阅读说明：本技术 焊接装置 (Welding device ) 是由 金士君 朱春华 何新龙 唐忠敏 于 2020-06-02 设计创作，主要内容包括：本发明公开了一种焊接装置。焊接装置用于焊接集装箱的顶板和楣板之间的焊缝,焊接装置包括横梁、至少两个压脚组件、焊接机器人；横梁沿集装箱的宽度方向延伸,横梁沿集装箱的高度方向可移动；至少两个压脚组件沿横梁的延伸方向间隔设置,以分别在焊缝处的不同位置将顶板压紧至楣板,压脚组件包括压脚弹簧和压脚,压脚弹簧的一端连接横梁,压脚弹簧的另一端连接压脚,压脚弹簧用于向压脚施加作用力,以压紧顶板；焊接机器人自动焊接焊缝。由此,至少两个压脚压紧顶板的至少两个位置,可以减少顶板的拱起,进而保证焊接质量。(The invention discloses a welding device. The welding device is used for welding a welding seam between a top plate and a lintel plate of the container and comprises a cross beam, at least two presser foot assemblies and a welding robot; the beam extends along the width direction of the container, and the beam can move along the height direction of the container; the pressing foot components comprise pressing foot springs and pressing feet, one ends of the pressing foot springs are connected with the cross beam, the other ends of the pressing foot springs are connected with the pressing feet, and the pressing foot springs are used for applying acting force to the pressing feet to press the top plate; the welding robot automatically welds the weld. Therefore, at least two positions of the top plate are pressed by at least two pressure feet, the arching of the top plate can be reduced, and the welding quality is further ensured.)

1. A welding device for welding a weld between a roof and an lintel plate of a container, comprising:

a cross beam extending in a width direction of a container, the cross beam being movable in a height direction of the container;

the pressure foot assembly comprises a pressure foot spring and a pressure foot, one end of the pressure foot spring is connected with the cross beam, the other end of the pressure foot spring is connected with the pressure foot, and the pressure foot spring is used for applying acting force to the pressure foot to press the top plate; and

a welding robot that automatically welds the weld.

2. The welding apparatus of claim 1 wherein said pressure foot assembly further comprises a housing connected to said cross member, said pressure foot spring being disposed within said housing.

3. The welding device of claim 1, further comprising:

the container comprises a cross beam, at least two balance racks, a plurality of positioning pins and a plurality of positioning pins, wherein the balance racks are fixedly arranged and extend along the height direction of the container;

the synchronizing shaft is connected with the cross beam and can be arranged in a rotatable mode;

and the balance gears are in one-to-one correspondence with the balance racks, the balance gears are fixedly connected to the synchronizing shaft, and the balance gears are meshed with the balance racks corresponding to the balance gears.

4. The welding device of claim 1, further comprising a hold down spring that applies a force to the beam that biases the beam upward when the beam moves downward to compress the hold down spring.

5. The welding device of claim 1, further comprising a beam guide fixedly disposed, a portion of the beam being located within the beam guide, the beam guide extending in an up-and-down direction to guide the up-and-down movement of the beam.

6. The welding device of claim 1, further comprising:

the cross beam and the presser foot assembly are arranged on the frame, and the frame is movably arranged along the length direction of the container.

7. The welding apparatus of claim 6, further comprising girders extending along a length of the container, the frame being disposed on the girders, the girders guiding movement of the frame.

8. The welding apparatus of claim 7 further comprising a guide wheel rotatably disposed on the frame, the guide wheel coupled to the longerons for rolling on the longerons.

9. The welding apparatus of claim 7 further comprising a locking device connecting the frame and the longerons, the locking device for locking the frame to the longerons.

10. The welding device of claim 1, further comprising a beam cylinder, a cylinder shaft of the beam cylinder being connected to the beam to drive the beam up and down.

Technical Field

The invention relates to the field of container processing, in particular to welding equipment.

Background

Existing welding equipment for welding a weld between a roof and header of a container includes a pressure foot. The presser foot compresses the top plate to the lintel plate. The weld between the top plate and the header plate is then welded by a welding apparatus. Because the presser foot is an integral presser plate. The whole laminating roof of clamp plate to compress tightly the roof to the lintel board. Thus, there may be an unfit position between the top plate and the header plate, where the welding quality of the welding equipment is poor.

