A smart welding fixture for galvanized steel sheets

Abstract

A smart welding fixture for galvanized steel sheets, belonging to the field of galvanized steel sheet processing technology, includes a base plate set on the ground, a clamping mechanism set on the ground, a processing mechanism with two grinding and cleaning sections, and a preheating welding mechanism with upper and lower preheating components. This equipment is used in smart welding systems and smart heat treatment production lines for galvanized steel sheets. The equipment can clamp and connect galvanized steel sheets of different widths, facilitating subsequent welding and improving equipment utilization. Before welding, the equipment can mechanically grind and clean the zinc coating around the welding position, removing the zinc coating before welding, thus reducing porosity and spatter. The equipment can utilize the heat generated during grinding and specialized equipment to preheat the galvanized steel sheet before welding, effectively saving resources and preventing cracks caused by temperature issues during welding. Cracks can affect weld strength and sealing, and even lead to weld failure.

Description

Technical Field

[0001] This invention relates to the field of galvanized sheet processing technology, and in particular to an intelligent welding fixture for galvanized sheets. Background Technology

[0002] Galvanized steel sheet refers to steel sheet with a layer of zinc coating on its surface. Galvanizing is a commonly used, economical, and effective method of rust prevention, and about half of the world's zinc production is used for this process.

[0003] During the use of galvanized steel sheets, welding is often required. When splicing galvanized steel sheets, if the weld contains impurities such as oxides and grease, it can easily form porosity. Porosity affects weld strength and sealing, and in severe cases, can lead to brittle fracture of the weld.

[0004] Therefore, an intelligent welding fixture for galvanized sheets is needed. This equipment can be used in intelligent welding systems and intelligent heat treatment production lines for galvanized sheets. It can clamp and connect galvanized sheets of different widths, facilitating subsequent welding and improving equipment utilization. Before welding, the equipment can mechanically grind and clean the zinc coating around the welding position, removing the zinc layer and reducing porosity and spatter. Furthermore, the equipment can utilize the heat generated during grinding and specialized equipment to preheat the galvanized sheet before welding, effectively saving resources and preventing temperature-related cracks during welding. Cracks can affect weld strength and sealing, and even lead to weld failure. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides an intelligent welding fixture for galvanized steel sheets, thereby solving these issues.

[0006] The technical solution used in this invention is: a smart welding and processing fixture for galvanized sheet, including a base plate set on the ground, a clamping mechanism set on the ground, a processing mechanism with two grinding and cleaning sections, and a preheating welding mechanism with upper and lower preheating components.

[0007] The base plate is fixedly installed in a predetermined installation area on the ground, and a sliding groove is fixedly installed on the base plate;

[0008] The preheating welding mechanism includes: a vertical frame; there are two vertical frames, which are fixedly installed on the base plate, and the inner side of the vertical frame is provided with a groove;

[0009] The preheating assembly includes: a heating box, an electric door, side covers, horizontal baffles, L-shaped rods, a screw-slider assembly III, and a welding machine. There are four L-shaped rods, each fixedly installed on both sides of the heating box. Two of the L-shaped rods have small rods on their rear sides, which slide in grooves on two vertical frames. The other two L-shaped rods have grooves on their outer sides. The upper surface of the heating box has a horizontal groove, and an electric vent valve is installed on the heating box. The electric door is installed on the horizontal groove on the heating box. There are two side covers, which are slidably installed on both sides of the heating box. There are two horizontal baffles, which are slidably installed on the outer sides of the two side covers. The frame of the screw-slider assembly III is screwed onto the heating box. The welding machine is fixedly installed on the side of the slider within the screw-slider assembly III.

[0010] Preferably, a spring is installed on the side of the crossbar, and the other side of the spring is connected to the plate on the side of the side cover.

[0011] Preferably, the lead screw and slider assembly III includes a frame, a lead screw, a motor, and a slider. The frame is screwed onto the heating box, the lead screw is rotatably installed inside the frame, the motor is fixedly installed on the frame, and its motor shaft is fixedly connected to one end of the lead screw. The slider is slidably installed inside the frame, and the threaded hole on the slider is threadedly engaged with the lead screw.

