Submerged arc welding machine auxiliary assembly for box beam column

Abstract

The utility model discloses a submerged arc welding machine auxiliary assembly for a box type beam column, which comprises a conversion connecting plate, a connecting bottom plate and a connecting side plate, the connecting side plate is provided with a fastening through hole, and the conversion connecting plate is connected with a machine head through the matching of a fastener and the fastening through hole; the welding seam positioning baffle plate is arranged at the lower part of the conversion connecting plate and is provided with a positioning top plate and a positioning side plate; the welding seam adjusting mechanism is used for driving at least one of the conversion connecting plate and the welding seam positioning baffle to move in the direction perpendicular to the advancing direction of the machine head, so that the connecting side plate and the positioning side plate get close to each other or get away from each other, the welding machine head additionally provided with the assembly has the functions of deviation correction and flux leakage prevention when welding box type beam column welding seams, the welding seams do not deviate, and the welding quality is improved. The welding quality is good, the equipment structure is simple and easy to use, operation is convenient, a set of box type beam column machine head does not need to be purchased independently, consumables are reduced, cost is saved, and disassembly and assembly are convenient, time-saving and labor-saving.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding equipment, and particularly relates to a submerged arc welding machine auxiliary component for box-shaped beam columns. Background Technique

[0002] Submerged arc welding (including submerged arc surfacing, electroslag surfacing, etc.) is a welding method in which an arc burns under a flux layer. Its inherent advantages of stable welding quality, high welding productivity, no arc light and very little smoke and dust make it the main welding method in the fabrication of important steel structures such as pressure vessels, pipe sections, and box-shaped beam columns.

[0003] Chinese Patent with application number CN202123208012.8 discloses a submerged arc welding machine for box column processing, including a wire reel and a welding machine. A cross frame is arranged below the wire reel. A fixed frame is installed on one side of the cross frame. A flux box is installed inside the fixed frame. An activated carbon plate is installed in the purification box in a pull-out manner, and a metal filter screen is also installed in the purification box in a pull-out manner. A smoking component is installed outside the purification box. The smoking component diverts the smoke generated by the welding of the welding machine to the purification box, and the welding machine is installed on the cross frame.

[0004] With further research by the applicant, it is found that when placing box-shaped beam columns, there are problems of position deviation and bending deformation of the box-shaped beam columns themselves. As Figure 1 shown, the coincidence degree between the weld to be welded and the head walking track cannot be guaranteed, and welding slag is likely to leak from the weld. The reason is that the baffle for blocking welding slag cannot follow the rotation angle of the corner. When encountering the deformation of the box-shaped beam column, there will inevitably be gaps of different sizes between the box girder column and the baffle. Because the head of the welding machine walks in a straight line and cannot follow the deformation track of the box column, with the gap, molten slag will flow out at the welding nozzle and stay in the gap, and become solid after cooling, so welding has to be terminated, affecting the welding quality. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A submerged arc welding machine auxiliary component for box-shaped beam columns, comprising:

[0007] A conversion connecting plate, which has a connecting bottom plate and connecting side plates. A fastening through hole is opened on the connecting side plates. The conversion connecting plate is connected to the head through the cooperation of fasteners and the fastening through holes;

[0008] A weld positioning baffle is arranged below the conversion connecting plate. The weld positioning baffle has a positioning top plate and positioning side plates;

[0009] The weld adjustment mechanism is used to drive at least one of the conversion connecting plate and the weld positioning baffle to move perpendicular to the traveling direction of the machine head, so that the connecting side plate and the positioning side plate approach or move away from each other.

[0010] Furthermore, it further includes a leak-proof baffle. The leak-proof baffle is provided with a first strip-shaped through hole in the width direction. The leak-proof baffle is detachably arranged on the side of the positioning side plate through the cooperation of the fastener and the first strip-shaped through hole.

[0011] Furthermore, the weld adjustment mechanism includes a screw installed at the upper end of the connecting bottom plate.

[0012] Furthermore, the connecting bottom plate is provided with a second strip-shaped through hole extending in the width direction.

[0013] Furthermore, the cross-sections of both the conversion connecting plate and the weld positioning baffle are L-shaped.

[0014] Furthermore, an angle adjustment mechanism rotatably connected through a fastener is further provided on the upper surface of the positioning top plate.

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] The welding machine head equipped with this component has the functions of deviation correction and preventing leakage of welding flux when welding the welds of box-shaped beam-columns. The welding quality is good, the equipment structure is simple and easy to use, the operation is convenient, there is no need to purchase a set of box-shaped beam-column machine heads separately, the consumables are reduced, the cost is saved, and the disassembly and assembly are convenient, saving time and effort.

