Automatic material belt welding device and system with nitrogen protection function

Abstract

The invention discloses an automatic material strap welding device and system with a nitrogen protection function. The automatic material strap welding device comprises a material strap supporting mechanism, a welding positioning mechanism, a rivet distributing mechanism, a nitrogen conveying mechanism and a machining table. A material belt supporting mechanism is arranged on a machining table, a welding positioning mechanism is arranged on the material belt supporting mechanism, a material belt is supported and conveyed through the material belt supporting mechanism, the welding positioning mechanism is matched with laser welding equipment, and the welding positioning mechanism positions the material belt and enables a plurality of butt welding points of the material belt and rivets to be exposed; multi-point welding is achieved, the rivet distribution mechanism is in butt joint with the welding positioning mechanism to continuously convey rivets, meanwhile, nitrogen is conveyed into the welding positioning mechanism through an external nitrogen conveying mechanism to conduct protective welding on the material belt, and therefore automatic and intelligent batch welding is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of material strip processing and welding, and in particular relates to a material strip automatic welding device and system with nitrogen protection. Background Art

[0002] The processing steps for some special workpieces are to stamp the material strip, cut it into finished parts, and then rivet weld the finished parts. This method is inefficient and requires fixed sorting of scattered finished parts, so corresponding positioning processing equipment is required, resulting in low processing efficiency and high processing costs; therefore, after the material strip is stamped, rivets are directly welded on the material strip before the cutting step, which can reduce subsequent processing steps and make it more convenient to fix the material strip; but the material strip also needs to be welded and positioned during welding, and the rivets need to be continuously conveyed to cooperate with the welding of the material strip. In addition, the material strip itself is relatively thin, and nitrogen needs to be used for protective welding during welding to prevent the material strip from being welded through. Laser welding is used as the welding method, which is more precise. Traditional welding methods are not suitable for direct welding on the material strip. Summary of the invention

[0003] The object of the present invention is to provide an automatic strip welding device and system with nitrogen protection, by arranging a strip support mechanism on a processing table, arranging a welding positioning mechanism on the strip support mechanism, supporting and conveying the strip through the strip support mechanism, and cooperating with a laser welding device through the welding positioning mechanism, the welding positioning mechanism positions the strip and exposes multiple butt welding points between the strip and the rivet to realize multi-point welding, the rivet distribution mechanism is docked with the welding positioning mechanism to continuously convey the rivets, and at the same time, nitrogen is conveyed to the welding positioning mechanism through an external nitrogen conveying mechanism to perform protective welding on the strip, so as to realize automatic and intelligent batch welding.

[0004] The present invention is achieved through the following technical solutions: An automatic strip welding device with nitrogen protection, comprising: A material belt support mechanism, the material belt support mechanism is used to position, support and convey the material belt; A welding positioning mechanism, wherein the welding positioning mechanism is arranged on the material strip supporting mechanism, and at least one welding groove is arranged on the welding positioning mechanism, and the welding positioning mechanism is used to cooperate with an external laser welding device to weld the material strip and the rivet; A rivet distributing mechanism, the rivet distributing mechanism is connected to the welding positioning mechanism, and the rivet distributing mechanism is used to transport the rivets to the bottom of the material strip; A nitrogen delivery mechanism, wherein the nitrogen delivery mechanism is used to fill nitrogen into the welding tank to perform welding protection on the material strip; A processing table is used to set a material strip supporting mechanism, a welding positioning mechanism, a rivet distributing mechanism and a nitrogen conveying mechanism.

[0005] Furthermore, the material strip support mechanism includes a material strip support plate and two groups of support rollers, the two groups of support rollers are spaced apart, the welding positioning mechanism is disposed between the two groups of support rollers, a processing table is disposed below the material strip support plate, and the material strip support plate and the processing table are spaced apart.

[0006] Furthermore, the welding positioning mechanism includes a welding seat, a pressure plate and a positioning plate, the welding seat is arranged on the material strip support plate, the pressure plate is located on the welding seat, a limiting groove is arranged on the welding seat, and the limiting groove is used to limit the material strip; a positioning port is arranged in the middle of the pressure plate, a plurality of welding grooves are arranged on the welding seat, and the positioning port is arranged at the welding groove position; the positioning plate is arranged above the positioning port, and a clearance hole is arranged on the positioning plate corresponding to the welding groove position.

[0007] Furthermore, at least one nitrogen access head is provided on the positioning plate, and the nitrogen access head is used to connect to a nitrogen delivery mechanism; the nitrogen access head is connected to the welding groove below, and nitrogen enters the welding groove through the nitrogen access head.

