Floating row welding machine and welding method

Abstract

The present invention discloses a floating row welding machine and a welding method, which relate to the technical field of floating row welding, and include a base, wherein the base is provided with a longitudinally extending loading rack, and the loading rack is slidably connected with a discharge plate, and the discharge plate is used to place the floating row to be welded, a clamping mechanism, and the clamping mechanism is arranged on the discharge plate, and the clamping mechanism includes a pressure plate arranged on the discharge plate, and the pressure plate is used to clamp and align the floating row to be welded, and a clamping mechanism, and the clamping mechanism is arranged in the discharge plate, and the clamping mechanism includes a pressure plate located in the discharge plate and slidably connected to the discharge plate, and the pressure plate is used to pressurize the floating row in welding; the present invention can effectively improve the efficiency and quality of welding floating rows.

Description

Technical Field

[0001] The invention relates to the technical field of floating row welding, and in particular to a floating row welding machine and a welding method. Background Art

[0002] Floating row welding machine, also known as high-frequency heat sealing machine, high-frequency welding machine, etc., is mainly used for heating plastics. The equipment uses a high-frequency electric field to make the internal molecules of the plastic oscillate, thereby generating heat energy to heat various types of floating rows. Specifically, it welds plastic parts through a temperature-controlled heating mold. After the heating mold contacts the floating row, the edge of the floating row is melted and pressurized for welding, thereby producing the floating row.

[0003] At present, when carrying out floating row welding production, workers often lay the floating row flat on the workbench. The laid floating row is prone to unevenness, and it takes time to adjust the flatness of the floating row, which not only increases the burden on the workers, but also reduces the efficiency of production. At the same time, when welding the floating row, the wrinkled floating row not only affects the aesthetics of the welding, but also easily leads to poor air tightness of the welding. In addition, during the welding process, after the floating row is heated and melted, no pressure is applied again, which easily causes bubbles to exist in the welding place of the floating row, resulting in problems such as loose welding and poor air tightness.

[0004] Therefore, a floating row welding machine and a welding method are invented to solve the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a floating row welding machine and a welding method, which can effectively solve the technical problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is: a floating row welding machine, comprising a base, a longitudinally extending loading rack is provided on the base, a material discharge plate is slidably connected to the loading rack, and the material discharge plate is used to place the floating row to be welded;

[0007] A clamping mechanism, wherein the clamping mechanism is arranged on a material placing plate, and the clamping mechanism comprises a material holding plate arranged on the material placing plate, and the material holding plate is used for clamping and aligning the floating row to be welded;

[0008] A clamping mechanism is arranged in the discharge plate, and the clamping mechanism includes a pressure plate located in the discharge plate and slidably connected to the discharge plate, and the pressure plate is used to pressurize the floating row during welding.

[0009] Preferably, there are at least two pressing plates, which are respectively used to clamp the corners of the floating row. The clamping mechanism also includes a plurality of discs corresponding to the pressing plates and rotatably connected to the discharge plates. An arc groove is provided on each of the discs. The discharge plates are slidably connected with a plurality of guide rods corresponding to the arc grooves. One end of each guide rod is inserted into its corresponding arc groove, and the other end of each guide rod extends out of the discharge plate and is fixedly connected to the corresponding pressing plate.

[0010] Preferably, the distance between the arc groove and the center of the disc gradually decreases in the clockwise direction, the bottom surface of the arc groove is an inclined surface, and a plurality of auxiliary blocks corresponding to the guide rods are slidably connected to the discharge plate, and each guide rod is slidably connected to the corresponding auxiliary block, and the guide rod is provided with a tension spring located between the auxiliary block and the pressure plate.

[0011] Preferably, the clamping mechanism also includes a plurality of support rods slidably connected to the discharge plate and located at the lower side of the pressure plate, the free end of each support rod is fixedly connected to the pressure plate, an adjustment rod extending in the up and down directions is rotatably connected inside the discharge plate, the upper end surface of the adjustment rod is an inclined surface, and a push rod is provided at the lower end of the pressure plate, and the lower end of the push rod is in contact with the upper end surface of the adjustment rod.

[0012] Preferably, a ratchet is coaxially provided on the adjusting rod, a pin is slidably connected to the discharge plate, a pawl that can engage with the ratchet is rotatably connected to the pin, a coil spring is coaxially provided on the adjusting rod, the free end of the coil spring is connected to the discharge plate, and a torsion spring is sleeved on the pin.

