CN214641397U - Welding liner supporting device, tool and U-rib welding system - Google Patents

Abstract

The utility model provides a welding liner strutting arrangement, frock, U rib welding system, welding liner strutting arrangement includes: the trolley comprises a trolley main body, a telescopic mechanism and a clamping mechanism, wherein the trolley main body is used for moving in the welding direction inside an object to be welded; the clamping mechanism is connected with the trolley main body through the telescopic mechanism and is used for clamping the liner; the telescoping mechanism may drive the clamping mechanism such that the liner is moved away from or closer to the weld. The utility model discloses a welding liner strutting arrangement, frock, U rib welding system can improve welding efficiency and welding quality.

Description

Welding liner supporting device, tool and U-rib welding system

Technical Field

The utility model relates to a welding technique, concretely relates to welding liner strutting arrangement, frock, U rib welding system.

Background

Steel box girder structure all can be used to present large-scale bridge, and steel box girder mainly used provides the support, avoids the bridge to warp. The steel box girder is generally formed by connecting a top plate, a bottom plate, a closed rib and other components in an all-welded mode, and the bottom plate and the closed rib form a U-shaped rib plate unit structure. In the traditional bridge plate unit welding process, only external penetration welding is required for welding the U rib plate unit, and due to the special structure of the U rib and the plate unit, the U rib plate unit is not supported by an internal welding seam, so that a large number of defects are easily caused by welding penetration. In bridge repair, a liner tool is also adopted, however, the high-efficiency mass production of the U rib plate units cannot be satisfied. In the prior art, a scheme of adopting a movable liner tool is adopted, however, the movable liner tool is mainly used for full penetration welding of single-side welding and double-side forming, and the liner tool cannot meet the condition of only requiring external penetration welding. In the prior art, a liner supporting device, a tool, a U-rib welding system and a method suitable for external penetration welding are not available, the welding quality cannot be guaranteed, and the production rate is limited.

SUMMERY OF THE UTILITY MODEL

To the above defect or improvement demand of prior art, the utility model provides a welding liner strutting arrangement, frock, U rib welding system and method can improve welding efficiency and welding quality.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:

in one aspect, a welding pad support device is provided, the welding pad support device comprising: the trolley comprises a trolley main body, a telescopic mechanism and a clamping mechanism, wherein the trolley main body is used for moving in the welding direction inside an object to be welded; the clamping mechanism is connected with the trolley main body through the telescopic mechanism and is used for clamping the liner; the telescoping mechanism may drive the clamping mechanism such that the liner is moved away from or closer to the weld.

In one embodiment of this application, the dolly main part includes walking wheel, leading wheel, the walking wheel is located dolly main part bottom is used for supporting dolly main part walking, the leading wheel is located dolly main part both sides are used for with treat that the contact of welding object inner wall advances line location direction.

In one embodiment of the present application, the trolley main body includes a trolley driving device for driving the trolley main body to move along the welding direction.

In one embodiment of the application, telescopic machanism includes telescopic link and flexible driving source, flexible driving source drive the telescopic link is flexible to the drive fixture makes the liner is kept away from or is close to the welding seam.

In one embodiment of the application, the clamping mechanism is arranged on one side or two sides of the trolley main body.

In one embodiment of the present application, the clamping mechanism includes: the device comprises a base body, a first limiting structure, a second limiting structure and a limiting and clamping structure; the first limiting structure is arranged at one end of the base body, the limiting and clamping structure is arranged at the other end of the base body, and the first limiting structure and the limiting and clamping structure are used for longitudinally clamping the gasket; the second limit structure is arranged above the base body, the base body is provided with a protruding structure, and the second limit structure and the protruding structure are used for limiting the vertical movement of the gasket.

In an embodiment of the application, first limit structure can dismantle set up in the one end of base member, first limit structure includes draw-in groove and limiting plate, the draw-in groove is located the base member with between the second limit structure, the limiting plate can insert the draw-in groove.

