Nail feeding assembly and modular track moving stud welding device comprising same

Abstract

The invention relates to the technical field of stud welding, in particular to a stud feeding assembly and a modular track moving stud welding device comprising the same, the stud feeding assembly comprises a rotary driving unit, a linear driving unit and a stud containing unit, the rotary driving unit can drive the linear driving unit and the stud containing unit to rotate, and the linear driving unit can drive the stud containing unit to rotate. The linear driving assembly can drive the stud containing unit to move linearly. By the adoption of the technical scheme, the stud containing unit can feed studs to the welding gun at any point of the plane through rotation and linear motion, and efficient stud loading of the welding gun at different positions can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of stud welding, and particularly relates to a nail feeding assembly and a modular crawler mobile stud welding device including the assembly. Background Art

[0002] Stud welding is to weld a stud similar to a columnar shape onto a flat plate with a large current, as long as the area of the flat plate is larger than the welding area of the stud. The technology is reliable and mature, and is applied to welding studs, heat dissipation nails, automotive screws, bolts, etc. in steel structures. Automatic welding can be achieved when the fixed workpiece or the operating environment is relatively flat.

[0003] On construction sites, it is usually necessary to weld studs on steel structures such as corrugated steel or steel bar truss floor slabs. The load-bearing capacity of corrugated steel or steel bar truss floor slabs without poured concrete is relatively small. Before welding, a straight line consistent with the direction of the steel beam is manually marked first, and the studs are welded according to the straight line. Due to the presence of the floor slab in the middle, experienced welders are required to achieve penetration welding. For various reasons, manual welding is relatively slow, and the concrete pump truck needs to operate at night in the city, and the calculated time cannot be changed. Each welding needs to be completed immediately. Solving the problem of automatic welding of floor slab studs is an urgent task. Summary of the Invention

[0004] The present invention provides a nail feeding assembly and a modular crawler mobile stud welding device including the assembly to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solutions: A nail feeding assembly includes a rotary drive unit, a linear drive unit, and a stud accommodating unit. The rotary drive unit can drive the linear drive unit and the stud accommodating unit to rotate, and the linear drive assembly can drive the stud accommodating unit to move linearly. By adopting the above technical solution, the stud accommodating unit can feed nails to the welding torch at any point on the plane through rotation and linear movement, and high-efficiency nail loading can be achieved at different positions of the welding torch.

[0006] Further, the rotary drive unit includes a rotary drive motor and a guide rail frame, the guide rail frame is fixedly installed at the output end of the rotary drive motor, the linear drive unit includes a linear drive motor and a gear sleeved on the output end of the linear drive motor, the stud accommodating unit includes a nail receiving hook and a cross bar, the cross bar is slidably connected to the guide rail frame, a rack is fixed on the cross bar, and the gear meshes with the rack. By adopting the above technical solution, the nail feeding assembly has a compact structure and is simple and efficient to implement.

[0007] Furthermore, the nail receiving hook is integrally U-shaped. Two convex corners are provided at the open end of the nail receiving hook. The non-open end of the nail receiving hook is fixedly connected to the cross bar. A stud clamping unit is provided at the upper end of the nail receiving hook. The stud clamping unit is a cylinder clamping mechanism (or a motor clamping mechanism). The cylinder clamping mechanism includes a cylinder, a connecting arm and a chuck. The connecting member includes a connecting arm, a connecting arm and a connecting shaft. The connecting arm and the connecting arm can rotate around the connecting shaft. The connecting arm is hinged to the end of the piston rod of the cylinder. The connecting arm is fixedly connected to the chuck. A cylinder cover is sleeved outside the cylinder. The connecting shaft is fixedly connected to the cylinder cover. The cylinder cover is fixedly connected to the upper end of the cross bar through a connecting plate. By adopting the above technical solution, after the stud falls into the nail receiving hook, the stud clamping unit can clamp the stud to prevent the stud from flying out during rotation.

[0008] Furthermore, a stud induction device is connected to the lower end of the nail receiving hook. A sensor connecting member is connected to the bottom surface of one end of the cross bar connecting the nail receiving hook. The connecting member is connected to a sensor mounting plate. The stud induction device is mounted on the sensor mounting plate. By adopting the above technical solution, after the stud induction device senses that the stud has fallen into the nail receiving hook, the stud clamping unit can clamp the stud.

[0009] A modular crawler mobile stud welding device includes any one of the above-mentioned nail feeding assemblies, and also includes a crawler chassis vehicle, a longitudinal axis module, a transverse axis module, a welding torch and a power supply mechanism. The longitudinal axis module and the power supply mechanism are arranged on the bottom plate. The transverse axis module is longitudinally slidably connected to the longitudinal axis module. The welding torch is horizontally slidably arranged on the transverse axis module. The number of welding torches is 1 or more, which is specifically determined according to the number of rows of welding studs required. By adopting the above technical solution, the welding torch can accurately feed nails at different positions of the nail feeding assembly on the transverse axis module.

[0010] Furthermore, the crawler chassis vehicle includes a crawler, a driving gear, a driven gear, a driven roller, a bottom plate and a crawler driving motor. The crawler is sleeved outside the driving gear, the driven gear and the driven roller. The driving gear and the driven gear are located on both sides inside the crawler, and the driven roller is located at the center inside the crawler. A support beam is connected to one side of the axes of the driving gear, the driven gear and the driven roller. Support columns are provided on the support beam. The bottom plate is connected to the support columns. The longitudinal axis module, the power supply mechanism and the nail feeding assembly are all mounted on the bottom plate. A longitudinal axis slider is provided on the longitudinal axis module. The transverse axis module is connected to the longitudinal axis slider. A transverse axis slider is provided on the transverse axis module. The welding torch is connected to the transverse axis slider. By adopting the above technical solution, the crawler has a large friction force with the ground, does not slip, has a stable center of gravity, strong load-bearing capacity, and has off-road capabilities, and can adapt to various complex terrains for automated welding operations.