[0013] Preferably, an auxiliary rod is slidably connected in the discharge plate, a connecting rod is hinged at one end of the auxiliary rod, the free end of the connecting rod is eccentrically hinged to the ratchet, and a push block is provided at the other end of the auxiliary rod. A sliding groove is provided on the circumferential side of one of the discs, and a booster rod is slidably connected in the sliding groove via a first elastic member, and the booster rod can contact the push block.

[0014] Preferably, the lower end of the pin shaft is connected to the discharge plate through a second elastic member, and the lower end of the pressure plate is provided with two adjustment plates located on the upper side of the pin shaft, and the thermal expansion coefficient of the upper adjustment plate is smaller than the thermal expansion coefficient of the lower adjustment plate.

[0015] Preferably, a synchronous belt is connected between the lower ends of two adjacent discs, a gear is coaxially provided at the lower end of one of the discs, and a rack that can mesh with the gear is provided on one side of the loading rack.

[0016] Preferably, a frame located above the loading rack is provided on the base, a hydraulic cylinder is provided on the frame, and a welding mold is installed on the output end of the hydraulic cylinder through a fixing plate.

[0017] A floating row welding method is also provided, comprising the following steps:

[0018] S1. First, the unwelded floating row is placed on the discharge plate, and the floating row is located between the pressure plate and the discharge plate;

[0019] S2. Secondly, the discharge plate is pushed to slide along the loading rack, so that the pressing plate moves downward and slides outward during the process, the four corners of the floating row are clamped and pulled, and the floating row is leveled and aligned;

[0020] S3. Then the hydraulic cylinder drives the welding mold to slide downward, so that the welding mold heats and melts the floating row corners for welding;

[0021] S4. When the heat is transferred through the pressure plate to the adjustment plate, the adjustment rod rotates to drive the pressure plate to move and squeeze the floating row to fully weld;

[0022] S5. After welding is completed, the welded floating row is removed from the discharge plate.

[0023] Technical effects and advantages of the present invention:

[0024] 1. The present invention drives multiple discs to rotate through a synchronous belt, and in the movement of the arc groove and the tension spring on the disc, multiple pressure plates can be synchronously moved outward along the discharge plate, while the tension spring drives the pressure plate to move downward through the guide rod, so that the multiple pressure plates can constrain the four corners of the floating row, and can pull the four corners of the floating row outward under the coordinated action of the multiple pressure plates. At this time, the floating row can be automatically leveled, which not only reduces the workload of the staff, but also avoids the problem of wrinkles and unevenness of the floating row, further improving the efficiency and quality of welding.

[0025] 2. The present invention can store force on the adjusting rod through the ratchet, pawl and coil spring during the sliding process of the discharge plate, so that after the heat is transferred to the adjusting plate, the adjusting plate expands and deforms due to thermal expansion, so that the ratchet and pawl structure are unlocked, and the coil spring drives the adjusting rod to rotate, so that the adjusting rod drives the pressure plate to gradually move upward, reducing the distance between the pressure plate and the welding mold, making the molten material at the floating row welding point more closely contacted, which can not only effectively increase the firmness of the welding, but also effectively reduce the problem of gas in the welding point, thereby improving the air tightness of the welding, and further improving the efficiency and quality of the welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a main axonometric diagram of the present invention;

[0027] Figure 2 It is a right side sectional view of the present invention;

[0028] Figure 3 It is an axonometric view of the unloading plate in the present invention;

[0029] Figure 4 It is a cross-sectional schematic diagram of the unloading plate in the present invention;

[0030] Figure 5 It is a structural schematic diagram of the present invention without the discharge plate;

[0031] Figure 6 It is a partial cutaway schematic diagram of the disc in the present invention;

[0032] Figure 7 It is a structural schematic diagram of the clamping mechanism and the pressing mechanism in the present invention;

[0033] Figure 8 It is a cutaway top axonometric view of the clamping mechanism and the pressing mechanism in the present invention;

[0034] Fig. 9 It is a partial cross-sectional schematic diagram of the unloading plate in the present invention;

[0035] Fig.10 For the present invention Fig. 9 A partial enlarged view of point A in the middle.

[0036] In the figure: 1. base; 2. loading rack; 3. unloading plate; 4. clamping mechanism; 401. pressing plate; 402. disc; 403. arc groove; 404. guide rod; 405. auxiliary block; 406. tension spring; 5. clamping mechanism; 501. pressure plate; 502. support rod; 503. adjusting rod; 504. push rod; 505. ratchet; 506. pin shaft; 507. pawl; 508. coil spring; 509. torsion spring; 6. auxiliary rod; 7. connecting rod; 8. push block; 9. slide groove; 10. first elastic member; 11. power rod; 12. second elastic member; 13. adjusting sheet; 14. synchronous belt; 15. gear; 16. rack; 17. frame; 18. hydraulic cylinder; 19. welding mold. DETAILED DESCRIPTION

[0037] 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.