In one embodiment of the application, the limiting and clamping structure comprises a compression spring and a pressing plate, one end of the compression spring is connected with the base body, the other end of the compression spring is abutted to one side of the pressing plate, and the other side of the pressing plate is used for placing a gasket.

In one embodiment of the present application, the second limiting structure is detachably connected above the base body, and the second limiting structure includes a first plate and a second plate, and the second plate is bent downward to form an included angle with the first plate, so as to limit the lateral movement of the gasket.

In one embodiment of the present application, the protruding structure of the base is a longitudinally extending protrusion; the cross section of the bulge is arc-shaped.

In one embodiment of the present application, the material of the substrate is copper.

This application on the other hand still provides a welding pad frock, welding pad frock includes as above any one welding pad strutting arrangement, welding pad frock still includes a set of liner, a set of liner includes the polylith liner, but polylith liner longitudinal arrangement centre gripping in fixture.

In one embodiment of the present application, the liner is a ceramic liner; the set of pads comprises 6-8 pads; the total length of the set of pads is 180-220 mm.

The present application further provides a U-rib welding system, the U-rib welding system includes the welding pad support device or the welding pad fixture as described in any one of the above, and the U-rib welding system further includes an external welding device.

The application also provides a U-rib welding method, which comprises the step of welding by using the U-rib welding system.

The welding liner supporting device, the tool, the U-rib welding system and the method can improve welding efficiency and welding quality.

Compared with the prior art, the beneficial effects of the utility model reside in at least:

(1) the liner supports the welding seam from the inside, and the trolley main body drives the liner to walk synchronously along with the outer welding, so that the outer welding quality is greatly improved, the trolley main body is flexibly arranged, the stability is high, and the production efficiency is improved.

(2) The welding liner supporting device can be driven independently, the walking of the trolley main body and the driving of the clamping mechanism are both electrically controlled, the operation is convenient, the control is more convenient, and the manufacturing and maintenance cost is low.

(3) The welding liner tool is designed to be detachable, flexible in arrangement, convenient to disassemble and assemble, and convenient to replace due to loss caused by overheating.

Drawings

Fig. 1 is a schematic view of the overall structure of a bonding pad supporting device according to an embodiment of the present application.

Fig. 2 is a side view of a bonding pad support apparatus according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a portion of a weld pad support apparatus according to an embodiment of the present application.

Fig. 4 is a schematic view of a clamping mechanism and a welding pad clamping structure according to an embodiment of the present application.

Fig. 5 is a schematic view of a welding pad clamping structure according to an embodiment of the present application.

FIG. 6 is a schematic structural view of a U rib plate unit of an object to be welded according to an embodiment of the present application.

Fig. 7 is a schematic cross-sectional view of a weld pad support device entering a U-ribbed plate unit according to one embodiment of the present application.

FIG. 8 is a schematic view of a U-rib welding system according to one embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "longitudinal", "top", "bottom", "inner", "outer", "circumferential" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and 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 therefore, should not be construed as limiting the present invention. The interpretation of such words should be made at the discretion of the person skilled in the art.

In the present invention, unless otherwise expressly stated or limited, the terms "set", "mounted", "connected", "fixed", and the like are to be construed broadly in view of the skilled person in the art, for example, "connected" may be a fixed connection, a detachable connection, or an integral part; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

In one embodiment of the present application, referring to fig. 1-3, a bonding pad supporting apparatus includes: the welding device comprises a trolley main body 101, a telescopic mechanism 103, a clamping mechanism 102, and the trolley main body 101 is used for moving in a welding direction inside an object to be welded. The clamping mechanism 102 is connected with the trolley main body 101 through a telescopic mechanism 103, and the clamping mechanism 102 is used for clamping the pad. The telescoping mechanism 103 may actuate the clamping mechanism 102 to move the liner away from or closer to the weld.

