A double-station welding device for automobile exhaust valve

Abstract

The present invention discloses a double-station welding device for automobile exhaust valves, comprising a support frame, both sides of the inner wall of the support frame are fixedly connected with mounting plates, a conveyor belt is installed on the top surface of each mounting plate, the top of the support frame is fixedly connected with a top plate, a feeding mechanism is installed above the conveyor belt, a welding mechanism is arranged on the top of the feeding mechanism, a feeding and splicing mechanism is arranged on the top of the welding mechanism, two hydraulic cylinders are fixedly connected with the top surface of the top plate, the bottom end of the hydraulic cylinder is fixedly connected with a lifting platform, the bottom end of the inner wall of the support frame is fixedly connected with an air supply end, vertical rods are arranged on the front and rear sides of the lifting platform, the outer wall of the hydraulic cylinder is fixedly connected with a pressure plate, and two movable guide rails are arranged between the two conveyor belts. The present invention does not need to frequently adjust the welding position of the workpiece, thereby improving the welding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of exhaust valve welding, in particular to a double-station welding device for an automobile exhaust valve. Background Art

[0002] Dual-station welding of automobile exhaust valves usually refers to the welding process of automobile exhaust valves, which is an important component in the automobile exhaust system and is used to control and regulate the exhaust gas flow and noise. In the automobile manufacturing process, the installation and welding of exhaust valves is a key step, and the welding quality and sealing need to be ensured to prevent gas leakage and system failure.

[0003] Announcement No. CN117324872B discloses a welding device for an automobile sound wave valve, comprising a frame, wherein a clamping mechanism and a three-axis slide are respectively arranged on the front and rear sides of the upper end of the frame, a welding gun is arranged on the three-axis slide, the clamping mechanism comprises a fixed block, a first cylinder and a stepping motor, a transverse axis is rotated laterally in the fixed block, a support block for accommodating the rotation of the tilting axis is arranged on the fixed block, the tilting axis is transmission-connected to the transverse axis, a connecting shaft connected to the tilting axis through a universal joint is arranged at the lower end of the first cylinder, and a clamping member for clamping the sound wave valve is relatively arranged at the end of the piston rod of the first cylinder and a side away from the piston rod. The advantage of this method is that it can automatically and orderly rotate the clamped sonic valve, reverse after changing direction, and reset in the opposite direction, and complete the welding of the upper and lower parts of the upper shaft rod when the sonic valve rotates and reverses, saving time and effort and improving the welding quality. However, there is a problem that the welding needs to constantly adjust the weld position of the workpiece, which affects the welding efficiency. Therefore, it is necessary to design a double-station welding device for automobile exhaust valves. Summary of the invention

