A welding device for processing steel grating

Abstract

The present invention relates to the technical field of steel grating welding, and specifically relates to a welding device for processing steel gratings, including a welding bed, a pressure welding head, an upper electrode, a lower electrode, an electrode separating and combining mechanism, a grooving mechanism, a fixed grooving plate, a movable grooving plate, a clamping plate and a slide rail. The grooving mechanism is arranged on the welding bed. A plurality of guiding holes are arranged at intervals along both sides of the welding bed, and an annular insulating layer is arranged on the wall of the guiding holes. The guiding holes are aligned with the grating grooves. The lower electrode is slidably inserted into the guiding holes. The electrode separating and combining mechanism is used to drive the lower electrode to move up and down. By setting the lower electrodes corresponding to a plurality of longitudinal flat steels to be liftable structures, and driving the lower electrodes to contact and separate from the longitudinal flat steels through the electrode separating and combining mechanism, it is possible to cooperate with the grooving mechanism to sequentially weld the longitudinal flat steels and the transverse plates in front of the grooving mechanism, thereby realizing the integration of pressure welding and grooving, which is beneficial to improving the overall processing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of steel grating welding, and specifically relates to a welding device for processing steel gratings. Background Art

[0002] A steel grating is formed by welding multiple longitudinally spaced longitudinal flat steels and multiple transversely spaced transverse flat steels arranged in a cross pattern. It is mainly used as a drainage ditch cover plate, a steel structure platform plate, a tread plate of a steel ladder, etc. A pressure welding machine is a semi-automatic welding device for processing steel gratings. Before welding, workers need to insert multiple longitudinal flat steels onto a base with card slots, and the longitudinal flat steels need to be grooved in advance so that the transverse flat steels can be stably placed on the multiple longitudinal flat steels. When the transverse flat steel reaches below the pressure welding head, the pressure welding head welds the transverse flat steel to the multiple longitudinal flat steels.

[0003] The Chinese invention patent with the publication number CN116604159B discloses an automatic pressure resistance welding machine for steel gratings, which includes a base. In the middle position of the upper surface of the base, there is a fixed bottom plate. A fixed table is installed on the fixed bottom plate. A feeding table is arranged on the top of the fixed table. A flat steel is connected to the top surface of the feeding table, and a transverse rib is connected to the flat steel. Feeding assemblies are arranged on both sides of the fixed table. A lifting table is arranged above the fixed table. An upper pushing rod is arranged on the bottom surface of the lifting table, and a lower pushing rod is arranged on the top surface of the lifting table. A pressure welding electrode is arranged at the bottom end of the lifting table. A first vertical table and a second vertical table are also arranged on the base. The automatic pressure resistance welding machine for steel gratings proposed by this invention is more convenient and fast when feeding the flat steel by setting a feeding assembly. Also, due to the setting of a rib placing mechanism and a cutting mechanism, when feeding the transverse rib, it can be cut and automatically arranged. When the welding is completed, the cutting mechanism can cut the excess length of the transverse rib, which is more convenient and efficient.

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

[0005] In order to make up for the above deficiencies, the present invention provides a welding device for processing steel gratings to solve the problems of reduced processing efficiency and reduced processing accuracy of steel gratings caused by manual alignment of plate grooves in the above background art.

[0006] The technical solution of the present invention is: A welding device for processing steel gratings includes 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 slide rail. 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 two hydraulic lifting mechanisms. 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. A plurality of grid plate grooves are arranged at intervals in the two-side direction on the top of the movable groove plate and the top of the fixed groove plate. The grid plate grooves are used for inserting and positioning the longitudinal flat steels.

[0009] The grooving mechanism is arranged on the welding bed and is used for reciprocatingly grooving a plurality of longitudinal flat steels in the two-side direction. The grooving mechanism is located between the pressure welding head and the fixed groove plate, and the grooving mechanism is arranged at an interval from the pressure welding head to form a feeding area for inserting the transverse plate into the grid plate grooves on the plurality of longitudinal flat steels.

[0010] Upper electrodes are arranged on both sides of the pressure welding head. When the pressure welding head presses the transverse plate inserted into the grid plate grooves of the plurality of longitudinal flat steels, the upper electrodes are in contact with the transverse plate.

