An automated riveting device

The design of automated riveting equipment has enabled automated conveying and riveting of sheet metal parts and nuts, solving the problems of high labor intensity and low efficiency caused by manual operation in the existing technology, and improving processing efficiency and precision.

CN117444072BActive Publication Date: 2026-03-10WEITANG AUTOMOTIVE STAMPING TECH (WUXI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-11-16
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

In the existing technology, the installation of sheet metal parts and nuts requires manual operation, which results in high labor intensity and long time when mass production is carried out, reducing the applicability of the riveting device.

Method used

An automated riveting device is adopted, including a sheet metal feeding mechanism, a nut feeding mechanism, a riveting assembly, and a riveting fixture. The sheet metal parts and nuts are transported to the riveting position through an automated production line, and the riveting assembly is used to realize automatic riveting, reducing manual operation.

Benefits of technology

The automated process of riveting nuts for sheet metal parts has been realized, reducing the labor intensity of workers, improving processing efficiency and installation accuracy, and enhancing the applicability of riveting equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to an automated riveting device, comprising a frame, on which are mounted an automatic sheet metal feeding mechanism for feeding sheet metal parts, an automatic nut feeding mechanism for feeding nuts, a riveting assembly for riveting nuts, and riveting fixtures for installing sheet metal parts. The sheet metal feeding mechanism includes a sheet metal moving assembly, a sheet metal conveying assembly, and a rotating assembly. The rotating assembly is mounted on the frame, and several riveting fixtures are mounted on the rotating assembly. The sheet metal moving assembly includes a moving plate, limit posts, a moving motor, a rotating gear, and a fixed rack. The moving plate is slidably fitted onto the frame, the fixed rack is connected to the moving plate, the moving motor is connected to the frame, and the rotating gear is connected to the moving motor and meshes with the fixed rack. Several sets of limit posts are connected to the moving plate, with several limit posts in each set. The sheet metal conveying assembly is mounted on the frame. This invention improves the applicability of the riveting device to the processing of automotive sheet metal parts.
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Description

Technical Field

[0001] This invention relates to the field of automotive parts manufacturing technology, and in particular to an automated riveting device. Background Technology

[0002] The automobile manufacturing process involves many parts, among which there are a great many types and models of sheet metal parts. In order to facilitate the installation of sheet metal parts, nuts need to be installed in specific positions on the sheet metal parts. Therefore, a riveting device is needed to rivet the nuts onto the sheet metal parts.

[0003] Chinese Patent No. CN219074264U discloses a rapid riveting device, which includes a pneumatic punch press, a sheet metal bracket, and several press-fit nuts. The sheet metal bracket is provided with a riveting surface that mates with the press-fit nuts. The pneumatic punch press can press-fit the press-fit nuts to the riveting surface of the sheet metal bracket. The pneumatic punch press is connected to an upper die plate, and a lower die plate is provided at the bottom of the upper die plate. The sheet metal bracket and the press-fit nuts are both placed on the top of the lower die plate. The lower die plate is provided with a riveting table surface that mates with the riveting surface of the sheet metal bracket. The area of ​​the riveting table surface is larger than the area of ​​the riveting surface of the sheet metal bracket. The riveting table surface is provided with a nut groove that mates with the press-fit nuts. The area of ​​the lower surface of the upper die plate is larger than the area of ​​the riveting surface of the sheet metal bracket, thus achieving the desired effect.

[0004] Regarding the aforementioned technologies, in the prior art, the sheet metal part is placed on the lower mold mother plate, the rivet nut is placed on the sheet metal part, and finally the upper mold pressure plate is used to apply pressure to the rivet nut to rivet onto the sheet metal part. However, in the prior art, both the sheet metal part and the nut need to be installed manually. In the case of mass production of sheet metal parts, this requires a lot of labor intensity for workers and also prolongs the working time. Therefore, the existing riveting device is not suitable for mass production of sheet metal parts, reducing the applicability of the riveting device to automotive sheet metal part processing. Summary of the Invention

[0005] In order to improve the applicability of riveting equipment to the processing of automotive sheet metal parts, this application provides an automated riveting equipment.

[0006] The automated riveting equipment provided in this application adopts the following technical solution:

[0007] An automated riveting device includes a frame, on which are mounted an automatic sheet metal feeding mechanism for feeding sheet metal parts, an automatic nut feeding mechanism for feeding nuts, a riveting assembly for riveting the nuts, and riveting fixtures for installing the sheet metal parts. The sheet metal feeding mechanism includes a sheet metal moving assembly, a sheet metal conveying assembly, and a rotating assembly. The rotating assembly is mounted on the frame, and several riveting fixtures are mounted on the rotating assembly. The rotating assembly moves the riveting fixtures to the riveting assembly. The sheet metal moving assembly includes a moving plate, a limiting post, a moving motor, a rotating gear, and a fixing device. A rack and pinion assembly is provided. The movable plate is slidably fitted onto the frame. A fixed rack and pinion assembly is connected to the movable plate and parallel to the sliding direction of the movable plate. A movable motor is connected to the frame. A rotating gear is connected to the output shaft of the movable motor and meshes with the fixed rack and pinion assembly. Several sets of limiting posts are connected to the movable plate. Each set of limiting posts has several posts. The limiting posts are used to limit the sheet metal parts. A sheet metal conveying assembly is provided on the frame. The sheet metal conveying assembly is used to convey the sheet metal parts on the sheet metal movable assembly to the riveting fixture.

[0008] By adopting the above technical solution, when riveting nuts, the worker stacks sheet metal parts between several limiting posts, and then uses the sheet metal conveying assembly to convey the sheet metal parts to the riveting fixture. After a set of sheet metal parts is removed, the worker starts the moving motor, which makes the rotating gear rotate, the fixed rack move, and drives the moving plate to move the next set of sheet metal parts to the suction station of the sheet metal conveying assembly. The rotating assembly moves the riveting fixture with the sheet metal parts installed to the output end of the riveting assembly. During this process, the nut feeding mechanism automatically conveys the nuts to the riveting fixture. Finally, the riveting assembly rivets the nuts onto the sheet metal parts, achieving the effect of automatically riveting nuts onto the sheet metal parts. In the case of mass sheet metal processing, workers stack a large number of sheet metal parts on a moving plate. The sheet metal conveying assembly and the riveting fixture work together to automatically install the sheet metal parts. In addition, the nut feeding mechanism automatically delivers nuts to the riveting fixture. This avoids the need for workers to manually install sheet metal parts and nuts, reduces the labor intensity of workers, shortens the processing time of sheet metal parts, improves the processing efficiency of sheet metal parts, and enhances the applicability of the riveting equipment to automotive sheet metal processing.