[0012] Preferably, the preheating welding mechanism further includes: a support frame, cam I, cam II, and motor I; there are two support frames, which are fixedly mounted on the base plate; there are two cam I, whose shafts are rotatably mounted in the round holes on the sides of the two support frames, and small rods are fixedly mounted on the sides of cam I, which slide in the grooves on the sides of the corresponding L-shaped rods; there are two cam II, whose shafts are rotatably mounted in the round holes on the sides of the support frames, and small rods are fixedly mounted on the sides of cam II, which slide in the grooves on the sides of the corresponding L-shaped rods; there are two motor I, which are fixedly mounted on the two support frames, and their motor shafts are connected to the shafts of the corresponding cam I and cam II via synchronous belts.

[0013] Preferably, the clamping mechanism includes: a lead screw and slider assembly I, vertical plates, pressure rods, and electric cylinder I; the lead screw and slider assembly I includes a frame, a lead screw, a motor, and two sliders. The frame is fixedly mounted on the base plate, the lead screw is rotatably mounted inside the frame, and the lead screw has threads in opposite directions from the middle to both ends. The motor is fixedly mounted on the frame, and its motor shaft is fixedly connected to one end of the lead screw. The two sliders are respectively mounted on the threads in opposite directions on the lead screw; there are two vertical plates, one side of which is slidably mounted in a groove on the base plate, and the other side of which is fixedly connected to the inner side of the two sliders in the lead screw and slider assembly I; there are two pressure rods, which are slidably mounted in the round holes of the corresponding slots on the two vertical plates; there are two electric cylinders I, the cylinder bodies of the two electric cylinders I are respectively fixedly mounted on the outer side of the two vertical plates, and the piston rod ends of the two electric cylinders I are respectively fixedly connected to the two pressure rods.

[0014] Preferably, a slot is fixedly installed at the upper end of the vertical plate.

[0015] Preferably, the processing mechanism includes: a lead screw and slider assembly II and two grinding and cleaning units. There are two lead screw and slider assemblies II, each comprising a frame, a lead screw, and a slider. The frame is fixedly mounted on the base plate by a rod. The lead screw is rotatably mounted within the frame, and the slider is slidably mounted within the frame. The threaded hole on the slider is threadedly engaged with the lead screw. One end of the lead screw in each of the two lead screw and slider assemblies II is connected by a synchronous belt. A motor is fixedly mounted on the side of one of the lead screw and slider assemblies II, and the shaft of this motor is fixedly connected to one end of the lead screw in that lead screw and slider assemblies II. The two grinding and cleaning units are fixedly mounted together.

[0016] Preferably, the grinding and cleaning unit includes: an outer shell, a vertical baffle, an electric cylinder II, a grinder, a cleaning block, a nozzle, a collection box, and a heat pipe; the outer shell is fixedly installed on the inner side of the slider in the corresponding lead screw slider assembly II by a bent rod, and the outer shell has an opening on its side; the vertical baffle is slidably installed at the side opening of the outer shell, and an L-shaped plate is fixedly installed at the upper end of the vertical baffle; the cylinder body of the electric cylinder II is fixedly installed on the side of the outer shell, and the piston rod end of the electric cylinder II is fixedly connected to the L-shaped plate on the corresponding vertical baffle; there are two grinders, one grinder is fixedly installed inside the outer shell, and the other grinder is connected to the corresponding vertical baffle. The L-shaped plate on the plate is fixedly connected; there are two cleaning blocks, one of which is fixedly installed inside the outer shell, and the other is fixedly connected to the L-shaped plate on the corresponding vertical baffle; there are two nozzles, each fixedly installed inside the outer shell, and each nozzle is connected to a water source in the environment through two water pipes, with the nozzles located on the sides of the two grinders; the collection box is fixedly installed at the opening at the lower end of the outer shell, and the collection box is connected to the side cover of the bottom plate in the environment through a pipe; one end of the heat-conducting pipe is connected to the vent at the upper end of the outer shell, and the other end of the heat-conducting pipe is fixedly connected to the electric vent valve on the corresponding heating box.

[0017] The advantages of this invention compared to the prior art are:

[0018] 1. This invention uses two electric cylinders I to drive their corresponding two pressure rods downward, so that the two pressure rods clamp the galvanized sheet placed in the slot on the vertical plate, thereby realizing the clamping and welding of galvanized sheets of different thicknesses and improving the utilization rate of the equipment.