[0011] Further, it further includes a stud magazine unit, the stud magazine unit includes a magazine switch, a magazine cavity and a magazine bracket. The magazine cavity is composed of two parallel long strips, and the magazine cavity is inclined with the front end lower and the rear end higher. The magazine bracket includes a first bracket and a second bracket. The front side of the magazine cavity is suspended on the first bracket, and the rear side of the magazine cavity is suspended on the second bracket. A vibration motor is provided on the first bracket, and the front end of the magazine cavity is suspended under the vibration motor. The magazine switch is arranged on the bottom plate. The magazine switch includes a switch motor, the end of the motor shaft of the switch motor is arranged upward, and a second gear is provided at the end. Parallel racks engaged with the second gear are provided on both sides of the second gear. In the initial state, the rack closer to the nail feeding assembly is located at the end of the magazine cavity to clamp the stud, and the rack away from the nail feeding assembly is located outside the magazine cavity. The distance between the parallel racks is adapted to the diameter of the stud head. By adopting the above technical solution, when the nail feeding fork picks up the nail, the stud falls into the nail feeding fork in the magazine cavity under the action of gravity and the vibration of the vibration motor. The output end switch of the magazine cavity is controlled by the magazine switch, and the magazine switch controls that only one stud falls each time the nail is picked up.

[0012] Further, it further includes a laser receiving plate for detecting the straight driving of the welding vehicle. The laser receiving plate is arranged on the bottom plate of the welding vehicle. The laser receiving plate includes a first laser receiver, a second laser receiver and a third laser receiver arranged in parallel and side by side from left to right. The second laser receiver is located in the center, and the first laser receiver and the third laser receiver are located on both sides of the second laser receiver. A laser lamp for emitting straight laser is fixed at a point outside the welding vehicle. By adopting the above technical solution, it is possible to detect whether the welding vehicle is driving straight in a simple way, and when it is detected that there is an offset, it can be corrected in time.

[0013] Further, it is characterized in that it further includes a safety device. The safety device includes a forward and reverse radar, a ground radar, a safety frame, a safety rope, a lighting lamp and a turning indicator light. The forward and reverse radar and the ground radar are installed on the front and rear sides of the bottom plate. The safety frame is installed on the bottom plate. The safety frame is provided with an emergency stop switch, a safety indicator light and a suspension ring. The safety ropes are arranged on both sides outside the welding vehicle, and an emergency stop switch is connected to the safety ropes. The lighting lamp and the turning indicator light are installed on the front and rear sides of the welding vehicle. By adopting the above technical solution, a series of installation devices are set up to maximize the safety of construction site construction.

[0014] Further, the welding torch includes a motor, a lead screw, a lead screw slider, a main shaft, a porcelain ring clamping unit, and a stud clamping unit. The motor shaft of the motor is connected to the lead screw to drive the lead screw to rotate. The lead screw slider is threadedly connected to the lead screw. The slider can move up and down on the lead screw. The main shaft is hung on the lead screw slider. The main shaft and the lead screw slider can slide relative to each other. The upper end of the stud clamping unit is fixedly connected to the lower end of the main shaft. By adopting the above technical solution, the slider and the main shaft can slide relative to each other. When the main shaft is lifted by the stud, the slider remains stationary. When the slider rises, it first rises to contact the main shaft connecting plate, and then drives the main shaft and the stud to rise, ensuring that the arc ignition distances of studs with and without arc ignition points are the same, and the combustion spaces are consistent, improving the uniformity of welding quality.

[0015] Further, it further includes a mobile stud loader, which includes a crawler moving mechanism, a stud porcelain ring assembly unit, and a stud storage cavity. The stud porcelain ring assembly unit includes a stud pusher, a stud flow channel, a vibrating bowl, a porcelain ring channel, an electric fixture, and an output channel. The input end of the stud flow channel is connected to the stud pusher. The input end of the porcelain ring channel is connected to the vibrating bowl. The output end of the porcelain ring channel is connected to the input end of the output channel and conveys the porcelain ring to the input end of the output channel. The electric fixture clamps the stud at the output end of the stud flow channel and assembles and cooperates with the porcelain ring at the input end of the output channel. The output end of the output channel is connected to the input end of the stud storage cavity. The output end (261) of the stud storage cavity is slightly higher than the input end of the magazine cavity (71). After the studs in the magazine cavity are used up, the movable crawler chassis can be moved close to the mobile stud loader, and the output end of the stud storage cavity can be aligned with the input end of the magazine cavity to replenish the studs in the magazine cavity. By adopting the above technical solution, the magazine cavity can be quickly replenished with studs after the studs are used up.

[0016] The modular crawler mobile stud welding device of the present invention uses a crawler to move on the floor slab with sensitive movement, small volume, light weight, simple and reliable structure, simple programming, and can be constructed in all corners of the construction site. The spacing and width of the welding torches are adjustable, laser is used for position positioning, linear walking, there is a remote control device to weld studs at the edge of the floor slab, multiple torches can be welded at one time, and an average of one stud can be welded in a few seconds, with very high efficiency, suitable for stud welding operations on large-area working surfaces such as bridges or highway bridges.