[0009] Optionally, the sheet metal conveying assembly includes a conveying cylinder, a lifting cylinder, and suction cups. The conveying cylinder is connected to the frame, the lifting cylinder is connected to the moving end of the conveying cylinder, and several suction cups are connected to the output end of the lifting cylinder. The suction cups are used to pick up the sheet metal parts.

[0010] By adopting the above technical solution, when conveying sheet metal parts, the operator starts the conveying cylinder to move the lifting cylinder to the sheet metal part suction station, starts the lifting cylinder to lower the suction cup and pick up the sheet metal part, and then uses the conveying cylinder to move the sheet metal part to the riveting fixture, thus achieving the effect of conveying sheet metal parts.

[0011] Optionally, the frame is provided with a pre-set fixture, which includes a pre-set seat, a pre-set column, and a limiting block. The pre-set seat is connected to the frame, several pre-set columns are connected to the pre-set seat, several limiting blocks are connected to the pre-set seat, and a guide slope is provided on the limiting block. A moving frame is connected to the moving end of the conveying cylinder, and two lifting cylinders are provided on the moving frame. The two lifting cylinders work synchronously.

[0012] By adopting the above technical solution, the sheet metal parts are directly conveyed to the riveting fixture, which may lead to a misalignment between the relative positions of the sheet metal parts and the riveting fixture. To address this, the operator uses one lifting cylinder to pick up the sheet metal parts and place them onto a pre-set fixture, while another lifting cylinder moves the sheet metal parts from the pre-set fixture to the riveting fixture. The two lifting cylinders operate synchronously. The operator further corrects the relative position between the sheet metal parts and the suction cups using the pre-made fixture, allowing the sheet metal parts to be installed more accurately on the riveting fixture and improving the installation precision.

[0013] Optionally, the frame is provided with a lifting assembly, which includes a lift, a lifting column, and a lifting plate. The lift is connected to the frame, the lifting column is connected to the output end of the lift, and the lifting plate is connected to the top of the lifting column. The lifting plate is located directly below the suction station of the sheet metal conveying assembly. The moving plate has clearance holes at the positions of each set of limiting columns. The lifting plate passes through the clearance holes and abuts against the sheet metal part.

[0014] With the above technical solution, the stroke of the lifting cylinder is limited. To increase the number of sheet metal parts that can be stacked, and to allow more sheet metal parts to be stacked on the moving plate, it is necessary to set up a technical means to increase the height of the stacked sheet metal parts. When lifting sheet metal parts, the operator starts the lifting machine, causing the lifting column to rise, which in turn drives the lifting plate to rise. Through the clearance hole, the lifting plate contacts the lowest sheet metal part. For each sheet metal part that is sucked away, the lifting plate rises a distance equal to the thickness of one sheet metal part.

[0015] Optionally, the rotating assembly includes a speed reducer, a rotating disk, and a proximity sensor. The speed reducer is connected to the frame, the rotating disk is horizontally positioned and connected to the output shaft of the speed reducer, and several riveting fixtures are arranged on the rotating disk, evenly distributed circumferentially around the axis of the rotating disk. The rotation path of each riveting fixture passes through the riveting position of the riveting assembly. The proximity sensor is mounted on the frame, and the rotating disk has a detection hole corresponding to the position of each riveting fixture. When a riveting fixture is located at the riveting position of the riveting assembly, the detection hole aligns with the sensing end of the proximity sensor. A controller is connected to the riveting assembly, and both the proximity sensor and the speed reducer are electrically connected to the controller.

[0016] By adopting the above technical solution, when conveying sheet metal parts to the riveting assembly, the operator starts the reducer through the controller, which makes the rotating disk rotate and drives the riveting fixture to move until the detection hole aligns with the sensing end of the proximity sensor. The proximity sensor sends an electrical signal to the controller, which causes the control system to stop the reducer. At this time, the sheet metal part on one of the riveting fixtures is located at the riveting position of the riveting assembly, thus achieving the effect of automatically conveying sheet metal parts to the riveting assembly.

[0017] Optionally, the nut feeding mechanism includes a nut conveying assembly and a nut pushing assembly. The nut conveying assembly includes a vibratory plate, a conveying hose, and an air supply hose. The vibratory plate is connected to the frame. The conveying hose is connected between the discharge end of the vibratory plate and the nut pushing assembly. One end of the air supply hose is connected to the conveying hose, and the other end is connected to an air source.

[0018] By adopting the above technical solution, when conveying nuts, the workers use a vibratory feeder to convey the nuts into the conveying hose, and in conjunction with the air supply hose, air is delivered into the conveying hose to push the nuts to move within the conveying hose and into the nut pushing assembly, thus achieving the effect of conveying nuts.

[0019] Optionally, the nut pushing assembly includes a pushing cylinder, a mounting cylinder, a pushing pin, a feeding box, a stop, and a reset component. The mounting cylinder is mounted on the frame. The pushing cylinder is connected to one end of the mounting cylinder. The pushing pin is connected to the output end of the pushing cylinder and faces the riveting fixture. A movable ring is slidably fitted inside the mounting cylinder, and the pushing pin is connected to the movable ring. A pin outlet hole is opened at the other end of the mounting cylinder, and the pushing pin is slidably fitted to the pin outlet hole. The feeding box is connected to the other end of the mounting cylinder. The feeding end of the feeding box is connected to the conveying hose, and the discharging end of the feeding box is aligned with the pushing pin. The stop is rotatably connected to the feeding box. When in the initial position, the stop blocks the discharging end of the feeding box. The reset component is connected between the stop and the feeding box, and the reset component is used to return the stop to the initial position.

[0020] By adopting the above technical solution, when the nut is pushed, the nut enters the outlet end of the feed box, and then the pushing cylinder is activated to move the pushing pin, which drives the moving ring to move inside the fixed cylinder. The pushing pin drives the nut to move out of the feed box quickly and is transported to the riveting fixture. At this time, the stop rotates. When the pushing pin returns to the fixed cylinder, the stop returns to the initial position due to the effect of the reset component to block the next nut, thus achieving the effect of pushing the nut to the riveting fixture.

[0021] Optionally, the riveting fixture includes a fixed base, a mounting platform, positioning pins, a support pin, and an ejector spring. The fixed base is mounted on the rotating assembly, the mounting platform is mounted on the fixed base, several positioning pins are connected on the mounting platform, a fixed cylinder is connected between the fixed base and the mounting platform, the support pin is slidably fitted inside the fixed cylinder, the ejector spring is disposed inside the fixed cylinder and located between the fixed base and the support pin, and the push pin faces the top of the support pin.

