CN203471183U - Welding device and automatic welding machine with welding device - Google Patents

Abstract

The utility model discloses a welding device. The welding device is used for welding a welding line on the inner side or the outer side of a position where a bottom cross beam of an under frame of a container and a bottom side beam of the under frame of the container. The welding device comprises a walking mechanism, a side-leaning rotary mechanism, a welding arm, a welding gun lifting mechanism, a welding gun clamp, a positioning mechanism and a welding gun, wherein the walking mechanism is installed on a walking beam and can walk along the walking beam, the side-leaning rotary mechanism is installed on the walking mechanism and is connected with the welding arm through a support, the positioning mechanism is installed on the welding arm, the welding gun clamp is installed on the positioning mechanism, the welding gun is installed on the welding gun clamp, the welding gun lifting mechanism is connected with the support and the welding arm so that gun rising and falling can be achieved, the side-leaning rotary mechanism drives the welding arm to rotate so that side leaning of the welding gun can be achieved, and the welding arm drives the positioning mechanism and the welding gun so that welding can be achieved. In addition, the utility model further discloses an automatic welding machine with the welding device.

Description

Welding device and automatic welding machine with the welding device

technical field

The utility model relates to a welding device used in the field of containers, in particular to a welding device for automatically welding the bottom beam and bottom side beam of a container underframe and an automatic welding machine with the welding device.

Background technique

The container chassis includes two bottom side beams and multiple bottom beams. Generally, the two ends of the bottom beams are fixed on the two bottom side beams by welding. , a large number of bottom beams, a large total span, small spacing between bottom beams, and uneven spacing distribution, etc., and because of the large tolerances of equipment tooling and products, and the narrow space, it is difficult for robots that follow the trajectory and teaching robots to be accurate and fast. It is necessary to find the weld seam for welding, and the one-time investment cost of equipment is large. Therefore, manual welding is currently used for welding. In order to realize the automatic welding of the bottom beam and the bottom side beam, it is necessary to find a solution with high efficiency and low investment.

Contents of the invention

In view of the above problems, the utility model proposes a welding device to solve the problem in the prior art that automatic equipment cannot be used for welding between the bottom beam and the bottom side beam of the container underframe.

In order to solve the above-mentioned technical problems, the utility model provides a welding device, which is used for welding the inner or outer weld seam of the lap joint between the bottom beam and the bottom side beam of the container underframe, including a traveling mechanism, a side leaning rotation mechanism, a Welding arm, a welding torch lifting mechanism, a welding torch clamp, a positioning mechanism and a welding torch, the walking mechanism is installed on a walking beam and can walk along the walking beam, the side leaning rotation mechanism is installed on the walking In terms of mechanism, the side leaning rotation mechanism is connected with the welding arm through a seat, the positioning mechanism is installed on the welding arm, the welding torch clamp is installed on the positioning mechanism, and the welding torch is installed on the The welding torch is clamped, the welding torch lifting mechanism connects the support and the welding arm to complete the action of lifting the torch and leaning down, and the side leaning rotation mechanism drives the welding arm to rotate to complete the welding torch side leaning Action, the welding arm drives the positioning mechanism and the welding torch to complete the welding action.

The welding device, wherein the positioning mechanism includes a cam cone mounting plate, at least one lateral cam cone for positioning the bottom beam of the container chassis, and at least one cam cone for positioning the container chassis The bottom side beam of the bottom beam is lowered against the formwork cone, and the formwork cone mounting plate has a first surface and a second surface, and a side wall and a bottom wall extend perpendicular to the first surface of the formwork cone mounting plate, The lateral cam cone is installed on the side wall, the downward cam cone is installed on the bottom wall, the lateral cam cone and the downward cam cone are perpendicular to each other, the A sleeve seat is installed on the second surface of the mounting plate of the mold cone, and the welding arm is connected to the sleeve seat.

The welding device, wherein the welding arm has a telescopic tube, the telescoping tube of the welding arm is installed on the casing base, and one end of a guide post is fixed on the outer periphery of the casing base, and The guide post is sleeved on the linear bearing of the welding arm.

The welding device, wherein the traveling mechanism includes a fixed plate, two guide brackets vertically extending from both sides of the fixed plate, a slider mounted on the fixed plate and one of the guide brackets A power mechanism, the slider and the two guide brackets are located on the same side of the fixed plate, a gear is installed on the power mechanism, a rack is provided on the walking beam, the gear and the tooth strips mesh.

The welding device, wherein, the side-by-side rotation mechanism includes a bottom plate, a driving mechanism installed on the bottom plate, and a bearing seat driven and rotated by the driving mechanism, and the bearing seat and the support connected and can drive the support to rotate.

The welding device, wherein, the welding arm includes a motor, a sleeve, a screw rod installed in the sleeve and driven by the motor to rotate, and a screw connected to the screw rod and capable of relative to the The telescopic tube is a telescopic tube that stretches the casing, the welding torch clamp is connected to the telescopic tube, the motor drives the screw to rotate, and the screw drives the telescopic tube to stretch back and forth to push the welding torch clamp to drive the The torch moves along the direction of the weld.

