Welding device, welding equipment and welding assembly method

Abstract

The present invention provides a welding device, welding equipment and welding assembly method, which relate to the technical field of automated equipment. The welding device includes a first conveying assembly, a second conveying assembly, a third conveying assembly and a welding assembly. The first conveying assembly is used to transport the first workpiece to the processing position and transport the first workpiece from the processing position to the next workstation. The second conveying assembly is used to transport the second workpiece onto the first workpiece, and the third conveying assembly is used to transport the third workpiece. The welding assembly is used to pick up the third workpiece, move the third workpiece onto the first workpiece and weld the third workpiece to the first workpiece. When the first workpiece is welded to the third workpiece, the third workpiece can limit the second workpiece to prevent the second workpiece from separating from the first workpiece. Through the above-mentioned automated welding method, the work efficiency is high and will not damage the operator's eyes.

Description

Technical Field

[0001] The present invention relates to the technical field of automation equipment, and in particular to a welding device, welding equipment and a welding assembly method. Background Art

[0002] Welding is a common technique used in processing plants to connect two components. However, existing welding is usually done manually using electric welding tools, which is not only inefficient but also causes significant damage to the operator's eyes. Summary of the Invention

[0003] Based on this, it is necessary to provide a welding device to address the problems that manual electric welding is inefficient and easy to hurt eyes.

[0004] The present invention provides a welding device, comprising:

[0005] a first conveying assembly for conveying a first workpiece to a processing station and conveying the first workpiece from the processing station to a next station;

[0006] a second conveying assembly, for conveying a second workpiece onto the first workpiece;

[0007] a third conveying assembly, for conveying a third workpiece;

[0008] The welding assembly is used to pick up the third workpiece, move the third workpiece onto the first workpiece and weld the third workpiece to the first workpiece. When the first workpiece and the third workpiece are welded to each other, the third workpiece can limit the second workpiece to prevent the second workpiece from separating from the first workpiece.

[0009] The welding device includes a first conveyor assembly capable of transporting a first workpiece to a processing station, a second conveyor assembly capable of transporting a second workpiece to a processing station, and a welding assembly capable of picking up a third workpiece transported by a third conveyor assembly and welding the third workpiece to the first workpiece. While the third workpiece is welded to the first workpiece, the third workpiece prevents the second workpiece from separating from the first. This automated welding method achieves high efficiency and is safe for the operator's eyes.

[0010] In one embodiment, the second conveying assembly includes a first conveying structure and a second conveying structure, and the first conveying structure is used to convey the plurality of second workpieces in the material tray one by one along the first direction to the second conveying structure, so that the second conveying structure can push the second workpieces along the second direction onto the first workpiece, and the first direction and the second direction are arranged at an angle.

[0011] In one embodiment, the first conveying structure includes a first track, and the second workpiece can be conveyed to the second conveying structure along the first track. The second conveying structure includes a first push rod and a first limit member. The first limit member is used to limit the second workpiece from deviating from the first track. The first push rod can push the second workpiece and overcome the limitation of the first limit member to slide onto the first workpiece.

[0012] In one embodiment, the second conveying structure further includes a second limit member and a second track, and the second limit member is arranged on the side of the first limit member facing away from the first push rod. The second workpiece can overcome the restriction of the first limit member and slide into the second track, and slide onto the first workpiece under the guidance of the second limit member.

[0013] In one embodiment, the third conveying assembly includes a third conveying structure and a fourth conveying structure, and the third conveying structure is used to convey the plurality of third workpieces in the material tray one by one along the third direction to the fourth conveying structure, so that the fourth conveying structure can push the third workpieces along the fourth direction to the welding assembly, and the third direction is arranged at an angle to the fourth direction.

[0014] In one embodiment, the third workpiece has a protrusion, the welding assembly includes a welding part and a magnetic part, the welding part is provided with a positioning groove, and the magnetic part can magnetically attract the third workpiece so that the protrusion is engaged with the positioning groove.

