Automatic welding device for steel grating production

Abstract

The present invention discloses an automatic welding device for steel grating production, which belongs to the technical field of steel grating production, and comprises: a base; a positioning mechanism, used to realize the equal spacing of vertical steel discharge and fixation; a discharging mechanism, used to realize the storage and output of cross bars, the discharging mechanism comprises a storage bin and a mandrel, through holes are opened at the bottom of both sides of the storage bin, and the mandrel is arranged in one of the through holes; a delivery mechanism, used to deliver the cross bars, the delivery mechanism comprises a fixed seat, a lifting plate and a cross plate; a welding mechanism, the welding mechanism comprises a welding gun, a movable seat and a lead screw. The present invention can realize accurate and efficient delivery of the cross bars through the cooperation of the discharging mechanism and the delivery mechanism, and realize the fixation of the cross bars after delivery, so as to avoid the deviation of the cross bars affecting the welding accuracy, and at the same time, the welding gun and the vertical steels can be made to be equal in spacing through the cooperation with the welding mechanism and the positioning mechanism, thereby realizing automatic welding and improving the welding rate and welding accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of steel grating production, and in particular to an automatic welding device for steel grating production. Background Art

[0002] Steel grating is a steel product formed by cross-arranging flat steels at a certain distance and through cross bars through welding or pressing. It is mainly used in occasions such as ditch covers, steel structure platform plates, and steel stair treads.

[0003] Steel grating is made of longitudinal flat steel and transverse cross bars welded in an alternating manner. Before welding the steel grating, multiple vertical steels are usually arranged at equal intervals by manpower, and cross bars are placed at equal intervals on the top of the vertical steels, and then welding is performed manually with a hand-held welding gun. This welding method makes the welding quality of the steel grating directly determined by manual labor, resulting in difficulty in ensuring the quality. It is easy for manual operation errors to cause the cross bars to be skewed or there to be offset welding or leaking welding, affecting the quality of the finished steel grating. Therefore, we propose an automatic welding device for steel grating production to solve this problem. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic welding device for steel grating production to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An automatic welding device for steel grating production, comprising:

[0007] Base;

[0008] A positioning mechanism is used to realize the equal spacing of the vertical steel and fixation, the positioning mechanism includes a positioning frame and two driving screws, a front side of the positioning frame is provided with a plurality of slots distributed at equal spacing, the positioning frame is slidably connected to the top of the base, and side plates are fixedly installed on both sides of the positioning frame, and the two side plates are respectively threadedly sleeved on the outer sides of the corresponding driving screws;

[0009] A discharging mechanism, used for realizing storage and output of the crossbar, the discharging mechanism comprises a storage bin and a push rod, through holes are opened at the bottom of both sides of the storage bin, and the push rod is arranged in one of the through holes;

[0010] A delivery mechanism, used for delivering the cross bar, the delivery mechanism comprises a fixed seat, a lifting plate and a cross plate, two cylinders are fixedly installed inside the fixed seat, the output ends of the two cylinders are fixedly connected to the top of the cross plate, and first pressure sensors are fixedly installed on both sides of the bottom of the cross plate, the bottom of the first pressure sensor is movably abutted against the bottom of the lifting plate, and adjustment seats are slidably installed on both sides of the bottom of the lifting plate, and a conveying mechanism is provided at the bottom of the adjustment seat and one side of the storage bin;

[0011] A welding mechanism, comprising a welding gun, a movable seat and a lead screw, first electric push rods are fixedly mounted on both sides of the bottom of the movable seat, the output ends of the two first electric push rods are fixedly connected to the same mounting seat, the welding gun is fixedly mounted in the mounting seat, and a slide groove is provided at the bottom of the lifting plate, the movable seat is slidably connected in the slide groove, and the movable seat is threadedly sleeved on the outside of the lead screw, and the lead screw is rotatably connected in the slide groove.

[0012] Preferably, the conveying mechanism comprises a conveying frame, a conveying motor and two conveying wheels, the two conveying wheels are rotatably connected in the conveying frame, and the front ends of the conveying wheels are fixedly connected with transmission gears, the two transmission gears are meshed, and the conveying motor is fixedly installed on the rear side of the conveying frame, and the output end of the conveying motor is fixedly connected to the rear end of one of the conveying wheels;

[0013] The adjustment seat and the storage bin are respectively fixedly connected to the corresponding conveying frame.

[0014] Preferably, a fixing plate is fixedly installed on one side of the bottom of the storage bin, a second electric push rod is fixedly installed on the bottom of the fixing plate, a connecting rod is fixedly connected to the output end of the second electric push rod, the connecting rod is slidably connected in the fixing plate, the other end of the connecting rod is fixedly connected to a connecting plate, and the connecting plate is fixedly connected to one end of the top rod;

[0015] A plurality of support frames are fixedly connected to the bottom of the storage bin, and the bottom of the support frames is fixedly connected to the top of the base.