The welding device, wherein, the welding arm further includes a motor seat connecting the sleeve and the motor, a motor seat lug arranged on the motor seat, and a motor seat lug connected to the motor seat The connected fixed-side double lugs, a rotating shaft fixed on the fixed-side double lugs and a bearing matched with the rotating shaft, the support is installed on the fixed-side double lugs.

The welding device, wherein, the welding torch holder includes a torch holder and a gun cover, both the torch holder and the gun cover have a groove, the groove on the torch holder Cooperate with the groove on the cover of the pressure gun to clamp the welding gun.

The welding device, wherein the welding torch lifting mechanism includes a cylinder, a connecting frame connected to the support and a joint connected to the welding arm, and the cylinder drives the welding arm to lift upwards to lift the torch.

The utility model also provides an automatic welding machine, the automatic welding machine is a suspension type or a floor type, including:

At least one inner welding unit is used for welding the inner weld seam at the overlap of the bottom beam and the bottom side beam of the container chassis, and the inner welding unit includes at least one welding device as described above; and

At least one outer welding unit is used for welding the outer weld seam where the bottom beam of the container chassis overlaps with the bottom side beam, and the outer welding unit includes at least one welding device as described above; wherein, the inner welding unit and The outer welding units are combined with each other to weld the inner weld seam and the outer weld seam at the same time, at this time, the welding torch of the inner welding unit and the welding torch of the outer welding unit point towards each other at an included angle.

The automatic welding machine, wherein, the inner welding unit includes two welding devices with adjustable mutual spacing, and a bottom beam spacing adjustment mechanism is also provided between the two welding devices for adjusting the welding distance between the two welding devices. The distance between the devices, a wire feeding mechanism mounting seat for conveying solder is set between the two welding devices or on the bracket for installing the walking beam.

The automatic welding machine, wherein the outer welding unit includes two welding devices, and a bottom beam spacing adjustment mechanism is arranged between the two welding devices to adjust the distance between the two welding devices , A wire feeding mechanism mounting base for conveying solder is set between the two welding devices or on the bracket for installing the walking beam.

The automatic welding machine, wherein the bottom beam spacing adjustment mechanism includes a spacing adjustment power mechanism installed on the walking mechanism, a spacing adjustment gear connected to the spacing adjustment power mechanism, and a spacing adjustment gear connected to the spacing adjustment mechanism. The spacing adjustment rack meshed with the adjustment gear, the spacing adjustment power mechanism drives the rotation of the spacing adjustment gear, the spacing adjustment gear drives the spacing adjustment rack to move, and the spacing adjustment rack drives one of the welding devices to move To adjust the distance between the two welding devices.

The automatic welding machine, wherein, the positioning mechanism of the outer welding unit is provided with two lateral cam cones and two downward cam cones, and the positioning mechanism of the inner welding unit is provided with a lateral cam cone and a down-mold cone.

The automatic welding machine, wherein, the lateral camming cone and the downward camming cone have a cone structure or a wheel structure.

The utility model further provides an automatic welding machine. The automatic welding machine includes: at least one inner welding unit, which is used for welding the inner weld seam at the lap joint of the bottom beam and the bottom side beam of the container chassis, and the inner weld The unit includes at least one welding device as described above, and the positioning mechanism of the welding device includes at least one lateral cam cone for positioning on the inner side of the bottom beam and at least one downward cam for positioning on the bottom side beam cone, and the lateral cam cone and the downward cam cone are perpendicular to each other.

The utility model further provides an automatic welding machine. The automatic welding machine includes: at least one outer welding unit, which is used for welding the outer weld seam at the overlapping joint of the bottom beam and the bottom side beam of the container chassis. The outer weld The unit includes at least one welding device as described above, and the positioning mechanism of the welding device includes at least one lateral cam cone for positioning on the outside of the bottom beam and at least one downward cam for positioning on the bottom side beam cone, and the lateral cam cone and the downward cam cone are perpendicular to each other.

The welding device of the utility model can quickly find the welding seam by setting a walking mechanism, a side leaning rotation mechanism, a welding arm, a positioning mechanism and other structures, thereby realizing automatic welding and improving welding efficiency.

In addition, the automatic welding machine of the utility model is suitable for welding between the bottom beam and the bottom side beam of the container by setting the above welding device and reasonably combining the above welding device, which overcomes the problems caused by the bottom beam and the bottom side beam in the prior art. Short internal and external welds between the bottom and side beams, a large number of bottom beams, a large total span, small spacing between bottom beams, and uneven spacing distribution lead to defects that cannot be welded with equipment and have to be welded manually. The automatic welding with the bottom side beam improves the welding efficiency. the

Description of drawings

Fig. 1a is a structural schematic diagram of a container underframe.

