CN113618215A - Multi-point automatic welding machine for trailer chassis - Google Patents
Multi-point automatic welding machine for trailer chassis Download PDFInfo
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- CN113618215A CN113618215A CN202111008788.7A CN202111008788A CN113618215A CN 113618215 A CN113618215 A CN 113618215A CN 202111008788 A CN202111008788 A CN 202111008788A CN 113618215 A CN113618215 A CN 113618215A
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- 238000003466 welding Methods 0.000 title claims abstract description 326
- 230000007246 mechanism Effects 0.000 claims abstract description 109
- 238000003825 pressing Methods 0.000 claims description 33
- 230000000712 assembly Effects 0.000 claims description 15
- 238000000429 assembly Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 10
- 238000005476 soldering Methods 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 8
- 230000003028 elevating effect Effects 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 21
- 238000005493 welding type Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
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Abstract
The invention belongs to the technical field of automobile spot welding, and particularly relates to a multi-point automatic welding machine for a trailer chassis, which comprises a movable ground rail, a portal frame, a resistance single-side double-spot welding mechanism and a welding moving mechanism, wherein the portal frame is fixedly connected with the movable ground rail; the movable ground rail is arranged on a horizontal plane, and the linear path direction of the movable ground rail is parallel to the length direction of the trailer chassis; the portal frame is movably arranged at the top of the movable ground rail and reciprocates along the linear path direction of the movable ground rail; the resistance single-side double-spot welding mechanism is arranged on the portal frame and used for welding the trailer chassis; the welding moving mechanism is arranged at the joint between the moving ground rail and the portal frame and is used for driving the portal frame to move along the linear path direction of the moving ground rail; the movable welding type trailer chassis frame welding equipment has the advantages that a movable welding mode is adopted, manual operation is not needed, automatic production is achieved, automatic assembly line production of the trailer chassis frame is achieved by connecting a chassis frame production line, welding of frames of chassis with different heights from top to bottom is also achieved, and production efficiency and product quality are improved.
Description
Technical Field
The invention belongs to the technical field of automobile spot welding, and particularly relates to a multi-point automatic welding machine for a trailer chassis.
Background
Currently, spot welding is a high-speed, economical joining method. It is suitable for manufacturing stamped and rolled sheet metal components which can be lapped, whose joints do not require gas tightness and whose thickness is small, and can be used for welding individual points on the contact surfaces of the weldments at the joints.
Spot welding is generally classified into two major types, double-sided spot welding and single-sided spot welding. When the double-sided spot welding is carried out, the electrode feeds power to the welding position from two sides of the workpiece. In a typical double-sided spot welding mode, electrode impressions are formed on two sides of a workpiece, and a conducting plate with a large welding area is used as a lower electrode, so that the impressions of the workpiece below can be eliminated or reduced, and the double-sided spot welding method is commonly used for spot welding of decorative panels.
During single-side spot welding, the electrodes are fed from the same side of a workpiece to be welded, the single-side spot welding mode is divided into single-side single-point spot welding and single-side double-point spot welding, the single-side single-point spot welding is adopted, and the electrodes without welding spots are large in diameter and large in contact surface so as to reduce current density. Single-side double-spot welding, wherein the current does not pass through a welding area, and single-side double-spot welding is widely applied in mass production. The power can be supplied by a transformer, each pair of electrodes presses the workpiece in turn, or each pair of electrodes is supplied by a separate transformer, and all the electrodes press the workpiece at the same time, so that the application is wide.
In current trailer chassis welding process, by workman manually operation welding process usually, but the length and the width of the trailer chassis of traction trailer are comparatively big, and inconvenient by manual welding's mode, intensity of labour is great, and welding quality is lower moreover, is unfavorable for production.
Disclosure of Invention
The invention aims to provide a multi-point automatic welding machine for a trailer chassis, and aims to solve the technical problems that in the prior art, the welding process of the trailer chassis is generally manually operated by workers, so that the labor intensity of the workers is overhigh, and the quality of the welded trailer chassis cannot meet the expected requirement.
