Automatic nut conveying system for automobile metal plate production

Abstract

The invention discloses an automatic nut conveying system for vehicle metal plate production, and relates to the field of vehicle metal plate production, the automatic nut conveying system comprises a welding device, a supporting rod is fixed on one side of the welding device, a pushing head is fixed on the supporting rod, a multi-stage feeding mechanism is arranged on the pushing head, an auxiliary discharging mechanism is arranged on the pushing head, and the multi-stage feeding mechanism is connected with the auxiliary discharging mechanism. And a control panel is arranged on the welding device. The multi-stage feeding mechanism moves on the pushing head through the control panel, the nuts of the corresponding types correspond to the pushing head, then the nuts enter the pushing head, the nuts are pushed by the pushing head to move to the welding position on the welding device, meanwhile, the multi-stage feeding mechanism drives the auxiliary discharging mechanism to conduct knocking oscillation, and the nuts are welded to the welding position through the auxiliary discharging mechanism. Therefore, nuts of different models can be conveniently conveyed at the same time, the trouble of replacing the nuts of different models is reduced, continuous operation is achieved, the overall operation stability of an assembly line can be kept, and the situation that the progress is dragged due to lagging of a certain link is avoided.

Description

Technical Field

[0001] The present application relates to the field of automotive sheet metal production, and in particular to an automatic nut conveying system for automotive sheet metal production. Background Art

[0002] Automotive sheet metal refers to the metal sheets used to manufacture automobile bodies and parts, as well as the process of processing these sheets. Automotive sheet metal not only includes the metal sheets themselves, but also involves a series of processing technologies, including cutting, stamping, forming, welding, etc.

[0003] Before sheet metal is electrically spliced ​​together, nuts generally need to be welded at the sheet metal positions to facilitate the subsequent installation and fixation of the sheet metal. When welding nuts to automotive sheet metal, a nut conveying system is generally used to convey the nuts one by one to the welding device, and then the operator moves the sheet metal to weld the nuts. The existing nut conveying system includes a nut vibration plate, a conveying hose, a conveying duct, a high-pressure blow nozzle and a push head. When conveying the nuts, the vibration plate moves the nuts to the pipe head of the conveying hose, and then they are blown into the conveying duct by the high-pressure blow nozzle, and then the nuts enter the push head from the conveying duct one by one, and the push head pushes the nuts to the welding device.

[0004] However, in actual operation, sheet metal may need to be fixed with nuts of different types. When different nuts need to be welded on the sheet metal, it may be necessary to wait until the welding of nuts of the same type on the same batch of sheet metal is completed, and then put nuts of another type into the vibration plate, and then re-weld this batch of sheet metal. The overall operation is more troublesome, and the assembly line may be interrupted due to the replacement of nuts. Summary of the invention

[0005] The purpose of the present application is to solve the problem raised in the above-mentioned background technology that when different nuts need to be welded on sheet metal, it may be necessary to wait until the welding of nuts of the same type on the same batch of sheet metal is completed, and then put nuts of another type into the vibration plate, and then re-weld the batch of sheet metal. The overall operation is more troublesome, and the replacement of nuts may cause interruption of the assembly line. The present application provides an automatic conveying system for nuts in the production of automotive sheet metal.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions: An automatic conveying system for nut production of automotive sheet metal includes a welding device, a support rod is fixed on one side of the welding device, a push head is fixed on the support rod, a multi-stage feeding mechanism is arranged on the push head, an auxiliary unloading mechanism is arranged on the push head, and a control panel is arranged on the welding device.

[0007] By adopting the above technical solution, the multi-stage feeding mechanism is moved on the pushing head by using the control panel, and the nuts of corresponding models are corresponding to the pushing heads, and then the nuts enter the pushing heads. Under the push of the pushing heads, the nuts are moved to the welding position on the welding device, and then welded together with the automotive sheet metal. When the multi-stage feeding mechanism is driven to move by using the control panel, the multi-stage feeding mechanism drives the auxiliary unloading mechanism, and the auxiliary unloading mechanism knocks and oscillates the outside of the multi-stage feeding mechanism, so that the nuts can enter the pushing head from the multi-stage feeding mechanism more smoothly, thereby facilitating the simultaneous delivery of nuts of different models, reducing the trouble of replacing nuts of different models, achieving continuous and uninterrupted operation, and helping to maintain the overall operation stability of the assembly line to avoid the situation where the progress is dragged down due to the lag of a certain link.