[0004] The purpose of the present invention is to provide a dual-station welding device for automobile exhaust valves to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a double-station welding device for automobile exhaust valves, comprising a support frame, both sides of the inner wall of the support frame are fixedly connected with mounting plates, a conveyor belt is installed on the top surface of each mounting plate, the top of the support frame is fixedly connected with a top plate, a feeding mechanism is installed above the conveyor belt, a welding mechanism is arranged at the top of the feeding mechanism, a feeding and splicing mechanism is arranged at the top of the welding mechanism, two hydraulic cylinders are fixedly connected to the top surface of the top plate, the bottom end of the hydraulic cylinder is fixedly connected with a lifting platform, the bottom end of the inner wall of the support frame is fixedly connected with an air supply end, vertical rods are arranged on the front and rear sides of the lifting platform, and the outer wall of the hydraulic cylinder is fixed A pressure plate is connected, and two moving guide rails are arranged between the two conveyor belts. A workpiece drop bucket is fixedly connected to the moving guide rail on one side close to the lifting platform. Three vertical rods are arranged, and each vertical rod is slidably connected to the lifting platform. The two moving guide rails are fixedly connected to the support frame. The welding mechanism includes a mounting plate. The mounting plates are arranged in multiple places, and the multiple mounting plates are divided into two groups and are respectively fixedly connected to the left and right top surfaces of the lifting platform. A track ring is fixedly connected to the side of each mounting plate away from the lifting platform. Ring track grooves are provided on the upper and lower sides of the track ring. A crown tooth is fixedly connected to the top surface of the track ring. A ring shift block is slidably connected to the outer side of the track ring. The top of the ring shift block is rotatably connected There is an engaging toothed disc, a guide disc is fixedly connected to the middle position of the engaging toothed disc, side grooves are provided on both sides of the guide disc, a welding gun seat is fixedly connected to the bottom surface of the annular shift block, a welding head is fixedly connected to the inner side of the welding gun seat, an air supply pipe is fixedly connected to the side of the welding head away from the track ring, a ventilation connecting pipe is rotatably connected to the bottom end of the air supply pipe, the ventilation connecting pipe is fixedly connected to the air supply end, the engaging toothed disc is meshed with the crown teeth through the side grooves, the ring track groove is slidably connected to the annular shift block, a penetration groove is provided on the side of the annular shift block, and a hydraulic cylinder connected through the top plate extends downward, so that the hydraulic cylinder pushes the connected lifting platform plate to move downward and drives the mounting plate to move downward, thereby allowing the mounting plate to drive the connected The track ring is put on the workpiece to be welded. After the other parts on the workpiece are aligned, the meshing gear disc on the ring shifting block is rotated to make the side grooves on the meshing gear disc mesh with the ring crown teeth on the track ring, and the meshing gear disc is driven by the external motor to slide along the ring track groove on the track ring, so that the track ring drives the connected welding gun seat to make circular motion around the joint of the workpiece through the welding head. When the track ring passes through the mounting plate, the mounting plate is passed through the side penetration groove through the track ring, so that the ring shifting block can move in a circle along the track ring without restriction. The motion structure of the ring shifting block and the track ring is adopted to improve the flexibility of the movement of the welding head, and there is no need to frequently adjust the welding position of the workpiece, which plays a role in improving the welding efficiency.

[0006] According to the above technical solution, the blanking and splicing mechanism includes a pressure block, and the pressure blocks are arranged in multiple locations, and the multiple pressure blocks are divided into two groups and are respectively fixedly connected to the left and right edge side walls of the pressure plate, and two pressure blocks are arranged below each of the pressure blocks, and a block connecting rod is fixedly connected to the side of each pressure block away from the pressure block, and a blocking member baffle is fixedly connected to the end of the block connecting rod away from the pressure block, and a drop groove end is arranged between the two blocking members, and the top of the drop groove end is fixedly connected to the placement end, and the blocking member baffle is away from the drop groove One end of the end is slidably connected with a flip baffle, and the outer walls of the bottom ends of both sides of the drop groove end are fixedly connected with a flip plate seat, the baffle plate is slidably connected to the drop groove end, and the flip plate seat is hingedly connected to the flip baffle, the top and bottom surfaces of the pressure-bearing complex block are both arranged as inclined arc surfaces, and the bottom surface of the pressure-applying block is arranged with an inclined surface, the baffle plate penetrates from the outer wall of the drop groove end to the inside, and a rubber strip is arranged at the bottom end of the flip baffle, the parts in the placing end will fall into the drop groove end, and the parts at the bottom of the drop groove end will be restricted from moving downward by the flip baffle, When the hydraulic cylinder extends downward, the hydraulic cylinder will drive the connected pressure plate to move downward together, so that the pressure block connected to the pressure plate moves downward and approaches the pressure block. When the pressure blocks on both sides are squeezed by the pressure blocks and approach each other, the pressure blocks move and drive the connected block connecting rods to approach each other, so that the block connecting rods push the baffle plate to slide into the end of the drop groove, and block other parts above from continuing to fall through the baffle plate. The movement of the baffle plate will pull the flip baffle plate to deflect around the connection point of the flip plate seat, so that the flip baffle plate will no longer block the parts in the drop groove end from falling after deflection. , so that the part falls and is aligned with the workpiece sleeve below. When the pressure plate moves downward to drive the pressure block to move, the pressure block applies pressure to the pressure block to control the interval below the part and improve the welding efficiency of the part. At the same time, as the pressure block continues to move downward, when the pressure block moves to the inclined arc surface of the bottom surface of the pressure block, the flip baffle deflects around the flip plate seat so that the rubber strip on the bottom side of the flip baffle presses the top surface of the part. At this time, the rubber strip is at the lowest point. After the welding of the part and the workpiece is completed, the pressure block moves upward, and the flip baffle deflects around the flip plate seat to make the rubber strip leave the lowest point.