[0019] 2. In this invention, two lead screw slider groups II drive two outer shells to move simultaneously. At this time, two grinding machines inside the outer shells move and grind the galvanized sheet at the welding points. Simultaneously, two nozzles spray water onto the grinding machines to improve the grinding effect.

[0020] 3. This invention uses a horizontal baffle to automatically fasten the side of the galvanized sheet, ensuring that the weld joint of the galvanized sheet is completely fastened into the heating box. Then, the electric vent valve on the heating box is opened, and the heating box heats its interior, achieving preheating for welding of galvanized sheets of different widths. This effectively saves resources and prevents cracks from forming during welding due to temperature issues. Cracks can affect weld strength and sealing, and may even lead to weld failure. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first angle.

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second angle.

[0023] Figure 3 This is a schematic diagram of the clamping mechanism of the present invention.

[0024] Figure 4 This is a schematic diagram of the assembly structure of the clamping mechanism and the processing mechanism of the present invention.

[0025] Figure 5 This is a schematic diagram of the processing mechanism of the present invention.

[0026] Figure 6 This is a partial structural schematic diagram of the processing mechanism of the present invention.

[0027] Figure 7 This is a schematic diagram of the preheating welding mechanism of the present invention.

[0028] Figure 8 This is a partial structural schematic diagram of the preheating welding mechanism of the present invention.

[0029] Figure 9 This is a schematic diagram of the assembly structure of the processing mechanism and the preheating welding mechanism of the present invention.

[0030] The attached figures are labeled as follows: 1. Base plate; 2. Clamping mechanism; 3. Processing mechanism; 4. Preheating welding mechanism; 201. Screw-slider assembly I; 202. Vertical plate; 203. Pressure rod; 204. Electric cylinder I; 301. Screw-slider assembly II; 302. Outer shell; 303. Vertical baffle; 304. Electric cylinder II; 305. Grinding machine; 306. Cleaning block; 307. Nozzle; 308. Collection box; 309. Heat conduction pipe; 401. Vertical frame; 402. Heating box; 403. Electric door; 404. Side cover; 405. Horizontal baffle; 406. L-shaped rod; 407. Screw-slider assembly III; 408. Electric welding machine; 409. Support frame; 410. Cam I; 411. Cam II; 412. Motor I. Detailed Implementation

[0031] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention; however, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] In the description of this invention, it should be noted that the terms "upper", "lower", "in", "out", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0033] Example: Figures 1-9 As shown, a smart welding fixture for galvanized sheet includes a base plate 1 set on the ground, a clamping mechanism 2 set on the ground, a processing mechanism 3 with two grinding and cleaning sections, and a preheating welding mechanism 4 with upper and lower preheating components.

[0034] like Figures 1-4 As shown, the base plate 1 is fixedly installed in the predetermined installation area on the ground, and a sliding groove is fixedly installed on the base plate 1.

[0035] like Figure 7 As shown, the preheating welding mechanism 4 includes: a vertical frame 401; there are two vertical frames 401, which are fixedly installed on the base plate 1, and the inner side of the vertical frame 401 is provided with a groove.

[0036] like Figures 7-9As shown, the preheating assembly includes: a heating box 402, an electric door 403, a side cover 404, a horizontal baffle 405, L-shaped rods 406, a lead screw and slider assembly III 407, and a welding machine 408; there are four L-shaped rods 406, which are fixedly installed on both sides of the heating box 402. Two of the L-shaped rods 406 have small rods on their rear sides, which slide in the grooves on the two vertical brackets 401. The other two L-shaped rods 406 have grooves on their outer sides. The upper surface of the heating box 402 has a horizontal groove. 02 can preheat galvanized sheets that need to be welded. The heating box 402 is equipped with an electric vent valve. The electric door 403 is installed on the horizontal groove on the heating box 402. There are two side covers 404, which are slidably installed on both sides of the heating box 402. There are two horizontal baffles 405, which are slidably installed on the outside of the two side covers 404 respectively. The frame of the screw slider assembly III 407 is screwed onto the heating box 402. The electric welding machine 408 is fixedly installed on the side of the slider in the screw slider assembly III 407.