To this end, the present invention provides a welding device to at least partially solve the problems of the prior art.

Disclosure of Invention

In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The invention provides a welding device, which is used for welding a welding seam between a top plate and an architrave of a container, and is characterized by comprising the following components: the beam extends along the width direction of the container, and can move along the height direction of the container; the pressing foot assembly comprises a pressing foot spring and a pressing foot, one end of the pressing foot spring is connected with the cross beam, the other end of the pressing foot spring is connected with the pressing foot, and the pressing foot spring is used for applying acting force to the pressing foot to press the top plate; and a welding robot that automatically welds the weld.

According to the welding equipment, the cross beam moves downwards, so that when the presser feet of the presser foot assemblies press the top plate, each presser foot assembly presses one position of the top plate, the welding assembly presses at least two positions of the top plate through at least two presser feet to enable the top plate and the header plate to be tightly attached, then the welding robot automatically searches for a welding seam track and automatically welds, and therefore the at least two presser feet press at least two positions of the top plate, arching of the top plate can be reduced, and welding quality is guaranteed.

Optionally, the presser foot assembly further comprises a housing connected to the cross member, the presser foot spring being disposed within the housing.

Optionally, the welding device further comprises: the container comprises at least two balance racks, wherein the balance racks are fixedly arranged and extend along the height direction of the container, one balance rack is positioned at one end of a cross beam, and the other balance rack is positioned at the other end of the cross beam; the synchronous shaft is connected with the cross beam and can be arranged in a rotatable manner; and the balance gears are in one-to-one correspondence with the balance racks, the balance gears are fixedly connected to the synchronizing shaft, and the balance gears are meshed with the balance racks corresponding to the balance gears.

Optionally, the welding device further comprises a limit spring, the limit spring applying a force to the beam to bias it upwardly when the beam moves downwardly to compress the limit spring.

Optionally, the welding device further comprises a cross beam guide rail, the cross beam guide rail is fixedly arranged, a part of the cross beam is located in the cross beam guide rail, and the cross beam guide rail extends in the up-and-down direction to guide the up-and-down movement of the cross beam.

Optionally, the welding device further comprises: the frame, the cross beam and the presser foot assembly are arranged on the frame, and the frame is movably arranged along the length direction of the container.

Optionally, the welding device further comprises a girder, the girder extends along the length direction of the container, the frame is disposed on the girder, and the girder guides movement of the frame.

Optionally, the welding device further comprises a guide wheel rotatably disposed on the frame, the guide wheel being connected to the girder to roll on the girder.

Optionally, the welding device further comprises a locking device, the locking device connects the frame and the girder, and the locking device is used for locking the frame on the girder.

Optionally, the welding device further comprises a beam cylinder, and a cylinder shaft of the beam cylinder is connected with the beam to drive the beam to move up and down.

Drawings

The following drawings of the invention are included to provide a further understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In the drawings:

FIG. 1 is a front view of a welding apparatus according to one embodiment of the present invention;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a rear side view of FIG. 1;

FIG. 5 is a side view of FIG. 1 showing the longerons; and

fig. 6 is a schematic view of the welding device of fig. 1 for welding the top plate of the container.

Reference numerals

110: the cross beam 120: presser foot assembly

130: the welding robot 140: synchronous shaft

150: overvoltage protection 151: limit spring

152: spring mounting post 160: cross beam guide rail

170: a rack 180: crossbeam

190: the guide wheel 200: locking device

210: beam positioning device 220: handle (CN)

230: beam cylinder 240: limiting base

250: the limiting bolt 260: balance gear

270: container, especially container for transporting goods

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art. In the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same elements are denoted by the same reference numerals, and thus the description thereof will be omitted.

A preferred embodiment of the present invention provides a welding apparatus. The welding device is used to weld a weld between the roof and lintel plate of the container 270. In the container 270, the header plates are located at both ends of the top surface of the container 270. The top panel is located on the top surface of the container 270 and between the two header panels. The top plate is lapped on the lintel plate. The container may be a 40-foot container or a 20-foot container.