In one embodiment, the cart body 101 has a base 1010, the base 1010 being located at the bottom of the cart body. The base 1010 is mainly used for supporting the cart body and other components, and the specific structure of the base is not limited in the present application. The base may have a plate-like structure or a truss structure. In one embodiment, the base 1010 has support structures at the front and rear ends for supporting associated components. In one embodiment, the support structure is a support plate 1016, including a front support plate 1016a and a rear support plate 1016 b. The outer contour shape of the supporting plate is matched with the cross-sectional shape of the inner cavity of the object to be welded.

In one embodiment of the present application, the trolley body 101 has a running gear for supporting the trolley body to run. Specifically, a road wheel 1014 is included. The walking wheel is located dolly main part bottom, and is specific, and the walking wheel sets up on the base. In this embodiment, the traveling wheels are four, 1 each in front, rear, left, and right. The walking direction of the walking wheels is along the front-back direction of the trolley main body, namely the welding direction of the object to be welded.

In one embodiment of the application, the trolley body 101 is provided with a guide device for positioning and guiding the trolley body during movement. Specifically, the guiding device includes guiding wheels 1015, and in one embodiment, the guiding wheels 1015 are located at two sides of the trolley main body, and 1 guiding wheel is located at the front and back of each side, and 4 guiding wheels are located in total, and are used for contacting with the inner wall of the object to be welded to perform positioning and guiding. Specifically, the guide wheels 1015 are disposed on the support plate 1016, with 1 guide wheel on each of the left and right sides of the front and rear support plates. The rotating shaft direction of the guide wheel is approximately vertical. In one embodiment, the guide wheels are mounted on the lower portions of the front and rear support plates. In one embodiment, a set of left and right guide wheels may also be mounted in the middle of the base 1010. The outer contour shape of the supporting plate is matched with the cross-sectional shape of the inner cavity of the object to be welded, and the guide wheel is arranged on the supporting plate, so that the distance between the trolley main body and the object to be welded is ensured to be constant, and the trolley main body is prevented from deviating in the working process.

In one embodiment of the application, the trolley body comprises a trolley driving device for driving the trolley body to move along the welding direction. In one embodiment, the cart driving device includes a cart driving motor 1011, a speed reducer 1012, and a transmission 1013. The trolley driving motor 1011 is arranged on the base, one side of the speed reducer 1012 is connected with the trolley driving motor 1011, the other side of the speed reducer 1012 is connected with the transmission mechanism 1013, and the specific structure of the transmission mechanism 1013 is not limited. In one embodiment, the drive mechanism includes a drive shaft and/or chain drivingly connected to the road wheels 1014. The power output by the speed reducer 1012 is transmitted to the roller 1014 through the transmission shaft and/or chain transmission, and drives the roller to rotate, so as to drive the trolley main body to move. One side of the transmission mechanism 1013 is connected with a front support plate 1016a, and the front support plate 1016a is provided with jacks for controlling cables and power lines, so as to facilitate wiring.

In one embodiment, support rods 1017 are disposed between the front support plate 1016a and the rear support plate 1016b, preferably 2-3 support rods, 1 support rod being disposed on the side where the clamping mechanism 102 is disposed, and 1-2 support rods being disposed on the side where the clamping mechanism 102 is not disposed. The trolley driving motor 1011, the speed reducer 1012 and the like are positioned in the space formed by the support rod and the front and rear support plates. The supporting rods are arranged, so that the strength and stability of the trolley main body can be enhanced, and a driving device on the trolley main body can be effectively protected.

In one embodiment, an encoder 1019 is included, mounted inside the rear support plate 1016 b. The speed control device is used for controlling the longitudinal movement speed of the trolley main body, the encoder feeds the rotating speed back to the PLC through the counting wheel to calculate the real-time running speed of the welding liner supporting device, and after the PLC carries out speed comparison, the rotating speed of the trolley driving motor is controlled to ensure that the welding liner supporting device is consistent with the outer welding gantry moving speed of the outer welding equipment.