[0007] The cam is provided with a plurality of support blocks, and the plurality of support blocks are divided into two groups and are respectively fixedly connected to each other on both sides of each conveyor belt. Each of the plurality of support blocks is fixedly connected to a fixing plate on a side of the fixing plate away from the conveyor belt. A displacement slot rod is slidably penetrated by the side surface of the fixing plate, and one end of the displacement slot rod away from the fixing plate is fixedly connected to the displacement clip on the bottom surface of the displacement clip. An inclined pressure plate is provided below the inclined pressure plate, and a pressure wheel fixing plate is fixedly connected to the bottom surface of the pressure wheel fixing plate. A vertical support block is fixedly connected to the bottom end of the vertical support block and an end of the pressure wheel fixing plate close to the inclined pressure plate are rotatably connected to a pressure wheel. The outer side of the vertical support block is slidably connected to a support block slide, and the support block slide is fixedly connected to the clamping seat block, a spring is provided on the inner side of the displacement slot rod, and two ends of the spring are respectively fixedly connected to the displacement slot rod and the fixing clip, and the pressure wheel on the bottom side of the vertical support block is in contact with the top surface of the moving guide rail. The pressure wheel at the end of the pressure wheel fixed plate is in contact with the bottom side of the inclined pressure plate. Before welding, the workpiece is placed between the fixed clamping plate and the displacement clamping plate, and each workpiece is installed between the fixed clamping plate and the displacement clamping plate by using a mechanical arm, so that the spring elastic force in the displacement slot rod makes the fixed clamping plate and the displacement clamping plate approach each other to clamp the parts. With the completion of the above-mentioned processing flow, the welded workpiece is driven by the conveyor belt to move the connected clamping seat block. At this time, the vertical support block connected to the support block slide seat slides in contact with the top surface of the moving guide rail through the pressure wheel. When the pressure wheel on the bottom side of the vertical support block moves to the top of the workpiece drop bucket, the pressure wheel on the bottom side of the vertical support block is pressed upward by the moving guide rail, allowing the vertical support block to slide along the support block slide seat and squeeze the inclined pressure plate through the pressure wheel connected to the pressure wheel fixed plate. The pressure on the inclined pressure plate will drive the connected displacement clamping plate away from the fixed clamping plate, and allow the displacement clamping plate to pull the spring inside the displacement slot rod to contract. At this time, the displacement clamping plate is away from the workpiece between the fixed clamping plates and falls into the workpiece drop bucket.

[0008] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0009] The present invention is provided with a mounting plate, a track ring, a ring track groove, a ring crown tooth, a ring shift block, a meshing toothed disc, a welding gun seat, an air supply pipe, a welding head, a guide disc, a side notch groove, and a ventilation connecting pipe, and adopts a motion structure coordinated with the ring shift block and the track ring to improve the flexibility of the movement of the welding head, and there is no need to frequently adjust the welding position of the workpiece, which plays a role in improving the welding efficiency. At the same time, the ring shift block is used to drive the welding head to weld around the connection of the workpiece, which can improve the integrity of the welding at the joint of the workpiece, improve the overall quality of the welded workpiece and the sealing effect at the weld.

[0010] The present invention is provided with a pressure block, a drop groove end, a release end, a pressured complex block, a complex block connecting rod, a baffle plate, a flip baffle plate, and a flip plate seat. When the pressure block is driven to move by the downward movement of the pressure plate, the pressure block applies pressure to the pressured complex block to control the interval below the parts, thereby improving the welding efficiency of the parts. At the same time, after the welding of the parts and the workpiece is completed, the pressure block moves upward, and the flip baffle plate deflects around the flip plate seat to make the rubber strip separate from the lowest point, so that the rubber strip is separated from the top surface of the parts, so that the rubber strip is pressed on the parts to prevent the parts from separating during the welding process, thereby improving the welding effect.