[0017] To make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following specific preferred embodiments are given in conjunction with the accompanying drawings and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Appendix Figure 1 : Front perspective view of a modular tracked mobile stud welding device; Appendix Figure 2 : Rear perspective view of a modular tracked mobile stud welding device; Appendix Figure 3 : Schematic diagram of a nail feeding assembly for a modular tracked mobile stud welding device; Appendix Figure 4 : Exploded view of a nail feeding assembly for a modular tracked mobile stud welding device; Appendix Figure 5 : Schematic diagram of a connecting member for a modular tracked mobile stud welding device; Appendix Figure 6 : Internal schematic diagram of a nail feeding assembly for a modular tracked mobile stud welding device; Appendix Figure 7 Appendix Figure 6 Enlarged schematic diagram at position A of Appendix Figure 8 : Exploded view of a motor clamping mechanism for a modular tracked mobile stud welding device; Appendix Figure 9 : Structural diagram of a motor clamping mechanism for a modular tracked mobile stud welding device; Appendix Figure 10 : Internal schematic diagram of a welding torch for a modular tracked mobile stud welding device; Appendix Figure 11 : External schematic diagram of a welding torch for a modular tracked mobile stud welding device; Appendix Figure 12 Appendix Figure 11 Enlarged schematic diagram at position A of Appendix Figure 13 : Operating state diagram of a modular tracked mobile stud welding device; Appendix Figure 14 : Perspective Figure 1 of a tracked chassis vehicle for a modular tracked mobile stud welding device; Appendix Figure 15 : Perspective Figure 2 of a tracked chassis vehicle for a modular tracked mobile stud welding device; Appendix Figure 16: Three-dimensional view of a crawler chassis vehicle for a modular crawler mobile stud welding device Figure 3 ; Attached Figure 17 : Three-dimensional view of a crawler chassis vehicle for a modular crawler mobile stud welding device Figure 4 ; Attached Figure 18 : Three-dimensional view of a mobile studding machine for a modular crawler mobile stud welding device Figure 1 ; Attached Figure 19 : Attached Figure 18 : Enlarged schematic view of part A in ; Attached Figure 20 : Three-dimensional view of a mobile studding machine for a modular crawler mobile stud welding device Figure 2 ; Attached Figure 21 : Attached Figure 20 : Enlarged schematic view of part A in .

[0020] Reference Numerals: 1109, safety frame; 1131, first receiver; 1132, second receiver; 1133, third receiver; 1134, laser lamp; 113, battery; 114, emergency stop switch; 115, radar module; 116, turning indicator light; 117, lighting lamp; 118, safety indicator light; 119, lifting ring; 1110 safety rope; 1111, round ring; 11, crawler belt; 12, driving gear; 13, driven gear; 14, driven roller; 16, crawler belt driving motor; 17, support beam; 18, support column; 2, bottom plate; 20, stud pusher; 21, stud runner; 22, vibrating bowl; 23, ceramic ring runner; 24, electric fixture; 25, output runner; 26, stud storage cavity; 261, stud storage cavity input end; 262, storage cavity output end; 263, stud switch motor; 264, switch gear; 265, rack; 3, longitudinal axis module; 4, transverse axis module; 31, longitudinal axis slider; 41, transverse axis slider; 5, welding torch; 51, motor; 52, lead screw; 53, lead screw slider; 54, main shaft; 56, ceramic ring clamping unit; 55, stud clamping unit; 581, clamping motor; 582, clamping lead screw; 583, nut; 584, nut position limiter; nail feeding assembly 672, magazine switch; 71, magazine cavity; 731, first bracket; 732, second bracket; 734, vibration motor; 721, switch motor; 722, second gear; 723, parallel rack; 91, nail feeding fork; 911, cross bar; 912, nail receiving hook; 913, stud clamping unit; 9131, cylinder; 9132, connecting piece; 9133, chuck; 9135, first connecting arm; 9136, first connecting arm; 9137, connecting shaft; 914, stud induction device; 9141, inductor connecting piece; 9142, inductor mounting plate; 915, cylinder cover; 916, connecting plate; 92, rotary drive motor; 93, guide rail frame; 94, linear drive motor; 96, convex angle; 99, gear; 9, power mechanism. Detailed Implementation Manner

[0021] In this application, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0022] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0023] As Figures 1 - 10 shown, a modular crawler mobile stud welding device includes a longitudinal axis module 3, a transverse axis module 4, a welding torch 5, a power supply mechanism 9, a crawler chassis vehicle, a nail feeding assembly, and a stud magazine assembly. The bottom plate 2 is arranged on the crawler chassis vehicle. The longitudinal axis module 3, the power supply mechanism 9, the nail feeding assembly, and the stud magazine assembly are arranged on the bottom plate 2. The transverse axis module 4 is longitudinally slidably connected to the longitudinal axis module 3. The welding torch 5 is slidably arranged on the transverse axis module 4. One or more welding torches 5 can be arranged on the transverse axis module 4. Generally, steel beams have two rows of welding studs. For economic practicality, this embodiment takes the example of having two welding torches for illustration. A nail feeding assembly and a stud magazine assembly are arranged on one side of each welding torch 5.

[0024] As Figures 14 - 15 shown, the crawler chassis vehicle includes crawlers 11, a driving gear 12, a driven gear 13, driven rollers 14, a bottom plate 2, and a crawler driving motor 16. The crawlers 11 are sleeved outside the driving gear 12, the driven gear 13, and the driven rollers 14. The driving gear 12 and the driven gear 13 are located at both ends inside the crawlers 11. The driven rollers 14 are located at the center inside the crawlers 11. A support beam 17 is connected to one side of the axes of the driving gear 12, the driven gear 13, and the driven rollers 14. Support columns 18 are arranged on the support beam 17. The bottom plate 2 is connected to the support columns 18. The longitudinal axis module 3, the power supply mechanism 9, and the nail feeding assembly are all installed on the bottom plate 2. A longitudinal axis slider 31 is arranged on the longitudinal axis module 3. The transverse axis module 4 is connected to the longitudinal axis slider 31. A transverse axis slider 41 is arranged on the transverse axis module 4. The welding torch 5 is connected to the transverse axis slider 41. Two of the crawlers 11, the driving gear 12, the driven gear 13, and the crawler driving motor 16 are symmetrically arranged. The crawler driving motor 16 drives the driving gear 12 to rotate, the driving gear 12 drives the crawlers 11 to rotate, and the driven gear 13 and the driven rollers 14 reduce the friction of the crawlers.

