H-shaped steel door welding machine

Abstract

The utility model relates to the technical field of welding equipment, in particular to an H-shaped steel door welding machine which comprises a portal frame erected on guide rails, two transferring mechanisms are arranged on the portal frame, and welding guns are arranged at the control ends of the transferring mechanisms. Wherein the bottom of the portal frame is fixedly provided with a transverse plate, the bottom of the transverse plate is provided with a rolling piece which slides in the guide rail, and the two sides of the transverse plate are respectively provided with a cleaning mechanism. According to the portal frame cleaning device, the wall faces of the guide rails can be cleaned in the advancing and retreating process of the portal frame, for example, the problems that due to the fact that impurities are accumulated on the wall faces, rolling pieces shake in the moving process, and sealing-off or deviated welding of welding points occurs are solved, and the cleaning mechanism can move up and down on the two sides through the control assembly; it can be ensured that the guide rail is stably cleaned on the advancing side of the welding machine, and the rear side is lifted and does not make contact with the guide rail.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to an H-shaped steel portal welding machine. Background Art

[0002] At present, H-shaped steel is an economical section high-efficiency profile with more optimized cross-sectional area distribution and more reasonable strength-to-weight ratio. It is named because its cross-section is the same as the English letter "H". Since all parts of the H-shaped steel are arranged at right angles, the H-shaped steel has the advantages of strong bending resistance in all directions, simple construction, cost saving, and light structural weight, and has been widely used; the forming of H-shaped steel generally goes through cutting, assembling and welding of steel plates.

[0003] In the prior art, when welding H-shaped steel, the spliced H-shaped steel is generally placed on a bracket, and then the portal welding machine is started to weld the long weld of the H-shaped steel. For example, an H-shaped steel portal welding machine disclosed in Chinese Patent Publication No. "CN115958349A" includes a gantry, a traveling mechanism, a sliding mechanism, a welding torch and a placement rack. The gantry slides on the ground through the traveling mechanism, and the placement rack is used for placing the H-shaped steel and is located below the gantry.

[0004] Since the traveling stability of such a portal welding machine directly affects the welding quality when it is traveling, and the current welding machine moves in the guide rail. Since no corresponding cleaning mechanism is provided, when foreign matters accumulate in the guide rail, when it easily travels to this place, the entire gantry will shake, resulting in situations such as welding detachment or deviation welding. Based on this, in order to further optimize the welding stability of the existing portal welding machine, we propose an H-shaped steel portal welding machine. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the above-mentioned disadvantages in the prior art and propose an H-shaped steel portal welding machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] Design an H-shaped steel portal welding machine, including a gantry erected on a guide rail, and two transfer mechanisms are arranged on the gantry, and a welding torch is arranged at the control end of the transfer mechanism;

[0008] Wherein, a horizontal plate is fixedly installed at the bottom of the gantry, rolling elements sliding in the guide rail are arranged at the bottom of the horizontal plate, cleaning mechanisms are arranged on both sides of the horizontal plate, and a control component for switching the upper and lower positions of the two cleaning mechanisms is arranged in the longitudinal rod of the gantry.

[0009] Further, the transfer mechanism includes an X-direction driving mechanism, and a Y-direction driving mechanism is further arranged on the X-direction driving mechanism, and the welding torch is fixed to the bottom of the Y-direction driving mechanism.

[0010] Further, the cleaning mechanism includes a guide rod inserted into the cross plate, and a mounting plate is detachably connected to the bottom of the guide rod. A cleaning cotton is fixedly installed at the bottom of the mounting plate, and a spring is fixedly connected between the guide rod and the cross plate.

[0011] Further, a plug rod is fixedly installed at the top of the mounting plate. The plug rod is movably inserted into the guide rod. A positioning glass bead is embedded on the outer side of the plug rod, and a positioning hole adapted to the positioning glass bead is arranged on the outer side of the guide rod.

[0012] Further, a guiding protrusion is fixedly installed on the outer side of the guide rod, and a notch adapted to the guiding protrusion is arranged in the accommodating hole of the guide rod.

[0013] Further, the control assembly includes an electric push rod fixed inside the vertical rod. A pushing block is fixedly installed at the shaft end of the electric push rod. The pushing block has two symmetrical inclined surfaces. A top rod is horizontally inserted into the inner side of the vertical rod. Two positioning pins adapted to the pushing block are arranged on the outer side of the top rod, and a wedge-shaped groove in contact with the top rod is arranged on the end surface of the guide rod.

