A stainless steel plate welding device with smooth weld

Abstract

The present invention belongs to the technical field of steel plate welding, and specifically is a stainless steel plate welding device with smooth welds, comprising a workbench; a connecting frame and a slide rail are fixedly connected to the top surface of the workbench, a welding mechanism is arranged on the connecting frame, a slider is slidably connected in the slide rail, and a placement plate is fixedly connected to the top surface of the slider; the slide plate is driven to move downward by a driving mechanism, at which time the circular hole will suction air, thereby sucking impurities in the gap into the hollow groove, and then falling onto the slide plate, and after waiting for the impurities to sink to the bottom of the slide plate, a pair of stainless steel plates are aligned, and then the stainless steel plates are welded using the welding head on the welding mechanism, and during welding, a motor is required to drive the lead screw to rotate, so that the slider drives the placement plate to move, and the welding of the stainless steel plates is completed during the movement, and the above-mentioned mechanism can be used to clean the stainless steel plates to be welded in advance, so as to ensure the smoothness of the welds during subsequent welding.

Description

Technical Field

[0001] The invention belongs to the technical field of steel plate welding, in particular to a stainless steel plate welding device with smooth welds. Background Art

[0002] Stainless steel plate welding device is a mechanical device specially used for welding stainless steel plates. It ensures the high efficiency and stability of the welding process through advanced technology and precise control system. This device usually has multiple welding modes, which can adapt to stainless steel plates of different thicknesses and sizes and meet the needs of various industrial applications. Stainless steel plate welding devices usually use advanced welding technologies such as argon arc welding, laser welding or plasma welding to ensure the strength and beauty of the welding seam.

[0003] However, the above technology often has the following defects: in the process of welding stainless steel plates, the two stainless steel plates must be accurately butted together, and then the joints of the plates are welded. If there are impurities in the joint area, the weld surface will be uneven and discontinuous, which will adversely affect the welding quality of the stainless steel plates. Therefore, the present invention provides a stainless steel plate welding device with a smooth weld. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: a stainless steel plate welding device with smooth weld seams described in the present invention comprises a workbench; a connecting frame and a slide rail are fixedly connected to the top surface of the workbench, a welding mechanism is arranged on the connecting frame, a slider is slidably connected in the slide rail, a placement plate is fixedly connected to the top surface of the slider, a lead screw is rotatably connected in the slide rail, the lead screw is threadedly connected to the slider, and a motor for driving the lead screw to rotate is arranged on one side of the slide rail;

[0006] A hollow groove is provided in the placement plate, a slide plate is sealingly and slidably connected to the inner wall of the hollow groove, an exhaust hole connected to the hollow groove is provided on the bottom surface of the placement plate, a group of circular holes connected to the hollow groove is provided on the top surface of the placement plate, and a driving mechanism for driving the slide plate to move is provided in the slide rail;

[0007] Preferably, the welding mechanism comprises a pair of hydraulic rods fixedly connected to the connecting frame, the output ends of the hydraulic rods are fixedly connected to a mounting plate, and the mounting plate is provided with a welding head for welding the stainless steel plate.

[0008] Preferably, the driving mechanism includes a pair of first magnetic blocks fixedly connected to the bottom surface of the slide, a group of evenly distributed second magnetic blocks are fixedly connected to the bottom surface of the slide rail, the first magnetic blocks and the second magnetic blocks are arranged to attract each other, a discharge groove is provided on one side of the placement plate, the top surface of the slide is inclined, and the lowest point of the inclination of the top surface of the slide is close to the discharge groove, and a first spring is fixedly connected between the bottom surface of the slide and the inner wall of the hollow groove.

[0009] Preferably, a sealing plate for sealing the circular hole is twisted on the top surface of the inner wall of the hollow groove through a torsion spring, and an exhaust hole is provided on a side of the sliding block close to the motor.

[0010] Preferably, a hollow recovery box is installed on one side of the placement plate close to the discharge trough by means of screws, and a feed trough aligned with the discharge trough is provided on one side of the recovery box close to the placement plate.

[0011] Preferably, a rectangular groove is provided on the inner wall of the hollow groove near the discharge groove, the bottom surface of the discharge groove is sealingly and slidably connected with a baffle extending into the rectangular groove, the baffle is connected to a round rod on the track near the slide, and a second spring is connected to the track between the bottom surface of the baffle and the rectangular groove.