[0011] A plurality of guide holes are arranged at intervals in the two-side direction on the welding bed, and an annular insulating layer is arranged on the wall of the guide holes. The guide holes are aligned with the grid plate grooves, and the lower electrode is slidably inserted into the guide holes.

[0012] The electrode separating and combining mechanism is arranged at the bottom of the welding bed and is connected to the lower electrode. The electrode separating and combining mechanism is used for driving the lower electrode to lift, so that the lower electrode contacts and separates from the upper longitudinal flat steel.

[0013] A plurality of the electrode separating and combining mechanisms cooperate with the grooving mechanism to sequentially make the longitudinal flat steel in front of the grooving mechanism contact the corresponding lower electrode, so that the grooving mechanism sequentially grooves the longitudinal flat steel that has completed welding with the transverse plate.

[0014] Preferably, the electrode separating and combining mechanism includes an insulating sleeve, a first insulating rod, a second insulating rod, a transmission rod and a pushing and pulling assembly. 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 the 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. 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 tail end of the transmission rod is connected to the pushing and pulling 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 cutting tool 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 limit plates are arranged on both sides of the swing arm on the transmission rod. The elastic limit plates are used to enable the swing arm to disengage from the strip-shaped dial block after swinging to the other side of the transmission rod, and to reset the front end of the swing arm to the path where the strip-shaped dial block will pass next.

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

[0030] Preferably, the swing arm is an iron rod, and magnets for attracting the swing arm to abut are arranged on the inner sides of the elastic limit plates on both sides close to each other.

[0031] Preferably, an auxiliary plate placing rack is arranged between the pressure welding head and the grooving mechanism. Both ends of the auxiliary plate placing rack are supported on the welding bed by side columns. A material placing opening penetrating through the top and bottom is arranged on the auxiliary plate placing rack. The width of the material placing opening is adapted to the thickness of the cross plate. The material placing opening is used to guide the cross plate to accurately insert into the grid plate grooves of multiple longitudinal flat steels when falling.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0033] First, by setting the lower electrodes corresponding to multiple longitudinal flat steels one by one as liftable structures, and driving the lower electrodes to contact and separate from the longitudinal flat steels through the electrode separating and combining mechanism, the present invention can cooperate with the grooving mechanism to sequentially weld the longitudinal flat steels and the cross plate in front of the grooving mechanism, so as to realize the integration of pressure welding and grooving, which is beneficial to improving the overall processing efficiency.

[0034] Second, the moving groove plate of the present invention fixes and pulls multiple longitudinal flat steels, enables the grooving mechanism to sequentially groove multiple longitudinal flat steels, and ensures the alignment of the plate grooves on multiple longitudinal flat steels, improves the processing accuracy, and eliminates the need for manual alignment of the plate grooves, thereby further improving the overall processing efficiency. Description of the Drawings

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

[0036] Figure 2 is the Figure 1 bottom view of the present invention;

[0037] Figure 3 is the Figure 3 enlarged view at A in the present invention;

[0038] Figure 4 is a schematic diagram of the strip-shaped groove structure of the present invention;

[0039] Figure 5 is the Figure 4 enlarged view at B in the present invention;

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

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

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

[0046] Figure 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 technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0055] Please refer to Figure 1-12 , the above technical solutions will be described in detail by the following embodiments of the present invention:

[0056] A welding device for processing steel grating, comprising a welding bed 1, a pressure welding head 2, an upper electrode 3, a lower electrode 4, an electrode separating and combining mechanism 5, a grooving mechanism 6, a fixed grooving plate 7, a moving grooving 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 moving grooving plate 8 are slidably arranged on the welding bed 1 through the slide rail 10, and the moving grooving plate 8 and the slide rail 10 are located between the two hydraulic lifting mechanisms 11. The clamping plate 9 is connected to the moving grooving plate 8 through a fastener and clamps a plurality of longitudinal flat steels;

[0058] The fixed grooving plate 7 is arranged at the feeding end of the welding bed 1. Both the top of the moving grooving plate 8 and the top of the fixed grooving plate 7 are provided with a plurality of grooving slots 26 for grating spaced apart in the two side directions. The grooving slots 26 are used for inserting and positioning the longitudinal flat steels;