[0014] A kind of H-shaped steel portal welding machine proposed by the present utility model has the beneficial effects that: in the present utility model, by arranging a cleaning mechanism at the bottom of the gantry, it can realize cleaning the wall surface of the guide rail during the forward and backward movement of the gantry. For example, if impurities accumulate on the wall surface, it will cause the rolling parts to shake during movement, resulting in problems such as the welding points at this place becoming unsoldered or having offset welding. Secondly, the cleaning mechanism in the present utility model can also move up and down on both sides through the control assembly, which can ensure stable cleaning of the guide rail on the forward side of the welding machine, and lift the rear side to not contact the guide rail to avoid the problem of pulling back impurities onto the guide rail, greatly improving the stability and convenience of cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the present utility model;

[0016] Figure 2 is a structural schematic diagram of the cleaning mechanism of the present utility model;

[0017] Figure 3 is a structural schematic diagram of the control assembly of the present utility model.

[0018] In the figure: 1, guide rail; 2, gantry; 21, longitudinal rod; 3, transfer mechanism; 31, X-direction driving mechanism; 32, Y-direction driving mechanism; 4, welding torch; 5, cross plate; 6, rolling element; 7, cleaning mechanism; 71, guide rod; 72, mounting plate; 73, cleaning cotton; 74, spring; 75, insertion rod; 76, positioning bead; 77, positioning hole; 78, guiding projection; 8, control component; 81, electric push rod; 82, pushing block; 83, inclined surface; 84, ejector rod; 85, positioning pin; 86, wedge-shaped groove. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] Refer to Figures 1-3 For an embodiment of the present invention, it discloses an H-shaped steel gantry welder. The gantry welding includes a gantry 2 erected on a guide rail 1. Specifically, two transfer mechanisms 3 are provided on the gantry 2. A welding torch 4 is provided at the control end of the transfer mechanism 3. The transfer mechanism 3 is used to control the horizontal and vertical movement of the welding torch 4 to drive two welding torches 4 to weld the H-shaped steel.

[0021] Among them, a cross plate 5 is fixedly installed at the bottom of the gantry 2. A rolling element 6 sliding in the guide rail 1 is provided at the bottom of the cross plate 5. Cleaning mechanisms 7 are provided on both sides of the cross plate 5. A control component 8 for switching the up and down positions of the two cleaning mechanisms 7 is provided in the longitudinal rod 21 of the gantry 2.

[0022] In some embodiments, the transfer mechanism 3 in the present invention includes an X-direction driving mechanism 31. A Y-direction driving mechanism 32 is further provided on the X-direction driving mechanism 31. The welding torch 4 is fixed at the bottom of the Y-direction driving mechanism 32. Specifically, the X-direction driving mechanism 31 in this embodiment includes a gear and rack matching mechanism controlled by a motor. Of course, the Y-direction driving mechanism 32 includes a longitudinal rod, and the longitudinal movement can also be realized by a gear and rack matching mechanism controlled by a motor. The specific structure is a conventional technical means for those skilled in the art and will not be elaborated here.

[0023] Furthermore, the cleaning mechanism 7 in the present embodiment includes a guide rod 71 inserted into the cross plate 5, and a mounting plate 72 is detachably connected to the bottom of the guide rod 71, and a cleaning cotton 73 is fixedly installed at the bottom of the mounting plate 72, and a spring 74 is fixedly connected between the guide rod 71 and the cross plate 5, that is, the cleaning cotton 73 provided in the present embodiment is used to clean the inner side surface of the guide rail 1 to avoid the presence of foreign matter on the wall surface of the guide rail 1, which causes the rolling element 6 to shake when rolling, thereby affecting the welding accuracy. The design of the spring 74 can ensure that the cleaning cotton 73 can always be in contact with the wall surface of the guide rail 1, so as to improve the cleaning stability of the guide rail 1.

[0024] On the basis of the above embodiment, in the utility model, an insertion rod 75 is fixedly installed on the top of the mounting plate 72, and the insertion rod 75 is movably connected with the guide rod 71. A positioning glass bead 76 is embedded on the outer side of the insertion rod 75, and a positioning hole 77 compatible with the positioning glass bead 76 is provided on the outer side of the guide rod 71. The positioning glass bead 76 structure is a prior art and will not be described in detail here. Specifically, when there are many impurities on the cleaning cotton 73, the telescopic end of the positioning glass bead 76 can be pressed to retract it into the inside of the positioning hole 77, so that the insertion rod 75 can be removed from the inside of the guide rod 71 to achieve convenient replacement of the cleaning cotton 73. Of course, during installation, it is only necessary to insert the insertion rod 75 carrying the new cleaning cotton 73 into the front of the guide rod 71. Preferably, the cleaning cotton 73 can be arranged to be fixed to the mounting plate 72 by Velcro or adhesive.

[0025] Furthermore, in order to achieve circumferential guidance of the guide rod 71 for upward and downward movement, a guide protrusion 78 is fixedly installed on the outer side of the guide rod 71 in the utility model, and a notch matched with the guide protrusion 78 is provided in the accommodating hole of the guide rod 71.