[0037] like Figures 7-9 As shown, a spring is installed on the side of the horizontal baffle 405, and the other side of the spring is connected to the plate on the side of the side cover 404.

[0038] like Figures 7-9 As shown, the lead screw and slider assembly Ⅲ407 includes a frame, a lead screw, a motor, and a slider. The frame is screwed onto the heating box 402. The lead screw is rotatably installed inside the frame. The motor is fixedly installed on the frame, and its motor shaft is fixedly connected to one end of the lead screw. The slider is slidably installed inside the frame, and the threaded hole on the slider is threaded with the lead screw.

[0039] like Figures 7-9As shown, the preheating welding mechanism 4 also includes: a support frame 409, cam I 410, cam II 411, and motor I 412; there are two support frames 409, which are fixedly installed on the base plate 1; there are two cam I 410, whose shafts are rotatably installed in the round holes on the sides of the two support frames 409 respectively, and small rods are fixedly installed on the sides of the cam I 410, which slide in the grooves on the sides of the corresponding L-shaped rods 406; there are two cam II 411, whose shafts are rotatably installed in the round holes on the sides of the two support frames 409 respectively. A small rod is fixedly installed on the side of cam II 411 in the round hole on the side of support frame 409. The small rod slides in the groove on the side of the corresponding L-shaped rod 406. There are two motors I 412, which are fixedly installed on the two support frames 409 respectively. Their motor shafts are connected to the shafts of the corresponding cams I 410 and cam II 411 via synchronous belts. Specifically, when preheating the two galvanized plates to be welded, firstly, the two motors I 412 start, simultaneously driving the two cams I 410 and the two cams II 411 to rotate. Two cams I 410 and two cams II 411 drive two heating boxes 402 to move inward simultaneously, engaging and disengaging the welding joints of the two galvanized sheets to be welded. Then, the two side covers 404 are manually moved to completely engage the two sides of the galvanized sheet. At this time, the cross baffle 405 automatically engages the sides of the galvanized sheet, ensuring the welding joint is fully engaged within the heating box 402. Then, the electric vent valve on the heating box 402 is opened, and the heating box 402 heats its interior, achieving preheating for welding galvanized sheets of different widths. When welding the joints of the two galvanized sheets, the electric door 403 opens, and the upper and lower welding machines 408 simultaneously weld the upper and lower sides of the galvanized sheet inside the heating box 402. At this time, the lead screw slider group III 407 operates, driving the corresponding welding machine 408 to move and weld simultaneously, achieving intelligent welding of the galvanized sheet.

[0040] like Figure 3As shown, the clamping mechanism 2 includes: a lead screw and slider assembly I 201, a vertical plate 202, a pressure rod 203, and an electric cylinder I 204; the lead screw and slider assembly I 201 includes a frame, a lead screw, a motor, and two sliders. The frame is fixedly mounted on the base plate 1, and the lead screw is rotatably mounted inside the frame. The lead screw has threads in opposite directions from the middle to both ends. The motor is fixedly mounted on the frame, and its motor shaft is fixedly connected to one end of the lead screw. The two sliders are respectively mounted on the threads in opposite directions on the lead screw; there are two vertical plates 202. One side of the two vertical plates 202 is slidably mounted in a groove on the base plate 1, and the other side of the two vertical plates 202 is fixedly connected to the inner side of the two sliders in the lead screw and slider assembly I 201; there are two pressure rods 203. The two pressure rods 203 are respectively slidably mounted in the round holes of the corresponding slots on the two vertical plates 202. The lower end of 3 can clamp the galvanized sheet placed in the upper slot of the vertical plate 202; there are two electric cylinders I 204, the cylinder body of the two electric cylinders I 204 are respectively fixedly installed on the outside of the two vertical plates 202, and the piston rod ends of the two electric cylinders I 204 are respectively fixedly connected to the two pressure rods 203; specifically, when clamping galvanized sheets of different thicknesses, firstly, the two galvanized sheets to be welded are manually placed into the slots on the two vertical plates 202 at the same time, and then the two electric cylinders I 204 drive the two pressure rods 203 corresponding to them to move downward, so that the two pressure rods 203 clamp the galvanized sheets placed in the slots on the vertical plates 202; then, the lead screw slider group I 201 works, and at the same time drives the two vertical plates 202 to move inward, and the two vertical plates 202 respectively bring the galvanized sheets on both sides of their slots together to facilitate welding.

