阅读说明：本技术 汽车车厢钣金多点自动焊机 (Multi-point automatic welding machine for automobile compartment metal plate ) 是由 丁小生 于 2021-08-31 设计创作，主要内容包括：本发明属于汽车点焊技术领域,尤其涉及一种汽车车厢钣金多点自动焊机,包括置料台、移动地轨、龙门架、电阻单面双点焊接机构和焊接移动机构；置料台设于水平面上以用于放置待焊接的汽车车厢板；移动地轨设于水平面上并位于置料台的旁侧,移动地轨的直线路径方向与置料台的长度方向平行；龙门架活动设置于移动地轨的顶部并沿移动地轨的直线路径方向往复移动；电阻单面双点焊接机构设于龙门架上以用于焊接放置于置料台上的汽车车厢板；焊接移动机构设于移动地轨与龙门架之间的连接处以用于驱动龙门架沿移动地轨的直线路径方向移动；本设备特点是采用移动焊接方式,无需人工操作,实现自动化生产,提高生产效率和产品质量。(The invention belongs to the technical field of automobile spot welding, and particularly relates to an automatic multipoint welding machine for a metal plate of an automobile carriage, which comprises a material placing table, a movable ground rail, a portal frame, a resistance single-side double-spot welding mechanism and a welding moving mechanism, wherein the material placing table is arranged on the material placing table; the material placing table is arranged on a horizontal plane and used for placing an automobile carriage plate to be welded; the moving ground rail is arranged on the horizontal plane and is positioned beside the material placing table, and the linear path direction of the moving ground rail is parallel to the length direction of the material placing table; 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 is used for welding the automobile carriage plate placed on the material placing platform; 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 equipment is characterized in that a mobile welding mode is adopted, manual operation is not needed, automatic production is realized, and the production efficiency and the product quality are improved.)

1. The utility model provides an automatic welding machine of vapour car carriage panel beating multiple spot which characterized in that: the method comprises the following steps:

the material placing table is arranged on a horizontal plane and used for placing an automobile carriage plate to be welded;

the moving ground rail is arranged on a horizontal plane and is positioned beside the material placing table, and the linear path direction of the moving ground rail is parallel to the length direction of the material placing table;

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 automobile carriage plate placed on the material placing table;

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 automatic multipoint welding machine for the sheet metal of the automobile compartment as claimed in claim 1, wherein: the resistance single-side double-spot welding mechanism comprises an X-axis welding mechanism and a Y-axis welding mechanism; the X-axis welding mechanism is arranged on the transverse direction of the portal frame and used for welding the transverse surface of the automobile carriage plate, the moving path direction of the X-axis welding mechanism is parallel to the linear path direction of the moving ground rail, the Y-axis welding mechanism is arranged on the longitudinal direction of the portal frame and used for welding the longitudinal surface of the automobile carriage plate, and the moving path direction of the Y-axis welding mechanism is perpendicular to the linear path direction of the moving ground rail.

3. The automatic multipoint welding machine for the sheet metal of the automobile compartment as claimed in claim 2, wherein: the X-axis welding mechanism comprises two X-axis guide rails, four X-axis sliding blocks, two X-axis sliding plates, two X-axis welding assemblies and two X-axis driving mechanisms; two equal fixed connection in the one end of X axle guide rail in the transverse direction of portal frame, four two liang of settings in groups of X axle slider, and two sets of the one end of X axle slider respectively with two the other end sliding fit of X axle guide rail, two sets of the other end of X axle slider respectively with two the one end fixed connection of X axle slide, two the other end of X axle slide all is equipped with X axle welding assembly, two X axle actuating mechanism respectively with two X axle slide is connected and is driven two X axle slide moves along two the sharp path direction of X axle guide rail.

4. The automatic multipoint welding machine for the sheet metal of the automobile compartment as claimed in claim 3, wherein: the two X-axis welding assemblies have the same structure and comprise an X-axis welding mounting frame, two X-axis welding tongs, two X-axis welding heads, an X-axis welding vertical driving mechanism and two X-axis welding buffering mechanisms; the X-axis welding mounting frame is fixedly connected to the other end of the X-axis sliding plate, the X-axis welding tongs are arranged at the bottom of the X-axis welding mounting frame, the X-axis welding heads are arranged at the bottom of the X-axis welding tongs respectively, the X-axis welding vertical driving mechanism is arranged at the top of the X-axis welding mounting frame, and the X-axis welding buffering mechanism is used for connecting the X-axis welding vertical driving mechanism and the X-axis welding tongs respectively.