[0015] In one embodiment, the welding assembly further includes a driving motor, a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected to the driving motor, the other end of the first connecting rod is rotatably connected to the second connecting rod, and the second connecting rod is connected to the welding part; the driving motor can drive the first connecting rod to rotate, so as to drive the first connecting rod to drive the second connecting rod to move back and forth, and then the second connecting rod drives the welding part to move back and forth.

[0016] In one embodiment, the first conveying assembly includes a third slide rail, a sliding member and a plurality of pushing members, wherein the plurality of pushing members are arranged on the sliding member at intervals, and a receiving space for placing the first workpiece is formed between two adjacent pushing members. The sliding member can drive the plurality of pushing members to move, so that the pushing members drive the first workpiece to slide on the third slide rail to the processing position.

[0017] In one embodiment, a loading assembly is further included, which includes a discharge structure and a grasping structure. The discharge structure is used to hold multiple first workpieces stacked on each other, and the grasping structure is used to grasp the multiple first workpieces one by one and move them to the first conveying assembly.

[0018] The present invention also provides a welding device, comprising a controller and the above-mentioned welding device, wherein the controller is simultaneously connected to the first conveying component, the second conveying component, the third conveying component and the welding component.

[0019] The present invention also provides a welding assembly method, which uses the above-mentioned welding device and has the following steps:

[0020] transporting the first workpiece to a processing location using a first conveyor assembly;

[0021] transporting the second workpiece onto the first workpiece using a second conveyor assembly;

[0022] transporting a third workpiece to the welding assembly using a third conveyor assembly;

[0023] Using the welding assembly, the picked-up third workpiece is moved onto the first workpiece and fastened to the second workpiece;

[0024] The third workpiece is welded to the first workpiece using a welding assembly, so that the third workpiece limits the second workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the welding equipment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the welding equipment of the present invention after assembling three workpieces;

[0027] Figure 3 A structural schematic diagram of a material discharge structure of the present invention from one perspective;

[0028] Figure 4 A structural schematic diagram of the discharge structure of the present invention from another perspective;

[0029] Figure 5 A schematic structural diagram of the gripping structure of the present invention from one perspective;

[0030] Figure 6 This is a structural schematic diagram of the gripping structure of the present invention when the gripping structure places the first workpiece on the second conveying assembly;

[0031] Figure 7 This is a structural schematic diagram of the gripping structure of the present invention when picking up the first workpiece;

[0032] Figure 8 It is a structural schematic diagram of the first transmission component of the present invention;

[0033] Figure 9 is a schematic structural diagram of the second transmission assembly of the present invention;

[0034] Figure 10 is a schematic structural diagram of the third transmission assembly of the present invention;

[0035] Figure 11 It is a structural schematic diagram of the welding assembly of the present invention;

[0036] Figure 12 It is a structural schematic diagram of the welding structure of the present invention. DETAILED DESCRIPTION

[0037] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following is a clear and complete description of the specific embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the specific details described below are only some embodiments of the present invention, and the present invention can also be implemented in many other embodiments different from those described herein. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0040] refer to Figure 1 The present invention provides a welding device 100 for automatically assembling three workpieces, assembling the three workpieces together for ease of use. The welding device 100 is highly efficient in welding and assembling, and poses no risk to operators.

[0041] Welding apparatus 100 includes a welding device 101, a chassis 102, a controller (not shown), and a loading device 1. The controller and welding device 101 are located within chassis 102, and the controller is electrically connected to the welding device. The controller can be an operating panel located on chassis 102 or a handheld terminal, and is used to operate welding device 101 to perform welding and assembly on workpieces.

[0042] The welding device 101 is used to connect a first workpiece 103, a second workpiece 104 and a third workpiece 105. Figure 2 The first workpiece 103 is a cover plate, the second workpiece 104 is a pull ring, and the third workpiece 105 is a retaining buckle. More specifically, the welding device 101 first places the second workpiece 104 on the first workpiece 103 and then welds the third workpiece 105 to the first workpiece 103, thereby confining the second workpiece 104 between the first and third workpieces 103 and 105. During use, the pull ring can be pulled by hand to facilitate carrying the cover plate, and the pull ring can also rotate relative to the cover plate.

