Welding equipment for machining steel grating

Abstract

The invention relates to the technical field of steel grating welding, in particular to welding equipment for machining a steel grating, which comprises a welding bed, a pressure welding head, an upper electrode, a lower electrode, an electrode separating and combining mechanism, a grooving mechanism, a fixed groove plate, a movable groove plate, a clamping plate and a sliding rail, a plurality of guide holes are formed in the longitudinal flat steel, annular insulating layers are arranged on the hole walls of the guide holes, the guide holes are aligned to the grid plate grooves, the lower electrodes are slidably connected with the guide holes in an inserted mode, and the electrode opening and closing mechanism is used for driving the lower electrodes to ascend and descend. The lower electrode is driven by the electrode separating and combining mechanism to be in contact with and separated from the longitudinal flat steel, the longitudinal flat steel and the transverse plate in front of the grooving mechanism can be welded in sequence in cooperation with the grooving mechanism, and therefore pressure welding and grooving are integrated, and the overall machining efficiency is improved advantageously.

Description

Technical Field

[0001] The invention relates to the technical field of steel grating welding, in particular to welding equipment for processing steel gratings. Background Art

[0002] Steel grating is made of multiple longitudinal flat steels arranged at intervals in the longitudinal direction and multiple transverse flat steels arranged at intervals in the transverse direction, which are arranged crosswise and welded. It is mainly used for ditch covers, steel structure platform plates, steel ladder treads, etc. The pressure welding machine is a semi-automatic welding equipment for processing steel grating. Before welding, workers need to insert multiple longitudinal flat steels into a base with slots, and the longitudinal flat steels need to be slotted in advance so that the transverse flat steels can be stably placed on multiple longitudinal flat steels. When the transverse flat steels reach under the pressure welding head, the pressure welding head welds the transverse flat steels with multiple longitudinal flat steels.

[0003] The Chinese invention patent with the announcement number CN116604159B discloses an automatic pressure resistance welding machine for steel gratings, including a base, a fixed bottom plate is arranged in the middle position of the upper surface of the base, a fixed platform is installed on the fixed bottom plate, a feeding platform is arranged on the top of the fixed platform, a flat steel is connected to the top surface of the feeding platform, and a transverse rib is connected to the flat steel, a feeding assembly is arranged on both sides of the fixed platform, a lifting platform is arranged above the fixed platform, an upper push rod is arranged on the bottom surface of the lifting platform, a lower push rod is arranged on the top surface of the lifting platform, a pressure welding rod is arranged at the bottom end of the lifting platform, and a first vertical platform and a second vertical platform are arranged on the base. The automatic pressure resistance welding machine for steel gratings proposed in the invention is more convenient and efficient when feeding the flat steel by providing a feeding assembly, and because a rib placing mechanism and a cutting mechanism are provided, the transverse rib can be cut and automatically arranged when the rib is fed, and when the welding is completed, the cutting mechanism can cut the excess transverse rib, which is more convenient and efficient.

[0004] However, the above technical solution still requires workers to position the slotted longitudinal flat steels one by one, and requires workers to align the slots on each longitudinal flat steel in a straight line, which limits the further improvement of the processing efficiency and processing accuracy of the steel grating. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides a welding device for processing steel gratings to solve the problem of reduced processing efficiency and reduced processing accuracy of steel gratings caused by the need to manually align the plate grooves proposed in the above background technology.

[0006] The technical solution of the present invention is: a welding device for processing steel gratings, comprising a welding bed, a pressure welding head, an upper electrode, a lower electrode, an electrode separation and combination mechanism, a grooving mechanism, a fixed groove plate, a movable groove plate, a clamping plate and a slide rail, and both sides of the pressure welding head are arranged on the welding bed through a hydraulic lifting mechanism;

[0007] Both sides of the movable groove plate are slidably arranged on the welding bed through slide rails, and the movable groove plate and the slide rails are located between the hydraulic lifting mechanisms on both sides, and the clamping plate is connected to the movable groove plate through fasteners and clamps a plurality of longitudinal flat steels;

[0008] The fixed groove plate is arranged at the feeding end of the welding bed, and the top of the movable groove plate and the top of the fixed groove plate are both provided with a plurality of grid plate grooves arranged at intervals in the directions of both sides, and the grid plate grooves are used for inserting and positioning the longitudinal flat steel;

[0009] The grooving mechanism is arranged on the welding bed and is used to reciprocate and groove the plurality of longitudinal flat steels in the two-side directions, and the grooving mechanism is located between the pressure welding head and the fixed groove plate, and the grooving mechanism and the pressure welding head are arranged at intervals to form a discharge area for the transverse plate to be inserted into the grid grooves on the plurality of longitudinal flat steels;

[0010] Upper electrodes are provided on both sides of the pressure welding head, and the upper electrodes are in contact with the horizontal plates when the pressure welding head presses the horizontal plates inserted into the plurality of longitudinal flat steel grating grooves;