[0022] By adopting the above technical solution, when installing sheet metal parts, the sheet metal conveying assembly places the sheet metal parts on the mounting table, so that several positioning posts and support posts pass through the sheet metal parts, ensuring that the sheet metal parts will not shift on the mounting table, thus achieving the effect of installing sheet metal parts.

[0023] Optionally, the riveting assembly includes a riveting machine, an upper pressure seat, and a pressure column. The riveting machine is connected to the frame, the controller is connected to the riveting machine, the upper pressure seat is connected to the output end of the riveting machine, and the pressure column is connected to the upper pressure seat. The pressure column is used to apply pressure to the nut.

[0024] By adopting the above technical solution, the workers install the upper pressure seat at the output end of the riveting machine and install the pressure column on the upper pressure seat. When riveting the nut, the pressure column applies pressure to the support column, and the support column descends until the nut is pressed by the pressure column and riveted to the sheet metal part. Then the support column returns to the initial position under the action of the ejection spring, thus achieving the effect of riveting the nut on the sheet metal part.

[0025] Optionally, a detection assembly is provided on one side of the frame. The detection assembly includes a first conveyor frame, a detection machine, a second conveyor frame, a scrap bin, and a qualified bin. The first conveyor frame is connected to one side of the frame. A delivery assembly is provided on the frame to transport the riveted sheet metal parts to the first conveyor frame. The second conveyor frame is located at the outlet end of the first conveyor frame. The detection machine is located between the first and second conveyor frames. The scrap bin is located on one side of the second conveyor frame. A pusher is provided on the other side of the second conveyor frame. The pusher is used to push unqualified sheet metal parts into the scrap bin. The qualified bin is located at the outlet end of the second conveyor frame.

[0026] By adopting the above technical solution, when inspecting sheet metal parts, the staff uses the inspection component to transport the riveted sheet metal parts to the first conveyor frame. The first conveyor frame then transports the sheet metal parts to the inspection machine. The inspection machine takes pictures of various positions of the sheet metal parts to observe the riveting condition of the nuts. If the riveting effect of the nuts does not meet the requirements, the sheet metal parts are pushed into the scrap bin by the pusher when they move on the second conveyor frame. If the riveting effect of the nuts meets the requirements, the sheet metal parts are moved into the qualified bin through the second conveyor frame, thus achieving the effect of automatic inspection and screening of sheet metal parts.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. When pressing nuts, the worker stacks sheet metal parts between several limit posts, and then uses the sheet metal conveying assembly to transport the sheet metal parts to the pressing fixture. After a set of sheet metal parts is removed, the worker starts the moving motor, which makes the rotating gear rotate, the fixed rack move, and drives the moving plate to move the next set of sheet metal parts to the suction station of the sheet metal conveying assembly. The rotating assembly moves the pressing fixture with the sheet metal parts installed to the output end of the pressing assembly. During this process, the nut feeding mechanism automatically transports the nuts to the pressing fixture. Finally, the pressing assembly presses the nuts onto the sheet metal parts, achieving the effect of automatically pressing nuts onto the sheet metal parts. In the case of mass sheet metal processing, workers stack a large number of sheet metal parts on a moving plate and automatically install the sheet metal parts by using the sheet metal conveying assembly and the riveting fixture. In addition, the nut feeding mechanism automatically delivers nuts to the riveting fixture, which can avoid workers manually installing sheet metal parts and nuts, reduce the labor intensity of workers, shorten the processing time of sheet metal parts, improve the processing efficiency of sheet metal parts, and improve the applicability of riveting equipment to automotive sheet metal processing.

[0029] 2. When sheet metal parts are directly conveyed to the riveting fixture, there is a possibility of misalignment between the sheet metal parts and the riveting fixture. To address this, a lifting cylinder is used to pick up the sheet metal parts from a pre-set fixture, and another lifting cylinder is used to transfer the sheet metal parts from the pre-set fixture to the riveting fixture. Both lifting cylinders operate synchronously. By using the pre-made fixture, the operator further corrects the relative position between the sheet metal parts and the suction cups, allowing the sheet metal parts to be installed more accurately on the riveting fixture, thus improving the installation accuracy of the sheet metal parts on the riveting fixture.

[0030] 3. When pushing the nut, the nut enters the outlet end of the feed box, and then the pushing cylinder is activated to move the pushing pin, which drives the moving ring to move inside the fixed cylinder. The pushing pin drives the nut to move out of the feed box quickly and is transported to the riveting fixture. At this time, the stop rotates. When the pushing pin returns to the fixed cylinder, the stop returns to the initial position due to the effect of the reset component to block the next nut, thus achieving the effect of pushing the nut to the riveting fixture. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the automated riveting equipment in the embodiments of this application.

[0032] Figure 2 This is a schematic diagram of the sheet metal moving component and the grating sensor in the embodiments of this application.

[0033] Figure 3 This is an exploded view used in the embodiments of this application to illustrate the structure of the sheet metal moving component and the lifting component.

[0034] Figure 4This is a schematic diagram of the nut feeding mechanism and rotating assembly in the embodiments of this application.

[0035] Figure 5 This is a schematic diagram of the structure of the rotating component and the sheet metal conveying component in the embodiments of this application.

[0036] Figure 6 yes Figure 4 Enlarged view of point A in the middle.

[0037] Figure 7 This is a schematic diagram of the rotating component in an embodiment of this application.

[0038] Figure 8 This is a schematic diagram of the riveting fixture in the embodiments of this application.

[0039] Figure 9 This is a cross-sectional view used in the embodiments of this application to illustrate the support column and ejector spring structure.

[0040] Figure 10 This is a schematic diagram of the riveting assembly in an embodiment of this application.

[0041] Figure 11 This is a schematic diagram of the upper pressure seat in an embodiment of this application.

[0042] Figure 12 This is a schematic diagram of the nut feeding mechanism in the embodiments of this application.

[0043] Figure 13 This is a schematic diagram of the nut pushing assembly in an embodiment of this application.

[0044] Figure 14 This is a cross-sectional view used in the embodiments of this application to illustrate the structure of the nut pushing assembly.

[0045] Figure 15 This is a schematic diagram of the structure of the auxiliary push component in the embodiments of this application.

[0046] Figure 16 This is a schematic diagram of the detection component in an embodiment of this application.

[0047] Figure 17 This is a schematic diagram of the structure of the collection box in an embodiment of this application.

[0048] Figure 18 This is a schematic diagram of the pusher and waste bin in the embodiments of this application.