As shown in fig. 1-6, the welding device includes a frame 170, a longeron 180, a beam 110, and a presser foot assembly 120. The longerons 180 extend along the length of the container 270. A girder 180 is provided at both sides of the container 270. The girder 180 is fixedly disposed. Each girder 180 is provided with a frame 170. The frame 170 is movably disposed along the extending direction of the girder 180. Thus, the cross beam 110 and the presser foot assembly 120 provided on the frame 170 may move with the frame 170 in the extending direction of the longerons 180. Thus, after welding the weld between the roof and the lintel plate at one end of the container 270, the frame 170 may be moved to the other end of the container 270 and then the weld between the roof and the lintel plate at the other end of the container 270 is welded.

In the present embodiment, the girder 180 guides the movement of the frame 170. Thereby, the movement of the frame 170 in the extending direction of the girder 180 is smooth.

The beam 110 and the presser foot assembly 120 are disposed on a frame 170. The beam 110 extends in the width direction of the container 270. One end of the beam 110 is disposed on a frame 170. The other end of the beam 110 is disposed on another frame 170.

The presser foot assembly 120 is at least two. The presser foot assemblies 120 are spaced apart along the direction of extension of the cross beam 110. Each presser foot assembly 120 includes a housing, a presser foot spring and a presser foot. The housing may be a hollow cylinder. The axis of the housing extends in a vertical direction. One end of the housing is fixedly attached to the lower surface of the cross member 110. Such as a welded connection beam 110 at one end of the housing. The other end of the housing is open. The presser foot spring is located in the housing. The presser foot may be of cylindrical configuration. A first end of the presser foot extends into the opening of the housing. In the vertical direction, the presser foot is movably arranged. The second end of the presser foot is located outside the housing. The first end of the presser foot cannot fall out of the opening of the housing. For example, the housing may be provided with a pin, the first end of the presser foot being provided with an annular flange of increased outer diameter, the pin being located on the side of the annular flange remote from the cross beam 110, such that the pin may block the annular flange to prevent the annular flange from falling out of the opening of the housing. A first end of the presser foot is connected to an end of the presser foot spring remote from the cross beam 110. Thus, when the presser foot presses the top plate, the presser foot spring deforms, and the deformed presser foot spring applies an urging force to the presser foot to bias the presser foot toward the top plate.

The presser foot spring is located the casing, like this, when the presser foot compresses tightly the roof, when following welding robot 130 welds the welding seam between roof and the lintel board, the welding spark can not contact the presser foot spring, and then protects the presser foot spring.

The cross member 110 is movably provided on the two racks 170 in the height direction (vertical direction) of the container 270. That is, the cross beam 110 is provided on the two frames 170 movably up and down. Such that beam 110 moves presser foot assembly 120 up and down to cause the presser foot of presser foot assembly 120 to press against or move away from the top plate.

The welding device further comprises a welding robot 130. The welding robot 130 can automatically find the welding seam track and automatically weld along the welding seam track. The welding robot 130 may be an existing welding robot 130 for welding the container 270, and will not be described herein.

Crossbeam 110 moves down to when making the presser foot of presser foot subassembly 120 compress tightly the roof, every presser foot subassembly 120 compresses tightly a position of roof, and welding assembly compresses tightly two at least positions of roof through two at least presser feet like this, so that closely laminate between roof and the lintel board, then welding robot 130 seeks the welding seam orbit automatically, and automatic weld, and from this, two at least positions that two at least presser feet compressed tightly the roof can reduce the hunch-up of roof, and then guarantee welding quality.

The welding device also includes a balance rack, synchronizing shaft 140 and balance gear 260. The number of balance gears 260 and the number of balance racks are both two. The balance gears 260 and the balance racks are disposed in one-to-one correspondence. The counter rack extends in the height direction of the container 270. Each rack 170 is fixedly provided with a balance rack. Thus, one of the balance racks is located at one end of the cross beam 110 and the other balance rack is located at the other end of the cross beam 110.