5. The automatic multipoint welding machine for the sheet metal of the automobile compartment as claimed in claim 2, wherein: the Y-axis welding mechanism comprises two Y-axis welding devices which are respectively arranged at two ends of the portal frame in the transverse direction; the two Y-axis welding devices have the same structure and respectively comprise a moving seat, two Y-axis guide rails, four Y-axis sliding blocks, two Y-axis sliding plates, two Y-axis welding assemblies and two Y-axis driving mechanisms; two remove the seat and locate respectively the transverse direction both ends of portal frame, two the one end of Y axle guide rail respectively with two remove seat fixed connection, four two liang of group settings of Y axle slider, and two sets of the one end of Y axle slider respectively with two the other end sliding fit of Y axle guide rail, it is two sets of the other end of Y axle slider respectively with two the one end fixed connection of Y axle slide, two the other end of Y axle slide all is equipped with Y axle welded assembly, two Y axle actuating mechanism respectively with two Y axle slide is connected and is driven two Y axle slide is along two the linear path direction of Y axle guide rail removes.

6. The automatic multipoint welding machine for the sheet metal of the automobile compartment as claimed in claim 5, wherein: the two Y-axis welding assemblies have the same structure and comprise a Y-axis welding mounting frame, two Y-axis welding tongs, two Y-axis welding heads, a Y-axis welding vertical driving mechanism and two Y-axis welding buffer mechanisms; the Y-axis welding mounting frame is fixedly connected to the other end of the Y-axis sliding plate, the two Y-axis welding tongs are arranged at the bottom of the Y-axis welding mounting frame, the two Y-axis welding heads are arranged at the bottom of the Y-axis welding tongs respectively, the Y-axis welding vertical driving mechanism is arranged at the top of the Y-axis welding mounting frame, and the two Y-axis welding buffering mechanisms are used for connecting the Y-axis welding vertical driving mechanism and the two Y-axis welding tongs respectively.

7. The automatic multipoint welding machine for the sheet metal of the automobile compartment as claimed in any one of claims 1 to 6, wherein: 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 reduction gearbox, a welding moving gear, a welding moving rack and six welding moving sliding blocks, the two welding guide rails and the welding moving rack are fixedly connected to the top of the moving ground rail, the six welding moving sliding blocks are averagely divided into two groups, one ends of the two groups of welding moving sliding blocks are respectively in sliding fit with the two welding guide rails, the other ends of the two groups of welding moving sliding blocks are respectively fixedly connected with the bottom of the welding moving bottom plate, the welding moving motor and the reduction gearbox are respectively fixedly connected to the top of the welding moving bottom plate, the output end of the welding moving motor is in driving connection with the input end of the reduction gearbox, and the output end of the reduction gearbox is in close fit connection with the welding moving gear, the welding moving gear is meshed with the welding moving rack, and the portal frame is further arranged at the top of the welding moving bottom plate.

8. The automatic multipoint welding machine for the sheet metal of the automobile compartment as claimed in any one of claims 1 to 6, wherein: the material placing table comprises a material placing base and a material placing frame; the material placing base is arranged on a horizontal plane, and the material placing rack is arranged at the top of the material placing base.

9. The automatic multipoint welding machine for the sheet metal of the automobile compartment as claimed in claim 8, wherein: the multi-point automatic welding machine for the automobile compartment metal plate further comprises a plurality of material pressing mechanisms which are used for clamping or loosening the automobile compartment plate to be welded; each pressing mechanism is arranged at the top of the material placing frame.

10. The automatic multipoint welding machine for the sheet metal of the automobile compartment as claimed in claim 8, wherein: the material placing frame comprises a plurality of sliding support rods and a plurality of moving plates; each sliding support rod is fixedly connected to the top of the material placing base, the linear path direction of each sliding support rod is parallel to the linear path direction of the movable ground rail, each movable plate is movably arranged on the top of each sliding support rod, and each movable plate is perpendicular to each movable plate.

Technical Field

The invention belongs to the technical field of automobile spot welding, and particularly relates to an automatic multipoint welding machine for a sheet metal of an automobile compartment.

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 carriage railway carriage or compartment board welding process, by workman manually operation welding process usually, but the length and the width of the carriage railway carriage or compartment board of trailer are comparatively big, and it is 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 an automatic multipoint welding machine for a sheet metal of an automobile carriage, and aims to solve the technical problems that in the prior art, the welding process of carriage plates is generally manually operated by workers, so that the labor intensity of the workers is overhigh, and the quality of the welded carriage plates cannot meet the expected requirements.