[0008] Furthermore, the multi-stage feeding mechanism includes a plurality of feeding tubes arranged on the pushing head, a feeding hose is fixed on the feeding tube, the feeding tube is connected with the feeding hose, the feeding tube is connected with the pushing head, a movable adjustment component is arranged between the feeding tube and the pushing head, and a discharge limit component is arranged between the feeding tube and the pushing head.

[0009] By adopting the above technical scheme, when nuts of corresponding models are needed, the control panel is used to control the moving adjustment component, and the moving adjustment component drives several feeding conduits to move horizontally, so that the corresponding feeding conduits are facing the pushing head, and other feeding conduits are blocked by the discharge limit component, and then the discharge limit component is used to drive the discharge port of the feeding conduit of the corresponding pushing head, and the nuts in the feeding conduit enter the pushing head, thereby facilitating the loading of nuts of different models, reducing the trouble of changing the nut model, and reducing the possibility of interruption of production operation due to changing the nut model.

[0010] Furthermore, the movable adjustment component includes two connecting blocks symmetrically fixed on the pushing head, a movable track is fixed between the two connecting blocks, a threaded rod is rotatably connected to the movable track, a threaded block is slidably connected to the movable track, the threaded rod passes through the threaded block and is threadedly connected to the threaded block, a movable motor is fixed to one end of the movable track, the output end of the movable motor passes through the movable track and is fixedly connected to the threaded rod, and several of the feeding conduits are fixedly connected to the threaded blocks.

[0011] By adopting the above technical solution, the threaded rod rotates on the movable track, the threaded rod drives the threaded block, the threaded block moves on the movable track, and then the threaded block drives several feeding tubes to move along the movable track, so that the feeding tubes equipped with nuts of different types can be easily and quickly aligned with the pushing head, which facilitates the conversion of nuts of different types.

[0012] Furthermore, the discharge limit assembly includes a limit plate arranged between the feeding conduit and the pushing head, and two symmetrical sliding blocks are fixed on the limit plate. The sliding blocks are slidably connected to the feeding conduit, and a sliding rod is fixed on the sliding block. The sliding rod passes through the feeding conduit and is slidably connected to the feeding conduit, and a pull-out piece is arranged on the limit plate.

[0013] By adopting the above technical solution, when the limit plate on the corresponding feeding conduit is aligned with the pushing head, the pulling piece is used to pull the feeding conduit, so that the feeding conduit moves under the support of the sliding block and the sliding rod, and then the feeding conduit is connected with the pushing head, so that it is convenient to open only the corresponding limit plate, so that the feeding conduit is connected with the pushing head, and the outlets of other feeding conduits are blocked, thereby reducing the nuts in other feeding conduits from falling out.

[0014] Furthermore, the pulling member includes an electric telescopic rod fixed on the pushing head, and a pulling block 1 is fixed to the telescopic end of the electric telescopic rod. The pulling block 1 is a concave block, and a pulling block 2 is arranged on the pulling block 1. The pulling block 2 is L-shaped and fixedly connected to the limit plate, and the groove of the pulling block 1 faces the pulling block 2.

[0015] By adopting the above technical solution, when the corresponding feeding tube is aligned with the pushing head, the pull-out block two moves to the groove on the pull-out block one, so that the pull-out block one and the pull-out block two are buckled together, and then the telescopic end of the electric telescopic rod drives the pull-out block one, the pull-out block one drives the pull-out block two, and the pull-out block two drives the limit plate, so that the limit plate on the corresponding feeding tube can be easily opened, allowing the nut to enter the pushing head from the feeding tube.

[0016] Furthermore, a limit spring is arranged on the sliding block, and the limit spring is located between the sliding block and the feeding conduit, and both ends of the limit spring are fixedly connected to the sliding block and the feeding conduit.