[0025] As Figures 3 - 7As shown in the figure, the nail feeding assembly includes a nail feeding fork 91, a rotary drive motor 92, a linear drive motor 94 and a guide rail frame 93. The guide rail frame is fixedly installed at the output end of the rotary drive motor. The linear drive motor 94 is connected to the guide rail frame 93. The nail feeding fork 91 includes a connecting portion and a stud accommodating portion. The connecting portion of the nail feeding fork 91 is slidably connected to the guide rail frame 93. A rack is provided on the connecting portion. A gear 99 is sleeved on the output end of the linear drive motor 94. The gear 99 engages with the rack. The nail feeding fork 91 makes a circular motion driven by the rotary drive motor 92, and the nail feeding fork 91 makes a linear motion driven by the linear drive motor 94. The nail feeding fork 91 makes a planar spiral motion under the combined drive of the rotary drive motor 92 and the linear drive motor 94.

[0026] When the motor shaft of the rotary drive motor 92 rotates, the guide rail frame 93, the nail feeding fork 91 and the linear drive motor 94 rotate together. When the welding torch 5 needs a stud, the rotary drive motor 92 rotates to make the stud accommodating portion of the nail feeding fork 91 rotate below the stud magazine assembly 7. The stud magazine assembly 7 drops the stud into the stud accommodating portion of the nail feeding fork 91. At this time, the rotary drive motor 92 is started to send the stud to a position below the welding torch 5 for the welding torch 5 to load the nail.

[0027] Since the welding torch 5 needs to move left and right on the cross-axis module 4 according to different welding points, and the nail feeding fork 91 can only make a circular motion under the action of the rotary drive motor 92. When the position of the welding torch 5 is greater than or less than the axial center position of the rotary drive motor 92 compared with the axial center position of the magazine device and the rotary drive motor 92, the stud cannot be sent directly below the welding torch 5 by the rotary drive motor 92. At this time, by starting the linear drive motor 94, the nail feeding fork 91 slides on the guide rail frame 93, and the distance between the arc-shaped end of the nail feeding fork 91 and the axial center of the rotary drive motor 92 can be changed. The rotary drive motor 92 and the linear drive motor 94 can work simultaneously.

[0028] When the position of the welding torch 5 is greater than or less than the axial center position of the rotary drive motor 92 compared with the axial center position of the magazine device and the rotary drive motor 92, first keep the position of the arc-shaped end of the nail feeding fork 91 and the axial center of the rotary drive motor 92 the same as the position of the stud magazine assembly 7 and the axial center of the rotary drive motor 92. Start the rotary drive motor 92 to make the arc-shaped end rotate below the magazine device to receive the stud. After receiving the stud, start the rotary drive motor 92 and the linear drive motor 94 simultaneously. While rotating the arc-shaped end, extend or shorten the distance between the arc-shaped end and the guide rail frame 93, and the stud can be sent directly below the welding torch 5 for the welding torch 5 to load the nail.

[0029] As Figures 3 - 7As shown, the connecting part is a horizontal bar 911, the stud accommodating part is a stud receiving hook 912. The stud receiving hook 912 is integrally U-shaped. There are two convex corners 96 at the open end of the stud receiving hook 912. The non-open end of the stud receiving hook 912 is fixedly connected to the horizontal bar 911. A stud clamping unit 913 is provided at the upper end of the stud receiving hook 912, and a stud induction device 914 is connected to the lower end of the stud receiving hook 912. The stud clamping unit 913 includes a cylinder 9131, a connecting member 9132 and a chuck 9133. The connecting member 9132 includes a first connecting arm 9135, a second connecting arm 9136 and a connecting shaft 9137. The first connecting arm 9135 and the second connecting arm 9136 can rotate around the connecting shaft. The first connecting arm 9135 is hinged to the end of the piston rod of the cylinder 9131, and the second connecting arm 9136 is fixedly connected to the chuck. A cylinder cover 915 is sleeved outside the cylinder 9131. The connecting shaft 9137 is fixedly connected to the cylinder cover 915. The cylinder cover 915 is fixedly connected to the upper end of the horizontal bar 911 through a connecting plate 916. A sensor connecting member 9141 is connected to the bottom surface of the end of the horizontal bar 911 where the stud receiving hook 912 is connected. The sensor connecting member 9141 is connected to a sensor mounting plate 9142. The stud induction device 914 is mounted on the sensor mounting plate 9142.

[0030] The size of the U-shaped groove of the stud receiving hook 912 is larger than the body of the stud and smaller than the head of the stud. The size of the ceramic ring is the same as the size of the head of the stud. There is a certain height difference and horizontal distance between the output end of the stud magazine assembly and the stud receiving hook 912. When the stud with the ceramic ring falls into the U-shaped groove, the stud falls obliquely downward from a high place. The ceramic ring and the head cross the convex corner 96 and contact the top surface of the U-shaped groove, and the body contacts the inner side of the U-shaped groove. After the stud with the ceramic ring falls into the U-shaped groove, the convex corner 96 can limit the horizontal movement of the stud to the outside.

[0031] When the stud clamping unit does not clamp the stud, the cylinder is filled with compressed gas and the chuck is in an open state. When the stud falls into the U-shaped groove of the stud receiving hook, the stud induction device senses the stud, the compressed gas in the cylinder is extracted, the piston rod contracts, and the second connecting arm of the connecting member drives the chuck to close to clamp the stud.

[0032] As Figure 8 、 9As shown, the stud clamping unit further includes a motor clamping mechanism, which includes a clamping motor 581, a clamping lead screw 582, a nut 583 and a nut limit member 584. The output end of the clamping motor 581 is coaxially and fixedly connected to the clamping lead screw 582. The nut 583 is threadedly connected to the clamping lead screw 582. The nut limit member 584 restricts the rotation of the nut 583. The clamping motor 581 drives the clamping lead screw 582 to rotate. The rotation of the clamping lead screw 582 drives the nut 583 to slide on the clamping lead screw 582. The nut 583 is fixedly connected to the cylinder to drive the cylinder to move. By driving the piston rod of the cylinder to expand and contract through the clamping motor 581, the opening and closing of the chuck can be achieved without injecting and extracting compressed gas into the cylinder, and the use of motor clamping is more stable. The clamping assembly 5 can clamp the stud pneumatically or electrically.