[0038] Example 1

[0039] In the prior art, when performing floating row welding production, workers often lay the floating row flat on the workbench. The laid floating row is easily uneven, and it takes time to adjust the flatness of the floating row, which not only increases the burden on the workers, but also reduces the efficiency of production. At the same time, when welding the floating row, the wrinkled floating row is not only easy to affect the aesthetics of the welding, but also easy to cause poor air tightness of the welding. This embodiment is specially invented to solve the above problems.

[0040] like Figure 1-Figure 7 As shown, a floating row welding machine according to an embodiment of the present invention comprises a base 1, a loading rack 2 extending longitudinally is provided on the base 1, a discharge plate 3 is slidably connected to the loading rack 2, the discharge plate 3 is used to place the floating row to be welded, a clamping mechanism 4 is arranged on the discharge plate 3, the clamping mechanism 4 comprises a pressing plate 401 arranged on the discharge plate 3, the pressing plate 401 is used to clamp and align the floating row to be welded, the number of the pressing plates 401 is at least two, and the two pressing plates 401 are respectively used to clamp the corners of the floating row, the clamping mechanism 4 also comprises a plurality of discs 402 corresponding to the pressing plates 401 and rotatably connected to the discharge plate 3, each disc 402 is provided with an arc groove 403, a plurality of guide rods 404 corresponding to the arc groove 403 are slidably connected to the discharge plate 3, one end of each guide rod 404 is inserted into its corresponding arc groove 403, and the other end of each guide rod 404 extends out of the discharge plate 3 and is fixedly connected to the corresponding pressing plate 401.

[0041] The distance between the arc groove 403 and the center of the disc 402 gradually decreases in the clockwise direction. The bottom surface of the arc groove 403 is an inclined surface. A plurality of auxiliary blocks 405 corresponding to the guide rod 404 are slidably connected to the discharge plate 3. Each guide rod 404 is slidably connected to its corresponding auxiliary block 405. The guide rod 404 is provided with a tension spring 406 located between the auxiliary block 405 and the pressure plate 401. A synchronous belt 14 is connected between the lower ends of two adjacent discs 402. A gear 15 is coaxially provided at the lower end of one of the discs 402. A rack 16 that can mesh with the gear 15 is provided on one side of the loading rack 2. A frame 17 located above the loading rack 2 is provided on the base 1. A hydraulic cylinder 18 is provided on the frame 17. A welding mold 19 is installed at the output end of the hydraulic cylinder 18 through a fixed plate.

[0042] When in use, first place the floating row on the discharge plate 3, and make the floating row located under the pressure plate 401, and then push the discharge plate 3 to slide along the loading rack 2 to directly below the frame 17. In the process of the discharge plate 3 sliding to directly below the frame 17, the discharge plate 3 drives the gear 15 to gradually engage with the rack 16, so that the rack 16 drives the disc 402 to rotate counterclockwise along the discharge plate 3 through the gear 15, and the axial cross-section of the disc 402 is a T-shaped surface, which is convenient for the disc 402 to rotate better. No synchronous belt 14 is set between the two discs 402 close to the base 1. Under the action of the synchronous belt 14, multiple discs 402 rotate synchronously counterclockwise along the discharge plate 3, so that the disc 402 drives the pressure plate 401 to slide outward along the discharge plate 3 through the arc groove 403, the auxiliary block 405 and the guide rod 404.

[0043] The bottom end face of the guide rod 404 is provided with a support frame 406, which is provided with a support frame 407. The support frame 408 is provided with a support frame 409, and the support frame 410 is provided with a support frame 411.

[0044] After welding is completed, when the discharge plate 3 is slid out from under the frame 17, the gear 15 and the rack 16 mesh again, so that the rack 16 drives multiple discs 402 to rotate synchronously clockwise through the synchronous belt 14 and the gear 15, so that the disc 402 drives the pressure plate 401 to slide inward along the discharge plate 3 through the arc groove 403, the auxiliary block 405 and the guide rod 404. At the same time, the bottom side wall of the arc groove 403 pushes the guide rod 404 to slide upward along the auxiliary block 405, and the tension spring 406 gradually resets, and the guide rod 404 drives the pressure plate 401 to move upward and no longer contacts the floating row. Finally, the welded floating row can be removed from the discharge plate 3.

