CN114227052A

CN114227052A - H-shaped steel welding process

Info

Publication number: CN114227052A
Application number: CN202210183237.2A
Authority: CN
Inventors: 高军; 李珊; 刘朝光
Original assignee: Shandong Hongji Petroleum Machinery Equipment Co ltd
Current assignee: Shandong Hongji Petroleum Machinery Equipment Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-03-25
Anticipated expiration: 2042-02-28
Also published as: CN114227052B

Abstract

The invention relates to the technical field of welding, in particular to an H-shaped steel welding process, which comprises the following steps: step S1, assembling; step S2, single-side welding: horizontally placing the assembled H-shaped steel into an automatic input roller way, entering a welding station through an automatic transmission roller way, and performing single-side welding; step S3, double-sided welding: the method comprises the following steps that H-shaped steel with one side welded enters a turnover station, when all the H-shaped steel with one side welded enters the turnover station, turnover equipment on the turnover station lifts the H-shaped steel, turns the H-shaped steel for 180 degrees and sends the H-shaped steel into a welding station again, and the other side is welded; and S4, the H-shaped steel after double-side welding enters the automatic input roller way again, is reversely conveyed to the automatic output roller way, and is output to the detection station through the output roller way. The invention has high process safety, realizes the turnover of the H-shaped steel by adopting the lifting turnover mechanism, has good process stability, saves energy consumption and improves the production efficiency.

Description

H-shaped steel welding process

Technical Field

The invention relates to the technical field of welding, in particular to a welding process of H-shaped steel.

Background

The H-shaped steel is a steel section with an H-shaped section, and is formed by welding two parallel wing plates and a web plate perpendicular to the wing plates, and all parts of the H-shaped steel are arranged at right angles, so that the H-shaped steel has excellent bending resistance in all directions, and the H-shaped steel has the advantages of light structure weight, simplicity in construction, cost saving and the like, and is widely applied to various civil and industrial building structures at present.

At present, the welding forming process of H-shaped steel mainly comprises the following processes: firstly assembling wing plates and web plates, then conveying the assembled H-shaped steel to welding equipment through a roller way for unilateral welding, after unilateral welding is completed, hoisting the H-shaped steel through hoisting equipment, completing turn-over under the assistance of manpower, conveying the turned-over H-shaped steel to the welding equipment again, and completing welding of the other side. At present, automatic operation can be realized through automatic assembling equipment and automatic welding equipment in assembling and welding, but when overturning, most small and medium-sized enterprises still adopt a mode of hoisting and manual assistance to overturn in order to reduce production cost. During operation, the steel cable needs to be wound on the H-shaped steel manually, then the H-shaped steel is lifted by the lifting equipment, turnover is achieved by pulling the steel cable, the H-shaped steel is always in an unstable state in the suspension process, workers need to perform auxiliary operation beside the H-shaped steel, production efficiency is low, labor intensity is high, and potential safety hazards are increased.

Disclosure of Invention

In order to solve at least one of the above technical problems, the present invention provides an H-shaped steel welding process, which comprises the following steps:

step S1, assembling: feeding one web plate and two wing plates into an assembling station, and automatically positioning, clamping and spot-welding through automatic assembling equipment to complete the assembling of the H-shaped steel;

step S2, single-side welding: horizontally placing the assembled H-shaped steel into an automatic input roller way, entering a welding station through an automatic transmission roller way, and performing single-side welding on a web plate and a wing plate through automatic welding equipment;

step S3, double-sided welding: the method comprises the following steps that H-shaped steel with one side welded enters an overturning station, after all the H-shaped steel with one side welded enters the overturning station, overturning equipment on the overturning station lifts the H-shaped steel, overturns the H-shaped steel by 180 degrees and sends the H-shaped steel into a welding station again, and the other sides of a web plate and a wing plate are welded through automatic welding equipment;

and S4, the H-shaped steel after double-side welding enters the automatic input roller way again, the automatic input roller way is switched to reverse conveying, and the H-shaped steel is conveyed to the automatic output roller way and is output to the detection station through the output roller way.

Preferably, the tipping arrangement includes tilting mechanism and automatic rollgang group, tilting mechanism includes two elevating platforms that set up along the direction of delivery interval, two be equipped with centre gripping rotary mechanism on the elevating platform respectively, automatic rollgang group includes first roll table, second roll table and third roll table, first roll table is located tilting mechanism's one end and butt joint automatic weld equipment, and butt joint department is equipped with infrared sensor, the third roll table is located tilting mechanism's the other end, the second roll table is located two between the elevating platform.