[0008] Furthermore, a fixed plate is provided on one side of the welding seat, and the rivet distribution mechanism is provided on the fixed plate; the rivet distribution mechanism includes a feeding assembly and a conveying assembly, and the feeding assembly is docked with the conveying assembly; a plurality of feeding ports are provided on the feeding assembly, and the feeding assembly is docked with an external vibration disk, and the rivets are vibrated and diverted by the vibration disk so that the rivets are evenly dispersed into the plurality of feeding ports, and are fed into the welding seat through the distribution assembly and docked with the material belt, and laser welding is performed by an external laser welding device.

[0009] Furthermore, the feed assembly includes a feed seat and a cover plate, the feed seat is provided with a feed slot, and the cover plate is provided on the feed seat to limit the rivet and prevent the rivet from falling out of the feed slot.

[0010] Furthermore, the rivet distributing mechanism includes a distributing part and an airway pressure plate, the distributing part is provided with multiple slideways, airways are provided on both sides of the slideways, the airways are connected to an external air pump, and the rivets are pushed into the welding groove by external gas in the slideways to dock with the material strip.

[0011] Furthermore, the nitrogen delivery mechanism includes a storage box, a nitrogen bottle group and a nitrogen solenoid valve; the storage box is located below the processing table, the nitrogen bottle group is arranged in the storage box, the nitrogen solenoid valve is arranged on the processing table, and the nitrogen solenoid valve is connected to the welding positioning mechanism and the nitrogen bottle group through a nitrogen hose; the nitrogen solenoid valve is connected to an external control host, and the control host is used to control the gas output of nitrogen.

[0012] An automatic strip welding system with nitrogen protection, comprising: A material belt support module, the material belt support module is used to position, support and convey the material belt; A welding positioning module, which is used to cooperate with the material strip supporting module and external welding equipment to weld the material strip and the rivet; A rivet distribution module, the rivet distribution module is connected to the welding positioning module, and the rivet distribution module is used to transport rivets to the bottom of the material belt; A nitrogen delivery module, which is used to fill nitrogen into the welding positioning module to perform welding protection on the material strip; The fixing platform is installed and used to fix the material strip support module, the welding positioning module, the rivet distribution module and the nitrogen delivery module.

[0013] Furthermore, the rivet conveying module includes a conveying unit and a feeding unit, and the conveying unit is arranged between the feeding unit and the welding positioning module. After the rivet enters the feeding unit from the external vibration plate, it enters the welding positioning module through the conveying unit to dock with the material strip; the nitrogen conveying module includes a nitrogen control unit, and the nitrogen enters the welding positioning module under the control of the nitrogen control unit, and the material strip is welded to the rivet under the protection of nitrogen.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1) In the present invention, a material strip supporting mechanism is arranged on a processing table, a welding positioning mechanism is arranged on the material strip supporting mechanism, the material strip is supported and conveyed by the material strip supporting mechanism, and the welding positioning mechanism cooperates with the laser welding equipment, the welding positioning mechanism positions the material strip and exposes multiple butt welding points between the material strip and the rivet, so as to realize multi-point welding, the rivet distribution mechanism is butted with the welding positioning mechanism to continuously convey the rivets, and at the same time, nitrogen is conveyed to the welding positioning mechanism through an external nitrogen conveying mechanism to perform protective welding on the material strip, so as to realize automated and intelligent batch welding.

[0015] 2) In the present invention, three groups of welding grooves are arranged on the welding seat of the welding positioning mechanism. At the same time, three groups of nitrogen access heads are correspondingly arranged on the positioning plate above the welding grooves. At the same time, a nitrogen containing groove is arranged on the pressure plate below the positioning plate. The nitrogen containing groove can disperse the nitrogen and evenly enter the three welding grooves, so as to ensure that each welding groove is evenly protected by the low temperature of nitrogen during welding. If defective products appear later, poor welding due to uneven low temperature protection can be eliminated, which can improve the efficiency of maintenance, thereby further improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the overall structure of the strip automatic welding device with nitrogen protection.

[0018] Figure 2 This is a schematic diagram of the assembly structure of the welding seat and the pressure plate in the strip automatic welding device with nitrogen protection.

[0019] Figure 3 This is a schematic diagram of the structure of the welding seat in the strip automatic welding device with nitrogen protection.

[0020] Figure 4 This is a schematic diagram of the structure of the positioning plate in the strip automatic welding device with nitrogen protection.

[0021] Figure 5 This is a schematic diagram of the structure of the feed seat in the strip automatic welding device with nitrogen protection.