[0011] The present invention is provided with a clamping seat block, a fixing clamping piece, a displacement clamping piece, a displacement slot rod, an inclined pressure plate, a support block slide, a vertical support block, a pressure wheel fixing piece and a pressure wheel. While transmitting parts through a conveyor belt, the fixing clamping piece and the displacement clamping piece are used to clamp the workpiece and convey it along with the conveyor belt, thereby improving the processing efficiency of the parts. At the same time, through the cooperation of the pressure wheel connected to the vertical support block through the action guide rail, the welded workpiece is controlled to automatically fall off, which simplifies the structure and processing steps and improves the parts collection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the overall front three-dimensional structure of the present invention;

[0014] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the present invention;

[0015] Figure 3 It is a schematic diagram of the mechanism position distribution structure of the present invention;

[0016] Figure 4 The present invention Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0017] Figure 5 The present invention Figure 3 A schematic diagram of the enlarged structure of B;

[0018] Figure 6 It is a structural schematic diagram of the connection relationship of the mechanism of the present invention;

[0019] Figure 7 It is a structural schematic diagram of the blanking and splicing mechanism of the present invention;

[0020] Figure 8 It is a structural schematic diagram of the blanking mechanism of the present invention;

[0021] Fig. 9 It is a schematic diagram of the enlarged structure of C in 8 of the present invention;

[0022] Fig.10 It is a schematic diagram of the overall structure of the welding workpiece of the present invention;

[0023] In the figure: 1, support frame; 2, mounting plate; 3, conveyor belt; 4, top plate; 5, welding mechanism; 51, mounting plate; 52, track ring; 53, ring track groove; 54, ring crown tooth; 55, ring shift block; 56, meshing gear plate; 57, welding gun seat; 58, air supply pipe; 59, welding head; 510, guide plate; 511, side wedge groove; 512, ventilation connecting pipe; 6, material unloading splicing mechanism; 61, pressure block; 62, drop groove end; 63, drop end; 64, pressure recovery Block; 65, complex block connecting rod; 66, baffle plate; 67, flip baffle; 68, flip plate seat; 7, unloading mechanism; 71, clamping seat block; 72, fixed clamping piece; 73, displacement clamping piece; 74, displacement slot rod; 75, inclined pressure plate; 76, support block slide; 77, vertical support block; 78, pressure wheel fixed piece; 79, pressure wheel; 8, hydraulic cylinder; 9, lifting platform; 10, air supply end; 11, vertical rod; 12, pressure plate; 13, moving guide rail; 14, workpiece drop bucket. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-10The present invention provides a technical solution: a double-station welding device for automobile exhaust valves, comprising a support frame 1, both sides of the inner wall of the support frame 1 are fixedly connected with mounting plates 2, a conveyor belt 3 is installed on the top surface of each mounting plate 2, a top plate 4 is fixedly connected to the top of the support frame 1, a feeding mechanism 7 is installed above the conveyor belt 3, a welding mechanism 5 is arranged on the top of the feeding mechanism 7, a feeding and splicing mechanism 6 is arranged on the top of the welding mechanism 5, two hydraulic cylinders 8 are fixedly connected to the top surface of the top plate 4, a lifting platform 9 is fixedly connected to the bottom end of the hydraulic cylinder 8, an air supply end 10 is fixedly connected to the bottom end of the inner wall of the support frame 1, and the front and rear ends of the lifting platform 9 are fixedly connected to the bottom end of the inner wall of the support frame 1. The sides are provided with vertical rods 11, the outer wall of the hydraulic cylinder 8 is fixedly connected with a pressure plate 12, two moving guide rails 13 are provided between the two conveyor belts 3, and the moving guide rail 13 is fixedly connected with a workpiece drop bucket 14 on the side close to the lifting platform 9, and three vertical rods 11 are provided, and each vertical rod 11 is slidably connected to the lifting platform 9, and the two moving guide rails 13 are fixedly connected to the support frame 1, and the welding mechanism 5 includes a mounting plate 51, and the mounting plate 51 is provided at multiple locations, and the multiple mounting plates 51 are divided into two groups and are respectively fixedly connected to the left and right top surfaces of the lifting platform 9, and each mounting plate 51 is fixedly connected to a track on the side away from the lifting platform 9 The track ring 52 is provided with a ring track groove 53 on both the upper and lower sides of the track ring 52, a ring crown tooth 54 is fixedly connected to the top surface of the track ring 52, a ring shift block 55 is slidably connected to the outer side of the track ring 52, the top of the ring shift block 55 is rotatably connected to a meshing toothed disc 56, a guide disc 510 is fixedly connected to the middle position of the meshing toothed disc 56, and side grooves 511 are provided on both sides of the guide disc 510, a welding gun seat 57 is fixedly connected to the bottom surface of the ring shift block 55, a welding head 59 is fixedly connected to the inner side of the welding gun seat 57, a gas supply pipe 58 is fixedly connected to the side of the welding head 59 away from the track ring 52, and a ventilation connecting pipe 56 is rotatably connected to the bottom end of the gas supply pipe 58. 12. The ventilation connecting pipe 512 is fixedly connected to the air supply end 10, the meshing toothed disc 56 is meshed with the ring crown teeth 54 through the side groove 511, the ring track groove 53 is slidably connected to the ring shift block 55, and a penetration groove is provided on the side of the ring shift block 55. The motion structure of the ring shift block 55 and the track ring 52 is adopted to improve the flexibility of the movement of the welding head 59, and there is no need to frequently adjust the welding position of the workpiece, which plays a role in improving the welding efficiency. At the same time, the movement of the ring shift block 55 is used to drive the welding head 59 to weld around the joint of the workpiece, which can improve the integrity of the welding at the joint of the workpiece, improve the overall quality of the welded workpiece and the sealing effect of the weld.