Preferably, the clamping and rotating mechanism comprises a rotating drum with openings at two ends, gear teeth are circumferentially arranged at the center of the outer peripheral wall of the rotating drum, tapered inclined planes are arranged on two sides of the gear teeth in a tapered mode, two symmetrical first telescopic rods are horizontally arranged on the inner peripheral wall of the rotating drum, two symmetrical second telescopic rods are vertically arranged, the free end of each first telescopic rod is connected with the first clamping mechanism, and the free end of each second telescopic rod is connected with the second clamping mechanism.

Preferably, the first clamping mechanism comprises a vertically arranged first clamping plate, a first driven row roller capable of rotating along the conveying direction is arranged on the inner end face of the first clamping plate, the second clamping mechanism comprises a horizontally arranged second clamping plate, a driving roller seat is arranged at the center of the upper portion of the second clamping plate, a driving row roller capable of rotating along the conveying direction and a first servo motor capable of driving the driving row roller to rotate are arranged on the upper end face of the driving roller seat, third telescopic rods are symmetrically arranged on two side walls, parallel to the conveying direction, of the driving roller seat, the free end of each third telescopic rod is connected with a third clamping plate, the third clamping plate can slide relative to the second clamping plate, a second driven row roller is arranged on the outer side wall of the third clamping plate, a third driven row roller is arranged on the upper end face of the third clamping plate, and a chamfer is formed in the welding position of the third clamping plate.

Preferably, tilting mechanism still including the drive the rotatory rotary driving mechanism of centre gripping rotary mechanism, rotary driving mechanism locates including the symmetry the toper bearing roller mechanism of elevating platform up end to and locate two drive gear between the toper bearing roller mechanism, second servo motor drive gear is rotatory, toper bearing roller mechanism is including fixed locating two articulated seats of elevating platform up end, two but swivelling joint roller axle between the articulated seat, roller center department is equipped with driven gear, driven gear bilateral symmetry be equipped with the toper bearing roller corresponding in the toper inclined plane of rotary drum.

Preferably, the turnover mechanism further comprises a lifting driving mechanism for driving the lifting platform to lift, the lifting driving mechanism comprises a base, the base is provided with a driving box and four symmetrically arranged lifting support rods, the two lifting support rods are fixed on the lower end face of the lifting platform, a driving assembly is arranged in the driving box, and the driving assembly drives the lifting support rods to lift synchronously.

Preferably, drive assembly is including two first pivots that the symmetry set up, first pivot is rotationally fixed in through the fixing base in the drive case, the both ends of first pivot are fixed respectively and are equipped with first bevel gear, one first bevel gear meshing second bevel gear, another two third bevel gear that first bevel gear meshing symmetry set up are fixed in third servo motor drive on the drive case second bevel gear is rotatory, and the rotation runs through the second pivot fixed connection of drive case lateral wall third bevel gear, second pivot rotary drive lift branch vertical lift.

Preferably, the lifting support rod comprises a support rod seat fixed on the base, and the second rotating shaft is rotatably inserted into the support rod seat and fixedly connected with a fourth bevel gear; the inner cylinder is fixedly arranged on the upper end face of the support rod seat, the inner ring wall of the inner cylinder is provided with an annular groove, an internal thread ring is arranged in the annular groove, and two axial long through holes are symmetrically formed in the side wall of the inner cylinder below the annular groove; the top open-ended spline housing is rotatable to be located in the inner tube, but the spline housing is rotationally fixed in through the third pivot the bottom of strut seat, be equipped with in the third pivot with fourth bevel gear meshing's fifth bevel gear, the sealed slidable of lift axle is located in the spline housing, by including spline portion, connecting portion and screw thread portion from bottom to top in proper order, the symmetry is equipped with two horizontally connecting rods on the connecting portion, the connecting rod passes fixed connection slip cap is located behind the axial length through-hole the outside urceolus of inner tube, screw thread portion threaded connection the internal thread ring.

Preferably, the internal thread ring comprises a first half ring and a second half ring which are detachably connected, wherein two-way memory springs are respectively arranged at the centers of the outer annular surfaces of the first half ring and the second half ring, the two-way memory springs are fixed in the annular groove and externally connected with a power line, the internal thread ring is in an extension state at room temperature, and the internal thread ring enters a contraction state after being electrically heated.