[0017] By adopting the above technical solution, the limit plate is kept in a closed state under the pull of the limit spring, so that the discharge port of the feeding conduit that is not aligned with the push head can be kept in a closed state, further reducing the possibility of the nut falling out of the feeding conduit.

[0018] Furthermore, the auxiliary unloading mechanism includes two support blocks symmetrically fixed on one side of the feeding conduit, a rotating shaft is rotatably connected between the two support blocks, a knocking rod is fixed on the rotating shaft, a knocking head is fixed at one end of the knocking rod, a spring sheet is provided at the end of the knocking rod away from the knocking head, both ends of the spring sheet are fixedly connected to the knocking rod and the feeding conduit, and a toggle assembly is provided on the movable track.

[0019] By adopting the above technical solution, the knocking head is against the feeding tube under the action of the spring sheet, and the knocking rod moves on the toggle assembly during movement. The toggle assembly lifts the knocking head on the knocking rod, and then under the action of the spring sheet, the knocking head knocks and oscillates the feeding tube, thereby allowing the nuts in the feeding tube to be arranged tightly, making it easier for the nuts to enter the pushing head from the feeding tube.

[0020] Furthermore, the toggle assembly includes two connecting rods symmetrically fixed on the moving track, a toggle ruler is fixed between the two connecting rods, and the toggle ruler is provided with evenly distributed arc grooves on one side facing the knocking rod.

[0021] By adopting the above technical solution, under the action of the arc groove slope, the knocking rod moves back and forth, and then cooperates with the spring sheet to allow the knocking head to repeatedly knock on the feeding conduit, so that the feeding conduit can knock on the feeding conduit while moving.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. In the present application, when it is necessary to convey nuts, firstly, several feeding hoses are connected to different vibration plates, the vibration plates move the nuts to the end of the feeding hoses, and then the external high-pressure nozzles blow the nuts into the feeding hoses, and then the nuts enter the feeding ducts from the feeding hoses. When nuts of corresponding models are needed, the control panel is used to control the moving adjustment component, and the moving adjustment component drives several feeding ducts to move horizontally, so that the corresponding feeding ducts face the push head, and the other feeding ducts are blocked by the discharge limit component, and then the discharge limit component is used to drive the corresponding push head. At the discharge port of the feeding duct, the nut in the feeding duct enters the pushing head and is then pushed to the welding device for welding. When nuts in other feeding ducts are needed, the discharge limit assembly closes the corresponding feeding duct, and then the moving adjustment assembly drives several feeding ducts to move again, so that the corresponding feeding duct is aligned with the pushing head, and then the discharge limit assembly opens the feeding duct, and then the pushing head pushes the nut, thereby facilitating the loading of nuts of different models, reducing the trouble of changing nut models, and reducing the possible interruption of production operations due to changing nut models.

[0023] 2. In the present application, when the feeding conduit moves, the feeding conduit drives the corresponding supporting block, the supporting block drives the rotating shaft, the rotating shaft drives the knocking rod and the knocking head, the knocking head contacts the feeding conduit under the action of the spring sheet, and the knocking rod moves on the dial ruler during the movement, the dial ruler lifts the knocking head on the knocking rod, and then under the action of the spring sheet, the knocking head knocks and oscillates the feeding conduit, so that the nut falls onto the pushing head more quickly, thereby achieving the purpose of arranging the nuts in the feeding conduit tightly and allowing the nuts to enter the pushing head from the feeding conduit more conveniently and smoothly.

[0024] 3. In the present application, when the threaded block drives several feeding tubes to move, the feeding tubes drive the corresponding limit plates. When the limit plates on the corresponding feeding tubes are aligned with the pushing head, the pulling piece is used to pull the feeding tubes to allow the feeding tubes to move under the support of the sliding block and the sliding rod. Then the feeding tubes are connected with the pushing head, and the nuts in the feeding tubes fall into the pushing head under the action of gravity, thereby achieving the purpose of conveniently opening only the corresponding limit plates to allow the feeding tubes to communicate with the pushing head, so that the outlets of other feeding tubes are blocked, thereby reducing the falling out of nuts in other feeding tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a first three-dimensional structural schematic diagram of the automatic nut conveying system in the present application; Figure 2 It is the first three-dimensional disassembly schematic diagram of the automatic nut conveying system in the present application; Figure 3 It is a partial structural schematic diagram of the automatic nut conveying system in this application; Figure 4 This application Figure 2 The enlarged schematic diagram at A in the middle; Figure 5 This application Figure 2 Enlarged schematic diagram of point B in the middle.