[0016] Preferably, the top of the lifting plate is fixedly connected to two vertical rods, the two vertical rods are slidably connected to the horizontal plate, and the tops of the two vertical rods are fixedly connected to the same flat plate, and both sides of the bottom of the flat plate are fixedly connected to compression springs, and the bottom ends of the compression springs are fixedly connected to the top of the horizontal plate;

[0017] The outer side of the flat plate is slidably sleeved with a sliding frame, and the front and rear sides of the sliding frame are hinged with two arc-shaped rods, the bottom ends of the arc-shaped rods are rotatably connected to the outer side of the horizontal plate, and the top of the sliding frame is fixedly connected with two guide rods, and the top of the fixed seat is provided with a sliding hole, and a sliding seat is slidably installed in the sliding hole, and the top of the sliding seat is provided with two guide holes, and the two guide rods are respectively slidably connected in the corresponding guide holes;

[0018] A pressing plate is fixedly installed on one side of the top of the sliding seat, a controller is fixedly installed on the top of the fixed seat, a control button is arranged on one side of the controller, the pressing plate is adapted to the control button, and the output end of the control cylinder is extended when the control button is pressed;

[0019] The front and rear sides of the sliding seat are integrally formed with square protrusions, and the square protrusions are movably abutted against the outer side of the fixed seat;

[0020] A connecting spring is fixedly connected to the other side of the sliding seat, and the other end of the connecting spring is fixedly connected to the side wall of the sliding hole.

[0021] Preferably, two first stepper motors are fixedly installed on the top rear side of the base, the rear ends of the two driving screws are respectively fixedly connected to the output shafts of the corresponding first stepper motors, and the front and rear ends of the outer sides of the driving screws are rotatably sleeved with positioning plates, and the positioning plates are fixedly installed on the top of the base;

[0022] Two guide frames are fixedly installed on the top of the base, and the two side plates are respectively slidably sleeved in the corresponding guide frames.

[0023] Preferably, a driven gear is fixedly sleeved on the outer side of the lead screw, a second stepper motor is fixedly installed on the top of the lifting plate, a driving gear is fixedly connected to the output shaft of the second stepper motor, and the driving gear is meshed with the driven gear;

[0024] A limiting rod is fixedly installed in the slide groove, and the movable seat is slidably sleeved on the outer side of the limiting rod.

[0025] Preferably, the first vertical plate, the second vertical plate and the servo motor are fixedly installed on both sides of the top of the lifting plate, the output shaft of the servo motor is fixedly connected with an adjusting screw, the top of the adjusting seat is fixedly installed with an ear plate, the ear plate is threadedly sleeved on the outside of the adjusting screw, and the adjusting screw is rotatably connected in the corresponding first vertical plate and the second vertical plate;

[0026] A same cross beam is fixedly connected between the first vertical plate and the second vertical plate located on the same side, and the ear plate is slidably sleeved on the outer side of the corresponding cross beam.

[0027] Preferably, two guide plates are fixedly installed inside the positioning frame, two slide rails are fixedly installed on the top of the base, and the guide plates are slidably sleeved on the outer sides of the corresponding slide rails;

[0028] The four corners of the bottom of the fixing seat are fixedly connected with support rods, and the bottom ends of the support rods are fixedly connected to the top of the base.

[0029] Preferably, it also includes a limiting mechanism, which includes a U-shaped rod, a stop plate and a second pressure sensor, the second pressure sensor is fixedly connected between the U-shaped rod and the stop plate, and two transverse holes are opened on one side of the stop plate, the U-shaped rod is slidably connected in the two transverse holes, and the U-shaped rod is fixedly connected to the left side of the conveying frame on the left side.

[0030] Preferably, a U-shaped frame is fixedly installed on the front side of the positioning frame, a plurality of fastening bolts are connected to the internal threads of the U-shaped frame, and abutment plates are rotatably connected to the rear ends of the fastening bolts.

[0031] The beneficial effects of the present invention are:

[0032] 1. In the present invention, the automatic welding device for steel grating production is described, which inserts a plurality of vertical steels into corresponding slots, and makes the grooves of the vertical steels face upwards, and then rotates the fastening bolts, so that the abutment plates are driven to approach the vertical steels while rotating through the threaded engagement with the U-shaped frame, and the vertical steels are pressed and fixed by the abutment between the abutment plates and the vertical steels;

[0033] 2. In the present invention, an automatic welding device for steel grating production is described, which stacks the cross bars in the storage bin in advance, and then starts the second electric push rod to drive the connecting rod, the connecting plate and the push rod to move to the left, and pushes the lowest cross bar out of the through hole on the other side through the push rod, and makes it enter the three conveying frames in turn, and starts the conveying motor to drive the upper conveying wheel to rotate clockwise, and drives the lower conveying wheel to rotate counterclockwise through the meshing between the corresponding transmission gears, thereby conveying the cross bar to the left until the left end of the cross bar contacts the stop plate, and when the second pressure sensor senses that the pressure reaches the preset value, the controller controls the conveying motor to stop running, and controls the output end of the cylinder to extend, and drives the cross plate to move downward, and the cross plate drives the lifting plate to move downward through the first pressure sensor, and the lifting plate drives the two adjustment seats to move downward, so that the conveying frame under the adjustment seat moves downward, thereby pushing the cross bar downward and making it abut against the groove above the vertical steel, thereby realizing accurate and rapid delivery of the cross bar;