Fig. 1b is a schematic cross-sectional view along section line A-A in Fig. 1a.

Fig. 1c is a partially enlarged view of area B in Fig. 1b.

Fig. 2 is a structural schematic diagram of the automatic welding machine of the present invention suspended on a support.

Fig. 3 is a structural schematic diagram of the automatic welding machine of the present invention.

Fig. 4 is a structural schematic diagram of the inner welding unit of the present invention.

Fig. 5 is a schematic structural view of the outer welding unit of the present invention.

Fig. 6a is a structural schematic diagram of the traveling mechanism of the inner welding unit of the present invention.

Fig. 6b is a schematic diagram of the reverse structure of the traveling mechanism of the inner welding unit of the present invention.

Fig. 6c is a schematic side view of the traveling mechanism of the inner welding unit of the present invention.

Fig. 7 is a structural schematic diagram of the side-to-side rotation mechanism of the inner welding unit of the present invention.

Fig. 8a is a structural schematic diagram of the welding arm of the inner welding unit of the present invention.

Fig. 8b is a schematic cross-sectional view of the welding arm of the inner welding unit of the present invention.

Fig. 9a is a structural schematic diagram of the positioning mechanism and welding torch clamp of the inner welding unit of the present invention.

Fig. 9b is a schematic side view of Fig. 9a.

Fig. 10 is a structural schematic diagram of the positioning mechanism and the welding torch clamp of the outer welding unit of the present invention.

Fig. 11a is a schematic structural diagram of a floor-standing automatic welding machine.

Fig. 11b is a partial enlarged view of area D in Fig. 11a.

Detailed ways

In order to further illustrate the principle and structure of the utility model, the preferred embodiments of the utility model will be described in detail in conjunction with the accompanying drawings.

Please refer to Fig. 1a, which is a schematic structural view of the container underframe. The container underframe 1 includes two bottom side beams 11 and a plurality of bottom beams 12 between the two bottom side beams 11. The bottom beams 12 and the bottom side beams 11 are welded. The method is fixedly connected, wherein, the bottom cross beam 12 includes a long bottom cross beam 121 and a short bottom cross beam 122 . As shown in Figure 1b and Figure 1c, Figure 1b is a schematic cross-sectional view along the section line A-A in Figure 1a, and Figure 1c is a partial enlarged view of area B in Figure 1b, where the bottom beam 12 and the bottom side beam 11 overlap to form an inner weld Seam 14 and outer weld seam 15, for the welding of the inner weld seam 14 and the outer weld seam 15, the automatic welding machine of the present utility model is specially provided with an inner welding unit and an outer welding unit.

The automatic welding machine of the present utility model is described in detail below.

Please refer to Fig. 2 to Fig. 3, it is the structural representation that the automatic welding machine of the present utility model is suspended on the support, and multiple groups of automatic welding machines 10 are suspended below the walking beam 101 of support 100, each automatic welding machine 10 mutually interval. Each automatic welding machine 10 can walk along the walking beam 101 under the drive of the power mechanism to weld the bottom beam 12 one by one. Both the inner welding unit 20 and the outer welding unit 30 are provided with cable drag chains 102 .

Please refer to Fig. 3 to Fig. 5, Fig. 3 is the structural diagram of the automatic welding machine of the present invention, Fig. 4 is the structural diagram of the inner welding unit of the present invention, Fig. 5 is the structural diagram of the outer welding unit of the present invention. The automatic welding machine 10 includes an inner side welding unit 20 and an outer side welding unit 30, the inner side welding unit 20 is used for welding the inner side weld 14 at the overlap of the bottom beam 12 and the bottom side beam 11, and the outer side welding unit 30 is used for welding the bottom side beam 12 and the outer side weld 15 where the bottom side beam 11 overlaps. The inner welding unit 20 and the outer welding unit 30 prevent mutual collision during walking through a sensor device 1002 fixed on a mounting plate 1001 between them. The inner welding unit 20 includes two welding devices 200 , the two welding devices 200 are spaced apart and the distance between them can be adjusted according to the distance between the bottom beams 12 . It should be noted that the inner welding unit 20 can combine the two welding devices 200 in a variety of ways, for example, the two welding devices 200 are connected to each other to form a rigid body, or the two welding devices 200 share one traveling mechanism. That is to say, one of the welding devices 200 is fixed on the traveling mechanism 21 , and the other welding device 200 is combined on the traveling mechanism 21 through the bottom beam spacing adjustment mechanism. In addition, a wire feeding mechanism mounting base 201 is installed between the two welding devices 200 to provide solder for the welding devices 200 during welding. In addition, the wire feeding mechanism installation seat 201 can also be installed on the bracket 100 by other methods such as hanging rails.