Preferably, the inside axial of lift axle is equipped with multistage air flue, multistage air flue includes the cylindrical air chamber that a plurality of axial equidistance set up, adjacent two be equipped with first gas pocket and a plurality of second gas pocket rather than the intercommunication in turn between the cylindrical air chamber, first gas pocket is located the center department of a terminal surface of cylindrical air chamber, it is a plurality of second gas pocket circumference equidistance is located on another terminal surface of cylindrical air chamber, work as when the lift axle shifts up, the lift axle with form the gas storage chamber between the spline housing.

Compared with the prior art, the invention has the following beneficial technical effects:

1. the traditional suspension overturning is replaced by lifting overturning, the overturning equipment has a compact structure and good overturning safety, and the process safety is greatly improved;

2. the clamping and rotating mechanism can realize rolling clamping in the conveying process of the H-shaped steel, stable clamping is realized under the condition that transmission is not influenced, thermal deformation caused during welding of the H-shaped steel can be corrected, a chamfer is arranged at the position, facing the welding position, of the third clamping plate, so that friction and scratch on the welding position in the clamping process can be avoided, welding quality is influenced, the automatic rotation of the clamping and rotating mechanism can be realized through the rotary driving mechanism, the labor intensity of workers is reduced, the axial deviation of the clamping and rotating mechanism can be avoided through the conical carrier roller mechanism, and the stability of equipment is improved;

3. the lifting driving mechanism can drive the two lifting tables to lift synchronously, so that the H-shaped steel is prevented from sliding to a low position during lifting, and the process stability is improved;

4. the lifting support rod is lifted through the driving assembly, the internal thread ring is driven to be detached through the two-way memory spring to realize free falling reset, the reset efficiency is improved, and the energy consumption is reduced;

in conclusion, the process of the invention has high safety, the lifting turnover mechanism is adopted to turn over the H-shaped steel, the process stability is good, the energy consumption is saved, and the production efficiency is improved.

Drawings

FIG. 1 is a process flow diagram of the present invention;

FIG. 2 is a schematic structural view of the turning apparatus;

FIG. 3 is a schematic structural diagram of the turnover mechanism in FIG. 2;

FIG. 4 is a schematic structural view of the clamping and rotating mechanism shown in FIG. 3;

FIG. 5 is a schematic structural view of the first clamping mechanism of FIG. 4;

FIG. 6 is a schematic structural view of the second clamping mechanism of FIG. 4;

FIG. 7 is a schematic view of the rotary drive mechanism of FIG. 3;

FIG. 8 is an exploded view of the lift drive mechanism of FIG. 3;

FIG. 9 is an exploded view of the lifting strut of FIG. 8;

FIG. 10 is a cross-sectional view of the inner barrel of FIG. 9;

FIG. 11 is a broken away schematic view of the internally threaded ring of FIG. 9;

FIG. 12 is a cross-sectional view of the lifting strut in its initial state;

FIG. 13 is a cross-sectional view of the lift pin in a raised condition.

Description of reference numerals:

1. tilting mechanism, 11, lifting platform, 12, clamping and rotating mechanism, 121, drum, 1211, gear teeth, 1212, tapered ramp, 122, first telescopic rod, 123, second telescopic rod, 124, first clamping mechanism, 1241, first clamping plate, 1242 first driven row roller, 1243, first guide protrusion, 12431, first guide surface, 125, second clamping mechanism, 1251, second clamping plate, 1252, drive roller holder, 12521, drive row roller, 12522, first servo motor, 1253, third telescopic rod, 1254, third clamping plate, 12541, second driven row roller, 12542, third driven row roller, 12543, chamfer, 1255, second guide protrusion, 12551, second guide surface, 13, lifting drive mechanism, 131, base, 132, drive box, 133, drive assembly, 1331, first rotating shaft, 1332, first tapered gear, 1333, tapered gear, 4, third tapered gear, 1335, second tapered gear, 1335, and second tapered gear, A second rotating shaft, 1336, a fixed seat, 134, a lifting strut, 1341, a strut seat, 13411, a first shaft hole, 13412, a second shaft hole, 1342, a fourth bevel gear, 1343, a spline housing, 13431, a third rotating shaft, 1344, a fifth bevel gear, 1345, a lifting shaft, 13455, a multi-stage air passage, 13456, a cylindrical air chamber, 13457, a first air hole, 13458, a second air hole, 13459, an air storage chamber, 13451, a spline portion, 13452, a connecting portion, 13453, a threaded portion, 13454, a connecting rod, 1346, an internal threaded ring, 13461, a first half ring, 13462, a second half ring, 13463, a two-way memory spring, 13464, a plug shaft, 13465, a plug hole, 1347, an inner cylinder, 13471, an axial through hole, 13472, an annular groove, 1348, an outer cylinder, 135, a third servo motor, 14, a rotary driving mechanism, 141, a cone mechanism, a hinge seat, a support roller, a driven gear, 1412, a driven roller 142, a driven roller shaft, and a driven roller, 143. a second servo motor 2, an automatic conveying roller way group 21, a first roller way 22, a second roller way 23 and a third roller way.