[0033] As Figures 1 - 2 shown, it further includes a stud magazine unit, which includes a magazine switch 72, a magazine cavity 71 and a magazine bracket. The magazine cavity 71 is composed of two parallel long strips. The magazine cavity 71 is inclined with the front end lower and the rear end higher. The magazine bracket includes a first bracket 731 and a second bracket 732. The front side of the magazine cavity 71 is suspended on the first bracket 731, and the rear side of the magazine cavity 71 is suspended on the second bracket 732. A vibration motor 734 is provided on the first bracket 731, and the front end of the magazine cavity 71 is suspended under the vibration motor 734.

[0034] The magazine switch 72 is arranged on the bottom plate 2. The magazine switch 72 includes a switch motor 721. The end of the motor shaft of the switch motor 721 is arranged upward, and a second gear 722 is provided at the end. Parallel racks 723 that engage with the second gear 722 are provided on both sides of the second gear 722. In the initial state, the rack 723 close to the stud feeding component side is located at the end of the magazine cavity 71 to clamp the stud, and the rack 723 far from the stud feeding component 6 side is located outside the magazine cavity 71. The spacing of the parallel racks 723 is adapted to the diameter of the stud head.

[0035] When the stud feeding component 6 is located below the end of the magazine cavity 71, the switch motor 721 is started, the first gear rotates, and the rack 723 close to the stud feeding component 6 side slowly moves away from the magazine cavity 71. The stud at the very end of the magazine cavity 71 falls into the stud feeding component 6 under the action of gravity. At the same time, the rack 723 far from the stud feeding component 6 side extends into the magazine cavity 71 from the outside of the magazine cavity 71 to clamp the remaining studs. After the stud at the very end of the magazine cavity 71 falls into the stud feeding component 6, the switch motor 721 rotates in reverse to drive the first gear to rotate in reverse. The rack 723 far from the stud feeding component 6 side slowly moves away from the magazine cavity 71. The studs in the magazine cavity 71 slide down under the action of gravity. At the same time, the rack 723 close to the stud feeding component 6 side extends into the magazine cavity 71 from the outside of the magazine cavity 71 to clamp all the studs and return to the original state.

[0036] A vibration motor 734 is provided on the first support 731, and the lower end of the magazine cavity 71 is suspended below the vibration motor 734. The vibration motor 734 vibrates the magazine cavity 71 to prevent the stud from getting stuck in the magazine cavity 71.

[0037] After the crawler chassis vehicle moves to the welding operation area, the slider 31 of the longitudinal axis module 3 moves upward to drive the transverse axis module 4 to move to the highest point of the longitudinal axis module 3. The stud feeding component 6 sends the studs of the stud magazine component 7 to directly below the welding torch 5. The slider 31 drives the transverse axis module 4 and the two welding torches 5 to descend to load and unload the studs. After the two welding torches 5 are loaded with studs, the transverse axis module 4 moves to the highest point of the longitudinal axis module 3 again. The stud feeding component 6 moves away from below the welding torch 5 and returns to below the stud magazine component 7 to receive studs. The transverse axis module 4 drives the welding torch 5 to descend until it contacts the floor slab at about 10 mm, and then starts the welding torch 5 for welding. Since the stud welding power is large and the power supply can be welded simultaneously during welding, sometimes the power supply on the construction site is insufficient, and one welding torch can also be started for welding first and then the other welding torch can be started for welding. After both welding torches have completed welding the studs, the transverse axis module 4 moves to the highest point of the longitudinal axis module 3 again. The stud feeding component 6 performs the stud feeding and binding procedure again. At the same time, the crawler chassis vehicle moves to the next welding point, and the stud loading of the welding torch and the movement of the crawler chassis vehicle are carried out simultaneously, saving time. By continuously repeating the above steps, all welding operations can be completed. Experiments have proved that welding can be completed once every 5 - 10 seconds, with high efficiency and fast completion of welding operations.

[0038] As Figures 18 - 21 shown, the stud welding device further includes a mobile stud loading machine. The mobile stud loading machine includes a crawler moving mechanism, a stud ceramic ring component unit, and a stud storage cavity 26. The stud ceramic ring component unit includes a stud pusher 20, a stud flow channel 21, a vibrating disk 22, a ceramic ring channel 23, an electric fixture 24, and an output channel 25. The input end of the stud flow channel 21 is connected to the stud pusher 20. The input end of the ceramic ring channel 23 is connected to the vibrating disk 22. The output end of the ceramic ring channel 23 is connected to the input end of the output channel 25 and conveys the ceramic ring to the input end of the output channel 25. The electric fixture 24 clamps the studs at the output end of the stud flow channel 21 and assembles and cooperates with the ceramic rings at the input end of the output channel 25. The output end of the output channel 25 is connected to the input end 261 of the stud storage cavity. The output end 262 of the stud storage cavity is slightly higher than the input end of the magazine cavity 71. After the studs in the magazine cavity 71 are used up, the crawler chassis vehicle can be moved close to the mobile stud loading machine, and the output end 262 of the stud storage cavity can be aligned with the input end of the magazine cavity 71 to replenish the studs in the magazine cavity 71. When welding operations are carried out on high-rise buildings, the mobile stud loading machine can move to the bearing beam closest to the welding device to provide studs for the welding device.