[0011] A plurality of guide holes are arranged at intervals on both sides of the upper edge of the welding bed, and a ring-shaped insulating layer is arranged on the hole wall of the guide hole, the guide hole is aligned with the grid plate groove, and the lower electrode is slidably plugged into the guide hole;

[0012] The electrode separation and combination mechanism is arranged at the bottom of the welding bed and connected to the lower electrode, and the electrode separation and combination mechanism is used to drive the lower electrode to move up and down so that the lower electrode contacts and separates from the longitudinal flat steel above;

[0013] The plurality of electrode separation and combination mechanisms cooperate with the grooving mechanism to sequentially make the longitudinal flat steel in front of the grooving mechanism contact with the corresponding lower electrode, so that the grooving mechanism sequentially grooves the longitudinal flat steel that has been welded to the transverse plate.

[0014] Preferably, the electrode separation and combination mechanism comprises an insulating sleeve, a first insulating rod, a second insulating rod, a transmission rod and a push-pull assembly, and the insulating sleeve is fixedly connected to the lower electrode;

[0015] The upper end of the first insulating rod is hinged to the insulating sleeve, the lower end of the first insulating rod is hinged to the lower end of the second insulating rod, and the first insulating rod and the second insulating rod are in an inclined posture with their lower ends approaching each other;

[0016] A connecting shaft is rotatably arranged at the bottom of the welding bed through a shaft seat, and the connecting shaft is located between the two ends of the second insulating rod, and the second insulating rod is connected to the connecting shaft;

[0017] The front end of the transmission rod is hinged to the second insulating rod, and the rear end of the transmission rod is connected to the push-pull assembly.

[0018] Preferably, an insulating baffle is slidably provided on the welding bed, and the insulating baffle is located below the guide hole, the insulating baffle is connected to the transmission rod, and the insulating baffle reciprocates with the transmission rod, so that the insulating baffle forms an insulating protective component that can be evacuated between the lower electrode and the longitudinal flat steel;

[0019] The second insulating rod includes a main rod and a secondary rod, the secondary rod is located above the connecting shaft, and the secondary rod is slidably connected to the main rod in the length direction, the transmission rod is hinged to the upper end of the secondary rod, and the first insulating rod is hinged to the lower end of the main rod.

[0020] Preferably, a plurality of strip grooves connected to the guide holes are provided at the bottom of the welding bed, and the strip grooves are located below the guide holes, the insulating baffle is located in the strip grooves, and slide grooves are provided on both sides of the strip grooves, and the two sides of the insulating baffle are slidably connected with the slide grooves.

[0021] Preferably, the grooving mechanism includes a cantilever beam, a side frame, a tool drive assembly and a cutting tool. Both sides of the cantilever beam are supported on the welding bed through the side frames. The cutting tool is set on the cantilever beam through the tool drive assembly. The cutting tool is driven by the tool drive assembly to reciprocate in both directions and cut grooves on the multiple longitudinal flat steels below in turn.

[0022] Preferably, the tool drive assembly includes an upper servo motor and an upper linear guide rail arranged on the suspension beam, the upper linear guide rail is connected to the upper servo motor, and the machine base is connected to a slider of the upper linear guide rail.

[0023] Preferably, the push-pull assembly comprises a swing arm, a return spring, a guide ring and a fixed ring, the swing arm is rotatably arranged on the transmission rod, the guide ring is fixedly arranged at the bottom of the welding bed, and the transmission rod is slidably plugged with the guide ring;

[0024] The fixing ring is fixedly arranged on the transmission rod and is located between the swing arm and the guide ring. The return spring is sleeved on the transmission rod, and the two ends of the return spring are respectively in contact with the guide ring and the fixing ring.

[0025] A lower servo motor and a lower linear guide are provided at the bottom of the welding bed, the lower linear guide is connected to the lower servo motor, and the front end of the transmission rod is bent upward so that the lower linear guide passes through the area between the plurality of transmission rods and the welding bed;

[0026] One end of the swing arm is rotatably arranged on the transmission rod, and the swing arm is located between the lower linear guide rail and the fixed ring;

[0027] A toggle head is provided on the slider of the lower linear guide rail, and a strip-shaped toggle block located between two sides is provided at the tail end of the toggle head;

[0028] Elastic limiting plates are arranged on the transmission rod and on both sides of the swing arm. The elastic limiting plates are used to enable the swing arm to disengage from the strip-shaped shift block after swinging to the other side of the transmission rod, and to reset the front end of the swing arm to the path that the strip-shaped shift block will pass next time.

[0029] Preferably, the elastic limiting plates on both sides are connected by rubber ribs, and the rubber ribs are located above the swing arm.

[0030] Preferably, the swing arm is an iron rod, and the inner sides of the elastic limiting plates on both sides close to each other are provided with magnets for attracting the swing arm to stick against each other.