[0049] Figure 19 This is a schematic diagram of the structure of the qualified box in the embodiments of this application.

[0050] Figure 20 This is a schematic diagram of the structure of the flipping component in the embodiments of this application.

[0051] Explanation of reference numerals in the attached drawings: 01, frame; 011, inspection assembly; 012, collection box; 013, grating sensor; 1, sheet metal loading mechanism; 11, sheet metal moving assembly; 111, moving plate; 1111, clearance hole; 112, limit post; 113, moving motor; 114, rotating gear; 115, fixed rack; 12, sheet metal conveying assembly; 121, conveying cylinder; 1211, moving frame; 122, lifting cylinder; 123, suction cup; 13, rotating assembly; 131, reducer; 132, rotating disk; 132 1. Detection hole; 133. Proximity sensor; 14. Lifting assembly; 141. Elevator; 142. Lifting column; 143. Lifting plate; 2. Nut feeding mechanism; 21. Nut conveying assembly; 211. Vibratory feeder; 212. Conveying hose; 213. Air supply hose; 22. Nut pushing assembly; 221. Pushing cylinder; 222. Mounting cylinder; 2221. Moving ring; 2222. Needle outlet; 223. Pushing needle; 224. Feed box; 225. Baffle; 226. Reset component; 23. Adjusting assembly; 231. Adjustment... 232. Adjusting block; 2321. Fixing column; 233. Clamping block; 24. First laser sensor; 25. Discharge box; 251. Discharge channel; 26. Auxiliary push assembly; 261. Auxiliary push cylinder; 262. Push plate; 263. Second laser sensor; 3. Riveting assembly; 31. Riveting machine; 311. Controller; 32. Upper pressure seat; 33. Pressing column; 4. Riveting fixture; 41. Fixing seat; 42. Mounting platform; 43. Positioning column; 44. Support column; 45. Ejection spring; 5. Detection assembly; 51. First 511 Conveyor frame; 52 Baffle; 53 Detector; 54 Second conveyor frame; 55 Pusher; 56 Push plate; 57 Fourth laser sensor; 58 Waste bin; 59 Qualified bin; 50 Work frame; 60 Pre-set tooling; 61 Pre-set seat; 62 Pre-set column; 63 Limiting block; 7 Laser marking machine; 80 Opening and closing assembly; 81 Opening and closing cylinder; 82 Opening and closing plate; 83 Third laser sensor; 90 Tilting assembly; 91 Rotary cylinder; 92 Rotating shaft; 921 Counterweight box; 93 Tilting plate. Detailed Implementation

[0052] The following is in conjunction with the appendix Figure 1-20 This application will be described in further detail.

[0053] This application discloses an automated riveting device. (Refer to...) Figure 1 The automated riveting equipment includes a frame 01, on which are installed a sheet metal feeding mechanism 1 for automatically feeding sheet metal parts, a nut feeding mechanism 2 for automatically feeding nuts, a riveting assembly 3 for riveting nuts, a riveting fixture 4 for installing sheet metal parts, and a detection assembly 5 for detecting whether the sheet metal parts are qualified.

[0054] Workers use the sheet metal feeding mechanism 1 to automatically install the sheet metal parts onto the riveting fixture 4. Then, the nut feeding mechanism 2 transports the nuts to the riveting fixture 4. The riveting assembly 3 then rivets the nuts onto the sheet metal parts. Finally, the detection assembly 5 checks whether the sheet metal parts meet the standards, thus realizing the automated processing of sheet metal parts.

[0055] Reference Figure 1 , Figure 2 and Figure 3 The sheet metal loading mechanism 1 includes a sheet metal moving assembly 11, a sheet metal conveying assembly 12, and a rotating assembly 13. Both the sheet metal conveying assembly 12 and the rotating assembly 13 are mounted on a frame 01. The sheet metal moving assembly 11 includes a moving plate 111, limiting posts 112, a moving motor 113, a rotating gear 114, and a fixed rack 115. A sliding rail is bolted to the frame 01, and several sliding seats are bolted to the bottom wall of the moving plate 111, with the sliding seats slidably engaged with the sliding rail. Several sets of limiting posts 112 are provided on the moving plate 111; in this embodiment, four sets are used as an example, with four limiting posts 112 in each set. The limiting posts 112 are bolted to the moving plate 111. The four limiting posts 112 are used to restrict the sheet metal parts, which are stacked between the four limiting posts 112.

[0056] Reference Figure 2 and Figure 3 The moving motor 113 is bolted to the frame 01, and the rotating gear 114 is fixedly connected to the output shaft of the moving motor 113. The fixed rack 115 is bolted to the side of the moving plate 111 and is parallel to the moving direction of the moving plate 111. The fixed rack 115 meshes with the rotating gear 114.

[0057] Reference Figure 2 and Figure 3 The frame 01 is equipped with a lifting assembly 14, which includes a lift 141, a lifting column 142, and a lifting plate 143. The lift 141 is a screw jack, the lifting column 142 is fixedly connected to the output end of the lift 141, and the lifting plate 143 is fixedly connected to the top of the lifting column 142. The lifting plate 143 is a circular plate. The movable plate 111 has clearance holes 1111 at the positions corresponding to each set of limit columns 112. The diameter of the clearance holes 1111 is larger than the diameter of the lifting plate 143.

[0058] Workers use the sheet metal conveying assembly 12 to remove the sheet metal parts from the four limiting columns 112. Then, the lifting platform 141 is started, which drives the lifting column 142 to rise, causing the lifting plate to rise. The lifting plate lifts the sheet metal parts by the thickness of one sheet metal part. After a set of sheet metal parts has been removed, the moving motor 113 is started, which causes the rotating gear 114 to rotate, driving the fixed rack 115 to move, causing the moving plate 111 to move until the clearance hole 1111 of the upper and lower set of sheet metal parts on the moving plate 111 is aligned with the lifting plate 143, thus achieving the effect of automatically supplying the sheet metal conveying assembly 12 to pick up the sheet metal parts.

[0059] Reference Figure 4 and Figure 5 The sheet metal conveying assembly 12 includes a conveying cylinder 121, a lifting cylinder 122, and suction cups 123. A support frame is bolted to the frame 01, and the conveying cylinder 121 is fixedly connected to the top of the support frame. A moving frame 1211 is bolted to the moving end of the conveying cylinder 121, and one lifting cylinder 122 is bolted to each end of the moving frame 1211. The two lifting cylinders 122 are activated synchronously. A connecting frame is fixedly connected to the output end of the lifting cylinder 122, and several suction cups 123 are threaded through the connecting frame. In this embodiment, four suction cups are used as an example.