As shown in fig. 4, there are two synchronizing shafts 140. The two synchronizing shafts 140 are coaxially disposed. The two synchronizing shafts 140 are coupled by a coupling. Thus, the two synchronizing shafts 140 rotate together at the same time. The synchronizing shaft 140 extends in the extending direction of the cross beam 110. Each synchronizing shaft 140 is connected to the cross beam 110 by a bearing. Thus, each synchronizing shaft 140 is rotatably provided on the cross member 110. The end of each synchronization shaft 140 remote from the other synchronization shaft 140 is fixedly connected (e.g., welded or keyed) to a balance gear 260. The balance gear 260 is disposed coaxially with the synchronizing shaft 140. The balance gear 260 is engaged with a corresponding balance rack.

In the present embodiment, when the cross member 110 moves up and down, the synchronizing shaft 140 moves up and down along with the cross member 110. At this time, the two synchronizing shafts 140 rotate at the same rotational speed at the same time by the balance gear 260 and the balance rack. Therefore, the two ends of the cross beam 110 can move synchronously in the vertical direction, the two ends of the cross beam 110 are prevented from moving asynchronously in the vertical direction, and the pressure of the plurality of presser feet on the top plate is prevented from being uneven.

Preferably, the welding device includes a beam cylinder 230. The beam cylinder 230 is provided on the frame 170. The beam cylinder 230 is connected to the beam 110 to drive the beam 110 up and down. Thus, the up and down movement of the cross member 110 is facilitated.

Preferably, the welding device further comprises a cross beam guide 160. A cross rail 160 is fixedly disposed on each frame 170. The cross rail 160 extends in the up-down direction. The ends of the cross beam 110 extend into the cross beam rails 160. Thus, the beam guide 160 guides the up and down movement of the beam 110.

As shown in fig. 2 and 3, the welding device further comprises an overvoltage protection device 150. The overvoltage protection device 150 can include a retaining spring 151 and a spring mounting post 152. The spring mounting post 152 includes a first post and a second post connected to the top of the first post. The diameter of the second cylinder is larger than that of the first cylinder. The frame 170 is provided with a mounting hole corresponding to the lower end of the first cylinder. The axis of the mounting hole extends in the height direction of the container 270. The lower end of the first column body extends into the mounting hole. The first column is movable in the axial direction of the mounting hole. The lower end of the first column body can not be separated from the mounting hole. Thus, the spring mounting post 152 is movably disposed in the height direction of the container 270.

The limiting spring 151 is sleeved on the first column body of the spring mounting column 152. The restraining spring 151 is located directly below a portion of the cross beam 110. Thus, the cross member 110 moves downward to the position of the second column. The cross beam 110 pushes the spring mounting posts 152 downward, thereby compressing the retaining springs 151. The stopper spring 151 deformed at this time applies a force biasing the beam 110 upward. The cross beam 110 is prevented from further downward movement when the force applied to the cross beam 110 by the restraining spring 151 overcomes the force that moves the cross beam 110 downward. Thus, the limiting spring 151 can limit the pressure of the presser foot on the top plate, and avoid the phenomenon that the top plate is crushed or deformed due to overlarge pressure of the presser foot on the top plate, so that overvoltage protection is formed.

The overvoltage protection 150 comprises a first overvoltage protection and a second overvoltage protection. The first overvoltage protection means is located above the second overvoltage protection means in the vertical direction. In this way, the second overvoltage protection device is used for overvoltage protection when welding standard containers. The first overvoltage protection is used for overvoltage protection when welding tall containers (the height dimension of the tall containers is greater than the height dimension of standard containers). It will be appreciated that the second overpressure protection can be constructed movably or detachably. In this way, when the height of the container 270 to be welded increases, the second overvoltage protection can be removed or dismantled and the cross beam 110 can then be moved to a position higher than the position of use of the second overvoltage protection. The second overvoltage protection means is then moved back or mounted back into its position of use. In this way, it is avoided that the second overvoltage protection blocks a lateral upward movement for welding containers 270 of large height dimensions.

The welding device further comprises a limit bolt 250 and a limit base 240. The limit latch 250 is detachably provided on the limit base 240. The limit base 240 is disposed on the frame 170. The spacing bolt 250 may limit the distance of lateral upward movement when the welding device is used to weld a standard container 270.