[0034] 3. In the present invention, in the automatic welding device for steel grating production, after the cross bar reaches the specified position, the lifting cross plate continues to press down, which will squeeze the first pressure sensor. When the pressure value sensed by the first pressure sensor reaches the preset value, the controller controls the output end of the first electric push rod to extend, thereby driving the mounting seat and the welding gun to move downward, and then starts the welding gun to weld and fix the contact part between the cross bar and the vertical steel, and then controls the first electric push rod to drive the welding gun to move upward, and starts the second stepper motor to drive the driving gear to rotate, and the driving gear drives the lead screw to rotate through the engagement with the driven gear, and the lead screw drives the moving seat to move horizontally through the threaded transmission with the moving seat, and makes the welding gun move to the top of another vertical steel, and then repeats the above steps to weld the contact part between the vertical steel and the cross bar, so that the welding gun is controlled to move and lift at equal intervals through the control of the second stepper motor and the cooperation of the first electric push rod, so as to automatically realize the automatic welding of a single cross bar and multiple vertical steels, and during the welding process, the value displayed by the first pressure sensor can be used to ensure the stable pressing of the cross bar to avoid desoldering;

[0035] 4. In the present invention, the automatic welding device for steel grating production described above, when the welding times of the welding gun reaches the number of vertical steels, starts the cylinder to drive the horizontal plate to move upward, so that the horizontal plate squeezes the compression spring, and applies an upward thrust to the flat plate, vertical rod and lifting plate through the compression spring, thereby applying an upward pulling force to the horizontal rod. Since the horizontal rod is welded and fixed on the vertical steel and cannot move, the upward movement of the horizontal plate will compress the compression spring, and the pulling force on the horizontal rod will increase, and the sliding frame will be driven to move to the left through the arc rod, and the sliding frame will drive the sliding seat to move to the left through the vertical rod, and the sliding seat will drive the pressing plate Move to the left. When the cross bar falls off due to the pulling force, it means that the welding is unstable. When the pressing plate presses the control button, it means that the welding of the cross bar can still be guaranteed to be stable under the action of a sufficiently large pulling force. Then the controller controls the output end of the cylinder to extend, and when the first pressure sensor senses the pressure, the two servo motors are controlled to start and drive the two screws to rotate. The two screws drive the two adjustment seats away from each other through the threaded transmission with the corresponding adjustment seats, and drive the conveying mechanism below them away from each other, so that the two conveying frames are moved out from both ends of the welded cross bar.

[0036] 5. In the present invention, the automatic welding device for steel grating production described above starts the cylinder to control the horizontal plate and the lifting plate to move up to the initial position, and drives the adjustment seat to return to the initial position through the servo motor, then starts the first stepper motor to drive the positioning frame and the multiple vertical steels inside it to move forward and backward, and aligns the welding gun with another groove of the vertical steel, and then repeats the above steps to realize the output, delivery, welding and tensile test of another cross bar, and cooperates with the first stepper motor to control the equal-spaced movement of the positioning frame, thereby realizing the automatic welding of multiple cross bars;

[0037] 6. In the present invention, the automatic welding device for steel grating production can realize accurate and efficient delivery of the cross bar through the cooperation of the discharging mechanism and the delivery mechanism, and fix the cross bar after delivery to avoid the deviation of the cross bar affecting the welding accuracy. At the same time, through the cooperation with the welding mechanism and the positioning mechanism, the equal spacing between the welding gun and the vertical steel can be achieved, thereby realizing automatic welding and improving the welding rate and welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the three-dimensional structure of an automatic welding device for steel grating production proposed by the present invention;

[0039] Figure 2 This is a schematic cross-sectional view of an automatic welding device for producing steel gratings proposed by the present invention;

[0040] Figure 3 for Figure 2 A partial enlarged view of the

[0041] Figure 4 This is a schematic diagram of the three-dimensional structure of the delivery mechanism proposed by the present invention;

[0042] Figure 5 This is a three-dimensional structural schematic diagram of the delivery mechanism proposed by the present invention from another viewing angle;

[0043] Figure 6 It is a cross-sectional structural schematic diagram of the delivery mechanism proposed by the present invention;

[0044] Figure 7 for Figure 6 A partial enlarged view of part A;

[0045] Figure 8 It is a cross-sectional structural schematic diagram of the limiting mechanism proposed by the present invention;

[0046] Fig. 9 for Figure 6 A partial enlarged view of the

[0047] Fig.10 A schematic diagram of the three-dimensional structure of the limiting mechanism proposed by the present invention;