[0059] The grooving mechanism 6 is arranged on the welding bed 1 and is used for reciprocatingly grooving a plurality of longitudinal flat steels in the two side directions. The grooving mechanism 6 is located between the pressure welding head 2 and the fixed grooving plate 7, and the grooving mechanism 6 is spaced apart from the pressure welding head 2 to form a feeding area for inserting a transverse plate into the grooving slots 26 of a plurality of longitudinal flat steels;

[0060] Both sides of the pressure welding head 2 are provided with upper electrodes 3. The upper electrodes 3 are in contact with the transverse plate when the pressure welding head 2 compresses the transverse plate inserted into the grooving slots 26 of a plurality of longitudinal flat steels;

[0061] A plurality of guide holes 12 are spaced apart in the two side directions on the welding bed 1, and an annular insulating layer is arranged on the wall of the guide holes 12. The guide holes 12 are aligned with the grooving slots 26, and the lower electrode 4 is slidably inserted into the guide holes 12;

[0062] The electrode separating and combining mechanism 5 is arranged at the bottom of the welding bed 1 and is connected to the lower electrode 4. The electrode separating and combining mechanism 5 is used for driving the lower electrode 4 to lift, so that the lower electrode 4 contacts and separates from the upper longitudinal flat steel;

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

[0064] Specifically, when placing the longitudinal flat steel, the slide rail 10 drives the moving 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 inserting the longitudinal flat steel into the grid plate grooves 26 of the moving groove plate 8 and the fixed groove plate 7. Subsequently, the clamping plate 9 is fixed on the top of the moving groove plate 8 through fasteners such as bolts, so that the clamping plate 9 clamps multiple longitudinal flat steels on the moving groove plate 8. Then the slide rail 10 drives the moving groove plate 8 away from the fixed groove plate 7 and sequentially passes under the grooving mechanism 6 and the pressure welding head 2. When multiple longitudinal flat steels pass under the grooving mechanism 6 under the traction of the moving groove plate 8, the grooving mechanism 6 sequentially grooves multiple arranged longitudinal flat steels from left to right. When the first grid plate groove 26 of multiple longitudinal flat steels is completed, the slide rail 10 drives the moving groove plate 8 forward, so that the grid plate groove 26 is exposed in the feeding area between the pressure welding head 2 and the grooving mechanism 6. The cross plate is inserted into the grid plate grooves 26 of multiple longitudinal flat steels manually or mechanically. Then the moving groove plate 8 drives multiple longitudinal flat steels forward again, and the cross plate moves under 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 rightmost side pushes the corresponding lower electrode 4 to rise until it contacts the longitudinal flat steel. The current output by the lower electrode 4 passes between the longitudinal flat steel and the cross plate, generating high temperature in the contact area between the longitudinal flat steel and the cross plate, thereby completing the welding. Since the current flow path has the characteristics of the smallest resistance and the shortest resistance, the remaining longitudinal flat steels will not pass through the current or pass through a weak current at this time. When the welding of the first longitudinal flat steel on the right side is completed, the grooving mechanism 6 starts to groove the first longitudinal flat steel on the right side. At this time, the first lower electrode 4 on the right side has been separated from the first longitudinal flat steel on the right side, and the grooving position of the grooving mechanism 6 is far from the pressure welding head 2, thus avoiding the overcurrent of the grooving mechanism 6. Until all the longitudinal flat steels are welded to the first cross plate and the grooving mechanism 6 completes grooving again from right to left, and so on.

[0065] By setting the lower electrode 4 corresponding to multiple longitudinal flat steels as a liftable structure and driving the lower electrode 4 to contact and separate from the longitudinal flat steel through the electrode separation and combination mechanism 5, the present invention can cooperate with the grooving mechanism 6 to sequentially weld the longitudinal flat steel and the cross plate in front of the grooving mechanism 6, avoiding the damage of the grooving mechanism 6 due to overcurrent and the electric shock of the staff, and realizing the integration of the pressure welder and the grooving machine. It also avoids the problems that when the longitudinal flat steel is transferred to the pressure welder one by one after the grid plate groove 26, it is necessary to manually align the grid plate groove 26, resulting in low efficiency, and the problem that the cross plate cannot match the grid plate grooves 26 on multiple longitudinal flat steels due to the poor alignment accuracy of the grid plate grooves 26 on multiple longitudinal flat steels or even the large distance error between the grid plate grooves 26 on multiple longitudinal flat steels.