Welding device 200 comprises a traveling mechanism 21, one side leans on rotating mechanism 22, a welding arm 23, a positioning mechanism 24, a welding torch clamp 25, a welding torch 26 and a welding torch lifting mechanism 27, and traveling mechanism 21 is installed on walking beam 101 and can walk along the walking beam 101 (as shown in Figure 2), the side leaning on the rotating mechanism 22 is installed on the traveling mechanism 21, the side leaning on the rotating mechanism 22 is connected with the welding arm 23 through a seat 220, and the positioning mechanism 24 is installed on the welding arm 23. On the arm 23 , the welding torch clamp 25 is installed on the positioning mechanism 24 , the welding torch 26 is installed on the welding torch clamp 25 , and the welding torch lifting mechanism 27 is connected to the support 220 and the welding arm 23 . When the rotation mechanism 22 is rotated sideways, the welding arm 23 and the parts connected to the welding arm 23 (such as the positioning mechanism 24 , the welding torch clip 25 , the welding torch 26 and the welding torch lifting mechanism 27 ) are driven to rotate together with the welding arm 23 .

Preferably, in order to prevent dust from affecting the functions of the components of the welding device 200 , a dustproof cover 202 is placed outside the welding arm 23 .

The outer welding unit 30 includes two welding devices 300, and its structural features are similar to the inner welding unit 20, the difference lies in the orientation of the positioning mechanism and the welding torch, the differences will be described in detail below, and the similarities will not be repeated here. A repeat.

Take the welding device of the inner welding unit as an example to describe in detail the structural features and working principles of the components of the welding device of the present invention:

As shown in Figures 6a to 6c, Figure 6a is a schematic diagram of the front structure of the walking mechanism of the inner welding unit of the present invention, Figure 6b is a schematic diagram of the reverse structure of the walking mechanism of the inner welding unit of the present invention, and Figure 6c is a schematic diagram of the inner side of the utility model Schematic side view of the traveling mechanism of the welding unit. And please refer to Fig. 4 at the same time, walking mechanism 21 comprises a fixed plate 211, two guide brackets 212 extending vertically from the fixed plate 211 both sides, the slide block 213 that is installed on the fixed plate 211 and is installed on one of them on the guide bracket 212 A power mechanism 214 of. The slide block 213 is arranged along the length direction of the fixed plate 211 and cooperates with the slide rail (not shown) on the walking beam 101, the power mechanism 214 is connected with a gear 215, and the gear 215 is connected with the rack on the walking beam 101 (not shown). (shown), the power mechanism 214 drives the gear 215 to rotate and walk along the rack (not shown) on the traveling beam 101 , and then drives the traveling mechanism 21 to walk along the traveling beam 101 . In addition, the walking mechanism 21 also includes a bottom beam spacing adjustment mechanism 210 installed on the guide bracket 212 for adjusting the spacing between two welding devices 200 connected side by side. The bottom beam spacing adjustment mechanism 210 includes a spacing adjustment power mechanism 216, and a spacing Adjust the distance adjustment gear 217 connected to the power mechanism 216 and the distance adjustment rack 218 meshed with the distance adjustment gear 217 . The spacing adjustment power mechanism 216 drives the spacing adjustment gear 217 to rotate, the spacing adjustment rack 218 forms a rigid assembly with the other two sliders 213 through a mounting plate, and can move along the slide rail on the walking beam 101, and the spacing adjustment rack 218 drives the walking One of the side-by-rotation mechanisms 22 (as shown in FIG. 4 ) on the mechanism 21 moves along the length direction of the walking beam 101 to adjust the distance between the two side-by-rotation mechanisms 22 on the same travel mechanism 21 , and then adjust the two welding The distance between the devices 200 makes the distance between the two welding devices 200 decrease or increase, so that it can be applied to the situation where the distance between the bottom beams 12 of the same bottom frame 1 is not uniform. When adjusting, one side of the same walking mechanism 21 is fixed by the rotating mechanism 22, and the other side is movable by the rotating mechanism 22, so as to adjust and adapt to different bottom beams 12 spacings.

As shown in FIG. 7 , it is a schematic structural view of the side-by-side rotation mechanism of the inner welding unit of the present invention. Please refer to FIG. 4 at the same time, the side leaning rotation mechanism 22 includes a bottom plate 221 installed below the running mechanism 21 , a driving mechanism 222 installed on the bottom plate 221 and a bearing seat 223 driven by the driving mechanism 222 to rotate. The bearing seat 223 is connected with the support 220 , the driving mechanism 222 drives the bearing seat 223 to rotate, the bearing seat 223 drives the support 220 to rotate, and then drives the welding arm 23 to rotate to complete the side leaning action of the welding torch 26 .