[0012] Preferably, a pressure plate is slidably connected to the inner wall of the recovery box, the pressure plate is made of magnetic material, the second magnetic block is magnetically attracted to the pressure plate, and a third spring is fixedly connected between the top surface of the pressure plate and the inner wall of the recovery box.

[0013] Preferably, a hollow elastic block is fixedly connected to a side of the placement plate away from the recovery box, and a group of communicating air outlet holes is opened between the elastic block and the placement plate.

[0014] Preferably, a plurality of connecting grooves are provided on the top surface of the placement plate, a cylinder is fixedly connected to the bottom surface of the inner wall of the connecting groove, a sliding rod is sealingly and slidably connected inside the cylinder, a hollow semicircular block is fixedly connected to the top surface of the sliding rod, a ball is movably connected inside the semicircular block, and a moving mechanism for driving the sliding rod to move is provided inside the cylinder.

[0015] Preferably, the moving mechanism includes a through groove opened in the placement plate, the through groove extends to the side wall of the placement plate, a connecting pipe connected to the through groove and the cylinder is fixedly connected in the placement plate, a fourth spring is fixedly connected between the bottom surface of the sliding rod and the inner wall of the cylinder, and a control valve is fixedly connected in the through groove.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present application drives the slide plate to move downward through a driving mechanism. At this time, the circular hole will inhale air, thereby sucking impurities in the gap into the hollow groove, and then falling onto the slide plate. After waiting for the impurities to sink to the bottom of the slide plate, a pair of stainless steel plates are aligned, and then the stainless steel plates are welded using the welding head on the welding mechanism. During welding, a motor is required to drive the screw rod to rotate, so that the slider drives the placement plate to move, and the welding of the stainless steel plates is completed during the movement. The above-mentioned mechanism can be used to clean the stainless steel plates to be welded in advance to ensure the smoothness of the weld during the subsequent welding process.

[0018] 2. In the present application, when the slide plate needs to move downward, the slider can be driven to move by the screw rod, and the slider will drive the placement plate to move, so that the first magnetic block moves to a position aligned with the second magnetic block. At this time, the second magnetic block will attract the first magnetic block, so that the slide plate moves downward, causing the circular hole to inhale air, thereby sucking impurities into the hollow groove. At the same time, the inclined surface of the slide plate will move to the discharge trough. When there are many impurities on the slide plate, the impurities will slide along the inclined surface of the slide plate to the discharge trough for discharge, so as to prevent impurities on the slide plate. When the slide plate moves upward, the impurities will be discharged from the circular hole with the air flow and fall into the gap of the stainless steel plate again. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a three-dimensional diagram of a welding device in the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the placement plate and the slide rail in the present invention;

[0022] Figure 3 yes Figure 2 A magnified image of point A;

[0023] Figure 4 yes Figure 2 The enlarged view of point B;

[0024] Figure 5 It is a partial structural cross-sectional view of the placement plate in the present invention;

[0025] Figure 6 yes Figure 5 Enlarged view of point C.

[0026] In the figure: 1. workbench; 2. slide rail; 3. slider; 4. connecting frame; 5. hydraulic rod; 6. mounting plate; 7. welding head; 8. placement plate; 9. screw rod; 10. hollow groove; 11. round hole; 12. slide plate; 13. first magnetic block; 14. second magnetic block; 15. sealing plate; 16. recovery box; 17. discharge trough; 18. pressure plate; 19. rectangular groove; 20. baffle; 21. round rod; 22. elastic block; 23. air outlet; 24. connecting groove; 25. cylinder; 26. slide rod; 27. semicircular block; 28. round ball; 29. ​​connecting pipe; 30. through groove. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] Embodiment 1: Figures 1 to 5 As shown, a stainless steel plate welding device with smooth weld seams according to an embodiment of the present invention comprises a workbench 1; a connecting frame 4 and a slide rail 2 are fixedly connected to the top surface of the workbench 1, a welding mechanism is arranged on the connecting frame 4, a slider 3 is slidably connected in the slide rail 2, a placement plate 8 is fixedly connected to the top surface of the slider 3, a screw rod 9 is rotatably connected in the slide rail 2, the screw rod 9 is threadedly connected to the slider 3, and a motor for driving the screw rod 9 to rotate is arranged on one side of the slide rail 2;