[0026] The blanking splicing mechanism 6 includes a pressure block 61, which is provided at multiple locations, and the multiple pressure blocks 61 are divided into two groups and are respectively fixedly connected to the left and right edge side walls of the pressure plate 12, and two pressure blocks 64 are provided below each pressure block 61, and a block connecting rod 65 is fixedly connected to the side away from the pressure block 61 of each pressure block 64, and a stopper baffle 66 is fixedly connected to the end of the block connecting rod 65 away from the pressure block 64. A drop groove end 62 is provided between the plates 66, the top of the drop groove end 62 is fixedly connected with a placing end 63, one end of the stopper baffle 66 away from the drop groove end 62 is slidably connected with a flip baffle 67, the outer walls of the bottom ends of both sides of the drop groove end 62 are fixedly connected with a flip plate seat 68, the stopper baffle 66 is slidably connected with the drop groove end 62, the flip plate seat 68 is hingedly connected with the flip baffle 67, and the top and bottom surfaces of the pressure-bearing complex block 64 are both set as inclined arc surfaces. The bottom surface of the pressure block 61 is provided with an inclined surface, and the baffle plate 66 penetrates from the outer wall of the drop groove end 62 to the inside, and the bottom end of the flip baffle plate 67 is provided with a rubber strip. When the pressure block 61 is driven to move by the downward movement of the pressure plate 12, the pressure block 61 applies pressure to the pressure-bearing block 64 to control the interval below the parts and improve the welding efficiency of the parts. At the same time, as the pressure block 61 continues to move downward, when the pressure block 61 moves to the inclined arc surface of the bottom surface of the pressure-bearing block 64, the flip baffle plate 67 deflects around the flip plate seat 68 at this time so that the rubber strip on the bottom side of the flip baffle plate 67 presses the top surface of the parts. At this time, the rubber strip is at the lowest point. After the welding of the parts and the workpiece is completed, the pressure block 61 moves upward, and the flip baffle plate 67 deflects around the flip plate seat 68 to make the rubber strip separate from the lowest point, thereby allowing the rubber strip to break contact with the top surface of the parts, thereby using the rubber strip to apply pressure to the parts to prevent the parts from separating during welding and improving the welding effect.