[0045] The multiple discs 402 are driven to rotate by the synchronous belt 14, and during the movement of the arc groove 403 and the tension spring 406 on the disc 402, the multiple pressure plates 401 can be synchronously moved outward along the discharge plate 3, and the tension spring 406 can drive the pressure plates 401 to move downward through the guide rod 404, so that the multiple pressure plates 401 can constrain the four corners of the floating row, and can pull the four corners of the floating row outward under the coordinated action of the multiple pressure plates 401. At this time, the floating row can be automatically leveled, which not only reduces the workload of the staff, but also avoids the problem of wrinkles and unevenness on the floating row, further improving the efficiency and quality of welding.

[0046] Example 2

[0047] During the welding process, the floating row is heated and melted, and no pressure is often applied to it at this time, which may easily cause the welding of the floating row to be incomplete and gas to be stored in the welding position, which may eventually lead to problems such as loose welding and poor airtightness. Therefore, further improvements are made based on the above embodiments.

[0048] like Figure 7-Figure 10 As shown, the clamping mechanism 5 is arranged in the discharge plate 3, and the clamping mechanism 5 includes a pressure plate 501 located in the discharge plate 3 and slidably connected to the discharge plate 3, and the pressure plate 501 is used to pressurize the floating row in welding. The clamping mechanism 5 also includes a plurality of support rods 502 slidably connected to the discharge plate 3 and located on the lower side of the pressure plate 501, and the free end of each support rod 502 is fixedly connected to the pressure plate 501. An adjusting rod 503 extending in the up and down directions is rotatably connected in the discharge plate 3, and the upper end surface of the adjusting rod 503 is an inclined surface. A push rod 504 is provided at the lower end of the pressure plate 501, and the lower end of the push rod 504 contacts the upper end surface of the adjusting rod 503.

[0049] A ratchet 505 is coaxially arranged on the adjusting rod 503, a pin 506 is slidably connected to the discharge plate 3, a pawl 507 which can mesh with the ratchet 505 is rotatably connected to the pin 506, a coil spring 508 is coaxially arranged on the adjusting rod 503, a free end of the coil spring 508 is connected to the discharge plate 3, a torsion spring 509 is sleeved on the pin 506, an auxiliary rod 6 is slidably connected in the discharge plate 3, a connecting rod 7 is hinged at one end of the auxiliary rod 6, and a free end of the connecting rod 7 is eccentrically hinged to the ratchet 505. A push block 8 is provided at the other end of the auxiliary rod 6, and a slide groove 9 is opened on the circumferential side of one of the disks 402. A power rod 11 is slidably connected to the slide groove 9 through a first elastic member 10. The power rod 11 can contact the push block 8. The lower end of the pin shaft 506 is connected to the discharge plate 3 through a second elastic member 12. The lower end of the pressure plate 501 is provided with two adjusting plates 13 located on the upper side of the pin shaft 506. The thermal expansion coefficient of the upper adjusting plate 13 is smaller than the thermal expansion coefficient of the lower adjusting plate 13.

[0050] When in use, when the rack 16 and the gear 15 are meshed, the rack 16 drives the disc 402 to rotate through the gear 15, and the disc 402 drives the power rod 11 to gradually contact the push block 8. Since the initial position of the power rod 11 contacts the side wall of the slide groove 9, the disc 402 squeezes the push block 8 through the power rod 11, and the two surfaces of the push block 8 facing the disc 402 form a V-shaped surface, so that the power rod 11 drives the auxiliary rod 6 to slide along the discharge plate 3 through the push block 8, and the auxiliary rod 6 drives the ratchet 505 to rotate counterclockwise through the connecting rod 7, so that the ratchet 505 5 drives the adjusting rod 503 to rotate counterclockwise along the material discharge plate 3, and the coil spring 508 is wound. The inclined surface of the adjusting rod 503 no longer pushes the push rod 504. At this time, under the action of the gravity of the pressure plate 501 itself, the pressure plate 501 drives the support rod 502 to slide downward along the material discharge plate 3. When the rack 16 and the gear 15 are no longer engaged, the disc 402 drives the power rod 11 to rotate to the other side of the push block 8, and under the action of the ratchet 505, the torsion spring 509 and the pawl 507 structure, the coil spring 508 can be in a winding rotation, and the power storage action is completed at this time.

