in the art can make many possible variations and modifications to the technical solution of this application, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this application. Therefore, all equivalent changes made based on the shape, structure, and principle of this application without departing from the content of the technical solution of this application should be covered within the protection scope of this application.

Claims

1. A rotary dial automatic riveting device, characterized by, The device includes: A rotating bearing mechanism, comprising a rotating worktable and bearing fixtures spaced apart along the circumference of the rotating worktable; A metal plate feeding mechanism is located on one side of the rotating bearing mechanism and is used for feeding metal plates. A metal sheet feeding mechanism is provided on one side of the rotating bearing mechanism, and the metal plate feeding mechanism is used for feeding metal plates. A riveting mechanism, comprising a hydraulic cylinder, a connecting member, and a riveting clamp, wherein the hydraulic cylinder is disposed on one side of the rotating bearing mechanism, the connecting member is fixed to the output end of the hydraulic cylinder, and two riveting clamps are installed on the connecting member at intervals; A material unloading robot is located on one side of the rotating bearing mechanism. The material unloading robot is used to unload the finished product that has been riveted from the bearing fixture.

2. The rotary dial automatic riveting device of claim 1, wherein, The riveting component includes a main body and a rivet joint. The main body is fixed to the connecting component, and the rivet joint has two parts that are spaced apart on the main body.

3. The rotary dial automatic riveting device of claim 1, wherein, The metal plate loading mechanism includes a support base, a first linear cylinder, a rotary cylinder, a pallet, a feeding rack, a lifting assembly, and a transferring assembly. The support base is located on one side of the rotary worktable. The first linear cylinder is mounted on the support base. The rotary cylinder is mounted on the output end of the first linear cylinder. The pallet is fixed to the output end of the rotary cylinder. An opening slot is provided on the edge of the pallet. There are two feeding racks, spaced apart on the pallet, and the feeding racks are arranged corresponding to the opening slots. The lifting assembly is vertically mounted on the support base and is used to lift the metal plate in the feeding rack. The transferring assembly is mounted on one side of the lifting assembly.

4. The rotary dial automatic riveting device of claim 3, wherein, The lifting assembly includes a first motor, a lead screw transmission mechanism, and a lifting component. The first motor is mounted on the support base, the lead screw transmission mechanism is vertically mounted on the support base, the lead screw transmission mechanism is connected to the output end of the first motor, the lifting component is connected to the output end of the lead screw transmission mechanism, and the lifting component is movably disposed in the opening slot and the feeding rack.

5. The rotary dial automatic riveting device of claim 3, wherein, The material transfer assembly includes a second linear cylinder, a translation seat, a downward cylinder, and a first suction nozzle. The second linear cylinder is disposed on one side of the lifting assembly, the translation seat is disposed on the output end of the second linear cylinder, there are two downward cylinders disposed at intervals on the translation seat, and there are two first suction nozzles disposed on the output ends of the downward cylinders respectively.

6. The rotary dial automatic riveting device of claim 1, wherein, The metal sheet feeding mechanism includes a metal sheet feeding assembly and a transfer robot. The metal sheet feeding assembly is located on one side of the rotary table and is used for feeding metal sheets. The transfer robot includes a first linear motor, a second linear motor, a connector, a first cylinder, and a second suction nozzle. The first linear motor is located on one side of the metal sheet feeding assembly, and the second linear motor is located on the output end of the first linear motor. The connector is connected to the output end of the second linear motor. There are two first cylinders arranged side by side on the connector, and there are two second suction nozzles, each connected to the output end of the first cylinder.

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