[0041] like Figure 3 As shown, a slot is fixedly installed at the upper end of the vertical plate 202, which is used to support the galvanized sheet.

[0042] like Figure 5 As shown, the processing mechanism 3 includes: a lead screw and slider assembly II 301 and two grinding and cleaning units; there are two lead screw and slider assemblies II 301, each comprising a frame, a lead screw, and a slider. The frame is fixedly mounted on the base plate 1 by a rod, the lead screw is rotatably mounted inside the frame, and the slider is slidably mounted inside the frame. The threaded hole on the slider is threadedly engaged with the lead screw. One end of the lead screw in each of the two lead screw and slider assemblies II 301 is connected by a synchronous belt. A motor is fixedly mounted on the side of one of the lead screw and slider assemblies II 301, and the shaft of this motor is fixedly connected to one end of the lead screw in that lead screw and slider assemblies II 301; the two grinding and cleaning units are fixedly mounted together, and can grind and clean the galvanized sheet to be welded to ensure the welding effect.

[0043] like Figure 6As shown, the grinding and cleaning unit includes: an outer casing 302, a vertical baffle 303, an electric cylinder II 304, a grinding machine 305, a cleaning block 306, a nozzle 307, a collection box 308, and a heat pipe 309. The outer casing 302 is fixedly installed on the inner side of the slider in the corresponding lead screw slider assembly II 301 by a bent rod. The outer casing 302 has an opening on its side, which can accommodate galvanized sheets of different thicknesses. The vertical baffle 303 is slidably installed at the side opening of the outer casing 302. An L-shaped plate is fixedly installed on the upper end of the vertical baffle 303. The vertical baffle 303 can hold the galvanized sheets placed in the opening of the outer casing 302. The plates are fastened together to prevent dust and debris from flying around during the grinding of the galvanized sheet; the cylinder body of the electric cylinder II 304 is fixedly installed on the side of the outer casing 302, and the piston rod end of the electric cylinder II 304 is fixedly connected to the L-shaped plate on the corresponding vertical baffle 303; there are two grinding machines 305, one of which is fixedly installed inside the outer casing 302, and the other is fixedly connected to the L-shaped plate on the corresponding vertical baffle 303. The two grinding machines 305 can simultaneously grind the top and bottom surfaces of galvanized sheets of different thicknesses placed in the opening of the outer casing 302; there are two cleaning blocks 306, one of which is fixedly installed inside the outer casing 302. One cleaning block 306 is fixedly installed inside the outer casing 302, and the other cleaning block 306 is fixedly connected to the L-shaped plate on the corresponding vertical baffle 303. The two cleaning blocks 306 can simultaneously wipe and clean the top and bottom surfaces of the galvanized sheets of different thicknesses that have been ground and placed into the opening of the outer casing 302. There are two nozzles 307, which are fixedly installed inside the outer casing 302. The two nozzles 307 are connected to a water source in the environment through two water pipes. The two nozzles 307 are located on the sides of the two grinding machines 305. The two nozzles 307 can spray water when the grinding machines 305 are grinding the galvanized sheets. Water; Collection box 308 is fixedly installed at the opening at the lower end of the outer shell 302. Collection box 308 is connected to the bottom plate side cover 404 in the environment through a pipe. Collection box 308 is used to collect galvanized sheet waste after grinding; one end of heat conduction pipe 309 is connected to the vent at the upper end of the outer shell 302, and the other end of heat conduction pipe 309 is fixedly connected to the electric vent valve on the corresponding heating box 402. Heat conduction pipe 309 can transfer the heat generated in the outer shell 302 to the corresponding heating box 402 to form a heat cycle, which improves the preheating speed in the heating box 402 while effectively saving resources;Specifically, when grinding and cleaning galvanized sheets, firstly, the lead screw and slider assembly I 201 operates, driving the two vertical plates 202 to move inward simultaneously. The galvanized sheets held by the slots on the two vertical plates 202 move inward simultaneously, so that the weldable parts of the two galvanized sheets are respectively placed into the side openings on the two outer shells 302. Then, the electric cylinder II 304 operates, driving the vertical baffle 303 to move, so that the vertical baffle 303 locks the galvanized sheets placed in the openings of the outer shells 302, preventing dust and debris from flying around during grinding. At the same time, the vertical baffle 303 drives the grinding machine 305 on it to move, so that the grinding head on the grinding machine 305 contacts the galvanized sheet. Simultaneously, the vertical baffle 303 drives the cleaning block 306 on it to contact the galvanized sheet. Upon contact, the two grinding machines 305 and the two cleaning blocks 306 simultaneously contact the weldable area of ​​the galvanized sheet. Then, the motor on one of the lead screw and slider groups II 301 starts, driving both lead screw and slider groups II 301 to work simultaneously. These two lead screw and slider groups II 301 drive the two outer casings 302 to move simultaneously. At this time, the two grinding machines 305 inside the outer casings 302 grind the weldable area of ​​the galvanized sheet while moving. Simultaneously, two nozzles 307 spray water onto the grinding machines 305 to improve the grinding effect. At the same time, the two cleaning blocks 306 wipe and clean the ground galvanized sheet. The ground galvanized sheet waste flows through the collection box 308 into the bottom plate side cover 404 in the environment for collection.