In order to achieve the purpose, the embodiment of the invention provides a multi-point automatic welding machine for a trailer chassis, which comprises a movable ground rail, a portal frame, a resistance single-side double-point welding mechanism and a welding moving mechanism, wherein the resistance single-side double-point welding mechanism is arranged on the portal frame; the movable ground rail is arranged on a horizontal plane, and the linear path direction of the movable ground rail is parallel to the length direction of the trailer chassis; the portal frame is movably arranged at the top of the movable ground rail and reciprocates along the linear path direction of the movable ground rail; the resistance single-side double-spot welding mechanism is arranged on the portal frame and used for welding a trailer chassis; the welding moving mechanism is arranged at the joint between the moving ground rail and the portal frame and is used for driving the portal frame to move along the linear path direction of the moving ground rail.
Optionally, the resistance single-sided double-spot welding mechanism comprises a plurality of welding linear guide rails and a plurality of X-axis welding mechanisms; one end of each welding linear guide rail is fixedly connected to the X-axis direction of the portal frame, the other end of each welding linear guide rail is respectively connected with each X-axis welding mechanism and drives each X-axis welding mechanism to move along the X-axis direction of the portal frame so as to be used for welding the transverse surface of the trailer chassis, and the moving path direction of each X-axis welding mechanism is perpendicular to the linear path direction of the moving ground rail.
Optionally, the number of the welding linear guide rails is two; two sets of welding linear guide's the same and all include X axle guide rail and eight X axle sliders, the one end fixed connection of X axle guide rail in the X axle direction of portal frame, eight the one end of X axle slider all with X axle guide rail sliding fit, and eight two liang of group settings of X axle slider, two liang of group the other end of X axle slider respectively with each X axle welding mechanism drive is connected.
Optionally, the two sets of X-axis guide rails are both fixedly connected to the side wall of the gantry, and the two sets of X-axis guide rails are arranged in parallel.
Optionally, each of the X-axis welding mechanisms has the same structure and includes an X-axis sliding plate, an X-axis welding assembly, and an X-axis driving mechanism; one end of each X-axis sliding plate is fixedly connected with the other end of each X-axis sliding block in a pairwise mode, the other end of each X-axis sliding plate is provided with the X-axis welding assembly, and each X-axis driving mechanism is connected with each X-axis sliding plate respectively and drives each X-axis sliding plate to move along the linear path direction of the two groups of X-axis guide rails.
Optionally, each of the X-axis welding assemblies has the same structure and includes an X-axis welding mounting frame, two electrical components, two X-axis welding tongs, two X-axis welding heads, and two X-axis welding vertical driving mechanisms; x axle welding mounting bracket fixed connection in the other end of X axle slide, two X axle soldering turret all locates the bottom of X axle welding mounting bracket, two X axle bonding tool locates two respectively the bottom of X axle soldering turret, two electrical components locates respectively the both ends of X axle welding mounting bracket, and two electrical components respectively with two X axle soldering turret and two X axle bonding tool electricity is connected, two X axle welding vertical actuating mechanism all locates the top of X axle welding mounting bracket, and two X axle welding vertical actuating mechanism's output is respectively with two X axle soldering turret is connected and drives two X axle soldering turret reciprocates.
Optionally, the trailer chassis multi-point automatic welding machine further comprises a plurality of limiting roller groups which are used for limiting the X-axis welding mounting frames; each limiting roller group is identical in structure and comprises a limiting installation seat, a limiting connecting plate and two limiting wheels, each limiting installation seat is fixedly connected to the side wall of each X-axis welding installation frame, each limiting connecting plate is fixedly connected with each limiting installation seat, two ends of each limiting connecting plate are connected with the two limiting wheels in a rolling mode, and each limiting wheel is connected with the portal frame in a rolling mode.
Optionally, the welding moving mechanism comprises two welding moving assemblies, and the two welding moving assemblies are respectively arranged at the connecting positions between the moving ground rail and the portal frame; the two welding moving assemblies have the same structure and respectively comprise two welding guide rails, a welding moving bottom plate, a welding moving motor, a motor fixing seat, a welding moving gear, a welding moving rack and eight welding moving sliders, the two welding guide rails and the welding moving rack are fixedly connected to the top of the moving ground rail, the eight welding moving sliders are averagely divided into two groups, one ends of the two welding moving sliders are respectively in sliding fit with the two welding guide rails, the other ends of the two welding moving sliders are fixedly connected with the bottom of the welding moving bottom plate, the motor fixing seat is fixedly connected to the top of the welding moving bottom plate, a body of the welding moving motor is fixedly connected to the top of the motor fixing seat, and an output end of the welding moving motor is tightly matched and connected with the welding moving gear, the welding moving gear is meshed with the welding moving rack.