[0026] Description of reference numerals: 1. Welding device; 2. Support rod; 3. Push head; 4. Multi-stage feeding mechanism; 41. Feeding guide tube; 42. Feeding hose; 43. Moving adjustment component; 431. Connecting block; 432. Moving track; 433. Threaded rod; 434. Moving motor; 435. Threaded block; 44. Discharging limit component; 441. Limit plate; 442. Sliding block; 443. Sliding rod; 444. Pull-out piece; 4441. Electric telescopic rod; 4442. Pull-out block one; 4443. Pull-out block two; 445. Limit spring; 5. Auxiliary unloading mechanism; 51. Support block; 52. Rotating shaft; 53. Knocking rod; 54. Knocking head; 55. Toggle component; 551. Connecting rod; 552. Toggle ruler; 56. Spring sheet; 6. Control panel. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 —5 Provide further details of this application.

[0028] The embodiment of the present application discloses an automatic nut conveying system for automobile sheet metal production.

[0029] Reference Figure 1 , Figure 2 and Figure 3An automatic nut conveying system for automotive sheet metal production includes a welding device 1, a support rod 2 is fixed on one side of the welding device 1, a push head 3 is fixed on the support rod 2, a multi-stage feeding mechanism 4 is arranged on the push head 3, an auxiliary unloading mechanism 5 is arranged on the push head 3, and a control panel 6 is arranged on the welding device 1.

[0030] When producing automotive sheet metal, the multi-stage feeding mechanism 4 and the auxiliary unloading mechanism 5 are installed on the pushing head 3, and then the conveying end of the multi-stage feeding mechanism 4 is connected to multiple external vibration plates, and various types of nuts are placed in the vibration plates. The nuts are blown into the multi-stage feeding mechanism 4 by using external air pressure. According to actual needs, the control panel 6 is used to move the multi-stage feeding mechanism 4 on the pushing head 3, and the nuts of corresponding types correspond to the pushing head 3, and then the nuts enter the pushing head 3. Under the push of the pushing head 3, the nuts are moved to the welding position on the welding device 1, and then welded together with the automotive sheet metal. When the control panel 6 is used to drive the multi-stage feeding mechanism 4 to move, the multi-stage feeding mechanism 4 drives the auxiliary unloading mechanism 5 to move. The unloading mechanism 5 and the auxiliary unloading mechanism 5 knock and vibrate the outside of the multi-stage feeding mechanism 4, so that the nuts entering the multi-stage feeding mechanism 4 can be arranged closely, which is convenient for the nuts to enter the push head 3 from the multi-stage feeding mechanism 4 more smoothly. By connecting the multi-stage feeding mechanism 4 to multiple external feeding vibration plates, nuts of multiple models can enter the multi-stage feeding mechanism 4, and then the multi-stage feeding mechanism 4 allows nuts of corresponding models to enter the push head 3 as needed, so that nuts of different models can be conveniently conveyed at the same time, reducing the trouble of replacing nuts of different models, realizing continuous and uninterrupted operation, and helping to maintain the overall operation stability of the assembly line to avoid the situation where the progress is dragged down due to the lag of a certain link. Reference Figure 2 , Figure 3 and Figure 4 The multi-stage feeding mechanism 4 includes a plurality of feeding tubes 41 arranged on the pushing head 3, a feeding hose 42 is fixed on the feeding tube 41, the feeding tube 41 is connected with the feeding hose 42, the feeding tube 41 is connected with the pushing head 3, a moving adjustment component 43 is arranged between the feeding tube 41 and the pushing head 3, and a discharge limit component 44 is arranged between the feeding tube 41 and the pushing head 3.