As shown in Figure 8a and Figure 8b, Figure 8a is a schematic structural view of the welding arm of the inner welding unit of the present invention, and Figure 8b is a schematic cross-sectional view of the welding arm of the inner welding unit of the present invention, and please refer to Figure 4 at the same time, the welding arm 23 includes a motor 231, sleeve pipe 232, a screw mandrel 233 installed in the sleeve sleeve 232, a telescopic tube 234 connected to the screw mandrel 233, and a guide post 247 installed above the sleeve sleeve 232 by a hex bolt 2311 (As shown in FIG. 9 a ) the matching linear bearing 2310 , one end of the telescopic tube 234 protruding from the sleeve 232 is connected with the positioning mechanism 24 , and then indirectly connected with the welding torch holder 25 . When the motor 231 drives the screw mandrel 233 to rotate, the screw mandrel 233 drives the telescopic tube 234 to expand and contract forward or backward to push the welding torch clamp 25 to drive the welding torch 26 to move along the direction of the welding seam, so that the welding torch 26 can be fast forwarded and worked along the weld seam And rewind and other operations.

In addition, the casing 232 and the motor 231 are connected through a motor base 235, a motor base lug 236 is arranged on the motor base 235, a fixed side double lug 237 is connected with the motor base 235, and is installed in the middle of the fixed side double lug 237. A rotating shaft 238, a pair of bearings 239 matched with the rotating shaft 238 are arranged on the outer peripheral surface of the rotating shaft 238, the outer surface of the fixed side double lugs 237 is connected with the support 220, and the support 220 passes through the fixed side double lugs 237 Drive the welding arm 23 to rotate.

In addition, it should be noted that the traveling mechanism, side leaning rotation mechanism, and welding arm of the outer welding unit have the same structure as the inner welding unit’s walking mechanism, side leaning rotating mechanism, and welding arm. The swivel mechanism and welding arm are suitable for the outer welding unit.

As shown in Fig. 9a and Fig. 9b, Fig. 9a is a structural schematic diagram of the positioning mechanism and welding torch holder of the inner welding unit of the present invention, and Fig. 9b is a side schematic diagram of Fig. 9a. Please also refer to FIG. 4 , the positioning mechanism 24 includes a cam cone mounting plate 241 , a lateral cam cone 242 and a downward cam cone 243 . The former cone mounting plate 241 has a first surface 2411 and a second surface 2412, a side wall 244 and a bottom wall 245 extending perpendicular to the first surface 2411 of the former cone mounting plate 241, wherein the side wall 244 is located at the second On the upper right side of the first surface 2411 , the bottom wall 245 is located on the lower left side of the first surface 2411 . The lateral cam cone 242 is installed on the side wall 244, and the downward cam cone 243 is installed on the bottom wall 245. The axes of the lateral cam cone 242 and the downward cam cone 243 are perpendicular to each other (as shown in Figure 9b ). When the lateral cam cone 242 and the downward cam cone 243 work, the lateral cam cone 242 abuts against the inner side of the bottom beam 12, and the downward cam cone 243 abuts against the bottom side beam 11, so that the welding torch 26 is positioned on the container On the bottom frame 1, it plays a guiding role when welding torch 26 walks. After the lateral camber 242 and the downward camber 243 complete the side leaning and lowering actions, a welding point C is formed where the vertical line of the lateral camber 242 and the downward camber 243 intersect, and the welding torch 26 It can be aligned with the welding spot C for welding, so as to realize the guiding function of the welding torch 26 during welding. Wherein, the lateral cam cone 242 and the downward cam cone 243 are both made of wear-resistant materials, so as to prevent them from being corroded or damaged by wear and high-temperature solder during welding. The front ends of the above-mentioned lateral cam cone 242 and downward cam cone 243 may be a cone structure made of steel, or a wheel structure or a similar combination structure.

The welding torch clamp 25 is installed on the first surface 2411 of the cam cone mounting plate 241 , and includes a torch clamp seat 251 , a pressure gun cover 252 and an insulating sleeve 253 . Both the gun cover 252 and the gun holder 251 have a groove, and the two grooves match to form a through hole for installing the welding gun 26 . During installation, first the welding torch 26 is positioned in the groove of the torch holder 251, and then the pressure torch cover 252 is pressed on the torch holder 251 by bolts so that the welding torch 26 is clamped in the welding torch holder 25. The insulating sleeve 253 arranged between the groove surface and the outer circular surface of the clamping section of the welding torch 26 insulates the outer circular surface of the clamping section of the welding torch 26 from the positioning mechanism 24 .

A sleeve socket 246 for installing the welding arm 23 telescoping tube 234 is also installed on the second surface 2412 of the former cone mounting plate 241, and an end of a guide post 247 is fixed on the outer periphery of the sleeve socket 246, and it is socketed On the linear bearing 2310 of the welding arm 237. The role of the guide post 247 can prevent the torch clamp 25 from rotating under the rotation of the welding arm 23 screw 233 on the one hand, that is, it can only move axially under the rotation of the screw 233, and can be used to strengthen the welding arm on the other hand. 23 promotes the guiding effect of welding torch clamp 25 to move in the axial direction.