[0017] During welding, the weld positioning baffle can adjust the angle with the deformation of the box-shaped column, so that this auxiliary device always clings to the edge of the box-shaped beam-column, ensuring that the weld is of a suitable width, avoiding the leakage of welding slag, and guaranteeing the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 It is a schematic diagram of the main structure of an embodiment of the present utility model;

[0020] Figure 3 It is a three-dimensional structure schematic diagram (view angle one) of an embodiment of the auxiliary component of the submerged arc welding machine of the present utility model;

[0021] Figure 4 It is a three-dimensional structure schematic diagram (view angle two) of an embodiment of the auxiliary component of the submerged arc welding machine of the present utility model;

[0022] Figure 5 It is a front view structure schematic diagram of an embodiment of the auxiliary component of the submerged arc welding machine of the present utility model;

[0023] The reference numerals in the accompanying drawings of the specification include:

[0024] Conversion connecting plate 1, connecting bottom plate 10, second strip-shaped through hole 100, connecting side plate 11, fastening through hole 110, weld positioning baffle 2, positioning top plate 20, positioning side plate 21, weld adjusting mechanism 3, bump 30, leak-proof baffle 4, first strip-shaped through hole 40, machine head 5, welding nozzle 50, fastener 6, angle adjusting mechanism 7, box-shaped beam-column 8, weld 80. Specific embodiments

[0025] In order to enable those skilled in the art to better understand the present utility model, the technical solution of the present utility model will be further described below with reference to the accompanying drawings and embodiments.

[0026] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, rather than physical diagrams, and should not be construed as a limitation on this patent; in order to better illustrate the embodiments of the present utility model, some components in the accompanying drawings will be omitted, enlarged or reduced, which does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted. The same or similar reference numerals in the accompanying drawings of the embodiments of the present utility model correspond to the same or similar components; in the description of the present utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and should not be construed as a limitation on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] As Figure 1 - Figure 5 shown:

[0028] In this embodiment, taking the H-shaped steel submerged arc welding machine head as an example, the box-shaped beam-column is welded. The auxiliary components of this submerged arc welding machine mainly consist of a conversion connecting plate 1, a weld positioning baffle 2, a weld adjusting mechanism 3, an angle adjusting mechanism 7, and a secondary leak-proof baffle 4 for the welding flux.

[0029] Among them, the conversion connecting plate 1 has a connecting bottom plate 10 and a connecting side plate 11. The conversion connecting plate 1 is connected to the machine head 5 through the cooperation of the fastener 6 and the fastening through hole 110;

[0030] The conversion connecting plate 1 is made of angle iron. Two fastening through holes 110 are drilled in the connecting side plate 11, and two fasteners 6 of the same type as M10 screws are used to fix it on the H-shaped steel machine head 5. As Figure 2as shown

[0031] A second strip-shaped through hole 100 extending in the width direction is formed in the connecting base plate 10, and the size of the strip-shaped hole is: 10.3 mm in width and 40 mm in length.

[0032] The weld positioning baffle 2 is arranged below the conversion connecting plate 1, and the weld positioning baffle 2 has a positioning top plate 20 and a positioning side plate 21;

[0033] The weld adjusting mechanism 3 is used to drive at least one of the conversion connecting plate 1 and the weld positioning baffle 2 to move in a direction perpendicular to the traveling direction of the machine head 5, so that the connecting side plate 11 and the positioning side plate 21 approach or move away from each other.

[0034] If the weld positioning baffle cannot rotate, when the box-shaped beam-column deforms, a gap will surely be formed between the box-shaped beam-column and the weld positioning baffle. Because the machine head moves in a straight line and cannot follow the deformation track of the box-shaped beam-column. With a gap, the molten slag will flow out at the welding nozzle and stay in the gap. After cooling, it becomes solid and will also widen the gap, resulting in a vicious cycle and finally having to terminate the welding.

[0035] The weld positioning baffle 2 is also made of angle iron. A hole with a diameter of 10.3 mm is drilled at the upper end of the positioning top plate 20. A M10 screw passes through the second strip-shaped through hole 100 to connect the conversion connecting plate 1 and the weld positioning baffle 2 together. The weld positioning baffle 2 can freely rotate a certain angle around this screw to adapt to the position deviation of the box-shaped beam-column 8 placed and the bending deformation caused by force majeure, so as to achieve the purpose of deviation correction.

[0036] The cross sections of both the conversion connecting plate 1 and the weld positioning baffle 2 are L-shaped.

[0037] Among them, during welding, the positioning side plate 21 on the other side is closely attached to the edge of the box-shaped beam-column 8, playing the role of weld positioning and preventing the leakage of the welding flux.