Optionally, the gantry comprises a crane, two moving frames and two lifting mechanisms; two the removal frame all the activity set up in remove the top of ground rail, two elevating system locates two respectively remove on the frame, two elevating system's output all with the crane is connected and drive the crane oscilaltion.
Optionally, the multi-point automatic welding machine for the trailer chassis further comprises two pressing mechanisms which are used for pressing the trailer chassis; the two pressing mechanisms have the same structure and respectively comprise a pressing seat, a pressing linear guide rail, a pressing plate and a pressing driving assembly; the two compressing seats are respectively fixedly connected with the two side walls of the movable frame, one ends of the two compressing linear guide rails are respectively arranged on the two side walls of the compressing seats, the other ends of the two compressing linear guide rails are respectively fixedly connected with the two compressing plates, and the two compressing drive assemblies are respectively connected with the two compressing plates and drive the two compressing plates to ascend and descend.
One or more technical schemes in the trailer chassis multipoint automatic welding machine provided by the embodiment of the invention at least have one of the following technical effects: the invention relates to a multi-point automatic welding machine for a trailer chassis, which is used for firstly placing a frame and a bottom plate of the trailer chassis to be welded at the side of a movable ground rail, starting a welding moving mechanism after discharging, wherein the welding moving mechanism can move according to the track of a preset motion program, namely, the welding moving mechanism can drive a portal frame to move along the linear path direction of the movable ground rail, and because the portal frame is provided with a resistance single-side double-point welding mechanism, the resistance single-side double-point welding mechanism can also move along the Y-axis direction of the top of the frame and the bottom plate in the moving process of the portal frame, the resistance single-side double-point welding mechanism can move along the X-axis direction of the top of the frame and the top of the bottom plate, so that the resistance single-side double-point welding mechanism can move in the X-axis direction and the Y-axis direction of the top of the frame and the top of the bottom plate to meet the requirements of spot welding at different welding positions of the trailer chassis, this equipment characteristics adopts the removal welding mode, can satisfy 13000mm, 2520 mm's trailer chassis's welding production of length to need not manual operation, realize automated production, through linking chassis frame production water line, realize the automatic assembly line production of trailer chassis frame, the welding of the frame on the chassis frame of also being suitable for not co-altitude chassis from top to bottom simultaneously, this equipment is fit for the welding production of heavy load trailer trade, can reduce welding intensity of labour for trailer manufacturing enterprise, improve production efficiency and product quality.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a trailer chassis multipoint automatic welding machine provided by an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a resistance single-sided double-spot welding mechanism of a trailer chassis multipoint automatic welding machine according to an embodiment of the invention.
Fig. 3 is a front view of a welding moving mechanism of a trailer chassis multipoint automatic welding machine according to an embodiment of the invention.
Fig. 4 is a schematic structural diagram of a gantry and a pressing mechanism of a trailer chassis multipoint automatic welding machine provided by an embodiment of the invention.
Wherein, in the figures, the respective reference numerals:
10-moving ground rail 20-portal frame 21-lifting frame
22-moving frame 23-lifting mechanism 24-pressing mechanism
30-resistance single-side double-spot welding mechanism 31-welding linear guide rail 32-X-axis welding mechanism
33-limiting roller 40-welding moving mechanism 41-welding guide rail
42-welding moving bottom plate 43-welding moving motor 44-motor fixing seat
45-welding moving gear 46-welding moving rack 47-welding moving slide block
241-pressing seat 242-pressing linear guide rail 243-pressing plate
244-pressing drive assembly 311-X-axis guide rail 312-X-axis sliding block
321-X-axis sliding plate 322-X-axis welding assembly 323-X-axis driving mechanism
331-limiting mounting base 332-limiting connecting plate 333-limiting wheel
2211, lifting linear guide rail 3221, X-axis welding mounting rack 3222 and electrical components
3223-X-axis electrode holder 3224-X-axis welding head 3225-X-axis welding vertical driving mechanism.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the invention.