[0027] The unloading mechanism 7 includes a clamping seat block 71, and a plurality of clamping seat blocks 71 are provided, and the plurality of clamping seat blocks 71 are divided into two groups and are respectively fixedly connected to the two sides of each conveyor belt 3, and each clamping seat block 71 is fixedly connected to a fixed clamping piece 72 on the side away from the conveyor belt 3, and a displacement groove rod 74 is slidably penetrated on the side of the fixed clamping piece 72, and the end of the displacement groove rod 74 away from the fixed clamping piece 72 is fixedly connected to a displacement clamping piece 73, and the bottom surface of the displacement clamping piece 73 is fixedly connected to an inclined pressure plate 75, and a pressure wheel fixing piece 78 is provided below the inclined pressure plate 75, and the bottom surface of the pressure wheel fixing piece 78 is fixedly connected to a vertical support block 77, and the bottom end of the vertical support block 77 and the end of the pressure wheel fixing piece 78 close to the inclined pressure plate 75 are both rotatably connected to a pressure wheel 79, and the outer side of the vertical support block 77 slides The movable connection is provided with a support block slide 76, which is fixedly connected to the clamping seat block 71. A spring is provided on the inner side of the displacement slot rod 74, and the two ends of the spring are respectively fixedly connected to the displacement slot rod 74 and the fixed clamping piece 72. The pressure wheel 79 on the bottom side of the vertical support block 77 fits with the top surface of the moving guide rail 13, and the pressure wheel 79 at the end of the pressure wheel fixed piece 78 fits with the bottom side of the inclined pressure plate 75. While the parts are transmitted through the conveyor belt 3, the fixed clamping piece 72 and the displacement clamping piece 73 are used to clamp the workpiece and convey it along with the conveyor belt 3, thereby improving the processing efficiency of the parts. At the same time, the pressure wheel 79 connected to the vertical support block 77 is coordinated through the moving guide rail 13 to control the automatic falling off of the welded workpiece, simplifying the structure and processing steps and improving the parts collection efficiency.

[0028] Working principle: The hydraulic cylinder 8 connected by the top plate 4 extends downward, so that the hydraulic cylinder 8 pushes the connected lifting platform 9 to move downward and drives the mounting plate 51 to move downward, so that the mounting plate 51 drives the connected track ring 52 to be sleeved on the workpiece to be welded. After the other parts on the workpiece are aligned, the meshing toothed disc 56 on the ring shift block 55 rotates, so that the side groove 511 on the meshing toothed disc 56 is meshed with the ring crown tooth 54 on the track ring 52, and the meshing toothed disc 56 is driven by the external motor to slide along the ring track groove 53 on the track ring 52, so that the track ring 52 drives the connected welding gun seat 57 to make a circular motion around the joint of the workpiece through the welding head 59. When the track ring 52 passes the mounting plate 51, the mounting plate 51 is passed through the side penetration groove through the track ring 52, so that the ring shift block 55 can move in a circular motion along the track ring 52 without restriction.

[0029] The parts in the placing end 63 will fall into the dropping groove end 62, and the parts at the bottom of the dropping groove end 62 will be restricted from moving downward by the flip baffle 67. When the hydraulic cylinder 8 extends downward, the hydraulic cylinder 8 will drive the connected pressure plate 12 to move downward together, so that the pressure block 61 connected to the pressure plate 12 moves downward and approaches the pressure-bearing block 64. When the pressure-bearing blocks 64 on both sides are squeezed by the pressure blocks 61 and approach each other, the pressure-bearing blocks 64 move and drive the connected block connecting rods 65 to approach each other, so that the block connecting rods 65 push the blocking baffle 66 to slide into the dropping groove end 62, and block other parts above from continuing to fall through the blocking baffle 66. The movement of the blocking baffle 66 will pull the flip baffle 67 to deflect around the connection with the flip plate seat 68, so that the flip baffle After the plate 67 is deflected, it no longer blocks the parts in the drop groove end 62 from falling, so that the parts fall and are aligned with the workpiece sleeve below. When the pressure plate 12 moves downward to drive the pressure block 61 to move, the pressure block 61 applies pressure to the pressure-bearing block 64 to control the interval below the parts, thereby improving the welding efficiency of the parts. At the same time, as the pressure block 61 continues to move downward, when the pressure block 61 moves to the inclined arc surface of the bottom surface of the pressure-bearing block 64, the flip baffle 67 deflects around the flip plate seat 68 at this time so that the rubber strip on the bottom side of the flip baffle 67 presses the top surface of the parts. At this time, the rubber strip is at the lowest point. After the welding of the parts and the workpiece is completed, the pressure block 61 moves upward, and the flip baffle 67 deflects around the flip plate seat 68 to make the rubber strip separate from the lowest point, thereby making the rubber strip separate from the top surface of the parts.