[0043] It is understandable that in other embodiments, the first workpiece 103 , the second workpiece 104 and the third workpiece 105 may also be other types of product workpieces, which are not limited herein.

[0044] The welding device 101 includes a first conveyor assembly 2, a second conveyor assembly 3, a third conveyor assembly 4, a welding assembly 5, a first storage sieve 6, and a second storage sieve 7. The first storage sieve 6 stores a plurality of randomly mixed second workpieces 104. The first storage sieve 6 is used to transport the plurality of second workpieces 104 one by one to the second conveyor assembly 3, so that the second conveyor assembly 3 transports the second workpieces 104 one by one to the processing position.

[0045] The second material storage sieve 7 stores a plurality of randomly mixed third workpieces 105 , and the second material storage sieve 7 is used to transport the plurality of third workpieces 105 one by one to the third conveying assembly 4 , so that the third conveying assembly 4 transports the third workpieces 105 one by one to the processing position for welding.

[0046] The first material storage sieve bucket 6 and the second material storage sieve bucket 7 are prior art and will not be described in detail here.

[0047] The loading assembly 1 includes a discharge structure 11 and a grasping structure 12 . The discharge structure 11 is used to hold a plurality of first workpieces 103 stacked on top of each other. The grasping structure 12 is used to grasp the plurality of first workpieces 103 one by one and move them to the first conveying assembly 2 .

[0048] refer to Figure 3 and Figure 4The unloading structure 11 includes a fixed bracket 111, a unloading motor 112, a conveyor belt 113, a supporting plate 114, a first magnetic member 115, and a second magnetic member 116. The unloading motor 112, the conveyor belt 113, the supporting plate 114, the first magnetic member 115, and the second magnetic member 116 are all mounted on the fixed bracket 111. The unloading motor 112 is connected to the conveyor belt 113, and drives the plurality of first workpieces 103 located on the fixed bracket 111 to move via the conveyor belt 113. The first magnetic member 115 is mounted on the supporting plate 114.

[0049] A support plate 1111 and a guide plate 1112 are provided on the fixed bracket 111. The support plate 1111 is arranged opposite the conveyor belt 113. There are two guide plates 1112, one on each side of the support plate 1111. A plurality of first workpieces 103 are placed vertically on the support plate 1111, with the tops of the first workpieces 103 contacting the conveyor belt 113 and the sides of the first workpieces 103 leaning against the two guide plates 1112. This is equivalent to the support plate 1111, the guide plates 1112, and the conveyor belt 113 enclosing the first workpieces 103.

[0050] The length of the carrier plate 114 is parallel to the direction of movement of the conveyor belts 113 and is positioned between the upper and lower conveyor belts 113. Multiple first magnetic members 115 are provided. These first magnetic members 115 are fixed to the side of the carrier plate 114 facing away from the support plate 1111 and are arranged linearly along the length of the carrier plate 114.

[0051] The unloading motor 112 can drive the conveyor belt 113 to move counterclockwise in the figure via the transmission belt 1121, so that the conveyor belt 113 can slowly move the multiple first workpieces 103 toward the grasping structure 12 through friction. During the movement of the first workpieces 103, the first workpieces 103 will be attracted by the first magnetic element 115 at any position to prevent the first workpieces 103 from falling.

[0052] There are three second magnetic members 116, and the three second magnetic members 116 are respectively arranged on the support plate 1111 and the two guide plates 1112 near the ends of the grasping structure 12, so that the first workpiece 103 transported to the grasping structure 12 can be straightened under the magnetic action of the first magnetic member 115 and the second magnetic member 116, so that the grasping structure 12 can grasp the first workpiece 103 and move the first workpiece 103 to the first conveying component 2.

[0053] refer to Figure 5 、 Figure 6 and Figure 7The grabbing structure 12 includes a fixed frame 121, a grabbing cylinder 122, a driving member 123, a transmission member 124, a guide member 125, and a picking member 126. The grabbing cylinder 122, the driving member 123, and the guide member 125 are all disposed on the fixed frame 121. The grabbing cylinder 122 is rotatably connected to the driving member 123, the driving member 123 is fixedly connected to the transmission member 124, the transmission member 124 is fixedly connected to the guide member 125, and the transmission member 124 is fixedly connected to the picking member 126.