In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In one embodiment of the invention, as shown in fig. 1, the device comprises a movable ground rail 10, a portal frame 20, a resistance single-sided double-spot welding mechanism 30 and a welding moving mechanism 40; the movable ground rail 10 is arranged on a horizontal plane, and the linear path direction of the movable ground rail 10 is parallel to the length direction of the trailer chassis; the gantry 20 is movably arranged at the top of the movable ground rail 10 and reciprocates along the linear path direction of the movable ground rail 10; the resistance single-side double-spot welding mechanism 30 is arranged on the portal frame 20 and used for welding a trailer chassis; the welding moving mechanism 40 is disposed at a connection position between the moving ground rail 10 and the gantry 20, and is used for driving the gantry 20 to move along a linear path direction of the moving ground rail 10.
Specifically, when the multi-point automatic welding machine for the trailer chassis is used, firstly, a frame and a bottom plate of the trailer chassis to be welded are placed at the side of the movable ground rail 10, after discharging is completed, the welding moving mechanism 40 is started, the welding moving mechanism 40 moves according to the track of a preset motion program, namely, at this time, the welding moving mechanism 40 drives the portal frame 20 to move along the linear path direction of the movable ground rail 10, because the resistance single-face double-point welding mechanism 30 is installed on the portal frame 20, the resistance single-face double-point welding mechanism 30 also moves along the Y-axis direction of the top of the frame and the bottom plate in the moving process of the portal frame 20, the resistance single-face double-point welding mechanism 30 can move in the X-axis direction of the top of the frame and the top of the bottom plate, and then the resistance single-face double-point welding mechanism 30 can move in the X-axis direction and the Y-axis direction of the top of the frame and the top of the bottom plate to meet the requirements of different welding positions of the trailer chassis, this equipment characteristics adopts the removal welding mode, can satisfy 13000mm, 2520 mm's trailer chassis's welding production of length to need not manual operation, realize automated production, through linking chassis frame production water line, realize the automatic assembly line production of trailer chassis frame, the welding of the frame on the chassis frame of also being suitable for not co-altitude chassis from top to bottom simultaneously, this equipment is fit for the welding production of heavy load trailer trade, can reduce welding intensity of labour for trailer manufacturing enterprise, improve production efficiency and product quality.
In another embodiment of the present invention, as shown in fig. 1-2, the resistance single-sided double spot welding mechanism 30 includes a plurality of linear guide rails and a plurality of X-axis welding mechanisms 32; one end of each welding linear guide rail 31 is fixedly connected to the X-axis direction of the gantry 20, the other end of each welding linear guide rail 31 is connected to each X-axis welding mechanism 32 respectively and drives each X-axis welding mechanism 32 to move along the X-axis direction of the gantry 20 so as to weld the transverse surface of the trailer chassis, and the moving path direction of the X-axis welding mechanism 32 is perpendicular to the linear path direction of the moving ground rail 10. Specifically, the resistance single-side double-spot welding mechanism 30 is composed of two welding linear guide rails 31 and four X-axis welding mechanisms 32, the two welding linear guide rails 31 are all arranged in the X-axis direction of the portal frame 20, the four X-axis welding mechanisms 32 are in sliding fit with the two welding linear guide rails 31, so that the four X-axis welding mechanisms 32 can move in the X-axis direction of the portal frame 20, and thus, the four X-axis welding mechanisms 32 can weld any surface of the trailer chassis in the X-axis direction, and are not limited by positions, and the improvement of the welding precision of the trailer chassis is facilitated.
In another embodiment of the present invention, as shown in fig. 1 to 2, the number of the welding linear guides 31 is two; the two sets of welding linear guide 31's structure is the same and all includes X axle guide 311 and eight X axle sliders 312, the one end fixed connection of X axle guide 311 in portal frame 20's X axle direction, eight the one end of X axle slider 312 all with X axle guide 311 sliding fit, and eight two liang of group settings of X axle slider 312, two liang of group the other end of X axle slider 312 respectively with each X axle welding mechanism 32 drive is connected. Specifically, two sets of welding linear guide 31's structure is the same and constitute by an X axle guide 311 and eight X axle sliders 312, eight X axle sliders 312 are two liang set up in groups, and two liang set up X axle sliders 312 on two X axle guide 311 are all installed on same X axle welding mechanism 32 in groups, same X axle welding mechanism 32 will be driven by four X axle sliders 312 so, X axle welding mechanism 32 can be more steady at the in-process that removes like this, can reduce X axle welding mechanism 32's shake, be favorable to improving trailer chassis welded precision.