In order to achieve the purpose, the embodiment of the invention provides an automatic multipoint welding machine for a metal plate of an automobile carriage, which comprises a material placing table, a movable ground rail, a portal frame, a resistance single-side double-spot welding mechanism and a welding moving mechanism, wherein the material placing table is arranged on the material placing table; the material placing table is arranged on a horizontal plane and used for placing an automobile carriage plate to be welded; the moving ground rail is arranged on a horizontal plane and is positioned beside the material placing table, and the linear path direction of the moving ground rail is parallel to the length direction of the material placing table; 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 automobile carriage plate placed on the material placing table; 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 an X-axis welding mechanism and a Y-axis welding mechanism; the X-axis welding mechanism is arranged on the transverse direction of the portal frame and used for welding the transverse surface of the automobile carriage plate, the moving path direction of the X-axis welding mechanism is parallel to the linear path direction of the moving ground rail, the Y-axis welding mechanism is arranged on the longitudinal direction of the portal frame and used for welding the longitudinal surface of the automobile carriage plate, and the moving path direction of the Y-axis welding mechanism is perpendicular to the linear path direction of the moving ground rail.

Optionally, the X-axis welding mechanism includes two X-axis guide rails, four X-axis sliders, two X-axis sliding plates, two X-axis welding assemblies, and two X-axis driving mechanisms; two equal fixed connection in the one end of X axle guide rail in the transverse direction of portal frame, four two liang of settings in groups of X axle slider, and two sets of the one end of X axle slider respectively with two the other end sliding fit of X axle guide rail, two sets of the other end of X axle slider respectively with two the one end fixed connection of X axle slide, two the other end of X axle slide all is equipped with X axle welding assembly, two X axle actuating mechanism respectively with two X axle slide is connected and is driven two X axle slide moves along two the sharp path direction of X axle guide rail.

Optionally, the two X-axis welding assemblies have the same structure and include an X-axis welding mounting frame, two X-axis welding tongs, two X-axis welding heads, an X-axis welding vertical driving mechanism, and two X-axis welding buffering mechanisms; the X-axis welding mounting frame is fixedly connected to the other end of the X-axis sliding plate, the X-axis welding tongs are arranged at the bottom of the X-axis welding mounting frame, the X-axis welding heads are arranged at the bottom of the X-axis welding tongs respectively, the X-axis welding vertical driving mechanism is arranged at the top of the X-axis welding mounting frame, and the X-axis welding buffering mechanism is used for connecting the X-axis welding vertical driving mechanism and the X-axis welding tongs respectively.

Optionally, the Y-axis welding mechanism includes two Y-axis welding devices, and the two Y-axis welding devices are respectively disposed at two ends of the gantry in the transverse direction; the two Y-axis welding devices have the same structure and respectively comprise a moving seat, two Y-axis guide rails, four Y-axis sliding blocks, two Y-axis sliding plates, two Y-axis welding assemblies and two Y-axis driving mechanisms; two remove the seat and locate respectively the transverse direction both ends of portal frame, two the one end of Y axle guide rail respectively with two remove seat fixed connection, four two liang of group settings of Y axle slider, and two sets of the one end of Y axle slider respectively with two the other end sliding fit of Y axle guide rail, it is two sets of the other end of Y axle slider respectively with two the one end fixed connection of Y axle slide, two the other end of Y axle slide all is equipped with Y axle welded assembly, two Y axle actuating mechanism respectively with two Y axle slide is connected and is driven two Y axle slide is along two the linear path direction of Y axle guide rail removes.

Optionally, the two Y-axis welding assemblies have the same structure and include a Y-axis welding mounting frame, two Y-axis welding tongs, two Y-axis welding heads, a Y-axis welding vertical driving mechanism, and two Y-axis welding buffering mechanisms; the Y-axis welding mounting frame is fixedly connected to the other end of the Y-axis sliding plate, the two Y-axis welding tongs are arranged at the bottom of the Y-axis welding mounting frame, the two Y-axis welding heads are arranged at the bottom of the Y-axis welding tongs respectively, the Y-axis welding vertical driving mechanism is arranged at the top of the Y-axis welding mounting frame, and the two Y-axis welding buffering mechanisms are used for connecting the Y-axis welding vertical driving mechanism and the two Y-axis welding tongs respectively.