As shown in FIG. 4 , the welding torch lifting mechanism 27 is used to complete the action of lifting the torch and leaning down, which includes a cylinder 271 , a connecting frame 273 and a joint 272 . The two ends of the cylinder 271 are respectively connected with the connecting frame 273 and the joint 272 , the other end of the connecting frame 273 is connected with the support 220 , and the other end of the joint 272 is connected with the welding arm 23 . Driven by the cylinder 271, the joint 272 is lifted upwards, which drives the welding arm 23 to lift upwards, and then drives the welding torch 26 installed at one end of the welding arm 23 to lift upwards. Driven by no external force, the torch lifting mechanism 27 relies on gravity to complete the lowering action.

The working principle of the inner welding unit 20 will be described below in conjunction with FIG. 2, FIG. 4 and FIG. 6a to FIG. 9b:

The power mechanism 214 starts, and the traveling mechanism 21 walks along the walking beam 101. When the traveling mechanism 21 walks a certain distance, the welding torch 26 reaches the working waiting point, the power mechanism 214 stops, the cylinder 271 piston rod of the welding torch lifting mechanism 27 is retracted, and the cylinder 271 drives the welding Arm 23 lifts upwards to complete the action of lifting the gun, start the motor 231 on the welding arm 23, under the drive of motor 231, the telescopic tube 234 that is connected with the welding torch clamp 25 drives the welding torch 26 to stretch out quickly forward, and completes the fast forward action. Start by the driving mechanism 222 on the rotating mechanism 22, drive the bearing seat 223 to rotate, the welding arm 23 connected to the bearing seat 223 rotates, drive the positioning mechanism 24 to rotate, and make the lateral cam cone 242 contact the bottom beam 12 to complete the side leaning action , the cylinder piston rod of the hoisting mechanism 27 stretches out under the gravity, and the downward leaning cone 243 contacts the bottom side beam 11 to complete the lowering action, and the combination of the side leaning and the lower leaning action completes the action of geometric profiling to find the weld seam, and starts The motor 231 on the welding arm 23 starts the welding machine, and the welding torch 26 walks and welds along the welder under the guidance of the lateral cam cone 242 and the downward cam cone 243, so as to complete the welding of the inner seam. When two welding devices 200 are equipped on the same walking mechanism 21, the welding torch 26 of the fixed side leaning against the rotating mechanism 22 reaches the working waiting point, and the distance adjusting mechanism 210 on the movable side leaning against the rotating mechanism 22 is at the distance adjustment power mechanism 216. Carry out the spacing adjustment of two welding torches 26 according to the required bottom crossbeam spacing under the drive of driving, make two welding torches 26 enter respectively the working waiting point of the bottom crossbeam that needs to be welded separately, carry out follow-up work again. When multiple welding devices 200 are equipped on the same traveling mechanism 21, the same principle applies.

The structure and connection relationship of the outer welding unit 30 are roughly the same as those of the above-mentioned inner welding unit 20, the difference lies in the number and installation positions of the lateral cam cones and the downward cam cones of the welding torch pointing and positioning mechanism, as shown in the following figure 3. Figures 5 and 10 illustrate the differences between the outer welding unit 30 and the above-mentioned inner welding unit 20 in detail:

Before describing the difference in detail, the position of the inside welding unit 20 in FIG. 3 is defined as the left side, and the position of the outside welding unit 30 is defined as the right side. As shown in FIG. Pointing to the right from the left, and the welding torch 36 of the outer welding unit 30 is then from the right to the left, the welding torch 26 of the inner welding unit 20 and the welding torch 36 of the outer welding unit 30 point to each other at an angle. The direction of the welding torch is arranged in this way so that the inner and outer welds of the container bottom frame can be welded at the same time. Referring to Fig. 10 and Fig. 3, the side wall 344 of the positioning mechanism of the outer welding unit 30 is positioned at the left upper side of the cam cone mounting plate 341, and the bottom wall 345 is positioned at the right lower side of the cam cone mounting plate 341, and the lateral cam Both the cone 342 and the downward cam cone 343 are two. The front ends of the above-mentioned lateral cam cone 342 and downward cam cone 343 may be a cone structure made of steel, or a wheel structure or a similar combination structure. The effect of setting up two profiling cones is: when welding the arc section of the first and last ends of the outer weld seam of the bottom beam, the welding torch will not slip out of the workpiece one by one, so as to complete the welding of the entire outer weld seam at one time. In addition, when the outer welding unit 30 and the inner welding unit 20 are in use, the lateral cam cone 342 of the outer welding unit 30 abuts against the outer side of the bottom beam 12 , and the lateral cam cone 242 of the inner welding unit 20 abuts the bottom beam 12 The inner side of both, and the downward cam cones 343 , 243 of both are abutted on the bottom side beam 11 . The description of the same parts of the outer welding unit 30 and the inner welding unit 20 is omitted here, and the structure and principle of the same parts can refer to the description of the related parts of the inner welding unit 20 , which will not be repeated here.