In another embodiment of the present invention, as shown in fig. 1 to 2, two sets of the X-axis guide rails 311 are both fixedly connected to the side wall of the gantry 20, and the two sets of the X-axis guide rails 311 are arranged in parallel. Specifically, two sets of X-axis guide rails 311 are arranged in parallel on the side wall of the gantry 20, which is beneficial to being installed in cooperation with four X-axis welding mechanisms 32.
In another embodiment of the present invention, as shown in fig. 1 to 2, each of the X-axis welding mechanisms 32 has the same structure and includes an X-axis sliding plate 321, an X-axis welding assembly 322, and an X-axis driving mechanism 323; one end of each X-axis sliding plate 321 is fixedly connected to the other end of each group of X-axis sliding blocks 312, the other end of each X-axis sliding plate 321 is provided with the X-axis welding assembly 322, and each X-axis driving mechanism 323 is connected to each X-axis sliding plate 321 and drives each X-axis sliding plate 321 to move along the linear path direction of two groups of X-axis guide rails 311. Specifically, X axle slide 321 and four X axle slider 312 fixed connection, X axle actuating mechanism 323 adopts the motor, gear and rack complex mode come as the driving source, install X axle actuating mechanism 323 on X axle slide 321, can drive X axle slide 321 and remove along the linear direction of X axle guide rail 311, and all be equipped with four X axle sliders 312 between each X axle slide 321 and two X axle guide rails 311, X axle slide 321 can be more steady at the in-process that removes like this, X axle slide 321 just can reduce the shake of X axle welding subassembly 322 when driving X axle welding subassembly 322 and remove, be favorable to improving trailer chassis welded precision.
In another embodiment of the present invention, as shown in fig. 1 to 2, each of the X-axis welding assemblies 322 has the same structure and includes an X-axis welding mounting frame 3221, two electrical components 3222, two X-axis welding tongs 3223, two X-axis welding heads 3224, and two X-axis welding vertical driving mechanisms 3225; the X-axis welding mounting frame 3221 is fixedly connected to the other end of the X-axis sliding plate 321, the two X-axis welding tongs 3223 are all disposed at the bottom of the X-axis welding mounting frame 3221, the two X-axis welding heads 3224 are respectively disposed at the bottoms of the two X-axis welding tongs 3223, the two electrical components 3222 are respectively disposed at two ends of the X-axis welding mounting frame 3221, the two electrical components 3222 are respectively electrically connected to the two X-axis welding tongs 3223 and the two X-axis welding heads 3224, the two X-axis welding vertical driving mechanisms 3225 are all disposed at the top of the X-axis welding mounting frame 3221, and output ends of the two X-axis welding vertical driving mechanisms 3225 are respectively connected to the two X-axis welding tongs 3223 and drive the two X-axis welding tongs 3223 to move up and down. Specifically, the X-axis welding mounting frame 3221 and the X-axis sliding plate 321 are fixedly connected, so when the X-axis driving mechanism 323 drives the X-axis sliding plate 321 to move, the X-axis welding mounting frame 3221 is also driven to move stably, two X-axis welding vertical driving mechanisms 3225 are installed at the top of the X-axis welding mounting frame 3221, two X-axis welding tongs 3223 and two X-axis welding heads 3224 are installed at the bottoms of the two X-axis welding mounting frames 3221, so the two X-axis welding vertical driving mechanisms 3225 can drive the four X-axis welding tongs 3223 and the four X-axis welding heads 3224 to move up and down to be close to or far away from the trailer chassis, so that the welding and separation processes are realized, the same electrical component 3222 is electrically connected with the two X-axis welding tongs 3223 and the two X-axis welding heads 3224, and is prepared for welding the X-axis welding heads 3224.