[0031] Preferably, an auxiliary plate placing rack is arranged between the pressure welding head and the grooving mechanism, and the two ends of the auxiliary plate placing rack are supported on the welding bed through side columns. The auxiliary plate placing rack is provided with a discharge port running through the top and the bottom, and the width of the discharge port is adapted to the thickness of the cross plate. The discharge port is used to guide the cross plate to be accurately inserted into the grating groove of multiple longitudinal flat steels when falling.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] Firstly, the present invention sets the lower electrode corresponding to the plurality of longitudinal flat steels as a liftable structure, and drives the lower electrode to contact and separate with the longitudinal flat steels through the electrode separation and combination mechanism, so as to cooperate with the grooving mechanism to weld the longitudinal flat steels and the transverse plate in front of the grooving mechanism in sequence, thereby realizing the integration of pressure welding and grooving, which is beneficial to improving the overall processing efficiency;

[0034] Secondly, the movable groove plate of the present invention fixes and pulls multiple longitudinal flat steels, so that the grooving mechanism can groove the multiple longitudinal flat steels in sequence and ensure the alignment of the plate grooves on the multiple longitudinal flat steels, thereby improving the processing accuracy and eliminating the need for manual alignment of the plate grooves, thereby further improving the overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the welding equipment for processing steel gratings of the present invention;

[0036] Figure 2 For the present invention Figure 1 Bottom view of

[0037] Figure 3 For the present invention Figure 3 The enlarged view of point A in the middle;

[0038] Figure 4 It is a structural schematic diagram of the strip groove of the present invention;

[0039] Figure 5 For the present invention Figure 4 The enlarged view of point B in the middle;

[0040] Figure 6 It is a structural schematic diagram of the bar-shaped shifting block of the present invention;

[0041] Figure 7 It is a structural schematic diagram of the electrode separation and combination mechanism of the present invention;

[0042] Figure 8 For the present invention Figure 7 Enlarged view of point C in the middle;.

[0043] Fig. 9 It is a structural schematic diagram of the pressure welding head of the present invention;

[0044] Fig.10 is a schematic structural diagram of a second insulating rod of the present invention;

[0045] Fig.11 It is a structural schematic diagram of the auxiliary plate rack of the present invention;

[0046] Fig.12 It is a schematic structural diagram of the movable groove plate of the present invention.

[0047] In the figure:

[0048] 1. Welding bed; 2. Pressure welding head; 3. Upper electrode; 4-lower electrode; 5-electrode separation and combination mechanism; 6-grooving mechanism; 7-fixed groove plate; 8-movable groove plate; 9-clamping plate; 10-slide rail; 11-hydraulic lifting mechanism; 12-guide hole; 13-insulating baffle; 14-strip groove; 15-slide groove; 16-lower servo motor; 17-lower linear guide; 18-sliding head; 19-strip block; 20-elastic limit plate; 21-rubber rib; 22-magnet; 23-auxiliary plate rack; 24-side column; 25-discharging port; 26-grid plate groove;

[0049] 501-insulating sleeve; 502-first insulating rod; 503-second insulating rod; 504-transmission rod; 505-push-pull assembly;

[0050] 5031-main rod; 5032-secondary rod;

[0051] 5051-swing arm; 5052-return spring; 5053-guide ring; 5054-fixing ring;

[0052] 601- suspension beam; 602- side frame; 603- tool drive assembly; 604- cutting tool;

[0053] 6031-upper servo motor; 6032-upper linear guide. DETAILED DESCRIPTION

[0054] 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.

[0055] See also Figure 1-12 The present invention describes the above technical solution in detail through the following embodiments:

[0056] A welding device for processing steel gratings, comprising a welding bed 1, a pressure welding head 2, an upper electrode 3, a lower electrode 4, an electrode separation and combination mechanism 5, a grooving mechanism 6, a fixed groove plate 7, a movable groove plate 8, a clamping plate 9 and a slide rail 10, both sides of the pressure welding head 2 are arranged on the welding bed 1 through a hydraulic lifting mechanism 11;

[0057] Both sides of the movable groove plate 8 are slidably arranged on the welding bed 1 through the slide rails 10, and the movable groove plate 8 and the slide rails 10 are located between the hydraulic lifting mechanisms 11 on both sides, and the clamping plate 9 is connected to the movable groove plate 8 through fasteners and clamps a plurality of longitudinal flat steels;

[0058] The fixed groove plate 7 is arranged at the feeding end of the welding bed 1, and the top of the movable groove plate 8 and the top of the fixed groove plate 7 are both provided with a plurality of grid plate grooves 26 arranged at intervals in the direction of both sides, and the grid plate grooves 26 are used for inserting and positioning the longitudinal flat steel;