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 reduction gearbox, a welding moving gear, a welding moving rack and six welding moving sliding blocks, the two welding guide rails and the welding moving rack are fixedly connected to the top of the moving ground rail, the six welding moving sliding blocks are averagely divided into two groups, one ends of the two groups of welding moving sliding blocks are respectively in sliding fit with the two welding guide rails, the other ends of the two groups of welding moving sliding blocks are respectively fixedly connected with the bottom of the welding moving bottom plate, the welding moving motor and the reduction gearbox are respectively fixedly connected to the top of the welding moving bottom plate, the output end of the welding moving motor is in driving connection with the input end of the reduction gearbox, and the output end of the reduction gearbox is in close fit connection with the welding moving gear, the welding moving gear is meshed with the welding moving rack, and the portal frame is further arranged at the top of the welding moving bottom plate.

Optionally, the material placing table comprises a material placing base and a material placing frame; the material placing base is arranged on a horizontal plane, and the material placing rack is arranged at the top of the material placing base.

Optionally, the multi-point automatic welding machine for the sheet metal of the automobile carriage further comprises a plurality of material pressing mechanisms which are used for clamping or loosening the automobile carriage plate to be welded; each pressing mechanism is arranged at the top of the material placing frame.

Optionally, the material placing frame comprises a plurality of sliding support rods and a plurality of moving plates; each sliding support rod is fixedly connected to the top of the material placing base, the linear path direction of each sliding support rod is parallel to the linear path direction of the movable ground rail, each movable plate is movably arranged on the top of each sliding support rod, and each movable plate is perpendicular to each movable plate.

The one or more technical schemes in the automatic multi-point welding machine for the sheet metal of the automobile compartment provided by the embodiment of the invention at least have one of the following technical effects: the invention relates to an automatic multipoint welding machine for sheet metal of an automobile carriage, which is used for firstly placing an automobile carriage plate to be welded at the top of a material placing table, starting a welding moving mechanism after the material placing is finished, 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 a moving ground rail, because a resistance single-sided double-spot welding mechanism is arranged on the portal frame, the resistance single-sided double-spot welding mechanism can move along with the portal frame in the moving process, the resistance single-sided double-spot welding mechanism can move in the X-axis direction and the Y-axis direction of the top of the material placing table, and the resistance single-sided double-spot welding mechanism can move in the X-axis direction and the Y-axis direction of the top of the material placing table to meet the spot welding requirements of different welding positions of the automobile carriage plate, can satisfy the welding production of length 9800mm, width 2600 mm's car carriage board to need not manual operation, realize automated production, be fit for the welding production of boxcar trade, can reduce welding intensity of labour for carriage 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 an automatic multipoint welding machine for sheet metal of an automobile compartment according to an embodiment of the invention.

Fig. 2 is a schematic structural diagram of an X-axis welding mechanism of an automatic multipoint welding machine for sheet metal of an automobile compartment provided by an embodiment of the invention.

Fig. 3 is a schematic structural diagram of a Y-axis welding mechanism of the automatic multipoint sheet metal welding machine for the automobile compartment provided by the embodiment of the invention.

Fig. 4 is a front view of a welding moving mechanism of the automatic multipoint welding machine for sheet metal of an automobile compartment provided by the embodiment of the invention.

Fig. 5 is a schematic structural diagram of a material placing frame of the automatic multipoint sheet metal welding machine for the automobile compartment according to the embodiment of the invention.

Wherein, in the figures, the respective reference numerals:

10-material placing table 11-material placing base 12-material placing frame

13-pressing mechanism 14-positioning block 15-positioning strip

16-limiting block 20-movable ground rail 30-portal frame

40-resistance single-side double-spot welding mechanism 41-X-axis welding mechanism 42-Y-axis welding mechanism

50-welding moving mechanism 51-welding guide rail 52-welding moving bottom plate

53-welding moving motor 54-reduction gearbox 55-welding moving gear

56-welding moving rack 57-welding moving slide block 121-sliding support rod

122-moving plate 411-X-axis guide 412-X-axis slider

413X-axis sliding plate 414X-axis welding assembly 415X-axis driving mechanism

421-moving seat 422-Y-axis guide rail 423-Y-axis sliding block

424-Y-axis sliding plate 425-Y-axis welding component 426-Y-axis driving mechanism

4141-X-axis welding mounting frame 4142-X-axis welding tongs 4143-X-axis welding head

4144-X-axis welding vertical driving mechanism 4145-X-axis welding buffer mechanism

4251-Y-axis welding mounting rack 4252-Y-axis welding tongs 4253-Y-axis welding head