In addition, the working principle of the outer welding unit 30 is the same as that of the inner welding unit 20 , which will not be repeated here. the

In the above-mentioned embodiments, the automatic welding machine is suspended under the walking beam, but it is not limited thereto. In another embodiment, the automatic welding machine can be floor-standing, as shown in Figure 11a and Figure 11b, and Figure 11a is a floor-standing The structural schematic diagram of the type automatic welding machine, and Fig. 11b is a partial enlarged view in area D in Fig. 11a. The traveling mechanism 611 of the automatic welding machine 60 is installed on the top of the traveling beam 41 and can walk along the traveling beam 41 . The welding device 61 of the automatic welding machine 60 can travel between the bottom beams 51 to weld different bottom beams 51 on the bottom side beams 52 .

The automatic welding machine of the utility model has a compact structure and is light and handy, and can be applied to short inner and outer weld seams at the overlap of the bottom beam and the bottom side beam of the container, a large number of bottom beams, a large total span, small spacing between the bottom beams and uneven spacing distribution. The welding under uniform conditions realizes the automatic welding of the bottom beam and the bottom side beam, and improves the welding efficiency.

The positioning mechanism of the utility model utilizes the principle of geometric profiling, adopts the lateral cam cone and the downward cam cone to find the weld seam quickly and accurately, and ensures the welding quality and welding accuracy.

In this embodiment, the inner welding unit includes two welding devices connected side by side, but it is not limited thereto. The inner welding unit may also include only one welding device. Similarly, the outer welding unit may also include only one welding device. In this case, the automatic welding machine can only complete the welding of one bottom beam at a time. Of course, the inner welding unit can also include more than two welding devices connected side by side, and the outer welding unit can also include more than two welding devices connected side by side. In this case, the automatic welding machine can complete the inner welding of multiple bottom beams each time. Seam or outside seam welding.

In addition, it should be noted that the above-mentioned inner welding unit and outer welding unit can be used separately or in combination. When used alone, only the inner weld or only the outer weld can be welded. When used in combination, the inner weld can be welded at the same time. seam and outer weld, wherein the combined use is not limited to the combination of inner welding unit with a single welding device and outer welding unit with a single welding device, but also includes inner welding with 2 or more welding devices Combination of units with outer welding units with 2 or more welding devices.

In addition, the power mechanism or driving mechanism in the above embodiments can be an electric motor, a motor or a reducer.

The above descriptions are only preferred feasible embodiments of the present utility model, and do not limit the protection scope of the present utility model. Any equivalent structure or equivalent process conversion made by using the description and drawings of the utility model, or directly or indirectly used in other related technical fields, are all included in the patent protection scope of the utility model.

Claims (17)