[0044] Working Principle: This equipment is used in intelligent welding systems and intelligent heat treatment production lines for galvanized sheets. It can clamp and butt-join galvanized sheets of different widths, facilitating subsequent welding and improving equipment utilization. Before welding, it mechanically grinds and cleans the zinc coating around the welding position, removing the zinc layer to reduce porosity and spatter. It utilizes the heat generated during grinding and specialized equipment to preheat the galvanized sheet before welding, effectively saving resources and preventing temperature-related cracks during welding. Cracks can affect weld strength and sealing, and even lead to weld failure.

[0045] Before welding galvanized sheets, when clamping galvanized sheets of different thicknesses, the two galvanized sheets to be welded are manually placed into the slots on the two vertical plates 202 at the same time. Then, the two electric cylinders I 204 drive the two corresponding pressure rods 203 to move downwards, so that the two pressure rods 203 clamp the galvanized sheets placed in the slots on the vertical plates 202.

[0046] Then, the welding joints of the galvanized sheets to be welded are ground and cleaned. At this time, the lead screw slider assembly I 201 operates, driving the two vertical plates 202 to move inward simultaneously. The galvanized sheets held by the slots on the two vertical plates 202 move inward simultaneously, so that the welding joints of the two galvanized sheets are respectively placed into the side openings on the two outer shells 302. Then, the electric cylinder II 304 operates, driving the vertical baffle 303 to move, so that the vertical baffle 303 locks the galvanized sheets placed in the openings of the outer shells 302, preventing dust from flying around during the grinding of the galvanized sheets. At the same time, the vertical baffle 303 drives the grinding machine 305 on it to move, so that the grinding head on the grinding machine 305 contacts the galvanized sheet. Simultaneously, the vertical baffle 303 drives the cleaning block 306 on it to... When the galvanized sheet comes into contact, the two upper and lower grinding machines 305 and the two upper and lower cleaning blocks 306 simultaneously contact the area of ​​the galvanized sheet that needs to be welded. Then, the motor on one of the lead screw and slider groups II 301 starts, driving the two lead screw and slider groups II 301 to work simultaneously. The two lead screw and slider groups II 301 drive the two outer shells 302 to move simultaneously. At this time, the two grinding machines 305 inside the outer shells 302 grind the area of ​​the galvanized sheet that needs to be welded while moving. At the same time, the two nozzles 307 spray water onto the grinding machines 305 to improve the grinding effect. Meanwhile, the two cleaning blocks 306 wipe and clean the galvanized sheet after grinding. The galvanized sheet waste after grinding flows into the bottom plate side cover 404 in the environment through the collection box 308 for collection.

[0047] Then, the lead screw and slider assembly I201 works, simultaneously driving the two vertical plates 202 to move inward. The two vertical plates 202 then bring the galvanized plates on both sides of their slots together to facilitate welding.