[0039] The output end 262 of the stud reserve cavity is connected to a stud switch motor 263. The end of the motor shaft of the stud switch motor 263 is arranged upward. A switch gear 264 is provided at the end of the motor shaft. Two racks 265 that engage with the switch gear 264 are provided on both sides of the switch gear 264. In the initial state, the rack 265 on the side far from the stud ceramic ring assembly unit is located inside the clamping stud at the output end 262 of the stud reserve cavity, and the rack 265 on the side close to the stud ceramic ring assembly unit is located outside the output end 262 of the stud reserve cavity. The distance between the two racks 265 is adapted to the diameter of the stud head. When the input end of the magazine cavity 71 is connected to the output end 262 of the stud reserve cavity, the stud switch motor 263 is started, and the switch gear 264 rotates. The rack 265 on the side far from the stud ceramic ring assembly unit slowly moves away from the output end 262 of the stud reserve cavity. The stud at the outermost end of the output end 262 of the stud reserve cavity falls into the magazine cavity 71 under the action of gravity. At the same time, the rack 265 on the side close to the stud ceramic ring assembly unit extends into the output end 262 of the stud reserve cavity from the outside of the output end 262 of the stud reserve cavity to clamp the remaining studs. After the stud at the outermost end of the output end 262 of the stud reserve cavity falls into the magazine cavity 71, the switch motor rotates in reverse to drive the switch gear 264 to rotate in reverse. The rack 265 on the side far from the magazine cavity 71 slowly moves away from the output end 262 of the stud reserve cavity. The studs in the stud reserve cavity 26 slide down under the action of gravity. At the same time, the rack 265 on the side close to the magazine cavity 71 extends into the inner side of the output end 262 of the stud reserve cavity from the outside of the output end 262 of the stud reserve cavity to clamp all the studs and return to the original state. Repeating the above steps can load the studs into the magazine cavity 71 one by one and replenish the studs one by one to avoid the porcelain rings on the studs from colliding and breaking.

[0040] The crawler chassis vehicle further includes a laser receiving plate. The laser receiving plate is arranged on the bottom plate 2. The laser receiving plate includes a first receiver 1131, a second receiver 1132, and a third receiver 1133 that are arranged in parallel and left and right. The second receiver 1132 is located at the center, and the first receiver 1131 and the third receiver 1133 are located on both sides of the second receiver 1132. A laser lamp 1134 for emitting a straight laser is fixed at a point outside the crawler chassis vehicle.

[0041] Under normal circumstances, the crawler chassis vehicle travels straight. When it needs to weld at the welding point, such as Figure 4As shown, when the second receiver 1132 of the crawler chassis vehicle receives the light from the light source, it indicates that the crawler chassis vehicle has not deviated and welding operations can be carried out. If the first receiver 1131 and the third receiver 1133 receive the light from the light source, it indicates that the crawler chassis vehicle has deviated. At this time, the crawler chassis vehicle can start the in-situ 360° rotation mode to rotate. When the second receiver 1132 receives the laser emitted by the laser lamp 1134, it stops rotating and can carry out welding operations. When the crawler chassis vehicle is moving with large fluctuations, it is not necessary to detect whether the second receiver 1132 receives the laser. It is only necessary to detect whether the entire laser receiving plate receives the laser. If someone blocks the laser, something blocks it, or the vehicle deviates too much and the receiving plate cannot receive the light, or the mechanism runs out of power, the crawler chassis vehicle will stop and trigger the alarm device. After manually solving the obstacle, normal operations can continue.

[0042] As Figure 3 shown, a radar module 115 is further provided on the bottom plate 2. The radar module includes a forward and backward radar for detecting obstacles in the front and rear and a ground radar for detecting whether the ground is hollow. There are four of each of the forward and backward radar and the ground radar. The forward and backward radar are symmetrically arranged at the left and right ends of the front side and the left and right ends of the rear side of the bottom plate 2. The forward and backward radar detect in advance whether there are obstacles in the front and rear of the crawler chassis vehicle. If there are obstacles, it stops moving. It can continue to move only after the obstacles are manually cleared. The ground radar are symmetrically arranged at the left and right ends of the front side and the left and right ends of the rear side of the bottom plate 2. The position of the ground radar is more prominent than that of the crawler running mechanism. It detects in advance whether the front of the crawler running mechanism is hollow. If there is a hollow situation, the crawler chassis vehicle stops, avoiding the crawler chassis vehicle from falling from a high-rise building during high-rise building operations and ensuring personal and equipment safety.

[0043] As Figure 16 、 17 shown, a safety frame 1109 for protecting the crawler chassis vehicle is provided on the bottom plate 2. The safety frame 1109 is in an arch shape and is symmetrically arranged at the upper ends of the left and right sides of the bottom plate 2. There are usually a large number of workpieces in the operation area. The safety frame 1109 can effectively prevent the stud welding device from colliding with other workpieces.

[0044] An emergency stop switch 114 for quickly stopping the operation of the crawler chassis vehicle is provided on the safety frame 1109. There are multiple emergency stop switches 114, and the emergency stop switches 114 are arranged at one end of the safety frame 1109 close to the bottom plate 2. If a fault occurs in the crawler chassis vehicle, the emergency stop switch 114 can be pressed to stop the operation of the crawler chassis vehicle.

[0045] The bottom plate 2 is provided with a lighting lamp 117 for night lighting. There are multiple lighting lamps 117, which are symmetrically arranged at the left and right ends of the front side and the left and right ends of the rear side of the bottom plate 2. The bottom plate 2 is provided with turning indicator lights 116 for indicating the turning direction. The turning indicator lights 116 are symmetrically arranged at the left and right ends of the front side and the left and right ends of the rear side of the bottom plate 2. The safety frame 1109 is provided with safety indicator lights 118 for warning to keep away from the operating crawler chassis vehicle. There are multiple safety indicator lights 118, which are arranged at the top end of the safety frame 1109.

[0046] The safety frame 1109 is provided with lifting rings 119 for facilitating the movement of the crawler chassis vehicle between multiple floors. There are multiple lifting rings 119, which are arranged at the front and rear sides of the top end of the safety frame 1109. The crawler chassis vehicle can be moved between multiple floors by lifting the lifting rings 119 with a crane.

[0047] Circular rings 1111 are provided in the middle of both sides of the bottom plate 2. Safety ropes 1110 are provided on one or both sides of the crawler chassis vehicle. One end of the circular ring 1111 is connected to an emergency stop switch 114, and the other end of the circular ring 1111 is sleeved outside the safety rope 1110. The safety rope 1110 is linearly fixed on one side, and the circular ring 1111 is sleeved outside the safety rope 1110 without direct contact. When the crawler chassis vehicle travels in a straight line, the circular ring 1111 is parallel to the safety rope 1110 and does not collide. When the crawler chassis vehicle deviates from the straight-line travel, the circular ring 1111 collides with the safety rope 1110, and the other end of the circular ring 1111 triggers the emergency stop switch 114, and the crawler chassis vehicle stops moving to ensure the safety of the equipment.