[0059] The grooving mechanism 6 is arranged on the welding bed 1 and is used to reciprocate and groove the plurality of longitudinal flat steels in the two-way direction, and the grooving mechanism 6 is located between the pressure welding head 2 and the fixed groove plate 7, and the grooving mechanism 6 is arranged at intervals from the pressure welding head 2 to form a discharge area for the transverse plate to be inserted into the plurality of longitudinal flat steel upper grid grooves 26;

[0060] Upper electrodes 3 are provided on both sides of the pressure welding head 2, and the upper electrodes 3 come into contact with the horizontal plates when the pressure welding head 2 presses the horizontal plates inserted into the plurality of longitudinal flat steel grating grooves 26;

[0061] A plurality of guide holes 12 are arranged at intervals along the two sides of the welding bed 1, and a ring-shaped insulating layer is arranged on the hole wall of the guide hole 12. The guide hole 12 is aligned with the grid plate groove 26, and the lower electrode 4 is slidably plugged into the guide hole 12;

[0062] The electrode separation and combination mechanism 5 is arranged at the bottom of the welding bed 1 and connected to the lower electrode 4. The electrode separation and combination mechanism 5 is used to drive the lower electrode 4 to move up and down so that the lower electrode 4 contacts and separates from the longitudinal flat steel above.

[0063] A plurality of electrode separation and combination mechanisms 5 cooperate with the grooving mechanism 6 to sequentially bring the longitudinal flat steel in front of the grooving mechanism 6 into contact with the corresponding lower electrode 4, so that the grooving mechanism 6 grooves the longitudinal flat steel that has been welded to the transverse plate.

[0064] Specifically, when placing the longitudinal flat steel, the slide rail 10 drives the movable groove plate 8 to pass under the pressure welding head 2 and the welding mechanism and approach the fixed groove plate 7, so as to facilitate the insertion of the longitudinal flat steel into the grid groove 26 of the movable groove plate 8 and the fixed groove plate 7. Subsequently, the clamping plate 9 is fixed to the top of the movable groove plate 8 by bolts and other fasteners, so that the clamping plate 9 clamps the plurality of longitudinal flat steels on the movable groove plate 8. Then the slide rail 10 drives the movable groove plate 8 away from the fixed groove plate 7, and passes under the grooving mechanism 6 and the pressure welding head 2 in sequence. When the plurality of longitudinal flat steels pass under the grooving mechanism 6 under the traction of the movable groove plate 8, the grooving mechanism 6 grooves the plurality of arranged longitudinal flat steels in sequence from left to right. When the first grid plate groove 26 of multiple longitudinal flat steels is completed, the slide rail 10 drives the movable groove plate 8 forward, so that the grid plate groove 26 is exposed to the discharge area between the pressure welding head 2 and the grooving mechanism 6, and the cross plate is inserted into the grid plate groove 26 of multiple longitudinal flat steels manually or mechanically, and then the movable groove plate 8 pulls the multiple longitudinal flat steels forward again, and the cross plate moves to the bottom of the pressure welding head 2. At this time, the upper electrodes 3 on both sides of the pressure welding head 2 are aligned with the cross plate, and the hydraulic lifting mechanism 11 drives the pressure welding head 2 to descend, so that the upper electrode 3 contacts the cross plate. At the same time, the electrode separation and combination mechanism 5 on the far right pushes the corresponding lower electrode 4 to rise to contact with the longitudinal flat steel, and the current output by the lower electrode 4 passes between the longitudinal flat steel and the cross plate, so that the contact area between the longitudinal flat steel and the cross plate generates high temperature, thereby completing the welding. However, since the flow path of the current has the characteristics of the minimum resistance and the shortest resistance, the remaining longitudinal flat steels will not pass the current or pass a weak current at this time. When the first longitudinal flat steel on the right is welded, the grooving mechanism 6 starts to groove the first longitudinal flat steel on the right. At this time, the first lower electrode 4 on the right is separated from the first longitudinal flat steel on the right, and the grooving position of the grooving mechanism 6 is far away from the pressure welding head 2, thereby avoiding over-voltage of the grooving mechanism 6. This process continues until all longitudinal flat steels are welded to the first transverse plate, and the grooving mechanism 6 completes grooving again from right to left.

[0065] The present invention sets the lower electrode 4 corresponding to a plurality of longitudinal flat steels as a liftable structure, and drives the lower electrode 4 to contact and separate with the longitudinal flat steel through the electrode separation and combination mechanism 5, so as to cooperate with the grooving mechanism 6 to weld the longitudinal flat steel and the cross plate in front of the grooving mechanism 6 in turn, thereby avoiding damage to the grooving mechanism 6 due to over-electrification and causing electric shock to the workers, and realizing the integration of the pressure welding machine and the grooving machine, thereby avoiding the need to manually align the grating grooves 26 when the longitudinal flat steels are transferred to the pressure welding machine one by one after the grating grooves 26 for welding, resulting in low efficiency, and avoiding the problem that the cross plate cannot match the grating grooves 26 on the plurality of longitudinal flat steels due to poor alignment accuracy of the grating grooves 26 of the plurality of longitudinal flat steels, or even large distance errors of the grating grooves 26 on the plurality of longitudinal flat steels.