[0066] In addition, due to the relatively small thickness of the steel grating plate, the grooving mechanism 6 can quickly groove the longitudinal flat steel. Compared with traditional pressure welders, although the efficiency in the pressure welding process decreases slightly, compared with the traditional processing method of grooving first and then welding, the positioning times and transfer times of the longitudinal flat steel are reduced. Therefore, the overall processing efficiency of the steel grating plate will be significantly improved.

[0067] Among them, the electrode opening and closing 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. 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, 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;

[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. 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 tail 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 the lower electrode 4 is pushed upward by means of the first insulating rod 502 and the insulating sleeve 501. On the contrary, when the lower end of the second insulating rod 503 swings downward, the lower electrode 4 separates from the longitudinally flattened steel that has been welded.

[0072] It should be noted that the reason for not directly driving the lower electrode 4 to lift through existing lifting components such as cylinders and electric push rods is to prevent the metal and charged components of the lifting components from being too close to the lower electrode 4 with high-voltage current, resulting in damage to the lifting components or being easily affected by electromagnetic interference.

[0073] Moreover, an insulating baffle 13 is slidably arranged on the welding bed 1, and the insulating baffle 13 is located below the guiding hole 12. The insulating baffle 13 is connected to the transmission rod 504, and the insulating baffle 13 reciprocates along with the transmission rod 504, so as to form a detachable insulating protection component 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. After the lower electrode 4 resets, the insulating baffle 13 resets between the lower electrode 4 and the insulating baffle 13 to isolate the lower electrode 4 from the longitudinal flat steel, avoiding the generation of electric arcs between the lower electrode 4 and the longitudinal flat steel. Further, when the grooving mechanism 6 grooves the longitudinal flat steel, it can prevent the grooved longitudinal flat steel from being charged, which may cause the grooving mechanism 6 to be electrified, resulting in 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 sub-rod 5032. The sub-rod 5032 is located above the connecting shaft, and the sub-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 sub-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-shaped grooves 14 communicating with the guiding holes 12 are arranged at the bottom of the welding bed 1, and the strip-shaped grooves 14 are located below the guiding holes 12. The insulating baffle 13 is located in the strip-shaped grooves 14 to facilitate aesthetics and reduce the stroke required for the lower electrode 4 to contact the longitudinal flat steel. Both sides of the strip-shaped grooves 14 are provided with sliding grooves 15, and both sides of the insulating baffle 13 are slidably inserted into the sliding grooves 15.

[0076] Among them, the grooving mechanism 6 includes a cantilever 601, side frames 602, a tool driving assembly 603 and a cutting tool 604. Both sides of the cantilever 601 are supported on the welding bed 1 through the side frames 602. The cutting tool 604 is arranged on the cantilever 601 through the tool driving assembly 603. The cutting tool 604 is driven by the tool driving assembly 603 to reciprocate in the lateral direction and groove a plurality of longitudinal flat steels below in sequence.

[0077] Among them, the tool driving assembly 603 includes an upper servo motor 6031 and an upper linear guide 6032 arranged on the cantilever 601. The upper linear guide 6032 is connected to the upper servo motor 6031, and the cutting tool 604 is connected to the slider of the upper linear guide 6032.

[0078] The pushing and pulling assembly 505 includes a swing arm 5051, a return spring 5052, a guiding ring 5053 and a fixing ring 5054. The swing arm 5051 is rotatably arranged on the transmission rod 504. The guiding ring 5053 is fixedly arranged at the bottom of the welding bed 1, and the transmission rod 504 is slidably inserted into the guiding ring 5053;