[0060] Reference Figure 4 and Figure 6 The frame 01 is equipped with a pre-set fixture 6, which includes a pre-set base 61, pre-set columns 62, and limiting blocks 63. A fixing frame is bolted to the frame 01, and the pre-set base 61 is bolted to the fixing frame. Several pre-set columns 62 are fixedly connected to the pre-set base 61; in this embodiment, three are used as an example. Several limiting blocks 63 are bolted to the pre-set base 61; in this embodiment, five are used as an example. Each limiting block 63 is provided with a guide slope.

[0061] Reference Figure 1 , Figure 5 and Figure 7 The rotating assembly 13 includes a reducer 131, a rotating disk 132, and a proximity sensor 133. The reducer 131 is bolted to the frame 01, and the rotating disk 132 is bolted to the output end of the reducer 131. A fixing plate is bolted to the frame 01, and several proximity sensors 133 are mounted on the fixing plate; in this embodiment, three are used as an example. The rotating disk 132 has three detection holes 1321 at positions corresponding to the fixing seat 41, and the proximity sensors 133 are located on the movement path of the detection holes 1321.

[0062] Reference Figure 5 , Figure 8 and Figure 9The riveting fixture 4 includes a fixed base 41, a mounting platform 42, positioning columns 43, supporting columns 44, and an ejector spring 45. Several fixed bases 41 are bolted to the rotating disk 132; in this embodiment, six are used as an example, and the six fixed bases 41 are evenly distributed circumferentially around the axis of the rotating disk 132. The mounting platform 42 is bolted to the top surface of the fixed base 41. Several positioning columns 43 are fixedly connected to the mounting platform 42; in this embodiment, two are used as an example. The top of the positioning column 43 is provided with a guide cone surface. A fixed cylinder is vertically installed between the fixed base 41 and the mounting platform 42. The supporting column 44 slides within the fixed cylinder, and a stop block is fixedly connected to the bottom end of the supporting column 44. The diameter of the stop block is larger than the diameter of the supporting column 44. A sliding groove is opened inside the fixed cylinder, and the stop block slides within the sliding groove. The ejector spring 45 is disposed within the sliding groove and located between the fixed base 41 and the stop block.

[0063] Reference Figure 4 , Figure 10 and Figure 11 The riveting assembly 3 includes a riveting machine 31, an upper pressure seat 32, and a pressure column 33. The riveting machine 31 is mounted on one side of the frame 01, and a controller 311 is installed on the riveting machine 31. The riveting machine 31, proximity sensor 133, and reducer 131 are all electrically connected to the controller 311. The upper pressure seat 32 is bolted to the output end of the riveting machine 31, and the pressure column 33 is fixedly connected to the upper pressure seat 32. The riveting station of the riveting machine 31 is located on the moving path of the riveting fixture 4.

[0064] Reference Figure 3 , Figure 5 and Figure 11 The elevator 141, the moving motor 113, the conveying cylinder 121 and the lifting cylinder 122 are all electrically connected to the controller 311.

[0065] When conveying sheet metal parts, the operator starts the conveying cylinder 121, which moves the moving frame 1211, causing one of the lifting cylinders 122 to move above the lifting plate 143. Then, the lifting cylinder 122 is started, causing the suction cup 123 to pick up the sheet metal parts. The sheet metal parts are then conveyed to the prefabricated fixture, where they are restrained by the pre-positioned column 62. Another lifting cylinder 122 is used to convey the sheet metal parts from the prefabricated fixture to the mounting table 42, where they are restrained by two positioning columns 43. Then, the reducer 131 is started, causing the rotating disk 132 to rotate and move the riveting fixture 4. When the detection hole 1321 is aligned with the proximity sensor 133, the proximity sensor 133 sends an electrical signal to the controller 311, causing the control system to stop the reducer. At this time, one of the riveting fixtures 4 is located at the riveting station of the riveting machine 31, achieving the effect of automatic conveying of sheet metal parts.

[0066] Reference Figure 12 , Figure 13 and Figure 14The nut feeding mechanism 2 includes a nut conveying assembly 21 and a nut pushing assembly 22. The nut pushing assembly 22 includes a pushing cylinder 221, a mounting cylinder 222, a pushing needle 223, a feeding box 224, a stop 225, and a reset component 226. Several sets of adjusting assemblies 23 are provided on the frame 01. In this embodiment, two sets are used as an example. The adjusting assembly 23 includes an adjusting column 231, an adjusting block 232, and a clamping block 233. The adjusting column 231 is bolted to the frame 01. The clamping block 233 is sleeved on the adjusting column 231 and locked to the adjusting column 231 by bolts. A fixing column 2321 is fixedly connected to the adjusting block 232. The clamping block 233 is sleeved on the fixing column 2321 and locked to the clamping block 233 by bolts. The mounting cylinder 222 passes through the adjusting block 232 and is locked to the adjusting block 232 by bolts.

[0067] Reference Figure 12 , Figure 13 and Figure 14 A push cylinder 221 is threaded onto one end of a mounting cylinder 222. A push pin 223 is threaded onto the output shaft of the push cylinder 221 and is located inside the mounting cylinder 222, with the push pin 223 facing the top of a support column 44 on one of the riveting fixtures 4. A sliding ring 2221 is slidably fitted inside the mounting cylinder 222, and the sliding ring 2221 is fixedly connected to the push pin 223. A needle outlet hole 2222 is opened at the other end of the mounting cylinder 222, and the push pin 223 is slidably fitted into the needle outlet hole 2222. A feed box 224 is threaded onto the other end of the mounting cylinder 222, and the feed box 224 is provided with a feed inlet and a discharge outlet. A rotating shaft is fixedly connected to a baffle 225, and the rotating shaft is rotatably connected to the feed box 224. When the baffle 225 is in its initial position, it covers the discharge outlet of the feed box 224, and the discharge outlet of the feed box 224 is aligned with the push pin 223. The reset component 226 is a reset torsion spring. The reset component 226 is sleeved on the rotating shaft and fixedly connected between the feed box 224 and the baffle 225.

[0068] Reference Figure 4 , Figure 10 and Figure 12 Two sets of nut conveying assemblies 21 are installed on the frame 01, with one set of nut conveying assemblies 21 corresponding to one set of nut pushing assemblies 22. Each nut conveying assembly 21 includes a vibratory feeder 211, a conveying hose 212, and an air supply hose 213. The vibratory feeder 211 is bolted to the frame 01. The conveying hose 212 is fixedly connected between the outlet of the vibratory feeder 211 and the inlet of the feed box 224. One end of the air supply hose 213 is connected to the conveying hose 212, and the other end is connected to an air source. Both the pushing cylinder 221 and the vibratory feeder 211 are electrically connected to the controller 311.