[0048] As Figure 10 shown, the welding torch 5 includes a motor 51, a lead screw 52, a lead screw slider 53, a main shaft 54, a ceramic ring clamping unit 56 and a stud clamping unit 55. The motor shaft of the motor 51 is connected to the lead screw 52 to drive the lead screw 52 to rotate. The lead screw slider 53 is threadedly connected to the lead screw 52. The lead screw slider 53 can move up and down on the lead screw 52. The main shaft 54 is hung on the lead screw slider 53. The main shaft 54 and the lead screw slider 53 can slide relative to each other. The upper end of the stud clamping unit 55 is fixedly connected to the lower end of the main shaft 54. There is a lead screw slider mounting groove at the upper end of the main shaft 54. The height of the mounting groove is greater than the height of the lead screw slider 53, and the lead screw slider 53 slides in the mounting groove.

[0049] First, install studs and ceramic rings on the stud clamping unit 55 and the ceramic ring clamping unit 56. The ceramic ring is located above the stud. As Figure 11 、 12 shown, let the distance from the bottom surface of the ceramic ring to the bottom surface of the stud (excluding the arc starting point) be h1, and the height of the arc starting point be h2; Then, after the stud is in contact with the welding point, move the welding torch assembly downward until the ceramic ring clamping unit 56 contacts the object to be welded. During this process, the screw rod slider 53 continues to move downward, and the main shaft 54 is resisted by the stud and does not move. When the ceramic ring clamping unit 56 contacts the welding point, stop moving the welding torch 5 downward. The height of the downward movement of the welding torch 5 is equal to the distance generated between the main shaft 54 and the screw rod slider 53. For the stud with an arc starting point, the distance generated between the main shaft 54 and the screw rod slider 53 is h1 + h2, and for the stud without an arc starting point, the distance generated between the main shaft 54 and the screw rod slider 53 is h1; Assume that the optimal arc starting distance is h2 + h3, where h3 is the distance between the bottom surface of the arc starting point and the surface of the object to be welded when the arc is initiated. Rotate the screw rod 52 uniformly to lift the screw rod slider 53 by a height of h1 + h2 + h3; Without an arc starting point: When the screw rod slider 53 rises by h1, it contacts the connecting plate 57 of the main shaft 54 of the stud without an arc starting point. Subsequently, when the screw rod slider 53 continues to rise by h2 + h3, the screw rod slider 53 drives the main shaft 54 and the stud to also rise by h2 + h3. At this time, the height at which the arc is initiated between the bottom of the stud and the surface of the object to be welded is h2 + h3. With an arc starting point: When the screw rod slider 53 rises by h1 + h2, it contacts the connecting plate 57 of the main shaft 54 of the stud with an arc starting point. Subsequently, when the screw rod slider 53 continues to rise by h3, the screw rod slider 53 drives the main shaft 54 and the stud to also rise by h3. At this time, the height at which the arc is initiated between the bottom of the stud (excluding the arc starting point) and the surface of the base material is h2 + h3.

[0050] At this time, the distances between the bottom plates of the studs with and without arc starting points and the surface of the base material are the same, and the combustion spaces are consistent. Electric current is applied to generate an arc to melt the bottom of the stud and the surface of the base material to form a molten pool. Subsequently, start the motor 51 to reverse the screw rod 52, and the screw rod slider 53 descends. The main shaft 54 and the stud are pressed into the molten pool due to gravity to complete the welding.

[0051] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A nail feeding assembly, characterized in that: The invention comprises a rotary drive unit, a linear drive unit and a bolt receiving unit, wherein the rotary drive unit can drive the linear drive unit and the bolt receiving unit to rotate, and the linear drive assembly can drive the bolt receiving unit to move linearly.

2. The nail feeding assembly according to claim 1, characterized in that: The rotary drive unit comprises a rotary drive motor (92) and a guide rail frame (93), wherein the guide rail frame (93) is fixedly mounted on the output end of the rotary drive motor (92), the linear drive unit comprises a linear drive motor (94) and a gear (99) sleeved on the output end of the linear drive motor (94), and the bolt receiving unit comprises a bolt hook (912) and a horizontal bar (911), wherein the horizontal bar (911) is slidably connected to the guide rail frame (93), a rack (95) is fixed on the horizontal bar (911), and the gear (99) engages with the rack (95).

3. The nail feeding assembly according to claim 2, characterized in that: The nail connecting hook (912) is in a U-shape as a whole. The open end of the nail connecting hook (912) is provided with two convex corners (96). The non-open end of the nail connecting hook (912) is fixedly connected to the horizontal bar (911). The upper end of the nail connecting hook (912) is provided with a stud clamping unit (913). The stud clamping unit (913) is a cylinder clamping mechanism (or a motor clamping mechanism). The cylinder clamping mechanism comprises a cylinder (9131), a connecting member (9132) and a clamping head (9133). The connecting member (9132) comprises a first connecting arm (9135), a second connecting arm (9136), and a second connecting arm (9137). A connecting arm (9136) and a connecting shaft (9137), wherein the first connecting arm (9135) and the second connecting arm (9136) are rotatable around the connecting shaft, the first connecting arm (9135) is hinged to the end of the piston rod of the cylinder (9131), the second connecting arm (9136) is fixedly connected to the chuck, the cylinder (9131) is provided with a cylinder cover (915) on its outer sleeve, the connecting shaft (9137) is fixedly connected to the cylinder cover (915), and the cylinder cover (915) is fixedly connected to the upper end of the horizontal bar (911) via a connecting plate (916).

4. The nail feeding assembly according to claim 3, characterized in that: The lower end of the nail connecting hook (912) is connected to a nail sensor device (914), the bottom surface of one end of the horizontal bar (911) connected to the nail connecting hook (912) is connected to a sensor connecting piece (9141), the sensor connecting piece (9141) is connected to a sensor mounting plate (9142), and the nail sensor device (914) is mounted on the sensor mounting plate (9142).