[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 following linear guide rail 17 drives the toggle head 18 to move from left to right. At this time, the front ends of multiple swing arms 5051 are inclined to the left. When the toggle head 18 passes by the swing arms 5051, the front ends of the swing arms 5051 are located between the end face of the tail end of the toggle head 18 and the side face of the strip-shaped toggle block 19. Therefore, when the toggle head 18 continues to move to the right, the swing arms 5051 gradually move towards a position parallel to the transmission rod 504 under the push of the strip-shaped toggle block 19. During this process, the length of the swing arms 5051 in the length direction of the transmission rod 504 increases, so that the front ends of the swing arms 5051 contact the tail end of the toggle head 18, and the swing arms 5051 push the transmission rod 504 as the toggle head 18 moves. When the swing arms 5051 rotate to the right side of the transmission rod 504, under the action of the return spring 5052, the transmission rod 504 gradually resets until the swing arms 5051 contact the elastic limit plate 20 on the right side. As the toggle head 18 moves, the elastic limit plate 20 deforms to increase the swing amplitude of the swing arms 5051, so that the swing arms 5051 can disengage from the strip-shaped toggle block 19 and reset after disengaging from the strip-shaped toggle block 19, ensuring that when the toggle head 18 moves from right to left, the front ends of the swing arms 5051 are on the path of the strip-shaped toggle block 19, so that the toggle head 18 can push the swing arms 5051 again.

[0087] Among them, when the swing arms 5051 swing directly above the transmission rod 504, the transmission rod 504 is pushed and the return spring 5052 is compressed. Therefore, when the swing arms 5051 swing from directly above the transmission rod 504 to the other side, the return spring 5052 can push the transmission rod 504 to reset, so that the corresponding lower electrode 4 resets, that is, the lower electrode 4 disengages from the longitudinal flat steel already welded to the cross plate.

[0088] It should be noted that the lower linear guide rail 17 and the upper linear guide rail 6032 are not synchronized. The lower linear guide rail 17 always acts prior to the upper linear guide rail 6032, so as to achieve the contact between the longitudinal flat steel in front of the cutting tool 604 and the corresponding lower electrode 4. After the longitudinal flat steel is welded to the cross plate, the lower electrode 4 separates from the corresponding longitudinal flat steel, and then the cutting tool 604 cuts a groove in the welded longitudinal flat steel.

[0089] On the basis of the above embodiment, a further optimization is that the two elastic limit plates 20 are connected by rubber strips 21, and the rubber strips 21 are located above the swing arms 5051, so as to prevent the swing arms 5051 from disengaging between the two elastic limit plates 20.

[0090] Moreover, the swing arms 5051 are iron rods, and magnets 22 for attracting the swing arms 5051 to abut are arranged on the inner sides of the two elastic limit plates 20 close to each other, so as to prevent the swing arms 5051 from moving above the transmission rod 504 due to mechanical vibration or other reasons, resulting in the swing arms 5051 being unable to contact the end of the toggle head 18, thus causing the toggle head 18 to be unable to push the swing arms 5051.

[0091] Compared with providing power for each transmission rod 504 independently, this embodiment is conducive to reducing the hardware cost and the cost of later maintenance and repair.

[0092] In addition, an auxiliary plate placing rack 23 is arranged between the pressure welding head 2 and the grooving mechanism 6. Both ends of the auxiliary plate placing rack 23 are supported on the welding bed 1 through side columns 24. A material placing opening 25 penetrating through the top and the bottom is arranged on the auxiliary plate placing rack 23. The width of the material placing opening 25 is adapted to the thickness of the cross plate. The material placing opening 25 is used to guide the cross plate to accurately insert into the grid plate grooves 26 of a plurality of longitudinal flat steels when falling.

[0093] As is known by common technical knowledge, the present application can be implemented by other embodiments that do not deviate from its spiritual essence or essential features. Therefore, the above-disclosed embodiments are illustrative in all aspects and not exclusive. All changes within the scope of the present application or within the scope equivalent to the present application are encompassed by 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 make the longitudinal flat steel in front of the grooving mechanism (6) contact 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; 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); 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.

2. A welding device for processing steel grating according to claim 1, 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).

3. A welding device for processing steel grating according to claim 2, 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).

4. 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.

5. A welding device for processing steel grating according to claim 4, 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 cutting tool (604) is connected to a slider of the upper linear guide rail (6032).

6. The welding equipment for processing steel grating according to claim 1 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).

7. The welding equipment for processing steel grating according to claim 6 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.

8. The welding equipment for processing steel grating according to claim 1 is 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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