[0029] A hollow groove 10 is provided in the placement plate 8, and a slide plate 12 is sealingly and slidably connected to the inner wall of the hollow groove 10. An exhaust hole connected to the hollow groove 10 is provided on the bottom surface of the placement plate 8, and a group of circular holes 11 connected to the hollow groove 10 are provided on the top surface of the placement plate 8. A driving mechanism for driving the slide plate 12 to move is provided in the slide rail 2;

[0030] The welding mechanism comprises a pair of hydraulic rods 5 fixedly connected to the connecting frame 4, the output end of the hydraulic rods 5 is fixedly connected to a mounting plate 6, and the mounting plate 6 is provided with a welding head 7 for welding the stainless steel plate;

[0031] When welding stainless steel plates, the present application first places a pair of stainless steel plates on the placement plate 8. At this time, a gap is left between the sides of the stainless steel plates that are close to each other, and the gap is located above the circular hole 11. Then, the slide plate 12 is driven downward by the driving mechanism. At this time, the circular hole 11 will inhale, thereby sucking impurities in the gap into the hollow groove 10, and then falling onto the slide plate 12. After waiting for the impurities to sink to the bottom of the slide plate 12, the pair of stainless steel plates are aligned, and then the welding head 7 on the welding mechanism is used to weld the stainless steel plates. During welding, the motor needs to drive the screw rod 9 to rotate, so that the slider 3 drives the placement plate 8 to move, and the welding of the stainless steel plates is completed during the movement. The above-mentioned mechanism can be used to clean the stainless steel plates to be welded in advance to ensure the smoothness of the weld in the subsequent welding process.

[0032] The driving mechanism includes a pair of first magnetic blocks 13 fixedly connected to the bottom surface of the slide plate 12, a group of uniformly distributed second magnetic blocks 14 are fixedly connected to the bottom surface of the slide rail 2, the first magnetic blocks 13 and the second magnetic blocks 14 are arranged to attract each other, a discharge groove 17 is opened on one side of the placement plate 8, the top surface of the slide plate 12 is inclined, and the lowest point of the inclination of the top surface of the slide plate 12 is close to the discharge groove 17, and a first spring is fixedly connected between the bottom surface of the slide plate 12 and the inner wall of the hollow groove 10;

[0033] When the slide plate 12 needs to move downward, the slider 3 can be driven to move by the screw rod 9. At this time, the slider 3 will drive the placement plate 8 to move, so that the first magnetic block 13 moves to a position aligned with the second magnetic block 14. At this time, the second magnetic block 14 will attract the first magnetic block 13, so that the slide plate 12 moves downward, so that the circular hole 11 inhales air, thereby sucking impurities into the hollow groove 10. At the same time, the inclined surface of the slide plate 12 will move to the discharge trough 17. When there are many impurities on the slide plate 12, the impurities will slide along the inclined surface of the slide plate 12 to the discharge trough 17 for discharge, so as to prevent impurities on the slide plate 12. When the slide plate 12 moves upward, the impurities will be discharged from the circular hole 11 with the air flow and fall into the gap of the stainless steel plate again.

[0034] The top surface of the inner wall of the hollow groove 10 is twisted with a sealing plate 15 that seals the circular hole 11 through a torsion spring, and an exhaust hole is opened on the side of the slider 3 close to the motor; when the slide plate 12 moves downward, the present application will inhale air, and the inner diameter of the air inlet hole is set to be small. At this time, the air inlet hole cannot inhale air in time, allowing the slide plate 12 to move downward. At this time, the sealing plate 15 will be sucked, so that the circular hole 11 can inhale air normally, and impurities in the gap of the stainless steel plate are sucked away. Then, when the slide plate 12 no longer moves downward, the torsion spring will drive the sealing plate 15 to seal the circular hole 11, and then when the slide plate 12 is reset upward, the gas above the slide plate 12 will slowly be discharged from the exhaust hole.

[0035] A hollow recovery box 16 is installed on one side of the placement plate 8 close to the discharge trough 17 by screws, and a feed trough aligned with the discharge trough 17 is provided on one side of the recovery box 16 close to the placement plate 8; when the impurities in the present application slide from the slide plate 12 to the discharge trough 17, the impurities will enter the recovery box 16 along the feed trough and be stored, so as to prevent the impurities from being discharged onto the workbench 1 and the track, affecting the use of the workbench 1 and the track.