[0048] Then, the galvanized sheet to be welded is preheated. First, two motors I 412 are started, which simultaneously drive two cams I 410 and two cams II 411 to rotate. The two cams I 410 and two cams II 411 then drive the two heating boxes 402 to move inward at the same time, locking the welding joint of the two galvanized sheets to be welded. Then, the two side covers 404 are manually moved so that the two side covers 404 completely lock the two sides of the galvanized sheet. At this time, the horizontal baffle 405 automatically locks the side of the galvanized sheet, so that the welding joint of the galvanized sheet is completely locked into the heating box 402. Then, the electric vent valve on the heating box 402 is opened, and the heating box 402 heats its interior to achieve welding preheating for galvanized sheets of different widths.

[0049] When welding the joint of two galvanized sheets, the electric door 403 is opened. Then, the upper and lower welding machines 408 simultaneously weld the upper and lower sides of the galvanized sheet in the heating box 402. At this time, the lead screw slider group III 407 works, driving the corresponding welding machine 408 to move and weld at the same time, realizing intelligent welding of galvanized sheets, effectively improving welding efficiency while saving manpower.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart welding fixture for galvanized steel sheets, characterized in that, The system includes a base plate (1) set on the ground, a clamping mechanism (2) set on the ground, a processing mechanism (3) with two grinding and cleaning sections, and a preheating welding mechanism (4) with upper and lower preheating components. The base plate (1) is fixedly installed in a predetermined installation area on the ground, and a sliding groove is fixedly installed on the base plate (1). The preheating welding mechanism (4) includes a vertical frame (401). There are two vertical frames (401), which are fixedly installed on the base plate (1), and the inner side of the vertical frame (401) is provided with a groove. The preheating components include a heating box (402), an electric door (403), a side cover (404), a horizontal baffle (405), an L-shaped rod (406), a screw and slider group III (407), and an electric welding machine (408). There are four L-shaped rods (406), which are fixedly installed on the ground. On both sides of the heating box (402), two L-shaped rods (406) have small rods on their rear sides. These two small rods slide in the grooves on the two vertical frames (401) respectively. The other two L-shaped rods (406) have grooves on their outer sides. The upper end face of the heating box (402) has a horizontal groove. The heating box (402) has an electric vent valve. The electric door (403) is installed on the horizontal groove on the heating box (402). There are two side covers (404), which are slidably installed on both sides of the heating box (402). There are two horizontal baffles (405), which are slidably installed on the outer sides of the two side covers (404) respectively. The frame of the screw slider assembly III (407) is screwed onto the heating box (402). The electric welding machine (408) is fixedly installed on the side of the slider in the screw slider assembly III (407). The preheating welding mechanism (4) further includes: a support frame (409), a cam I (410), a cam II (411), and a motor I (412); there are two support frames (409), which are fixedly installed on the base plate (1); there are two cams I (410), and the shafts of the two cams I (410) are respectively rotatably installed in the round holes on the sides of the two support frames (409). A small rod is fixedly installed on the side of the cam I (410), and the small rod is on the side of the corresponding L-shaped rod (406). The cam II (411) slides in the groove; there are two cams II (411), and the shafts of the two cams II (411) are respectively rotatably installed in the round holes on the side of the support frame (409). A small rod is fixedly installed on the side of the cam II (411), and the small rod slides in the groove on the side of the corresponding L-shaped rod (406); there are two motors I (412), and the two motors I (412) are respectively fixedly installed on the two support frames (409). The motor shafts are connected to the shafts of the corresponding cams I (410) and cam II (411) through a synchronous belt.

2. The intelligent welding fixture for galvanized steel sheets according to claim 1, characterized in that, A spring is installed on the side of the horizontal baffle (405), and the other side of the spring is connected to the plate on the side of the side cover (404).

3. The intelligent welding fixture for galvanized steel sheets according to claim 1, characterized in that, The aforementioned lead screw and slider assembly III (407) includes a frame, a lead screw, a motor, and a slider. The frame is screwed onto the heating box (402). The lead screw is rotatably installed inside the frame. The motor is fixedly installed on the frame, and its motor shaft is fixedly connected to one end of the lead screw. The slider is slidably installed inside the frame, and the threaded hole on the slider is threadedly engaged with the lead screw.