[0048] Fig.11 It is a partial three-dimensional structural schematic diagram of the delivery mechanism proposed by the present invention;

[0049] Fig.12 This is a partial three-dimensional structural schematic diagram of the delivery mechanism proposed by the present invention from another perspective;

[0050] Fig.13 This is a schematic diagram of the three-dimensional structure of the conveying wheel, transmission gear and conveying motor proposed by the present invention;

[0051] Fig.14 It is a three-dimensional structural schematic diagram of the conveying mechanism, the adjusting seat and the adjusting screw rod proposed by the present invention;

[0052] Fig.15 It is a three-dimensional structural schematic diagram of the conveying mechanism proposed by the present invention;

[0053] Fig.16 A schematic diagram of the three-dimensional structure of the positioning mechanism proposed by the present invention;

[0054] Fig.17 A schematic diagram of the three-dimensional structure of the positioning mechanism proposed by the present invention from another viewing angle;

[0055] Fig.18 It is a three-dimensional structural schematic diagram of the discharging mechanism proposed by the present invention;

[0056] Fig.19 This is a schematic diagram of the three-dimensional structure of the push rod, the connecting rod and the second electric push rod proposed by the present invention;

[0057] Fig. 20 It is a schematic side cross-sectional structural diagram of the discharging mechanism proposed by the present invention;

[0058] Fig.21 This is a schematic diagram of the three-dimensional structure of the positioning frame proposed by the present invention;

[0059] Fig. 22 This is a schematic diagram of the three-dimensional structure of the combined state of the vertical steel and the horizontal rod proposed by the present invention.

[0060] In the figure: 1, base; 101, slide rail; 2, positioning frame; 201, side plate; 202, guide frame; 203, driving screw; 204, positioning plate; 205, first stepper motor; 206, U-shaped frame; 207, abutment plate; 208, fastening bolt; 209, guide plate; 3, fixed seat; 301, support rod; 302, cylinder; 4, lifting plate; 5, storage bin; 501, support frame; 502, push rod; 503, connecting plate; 504, fixed plate; 505, second electric push rod; 506, connecting rod; 6, horizontal plate; 601, compression spring; 602, flat plate; 603, first pressure sensor; 7, sliding seat; 701, pressing plate; 702, control button; 703, guide rod; 704, connecting spring; 705, slide frame; 706, arc rod; 8, welding gun; 801, mounting seat; 802, first electric push rod; 803, moving seat; 804, limit rod; 805, lead screw; 806, driven gear; 807, driving gear; 808, second stepping motor; 9, conveying frame; 901, conveying wheel; 902, transmission gear; 903, conveying motor; 10, adjusting seat; 11, first vertical plate; 12, second vertical plate; 13, ear plate; 14, adjusting screw; 15, crossbeam; 16, servo motor; 17, U-shaped rod; 18, second pressure sensor; 19, stop plate. DETAILED DESCRIPTION

[0061] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0062] Reference Figure 1 - Fig. 22 , an automatic welding device for steel grating production, comprising:

[0063] Base 1;

[0064] The positioning mechanism is used to realize the equal spacing of the vertical steel and fixation. The positioning mechanism includes a positioning frame 2 and two driving screws 203. The front side of the positioning frame 2 is provided with a plurality of slots distributed at equal intervals. The positioning frame 2 is slidably connected to the top of the base 1, and side plates 201 are fixedly installed on both sides of the positioning frame 2. The two side plates 201 are respectively threadedly sleeved on the outer sides of the corresponding driving screws 203;

[0065] The discharging mechanism is used to realize the storage and output of the crossbar, and the discharging mechanism includes a storage bin 5 and a push rod 502. Through holes are opened at the bottom of both sides of the storage bin 5, and the push rod 502 is arranged in one of the through holes;

[0066] A delivery mechanism is used for delivering the cross bar. The delivery mechanism includes a fixed seat 3, a lifting plate 4 and a cross plate 6. Two cylinders 302 are fixedly installed inside the fixed seat 3. The output ends of the two cylinders 302 are fixedly connected to the top of the cross plate 6, and first pressure sensors 603 are fixedly installed on both sides of the bottom of the cross plate 6. The bottom of the first pressure sensor 603 is movably abutted against the bottom of the lifting plate 4, and adjustment seats 10 are slidably installed on both sides of the bottom of the lifting plate 4. A conveying mechanism is provided at the bottom of the adjustment seat 10 and one side of the storage bin 5;

[0067] The welding mechanism includes a welding gun 8, a movable seat 803 and a lead screw 805. First electric push rods 802 are fixedly installed on both sides of the bottom of the movable seat 803. The output ends of the two first electric push rods 802 are fixedly connected to the same mounting seat 801. The welding gun 8 is fixedly installed in the mounting seat 801, and a sliding groove is provided at the bottom of the lifting plate 4. The movable seat 803 is slidably connected in the sliding groove, and the movable seat 803 is threadedly sleeved on the outer side of the lead screw 805, and the lead screw 805 is rotatably connected in the sliding groove.