[0031] When it is necessary to transport the nuts, first connect several feeding hoses 42 to different vibration plates, the vibration plates move the nuts to the end of the feeding hoses 42, and then the external high-pressure nozzle blows the nuts into the feeding hoses 42, and then the nuts enter the feeding conduit 41 from the feeding hoses 42. When nuts of corresponding models are needed, use the control panel 6 to control the moving adjustment component 43, and the moving adjustment component 43 drives several feeding conduits 41 to move horizontally, so that the corresponding feeding conduits 41 face the push head 3, and the other feeding conduits 41 are blocked by the discharge limiting component 44, and then the discharge limiting component 44 is used to drive the discharge port of the feeding conduit 41 of the corresponding push head 3, and the nuts in the feeding conduit 41 enter the push head 3, and then are pushed to the welding device 1 by the push head 3. Welding is performed on the feeding tube 41. When nuts in other feeding tubes 41 are needed, the discharge limiting component 44 closes the corresponding feeding tube 41, and then the moving adjusting component 43 drives several feeding tubes 41 to move again, so that the corresponding feeding tube 41 is aligned with the pushing head 3, and then the discharge limiting component 44 opens the feeding tube 41, and then the pushing head 3 pushes the nut. The feeding hose 42 on the feeding tube 41 is connected to the vibration plate of multiple external nut models, and then the moving adjusting component 43 drives several feeding tubes 41 to move as needed, so that the corresponding feeding tube 41 is moved to the pushing head 3 to push the nut, thereby facilitating the feeding of nuts of different models, reducing the trouble of changing the nut model, and reducing the possibility of interruption of production operation due to changing the nut model.

[0032] Reference Figure 2 , Figure 3 and Figure 4 The movable adjustment component 43 includes two connecting blocks 431 symmetrically fixed on the pushing head 3, a movable track 432 is fixed between the two connecting blocks 431, a threaded rod 433 is rotatably connected to the movable track 432, a threaded block 435 is slidably connected to the movable track 432, the threaded rod 433 penetrates the threaded block 435 and is threadedly connected to the threaded block 435, a movable motor 434 is fixed to one end of the movable track 432, the output end of the movable motor 434 penetrates the movable track 432 and is fixedly connected to the threaded rod 433, and a plurality of feeding conduits 41 are fixedly connected to the threaded block 435.

[0033] When it is necessary to move several feeding pipes 41, the moving motor 434 is used to drive the threaded rod 433, so that the threaded rod 433 rotates on the moving rail 432, and the threaded rod 433 drives the threaded block 435, and the threaded block 435 moves on the moving rail 432, and then the threaded block 435 drives several feeding pipes 41 to move along the moving rail 432. After the corresponding feeding pipe 41 is aligned with the pushing head 3, the threaded rod 433 stops rotating, and then the nut in the corresponding feeding pipe 41 enters the pushing head 3 for conveying and feeding. By driving the threaded block 435 when the threaded rod 433 rotates, the threaded block 435 drives several feeding pipes 41 to move, and several feeding pipes 41 are switched on the pushing head 3, so that the feeding pipe 41 equipped with nuts of different types can be easily and quickly aligned with the pushing head 3, which facilitates the switch of nuts of different types.

[0034] Reference Figure 2 , Figure 3 and Figure 4 The discharge limiting assembly 44 includes a limiting plate 441 arranged between the feeding conduit 41 and the pushing head 3, and two symmetrical sliding blocks 442 are fixed on the limiting plate 441. The sliding blocks 442 are slidably connected to the feeding conduit 41, and a sliding rod 443 is fixed on the sliding block 442. The sliding rod 443 penetrates the feeding conduit 41 and is slidably connected to the feeding conduit 41. A pull-out piece 444 is arranged on the limiting plate 441.