[0036] A rectangular groove 19 is provided on the inner wall of the hollow groove 10 on one side close to the discharge groove 17, and a baffle 20 extending into the rectangular groove 19 is sealingly and slidably connected to the bottom surface of the discharge groove 17, and a round rod 21 is connected to the track of the baffle 20 on one side close to the slide plate 12, and a second spring is connected to the track between the bottom surface of the baffle 20 and the rectangular groove 19; when the slide plate 12 moves downward, it will push the round rod 21, and at this time the round rod 21 will drive the baffle 20 to move downward, so that the baffle 20 no longer seals the discharge groove 17, and impurities can be discharged from the discharge groove 17 normally. Then, when the slide plate 12 is reset, the second spring will push the baffle 20 to seal the discharge groove 17 to prevent the airflow from driving the impurities in the recovery box 16 into the hollow groove 10 when the slide plate 12 moves upward.

[0037] The inner wall of the recovery box 16 is slidably connected with a pressure plate 18, and the pressure plate 18 is made of magnetic material. The second magnetic block 14 is magnetically attracted to the pressure plate 18, and a third spring is fixedly connected between the top surface of the pressure plate 18 and the inner wall of the recovery box 16; when the placement plate 8 in the present application is moved, the recovery box 16 will pass by the second magnetic block 14, and at this time the second magnetic block 14 will attract the pressure plate 18, so that the pressure plate 18 will compact the impurities in the recovery box 16, thereby increasing the capacity of the recovery box 16 to store impurities.

[0038] A hollow elastic block 22 is fixedly connected to the side of the placement plate 8 away from the recovery box 16, and a group of connected air outlet holes 23 are opened between the elastic block 22 and the placement plate 8; the present application can control the placement plate 8 to move toward the side close to the elastic block 22 through the slider 3, and then when the elastic block 22 contacts the inner wall of the slide rail 2, the positions of the first magnetic block 13 and the second magnetic block 14 correspond, and the slide plate 12 will move downward at this time, so that the position of the air outlet hole 23 is aligned with the top surface of the slide plate 12, and then the slider 3 continues to drive the placement plate 8 to move, so that the inner wall of the slide rail 2 squeezes the elastic block 22, and at this time, the gas in the elastic block 22 will be blown from the air outlet hole 23 to the top surface of the slide plate 12, so that the impurities on the top surface of the slide plate 12 can be blown into the discharge trough 17, and finally recovered by the recovery box 16, thereby improving the effect of recovering impurities on the slide plate 12.

[0039] Embodiment 2: Figure 6As shown, compared with Example 1, another implementation of the present invention is: a plurality of groups of connecting grooves 24 are provided on the top surface of the placement plate 8, and a cylinder 25 is fixedly connected to the bottom surface of the inner wall of the connecting groove 24, and a sliding rod 26 is sealed and slidably connected inside the cylinder 25, and a hollow semicircular block 27 is fixedly connected to the top surface of the sliding rod 26, and a ball 28 is movably connected inside the semicircular block 27, and a moving mechanism for driving the sliding rod 26 to move is arranged in the cylinder 25; when the stainless steel plate is placed on the placement table, the application will contact the ball 28, and when the stainless steel plate moves on the placement table, the ball 28 will assist the movement of the stainless steel plate, thereby greatly improving the convenience of moving the stainless steel plate, and when the stainless steel plate is welded, the sliding rod 26 is moved downward by the moving mechanism, and the ball 28 will be received into the connecting groove 24 to prevent the stainless steel plate from shaking when the placement table moves.

[0040] The moving mechanism includes a through groove 30 opened in the placement plate 8, and the through groove 30 extends to the side wall of the placement plate 8. A connecting pipe 29 connected to the through groove 30 and the cylinder 25 is fixedly connected in the placement plate 8. A fourth spring is fixedly connected between the bottom surface of the slide rod 26 and the inner wall of the cylinder 25. A control valve is fixedly connected in the through groove 30. When the ball 28 needs to be retracted into the connecting groove 24, the control valve can be opened. At this time, the ball 28 will be retracted into the connecting groove 24 under the pressure of the stainless steel plate. When the stainless steel plate is removed from the placement table, the fourth spring will push the slide rod 26 to reset the ball 28, and then close the control valve, so that the cylinder 25 and the connecting groove 24 are in a closed state. At this time, even if the ball 28 is under pressure, the slide rod 26 will not move.