[0068] Among them, the conveying mechanism includes a conveying frame 9, a conveying motor 903 and two conveying wheels 901. The two conveying wheels 901 are both rotatably connected in the conveying frame 9, and the front end of the conveying wheel 901 is fixedly connected with a transmission gear 902. The two transmission gears 902 are meshed, and the conveying motor 903 is fixedly installed on the rear side of the conveying frame 9. The output end of the conveying motor 903 is fixedly connected to the rear end of one of the conveying wheels 901; thereby facilitating the driving of the conveying wheel 901 to rotate, and circular holes are opened on both sides of the conveying frame 9, and the adjustment seat 10 and the storage bin 5 are respectively fixedly connected to the corresponding conveying frame 9.

[0069] In this embodiment, a fixing plate 504 is fixedly installed on one side of the bottom of the storage bin 5, a second electric push rod 505 is fixedly installed on the bottom of the fixing plate 504, a connecting rod 506 is fixedly connected to the output end of the second electric push rod 505, the connecting rod 506 is slidably connected in the fixing plate 504, the other end of the connecting rod 506 is fixedly connected to a connecting plate 503, the connecting plate 503 is fixedly connected to one end of the top rod 502, so as to facilitate the horizontal movement of the top rod 502 to push out the cross bar; a plurality of support frames 501 are fixedly connected to the bottom of the storage bin 5, and the bottom of the support frame 501 is fixedly connected to the top of the base 1 to achieve stable support for the storage bin 5.

[0070] In this embodiment, the top of the lifting plate 4 is fixedly connected to two vertical rods, and the two vertical rods are slidably connected in the horizontal plate 6, and the tops of the two vertical rods are fixedly connected to the same flat plate 602, and the bottom sides of the flat plate 602 are fixedly connected to compression springs 601, and the bottom ends of the compression springs 601 are fixedly connected to the top of the horizontal plate 6, so as to guide and reset the lifting plate 4; the outer side of the flat plate 602 is slidably sleeved with a sliding frame 705, and the front and rear sides of the sliding frame 705 are hinged with two arc rods 706, and the bottom ends of the arc rods 706 are rotatably connected to the outer side of the horizontal plate 6, and the top of the sliding frame 705 is fixedly connected to two guide rods 703, and the top of the fixed seat 3 is provided with a sliding hole, and a sliding seat 7 is slidably installed in the sliding hole, and the top of the sliding seat 7 is provided with two guide holes, and the two guide rods 703 are respectively slidably connected in the corresponding guide holes to realize the synchronous horizontal movement of the sliding seat 7 and the sliding frame 705;

[0071] A pressing plate 701 is fixedly installed on one side of the top of the sliding seat 7, a controller is fixedly installed on the top of the fixed seat 3, a control button 702 is arranged on one side of the controller, the pressing plate 701 is adapted to the control button 702, and the output end of the control cylinder 302 is extended when the control button 702 is pressed; square protrusions are integrally formed on both the front and rear sides of the sliding seat 7, and the square protrusions are movably abutted against the outer side of the fixed seat 3, thereby guiding the horizontal movement of the sliding seat 7; a connecting spring 704 is fixedly connected to the other side of the sliding seat 7, and the other end of the connecting spring 704 is fixedly connected to the side wall of the sliding hole , thereby resetting the sliding seat 7, two first stepper motors 205 are fixedly installed on the top rear side of the base 1, the rear ends of the two driving screw rods 203 are respectively fixedly connected to the output shafts of the corresponding first stepper motors 205, and the front and rear ends of the outer sides of the driving screw rods 203 are rotatably sleeved with positioning plates 204, and the positioning plates 204 are fixedly installed on the top of the base 1 to realize the rotation positioning of the driving screw rods 203; two guide frames 202 are fixedly installed on the top of the base 1, and the two side plates 201 are respectively slidably sleeved in the corresponding guide frames 202 to guide the movement of the side plates 201.

[0072] In this embodiment, a driven gear 806 is fixedly sleeved on the outer side of the lead screw 805, a second stepper motor 808 is fixedly installed on the top of the lifting plate 4, and a driving gear 807 is fixedly connected to the output shaft of the second stepper motor 808, and the driving gear 807 is meshed with the driven gear 806 to facilitate driving the lead screw 805 to rotate;

[0073] A limit rod 804 is fixedly installed in the slide slot, and the moving seat 803 is slidably sleeved on the outer side of the limit rod 804, so as to guide the moving seat 803. The first vertical plate 11, the second vertical plate 12 and the servo motor 16 are fixedly installed on both sides of the top of the lifting plate 4. The output shaft of the servo motor 16 is fixedly connected with an adjusting screw 14. The top of the adjusting seat 10 is fixedly installed with an ear plate 13, which is threadedly sleeved on the outer side of the adjusting screw 14, and the adjusting screw 14 is rotatably connected in the corresponding first vertical plate 11 and the second vertical plate 12 to rotate and position the adjusting screw 14.