[0054] The drive member 123 comprises a first drive section 1231 and a second drive section 1232, which are perpendicular to each other. One end of the first drive section 1231 is pivotally connected to the telescopic rod of the grabbing cylinder 122, while the other end of the first drive section 1231 and the second drive section 1232 are integrally formed. The second drive section 1232 passes through the fixed frame 121 and is pivotally connected to it. The end of the second drive section 1232, which is distal to the first drive section 1231, is fixedly connected to the transmission member 124.

[0055] The transmission member 124 includes a first transmission section 1241 and a second transmission section 1242 that are perpendicular to each other. One end of the first transmission section 1241 is fixedly connected to the second drive section 1232, and the other end of the first transmission section 1241 is rotatably connected to the second transmission section 1242. The end of the second transmission section 1242 away from the first transmission section 1241 is fixedly connected to the picking member 126.

[0056] The guide member 125 includes a first guide section 1251 and a second guide section 1252, which are perpendicular to each other. One end of the first guide section 1251 is rotatably connected to the fixed frame 121, and the other end of the first guide section 1251 is fixedly connected to the second guide section 1252. The end of the second guide section 1252, which is away from the first guide section 1251, is fixedly connected to the second transmission section 1242. The second guide section 1252 is a retractable component.

[0057] The picking member 126 includes a connecting cross bar 1261 and two picking rods 1262. The middle part of the connecting cross bar 1261 is connected to the second transmission section 1242, and the two sides of the connecting cross bar 1261 are fixedly connected to the two picking rods 1262. A suction cup 1263 is provided at one end of the two picking rods 1262 away from the connecting cross bar 1261.

[0058] The two picking rods 1262 are both hollow tubes. The end of the picking rod 1262 away from the suction cup 1263 is connected to a vacuum pump (not shown in the figure). The vacuum pump forms a negative pressure on the suction cup 1263, so that the suction cup 1263 can adsorb the first workpiece 103.

[0059] The process of the gripping structure 12 picking up the first workpiece 103 is as follows:

[0060] The grabbing cylinder extends, thereby moving the first drive section 1231. The first drive section 1231 then drives the second drive section 1232 to rotate relative to the fixed frame 121. The second drive section 1232 then drives the first transmission section 1241 to rotate about the central axis of the second drive section 1232. The first transmission section 1241 then drives the second transmission section 1242 to rotate. Because the second transmission section 1242 is fixedly connected to the second guide section 1252, the second transmission section 1242 rotates relative to the first transmission section 1241 under the restraining action of the second guide section 1252. The second transmission section 1242 then drives the pick-up member 126 to rotate relative to the first transmission section 1231, causing the length extension direction of the two pick-up rods 1262 to be parallel to the thickness direction of the first workpiece 103, achieving Figure 5 The state shown facilitates the suction cup 1263 to be attached to the first workpiece 103 , and under the action of the vacuum pump, the suction cup 1263 absorbs the first workpiece 103 .

[0061] After the suction cup 1263 absorbs the first workpiece 103, the picking cylinder 121 is controlled to retract and drive all parts to move in the opposite direction, so that the suction cup 1263 rotates 90 degrees to achieve Figure 6 In the state shown, the vacuum pump stops working, the suction cup stops adsorbing the first workpiece 103, and the first workpiece 103 is placed on the first conveying assembly 2. The first workpiece 103 is driven to the processing position by the first conveying assembly 2.

[0062] refer to Figure 8 The first conveyor assembly 2 includes a third slide rail 21, a sliding member 22, and a plurality of pushers 23. The pushers 23 are spaced apart on the sliding member 22, and a receiving space 24 for the first workpiece 103 is formed between two adjacent pushers 23. Driven by a drive structure (not shown) connected thereto, the sliding member 24 can move in a direction away from the unloading assembly 1. The sliding member 24 then drives the plurality of pushers 23 to move, so that the pushers 23 push the first workpiece 103 located in the receiving space 24 to slide on the third slide rail 21 to the processing position. The processing position can be understood as the position where the three workpieces are assembled.