[0069] When conveying nuts, the operator starts the vibratory feeder 211, which moves the nuts one by one through the conveying hose 212 to the outlet of the feed box 224 by the thrust of the air source. Then, the push cylinder 221 is started, which moves the push needle 223. The nuts are pushed by the push needle 223 until they move onto the support column 44. During this process, the baffle 225 is rotated by the impact of the push needle 223, and the reset member 226 is compressed until the push needle 223 returns to the fixed cylinder. The baffle 225 is rotated in the opposite direction by the force of the reset member 226 until it returns to the initial position, thus achieving the effect of automatic nut conveying.

[0070] Reference Figure 4 , Figure 10 and Figure 12 A mounting bracket is provided on the frame 01 at the position corresponding to the mounting cylinder 222. A first laser sensor 24 is mounted on the mounting bracket, with the sensing end of the first laser sensor 24 facing the support column 44. The first laser sensor 24 is electrically connected to the controller 311. The first laser sensor 24 is used to detect whether there is a nut on the support column 44. If the nut does not reach the support column 44 when being pushed, the first laser sensor 24 sends an electrical signal to the controller 311, causing the control system to control the reducer 131 to stop working, thereby ensuring that there is a nut on the support column 44 before reaching the riveting machine 31.

[0071] Reference Figure 4 , Figure 12 and Figure 15 To facilitate the replenishment of nuts within the vibratory feeder 211, a discharge box 25 is installed on the frame 01 at the position corresponding to the vibratory feeder 211. The top of the discharge box 25 is fitted with a cover plate, and a discharge channel 251 is provided on one side wall of the discharge box 25, facing the vibratory feeder 211. An auxiliary pushing assembly 26 is installed on the discharge box 25, comprising an auxiliary pushing cylinder 261, a pushing plate 262, and a second laser sensor 263. The auxiliary pushing cylinder 261 is mounted on the frame 01. The pushing plate 262 is an L-shaped plate, with one end connected to the output end of the auxiliary pushing cylinder 261 by bolts, and the other end passing through the bottom wall of the discharge box 25 and located inside the discharge box 25. The second laser sensor 263 is mounted on the discharge box 25, and both the second laser sensor 263 and the auxiliary pushing cylinder 261 are electrically connected to the controller 311. The sensing end of the second laser sensor 263 faces the interior of the vibratory feeder 211.

[0072] When automatically replenishing nuts, the operator fills the material box 25 with nuts beforehand. Most of the nuts are confined within the material box 25. When the second laser sensor 263 does not detect the nuts passing through the vibratory feeder 211, the second laser sensor 263 sends an electrical signal to the controller 311, causing the control system to start the auxiliary push cylinder 261, which causes the push plate 262 to move back and forth for a period of time, thereby pushing the nuts in the material box 25 into the vibratory feeder 211, thus achieving the effect of automatically replenishing nuts for the vibratory feeder 211.

[0073] Reference Figure 4 and Figure 10 A laser marking machine 7 is mounted on the frame 01. The output end of the laser marking machine 7 faces one of the riveting fixtures 4. The laser marking machine 7 is electrically connected to the controller 311. The laser marking machine 7 is used to mark model numbers on sheet metal parts.

[0074] Reference Figure 4 , Figure 5 and Figure 16 The inspection component 5 includes a first conveyor frame 51, an inspection machine 52, a second conveyor frame 53, a scrap bin 54, and a qualified bin 55. The first conveyor frame 51 is located on one side of the frame 01, and baffles 511 are installed on both sides of the first conveyor frame 51 along its length. The two baffles 511 are used to limit the movement range of the sheet metal parts on the first conveyor frame 51. The frame 01 is equipped with an inspection delivery component 011, the structure of which is the same as that of the sheet metal conveying component 12, except for the features of the moving frame 1211 and the number of lifting cylinders 122.

[0075] Reference Figure 4 , Figure 10 and Figure 17 A collection box 012 is installed on the frame 01. A feed ramp is provided at the feed inlet of the collection box 012. An opening and closing assembly 8 is installed on the collection box 012. The opening and closing assembly 8 includes an opening and closing cylinder 81, an opening and closing plate 82, and a third laser sensor 83. The opening and closing cylinder 81 is installed on the collection box 012. The opening and closing plate 82 is fixedly connected to the output end of the opening and closing cylinder 81 and blocks the feed inlet of the collection box 012. The third laser sensor 83 and the opening and closing cylinder 81 are both electrically connected to the controller 311.

[0076] After prolonged use, there is a possibility that the output end of the riveting machine 31 may not descend to the correct position. In this case, the nut cannot be riveted onto the sheet metal part. The riveting machine 31 sends an electrical signal to the control system, which then controls the inspection component 011 to transport the sheet metal part to the collection box 012. The third laser sensor 83 detects the passing of the sheet metal part and sends an electrical signal to the control system. The control system then controls the opening and closing cylinder 81 to start, which causes the opening and closing plate 82 to open the feed port of the collection box 012, allowing the scrapped sheet metal part to enter the collection box 012.

[0077] Reference Figure 10 , Figure 16 and Figure 18 The inspection machine 52 is located at the outlet end of the first conveyor frame 51, on which a belt conveyor is mounted. The second conveyor frame 53 is located at the outlet end of the inspection machine 52, on which a chain conveyor is mounted. A waste bin 54 is located on one side of the second conveyor frame 53, and a connecting plate is fixedly connected between the waste bin 54 and the second conveyor frame 53. A pusher 531, which is a push cylinder, is located on the other side of the second conveyor frame 53. The output end of the pusher 531 is bolted to a push plate 532. A fourth laser sensor 533 is located on one side of the pusher 531, with its sensing end facing between the pusher 531 and the waste bin 54. The belt conveyor, chain conveyor, inspection machine 52, pusher 531, and fourth laser sensor 533 are all electrically connected to the controller 311.

[0078] Reference Figure 16 , Figure 19 and Figure 20 A work frame 551 is provided at the outlet end of the second conveyor frame 53. One qualified box 55 is installed on each side of the work frame 551, with the two qualified boxes 55 facing each other. A tilting assembly 9 is provided between the two qualified boxes 55. The tilting assembly 9 includes a rotary cylinder 91, a rotating shaft 92, and a tilting plate 93. The rotary cylinder 91 is fixedly connected to the work frame 551 and located between the two qualified boxes 55. The rotating shaft 92 is rotatably connected to the work frame 551 and fixedly connected to the rotating end of the rotary cylinder 91. The rotating shaft 92 is parallel to the conveying direction of the second conveyor frame 53. The tilting plate 93 is bolted to the rotating shaft 92. A counterweight box 921 is also bolted to the rotating shaft 92, and several counterweights are placed inside the counterweight box 921. The counterweights are used to apply pressure to the rotating shaft 92, so that when the rotary cylinder 91 is not working, the tilting plate 93 is in a horizontal state.