[0038] The welding machine head 5 equipped with this component has the functions of deviation correction and preventing the leakage of welding flux when welding the welds of the box-shaped beam-column 8. The welds do not deviate, the welding quality is good, the equipment structure is simple and easy to use, the operation is convenient, and there is no need to purchase a set of machine heads 5 for box-shaped beam-columns separately.

[0039] The later maintenance cost is low. The weld positioning baffle 2 of the special machine head 5 for the box-shaped beam-column 8 is made of copper plate, and the weld positioning baffle 2 of the modified machine head 5 is made of angle iron. When damaged and replaced with a new copper plate, the price is much higher than that of the angle iron. It reduces consumables, saves costs, is convenient for disassembly and installation, and saves time and effort.

[0040] such as Figure 3As shown, the weld adjustment mechanism 3 can specifically be a screw installed at the upper end of the connecting base plate 10, and its free end is connected to the screw in the second strip through hole 100. In this embodiment, a bump 30 can be built up with flux on the top of the screw, or a block of similar shape can be used for welding to increase the height and fulcrum of the screw. The free end of the screw is connected to the bump 30. Since the conversion connecting plate 1 and the weld positioning baffle 2 are not tightly connected, there is a certain clearance between the two. A handle can be set at the other end of the screw. When the handle is turned, the screw structure drives the weld positioning baffle 2 to move left and right, thereby adjusting the distance between the screw and the conductive nozzle of the welding machine to adapt to the welding of box beams 8 of different thicknesses.

[0041] The axial position of the weld adjustment mechanism should be directly opposite to the conductive nozzle of the machine head. The purpose is to minimize the gap between the positioning side plate closest to the conductive nozzle and the edge of the box beam column during welding. Because during welding, the temperature near the conductive nozzle is the highest, and the flux here is melted and almost viscous. If there is a gap here, the melted flux will flow into the gap, and the slag will quickly cool and become solid, further squeezing the baffle open, and more slag will flow down, and finally welding will not be possible. After passing the welding nozzle, the high-temperature slag will quickly condense into a solid. There is no problem with a little gap after the welding nozzle, because the slag becomes solid and will not flow into the gap, and will not squeeze the weld positioning baffle open.

[0042] The existing welding machine head lacks a baffle for welding slag / flux, and since the leak-proof baffle 4 is installed, if there is a gap between the baffle and the edge of the box beam, during welding, a certain height of flux is piled at the box beam and the leak-proof baffle. Since the lower part of the leak-proof baffle 4 and the box beam are horizontal gaps, very little flux flows down from the horizontal gap, and the flux above the horizontal gap is blocked by the leak-proof baffle. When there is no leak-proof baffle 4, the situation is different. The flux near the gap does not flow horizontally, but flows vertically, which wastes the flux and is not conducive to cost saving.

[0043] like Figure 4 , Figure 5 As shown, specifically, the leakage-proof baffle plate 4 is provided with a first strip-shaped through hole 40 along the width direction, and the leakage-proof baffle plate 4 is detachably arranged on the side of the positioning side plate 21 through the cooperation of the fastener 6 and the first strip-shaped through hole 40 .

[0044] The size parameters of the leak-proof baffle plate 4 are as follows: thickness 6 mm, height 60 mm, and the length thereof can be determined according to the distance between the welding nozzle 50 and the sand suction pipe of the welding machine. The leak-proof baffle plate 4 is rectangular as a whole and is a steel part.

[0045] The first strip-shaped through hole 40 has the following parameters: 10.3 mm in width and 40 mm in length. It is connected to the positioning side plate 21 with an M10 screw or other fastener 6 so that the two can be adjusted up and down and disassembled.

[0046] After the height between the welding nozzle 50 and the weld seam 80 is determined, the height of the anti-leakage baffle 4 from the welding surface of the box-shaped beam-column 8 is adjusted by the cooperation of the fastener 6 and the first strip-shaped through-hole 40. The ideal height is such that during the welding process, the slag is not damaged, and even if there is a large gap between the weld seam positioning baffle 2 and the edge of the box-shaped beam-column 8, no welding flux leaks, which is appropriate. Due to the addition of the anti-leakage baffle 4, horizontal and vertical gaps are formed at this welding part, achieving a secondary anti-leakage effect for the welding flux. The principle is that when the welding flux pile passes through the horizontal gap, the amount of welding flux leakage is much lower than that through the vertical gap.

[0047] Due to the installation of the anti-leakage baffle, basically no welding flux leakage occurs at the gap.

[0048] In addition, an angle adjustment mechanism rotatably connected by a fastener is provided on the upper surface of the positioning top plate. The angle adjustment mechanism can adjust the angle of the weld seam positioning baffle, adopting a screw structure driving form. Its setting is only used in a few cases. For example, when the bending deformation of the welded box-shaped beam-column is too large, and when welding reaches the position closest to the track parallel line and leaves about 20 cm away from the parallel line, it may be considered to activate it.