In another embodiment of the invention, as shown in fig. 1-2, the trailer chassis multipoint automatic welding machine further comprises a plurality of limiting rollers 33 which are used for limiting each X-axis welding mounting rack 3221; each limiting roller 33 group has the same structure and comprises a limiting mounting seat 331, a limiting connecting plate 332 and two limiting wheels 333, each limiting mounting seat 331 is respectively and fixedly connected to the side wall of each X-axis welding mounting frame 3221, each limiting connecting plate 332 is respectively and fixedly connected to each limiting mounting seat 331, two limiting wheels 333 are respectively and rotatably connected to two ends of each limiting connecting plate 332, and each limiting wheel 333 is in rolling connection with the portal frame 20. Specifically, all install a spacing mount pad 331 on the lateral wall of each X axle welding mounting bracket 3221 front end, a spacing connecting plate 332 is installed again to the front end of each spacing mount pad 331, spacing wheel 333 is installed respectively at the both ends of spacing connecting plate 332, two spacing wheels 333 simultaneously with the bottom butt of portal frame 20, when X axle slide 321 drive X axle welding mounting bracket 3221 removed, because spacing wheel 333 all the time with the portal frame 20 butt, be favorable to guaranteeing X axle welding mounting bracket 3221 smooth movement, reduce the phenomenon of shake.
In another embodiment of the present invention, as shown in fig. 1 and 3, the welding moving mechanism 40 includes two welding moving assemblies, which are respectively disposed at the connection between the moving ground rail 10 and the gantry 20; the two welding moving assemblies have the same structure and respectively comprise two welding guide rails 41, a welding moving base plate 42, a welding moving motor 43, a motor fixing seat 44, a welding moving gear 45, a welding moving rack 46 and eight welding moving sliders 47, the two welding guide rails 41 and the welding moving rack 46 are fixedly connected to the top of the moving ground rail 10, the eight welding moving sliders 47 are averagely divided into two groups, one ends of the two welding moving sliders 47 are respectively in sliding fit with the two welding guide rails 41, the other ends of the two welding moving sliders 47 are respectively fixedly connected with the bottom of the welding moving base plate 42, the motor fixing seat 44 is fixedly connected to the top of the welding moving base plate 42, the body of the welding moving motor 43 is fixedly connected to the top of the motor fixing seat 44, and the output end of the welding moving motor 43 is tightly connected with the welding moving gear 45, the welding moving gear 45 is engaged with the welding moving rack 46. Specifically, a welding moving base plate 42 is installed at the bottom of each of two ends of the portal frame 20, a motor fixing seat 44, a welding moving motor 43 and a welding moving gear 45 are installed on the welding moving base plate 42, the welding moving motor 43 and the motor fixing seat 44 are matched to drive the welding moving gear 45 to rotate, the welding moving gear 45 is meshed with a welding moving rack 46 arranged on the moving ground rail 10, and therefore the portal frame 20 can be driven to move along the linear path direction of the moving ground rail 10, the welding moving gear 45 is a helical gear, the welding moving gear 45 is made of high-quality high-strength alloy steel, and is subjected to surface carburizing and hardening treatment, high in bearing capacity and durable in use.
In another embodiment of the present invention, as shown in fig. 1 and 4, the gantry 20 includes a crane 21, two moving frames 22 and two lifting mechanisms 23; two the removal frame 22 all the activity set up in remove the top of ground rail 10, two elevating system 23 is located two respectively on the removal frame 22, two the output of elevating system 23 all with crane 21 is connected and drive crane 21 oscilaltion. Specifically, a lifting frame 21 is installed on the top of two moving frames 22, the two moving frames 22 are movably arranged on the top of the moving ground rail 10, so that the two moving frames 22 can stably move along the linear path direction of the moving ground rail 10, two lifting mechanisms 23 are installed between the two moving frames 22 and the lifting frame 21, the two lifting mechanisms 23 are respectively installed on the two moving frames 22, so that the two moving frames 22 can simultaneously drive the lifting frame 21 to lift up and down, eight lifting linear guide rails 2211 are arranged between the two moving frames 22 and the lifting frame 21, the eight lifting linear guide rails 2211 are symmetrically arranged at the left end and the right end of the lifting frame 21, that is, four lifting linear guide rails 2211 are arranged at the same end of the lifting frame 21, the four lifting linear guide rails 2211 are arranged at the front side and the back side of the same end of the lifting frame 21, and the two lifting linear guide rails 2211 are respectively arranged at the front side and the back side of the same end of the lifting frame 21, therefore, the two lifting mechanisms 23 can stably drive the lifting frame 21 to ascend and descend, the lifting frame 21 is provided with the X-axis welding mechanisms 32, and the lifting frame 21 can drive the X-axis welding mechanisms 32 to ascend and descend so as to weld trailer chassis with different heights, and welding precision is improved.