[0074] A same crossbeam 15 is fixedly connected between the first vertical plate 11 and the second vertical plate 12 located on the same side, and the ear plate 13 is slidably sleeved on the outer side of the corresponding crossbeam 15 to guide the ear plate 13. Two guide plates 209 are fixedly installed inside the positioning frame 2, and two slide rails 101 are fixedly installed on the top of the base 1. The guide plates 209 are slidably sleeved on the outer sides of the corresponding slide rails 101 to guide the positioning frame 2 to move forward and backward; the four corners of the bottom of the fixed seat 3 are fixedly connected with support rods 301, and the bottom ends of the support rods 301 are fixedly connected to the top of the base 1 to support the fixed seat 3.

[0075] In this embodiment, a limiting mechanism is also included, which includes a U-shaped rod 17, a stop plate 19 and a second pressure sensor 18. The second pressure sensor 18 is fixedly connected between the U-shaped rod 17 and the stop plate 19, and two transverse holes are opened on one side of the stop plate 19. The U-shaped rod 17 is slidably connected in the two transverse holes, and the U-shaped rod 17 is fixedly connected to the left side of the conveying frame 9 on the left side, thereby ensuring that the cross bar reaches the specified position.

[0076] In this embodiment, a U-shaped frame 206 is fixedly installed on the front side of the positioning frame 2. The U-shaped frame 206 is internally threaded with multiple fastening bolts 208. The rear ends of the fastening bolts 208 are rotatably connected to abutment plates 207, thereby facilitating the fixation of the vertical steel.

[0077] In this embodiment, when in use, multiple vertical steels are inserted into corresponding slots with the grooves of the vertical steels facing upwards, and then the fastening bolts 208 are rotated so that the abutment plates 207 are driven close to the vertical steels while rotating through the threaded engagement with the U-shaped frame 206, and the vertical steels are pressed and fixed by the abutment of the abutment plates 207 and the vertical steels;

[0078] By stacking the crossbars in the storage bin 5 in advance, and then starting the second electric push rod 505, driving the connecting rod 506, the connecting plate 503 and the top rod 502 to move to the left, the bottom crossbar is pushed out from the through hole on the other side through the top rod 502, and is sequentially entered into the three conveying frames 9, and the conveying motor 903 is started to drive the upper conveying wheel 901 to rotate clockwise, and the meshing between the corresponding transmission gears 902 drives the lower conveying wheel 901 to rotate counterclockwise, so that the crossbar is conveyed to the left until the left end of the crossbar When the second pressure sensor 18 contacts the stop plate 19 and senses that the pressure reaches a preset value, the controller controls the conveying motor 903 to stop running, and controls the output end of the cylinder 302 to extend, and drives the horizontal plate 6 to move downward, and the horizontal plate 6 drives the lifting plate 4 to move downward through the first pressure sensor 603, and the lifting plate 4 drives the two adjustment seats 10 to move downward, so that the conveying frame 9 under the adjustment seat 10 moves downward, thereby pushing the cross bar downward and making it abut against the groove above the vertical steel, thereby realizing accurate and rapid delivery of the cross bar;

[0079] After the cross bar reaches the specified position, the lifting plate 6 continues to press down, which will squeeze the first pressure sensor 603. When the pressure value sensed by the first pressure sensor 603 reaches the preset value, the controller controls the output end of the first electric push rod 802 to extend, thereby driving the mounting seat 801 and the welding gun 8 to move downward, and then starts the welding gun 8 to weld and fix the contact part between the cross bar and the vertical steel. Then, the first electric push rod 802 is controlled to drive the welding gun 8 to move upward, and the second stepper motor 808 is started to drive the driving gear 807 to rotate. The driving gear 807 is meshed with the driven gear 806 to bring The movable lead screw 805 rotates, and the lead screw 805 drives the movable seat 803 to move horizontally through the threaded transmission with the movable seat 803, and moves the welding gun 8 to the top of another vertical steel, and then repeats the above steps to weld the contact part between the vertical steel and the cross bar, so that the welding gun 8 is controlled by the second stepping motor 808 and the first electric push rod 802 to control the equal-spaced translation and lifting of the welding gun 8, so as to automatically realize the automatic welding of a single cross bar and multiple vertical steels, and during the welding process, the value displayed by the first pressure sensor 603 can ensure the stable pressing of the cross bar to avoid desoldering;