[0079] Workers use the plastic parts for inspection to transport the riveted sheet metal parts to the first conveyor frame 51. The sheet metal parts are then transported into the inspection machine 52. The inspection machine 52 takes pictures of the surface of the sheet metal parts to observe whether the sheet metal parts have deformed and the riveting status of the nuts on the sheet metal parts, in order to determine whether the processing of the sheet metal parts is qualified. If the sheet metal parts are unqualified, the inspection machine 52 sends an electrical signal to the controller 311. When the sheet metal parts move on the second conveyor frame 53, they are sensed by the fourth laser sensor 533. The fourth laser sensor 533 sends an electrical signal to the controller 311, causing the control system to control the pusher 531 to push the push plate 532, so that the unqualified sheet metal parts enter the scrap box 54. If the sheet metal parts are qualified, the inspection machine 52 sends an electrical signal to the controller 311, causing the fourth sensor to stop working, and the sheet metal parts enter the qualified box 55.

[0080] Reference Figure 1 and Figure 2 To improve the safety of the riveting equipment, two fixed rods are installed on the frame 01 near the moving plate 111. One fixed rod has the transmitting end of the grating sensor 013 installed on it, and the other fixed rod has the receiving end of the grating sensor 013 installed on it. The grating sensor 013 is electrically connected to the controller 311. When the riveting equipment is operating, if an object passes between the transmitting and receiving ends of the grating sensor 013, the grating sensor 013 sends an electrical signal to the controller 311, causing the entire riveting equipment to stop operating.

[0081] The implementation principle of an automated riveting device according to an embodiment of this application is as follows: When processing sheet metal parts, the worker stacks the sheet metal parts within four sets of limiting posts 112, then pours the nuts into the material box 25. The riveting device is started using the control system, causing the conveying cylinder 121 to start, which drives the lifting cylinder 122 to move above the sheet metal parts. The lifting cylinder 122 is then started, with one of the lifting cylinders 122 picking up the sheet metal parts and then conveying them to the pre-set tooling 6. The other lifting cylinder 122 conveys the sheet metal parts on the pre-set tooling 6 to the riveting tooling 4, causing the positioning post 43 to pass through the sheet metal parts. Then, the reducer 131 is started, causing the rotating disk 132 to rotate. The riveting fixture 4 is moved, and when the detection hole 1321 aligns with the sensing end of the proximity sensor 133, the proximity sensor 133 sends an electrical signal to the controller 311, causing the reducer 131 to stop working. The riveting fixture 4 is moved in a step-by-step manner. Then, the vibratory feeder 211 is started, feeding the nut into the feed box 224. The push cylinder 221 is started, moving the push needle 223 and driving the nut to move. The nut is fed onto the support column 44. After the first laser sensor 24 senses the nut, it sends an electrical signal to the controller 311, causing the reducer 131 to continue running. Once the riveting fixture 4 has moved to the riveting position of the riveting machine 31, the machine starts... The riveting machine 31 lowers the upper pressure seat 32, causing the pressure column 33 to apply pressure to the support column 44, thus lowering the nut and the support column 44. The nut is riveted onto the sheet metal part, and the ejector spring 45 is compressed. Then, the laser marking machine 7 is started to mark the riveted sheet metal part. Subsequently, the conveying cylinder 121 in the inspection assembly 011 is started, causing the lifting cylinder 122 in the inspection assembly 011 to pick up the sheet metal part and place it onto the first conveyor frame 51. The sheet metal part is then conveyed by the first conveyor frame 51 to the inspection machine 52, where the inspection machine 52 determines whether the sheet metal part is qualified. If the sheet metal part is unqualified, the inspection machine 52 sends an electrical signal to the controller 311, causing the sheet metal part to... During the movement of the sheet metal part by the second conveyor frame 53, it is detected by the fourth laser sensor 533. The fourth laser sensor 533 sends an electrical signal to the controller 311, causing the control system to control the pusher 531 to move the push plate 532, so that the sheet metal part is pushed into the waste bin 54 by the push plate 532. If the sheet metal part is qualified, the inspection machine 52 sends an electrical signal to the controller 311, the fourth laser sensor 533 does not work, and the sheet metal part enters the flip plate 93 through the second conveyor frame 53. Then, the rotary cylinder 91 is started, which drives the flip plate 93 to rotate, so that the sheet metal part enters one of the qualified bins 55, realizing the effect of automatic processing of sheet metal parts by the riveting equipment.

[0082] In the case of mass sheet metal processing, workers stack a large number of sheet metal parts on the moving plate 111. The sheet metal conveying assembly 12 and the riveting fixture 4 are used to automatically install the sheet metal parts. In addition, the nut feeding mechanism 2 automatically feeds the nuts to the riveting fixture 4. This avoids the need for workers to manually install sheet metal parts and nuts, reduces the labor intensity of workers, shortens the processing time of sheet metal parts, improves the processing efficiency of sheet metal parts, and improves the applicability of the riveting equipment to automotive sheet metal processing.