In another embodiment of the present invention, as shown in fig. 1 and 4, the trailer chassis multipoint automatic welding machine further comprises two hold-down mechanisms 24 each for holding down the trailer chassis; the two pressing mechanisms 24 have the same structure and each include a pressing base 241, a pressing linear guide rail 242, a pressing plate 243 and a pressing driving assembly 244; the two pressing seats 241 are respectively and fixedly connected with the side walls of the two moving frames 22, one end of each of the two pressing linear guide rails 242 is respectively arranged on the side wall of the corresponding pressing seat 241, the other end of each of the two pressing linear guide rails 242 is respectively and fixedly connected with the two pressing plates 243, and the two pressing driving assemblies 244 are respectively connected with the two pressing plates 243 and drive the two pressing plates 243 to ascend and descend. Specifically, the position of the trailer chassis is fixed through the two hold-down mechanisms 24, the two hold-down driving assemblies 244 respectively drive the two hold-down bases 241 to move up and down along the linear path direction of the hold-down linear guide rail 242, and the two hold-down bases 241 are respectively provided with one hold-down plate 243, so that the two hold-down driving assemblies 244 can respectively drive the two hold-down plates 243 to move up and down so as to hold down or loosen the trailer chassis, when the trailer chassis is held down by the two hold-down plates 243, the positions of the trailer chassis in the length direction and the width direction are limited, so that the trailer chassis can be prevented from shifting, after the trailer chassis is fixed, the trailer chassis is rapidly welded through the X-axis welding mechanism 32, and the welding precision of the trailer chassis can be improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a trailer chassis multiple spot automatic weld machine which characterized in that: the method comprises the following steps:
the moving ground rail is arranged on a horizontal plane, and the linear path direction of the moving ground rail is parallel to the length direction of the trailer chassis;
the portal frame is movably arranged at the top of the movable ground rail and reciprocates along the linear path direction of the movable ground rail;
the resistance single-side double-spot welding mechanism is arranged on the portal frame and used for welding a trailer chassis;
and the welding moving mechanism is arranged at the joint between the movable ground rail and the portal frame and is used for driving the portal frame to move along the linear path direction of the movable ground rail.
2. The trailer chassis multipoint automatic welding machine of claim 1, wherein: the resistance single-side double-spot welding mechanism comprises a plurality of welding linear guide rails and a plurality of X-axis welding mechanisms; one end of each welding linear guide rail is fixedly connected to the X-axis direction of the portal frame, the other end of each welding linear guide rail is respectively connected with each X-axis welding mechanism and drives each X-axis welding mechanism to move along the X-axis direction of the portal frame so as to be used for welding the transverse surface of the trailer chassis, and the moving path direction of each X-axis welding mechanism is perpendicular to the linear path direction of the moving ground rail.
3. The trailer chassis multipoint automatic welding machine of claim 2, wherein: the number of the welding linear guide rails is two; two sets of welding linear guide's the same and all include X axle guide rail and eight X axle sliders, the one end fixed connection of X axle guide rail in the X axle direction of portal frame, eight the one end of X axle slider all with X axle guide rail sliding fit, and eight two liang of group settings of X axle slider, two liang of group the other end of X axle slider respectively with each X axle welding mechanism drive is connected.
4. The trailer chassis multipoint automatic welding machine of claim 3, wherein: the two groups of X-axis guide rails are fixedly connected to the side wall of the portal frame and arranged in parallel.
5. The trailer chassis multipoint automatic welding machine of claim 3, wherein: the X-axis welding mechanisms are identical in structure and comprise X-axis sliding plates, X-axis welding assemblies and X-axis driving mechanisms; one end of each X-axis sliding plate is fixedly connected with the other end of each X-axis sliding block in a pairwise mode, the other end of each X-axis sliding plate is provided with the X-axis welding assembly, and each X-axis driving mechanism is connected with each X-axis sliding plate respectively and drives each X-axis sliding plate to move along the linear path direction of the two groups of X-axis guide rails.