[0022] Among them: 1-processing table, 2-material strip support plate, 21-support roller, 3-welding seat, 31-limiting groove, 32-welding groove, 33-fixing plate, 4-pressing plate, 41-nitrogen containing groove, 42-positioning port, 5-positioning plate, 51-allowance hole, 52-nitrogen access head, 6-feeding assembly, 61-feeding seat, 611-feeding trough, 62-cover plate, 7-conveying assembly, 71-distributing part, 72-airway pressure plate, 8-nitrogen solenoid valve, 9-storage box. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0024] Embodiment 1: An automatic strip welding device with nitrogen protection, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, it includes a material strip support mechanism, which is used to position and support the material strip and convey the material strip, and the material strip support mechanism is respectively connected to an external material discharge device and a material receiving device, and the material strip passes through the material strip support mechanism and is welded with a rivet in a welding positioning mechanism; a welding positioning mechanism, which is arranged above the material strip support mechanism and connected to the material strip support mechanism, and three welding grooves 32 are arranged on the welding positioning mechanism, and the welding positioning mechanism is used to cooperate with an external laser welding device to weld the material strip and the rivet; a rivet distribution mechanism, which is connected to the welding positioning mechanism, and the rivet distribution mechanism is used to convey the rivet to the bottom of the material strip, and the rivet distribution mechanism is connected to an external vibration plate, and the rivet distribution mechanism is used to continuously supply rivets and convey the rivets to the welding positioning mechanism; a nitrogen delivery mechanism, which is used to fill nitrogen into the welding groove 32 to weld the material strip to protect it, so as to avoid oxidation reaction or over-welding during welding and produce defective products; a processing table 1, and the processing table 1 is used to set the material strip support mechanism, the welding positioning mechanism, the rivet distribution mechanism and the nitrogen delivery mechanism; The material strip support mechanism includes a material strip support plate 2 and two groups of support rollers 21, which are arranged at intervals between the two groups of support rollers 21, and each group of support rollers 21 includes two independent support rollers 21. The material strip passes through the external unloading device and is transferred from the support rollers 21 to the welding positioning mechanism, and then passes through the other side of the welding positioning mechanism and is received by the support rollers 21 on the opposite side and is passed into the external receiving device. The welding positioning mechanism is arranged between the two groups of support rollers 21, and a processing table 1 is arranged below the material strip support plate 2. The material strip support plate 2 is arranged at an interval from the processing table 1, and the bottom of the material strip support plate 2 is arranged There is a support column, which keeps a certain distance between the material strip support plate 2 and the processing table 1; the welding positioning mechanism includes a welding seat 3, a pressure plate 4 and a positioning plate 5, the welding seat 3 is arranged on the material strip support plate 2, the pressure plate 4 is located on the welding seat 3, and both ends of the welding seat 3 are provided with limiting grooves 31, the limiting grooves 31 are used to limit the material strip, the material strip enters between the welding seat 3 and the pressure plate 4 from the support roller 21, and the positioning port 42 of the welding seat 3 limits the material strip to the left and right, and at the same time enables the material strip to smoothly enter the welding seat 3; three welding grooves 32 are arranged on the welding seat 3, and the three welding grooves 3 2 is protrudingly arranged in the middle of the pressing plate 4 and matched with the pressing plate 4. A positioning hole 42 is arranged on the pressing plate 4. The positioning hole 42 is arranged at the position of the welding groove 32. The positioning hole 42 is used to make way for the protruding welding groove 32. The positioning plate 5 is matched with the pressing plate 4. A groove is arranged on the pressing plate 4 at the position of the positioning hole 42. The positioning plate 5 is arranged in the groove. A making way hole 51 is correspondingly arranged at the position of the welding groove 32 on the positioning plate 5. The making way hole 51 is used to make way for the welding groove 32. The external laser welding equipment welds the material strip from the top of the welding groove 32. The positioning plate 5 Three nitrogen access heads 52 are arranged on the top, and the nitrogen access heads 52 are used to connect the nitrogen delivery mechanism; the nitrogen access heads 52 are connected with the welding groove 32 after passing through the lower pressure plate 4, and a nitrogen containing groove 41 is arranged below the nitrogen access head 52 located on the positioning plate 5 on the pressure plate 4, and the nitrogen containing groove 41 is connected with the welding groove 32. The nitrogen containing groove 41 is a rectangular groove structure, and the nitrogen containing groove 41 is connected with the three welding grooves 32 at the same time. The nitrogen entering the nitrogen containing groove 41 can evenly enter the three welding grooves 32, so as to ensure that the nitrogen concentration in the three welding grooves 32 is consistent.