[0083] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automated clinching apparatus, characterized by: The application relates to a rack (01) provided with a sheet metal feeding mechanism (1) for automatically feeding sheet metal parts, a nut feeding mechanism (2) for automatically feeding nuts, a rivet pressing assembly (3) for pressing the nuts and a rivet pressing tool (4) for mounting the sheet metal parts, the sheet metal feeding mechanism (1) comprises a sheet metal moving assembly (11), a sheet metal conveying assembly (12) and a rotating assembly (13), the rotating assembly (13) is arranged on the rack (01), a plurality of rivet pressing tools (4) are arranged on the rotating assembly (13), the rotating assembly (13) is used for moving the rivet pressing tools (4) to the rivet pressing assembly (3), the sheet metal moving assembly (11) comprises a moving plate (111), a limiting column (112), a moving motor (113), a rotating gear (114) and a fixed rack (115), the moving plate (111) is slidingly matched on the rack (01), the fixed rack (115) is connected to the moving plate (111) and parallel to the sliding direction of the moving plate (111), the moving motor (113) is connected to the rack (01), the rotating gear (114) is connected to the output shaft of the moving motor (113) and is engaged with the fixed rack (115), a plurality of groups of the limiting columns (112) are connected on the moving plate (111), each group of the limiting columns (112) is provided with a plurality of limiting columns, and the limiting columns are used for limiting the sheet metal parts, the sheet metal conveying assembly (12) is arranged on the rack (01) and is used for conveying the sheet metal parts on the sheet metal moving assembly (11) to the rivet pressing tools (4), the nut feeding mechanism (2) comprises a nut conveying assembly (21) and a nut pushing assembly (22), the nut conveying assembly (21) comprises a vibrating disc (211), a conveying hose (212) and a gas feeding hose (213), the vibrating disc (211) is connected to the rack (01), the conveying hose (212) is connected between the discharging end of the vibrating disc (211) and the nut pushing assembly (22), one end of the gas feeding hose (213) is communicated with the conveying hose (212), and the other end is communicated with a gas source.The nut pushing assembly (22) comprises a pushing cylinder (221), a mounting cylinder (222), a pushing needle (223), a feeding box (224), a blocking frame (225) and a reset member (226), the mounting cylinder (222) is mounted on the rack (01), the pushing cylinder (221) is connected to one end of the mounting cylinder (222), the pushing needle (223) is connected to the output end of the pushing cylinder (221), the pushing needle (223) faces the pressure riveting tool (4), the moving ring (2221) is slidingly fitted in the mounting cylinder (222), the pushing needle (223) is connected with the moving ring (2221), the other end of the mounting cylinder (222) is provided with a needle hole (2222), the pushing needle (223) is slidingly fitted with the needle hole (2222), the feeding box (224) is connected to the other end of the mounting cylinder (222), the feeding end of the feeding box (224) is communicated with the conveying hose (212), the discharging end of the feeding box (224) is aligned with the pushing needle (223), the blocking frame (225) is rotatably connected to the feeding box (224), the blocking frame (225) blocks the discharging end of the feeding box (224) in the initial position, the reset member (226) is connected between the blocking frame (225) and the feeding box (224), and the reset member (226) is used to make the blocking frame (225) return to the initial position; One side of the rack (01) is provided with a detection assembly (5), the detection assembly (5) comprises a first conveying frame (51), a detection machine (52), a second conveying frame (53), a waste box (54) and a qualified box (55), the first conveying frame (51) is connected to one side of the rack (01), the rack (01) is provided with a detection conveying assembly (011) for conveying the sheet metal part after pressure riveting to the first conveying frame (51), the second conveying frame (53) is arranged at the outlet end of the first conveying frame (51), the detection machine (52) is arranged between the first conveying frame (51) and the second conveying frame (53), the waste box (54) is arranged on one side of the second conveying frame (53), the other side of the second conveying frame (53) is provided with a pushing member (531), the pushing member (531) is used for pushing the unqualified sheet metal part into the waste box (54), and the qualified box (55) is arranged at the outlet end of the second conveying frame (53).

2. The automated clinching apparatus of claim 1, wherein: The sheet metal conveying assembly (12) comprises a conveying cylinder (121), a lifting cylinder (122) and a suction cup (123), the conveying cylinder (121) is connected to the rack (01), the lifting cylinder (122) is connected to the moving end of the conveying cylinder (121), and the suction cup (123) is connected to the output end of the lifting cylinder (122). The suction cup (123) is used for sucking the sheet metal part.

3. An automated clinching apparatus as claimed in claim 2, wherein: The rack (01) is provided with a preset tool (6), the preset tool (6) comprises a preset seat (61), a preset column (62) and a limiting block (63), the preset seat (61) is connected to the rack (01), the preset column (62) is connected to the preset seat (61), and the limiting block (63) is connected to the preset seat (61). The limiting block (63) is provided with a guide inclined surface, the moving frame (1211) is connected to the moving end of the conveying cylinder (121), the lifting cylinder (122) is arranged on the moving frame (1211), and the two lifting cylinders (122) are synchronous.

4. The automated clinching apparatus of claim 1, wherein: The rack (01) is provided with a lifting assembly (14), the lifting assembly (14) comprises a lifting machine (141), a lifting column (142) and a lifting plate (143), the lifting machine (141) is connected to the rack (01), the lifting column (142) is connected to the output end of the lifting machine (141), and the lifting plate (143) is connected to the top end of the lifting column (142). The lifting plate (143) is located directly below the suction station of the sheet metal conveying assembly (12), the moving plate (111) is provided with a avoiding hole (1111) corresponding to the position of each set of limiting column (112), the lifting plate (143) passes through the avoiding hole (1111) and abuts against the sheet metal part.

5. The automated clinching apparatus of claim 1, wherein: The rotating assembly (13) comprises a speed reducer (131), a rotating disc (132) and a proximity sensor (133), the speed reducer (131) is connected to the rack (01), the rotating disc (132) is horizontally arranged and connected to the output shaft of the speed reducer (131), the pressure riveting tool (4) is arranged on the rotating disc (132), a plurality of pressure riveting tools (4) are uniformly distributed around the axis of the rotating disc (132), the rotating path of the pressure riveting tool (4) passes through the pressure riveting station of the pressure riveting assembly (3), the proximity sensor (133) is installed on the rack (01), and the rotating disc (132) is provided with a detection hole (1321) corresponding to the position of each pressure riveting tool (4). When one pressure riveting tool (4) is located at the pressure riveting station of the pressure riveting assembly (3), the detection hole (1321) is aligned with the sensing end of the proximity sensor (133), the pressure riveting assembly (3) is connected with a controller (311), and the proximity sensor (133) and the speed reducer (131) are electrically connected to the controller (311).

6. The automated clinching apparatus of claim 1, wherein: The press riveting tool (4) comprises a fixing base (41), a mounting table (42), positioning columns (43), supporting columns (44) and ejection springs (45), the fixing base (41) is mounted on the rotating assembly (13), the mounting table (42) is mounted on the fixing base (41), the positioning columns (43) are connected on the mounting table (42), a fixing cylinder is connected between the fixing base (41) and the mounting table (42), the supporting columns (44) are slidingly fitted in the fixing cylinder, the ejection springs (45) are arranged in the fixing cylinder and located between the fixing base (41) and the supporting columns (44), and the push needle (223) is towards the top end of the supporting columns (44).

7. The automated clinching apparatus of claim 5, wherein: The press riveting assembly (3) comprises a press riveting machine (31), an upper pressing seat (32) and a pressing column (33), the press riveting machine (31) is connected on the rack (01), the controller (311) is connected on the press riveting machine (31), the upper pressing seat (32) is connected on the output end of the press riveting machine (31), and the pressing column (33) is connected on the upper pressing seat (32), and the pressing column (33) is used for pressing the nut.

Citation Information

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