[0080] When the welding times of the welding gun 8 reach the number of vertical steels, the cylinder 302 is started to drive the horizontal plate 6 to move upward, so that the horizontal plate 6 squeezes the compression spring 601, and applies an upward thrust to the flat plate 602, the vertical rod and the lifting plate 4 through the compression spring 601, thereby applying an upward pulling force to the horizontal rod. Since the horizontal rod is welded and fixed on the vertical steel and cannot move, the upward movement of the horizontal plate 6 will compress the compression spring 601, and the tension on the horizontal rod will increase, and the sliding frame 705 will be driven to move to the left through the arc rod 706. The sliding frame 705 drives the sliding seat 7 to move to the left through the vertical rod, and the sliding seat 7 drives the pressing plate 701 to move to the left. When the cross bar falls off due to the pulling force, it means that the welding is unstable. When the pressing plate 701 presses the control button 702, it means that the welding of the cross bar can still be guaranteed to be stable under the action of a sufficiently large pulling force. Then, the controller controls the output end of the cylinder 302 to extend, and controls the two servo motors 16 to start when the first pressure sensor 603 senses the pressure, and drives the two screws to rotate. The two screws drive the two adjustment seats 10 away from each other through the threaded transmission with the corresponding adjustment seats 10, and drive the conveying mechanism below them away from each other, so that the two conveying frames 9 are moved out from both ends of the welded cross bar.

[0081] By starting the cylinder 302, the horizontal plate 6 and the lifting plate 4 are controlled to move up to the initial position, and the servo motor 16 drives the adjustment seat 10 to return to the initial position, and then the first stepper motor 205 is started to drive the positioning frame 2 and the multiple vertical steels inside it to move back and forth, and the welding gun 8 is aligned with the other groove of the vertical steel, and then the above steps are repeated to realize the output, placement, welding and tensile test of another cross bar, and cooperate with the first stepper motor 205 to control the equal-interval movement of the positioning frame 2, so as to realize the automatic welding of multiple cross bars.

[0082] The above is a detailed introduction to an automatic welding device for steel grating production provided by the present invention. Specific embodiments are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An automatic welding device for steel grating production, characterized in that: include: Base (1); A positioning mechanism is used to realize the equal spacing of the vertical steel and fixation, the positioning mechanism comprising a positioning frame (2) and two driving screw rods (203), the front side of the positioning frame (2) is provided with a plurality of slots distributed at equal spacing, the positioning frame (2) is slidably connected to the top of the base (1), and side plates (201) are fixedly installed on both sides of the positioning frame (2), and the two side plates (201) are respectively threadedly sleeved on the outer sides of the corresponding driving screw rods (203); A discharging mechanism, used for realizing storage and output of the crossbar, the discharging mechanism comprising a storage bin (5) and a push rod (502), through holes are provided at the bottom of both sides of the storage bin (5), and the push rod (502) is arranged in one of the through holes; A delivery mechanism, used for delivering a cross bar, the delivery mechanism comprising a fixed seat (3), a lifting plate (4) and a cross plate (6), two cylinders (302) are fixedly installed inside the fixed seat (3), the output ends of the two cylinders (302) are fixedly connected to the top of the cross plate (6), and first pressure sensors (603) are fixedly installed on both sides of the bottom of the cross plate (6), the bottom of the first pressure sensor (603) is movably abutted against the bottom of the lifting plate (4), and adjustment seats (10) are slidably installed on both sides of the bottom of the lifting plate (4), and a conveying mechanism is provided at the bottom of the adjustment seat (10) and one side of the storage bin (5); A welding mechanism, the welding mechanism comprising a welding gun (8), a movable seat (803) and a lead screw (805), first electric push rods (802) are fixedly installed on both sides of the bottom of the movable seat (803), the output ends of the two first electric push rods (802) are fixedly connected to the same mounting seat (801), the welding gun (8) is fixedly installed in the mounting seat (801), and a sliding groove is provided at the bottom of the lifting plate (4), the movable seat (803) is slidably connected in the sliding groove, and the The movable seat (803) is threadedly sleeved on the outer side of the lead screw (805), and the lead screw (805) is rotatably connected in the slide groove. The top of the lifting plate (4) is fixedly connected to two vertical rods, and the two vertical rods are slidably connected in the horizontal plate (6), and the tops of the two vertical rods are fixedly connected to the same flat plate (602), and the bottom sides of the flat plate (602) are fixedly connected to compression springs (601), and the bottom end of the compression spring (601) is fixedly connected to the top of the horizontal plate (6); The outer side of the flat plate (602) is slidably sleeved with a sliding frame (705), and the front and rear sides of the sliding frame (705) are hinged with two arc-shaped rods (706), and the bottom ends of the arc-shaped rods (706) are rotatably connected to the outer side of the horizontal plate (6), and the top of the sliding frame (705) is fixedly connected with two guide rods (703), and the top of the fixed seat (3) is provided with a sliding hole, and a sliding seat (7) is slidably installed in the sliding hole, and the top of the sliding seat (7) is provided with two guide holes, and the two guide rods (703) are respectively slidably connected in the corresponding guide holes; A pressing plate (701) is fixedly mounted on one side of the top of the sliding seat (7), a controller is fixedly mounted on the top of the fixed seat (3), a control button (702) is arranged on one side of the controller, the pressing plate (701) is adapted to the control button (702), and when the control button (702) is pressed, the output end of the control cylinder (302) is extended; The front and rear sides of the sliding seat (7) are integrally formed with square protrusions, and the square protrusions are movably abutted against the outer side of the fixed seat (3); A connecting spring (704) is fixedly connected to the other side of the sliding seat (7), and the other end of the connecting spring (704) is fixedly connected to the side wall of the sliding hole.