[0066] In addition, since the thickness of the steel grating is relatively small, the grooving mechanism 6 can quickly cut grooves on the longitudinal flat steel. Compared with the traditional pressure welding machine, although the efficiency in the pressure welding link is slightly reduced, compared with the traditional processing method of first grooving and then welding, the number of positioning and transfer of the longitudinal flat steel is reduced. Therefore, the overall processing efficiency of the steel grating will be significantly improved.

[0067] The electrode separation and combination mechanism 5 includes an insulating sleeve 501, a first insulating rod 502, a second insulating rod 503, a transmission rod 504 and a push-pull assembly 505, and the insulating sleeve 501 is fixedly connected to the lower electrode 4;

[0068] The upper end of the first insulating rod 502 is hinged to the insulating sleeve 501, and the lower end of the first insulating rod 502 is hinged to the lower end of the second insulating rod 503, and the first insulating rod 502 and the second insulating rod 503 are in an inclined posture with their lower ends close to each other;

[0069] A connecting shaft is rotatably arranged at the bottom of the welding bed 1 through a shaft seat, and the connecting shaft is located between the two ends of the second insulating rod 503, and the second insulating rod 503 is connected to the connecting shaft;

[0070] The front end of the transmission rod 504 is hinged to the second insulating rod 503 , and the rear end of the transmission rod 504 is connected to the push-pull assembly 505 .

[0071] Specifically, when the lower electrode 4 needs to contact the longitudinal flat steel, when the second insulating rod 503 is driven by the transmission rod 504, the lower end of the second insulating rod 503 swings upward, and with the help of the first insulating rod 502 and the insulating sleeve 501, the lower electrode 4 is pushed up. Conversely, the lower end of the second insulating rod 503 swings downward, and the lower electrode 4 is separated from the longitudinal flat steel that has been welded.

[0072] It should be noted that the reason why the lower electrode 4 is not driven to rise and fall directly by existing lifting components such as cylinders, electric push rods, etc. is to prevent the metal and charged parts of the lifting components from being too close to the lower electrode 4 carrying high voltage current, which may cause damage to the lifting components or make them susceptible to electromagnetic interference.

[0073] In addition, an insulating baffle 13 is slidably provided on the welding bed 1, and the insulating baffle 13 is located below the guide hole 12, and the insulating baffle 13 is connected to the transmission rod 504, and the insulating baffle 13 reciprocates with the transmission rod 504, so that the insulating baffle 13 forms an insulating protective component that can be evacuated between the lower electrode 4 and the longitudinal flat steel, that is, when the lower electrode 4 needs to contact the longitudinal flat steel, the insulating baffle 13 exposes the upper lifting port, and when the lower electrode 4 is reset, the insulating baffle 13 is reset to between the lower electrode 4 and the insulating baffle 13, isolating the lower electrode 4 from the longitudinal flat steel, avoiding the generation of an arc between the lower electrode 4 and the longitudinal flat steel, and further avoiding the grooving mechanism 6 from cutting the longitudinal flat steel when the cut longitudinal flat steel is charged, causing the grooving mechanism 6 to be over-charged, causing damage to the internal components of the grooving mechanism 6 and electric shock to the staff.

[0074] The second insulating rod 503 includes a main rod 5031 and a secondary rod 5032. The secondary rod 5032 is located above the connecting shaft, and the secondary rod 5032 is slidably connected to the main rod 5031 in the length direction. The transmission rod 504 is hinged to the upper end of the secondary rod 5032, and the first insulating rod 502 is hinged to the lower end of the main rod 5031.

[0075] Preferably, a plurality of strip grooves 14 connected to the guide holes 12 are provided at the bottom of the welding bed 1, and the strip grooves 14 are located below the guide holes 12, and the insulating baffles 13 are located in the strip grooves 14 to facilitate aesthetics and reduce the stroke required for the lower electrode 4 to contact the longitudinal flat steel, and slide grooves 15 are provided on both sides of the strip grooves 14, and the two sides of the insulating baffles 13 are slidably connected with the slide grooves 15.

[0076] Among them, the grooving mechanism 6 includes a suspension beam 601, a side frame 602, a tool drive assembly 603 and a cutting tool 604. Both sides of the suspension beam 601 are supported on the welding bed 1 through the side frame 602. The cutting tool 604 is set on the suspension beam 601 through the tool drive assembly 603. The cutting tool 604 is driven by the tool drive assembly 603 to reciprocate in the directions on both sides, and grooves the multiple longitudinal flat steels below in turn.

[0077] The tool drive assembly 603 includes an upper servo motor 6031 and an upper linear guide rail 6032 arranged on the suspension beam 601 . The upper linear guide rail 6032 is connected to the upper servo motor 6031 , and the machine base is connected to the slider of the upper linear guide rail 6032 .