[0051] When the hydraulic cylinder 18 drives the welding mold 19 to move downward through the frame 17 and contact the floating row, the heating block of the welding mold 19 heats the floating row through high frequency, so that the internal molecular movement of the floating row generates heat and melts, and in the process of continuous heating and welding, part of the heat is transferred to the regulating sheet 13 through the pressure plate 501. Since the thermal expansion coefficient of the upper regulating sheet 13 is smaller than that of the lower regulating sheet 13, the lower regulating sheet 13 bends and deforms in the direction of the upper regulating sheet 13, thereby making The adjusting piece 13 on the lower side is bent and squeezed to squeeze the pin 506, and the pin 506 slides downward along the discharge plate 3, and the second elastic member 12 is compressed. The pin 506 drives the pawl 507 to no longer engage with the ratchet 505. At this time, under the action of the coil spring 508, the coil spring 508 drives the adjusting rod 503 to rotate clockwise, and the adjusting rod 503 drives the pressure plate 501 to slide upward through the push rod 504, so that the distance between the pressure plate 501 and the welding mold 19 is gradually reduced, which can fully pressurize the welding point of the floating row, so that the melting welding effect is better.

[0052] After welding is completed, the welding mold 19 moves upward to the initial position. When the discharge plate 3 slides out from under the frame 17, the rack 16 engages with the gear 15 again, so that the gear 15 drives the disc 402 to rotate clockwise, and the disc 402 drives the assist rod 11 to contact the push block 8 again. Since the elastic force of the coil spring 508 is greater than the elastic force of the first elastic member 10, the push block 8 drives the assist rod 11 to slide inward along the slide groove 9 at this time, and the first elastic member 10 is compressed, so that the disc 402 drives the assist rod 11 to gradually cross the push block 8, and the pressure plate 501 also returns to the initial state.

[0053] During the sliding of the discharge plate 3, the adjusting rod 503 can be charged by the ratchet 505, the pawl 507 and the coil spring 508, so that after the heat is transferred to the adjusting plate 13, the adjusting plate 13 expands and deforms due to thermal expansion, so that the ratchet 505 and the pawl 507 structure are unlocked, and the coil spring 508 drives the adjusting rod 503 to rotate, so that the adjusting rod 503 drives the pressure plate 501 to gradually move upward, reducing the distance between the pressure plate 501 and the welding mold 19, making the molten material at the floating row welding point more closely contacted, which can not only effectively increase the firmness of the welding, but also effectively reduce the problem of gas in the welding point, thereby improving the air tightness of the welding, and further improving the efficiency and quality of the welding.

[0054] Example 3

[0055] Based on the above embodiment, this embodiment further provides a floating row welding method, comprising the following steps:

[0056] S1. First, the unwelded floating row is placed on the discharge plate 3, and the floating row is located between the pressure plate 401 and the discharge plate 3;

[0057] S2. Secondly, push the discharge plate 3 to slide along the loading rack 2, so that the pressing plate 401 moves downward and slides outward during the process, clamping and pulling the four corners of the floating row, and leveling and aligning the floating row;

[0058] S3. Then the welding mold 19 is driven downward by the hydraulic cylinder 18, so that the welding mold 19 heats and melts the floating row corners for welding;

[0059] S4. When the heat is transferred to the adjusting plate 13 through the pressure plate 501, the adjusting plate 13 expands and deforms due to heat, causing the pawl 507 to disengage from the ratchet 505, and the coil spring 508 relaxes to drive the adjusting rod 503 to rotate, and the adjusting rod 503 drives the pressure plate 501 to move upward to squeeze the floating row to fully weld;

[0060] S5. After welding is completed, the welded floating row is removed from the discharge plate 3.