5. A modular crawler mobile stud welding device, characterized in that: The invention comprises a nail feeding assembly as claimed in any one of claims 1 to 4, and further comprises a tracked chassis, a longitudinal axis module (3), a transverse axis module (4), a welding gun (5) and a power supply mechanism (9), wherein the longitudinal axis module (3) and the power supply mechanism (9) are arranged on a bottom plate (2), the transverse axis module (4) is longitudinally slidably connected to the longitudinal axis module (3), the welding gun (5) is transversely slidably arranged on the transverse axis module (4), and the number of welding guns (5) is one or more, which is specifically determined according to the number of rows of welding nails required to be welded.

6. The modular crawler mobile stud welding device according to claim 5, characterized in that: The crawler chassis vehicle comprises a crawler track (11), a driving gear (12), a driven gear (13), a driven roller (14), a bottom plate (2) and a crawler track driving motor (16); the crawler track (11) is sleeved on the outside of the driving gear (12), the driven gear (13) and the driven roller (14); the driving gear (12) and the driven gear (13) are located at two ends of the crawler track (11); the driven roller (14) is located at the center of the crawler track (11); A support beam (17) is connected to one side of the axis of the support beam (14), a support column (18) is provided on the support beam (17), the bottom plate (2) is connected to the support column (18), the longitudinal axis module (3), the power supply mechanism (9) and the nail feeding assembly are all installed on the bottom plate (2), the longitudinal axis module (3) is provided with a longitudinal axis slider (31), the transverse axis module (4) is connected to the longitudinal axis slider (31), the transverse axis module (4) is provided with a transverse axis slider (41), and the welding gun (5) is connected to the transverse axis slider (41).

7. The modular crawler mobile stud welding device according to claim 6, characterized in that: It also includes a bolt clip unit, the bolt clip unit includes a clip switch (72), a clip chamber (71) and a clip bracket, the clip chamber (71) is composed of two parallel long strips, the clip chamber (71) is tilted with the front lower and the rear higher, the clip bracket includes a first bracket (731) and a second bracket (732), the front side of the clip chamber (71) is suspended on the first bracket (731), and the rear side of the clip chamber (71) is suspended on the second bracket (732), the first bracket (731) is provided with a vibration motor (734), the front end of the clip chamber (71) is suspended on the lower side of the vibration motor (734), and the The clip switch (72) is arranged on the bottom plate (2), and comprises a switch motor (721). The motor shaft end of the switch motor (721) is arranged upward, and a second gear (722) is arranged at the end. Parallel racks (723) meshing with the second gear (722) are arranged on both sides of the second gear (722). In an initial state, the rack (723) close to the nail feeding component is located at the end of the clip chamber (71) to clamp the column bolt, and the rack (723) away from the nail feeding component (6) is located outside the clip chamber (71). The spacing between the parallel racks (723) is adapted to the diameter of the bolt head.

8. The modular crawler mobile stud welding device according to claim 6, characterized in that: It also includes a laser receiving plate for detecting the straight-line travel of the tracked chassis. The laser receiving plate is arranged on the tracked chassis. The laser receiving plate includes a first laser receiver, a second laser receiver and a third laser receiver arranged in parallel on the left and right. The second laser receiver is located in the center, and the first laser receiver and the third laser receiver are located on both sides of the second laser receiver. A laser lamp for emitting a linear laser is fixed at a point outside the welding vehicle.

9. The modular crawler mobile stud welding device according to claim 6, characterized in that: The invention also includes a safety device, which includes an advance and retreat radar, an underground radar, a safety frame, a safety rope, a lighting lamp and a turning indicator lamp. The advance and retreat radar and the underground radar are installed on the front and rear sides of the bottom plate (2). The safety frame is installed on the bottom plate (2). The safety frame is provided with an emergency stop switch, a safety indicator lamp and a lifting ring. The safety rope is installed on both sides outside the crawler chassis. The safety rope is connected to the emergency stop switch. The lighting lamp and the turning indicator lamp are installed on the front and rear sides of the welding vehicle.

10. The modular crawler mobile stud welding device according to claim 5, characterized in that: The welding gun (5) comprises a motor (51), a screw (52), a screw slider (53), a main shaft (54), a ceramic ring clamping unit (56) and a stud clamping unit (55); the motor shaft of the motor (51) is connected to the screw (52) to drive the screw (52) to rotate; the screw slider (53) is threadedly connected to the screw (52); the screw slider (53) can move up and down on the screw (52); the main shaft (54) is hung on the screw slider (53); the main shaft (54) and the screw slider (53) can slide relative to each other; and the upper end of the stud clamping unit (55) is fixedly connected to the lower end of the main shaft (54).

11. The modular crawler mobile stud welding device according to claim 7, characterized in that: It also includes a mobile stapling machine, which includes a crawler moving mechanism, a stud ceramic ring assembly unit and a stud storage chamber. The stud ceramic ring assembly unit includes a stud pusher (10), a stud flow channel (11), a vibration plate (12), a ceramic ring material channel (13), an electric clamp (14) and an output channel (15). The input end of the stud flow channel (11) is connected to the stud pusher (10), the input end of the ceramic ring material channel (13) is connected to the vibration plate (12), and the output end of the ceramic ring material channel (13) is connected to the input end of the output channel (15) and transports the ceramic ring to the output channel. The electric clamp (14) clamps the bolt at the output end of the bolt flow channel (11) and assembles it with the porcelain ring at the input end of the output channel (15). The output end of the output channel (15) is connected to the input end (261) of the bolt storage chamber. The output end (261) of the bolt storage chamber is slightly higher than the input end of the magazine chamber (71). After the bolts in the magazine chamber (71) are used up, the movable crawler chassis vehicle approaches the mobile stapling machine and aligns the output end (262) of the bolt storage chamber with the input end of the magazine chamber (71) to replenish the magazine chamber (71) with bolts.

Images