[0025] Embodiment 2: This embodiment further defines the rivet delivery mechanism and the nitrogen delivery mechanism on the basis of the above embodiment. Figure 1 and Figure 5As shown, a fixed plate 33 is provided on one side of the welding seat 3, and the fixed plate 33 is arranged parallel to the processing table 1, and a rivet distribution mechanism is arranged on the fixed plate 33; the rivet distribution mechanism includes a feeding assembly 6 and a conveying assembly 7, and the feeding assembly 6 is docked with the conveying assembly 7; three groups of feeding ports are arranged on the feeding assembly 6, and the feeding assembly 6 is docked with an external vibration disk, and the rivets are vibrated and diverted by the vibration disk so that the rivets are evenly dispersed into the three feeding ports, and are sent into the welding seat 3 through the distribution assembly to dock with the material belt, and laser welding is performed through an external laser welding device; the feeding assembly 6 includes a feeding seat 61 and a cover plate 62, and three feeding grooves 611 are arranged on the feeding seat 61, and the cover plate 62 is arranged on the feeding seat 61 to limit the rivets to prevent the rivets from falling out of the feeding groove 611; the rivet distribution mechanism includes a distribution piece 71 and an airway pressure plate 724, and the distribution piece 7 1 is provided with three slideways correspondingly, and multiple airways are provided on both sides of the slideways, and the airways are connected to an external air pump. The rivets are pushed into the welding groove 32 by external gas in the slideways to dock with the material belt; the nitrogen delivery mechanism includes a storage box 9, a nitrogen bottle group and a nitrogen solenoid valve 8; the storage box 9 is located below the processing table 1, the nitrogen bottle group is arranged in the storage box 9, the nitrogen solenoid valve 8 is arranged on the processing table 1, the nitrogen solenoid valve 8 is connected to the welding positioning mechanism and the nitrogen bottle group through a nitrogen hose, and each nitrogen access head 52 is plugged with a hose, and the hose is connected to the nitrogen solenoid valve 8 after being collected behind the welding positioning mechanism; the nitrogen solenoid valve 8 is connected to an external control host, and the control host is used to control the nitrogen gas output, so that the nitrogen is continuously and evenly supplied to the nitrogen containing tank 41 of the pressing plate 4, so that the nitrogen is uniformly and continuously entered into the welding groove 32 for protective welding. The other parts of this embodiment are the same as the above embodiment, and will not be repeated here.

[0026] Embodiment 3: An automatic strip welding system with nitrogen protection comprises: a strip support module, the strip support module is used to position, support and convey the strip, the strip support module is connected with an external material discharge device and a material receiving device, supports and continuously conveys the strip; a welding positioning module, the welding positioning module is used to cooperate with the strip support module and an external welding device to weld the strip and the rivet, the welding positioning module is located on the strip support module, two groups of strip conveying units are arranged on the strip support module, the welding positioning module is located between the two groups of strip conveying units, the strip enters the welding positioning module from the strip conveying unit for welding, the welding positioning module comprises a welding unit and a limiting unit, the limiting unit is arranged above the welding unit and limits the strip, and the external laser welding equipment welds the strip from above the limiting unit; a rivet distribution module, a rivet distribution module The block is docked with the welding positioning module, the rivet distribution module is used to transport rivets to the bottom of the material strip, the rivet distribution module includes a feeding unit and a feeding unit, the feeding unit is arranged between the feeding unit and the welding positioning module, the feeding unit is connected to an external vibration plate, the vibration plate continuously vibrates and transports rivets into the feeding unit, the feeding unit receives the rivets and continuously transports the rivets to the welding positioning module; a nitrogen delivery module, the nitrogen delivery module is used to fill nitrogen into the welding unit of the welding positioning module to perform welding protection on the material strip, the nitrogen delivery module includes a nitrogen control unit, the nitrogen control unit is connected to an external control host, nitrogen enters the welding positioning module under the control of the nitrogen control unit, and the material strip is welded with the rivet under the protection of nitrogen; a fixed platform is installed, and the fixed platform is installed to fix the material strip support module, the welding positioning module, the rivet distribution module and the nitrogen delivery module.

[0027] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship commonly placed when the product of the invention is used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. An automatic strip welding device with nitrogen protection, characterized in that: include: A material belt support mechanism, the material belt support mechanism is used to position, support and convey the material belt; A welding positioning mechanism, wherein the welding positioning mechanism is arranged on the material strip supporting mechanism, and at least one welding groove is arranged on the welding positioning mechanism, and the welding positioning mechanism is used to cooperate with an external laser welding device to weld the material strip and the rivet; A rivet distributing mechanism, the rivet distributing mechanism is connected to the welding positioning mechanism, and the rivet distributing mechanism is used to transport the rivets to the bottom of the material strip; A nitrogen delivery mechanism, wherein the nitrogen delivery mechanism is used to fill nitrogen into the welding tank to perform welding protection on the material strip; A processing table is used to set a material strip supporting mechanism, a welding positioning mechanism, a rivet distributing mechanism and a nitrogen conveying mechanism.