[0035] When the threaded block 435 drives several feeding pipes 41 to move, the feeding pipes 41 drive the corresponding limit plates 441. When the limit plates 441 on the corresponding feeding pipes 41 are aligned with the pushing head 3, the pulling piece 444 is used to pull the feeding pipe 41, so that the feeding pipe 41 is moved under the support of the sliding block 442 and the sliding rod 443, and then the feeding pipe 41 is connected with the pushing head 3, and the nut in the feeding pipe 41 falls into the pushing head 3 under the action of gravity. By using the limit plate 441 to block the discharge port of the feeding pipe 41, after the corresponding feeding pipe 41 is aligned with the pushing head 3, the limit plate 441 is opened under the support of the sliding block 442 and the sliding rod 443, so that the corresponding limit plate 441 can be easily opened, so that the feeding pipe 41 is connected with the pushing head 3, and the discharge ports of other feeding pipes 41 are blocked, thereby reducing the nuts in other feeding pipes 41 from falling out.

[0036] Reference Figure 2 , Figure 3 and Figure 4The pulling member 444 includes an electric telescopic rod 4441 fixed on the pushing head 3, and a pulling block 4442 is fixed to the telescopic end of the electric telescopic rod 4441. The pulling block 1 4442 is a concave block, and a pulling block 2 4443 is arranged on the pulling block 1 4442. The pulling block 2 4443 is L-shaped and fixedly connected to the limiting plate 441, and the groove of the pulling block 1 4442 faces the pulling block 2 4443.

[0037] When the threaded block 435 drives several feeding tubes 41 to move, the feeding tube 41 drives the limiting plate 441, and the limiting plate 441 drives the second pull-out block 4443. When the corresponding feeding tube 41 is aligned with the push head 3, the second pull-out block 4443 moves to the groove on the first pull-out block 4442, so that the first pull-out block 4442 and the second pull-out block 4443 are buckled together, and then the telescopic end of the electric telescopic rod 4441 drives the first pull-out block 4442, the first pull-out block 4442 drives the second pull-out block 4443, and the second pull-out block 4443 drives the limiting plate 441. Plate 441, let the limit plate 441 slide under the support of the sliding block 442 and the sliding rod 443, open the unloading port of the feeding tube 41, and when the feeding tube 41 is aligned with the pushing head 3, let the pull-out block 2 4443 on the limit plate 441 enter into the pull-out block 1 4442, and then let the pull-out block 1 4442 drive the pull-out block 2 4443, and let the pull-out block 2 4443 drive the limit plate 441 to move, so as to facilitate the opening of the limit plate 441 on the corresponding feeding tube 41, and allow the nut to enter the pushing head 3 from the feeding tube 41.

[0038] Reference Figure 2 , Figure 3 and Figure 4 A limit spring 445 is provided on the sliding block 442, and the limit spring 445 is located between the sliding block 442 and the feeding conduit 41. Both ends of the limit spring 445 are fixedly connected to the sliding block 442 and the feeding conduit 41. When the feeding conduit 41 needs to be replaced, the electric telescopic rod 4441 pushes the pull plate back to its original position, and then the pull block 2 4443 moves out from the pull block 1 4442, and then under the pull of the limit spring 445, the limit plate 441 is kept in a closed state. By allowing the limit spring 445 to pull the limit plate 441, the discharge port of the feeding conduit 41 that is not aligned with the push head 3 can be kept in a closed state, further reducing the possibility of the nut falling out of the feeding conduit 41.

[0039] Reference Figure 2 , Figure 3 and Figure 5The auxiliary unloading mechanism 5 includes two support blocks 51 symmetrically fixed on one side of the feeding conduit 41, a rotating shaft 52 is rotatably connected between the two support blocks 51, a knocking rod 53 is fixed on the rotating shaft 52, a knocking head 54 is fixed at one end of the knocking rod 53, a spring sheet 56 is provided at the end of the knocking rod 53 away from the knocking head 54, both ends of the spring sheet 56 are fixedly connected to the knocking rod 53 and the feeding conduit 41, and a toggle assembly 55 is provided on the movable track 432.