Preferably, the girder 180 may be an i-beam. The welding device also includes a guide wheel 190. The guide wheel 190 is rotatably provided on the frame 170. At least one set of guide wheels 190 is provided on each frame 170. The set of guide wheels 190 is two. In each group of guide wheels 190, two guide wheels 190 are arranged in sequence from top to bottom. In each set of guide wheels 190, there is a gap between the outer circumferential surfaces of the two guide wheels 190. One upper wing of the i-beam is disposed in the space between the two guide wheels 190 of each set of guide wheels 190. The outer periphery of the guide wheel 190 thus abuts the upper wing plate of the girder 180. As the frame 170 moves, the guide wheels 190 rotate. This reduces the friction when the frame 170 moves.

As shown in fig. 5, the welding apparatus further includes a locking device 200. The locking device 200 may comprise a locking bolt. The locking bolt is threadedly coupled to the frame 170. The lock bolt may abut an outer surface of the longeron 180 after passing out of the frame 170. Thus, when the frame 170 is moved to a predetermined position along the length of the container 270, the locking bolt may be tightened to lock the frame 170 to the girder 180.

Preferably, the welding device further comprises a handle 220. When the locking bolt is unscrewed so that the housing 170 can move in the length direction of the container 270, the housing 170 may be pushed and pulled by the handle 220 so that the housing 170 moves in the length direction of the container 270.

The welding device also comprises a container conveying chain and a container positioning device. The container conveyor chain may move the containers 270 to be processed to the processing station. The container positioning device is used to position the container 270 in the processing position.

The container 270 also includes a beam positioning device 210. The beam positioning device 210 may include a beam positioning bolt. The beam positioning bolt is in threaded connection with the frame 170. The beam positioning bolts may abut the outer surface of the beam 110 after passing out of the frame 170. Thus, when the welding device stops welding, the beam positioning device 210 can be tightened to lock the beam 110 to the frame 170. When it is desired to move the beam 110, the beam positioning device 210 can be unscrewed from the beam 110.

The container positioning device comprises a lifting platform, a plane reference cushion block, a side surface reference positioning block, an end surface reference positioning block, a transverse pushing oil cylinder and a longitudinal pushing oil cylinder. The axis of the lateral thrust cylinder is movable in the width direction of the container 270. The longitudinal thrust cylinder may be movable along the length of the container 270.

In this embodiment, the processing flow of the container 270 is as follows:

the container conveying chain moves the container 270 to be processed to the station;

the lift platform lowers the container 270 onto the planar reference pad;

the lateral pushing cylinder operates to push the outer side surface of the bottom corner fitting of one side portion of the container 270 in the width direction of the container 270 so that the outer side surface of the bottom corner fitting of the other side portion of the container 270 abuts against the lateral reference positioning block;

the longitudinal pushing oil cylinder acts to push the outer end face of the bottom corner fitting of one end of the container 270 in the length direction of the container 270 so that the outer end face of the bottom corner fitting of the other end of the container 270 abuts against the end face reference positioning block;

the cross beam 110 moves downward so that the presser foot presses the top plate to the lintel plate;

the welding robot 130 automatically welds the weld between the top plate and the lintel plate;

the welding robot 130 finishes welding and then receives and cleans the gun;

the cross beam 110 moves upwardly to return the presser foot back away from the top plate to complete the welding of the weld between the current top plate and header plate.

The welding device of the embodiment is used for welding the welding seam between the top plate and the lintel plate of the container, so that the production efficiency is improved, the labor intensity of workers is reduced, and the camber restoration of the lintel plate after welding is improved by about 15% compared with the existing production process and equipment.

The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the invention to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

The flows described in all the preferred embodiments described above are only examples. Unless an adverse effect occurs, various processing operations may be performed in a different order from the order of the above-described flow. The above-mentioned steps of the flow can be added, combined or deleted according to the actual requirement.

Further, the commands, command numbers, and data items described in all the preferred embodiments described above are only examples, and thus the commands, command numbers, and data items may be set in any manner as long as the same functions are achieved. The units of the terminal of the preferred embodiments may also be integrated, further divided or subtracted according to actual needs.