[0030] Before welding, the workpiece is placed between the fixed clamping piece 72 and the displacement clamping piece 73, and each workpiece is installed between the fixed clamping piece 72 and the displacement clamping piece 73 by using a mechanical arm, so that the spring force in the displacement slot rod 74 makes the fixed clamping piece 72 and the displacement clamping piece 73 approach each other to clamp the parts. With the completion of the above-mentioned processing flow, the welded workpiece is driven by the conveyor belt 3 to move the connected clamping seat block 71. At this time, the vertical support block 77 connected to the support block slide 76 slides against the top surface of the action guide rail 13 through the pressure wheel 79. When the bottom side of the vertical support block 77 When the pressure wheel 79 moves to the top of the workpiece drop bucket 14, the pressure wheel 79 on the bottom side of the vertical support block 77 is pressed by the moving guide rail 13 and moves upward, allowing the vertical support block 77 to slide along the support block slide 76 and squeeze the inclined pressure plate 75 through the pressure wheel 79 connected to the pressure wheel fixing plate 78. The pressure on the inclined pressure plate 75 will drive the connected displacement clip 73 away from the fixing clip 72, and allow the displacement clip 73 to pull the spring on the inside of the displacement slot rod 74 to contract. At this time, the displacement clip 73 moves away from the workpiece between the fixing clips 72 and falls into the workpiece drop bucket 14.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dual-station welding device for automobile exhaust valves, comprising a support frame (1), characterized in that: Both sides of the inner wall of the support frame (1) are fixedly connected with mounting plates (2), and a conveyor belt (3) is installed on the top surface of each mounting plate (2). The top of the support frame (1) is fixedly connected with a top plate (4), and a feeding mechanism (7) is installed above the conveyor belt (3). The top of the feeding mechanism (7) is provided with a welding mechanism (5), and the top of the welding mechanism (5) is provided with a feeding and splicing mechanism (6). The top surface of the top plate (4) is fixedly connected with two hydraulic cylinders (8), and the bottom end of the hydraulic cylinder (8) is fixedly connected with a lifting platform (9). The bottom end of the inner wall of the support frame (1) is fixedly connected with an air supply end (10), and vertical rods (11) are provided on both sides of the front and rear of the lifting platform (9). The outer wall of the hydraulic cylinder (8) is fixedly connected with a pressure plate (12), and two moving guide rails (13) are provided between the two conveyor belts (3). The side of the moving guide rail (13) close to the lifting platform (9) is fixedly connected with a workpiece drop bucket (14); The vertical rod (11) is provided at three locations, and each vertical rod (11) is slidably connected to the lifting platform (9), and the two movable guide rails (13) are fixedly connected to the support frame (1); The welding mechanism (5) comprises a mounting plate (51), wherein the mounting plate (51) is provided at a plurality of locations, and the plurality of mounting plates (51) are divided into two groups and are respectively fixedly connected to the left and right top surfaces of the lifting platform (9), wherein a track ring (52) is fixedly connected to one side of each mounting plate (51) away from the lifting platform (9), wherein the track ring (52) is provided with a ring track groove (53) on both the upper and lower sides, wherein the top surface of the track ring (52) is fixedly connected with a ring crown tooth (54), and the outer side of the track ring (52) is slidably connected with a ring shift block (55), and the ring shift block (55) is provided with a ring gear (54) on the outer side of the track ring (52). The top of the block (55) is rotatably connected to a meshing toothed disc (56), the middle position of the meshing toothed disc (56) is fixedly connected to a guide disc (510), both sides of the guide disc (510) are provided with side notches (511), the bottom surface of the ring shift block (55) is fixedly connected to a welding gun seat (57), the inner side of the welding gun seat (57) is fixedly connected to a welding head (59), the side of the welding head (59) away from the track ring (52) is fixedly connected to an air supply pipe (58), and the bottom end of the air supply pipe (58) is rotatably connected to a ventilation connecting pipe (512); The ventilation connecting pipe (512) is fixedly connected to the air supply end (10), the meshing toothed disc (56) is meshedly connected to the ring crown teeth (54) via the side groove (511), the ring track groove (53) is slidably connected to the ring shift block (55), and a penetration groove is provided on the side surface of the ring shift block (55); The blanking and splicing mechanism (6) comprises a pressure block (61), wherein the pressure blocks (61) are arranged in a plurality of locations, and the plurality of pressure blocks (61) are divided into two groups and respectively fixedly connected to the left and right edge side walls of the pressure plate (12), and two pressure-bearing blocks (64) are arranged below each of the pressure blocks (61), and a block connecting rod (65) is fixedly connected to a side of each of the pressure-bearing blocks (64) away from the pressure block (61), and a blocking member baffle (66) is fixedly connected to one end of the block connecting rod (65) away from the pressure-bearing block (64), and a drop groove end (62) is arranged between the two blocking member baffles (66), and a placing end (63) is fixedly connected to the top of the drop groove end (62), and a flip baffle (67) is slidably connected to one end of the blocking member baffle (66) away from the drop groove end (62), and a flip plate seat (68) is fixedly connected to the outer walls of the bottom ends of both sides of the drop groove end (62).