6. The trailer chassis multipoint automatic welding machine of claim 5, wherein: the X-axis welding assemblies are identical in structure and respectively comprise an X-axis welding mounting frame, two electrical elements, two X-axis welding tongs, two X-axis welding heads and two X-axis welding vertical driving mechanisms; x axle welding mounting bracket fixed connection in the other end of X axle slide, two X axle soldering turret all locates the bottom of X axle welding mounting bracket, two X axle bonding tool locates two respectively the bottom of X axle soldering turret, two electrical components locates respectively the both ends of X axle welding mounting bracket, and two electrical components respectively with two X axle soldering turret and two X axle bonding tool electricity is connected, two X axle welding vertical actuating mechanism all locates the top of X axle welding mounting bracket, and two X axle welding vertical actuating mechanism's output is respectively with two X axle soldering turret is connected and drives two X axle soldering turret reciprocates.
7. The trailer chassis multipoint automatic welding machine of claim 6, wherein: the trailer chassis multi-point automatic welding machine also comprises a plurality of limiting roller groups which are used for limiting the X-axis welding mounting frames; each limiting roller group is identical in structure and comprises a limiting installation seat, a limiting connecting plate and two limiting wheels, each limiting installation seat is fixedly connected to the side wall of each X-axis welding installation frame, each limiting connecting plate is fixedly connected with each limiting installation seat, two ends of each limiting connecting plate are connected with the two limiting wheels in a rolling mode, and each limiting wheel is connected with the portal frame in a rolling mode.
8. The multi-point automatic welding machine for the trailer chassis according to any one of claims 1 to 7, characterized in that: the welding moving mechanism comprises two welding moving components which are respectively arranged at the connecting part between the moving ground rail and the portal frame; the two welding moving assemblies have the same structure and respectively comprise two welding guide rails, a welding moving bottom plate, a welding moving motor, a motor fixing seat, a welding moving gear, a welding moving rack and eight welding moving sliders, the two welding guide rails and the welding moving rack are fixedly connected to the top of the moving ground rail, the eight welding moving sliders are averagely divided into two groups, one ends of the two welding moving sliders are respectively in sliding fit with the two welding guide rails, the other ends of the two welding moving sliders are fixedly connected with the bottom of the welding moving bottom plate, the motor fixing seat is fixedly connected to the top of the welding moving bottom plate, a body of the welding moving motor is fixedly connected to the top of the motor fixing seat, and an output end of the welding moving motor is tightly matched and connected with the welding moving gear, the welding moving gear is meshed with the welding moving rack.
9. The trailer chassis multipoint automatic welding machine of claim 8, wherein: the portal frame comprises a lifting frame, two moving frames and two lifting mechanisms; two the removal frame all the activity set up in remove the top of ground rail, two elevating system locates two respectively remove on the frame, two elevating system's output all with the crane is connected and drive the crane oscilaltion.
10. The trailer chassis multipoint automatic welding machine of claim 9, wherein: the multi-point automatic welding machine for the trailer chassis further comprises two pressing mechanisms which are used for pressing the trailer chassis; the two pressing mechanisms have the same structure and respectively comprise a pressing seat, a pressing linear guide rail, a pressing plate and a pressing driving assembly; the two compressing seats are respectively fixedly connected with the two side walls of the movable frame, one ends of the two compressing linear guide rails are respectively arranged on the two side walls of the compressing seats, the other ends of the two compressing linear guide rails are respectively fixedly connected with the two compressing plates, and the two compressing drive assemblies are respectively connected with the two compressing plates and drive the two compressing plates to ascend and descend.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111008788.7A CN113618215A (en) | 2021-08-31 | 2021-08-31 | Multi-point automatic welding machine for trailer chassis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111008788.7A CN113618215A (en) | 2021-08-31 | 2021-08-31 | Multi-point automatic welding machine for trailer chassis |
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| CN113618215A true CN113618215A (en) | 2021-11-09 |
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| CN202111008788.7A Pending CN113618215A (en) | 2021-08-31 | 2021-08-31 | Multi-point automatic welding machine for trailer chassis |
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