4254-Y-axis welding vertical driving mechanism 4255-Y-axis welding buffer 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 an embodiment of the invention, as shown in fig. 1, there is provided an automatic multipoint welding machine for sheet metal in a car, comprising a material placing table 10, a movable ground rail 20, a portal frame 30, a resistance single-sided double-spot welding mechanism 40 and a welding moving mechanism 50; the material placing table 10 is arranged on a horizontal plane and used for placing an automobile carriage plate to be welded; the movable ground rail 20 is arranged on a horizontal plane and is positioned beside the material placing table 10, and the linear path direction of the movable ground rail 20 is parallel to the length direction of the material placing table 10; the gantry 30 is movably arranged at the top of the movable ground rail 20 and reciprocates along the linear path direction of the movable ground rail 20; the resistance single-side double-spot welding mechanism 40 is arranged on the portal frame 30 and used for welding the automobile carriage plate placed on the material placing table 10; the welding moving mechanism 50 is disposed at a connection position between the moving ground rail 20 and the gantry 30, and is configured to drive the gantry 30 to move along a linear path direction of the moving ground rail 20.

Specifically, when the multi-point automatic welding machine for automobile carriage metal plates is used, firstly, an automobile carriage plate to be welded is placed at the top of the material placing table 10, after the material placing is completed, the welding moving mechanism 50 is started, the welding moving mechanism 50 moves according to the track of a preset motion program, namely, at this time, the welding moving mechanism 50 drives the portal frame 30 to move along the linear path direction of the moving ground rail 20, because the resistance single-side double-spot welding mechanism 40 is installed on the portal frame 30, the resistance single-side double-spot welding mechanism 40 also moves along with the movement of the portal frame 30 in the moving process, the resistance single-side double-spot welding mechanism 40 can move in the X-axis direction and the Y-axis direction of the top of the material placing table 10, and then the resistance single-side double-spot welding mechanism 40 can move in the X-axis direction and the Y-axis direction of the top of the material placing table 10 to meet the requirements of different welding positions of the automobile carriage plate, this equipment characteristics adopts the removal welding mode, can satisfy the welding production of length 9800mm, width 2600 mm's car carriage board to need not manual operation, realize automated production, be fit for the welding production of boxcar trade, can reduce welding intensity of labour for carriage manufacturing enterprise, improve production efficiency and product quality.

In another embodiment of the present invention, as shown in fig. 1 to 3, the resistance single-sided double-spot welding mechanism 40 includes an X-axis welding mechanism 41 and a Y-axis welding mechanism 42; the X-axis welding mechanism 41 is disposed in the transverse direction of the gantry 30 for welding the transverse surface of the car platform board, the moving path direction of the X-axis welding mechanism 41 is parallel to the linear path direction of the moving ground rail 20, the Y-axis welding mechanism 42 is disposed in the longitudinal direction of the gantry 30 for welding the longitudinal surface of the car platform board, and the moving path direction of the Y-axis welding mechanism 42 is perpendicular to the linear path direction of the moving ground rail 20. Specifically, the resistance single-sided double-spot welding mechanism 40 is composed of an X-axis welding mechanism 41 and a Y-axis welding mechanism 42, so that the movement in the X-axis direction and the Y-axis direction at the top of the material placing table 10 can be realized through the X-axis welding mechanism 41 arranged on the X-axis and the Y-axis welding mechanism 42 arranged on the Y-axis, and then the X-axis welding mechanism 41 and the Y-axis welding mechanism 42 can weld any surface of the car compartment plate in the X-axis or Y-axis direction, so that the limitation of the position is avoided, and the improvement of the welding precision of the car compartment plate is facilitated.

In another embodiment of the present invention, as shown in fig. 1 to 3, the X-axis welding mechanism 41 includes two X-axis guide rails 411, four X-axis sliders 412, two X-axis sliding plates 413, two X-axis welding assemblies 414, and two X-axis driving mechanisms 415; two the equal fixed connection of one end of X axle guide rail 411 in the transverse direction of portal frame 30, four two sets of setting in groups of X axle slider 412, and two sets of one end of X axle slider 412 respectively with two the other end sliding fit of X axle guide rail 411, two sets of the other end of X axle slider 412 respectively with two the one end fixed connection of X axle slide 413, two the other end of X axle slide 413 all is equipped with X axle welding component 414, two X axle actuating mechanism 415 respectively with two X axle slide 413 is connected and is driven two X axle slide 413 moves along two X axle guide rail 411's straight line path direction. Specifically, the X-axis driving mechanism 415 adopts a motor, a gear and a rack matching mode as a driving source, the X-axis driving mechanism 415 is installed on the X-axis sliding plate 413, that is, the X-axis sliding plate 413 can be driven to move along the linear direction of the X-axis guide rail 411, and a plurality of X-axis sliding blocks 412 are arranged between the X-axis sliding plate 413 and the X-axis guide rail 411, so that the X-axis sliding plate 413 can be more stable in the moving process, and the shake of the X-axis welding assembly 414 can be reduced when the X-axis sliding plate 413 drives the X-axis welding assembly 414 to move, which is beneficial to improving the welding precision of the car body panels.