[0063] The second conveying assembly 3 is used to sort the plurality of second workpieces 104 one by one and transport each second workpiece 104 to the first workpiece 103 one by one.

[0064] refer to Figure 9 The second conveying assembly 3 includes a first conveying structure 31 and a second conveying structure 32. The two ends of the first conveying structure 31 are respectively connected to the second conveying structure 32 and the above-mentioned first storage screen 6.

[0065] The first material storage sieve 6 is used to organize the plurality of second workpieces 104 that are randomly placed in an orderly manner and transport them one by one to the first conveying structure 31 .

[0066] The first conveying structure 31 is used to convey the second workpieces 104 transported by the first storage screen 6 to the second conveying structure 32 one by one along the first direction, so that the second conveying structure 33 can push the second workpiece 104 onto the first workpiece 103 along the second direction. The first direction and the second direction are perpendicular to each other. In other embodiments, the first direction and the second direction can also be arranged at other angles, which are not limited here.

[0067] The first conveying structure 31 includes a first track 311 , which is connected to a corresponding driving structure (not shown in the figure) to drive the first track 311 to move linearly toward the second conveying structure 32 , thereby driving the second workpiece 104 to be conveyed along the first track 311 to the second conveying structure 32 .

[0068] The second conveying structure 32 includes a second conveying cylinder 321, a first push rod 322, a first stopper 323, a second stopper 324, and a second fixing block 325. The second conveying cylinder 321 is connected to the first push rod 322, and the first stopper 323 and the second stopper 324 are both connected to the fixing block 325. The first stopper 323 is disposed between the second conveying cylinder 321 and the second stopper 324.

[0069] The fixing block 325 defines a second track 3251 along the second direction. The second track 3251 is connected to the first track 311 and is perpendicular to each other.

[0070] The first limiter 323 is used to limit the second workpiece 104 from sliding along the second track 3251 before being pushed by the first push rod 322 , so that the first push rod 322 can stably push the second workpiece 104 and overcome the limitation of the first limiter 323 to slide onto the first workpiece 103 .

[0071] The first stopper 323 is a bent spring with elastic deformation capability. Initially, the first stopper 323 blocks the second workpiece 104 from sliding along the second track 3251. Pushed by the first push rod 322, the second workpiece 104 presses against the first stopper 323, causing it to elastically deform and slide toward the second stopper 324.

[0072] The second limiting member 324 is also a bent spring piece. The portion of the second limiting member 324 close to the second track 3251 is parallel to the second track 3251 and can guide the second workpiece 104 to slide along the second track 3251 .

[0073] The first push rod 322 is provided with an avoidance groove 3221 along its length extension direction. When the first push rod 322 pushes the second workpiece 104, the avoidance groove 3221 passes through the first limit member 323 and the second limit member 324 in sequence, thereby preventing the first limit member 323 and the second limit member 324 from hindering the first push rod 322 from pushing the second workpiece 104 onto the first workpiece 103.

[0074] It should be noted that before the second workpiece 104 is processed, only the processed part is located on the first workpiece 103, and the remaining part is still located on the second track 3251 and is pressed and fixed by the second limit member 324, so that the second workpiece 104 can complete the processing stably.

[0075] refer to Figure 10 The third conveying assembly 4 includes a third conveying structure 41, a fourth conveying structure 42, and a fifth conveying structure 43. The two ends of the third conveying structure 41 are connected to the fourth conveying structure 42 and the second storage sieve 7, and the fourth conveying structure 42 is connected to the fifth conveying structure 43. The third conveying structure 41 is used to convey the plurality of third workpieces 105 in the second storage sieve 7 one by one along the third direction to the fourth conveying structure 42, so that the fourth conveying structure 42 pushes the third workpieces 105 along the fourth direction to the fifth conveying structure 43, and the fifth conveying structure 43 then pushes the third workpieces 105 onto the welding assembly 5. The third direction and the fourth direction are perpendicular to each other. In other embodiments, the third direction and the fourth direction can also be arranged at other angles, which are not limited here.