In one embodiment, the telescoping mechanism 103 includes a telescoping rod 1018 and a telescoping drive source 1012 that drives the telescoping rod to telescope, thereby driving the clamping mechanism to move the liner away from or closer to the weld. In one embodiment, the telescopic driving source 1012 is an electric driving source, the cart body 101 is connected with the clamping mechanism 102 through a telescopic rod 1018, and the telescopic rod 1018 is electrically controlled to push the clamping mechanism after being extended, so that the gasket on the clamping mechanism is attached to the welding seam. In one embodiment, the telescopic drive source 1012 is a telescopic drive motor.

In one embodiment, the clamping mechanism is arranged on one side of the trolley main body and can be used for turning over the one-side ship-shaped welding of the platform. In this embodiment, the guide wheels may be installed only on the side of the front and rear support plates where the clamping mechanism is not provided. Of course, the leading wheel can be installed in the both sides of preceding, back backup pad, through the distance that the accurate calculation leading wheel stretches out for when the leading wheel with treat that the welding object contacts, the liner just can laminate with the welding seam back, prevents fixture and treats that the welding object from producing the collision, plays the guard action. Of course, the clamping mechanisms can also be arranged on the two sides of the trolley main body according to requirements.

In one embodiment, referring to fig. 4, the clamping mechanism 102 comprises: the device comprises a base body, a first limiting structure, a second limiting structure and a limiting and clamping structure; the first limiting structure is arranged at one end of the base body, the limiting and clamping structure is arranged at the other end of the base body, and the first limiting structure and the limiting and clamping structure are used for longitudinally clamping the gasket 1024; the second limit structure is arranged above the base body, the base body is provided with a protruding structure, and the second limit structure and the protruding structure are used for limiting the vertical movement of the gasket.

In one embodiment, the material of the substrate is copper. Specifically, the substrate includes a copper sleeve 1022. The liner 1024 is a ceramic liner.

In one embodiment, the first limit structure is detachably arranged at one end of the base body. In one embodiment, the first stop structure includes a catch 1027 and a stop plate 1023, the catch being located between the base and the second stop structure, the stop plate being insertable into the catch. It can be understood that the clamping groove can be directly formed by the base body itself, and can also be formed by a gap between the base body and the second limiting structure. Through setting up the draw-in groove structure, can carry out spacing fixed to liner one end, still make things convenient for the liner dismouting. The material of the limiting plate 1023 may be plain carbon steel.

In one embodiment, the positive clamping structure is configured to generate a longitudinal clamping force to clamp the liner. In one embodiment, the positive grip structure includes a resilient element for generating a longitudinal spring force to grip the pad. In one embodiment, the positive clamping structure includes a compression spring 1026, a pressure plate 1025, one end of the compression spring is connected to the base, the other end of the compression spring abuts one side of the pressure plate, and the other side of the pressure plate is used for placing the gasket. The platen 1025 may be made of plain carbon steel. It can be understood that, spacing clamping structure can also include spring guide post, guide post one end and base member fixed connection, the guide post other end and clamp plate fixed connection, compression spring cover is on the guide post, the guide post is scalable, and the pressure through compression spring is with the clamp plate butt on the liner, the longitudinal movement of restriction liner.

In embodiments of the present application, the clamping mechanism 102 may simultaneously clamp a group of liners, which may include multiple liners, that may be longitudinally arranged to be clamped to the clamping mechanism, by providing a positive clamping structure. In one embodiment, a set of pads includes 6-8 pads. The total length of one set of pads is 180-220 mm. In one embodiment of the present application, 7 pads are included. The utility model provides a spacing tight structure of clamp provides along fore-and-aft elasticity, and the tight pad group in top, when certain pad breakage back, compression spring can also push up remaining pad tightly, in an embodiment, can also push up 6 pads tightly at least.

In one embodiment, the second retention structure is removably attached to the base and includes a cover 1021. The cover plate 1021 is screwed to the upper part of the copper sleeve 1022. The material of the cover plate 1021 may be plain carbon steel.

In one embodiment, referring to fig. 5, the second restraint structure includes a first panel 1021a and a second panel 1021b that is bent downward at an angle to the first panel for limiting lateral movement of the pad.