In another embodiment of the present invention, as shown in fig. 1 to 3, the two X-axis welding assemblies 414 have the same structure and include an X-axis welding mounting frame 4141, two X-axis welding tongs 4142, two X-axis welding heads 4143, an X-axis welding vertical driving mechanism 4144, and two X-axis welding buffering mechanisms 4145; the X-axis welding mounting frame 4141 is fixedly connected to the other end of the X-axis sliding plate 413, the two X-axis welding tongs 4142 are both arranged at the bottom of the X-axis welding mounting frame 4141, the two X-axis welding heads 4143 are respectively arranged at the bottoms of the two X-axis welding tongs 4142, the X-axis welding vertical driving mechanism 4144 is arranged at the top of the X-axis welding mounting frame 4141, and the two X-axis welding buffering mechanisms 4145 are respectively used for connecting the X-axis welding vertical driving mechanism 4144 and the two X-axis welding tongs 4142. Specifically, the X-axis welding mounting frame 4141 and the X-axis sliding plate 413 are fixedly connected, so that when the X-axis driving mechanism 415 drives the X-axis sliding plate 413 to move, the X-axis welding mounting frame 4141 is driven to move smoothly, the X-axis welding vertical driving mechanism 4144 is installed at the top of the X-axis welding mounting frame 4141, and the X-axis welding clamp 4142 and the X-axis welding head 4143 are sequentially installed at the bottom of the X-axis welding mounting frame 4141, so that the X-axis welding vertical driving mechanism 4144 can drive the X-axis welding clamp 4142 and the X-axis welding head 4143 to move up and down to approach or separate from the car compartment plate, thereby realizing the welding and separation processes, and the X-axis welding buffer mechanism 4145 is arranged between the X-axis welding vertical driving mechanism 4144 and the X-axis welding clamp 4142 of the device, so that when the acting force output by the X-axis welding buffer mechanism 4144 is too large, the X-axis welding head 4143 directly hits the car compartment plate to cause damage, which is advantageous for protecting the X-axis clamp 4142 and the X-axis horn 4143.

In another embodiment of the present invention, as shown in fig. 1 to 3, the Y-axis welding mechanism 42 includes two Y-axis welding devices, and the two Y-axis welding devices are respectively disposed at two ends of the gantry 30 in the transverse direction; the two Y-axis welding devices have the same structure and respectively comprise a moving seat 421, two Y-axis guide rails 422, four Y-axis sliding blocks 423, two Y-axis sliding plates 424, two Y-axis welding assemblies 425 and two Y-axis driving mechanisms 426; two remove seat 421 and locate respectively portal frame 30's transverse direction both ends, two the one end of Y axle guide rail 422 respectively with two remove seat 421 fixed connection, four two liang of group settings of Y axle slider 423, and two sets of the one end of Y axle slider 423 respectively with two the other end sliding fit of Y axle guide rail 422, it is two sets of the other end of Y axle slider 423 respectively with two the one end fixed connection of Y axle slide 424, two the other end of Y axle slide 424 all is equipped with Y axle welding subassembly 425, two Y axle actuating mechanism 426 respectively with two Y axle slide 424 is connected and drives two Y axle slide 424 is along two the linear path direction of Y axle guide rail 422 removes. Specifically, two Y-axis welding devices are respectively arranged at two ends of the gantry 30 in the transverse direction, and the two Y-axis welding devices can move along the transverse direction of the gantry 30, so that the X-axis direction of the Y-axis welding device on the gantry 30 can be adjusted, and the Y-axis welding device can move in the Y-axis direction on the gantry 30, so that the movement of the Y-axis welding device in the X-axis direction and the Y-axis direction on the gantry 30 is realized, the Y-axis driving mechanism 426 adopts a motor, a gear and a rack matching manner as a driving source, the Y-axis driving mechanism 426 is installed on the Y-axis sliding plate 424, so that the Y-axis sliding plate 424 can be driven to move along the linear direction of the Y-axis guide rail 422, and a plurality of Y-axis sliding blocks 423 are arranged between the Y-axis sliding plate 424 and the Y-axis guide rail 422, so that the Y-axis sliding plate 424 can be more stable in the moving process, and the Y-axis sliding plate 424 can reduce the shaking of the Y-axis welding assembly 425 when the Y-axis welding assembly 425 is driven to move by the Y-axis sliding plate 424 And the welding precision of the automobile carriage plate is improved.