[0076] The third conveying structure 41 includes a third rail 411, and the third rail 411 is connected to a corresponding driving structure (not shown in the figure) to drive the third rail 411 to move linearly toward the fourth conveying structure 42, thereby driving the third workpiece 105 to be conveyed along the third rail 411 to the fourth conveying structure 42.

[0077] The fourth conveyor structure 42 includes a third conveyor cylinder 421 and a fourth track 422. The fourth track 422 is connected to the third track 411. When the third workpiece 105 is transferred from the third track 411 to the fourth track 422, it is detected by the corresponding infrared sensor. In response to this, the third conveyor cylinder 421 pushes the third workpiece 105 to slide along the fourth track 422 to the fifth conveyor structure 43.

[0078] The fifth conveying structure 43 includes a fourth conveying cylinder 431, a fifth track 432, and a fifth pusher 433. The fourth conveying cylinder 431 is connected to the fifth pusher 433, driving the fifth pusher 433 to slide back and forth. The fifth track 432 is arranged parallel to the third track 411. When the third conveying cylinder 421 transports the third workpiece 105 along the fourth track 422 to the fifth track, the fourth conveying cylinder 431 drives the fifth pusher 433 to push the third workpiece 105 along the fifth track 432 to the welding assembly 5.

[0079] The fifth pushing member 433 is in a downwardly curved arc shape, which facilitates pushing the third workpiece 105 to the welding assembly 5 and can also prevent the fifth pushing member 433 from touching the welding assembly 5 .

[0080] The welding assembly 5 includes an upper welding structure 51 and a lower welding structure 52 disposed opposite each other. When the first workpiece 103 is transported to the processing position, the first workpiece 103 is positioned between the upper welding structure 51 and the lower welding structure 52. The upper welding structure 51 and the lower welding structure 52 are electrically connected to the positive and negative poles of the power supply, respectively. When the power is on, the upper welding structure 51 and the lower welding structure 52 are simultaneously abutted to complete welding.

[0081] refer to Figure 11 and Figure 12 The lower welding structure 52 includes a lower welding member 521, a negative electrode connector 522, an insulating member 523, a movable member 524, a buffer spring 525, and a bearing seat 526. The bearing seat 526 is fixed to the chassis 102, the movable member 524 is slidably connected to the bearing seat 526, the buffer spring 525 is sleeved on the movable member 524, and the two ends of the buffer spring 524 are respectively connected to the movable member 524 and the bearing seat 526. The insulating member 523 is disposed between the movable member 524 and the negative electrode connector 522, the negative electrode connector 522 is disposed on the side of the insulating member 523 facing away from the movable member 524, and the lower welding member 521 is disposed on the side of the negative electrode connector 522 facing away from the insulating member 523.

[0082] The moving part 524 includes a moving block 5241, a first guide column 5242, a second guide column 5243 and a limiting ring 5244, wherein one end of the moving block 5241 is connected to the insulating part 523, and the other end is connected to the first guide column 5242 and the second guide column 5243, the limiting ring 5244 is threadedly connected to the first guide column 5242, and the two ends of the buffer spring 525 are respectively connected to the limiting ring 5244 and the bearing seat 526, and the limiting ring 5244 can be threadedly rotated relative to the first guide column 5242 to adjust the initial deformation of the buffer spring. The first guide column 5242 and the second guide column 5243 are both slidably connected to the bearing seat 526. When the moving block 5241 is subjected to external force and approaches the bearing seat 526, the moving block 5241 drives the first guide column 5242 and the second guide column 5243 to slide relative to the bearing seat 526 at the same time. At the same time, the limiting ring 5244 presses the buffer spring 525, driving the buffer spring 525 to accumulate elastic force. When the moving block 5241 is not subjected to external force, the buffer spring 525 can release the elastic force to drive the moving block 5241 to reset.