[0041] Working principle: When welding stainless steel plates, the present application first places a pair of stainless steel plates on the placement plate 8. At this time, a gap is left between the sides of the stainless steel plates that are close to each other, and the gap is located above the circular hole 11. Then, the driving mechanism drives the slide plate 12 to move downward. At this time, the circular hole 11 will inhale air, thereby sucking impurities in the gap into the hollow groove 10, and then falling onto the slide plate 12. After waiting for the impurities to sink to the bottom of the slide plate 12, the pair of stainless steel plates are aligned, and then the welding head 7 on the welding mechanism is used to weld the stainless steel plates. During welding, the motor needs to drive the screw rod 9 to rotate, so that the slider 3 drives the placement plate 8 to move, and the welding of the stainless steel plates is completed during the movement. The above-mentioned mechanism can be used to clean the stainless steel plates to be welded in advance. The invention relates to a method for ensuring the smoothness of the weld in the subsequent welding process; when the slide plate 12 needs to move downward, the slider 3 can be driven to move by the screw rod 9, and the slider 3 will drive the placement plate 8 to move, so that the first magnetic block 13 moves to a position aligned with the second magnetic block 14, and the second magnetic block 14 will attract the first magnetic block 13, so that the slide plate 12 moves downward, so that the circular hole 11 inhales air, thereby sucking impurities into the hollow groove 10, and at the same time, the inclined surface of the slide plate 12 moves to the discharge trough 17, and when there are many impurities on the slide plate 12, the impurities will slide along the inclined surface of the slide plate 12 to the discharge trough 17 for discharge, so as to prevent impurities from being on the slide plate 12. When the slide plate 12 moves upward, the impurities will be discharged from the circular hole 11 with the air flow and fall into the gap of the stainless steel plate again;

[0042] When the slide plate 12 moves downward, the present application will inhale air, and the inner diameter of the air inlet hole is set to be small. At this time, the air inlet hole cannot inhale air in time, allowing the slide plate 12 to move downward. At this time, the sealing plate 15 will be sucked, so that the circular hole 11 can inhale air normally, and the impurities in the gap of the stainless steel plate will be sucked away. Then, when the slide plate 12 no longer moves downward, the torsion spring will drive the sealing plate 15 to seal the circular hole 11, and then when the slide plate 12 is reset upward, the gas above the slide plate 12 will slowly be discharged from the exhaust hole; when the impurities in the present application slide from the slide plate 12 to the discharge trough 17, the impurities will enter the recovery box 16 along the feed trough and be stored, so as to prevent the impurities from being discharged onto the workbench 1 and the track, affecting the use of the workbench 1 and the track;

[0043] When the slide plate 12 moves downward, it will push the round rod 21, and the round rod 21 will drive the baffle 20 to move downward, so that the baffle 20 no longer seals the discharge chute 17, and the impurities can be discharged from the discharge chute 17 normally. Then, when the slide plate 12 is reset, the second spring will push the baffle 20 to seal the discharge chute 17 to prevent the airflow from driving the impurities in the recovery box 16 into the hollow groove 10 when the slide plate 12 moves upward; when the placement plate 8 in the present application is moving, the recovery box 16 will pass the second magnetic block 14, and the second magnetic block 14 will attract the pressure plate 18, so that the pressure plate 18 will compact the impurities in the recovery box 16, thereby improving the storage of impurities in the recovery box 16 Storage capacity; the present application can control the placement plate 8 to move to the side close to the elastic block 22 through the slider 3, and then when the elastic block 22 contacts the inner wall of the slide rail 2, the positions of the first magnetic block 13 and the second magnetic block 14 correspond, and the slide plate 12 will move downward, so that the position of the air outlet 23 is aligned with the top surface of the slide plate 12, and then the slider 3 continues to drive the placement plate 8 to move, so that the inner wall of the slide rail 2 squeezes the elastic block 22, and at this time, the gas in the elastic block 22 will be blown from the air outlet 23 to the top surface of the slide plate 12, so that the impurities on the top surface of the slide plate 12 can be blown into the discharge trough 17, and finally recovered by the recovery box 16, thereby improving the effect of recovering impurities on the slide plate 12.