In another embodiment of the present invention, as shown in fig. 1 to 3, the two Y-axis welding assemblies 425 have the same structure and include a Y-axis welding mounting frame 4251, two Y-axis welding tongs 4252, two Y-axis welding heads 4253, a Y-axis welding vertical driving mechanism 4254 and two Y-axis welding buffering mechanisms 4255; the Y-axis welding mounting frame 4251 is fixedly connected to the other end of the Y-axis sliding plate 424, the two Y-axis welding tongs 4252 are arranged at the bottom of the Y-axis welding mounting frame 4251, the two Y-axis welding heads 4253 are arranged at the bottom of the two Y-axis welding tongs 4252 respectively, the Y-axis welding vertical driving mechanism 4254 is arranged at the top of the Y-axis welding mounting frame 4251, and the two Y-axis welding buffering mechanisms 4255 are used for connecting the Y-axis welding vertical driving mechanism 4254 with the two Y-axis welding tongs 4252 respectively. Specifically, the Y-axis welding mounting frame 4251 is fixedly connected with the Y-axis sliding plate 424, so that when the Y-axis driving mechanism 426 drives the Y-axis sliding plate 424 to move, the Y-axis welding mounting frame 4251 is driven to move stably, the Y-axis welding vertical driving mechanism 4254 is installed at the top of the Y-axis welding mounting frame 4251, the Y-axis welding tongs 4252 and the Y-axis welding head 4253 are sequentially installed at the bottom of the Y-axis welding mounting frame 4251, so that the Y-axis welding vertical driving mechanism 4254 can drive the Y-axis welding tongs 4252 and the Y-axis welding head 4253 to move up and down to approach or be away from the car carriage plate, the welding and separation processes are realized, a Y-axis welding buffering mechanism 4255 is arranged between the Y-axis welding vertical driving mechanism 4254 and the Y-axis welding tongs 4252 of the device, and the Y-axis welding buffering mechanism 4255 can avoid the phenomenon that when the acting force output by the Y-axis welding vertical driving mechanism 4254 is too large, the Y-axis welding head 4253 directly hits the car carriage plate to cause damage, the protection of the Y-axis welding tongs 4252 and the Y-axis welding head 4253 is facilitated.

In another embodiment of the present invention, as shown in fig. 1 and 4, the welding moving mechanism 50 includes two welding moving assemblies, which are respectively disposed at the connection between the moving ground rail 20 and the gantry 30; the two welding moving assemblies have the same structure and respectively comprise two welding guide rails 51, a welding moving base plate 52, a welding moving motor 53, a reduction gearbox 54, a welding moving gear 55, a welding moving rack 56 and six welding moving sliders 57, the two welding guide rails 51 and the welding moving rack 56 are respectively and fixedly connected to the top of the moving ground rail 20, the six welding moving sliders 57 are averagely divided into two groups, one ends of the two groups of welding moving sliders 57 are respectively in sliding fit with the two welding guide rails 51, the other ends of the two groups of welding moving sliders 57 are respectively and fixedly connected with the bottom of the welding moving base plate 52, the welding moving motor 53 and the reduction gearbox 54 are respectively and fixedly connected to the top of the welding moving base plate 52, and the output end of the welding moving motor 53 is in driving connection with the input end of the reduction gearbox 54, the output end of the reduction gearbox 54 is tightly matched and connected with the welding moving gear 55, the welding moving gear 55 is meshed and connected with the welding moving rack 56, and the portal frame 30 is further arranged at the top of the welding moving bottom plate 52. Specifically, a welding moving base plate 52 is installed at the bottom of each of two ends of the portal frame 30, a welding moving motor 53, a reduction gearbox 54 and a welding moving gear 55 are installed on the welding moving base plate 52, the welding moving motor 53 and the reduction gearbox 54 are matched to drive the welding moving gear 55 to rotate, the welding moving gear 55 is in meshed connection with a welding moving rack 56 arranged on the moving ground rail 20, so that the portal frame 30 can be driven to move along the linear path direction of the moving ground rail 20, the welding moving gear 55 is a helical gear, the welding moving gear 55 is made of high-quality high-strength alloy steel, and is subjected to surface carburizing and hardening treatment, so that the bearing capacity is strong, the portal frame is durable, and in practical application, the helical gear has the characteristics of smooth transmission, small impact, small vibration, small noise and the like.