[0061] The above shows and describes the basic principles and main features of the present invention and the 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 to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A floating row welding machine, comprising a base (1), characterized in that: The base (1) is provided with a longitudinally extending loading rack (2), and a discharge plate (3) is slidably connected to the loading rack (2), and the discharge plate (3) is used to place the floating row to be welded; A clamping mechanism (4), wherein the clamping mechanism (4) is arranged on the discharge plate (3), and the clamping mechanism (4) includes a pressure plate (401) arranged on the discharge plate (3), and the pressure plate (401) is used to clamp and align the floating row to be welded, and the number of the pressure plates (401) is at least two, and the two pressure plates (401) are respectively used to clamp the corners of the floating row, and the clamping mechanism (4) also includes a plurality of corresponding to the pressure plates (401) and The material discharge plate (3) is rotatably connected to a disc (402), each of which is provided with an arc-shaped groove (403), and the material discharge plate (3) is slidably connected to a plurality of guide rods (404) corresponding to the arc-shaped groove (403), one end of each guide rod (404) is inserted into the corresponding arc-shaped groove (403), and the other end of each guide rod (404) extends out of the material discharge plate (3) and is fixedly connected to the corresponding pressing plate (401); The distance between the arc groove (403) and the center of the circular disc (402) gradually decreases in the clockwise direction, the bottom surface of the arc groove (403) is an inclined surface, a plurality of auxiliary blocks (405) corresponding to the guide rods (404) are slidably connected to the discharge plate (3), each of the guide rods (404) is slidably connected to the corresponding auxiliary block (405), the guide rod (404) is provided with a tension spring (406) located between the auxiliary block (405) and the pressure plate (401), a synchronous belt (14) is connected between the lower ends of two adjacent circular discs (402), a gear (15) is coaxially provided at the lower end of one of the circular discs (402), and a rack (16) capable of meshing with the gear (15) is provided on one side of the loading rack (2); A clamping mechanism (5), wherein the clamping mechanism (5) is arranged in the discharge plate (3), the clamping mechanism (5) comprises a pressure plate (501) located in the discharge plate (3) and slidably connected to the discharge plate (3), the pressure plate (501) is used to pressurize the floating row during welding, the clamping mechanism (5) also comprises a plurality of support rods (502) slidably connected to the discharge plate (3) and located at the lower side of the pressure plate (501), the free end of each support rod (502) is fixedly connected to the pressure plate (501), an adjusting rod (503) extending in the up-and-down direction is rotatably connected in the discharge plate (3), the upper end surface of the adjusting rod (503) is an inclined surface, and a push rod (504) is provided at the lower end of the pressure plate (501), the lower end of the push rod (504) is in contact with the upper end surface of the adjusting rod (503).

2. The floating row welding machine according to claim 1, characterized in that: A ratchet (505) is coaxially arranged on the adjusting rod (503), a pin shaft (506) is slidably connected to the discharge plate (3), a pawl (507) which can engage with the ratchet (505) is rotatably connected to the pin shaft (506), a coil spring (508) is coaxially arranged on the adjusting rod (503), a free end of the coil spring (508) is connected to the discharge plate (3), and a torsion spring (509) is sleeved on the pin shaft (506).

3. The floating row welding machine according to claim 2, characterized in that: An auxiliary rod (6) is slidably connected inside the discharge plate (3), and a connecting rod (7) is hinged at one end of the auxiliary rod (6). The free end of the connecting rod (7) is eccentrically hinged to the ratchet (505). A push block (8) is provided at the other end of the auxiliary rod (6). A sliding groove (9) is provided on the circumferential side of one of the discs (402). A booster rod (11) is slidably connected in the sliding groove (9) via a first elastic member (10), and the booster rod (11) can contact the push block (8).

4. The floating row welding machine according to claim 3, characterized in that: The lower end of the pin shaft (506) is connected to the discharge plate (3) through a second elastic member (12), and the lower end of the pressure plate (501) is provided with two adjustment plates (13) located on the upper side of the pin shaft (506), and the thermal expansion coefficient of the upper adjustment plate (13) is smaller than the thermal expansion coefficient of the lower adjustment plate (13).

5. The floating row welding machine according to claim 4, characterized in that: The base (1) is provided with a frame (17) located above the loading frame (2), the frame (17) is provided with a hydraulic cylinder (18), and a welding mold (19) is installed at the output end of the hydraulic cylinder (18) via a fixing plate.

6. A floating row welding method, using the floating row welding machine according to claim 5 for welding, characterized in that: The following steps are involved: S1. First, the unwelded floating row is placed on the discharge plate (3), and the floating row is located between the pressure plate (401) and the discharge plate (3); S2. Secondly, the discharge plate (3) is pushed to slide along the loading rack (2), so that the pressing plate (401) moves downward and slides outward, the four corners of the floating row are clamped and pulled, and the floating row is leveled and aligned; S3. Then the hydraulic cylinder (18) drives the welding mold (19) to slide downward, so that the welding mold (19) heats and melts the floating row corners for welding; S4. When the heat is transferred through the pressure plate (501) to the adjustment plate (13), the adjustment rod (503) rotates to drive the pressure plate (501) to move and squeeze the floating row to fully weld; S5. After welding is completed, the welded floating row is removed from the discharge plate (3).

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