[0044] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A stainless steel plate welding device with smooth welds, comprising a workbench (1); characterized in that: The top surface of the workbench (1) is fixedly connected to a connecting frame (4) and a slide rail (2); a welding mechanism is provided on the connecting frame (4); a slider (3) is slidably connected inside the slide rail (2); a placement plate (8) is fixedly connected to the top surface of the slider (3); a screw rod (9) is rotatably connected inside the slide rail (2); the screw rod (9) is threadedly connected to the slider (3); and a motor for driving the screw rod (9) to rotate is provided on one side of the slide rail (2); The placement plate (8) has a hollow groove (10) formed therein, the inner wall of the hollow groove (10) is sealed and slidably connected with a slide plate (12), the bottom surface of the placement plate (8) has an exhaust hole connected to the hollow groove (10), the top surface of the placement plate (8) has a group of circular holes (11) connected to the hollow groove (10), and the slide rail (2) is provided with a driving mechanism for driving the slide plate (12) to move; The driving mechanism comprises a pair of first magnetic blocks (13) fixedly connected to the bottom surface of the slide plate (12); a group of evenly distributed second magnetic blocks (14) are fixedly connected to the bottom surface of the slide rail (2); the first magnetic blocks (13) and the second magnetic blocks (14) are arranged to attract each other; a discharge groove (17) is provided on one side of the placement plate (8); the top surface of the slide plate (12) is in the shape of an inclined surface, and the lowest point of the inclination of the top surface of the slide plate (12) is close to the discharge groove (17); and a first spring is fixedly connected between the bottom surface of the slide plate (12) and the inner wall of the hollow groove (10); The welding mechanism comprises a pair of hydraulic rods (5) fixedly connected to a connecting frame (4); output ends of the hydraulic rods (5) are fixedly connected to a mounting plate (6); and a welding head (7) for welding the stainless steel plate is provided on the mounting plate (6).

2. A stainless steel plate welding device with smooth welds according to claim 1, characterized in that: The top surface of the inner wall of the hollow groove (10) is twisted with a sealing plate (15) for sealing the circular hole (11) via a torsion spring, and an exhaust hole is provided on a side of the slider (3) close to the motor.

3. A stainless steel plate welding device with smooth welds according to claim 1, characterized in that: A hollow recovery box (16) is mounted on one side of the placement plate (8) close to the discharge trough (17) by means of screws, and a feed trough aligned with the discharge trough (17) is provided on one side of the recovery box (16) close to the placement plate (8).

4. A stainless steel plate welding device with smooth welds according to claim 3, characterized in that: A rectangular groove (19) is formed on the inner wall of the hollow groove (10) on a side close to the discharge groove (17); a baffle (20) extending into the rectangular groove (19) is sealingly and slidably connected to the bottom surface of the discharge groove (17); a round rod (21) is track-connected to the side of the baffle (20) close to the slide plate (12); and a second spring is track-connected between the bottom surface of the baffle (20) and the rectangular groove (19).

5. A stainless steel plate welding device with smooth welds according to claim 4, characterized in that: The inner wall of the recovery box (16) is slidably connected to a pressure plate (18), the pressure plate (18) is made of a magnetic material, the second magnetic block (14) is magnetically attracted to the pressure plate (18), and a third spring is fixedly connected between the top surface of the pressure plate (18) and the inner wall of the recovery box (16).

6. The stainless steel plate welding device with smooth weld seam according to claim 3, characterized in that: A hollow elastic block (22) is fixedly connected to the side of the placement plate (8) away from the recovery box (16), and a group of communicating air outlet holes (23) are provided between the elastic block (22) and the placement plate (8).

7. The stainless steel plate welding device with smooth weld seam according to claim 1, characterized in that: The top surface of the placement plate (8) is provided with a plurality of connection grooves (24), the bottom surface of the inner wall of the connection groove (24) is fixedly connected to a cylinder (25), a sliding rod (26) is sealingly and slidably connected inside the cylinder (25), a hollow semicircular block (27) is fixedly connected to the top surface of the sliding rod (26), a ball (28) is movably connected inside the semicircular block (27), and a moving mechanism for driving the sliding rod (26) to move is provided inside the cylinder (25).

8. The stainless steel plate welding device with smooth weld seam according to claim 7, characterized in that: The moving mechanism comprises a through groove (30) formed in the placement plate (8), the through groove (30) extending to the side wall of the placement plate (8), a connecting pipe (29) in communication with the through groove (30) and the cylinder (25) being fixedly connected in the placement plate (8), a fourth spring being fixedly connected between the bottom surface of the sliding rod (26) and the inner wall of the cylinder (25), and a control valve being fixedly connected in the through groove (30).

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