[0040] When the threaded block 435 drives several feeding tubes 41 to move, the feeding tube 41 drives the corresponding supporting block 51, the supporting block 51 drives the rotating shaft 52, the rotating shaft 52 drives the knocking rod 53 and the knocking head 54, the knocking head 54 contacts the feeding tube 41 under the action of the spring sheet 56, and the knocking rod 53 moves on the toggle assembly 55 during the movement, the toggle assembly 55 lifts the knocking head 54 on the knocking rod 53, and then under the action of the spring sheet 56, the knocking head 54 knocks and oscillates the feeding tube 41, and when the threaded block 435 drives several feeding tubes 41 to move, the feeding tube 41 drives the knocking rod 53 to move, the knocking rod 53 moves on the toggle assembly 55, and the knocking head 54 knocks the feeding tube 41 under the action of the toggle assembly 55 and the spring sheet 56, so that the nuts in the feeding tube 41 can be arranged tightly, which makes it more convenient for the nuts to enter the pushing head 3 from the feeding tube 41.

[0041] Reference Figure 2 , Figure 3 and Figure 5 The toggle assembly 55 includes two connecting rods 551 symmetrically fixed on the moving track 432, and a toggle ruler 552 is fixed between the two connecting rods 551. The toggle ruler 552 is provided with evenly distributed arc grooves on one side of the knocking rod 53. When the knocking rod 53 is driven by the feeding conduit 41, the end of the knocking rod 53 without the fixed knocking head 54 contacts the arc groove of the toggle ruler 552. Under the action of the inclined surface of the arc groove, the knocking rod 53 moves back and forth, and then cooperates with the spring sheet 56 to make the knocking head 54 repeatedly knock the feeding conduit 41. By moving the knocking rod 53 on the toggle ruler 552, the knocking head 54 knocks the feeding conduit 41, so that the feeding conduit 41 can knock the feeding conduit 41 when it moves.

[0042] Working principle: When it is necessary to transport nuts, first connect several feeding hoses 42 to different vibration plates, the vibration plates move the nuts to the ends of the feeding hoses 42, and then the external high-pressure nozzles blow the nuts into the feeding hoses 42, and then the nuts enter the feeding conduit 41 from the feeding hoses 42. When nuts of corresponding models are needed, the moving motor 434 is used to drive the threaded rod 433, so that the threaded rod 433 rotates on the moving track 432, the threaded rod 433 drives the threaded block 435, the threaded block 435 moves on the moving track 432, and then the threaded block 435 drives several feeding conduits 41 to move along the moving track 432. After the corresponding feeding conduit 41 is aligned with the pushing head 3, the threaded rod 433 stops rotating, and at the same time, the limiting plate 441 drives the second pulling block 4443. When the corresponding feeding conduit 41 is aligned with the pushing head 3, the second pulling block 4443 moves into the groove on the first pulling block 4442, so that the first pulling block 4442 and the second pulling block 4443 are buckled together, and then the telescopic end of the electric telescopic rod 4441 drives the first pulling block 4442, and the first pulling block 4442 drives the second pulling block 4443, and the pulling The pull block 2 4443 drives the limit plate 441, and the limit plate 441 slides under the support of the sliding block 442 and the sliding rod 443, and the unloading port of the feeding conduit 41 is opened, and then the nut enters the pushing head 3 from the feeding conduit 41, and the pushing head 3 sends the nut to the welding device 1. When it is necessary to replace nuts of other types, the electric telescopic rod 4441 drives the pulling block 1 4442, the pulling block 1 4442 drives the pulling block 2 4443, and the pulling block 2 4443 drives the limit plate 441 to reset, and then under the drive of the threaded block 435, the corresponding feeding The conduit 41 moves to the pushing head 3. When the feeding conduit 41 moves, the feeding conduit 41 drives the corresponding support block 51, the support block 51 drives the rotating shaft 52, the rotating shaft 52 drives the knocking rod 53 and the knocking head 54, and the knocking head 54 contacts the feeding conduit 41 under the action of the spring sheet 56. When moving, the knocking rod 53 moves on the dial ruler 552, and the dial ruler 552 lifts the knocking head 54 on the knocking rod 53. Then, under the action of the spring sheet 56, the knocking head 54 knocks and oscillates the feeding conduit 41, so that the nut falls onto the pushing head 3 more quickly.