2. The strip automatic welding device with nitrogen protection as claimed in claim 1, characterized in that: The material strip support mechanism includes a material strip support plate and two groups of support rollers, the two groups of support rollers are spaced apart, the welding positioning mechanism is disposed between the two groups of support rollers, a processing table is disposed below the material strip support plate, and the material strip support plate and the processing table are spaced apart.

3. The strip automatic welding device with nitrogen protection as claimed in claim 2, characterized in that: The welding positioning mechanism includes a welding seat, a pressing plate and a positioning plate, the welding seat is arranged on the material strip support plate, the pressing plate is located on the welding seat, a limiting groove is arranged on the welding seat, and the limiting groove is used to limit the material strip; a positioning port is arranged in the middle of the pressing plate, a plurality of welding grooves are arranged on the welding seat, and the positioning port is arranged at the welding groove position; the positioning plate is arranged above the positioning port, and a clearance hole is arranged on the positioning plate corresponding to the welding groove position.

4. The strip automatic welding device with nitrogen protection as claimed in claim 3, characterized in that: At least one nitrogen access head is provided on the positioning plate, and the nitrogen access head is used to connect to a nitrogen delivery mechanism; the nitrogen access head is connected to a welding groove below, and nitrogen enters the welding groove through the nitrogen access head.

5. The strip automatic welding device with nitrogen protection as claimed in claim 3, characterized in that: A fixed plate is provided on one side of the welding seat, and the rivet distribution mechanism is provided on the fixed plate; the rivet distribution mechanism includes a feeding assembly and a conveying assembly, and the feeding assembly is docked with the conveying assembly; a plurality of feeding ports are provided on the feeding assembly, and the feeding assembly is docked with an external vibration disk, and the rivets are vibrated and diverted by the vibration disk so that the rivets are evenly dispersed into the plurality of feeding ports, and are fed into the welding seat through the distribution assembly and docked with the material belt, and laser welding is performed by an external laser welding device.

6. The strip automatic welding device with nitrogen protection as claimed in claim 4, characterized in that: The feed assembly comprises a feed seat and a cover plate, the feed seat is provided with a feed slot, and the cover plate is provided on the feed seat to limit the rivet and prevent the rivet from falling out of the feed slot.

7. The strip automatic welding device with nitrogen protection as claimed in claim 4, characterized in that: The rivet distributing mechanism includes a distributing part and an airway pressure plate. The distributing part is provided with multiple slideways. Airways are provided on both sides of the slideways. The airways are connected to an external air pump. The rivets are pushed into the welding groove by external gas in the slideways to dock with the material strip.

8. The strip automatic welding device with nitrogen protection as claimed in claim 1, characterized in that: The nitrogen delivery mechanism includes a storage box, a nitrogen bottle group and a nitrogen solenoid valve; the storage box is located below the processing table, the nitrogen bottle group is arranged in the storage box, the nitrogen solenoid valve is arranged on the processing table, and the nitrogen solenoid valve is connected to the welding positioning mechanism and the nitrogen bottle group through a nitrogen hose; the nitrogen solenoid valve is connected to an external control host, and the control host is used to control the gas output of nitrogen.

9. An automatic strip welding system with nitrogen protection, characterized in that: include: A material belt support module, the material belt support module is used to position, support and convey the material belt; A welding positioning module, which is used to cooperate with the material strip supporting module and external welding equipment to weld the material strip and the rivet; A rivet distribution module, the rivet distribution module is connected to the welding positioning module, and the rivet distribution module is used to transport rivets to the bottom of the material belt; A nitrogen delivery module, which is used to fill nitrogen into the welding positioning module to perform welding protection on the material strip; The fixing platform is installed and used to fix the material strip support module, the welding positioning module, the rivet distribution module and the nitrogen delivery module.

10. The strip automatic welding system with nitrogen protection as claimed in claim 9, characterized in that: The rivet conveying module includes a conveying unit and a feeding unit. The conveying unit is arranged between the feeding unit and the welding positioning module. After the rivet enters the feeding unit from the external vibration plate, it enters the welding positioning module through the conveying unit and docks with the material belt; the nitrogen conveying module includes a nitrogen control unit. Nitrogen enters the welding positioning module under the control of the nitrogen control unit, and the material belt is welded with the rivet under the protection of nitrogen.

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