2. The dual-station welding device for automobile exhaust valve according to claim 1 is characterized in that: The blocking member baffle (66) is slidably connected to the end of the falling member slot (62), the flap seat (68) is hingedly connected to the flip baffle (67), the top surface and the bottom surface of the pressure-bearing block (64) are both arranged as inclined arc surfaces, the bottom surface of the pressure-applying block (61) is arranged with an inclined surface, the blocking member baffle (66) penetrates from the outer wall of the end of the falling member slot (62) to the inside, and the bottom end of the flip baffle (67) is arranged with a rubber strip.

3. The dual-station welding device for automobile exhaust valve according to claim 2 is characterized in that: The unloading mechanism (7) comprises a clamping seat block (71), a plurality of the clamping seat blocks (71) are provided, and the plurality of clamping seat blocks (71) are divided into two groups and are respectively fixedly connected to the two sides of each conveyor belt (3), a side of each clamping seat block (71) away from the conveyor belt (3) is fixedly connected to a fixed clamping piece (72), a side of the fixed clamping piece (72) is slidably penetrated by a displacement slot rod (74), an end of the displacement slot rod (74) away from the fixed clamping piece (72) is fixedly connected to a displacement clamping piece (73), and the The bottom surface of the displacement clamp (73) is fixedly connected to an inclined pressure plate (75), a pressure wheel fixing plate (78) is arranged below the inclined pressure plate (75), the bottom surface of the pressure wheel fixing plate (78) is fixedly connected to a vertical support block (77), the bottom end of the vertical support block (77) and one end of the pressure wheel fixing plate (78) close to the inclined pressure plate (75) are both rotatably connected to a pressure wheel (79), the outer side of the vertical support block (77) is slidably connected to a support block slide (76), and the support block slide (76) is fixedly connected to the clamping seat block (71).

4. The dual-station welding device for automobile exhaust valve according to claim 3 is characterized in that: A spring is provided on the inner side of the displacement slot rod (74), and the two ends of the spring are respectively fixedly connected to the displacement slot rod (74) and the fixing clamp (72); the pressure wheel (79) on the bottom side of the vertical support block (77) is in contact with the top surface of the moving guide rail (13); and the pressure wheel (79) at the end of the pressure wheel fixing plate (78) is in contact with the bottom side of the inclined pressure plate (75).

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