In one embodiment, the angle formed by the downward bending of the second plate and the first plate is matched with the cross-sectional shape of the gasket; it will be appreciated that the shape of the gasket is adapted to the cross-sectional shape of the cavity of the object to be welded, and in particular to the shape of the joint where it is to be applied. In this embodiment, the object to be welded is a U-ribbed plate unit, and the pad is attached to the U-ribbed longitudinal fillet. The section bottom angle (the angle at the joint with the welding seam) of the liner is adapted to the included angle formed by the U rib and the steel plate at the welding seam of the U rib plate unit. In one embodiment, the angle formed by the U-shaped rib and the steel plate is 76 degrees, and correspondingly, the section bottom angle of the liner is 76 degrees, and the angle formed by the downward bending of the second plate and the first plate is 104 degrees.

For the vertical limit fixation of the gasket and the clamping mechanism, a fixed protruding structure can be arranged on one side of the base body, and a structure matched with the protruding structure of the base body is arranged on one side of the gasket, which is in contact with the base body. The shape of the protruding structure can be a mortise and tenon structure.

In one embodiment of the present application, the protruding features of the base 1022 are longitudinally extending protrusions 1022a, and the side of the pad in contact with the base has female features 1024a that mate with the protruding features of the base. Preferably, the cross section of the protrusion is circular arc. The arc-shaped bulge is adopted, correspondingly, one side of the gasket is of an arc-shaped sunken structure, and the gasket is convenient to process, easy to position and convenient to mount and dismount.

In the embodiment of this application, through the protruding structure of base member, the liner with the one side setting of base member contact with the protruding structure assorted structure of base member to and the first board and the second board that the setting of second limit structure formed certain contained angle, can be to the vertical of liner with transversely form effectual fixed, and make things convenient for the dismouting.

In one embodiment of the present application, the side of the pad in contact with the second plate of the second limiting structure has a projection 1024b, the width of which corresponds to the thickness of the second plate. The width of the boss of the gasket is set to be adaptive to the thickness of the second plate, so that the gasket and one side of the object to be welded, which is contacted, can be in a same line, and the gasket is more closely attached.

Referring to fig. 3, for the specific structure of the telescopic mechanism 103, in one embodiment, the base 1010 has two square platforms on the side close to the clamping mechanism 102, each square platform has a telescopic driving motor therein, and one end of the telescopic rod 1018 is located in the square platform and connected with the telescopic driving motor. The other end of the telescopic rod 1018 is connected with a right-angle joint 1031, and the other end of the right-angle joint 1031 is connected to the copper sleeve 1022. After telescopic link 1018 circular telegram, the other flexible driving motor corotation of telescopic link, the telescopic link stretches out, and right angle joint 1031 pushes away the liner to welding seam department under the drive of telescopic link, makes liner and welding seam laminating, and flexible driving motor reversal after the welding is accomplished, and the telescopic link is withdrawed, and right angle joint 1031 contracts under the drive of telescopic link, and liner 102 leaves the welding seam. Of course, the telescoping mechanism 103 may also include a rotating rod that rotates up and down for lifting the copper sleeve 1022 upward. In one embodiment, the telescoping rod 1018 itself is also a rotating rod that can rotate up and down.

In another embodiment of the present application, a welding gasket clamping structure is further provided, where the welding gasket clamping structure includes the clamping mechanism as described above, and the welding gasket clamping structure further includes a set of gaskets, where the set of gaskets includes a plurality of gaskets, and the plurality of gaskets can be longitudinally arranged and clamped by the clamping mechanism.

The liner is a ceramic liner; the set of pads comprises 6-8 pads; the length of the set of pads is 180-220 mm. It will be appreciated that the length of each pad and the number of pads may be adjusted as required. By arranging a plurality of gaskets and setting the total length of the gasket group to be 180-220mm, the welding point of the welding line can be still continuously ensured to be completely covered by the gasket after a certain gasket is damaged.