[0049] Except for the above positions, or when the bending deformation of most box-shaped beam-columns is not large, the angle adjustment mechanism can be adjusted to the middle position, and the weld seam positioning baffle can freely rotate a certain angle. Adopting the basic structure, the function of weld seam deviation correction can be achieved, and a weld seam 80 can be welded tightly against the edge of the box-shaped beam-column.

[0050] When using this component, first place the box-shaped beam-column to be welded in a suitable position, operate the control panel, adjust the height of the welding nozzle relative to the weld seam to a suitable value, make the welding wire of the welding nozzle face the middle of the weld seam, adjust the weld seam adjustment mechanism to make the weld seam positioning baffle closely adhere to the edge of the box-shaped beam-column, and adjust the anti-leakage baffle to a suitable height;

[0051] Then adjust the angle adjustment mechanism to a suitable position so that the weld seam positioning baffle can freely rotate a certain angle. In most cases, this step can also not be started, and the angle adjustment mechanism can be removed.

[0052] Open the welding flux switch, pile enough welding flux around the welding nozzle, start the forward and welding switches to perform welding, and start the welding flux recovery switch to recover the excess welding flux.

[0053] Before welding, first press the control switch to control the up or down position of the machine head so that the welding nozzle reaches an appropriate height from the weld seam. Then press the left or right control switch to align the welding wire with the weld seam. Next, rotate the weld seam adjusting mechanism to make the positioning side plate closely adhere to the edge of the box-shaped beam-column. At this time, the relative position between the positioning side plate and the welding nozzle remains unchanged. If the box-shaped beam-column is deformed by heat during assembly or welding, causing the weld seam in the section from the starting end of the welding to approximately the middle position of the box-shaped column to deviate to the left, due to the action of the pre-tightening force, the front end of the weld seam positioning baffle is forced to move to the left, while there is an included angle between the rear end of the weld seam positioning baffle and the edge of the box-shaped beam-column, and it is not affected by the leftward force. Since the weld seam positioning baffle can rotate around the fastener, when the front end is forced to move to the left and the rear end is forced to move to the right, the included angle at the rear end also disappears, that is, both the front and rear ends closely adhere to the edge of the box-shaped beam-column.

[0054] The above are only the embodiments of the present utility model. Common general knowledge such as the specific structures and characteristics in the solution are not described in detail here. Those of ordinary skill in the art know all the common general knowledge in the technical field to which the utility model belongs before the application date or the priority date, can learn all the existing technologies in this field, and have the ability to apply the conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application and combined with their own abilities, improve and implement this solution. Some typical well-known structures or well-known methods should not become an obstacle for those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicality of the patent.

Claims

1. An auxiliary component for a submerged arc welding machine used for box-shaped beam-columns, characterized in that, Including: A conversion connecting plate, which has a connecting bottom plate and connecting side plates. Fastening through holes are formed in the connecting side plates, and the conversion connecting plate is connected to the machine head through the cooperation of fasteners and the fastening through holes; A weld positioning baffle, which is arranged below the conversion connecting plate and has a positioning top plate and positioning side plates; A weld adjusting mechanism, which is used to drive at least one of the conversion connecting plate and the weld positioning baffle to move in a direction perpendicular to the traveling direction of the machine head, so that the connecting side plate and the positioning side plate approach or move away from each other.

2. The auxiliary component of the submerged arc welding machine for box-shaped beam columns according to claim 1, wherein: It further includes a leak-proof baffle. The leak-proof baffle is provided with a first strip-shaped through hole in the width direction, and the leak-proof baffle is detachably arranged on the side of the positioning side plate through the cooperation of fasteners and the first strip-shaped through hole.

3. The submerged arc welding machine auxiliary component for box-shaped beam columns according to claim 1 or 2, characterized in that: The weld adjusting mechanism includes a screw rod installed at the upper end of the connecting bottom plate.

4. The submerged arc welding machine auxiliary component for box-shaped beam columns according to claim 3, characterized in that: The connecting bottom plate is provided with a second strip-shaped through hole extending in the width direction.

5. An auxiliary component for a submerged arc welding machine for box-shaped beam columns according to claim 1 or 2 or 4, characterized in that: The cross sections of the conversion connecting plate and the weld positioning baffle are both L-shaped.

6. The submerged arc welding machine auxiliary component for box-shaped beam columns according to claim 5, characterized in that: An angle adjusting mechanism rotatably connected by fasteners is further arranged on the top surface of the positioning top plate.

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