4. The intelligent welding fixture for galvanized steel sheets according to claim 1, characterized in that, The clamping mechanism (2) includes: a lead screw and slider assembly I (201), a vertical plate (202), a pressure rod (203), and an electric cylinder I (204); the lead screw and slider assembly I (201) includes a frame, a lead screw, a motor, and two sliders. The frame is fixedly installed on the base plate (1), the lead screw is rotatably installed inside the frame, and the lead screw has threads in opposite directions from the middle to both ends. The motor is fixedly installed on the frame, and its motor shaft is fixedly connected to one end of the lead screw. The two sliders are respectively installed on the threads in opposite directions of the lead screw; there are two vertical plates (202), and the two vertical plates (203, 204, 205, 206, 207, 208, 209, 20 ... 2) One side is slidably installed in the groove on the base plate (1), and the other side of the two vertical plates (202) is fixedly connected to the inner side of the two sliders in the screw slider group I (201); there are two pressure rods (203), and the two pressure rods (203) are slidably installed in the round holes of the slots on the corresponding two vertical plates (202); there are two electric cylinders I (204), and the cylinder body of the two electric cylinders I (204) is fixedly installed on the outside of the two vertical plates (202), and the piston rod end of the two electric cylinders I (204) is fixedly connected to the two pressure rods (203).

5. The intelligent welding fixture for galvanized steel sheets according to claim 4, characterized in that, The upper end of the vertical plate (202) is fixedly installed with a slot.

6. The intelligent welding fixture for galvanized steel sheets according to claim 1, characterized in that, The processing mechanism (3) includes: a lead screw and slider assembly II (301) and two grinding and cleaning parts. There are two lead screw and slider assemblies II (301). Each lead screw and slider assembly II (301) includes a frame, a lead screw, and a slider. The frame is fixedly installed on the base plate (1) by a rod. The lead screw is rotatably installed in the frame, and the slider is slidably installed in the frame. The threaded hole on the slider is threadedly engaged with the lead screw. One end of the lead screw in each of the two lead screw and slider assemblies II (301) is connected by a synchronous belt. A motor is fixedly installed on the side of one of the lead screw and slider assemblies II (301). The shaft of the motor is fixedly connected to one end of the lead screw in the lead screw and slider assemblies II (301). The two grinding and cleaning parts are fixedly installed together.

7. The intelligent welding fixture for galvanized steel sheets according to claim 6, characterized in that, The grinding and cleaning unit includes: an outer shell (302), a vertical baffle (303), an electric cylinder II (304), a grinding machine (305), a cleaning block (306), a nozzle (307), a collection box (308), and a heat pipe (309); the outer shell (302) is fixedly installed on the inner side of the slider in the corresponding lead screw slider assembly II (301) by a bent rod, and the outer shell (302) has an opening on its side; the vertical baffle (303) slides... The moving part is installed at the side opening of the outer shell (302), and an L-shaped plate is fixedly installed on the upper end of the vertical baffle (303); the cylinder body of the electric cylinder II (304) is fixedly installed on the side of the outer shell (302), and the piston rod end of the electric cylinder II (304) is fixedly connected to the L-shaped plate on the corresponding vertical baffle (303); there are two grinders (305), one grinder (305) is fixedly installed inside the outer shell (302), and the other grinder (305) is installed in the side opening of the outer shell (302). The cleaning block (306) is fixedly connected to the L-shaped plate on the corresponding vertical baffle (303); there are two cleaning blocks (306), one cleaning block (306) is fixedly installed inside the outer shell (302), and the other cleaning block (306) is fixedly connected to the L-shaped plate on the corresponding vertical baffle (303); there are two nozzles (307), the two nozzles (307) are fixedly installed inside the outer shell (302), the two nozzles (307) are connected to the water source in the environment through two water pipes, and the two nozzles (307) are located on the sides of the two grinders (305); the collection box (308) is fixedly installed at the opening at the lower end of the outer shell (302), and the collection box (308) is connected to the bottom plate side cover in the environment through a pipe; one end of the heat conduction pipe (309) is connected to the vent at the upper end of the outer shell (302), and the other end of the heat conduction pipe (309) is fixedly connected to the electric vent valve on the corresponding heating box (402).

Images