In an embodiment of the present application, the welding pad clamping structure is assembled in the following manner: fix apron 1021 on copper sheathing 1022 through the screw, form liner clamping space between apron and the copper sheathing, vertical and lateral displacement of liner can be injectd to this clamping space, then insert a piece of gasket 1024 from draw-in groove 1027 one end, insert all the backs with all liners, press the liner, liner one end and spacing clamp structure's clamp plate 1025 butt to further compress compression spring 1026, then insert limiting plate 1023 draw-in groove 1027, the liner is injectd in vertically.

In another embodiment of the present application, a welding pad tool is further provided, where the welding pad tool includes the welding pad support device as described above, and the welding pad tool further includes a set of pads, where the set of pads includes multiple pads, and the multiple pads may be longitudinally arranged and clamped by a clamping mechanism of the welding pad support device.

The liner is a ceramic liner; the set of pads comprises 6-8 pads; the length of the set of pads is 180-220 mm. By arranging a plurality of gaskets and setting the total length of the gasket group to be 180-220mm, the welding point of the welding line can be still continuously ensured to be completely covered by the gasket after a certain gasket is damaged.

In the embodiment, the pad is arranged on the welding pad supporting device in an assembling mode of the welding pad clamping structure, and during welding, the welding pad supporting device runs to the welding initial end of an object to be welded through the trolley main body, and the pad is aligned to a welding seam to be welded; opening the telescopic rod of the telescopic structure, and tightly pushing the welding line by the gasket; starting welding, and synchronously moving a welding liner supporting device to ensure that the welding liner supporting device is consistent with the moving speed of a welding gun; after welding is finished, the welding pad supporting device stops moving; the telescoping rod is retracted and the liner is removed from the weld.

In another embodiment of the present application, referring to fig. 6 to 8, there is further provided a U-rib welding system, which includes the welding liner support device or the welding liner tool as described above, and further includes an outer welding device, which includes an outer welding gantry having a welding gun thereon.

In one embodiment, the U-rib welding system further includes a support platform 105 and a wire rewinding machine 104. When the welding pad supporting device 1000 is not in operation, the welding pad supporting device 1000 is placed on the supporting platform 105, the wire rewinding machine 104 is placed behind the supporting platform 105, cables are wound on the wire rewinding machine 104 in order, and power is supplied to the welding pad supporting device 1000 through the cables.

In another embodiment of the present application, there is also provided a U-rib welding method including welding using the U-rib welding system described above.

Referring to fig. 6, a schematic view of a welding structure of the U-shaped rib plate unit 100 is shown. The U-rib plate unit includes a steel plate 1 and a U-rib 2. Each U rib plate unit is formed by welding a plurality of U ribs and steel plates, a long and narrow cavity is formed between the steel plates 1 and the U ribs 2, and longitudinal welding seams are formed at the joint parts of the steel plates and the U ribs. In actual use as a deck slab, the steel plate 1 faces upward and the U-rib 2 faces downward. The steel plate 1 is structural steel, the thickness B1 of the steel plate is more than or equal to 12mm, the longitudinal length of the steel plate can reach 16m, and the transverse width of the steel plate can reach 6 m. When the outer corner seams of the lower corners of the two sides of the U rib are welded, the U rib plate unit 100 is fixed on a welding anti-deformation jig.

Referring to fig. 7, a schematic cross-sectional view of a weld pad support apparatus 1000 of the present application inside a U-rib is shown. FIG. 8 is a schematic view of a U-rib welding system according to an embodiment of the present application. Wherein the U-ribbed plate unit 100 is placed on a welding reversible jig (not shown in the drawings).