1. A welding device, used for welding the inner or outer welds of the bottom beam of the container underframe and the lap of the bottom side beam, is characterized in that it includes a traveling mechanism, a side leaning on a rotating mechanism, a welding arm, a Welding torch lifting mechanism, a welding torch clamp, a positioning mechanism and a welding torch, the walking mechanism is installed on a walking beam and can walk along the walking beam, the side leaning rotation mechanism is installed on the walking mechanism, the The side leaning rotation mechanism is connected with the welding arm through a seat, the positioning mechanism is installed on the welding arm, the welding torch clamp is installed on the positioning mechanism, and the welding torch is installed on the welding torch clamp, the welding torch lifting mechanism connects the support and the welding arm to complete the action of lifting the gun and leaning down, and the side leaning rotation mechanism drives the welding arm to rotate to complete the side leaning action of the welding gun. The welding arm drives the positioning mechanism and the welding torch to complete the welding movement. 2. The welding device according to claim 1, wherein the positioning mechanism comprises a cam cone mounting plate, at least one lateral cam cone for positioning the bottom beam of the container chassis and at least one a bottom side beam for positioning the container chassis downward against a cam, the cam mounting plate having a first surface and a second surface extending perpendicular to the first surface of the cam mounting plate One side wall and a bottom wall, the lateral cam cone is installed on the side wall, the downward cam cone is installed on the bottom wall, the lateral cam cone and the downward cam The cam cones are perpendicular to each other, and the second surface of the mounting plate of the cam cones is provided with a sleeve base, and the welding arm is connected to the sleeve base. 3. The welding device according to claim 2, wherein the welding arm has a telescopic tube, the telescoping tube of the welding arm is installed on the sleeve seat, and one end of a guide post is fixed on the The outer circumference of the casing seat, and the guide post is sleeved on the linear bearing of the welding arm. 4. welding device as claimed in claim 1, is characterized in that, described walking mechanism comprises a fixed plate, two guide brackets extending perpendicularly from described fixed plate both sides, the slide block that is installed on described fixed plate and A power mechanism installed on one of the guide brackets, the slider and the two guide brackets are located on the same side of the fixed plate, a gear is installed on the power mechanism, and a rack is provided on the walking beam , the gear meshes with the rack. 5. The welding device according to claim 1, wherein the side-by-rotation mechanism comprises a base plate, a drive mechanism mounted on the base plate, and a bearing seat driven and rotated by the drive mechanism, so that The bearing seat is connected with the support and can drive the support to rotate. 6. The welding device according to claim 1, wherein the welding arm comprises a motor, a sleeve, a screw rod installed in the sleeve and driven to rotate by the motor, and a The telescopic tube is connected to the screw rod and can be stretched relative to the casing, the welding torch clamp is connected to the telescopic tube, the motor drives the screw rod to rotate, and the screw rod drives the telescopic tube to stretch back and forth to Pushing the clamp of the welding torch drives the welding torch to move along the direction of the welding seam. 7. The welding device according to claim 6, wherein the welding arm further comprises a motor seat connecting the sleeve and the motor, a motor seat lug arranged on the motor seat, A fixed side double lug connected to the motor seat lug, a rotating shaft fixed on the fixed side double lug and a bearing matched with the rotating shaft, the support is installed on the fixed side On both ears. 8. welding device as claimed in claim 1, is characterized in that, described welding gun clamp comprises a gun holder and a pressure gun cover, and described gun holder and described pressure gun cover all have a groove, so The grooves on the torch clamp seat cooperate with the grooves on the gun cover to clamp the welding torch. 9. The welding device according to claim 1, wherein the welding torch lifting mechanism comprises a cylinder, a connecting bracket connected to the support and a joint connected to the welding arm, the cylinder drives the The welding arm lifts up to lift the gun. 10. An automatic welding machine, characterized in that, the automatic welding machine is suspended or floor-standing, and the automatic welding machine comprises: At least one inner side welding unit is used for welding the inner side weld seam at the overlap of the bottom beam and the bottom side beam of the container chassis, and the inner side welding unit includes at least one welding device according to any one of claims 1 to 9 ;as well as At least one outer welding unit is used for welding the outer weld seam at the overlap between the bottom beam and the bottom side beam of the container chassis, and the outer welding unit includes at least one welding device according to any one of claims 1 to 9 wherein, the inner welding unit and the outer welding unit are combined to weld the inner weld and the outer weld at the same time, at this time, the welding torch of the inner welding unit and the welding torch of the outer welding unit point to each other at an included angle . 11. The automatic welding machine according to claim 10, characterized in that, the inner side welding unit comprises two welding devices with adjustable mutual spacing, and a bottom beam spacing adjustment mechanism is also arranged between the two welding devices , used to adjust the distance between the two welding devices, a wire feeding mechanism mounting seat for conveying solder is set between the two welding devices or on the bracket on which the walking beam is installed. 12. The automatic welding machine according to claim 10, wherein the outer welding unit comprises two welding devices, and a bottom beam spacing adjustment mechanism is also provided between the two welding devices for adjusting the distance between the two welding devices. The distance between the two welding devices, a wire feeding mechanism mounting seat for conveying solder is set between the two welding devices or on the bracket on which the walking beam is installed. 13. The automatic welding machine according to claim 11 or 12, characterized in that, the bottom beam spacing adjustment mechanism includes a spacing adjustment power mechanism installed on the walking mechanism, and a spacing adjustment power mechanism connected to the distance adjustment power mechanism. The distance adjustment gear and a distance adjustment rack meshed with the distance adjustment gear, the distance adjustment power mechanism drives the distance adjustment gear to rotate, the distance adjustment gear drives the distance adjustment rack to move, the The spacing adjustment rack drives one of the welding devices to move to adjust the distance between the two welding devices. 14. The automatic welding machine according to claim 10, characterized in that, the positioning mechanism of the outer welding unit is provided with two side-by-die cones and two downward-by-mold cones, and the positioning of the inner welding unit The mechanism is provided with a lateral cam cone and a downward cam cone. 15. The automatic welding machine according to claim 14, characterized in that, the lateral cam cone and the downward cam cone are cone-shaped or wheel-shaped. 16. An automatic welding machine, characterized in that, the automatic welding machine comprises: at least one inner welding unit, used for welding the inner weld seam at the overlap of the bottom beam and the bottom side beam of the container underframe, the inner weld The unit includes at least one welding device according to claim 1, the positioning mechanism of the welding device includes at least one lateral cam for positioning on the inside of the bottom beam and at least one lateral cam for positioning on the bottom side beam. The lower cam cone, and the lateral cam cone and the downward cam cone are perpendicular to each other. 17. An automatic welding machine, characterized in that the automatic welding machine comprises: at least one outer welding unit, which is used to weld the outer weld seam at the overlap of the bottom beam and the bottom side beam of the container underframe, and the outer weld The unit includes at least one welding device according to claim 1, the positioning mechanism of the welding device includes at least one lateral cam for positioning on the outside of the bottom beam and at least one lateral cam for positioning on the bottom side beam. The lower cam cone, and the lateral cam cone and the downward cam cone are perpendicular to each other.

Images