2. The automatic welding device for steel grating production according to claim 1 is characterized in that: The conveying mechanism comprises a conveying frame (9), a conveying motor (903) and two conveying wheels (901), the two conveying wheels (901) are both rotatably connected in the conveying frame (9), and the front ends of the conveying wheels (901) are fixedly connected with transmission gears (902), the two transmission gears (902) are meshed with each other, and the conveying motor (903) is fixedly installed on the rear side of the conveying frame (9), and the output end of the conveying motor (903) is fixedly connected to the rear end of one of the conveying wheels (901); The adjustment seat (10) and the storage bin (5) are respectively fixedly connected to the corresponding conveying frame (9).

3. The automatic welding device for steel grating production according to claim 1 is characterized in that: A fixing plate (504) is fixedly installed on one side of the bottom of the storage bin (5), a second electric push rod (505) is fixedly installed on the bottom of the fixing plate (504), a connecting rod (506) is fixedly connected to the output end of the second electric push rod (505), the connecting rod (506) is slidably connected in the fixing plate (504), the other end of the connecting rod (506) is fixedly connected to a connecting plate (503), and the connecting plate (503) is fixedly connected to one end of the top rod (502); A plurality of support frames (501) are fixedly connected to the bottom of the storage bin (5), and the bottom of the support frames (501) is fixedly connected to the top of the base (1).

4. The automatic welding device for steel grating production according to claim 1 is characterized in that: Two first stepper motors (205) are fixedly mounted on the rear side of the top of the base (1); the rear ends of the two driving screw rods (203) are respectively fixedly connected to the output shafts of the corresponding first stepper motors (205); and the front and rear ends of the outer sides of the driving screw rods (203) are rotatably sleeved with positioning plates (204); the positioning plates (204) are fixedly mounted on the top of the base (1); Two guide frames (202) are fixedly mounted on the top of the base (1), and the two side panels (201) are respectively slidably sleeved in the corresponding guide frames (202).

5. The automatic welding device for steel grating production according to claim 1 is characterized in that: A driven gear (806) is fixedly sleeved on the outer side of the lead screw (805), a second stepping motor (808) is fixedly installed on the top of the lifting plate (4), a driving gear (807) is fixedly connected to the output shaft of the second stepping motor (808), and the driving gear (807) is meshed with the driven gear (806); A limiting rod (804) is fixedly installed in the slide groove, and the movable seat (803) is slidably sleeved on the outer side of the limiting rod (804).

6. The automatic welding device for steel grating production according to claim 1 is characterized in that: A first vertical plate (11), a second vertical plate (12) and a servo motor (16) are fixedly installed on both sides of the top of the lifting plate (4); an adjusting screw (14) is fixedly connected to the output shaft of the servo motor (16); an ear plate (13) is fixedly installed on the top of the adjusting seat (10); the ear plate (13) is threadedly sleeved on the outside of the adjusting screw (14), and the adjusting screw (14) is rotatably connected in the corresponding first vertical plate (11) and second vertical plate (12); A common crossbeam (15) is fixedly connected between the first vertical plate (11) and the second vertical plate (12) located on the same side, and the ear plate (13) is slidably sleeved on the outer side of the corresponding crossbeam (15).

7. The automatic welding device for steel grating production according to claim 1 is characterized in that: Two guide plates (209) are fixedly installed inside the positioning frame (2), and two slide rails (101) are fixedly installed on the top of the base (1), and the guide plates (209) are slidably sleeved on the outer sides of the corresponding slide rails (101); The four corners of the bottom of the fixing seat (3) are fixedly connected to support rods (301), and the bottom end of the support rod (301) is fixedly connected to the top of the base (1).

8. The automatic welding device for steel grating production according to claim 2 is characterized in that: It also includes a limiting mechanism, which includes a U-shaped rod (17), a stop plate (19) and a second pressure sensor (18), wherein the second pressure sensor (18) is fixedly connected between the U-shaped rod (17) and the stop plate (19), and two transverse holes are opened on one side of the stop plate (19), the U-shaped rod (17) is slidably connected in the two transverse holes, and the U-shaped rod (17) is fixedly connected to the left side of the conveying frame (9) located on the left side.

9. The automatic welding device for steel grating production according to claim 1 is characterized in that: A U-shaped frame (206) is fixedly mounted on the front side of the positioning frame (2), a plurality of fastening bolts (208) are internally threadedly connected to the U-shaped frame (206), and abutment plates (207) are rotatably connected to the rear ends of the fastening bolts (208).

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