[0083] The first guide post 5242 and the second guide post 5243 can guide the upward and downward sliding of the moving block 5241 , so that the moving block 5241 can slide stably.

[0084] The negative electrode connector 522 is used to electrically connect to the negative electrode of the power supply so that the lower welding part 521 can be connected to the negative electrode of the power supply. The initial height of the lower welding part 521 is slightly higher than the height of the first workpiece 103 on the processing position, so the lower welding part 521 will slightly lift the first workpiece 103 that is being transported. As the upper welding structure 51 presses down, the first workpiece 103 is driven toward the lower welding part 521, so that the first workpiece 103 presses down on the lower welding part 521. The lower welding part 521 accumulates elastic force by pressing against the buffer spring 521 through the limit ring 5244. When the upper welding structure 51 rises and cancels the downward pressure on the first workpiece 103, the buffer spring 521 can release the elastic force to drive the lower welding part 521 to rise and reset. The buffer spring 521 not only buffers the downward pressure of the upper welding structure 51 to prevent the first workpiece from being squeezed and deformed, but also enables the upper welding structure 51 and the lower welding structure 52 to be in close contact with the first workpiece 103, ensuring stable welding.

[0085] refer to Figure 11The upper welding structure 51 further includes a driving motor 511, a first connecting rod 512, a second connecting rod 513, an upper welding member 514, and a fourth magnetic member 515. One end of the first connecting rod 512 is rotatably connected to the driving motor 511, and the other end of the first connecting rod 512 is rotatably connected to the second connecting rod 513. The second connecting rod 513 is connected to the fourth magnetic member 515, and the fourth magnetic member 515 is connected to the upper welding member 514. The driving motor 511 can drive the first connecting rod 512 to rotate, so that the first connecting rod 512 drives the second connecting rod 513 to move back and forth, and then the second connecting rod 513 drives the upper welding member 514 to move back and forth.

[0086] The upper welding piece 514 is electrically connected to the positive pole of the power supply. When the first workpiece 103 needs to be welded, the driving motor 511 can be controlled to rotate so that the driving motor 511 drives the upper welding piece 514 downward through the first connecting rod 512 and the second connecting rod 513 in turn.

[0087] The upper welding member 514 is provided with a positioning groove 5141. The third workpiece 105 has a protrusion whose shape matches the positioning groove 5141. When the fourth conveying cylinder 431 pushes the third workpiece 105 along the fifth track 432, the third workpiece 105 gradually approaches the upper welding member 514. The protrusion of the third workpiece 105 slides into the positioning groove 5141 of the upper welding member 514, so that the protrusion engages with the positioning groove to position the third workpiece 105. When the upper welding member 514 is pressed downward, the third workpiece 105 can be accurately engaged with the second workpiece 104. Due to the magnetic attraction of the fourth magnetic member 515, the third workpiece 105 can be attracted, so that the third workpiece 105 can stay on the upper welding member 514 before the upper welding member 514 is pressed downward.

[0088] After the third workpiece 105 is fixed on the upper welding part 514, the driving motor 511 controls the upper welding part 514 to press down until the third workpiece 105 is engaged with the second workpiece 104, and the upper welding part 514 contacts the first workpiece 103, forming a passage with the lower welding part 521, and the third workpiece 105 is welded to the first workpiece 103.

[0089] The present invention also provides a welding assembly method, which is implemented using the above-mentioned welding device. The specific operating steps are as follows:

[0090] Using a controller to control the first conveying assembly 2 to transport the first workpiece 103 to the processing position;

[0091] Using a controller to control the second conveying assembly 3 to transport the second workpiece 104 to the first workpiece 103;

[0092] The controller controls the third conveying assembly 4 to transport the third workpiece 105 to the upper welding member 514 of the welding assembly 5 , and the fourth magnetic member 515 magnetically attracts the third workpiece 105 , so that the third workpiece 105 is fixed on the upper welding member 514 ;

[0093] The controller is used to control the driving motor 511 to drive the upper welding part 514 to press down. The upper welding part 514 drives the third workpiece 105 to stick to the first workpiece 103 and snap the second workpiece 104 together. The upper welding part 514 and the lower welding part 521 are energized and welded at the same time, so that the third workpiece 105 is welded to the first workpiece 103 to limit the second workpiece 104.