Claims

1. An automatic nut conveying system for automobile sheet metal production, comprising a welding device (1), characterized in that: A support rod (2) is fixed on one side of the welding device (1), a push head (3) is fixed on the support rod (2), a multi-stage feeding mechanism (4) is provided on the push head (3), an auxiliary unloading mechanism (5) is provided on the push head (3), and a control panel (6) is provided on the welding device (1).

2. The automatic nut conveying system for sheet metal production for vehicles according to claim 1 is characterized by: The multi-stage feeding mechanism (4) comprises a plurality of feeding conduits (41) arranged on the push head (3), a feeding hose (42) being fixed on the feeding conduit (41), the feeding conduit (41) being connected to the feeding hose (42), the feeding conduit (41) being connected to the push head (3), a movable adjustment component (43) being arranged between the feeding conduit (41) and the push head (3), and a discharge limit component (44) being arranged between the feeding conduit (41) and the push head (3).

3. The automatic nut conveying system for automobile sheet metal production according to claim 2 is characterized by: The movable adjustment component (43) comprises two connecting blocks (431) symmetrically fixed on the push head (3); a movable track (432) is fixed between the two connecting blocks (431); a threaded rod (433) is rotatably connected to the movable track (432); a threaded block (435) is slidably connected to the movable track (432); the threaded rod (433) passes through the threaded block (435) and is threadedly connected to the threaded block (435); a movable motor (434) is fixed to one end of the movable track (432); an output end of the movable motor (434) passes through the movable track (432) and is fixedly connected to the threaded rod (433); and a plurality of the feeding conduits (41) are fixedly connected to the threaded block (435).

4. The automatic nut conveying system for automobile sheet metal production according to claim 3 is characterized by: The discharge limiting assembly (44) comprises a limiting plate (441) arranged between the feeding conduit (41) and the pushing head (3); two symmetrical sliding blocks (442) are fixed on the limiting plate (441); the sliding blocks (442) are slidably connected to the feeding conduit (41); a sliding rod (443) is fixed on the sliding block (442); the sliding rod (443) passes through the feeding conduit (41) and is slidably connected to the feeding conduit (41); and a drawer (444) is arranged on the limiting plate (441).

5. The automatic nut conveying system for automobile sheet metal production according to claim 4 is characterized in that: The pull-out member (444) comprises an electric telescopic rod (4441) fixed on the pushing head (3); a pull-out block 1 (4442) is fixed to the telescopic end of the electric telescopic rod (4441); the pull-out block 1 (4442) is a concave block; a pull-out block 2 (4443) is arranged on the pull-out block 1 (4442); the pull-out block 2 (4443) is L-shaped and is fixedly connected to the limit plate (441); the groove of the pull-out block 1 (4442) faces the pull-out block 2 (4443).

6. The automatic nut conveying system for automobile sheet metal production according to claim 4 is characterized by: A limit spring (445) is provided on the sliding block (442), and the limit spring (445) is located between the sliding block (442) and the feeding conduit (41). Both ends of the limit spring (445) are fixedly connected to the sliding block (442) and the feeding conduit (41).

7. The automatic nut conveying system for automobile sheet metal production according to claim 3 is characterized by: The auxiliary unloading mechanism (5) comprises two support blocks (51) symmetrically fixed on one side of the feeding conduit (41); a rotating shaft (52) is rotatably connected between the two support blocks (51); a knocking rod (53) is fixed on the rotating shaft (52); a knocking head (54) is fixed on one end of the knocking rod (53); a spring sheet (56) is provided at one end of the knocking rod (53) away from the knocking head (54); both ends of the spring sheet (56) are fixedly connected to the knocking rod (53) and the feeding conduit (41); and a toggle assembly (55) is provided on the movable track (432).

8. The automatic nut conveying system for automobile sheet metal production according to claim 7 is characterized in that: The toggle assembly (55) comprises two connecting rods (551) symmetrically fixed on the moving track (432), a toggle ruler (552) is fixed between the two connecting rods (551), and the toggle ruler (552) is provided with evenly distributed arc grooves on one side facing the knocking rod (53).

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