In one embodiment of the present application, a U-rib welding method includes:

the welding pad supporting device 1000 enters the inner cavity of the U-shaped rib plate unit 100 from a first end (left end in the figure) of the U-shaped rib plate unit 100, which is a welding completion end;

the welding pad supporting device 1000 travels to a second end (right end in the drawing) of the U rib plate unit 100, which is a welding start end;

aligning the fixture 102 to the weld to be welded;

starting the telescopic structure 103, opening the telescopic rod 1018, and pressing the welding line by the gasket 1024;

starting welding, synchronously starting a walking device of the trolley main body of the welding liner supporting device 1000, and ensuring that the speed of the trolley main body is consistent with that of a welding gun;

the welding pad support device 1000 travels back inside the U-rib from the second section until reaching the first end, and welding is complete;

the weld pad support 1000 returns to the support platform 105.

The cable is automatically reeled and paid-up by the take-up machine 104 in the whole process.

It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims (14)

1. A welding pad support device, comprising: the trolley comprises a trolley main body, a telescopic mechanism and a clamping mechanism, wherein the trolley main body is used for moving in the welding direction inside an object to be welded; the clamping mechanism is connected with the trolley main body through the telescopic mechanism and is used for clamping the liner; the telescoping mechanism may drive the clamping mechanism such that the liner is moved away from or closer to the weld.

2. The welding pad supporting device according to claim 1, wherein the trolley main body comprises a walking wheel and guide wheels, the walking wheel is located at the bottom of the trolley main body and used for supporting the trolley main body to walk, and the guide wheels are located on two sides of the trolley main body and used for being in contact with the inner wall of an object to be welded to conduct positioning and guiding.

3. The welding liner support apparatus of claim 1 wherein said carriage body includes a carriage drive for driving said carriage body in a welding direction.

4. The welding pad support device of claim 1, wherein the telescoping mechanism comprises a telescoping rod and a telescoping drive source that drives the telescoping rod to telescope to drive the clamping mechanism to move the pad away from or toward the weld.

5. The welding pad support device of claim 1, wherein the clamping mechanism is disposed on one or both sides of the cart body.

6. The welding pad support device of claim 1, wherein the clamping mechanism comprises: the device comprises a base body, a first limiting structure, a second limiting structure and a limiting and clamping structure; the first limiting structure is arranged at one end of the base body, the limiting and clamping structure is arranged at the other end of the base body, and the first limiting structure and the limiting and clamping structure are used for longitudinally clamping the gasket; the second limit structure is arranged above the base body, the base body is provided with a protruding structure, and the second limit structure and the protruding structure are used for limiting the vertical movement of the gasket.

7. The welding pad support device of claim 6, wherein the first limiting structure is detachably disposed at one end of the base, the first limiting structure comprises a slot and a limiting plate, the slot is located between the base and the second limiting structure, and the limiting plate is insertable into the slot.

8. The welding pad support device of claim 6, wherein the limiting and clamping structure comprises a compression spring and a pressing plate, one end of the compression spring is connected with the base body, the other end of the compression spring abuts against one side of the pressing plate, and the other side of the pressing plate is used for placing a pad.

9. The welding pad support device of claim 6, wherein the second limiting structure is detachably connected above the base body, and the second limiting structure comprises a first plate and a second plate, and the second plate is bent downwards to form an included angle with the first plate for limiting the lateral movement of the pad.

10. The welding pad support device of claim 6, wherein the protruding structure of the base is a longitudinally extending protrusion; the cross section of the bulge is arc-shaped.

11. The bonding pad support apparatus of claim 6, wherein the material of the base is copper.

12. The utility model provides a welding liner frock which characterized in that: the welding pad fixture comprises the welding pad supporting device according to any one of claims 1-11, and further comprises a group of pads, wherein the group of pads comprises a plurality of pads, and the plurality of pads can be longitudinally arranged and clamped on the clamping mechanism.

13. The welding pad tooling of claim 12, wherein: the liner is a ceramic liner; the set of pads comprises 6-8 pads; the total length of the set of pads is 180-220 mm.

14. A U rib welding system which characterized in that: the U-rib welding system comprising the welding pad support device of any one of claims 1-11 or the welding pad fixture of any one of claims 12-13, the U-rib welding system further comprising an external welding apparatus.

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