[0078] The push-pull assembly 505 includes a swing arm 5051, a return spring 5052, a guide ring 5053 and a fixed ring 5054. The swing arm 5051 is rotatably arranged on the transmission rod 504, the guide ring 5053 is fixedly arranged at the bottom of the welding bed 1, and the transmission rod 504 and the guide ring 5053 are slidably plugged;

[0079] The fixing ring 5054 is fixedly arranged on the transmission rod 504 and is located between the swing arm 5051 and the guide ring 5053. The return spring 5052 is sleeved on the transmission rod 504, and the two ends of the return spring 5052 are respectively in contact with the guide ring 5053 and the fixing ring 5054.

[0080] A lower servo motor 16 and a lower linear guide 17 are provided at the bottom of the welding bed 1. The lower linear guide 17 is connected to the lower servo motor 16. The front end of the transmission rod 504 is bent upward so that the lower linear guide 17 passes through the area between the plurality of transmission rods 504 and the welding bed 1.

[0081] One end of the swing arm 5051 is rotatably disposed on the transmission rod 504, and the swing arm 5051 is located between the lower linear guide rail 17 and the fixed ring 5054;

[0082] A toggle head 18 is provided on the slider of the lower linear guide rail 17, and a strip-shaped toggle block 19 is provided at the tail end of the toggle head 18 and located between the two sides;

[0083] Elastic elastic limit plates 20 are provided on the transmission rod 504 and on both sides of the swing arm 5051. The elastic limit plates 20 are used to enable the swing arm 5051 to be disengaged from the bar-shaped shift block 19 after swinging to the other side of the transmission rod 504, and to reset the front end of the swing arm 5051 to the path that the bar-shaped shift block 19 will pass next time.

[0084] The toggle head 18 is driven by the lower linear guide rail 17 to reciprocate in both directions, and the swing arm 5051 contacts the tail end of the toggle head 18 under the obstruction of the bar-shaped toggle block 19 and rotates with the movement of the toggle head 18;

[0085] The swing arm 5051 pushes the transmission rod 504 during the process of rotating to be parallel to the transmission rod 504, so that the lower electrode 4 is driven to contact the longitudinal flat steel above, until the transmission rod 504 swings to the other side, and the reset spring 5052 drives the lower electrode 4 to reset through the transmission rod 504.

[0086] Specifically, the linear guide 17 drives the toggle head 18 to move from left to right. At this time, the front ends of the multiple swing arms 5051 are tilted to the left. When the toggle head 18 passes through the swing arm 5051, the front end of the swing arm 5051 is located between the end face of the tail end of the toggle head 18 and the side face of the strip block 19. Therefore, when the toggle head 18 continues to move to the right, the swing arm 5051 gradually moves to a position parallel to the transmission rod 504 under the push of the strip block 19. During this process, the length of the swing arm 5051 in the length direction of the transmission rod 504 increases, so that the front end of the swing arm 5051 contacts the tail end of the toggle head 18, and the swing arm 5051 pushes the transmission rod 504 as the toggle head 18 moves. When the swing arm 5051 rotates to the right side of the transmission rod 504, under the action of the reset spring 5052, the transmission rod 504 gradually resets until the swing arm 5051 contacts the elastic limit plate 20 on the right side. As the toggle head 18 moves, the elastic limit plate 20 increases the swing range of the swing arm 5051 through deformation, so that the swing arm 5051 can be disengaged from the bar block 19 and reset after disengaging from the bar block 19, ensuring that when the toggle head 18 moves from right to left, the front end of the swing arm 5051 is located on the path of the bar block 19, so that the toggle head 18 can push the swing arm 5051 again.

[0087] Among them, when the swing arm 5051 swings to the top of the transmission rod 504, the transmission rod 504 is pushed and the reset spring 5052 is compressed. Therefore, when the swing arm 5051 swings from the top of the transmission rod 504 to the other side, the reset spring 5052 can push the transmission rod 504 to reset, thereby resetting the corresponding lower electrode 4, that is, the lower electrode 4 is separated from the longitudinal flat steel that has been welded to the horizontal plate.

[0088] It should be noted that the lower linear guide 17 is not synchronized with the upper linear guide 6032. The lower linear guide 17 always moves before the upper linear guide 6032, so that the longitudinal flat steel in front of the cutting tool 604 is in contact with the corresponding lower electrode 4, and after the longitudinal flat steel and the cross plate are welded, the lower electrode 4 is separated from the corresponding longitudinal flat steel, and the cutting tool 604 then cuts grooves on the welded longitudinal flat steel.

[0089] A further optimization of the above embodiment is that the elastic limiting plates 20 on both sides are connected by rubber ribs 21 , and the rubber ribs 21 are located above the swing arm 5051 , thereby preventing the swing arm 5051 from detaching from between the elastic limiting plates 20 on both sides.