[0094] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0095] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations, substitutions, and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention should be determined by the claims.

Claims

1. A welding device, characterized in that: include: a first conveying assembly for conveying a first workpiece to a processing station and conveying the first workpiece from the processing station to a next station; a second conveying assembly, for conveying a second workpiece onto the first workpiece; a third conveying assembly, for conveying a third workpiece; a welding assembly, configured to pick up the third workpiece, move the third workpiece onto the first workpiece, and weld the third workpiece to the first workpiece, wherein when the first workpiece and the third workpiece are welded to each other, the third workpiece can limit the second workpiece to prevent the second workpiece from separating from the first workpiece; The second conveying assembly includes a first conveying structure and a second conveying structure, the first conveying structure is used to convey the plurality of second workpieces in the tray one by one along a first direction to the second conveying structure, so that the second conveying structure can push the second workpieces onto the first workpiece along a second direction, and the first direction and the second direction are arranged at an angle; The third workpiece has a protrusion, the welding assembly includes a welding part and a magnetic part, the welding part is provided with a positioning groove, and the magnetic part can magnetically attract the third workpiece so that the protrusion is clamped in the positioning groove.

2. The welding device according to claim 1, characterized in that The first conveying structure includes a first track, and the second workpiece can be conveyed to the second conveying structure along the first track. The second conveying structure includes a first push rod and a first limit member. The first limit member is used to limit the second workpiece from deviating from the first track. The first push rod can push the second workpiece and overcome the limitation of the first limit member to slide onto the first workpiece.

3. The welding device according to claim 2, characterized in that The second conveying structure also includes a second limit member and a second track. The second limit member is arranged on the side of the first limit member facing away from the first push rod. The second workpiece can overcome the limitation of the first limit member and slide into the second track, and slide onto the first workpiece under the guidance of the second limit member.

4. The welding device according to claim 1, characterized in that The third conveying assembly includes a third conveying structure and a fourth conveying structure. The third conveying structure is used to convey the multiple third workpieces in the material tray one by one along the third direction to the fourth conveying structure, so that the fourth conveying structure can push the third workpieces along the fourth direction to the welding assembly. The third direction is arranged at an angle to the fourth direction.

5. The welding device according to claim 1, characterized in that The welding assembly also includes a driving motor, a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected to the driving motor, the other end of the first connecting rod is rotatably connected to the second connecting rod, and the second connecting rod is connected to the welding part; the driving motor can drive the first connecting rod to rotate, so as to drive the first connecting rod to drive the second connecting rod to move back and forth, and then the second connecting rod drives the welding part to move back and forth.

6. The welding device according to claim 1, characterized in that The first conveying component includes a third slide rail, a sliding member and multiple pushing members. The multiple pushing members are arranged on the sliding member at intervals. A storage space for placing the first workpiece is formed between two adjacent pushing members. The sliding member can drive the multiple pushing members to move so that the pushing members drive the first workpiece to slide on the third slide rail to the processing position.

7. A welding device, characterized in that: It includes a loading component and a welding device as described in any one of claims 1 to 6, wherein the loading component includes a discharge structure and a grasping structure, the discharge structure is used to hold multiple first workpieces stacked on each other, and the grasping structure is used to grasp the multiple first workpieces one by one and move them to the first conveying component, so that the first conveying component transports the first workpiece to the processing position.

8. A welding assembly method, characterized in that: Using the welding device according to any one of claims 1 to 6, and having the following steps: transporting the first workpiece to a processing location using a first conveyor assembly; transporting the second workpiece onto the first workpiece using a second conveyor assembly; transporting a third workpiece to the welding assembly using a third conveyor assembly; Using the welding assembly, the picked-up third workpiece is moved onto the first workpiece and fastened to the second workpiece; The third workpiece is welded to the first workpiece using a welding assembly, so that the third workpiece limits the second workpiece.

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