[0026] In a preferred embodiment, the control component 8 in the utility model includes an electric push rod 81 fixed inside the longitudinal rod 21, and a push block 82 is fixedly installed on the axial end of the electric push rod 81, and the push block 82 has two symmetrical inclined surfaces 83, wherein a push rod 84 is laterally inserted into the inner side of the longitudinal rod 21, and the outer side of the push rod 84 has two locating pins 85 adapted to the push block 82, and the spacing between the two locating pins 85 is the same as the maximum end width of the push block 85, and a wedge-shaped groove 86 in contact with the push rod 84 is provided on the end face of the guide rod 71.

[0027] Specifically, the electric push rod 81 described in the utility model is electrically connected to the control unit of the welding machine, so that the electric push rod 81 can be started synchronously during the forward and backward movements of the welding machine. For example, when the welding machine moves forward, the electric push rod 81 is in a fixed state, and the pushing block 82 on the axial end of the electric push rod 81 will resist the movement of the positioning pin 85 to enable one end of the push rod 84 to be inserted into the wedge-shaped groove 86 of the guide rod 71. The guide rod 71 is the guide rod 71 that moves away from the welding movement. In this way, the guide rod 71 can be raised upward so that the cleaning cotton 73 does not contact the surface of the guide rail 1 to avoid bringing impurities into the guide rail 1 in the reverse direction. At this time, the cleaning cotton 73 on the forward side stably contacts the surface of the guide rail 1 to push the impurities outward for cleaning. Similarly, when the welding moves backward, the cleaning cotton 73 on the away side rises, and the cleaning cotton 73 on the forward side resists the surface of the guide rail 1 to achieve the cleaning effect of the guide rail 1 and avoid the problem that impurities affect the movement stability of the welding machine.

[0028] In summary, in the utility model, by arranging a cleaning mechanism 7 at the bottom of the gantry 2, the wall surface of the guide rail 1 can be cleaned during the process of the gantry 2 moving forward and backward. For example, impurities accumulate on the wall surface, causing the rolling element 6 to shake when moving, resulting in problems such as desoldering or biased welding of the welding point. Secondly, the cleaning mechanism 7 in the utility model can also realize the up and down movement of both sides through the control component 8, which can ensure that the guide rail 1 is stably cleaned on the forward side of the welding machine, and the rear side is lifted up and does not contact the guide rail 1, so as to avoid the problem of pulling impurities back onto the guide rail 1, thereby greatly improving the stability and convenience of cleaning.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A H-shaped steel door welding machine, including a gantry (2) erected on a guide rail (1), characterized in that: Two transfer mechanisms (3) are provided on the gantry (2), and a welding torch (4) is provided at the control end of the transfer mechanism (3). Specifically, a cross plate (5) is fixedly installed at the bottom of the gantry (2). Rolling members (6) that slide in the guide rails (1) are provided at the bottom of the cross plate (5). Cleaning mechanisms (7) are provided on both sides of the cross plate (5). A control component (8) for switching the up and down positions of the two cleaning mechanisms (7) is provided in the vertical rod (21) of the gantry (2).

2. The H-shaped steel door welding machine according to claim 1, characterized in that: The transfer mechanism (3) includes an X-direction driving mechanism (31). A Y-direction driving mechanism (32) is further provided on the X-direction driving mechanism (31). The welding torch (4) is fixed to the bottom of the Y-direction driving mechanism (32).

3. The H-shaped steel door welding machine according to claim 1, wherein: The cleaning mechanism (7) includes a guide rod (71) inserted into the cross plate (5). A mounting plate (72) is detachably connected to the bottom of the guide rod (71). A cleaning cotton (73) is fixedly installed at the bottom of the mounting plate (72). A spring (74) is fixedly connected between the guide rod (71) and the cross plate (5).

4. The H-shaped steel door welding machine according to claim 3, characterized in that: A plug rod (75) is fixedly installed at the top of the mounting plate (72). The plug rod (75) is movably inserted into the guide rod (71). A positioning bead (76) is embedded on the outer side of the plug rod (75). A positioning hole (77) adapted to the positioning bead (76) is provided on the outer side of the guide rod (71).

5. The H-shaped steel door welding machine according to claim 3, characterized in that: A guiding protrusion (78) is fixedly installed on the outer side of the guide rod (71). A notch adapted to the guiding protrusion (78) is provided in the receiving hole of the guide rod (71).

6. The H-shaped steel door welding machine according to claim 3, characterized in that: The control component (8) includes an electric push rod (81) fixed inside the vertical rod (21). A pushing block (82) is fixedly installed at the shaft end of the electric push rod (81). The pushing block (82) has two symmetric inclined surfaces (83). Specifically, a push rod (84) is horizontally inserted into the inner side of the vertical rod (21). Two positioning pins (85) adapted to the pushing block (82) are provided on the outer side of the push rod (84). A wedge-shaped groove (86) in contact with the push rod (84) is provided on the end face of the guide rod (71).

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