[0090] In addition, the swing arm 5051 is an iron rod, and the inner sides of the elastic limit plates 20 on both sides are close to each other and are provided with magnets 22 for attracting the swing arm 5051 to stick to it, thereby preventing the swing arm 5051 from moving toward the top of the transmission rod 504 due to mechanical vibration and the like, resulting in the swing arm 5051 being unable to collide with the end of the toggle head 18, thereby causing the toggle head 18 to be unable to push the swing arm 5051.

[0091] Compared with independently providing power to each transmission rod 504 , this embodiment helps to reduce hardware costs and subsequent maintenance costs.

[0092] In addition, an auxiliary plate placing rack 23 is arranged between the pressure welding head 2 and the grooving mechanism 6. The two ends of the auxiliary plate placing rack 23 are supported on the welding bed 1 through side columns 24. The auxiliary plate placing rack 23 is provided with a discharge port 25 running through the top and the bottom. The width of the discharge port 25 is adapted to the thickness of the cross plate. The discharge port 25 is used to guide the cross plate to be accurately inserted into the grating groove 26 of multiple longitudinal flat steels when falling.

[0093] It is known from common technical knowledge that the present application can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present application or within the scope equivalent to the present application are included in the present application.

Claims

1. A welding device for processing steel grating, characterized in that: It comprises a welding bed (1), a pressure welding head (2), an upper electrode (3), a lower electrode (4), an electrode separation and combination mechanism (5), a groove cutting mechanism (6), a fixed groove plate (7), a movable groove plate (8), a clamping plate (9) and a slide rail (10), wherein both sides of the pressure welding head (2) are arranged on the welding bed (1) via a hydraulic lifting mechanism (11); Both sides of the movable groove plate (8) are slidably arranged on the welding bed (1) via slide rails (10), and the movable groove plate (8) and the slide rails (10) are located between the hydraulic lifting mechanisms (11) on both sides, and the clamping plate (9) is connected to the movable groove plate (8) via fasteners and clamps a plurality of longitudinal flat steels; The fixed groove plate (7) is arranged at the feeding end of the welding bed (1), and the top of the movable groove plate (8) and the top of the fixed groove plate (7) are both provided with a plurality of grid plate grooves (26) arranged at intervals in the direction of both sides, and the grid plate grooves (26) are used for inserting and positioning the longitudinal flat steel; The grooving mechanism (6) is arranged on the welding bed (1) and is used to reciprocate in both sides to groove a plurality of longitudinal flat steels, and the grooving mechanism (6) is located between the pressure welding head (2) and the fixed groove plate (7), and the grooving mechanism (6) is arranged at a distance from the pressure welding head (2) to form a material discharge area for the transverse plate to be inserted into the upper grid grooves (26) of the plurality of longitudinal flat steels; Upper electrodes (3) are provided on both sides of the pressure welding head (2), and the upper electrodes (3) come into contact with the horizontal plates when the pressure welding head (2) presses the horizontal plates inserted into the plurality of longitudinal flat steel grating grooves (26); The welding bed (1) is provided with a plurality of guide holes (12) at intervals along the two side directions, and the guide holes (12) are provided with an annular insulating layer on the hole walls, the guide holes (12) are aligned with the grid plate grooves (26), and the lower electrode (4) is slidably plugged into the guide holes (12); The electrode separation and combination mechanism (5) is arranged at the bottom of the welding bed (1) and connected to the lower electrode (4), and the electrode separation and combination mechanism (5) is used to drive the lower electrode (4) to move up and down so that the lower electrode (4) can contact and separate from the longitudinal flat steel above; The plurality of electrode separation and combination mechanisms (5) cooperate with the grooving mechanism (6) to sequentially bring the longitudinal flat steel in front of the grooving mechanism (6) into contact with the corresponding lower electrode (4), so that the grooving mechanism (6) sequentially grooves the longitudinal flat steel that has been welded to the transverse plate.

2. A welding device for processing steel grating according to claim 1, characterized in that: The electrode separation and combination mechanism (5) comprises an insulating sleeve (501), a first insulating rod (502), a second insulating rod (503), a transmission rod (504) and a push-pull assembly (505); the insulating sleeve (501) is fixedly connected to the lower electrode (4); The upper end of the first insulating rod (502) is hinged to the insulating sleeve (501), the lower end of the first insulating rod (502) is hinged to the lower end of the second insulating rod (503), and the first insulating rod (502) and the second insulating rod (503) are in an inclined posture with their lower ends approaching each other; A connecting shaft is rotatably arranged at the bottom of the welding bed (1) via a shaft seat, and the connecting shaft is located between the two ends of the second insulating rod (503), and the second insulating rod (503) is connected to the connecting shaft; The front end of the transmission rod (504) is hinged to the second insulating rod (503), and the rear end of the transmission rod (504) is connected to the push-pull assembly (505).