In another embodiment of the present invention, as shown in fig. 1 and 5, the material placing table 10 includes a material placing base 11 and a material placing rack 12; the material placing base 11 is arranged on a horizontal plane, and the material placing frame 12 is arranged at the top of the material placing base 11. Specifically, put material base 11 and set up on the horizontal plane, put the bottom of material base 11 and install a plurality of supporting legss, adjust the levelness of putting material base 11 through the position of adjusting a plurality of supporting legss, put the top of material base 11 and install and put work or material rest 12, put and to place the car carriage board that needs the welding on the work or material rest 12 to the size of putting work or material rest 12 sets up big enough, can satisfy length and be 9800mm, and the width is 2600 mm's car carriage board welding production work.

In another embodiment of the present invention, as shown in fig. 1 and 5, the multi-point automatic welding machine for sheet metal of an automobile compartment further includes a plurality of pressing mechanisms 13, each of which is used for clamping or loosening the automobile compartment plate to be welded; each of the pressing mechanisms 13 is disposed on the top of the material placing frame 12. Specifically, fix the position of car carriage board through swager 13 for car carriage board length direction and the ascending position of width direction are restricted, can prevent like this that car carriage board from squinting, and after car carriage board was fixed, carry out quick welding through X axle welding mechanism 41 and Y axle welding mechanism 42 to car carriage board, can improve the welding precision of car carriage board.

In another embodiment of the present invention, as shown in fig. 1 and 5, the material placing frame 12 includes a plurality of sliding support rods 121 and a plurality of moving plates 122; each sliding support rod 121 is fixedly connected to the top of the material placing base 11, the linear path direction of each sliding support rod 121 is parallel to the linear path direction of the movable ground rail 20, each moving plate 122 is movably arranged at the top of each sliding support rod 121, and each moving plate 122 is arranged perpendicular to each moving plate 122. Specifically, a plurality of support bars 121 that slide all fix at the top of putting material base 11, and mutual parallel arrangement between a plurality of support bars 121 that slide, be provided with a plurality of movable plates 122 at a plurality of support bars 121's top that slides, car carriage board can be placed at a plurality of movable plates 122's top, all can dismantle between a plurality of movable plates 122 and a plurality of support bars 121 that slide, consequently, can be convenient for adjust the distance between a plurality of movable plates 122 and come the not unidimensional car carriage board of adaptation, all mutually perpendicular between a plurality of movable plates 122 and a plurality of support bars 121 that slide, the sound construction that forms like this, be favorable to the heavier car carriage board of bearing.

In another embodiment of the present invention, as shown in fig. 1 and 5, the material placing table 10 further includes a plurality of positioning blocks 14 for positioning the car platform board; each of the positioning bars 15 is fixedly connected to the top of each of the moving plates 122. Specifically, a plurality of locating pieces 14 effectively level the convex position of car carriage board, do benefit to contact and tailor-welding between the polylith car carriage board, and the convex position of car carriage board obtains effectual correction before the welding is accomplished all the time, can not bounce back under restraint such as welding stress, strengthening rib, effectively ensures the appearance quality in carriage.

In another embodiment of the present invention, as shown in fig. 1 and 5, the material placing table 10 further includes a plurality of positioning bars 15, each of which is used for positioning a car body panel; each of the positioning bars 15 is fixedly connected to the top of each of the moving plates 122. Specifically, a plurality of location strips 15 effectively level the convex position of car carriage board, do benefit to contact and tailor-welding between the polylith car carriage board, and the convex position of car carriage board obtains effectual correction before the welding is accomplished all the time, can not bounce back under restraint such as welding stress, strengthening rib, effectively ensures the appearance quality in carriage.

In another embodiment of the present invention, as shown in fig. 1 and 5, the material placing table 10 further includes a plurality of limiting blocks 16 for limiting the car body panel; each stopper 16 is disposed on the top of each moving plate 122. Specifically, a plurality of stoppers 16 effectively prevent the skew of car carriage board for car carriage board length direction and the ascending position in width direction are restricted, can prevent the skew of car carriage board like this, and after the work that the car carriage board was spacing in the settlement tends to, carry out quick welding to car carriage board through X axle welding mechanism 41 and Y axle welding mechanism 42, can improve the welding precision of car carriage board.

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.