3. A welding device for processing steel grating according to claim 2, characterized in that: An insulating baffle (13) is slidably provided on the welding bed (1), and the insulating baffle (13) is located below the guide hole (12). The insulating baffle (13) is connected to the transmission rod (504), and the insulating baffle (13) reciprocates following the transmission rod (504), so that the insulating baffle (13) forms an insulating protective component that can be evacuated between the lower electrode (4) and the longitudinal flat steel; The second insulating rod (503) comprises a main rod (5031) and a secondary rod (5032), wherein the secondary rod (5032) is located above the connecting shaft, and the secondary rod (5032) is slidably connected to the main rod (5031) in the length direction, the transmission rod (504) is hinged to the upper end of the secondary rod (5032), and the first insulating rod (502) is hinged to the lower end of the main rod (5031).

4. A welding device for processing steel grating according to claim 3, characterized in that: The bottom of the welding bed (1) is provided with a plurality of strip grooves (14) connected to the guide holes (12), and the strip grooves (14) are located below the guide holes (12), the insulating baffle (13) is located in the strip grooves (14), and slide grooves (15) are provided on both sides of the strip grooves (14), and the two sides of the insulating baffle (13) are slidably plugged into the slide grooves (15).

5. The welding equipment for processing steel grating according to claim 1 is characterized in that: The grooving mechanism (6) comprises a suspension beam (601), a side frame (602), a tool drive assembly (603) and a cutting tool (604); both sides of the suspension beam (601) are supported on the welding bed (1) via the side frames (602); the cutting tool (604) is arranged on the suspension beam (601) via the tool drive assembly (603); the cutting tool (604) is driven by the tool drive assembly (603) to reciprocate in directions on both sides, and sequentially grooves a plurality of longitudinal flat steels below.

6. The welding equipment for processing steel grating according to claim 5, characterized in that: The tool drive assembly (603) comprises an upper servo motor (6031) and an upper linear guide rail (6032) arranged on the suspension beam (601); the upper linear guide rail (6032) is connected to the upper servo motor (6031); and the machine base is connected to a slider of the upper linear guide rail (6032).

7. The welding equipment for processing steel grating according to claim 1 is characterized in that: The push-pull assembly (505) comprises a swing arm (5051), a return spring (5052), a guide ring (5053) and a fixed ring (5054); the swing arm (5051) is rotatably arranged on the transmission rod (504); the guide ring (5053) is fixedly arranged at the bottom of the welding bed (1); and the transmission rod (504) and the guide ring (5053) are slidably plugged; The fixing ring (5054) is fixedly arranged on the transmission rod (504) and is located between the swing arm (5051) and the guide ring (5053); the return spring (5052) is sleeved on the transmission rod (504), and two ends of the return spring (5052) are respectively in contact with the guide ring (5053) and the fixing ring (5054); A lower servo motor (16) and a lower linear guide rail (17) are provided at the bottom of the welding bed (1), the lower linear guide rail (17) being connected to the lower servo motor (16), and the front end of the transmission rod (504) is bent upward so that the lower linear guide rail (17) passes through the area between the plurality of transmission rods (504) and the welding bed (1); One end of the swing arm (5051) is rotatably disposed on the transmission rod (504), and the swing arm (5051) is located between the lower linear guide rail (17) and the fixing ring (5054); A toggle head (18) is arranged on the slider of the lower linear guide rail (17), and a strip-shaped toggle block (19) is arranged at the tail end of the toggle head (18) and is located between two sides; Elastic elastic limiting plates (20) are arranged on the transmission rod (504) and on both sides of the swing arm (5051). The elastic limiting plates (20) are used to enable the swing arm (5051) to be disengaged from the bar-shaped shifting block (19) after swinging to the other side of the transmission rod (504), and to reset the front end of the swing arm (5051) to the path that the bar-shaped shifting block (19) will pass next time.

8. The welding equipment for processing steel grating according to claim 7 is characterized in that: The elastic limiting plates (20) on both sides are connected by rubber ribs (21), and the rubber ribs (21) are located above the swing arm (5051).

9. The welding equipment for processing steel grating according to claim 8 is characterized in that: The swing arm (5051) is an iron rod, and magnets (22) for attracting the swing arm (5051) to abut against each other are provided on the inner sides of the elastic limiting plates (20) on both sides that are close to each other.

10. The welding equipment for processing steel grating according to claim 1, characterized in that: An auxiliary plate placing frame (23) is arranged between the pressure welding head (2) and the grooving mechanism (6), and the two ends of the auxiliary plate placing frame (23) are supported on the welding bed (1) through side columns (24). The auxiliary plate placing frame (23) is provided with a discharge port (25) penetrating the top and the bottom, and the width of the discharge port (25) is adapted to the thickness of the transverse plate. The discharge port (25) is used to guide the transverse plate to be accurately inserted into the grid plate groove (26) of a plurality of longitudinal flat steels when falling.

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