Detailed Description

The following description of the embodiments of the present invention refers to the accompanying drawings and examples:

it should be noted that the structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are only for the purpose of understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined by the following claims, and all modifications of the structures, changes in the proportions and adjustments of the sizes and other dimensions which are within the scope of the disclosure should be understood and encompassed by the present disclosure without affecting the efficacy and attainment of the same.

In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Example 1

With reference to fig. 1, the embodiment provides an H-shaped steel welding process, which includes the following steps:

The horizontal position in the embodiment means that the web plate of the H-shaped steel is parallel to the automatic input roller way, the wing plates are perpendicular to the automatic input roller way and are placed, and the two wing plates are in direct contact with the automatic input roller way. The invention replaces the traditional suspension turnover by lifting turnover, thereby greatly improving the process safety.

Example 2

With reference to fig. 2 and fig. 3, the present embodiment provides a turning apparatus suitable for embodiment 1, and a specific technical scheme is as follows, the turning apparatus includes a turning mechanism 1 and an automatic roller conveyor group 2, the turning mechanism 1 includes two lifting tables 11 arranged at intervals along a conveying direction, two clamping and rotating mechanisms 12 are respectively arranged on the lifting tables 11, the automatic roller conveyor group 2 includes a first roller table 21, a second roller table 22 and a third roller table 23, the first roller table 21 is arranged at one end of the turning mechanism 1 and is butted with the automatic welding apparatus, an infrared sensor (not shown in the figure) is arranged at a butt joint, the third roller table 23 is arranged at the other end of the turning mechanism 1, and the second roller table 22 is arranged between the lifting tables 11.

In the above technical solution, the automatic roller conveyor group 2 is a conventional device in the prior art, that is, the roller is controlled by a motor to rotate to realize forward and reverse transmission, which is not described in detail. The lifting platform 11 of the turnover mechanism 1 can be a platform structure with manual or automatic lifting function in the prior art, and the clamping and rotating mechanism 12 can be a structure capable of manually or automatically clamping and rotating the H-shaped steel.

The working process of the embodiment is as follows: one side gets into tipping arrangement's automatic rollgang group 2 through welded H shaped steel, insert two centre gripping rotary mechanism 12 of tipping arrangement 1 in the removal in-process, after infrared sensor detected that H shaped steel gets into first roll table 21 completely, automatic rollgang group 2 stops to carry, two centre gripping rotary mechanism 12 press from both sides H shaped steel tight respectively, elevating platform 11 raises the back at a take the altitude, two centre gripping rotary mechanism 12 of rotation, make H shaped steel upset 180, after the upset is accomplished elevating platform 11 replies to initial position, two centre gripping rotary mechanism 12 loosen H shaped steel, automatic rollgang group 2 starts, to automatic welding equipment direction transport H shaped steel, carry out the welding of another side.

The tipping arrangement in this embodiment is compact in structure, and the upset security is high.

Example 3

With reference to fig. 4 to 7, the present embodiment provides a clamping and rotating mechanism 12 and a rotation driving mechanism 14 suitable for the turnover mechanism 1 in embodiment 2, and in a specific technical solution as follows, referring to fig. 4, the clamping and rotating mechanism 12 includes a rotating drum 121 with openings at two ends, a gear tooth 1211 is circumferentially disposed at a center of an outer circumferential wall of the rotating drum 121, tapered inclined surfaces 1212 are tapered on two sides of the gear tooth 1211, two symmetrical first telescopic rods 122 are horizontally disposed on the inner circumferential wall of the rotating drum 121, two symmetrical second telescopic rods 123 are vertically disposed, a free end of the first telescopic rod 122 is connected to the first clamping mechanism 124, and a free end of the second telescopic rod 123 is connected to the second clamping mechanism 125. The first telescopic rod 122 and the second telescopic rod 123 may adopt any length-adjustable support rod structure in the prior art, including but not limited to sleeve sliding rods and locking bolts sleeved with each other.

Referring to fig. 5, the first clamping mechanism 124 includes a vertically arranged first clamping plate 1241, a first driven roller 1242 capable of rotating along the conveying direction is disposed on an inner end surface of the first clamping plate 1241, first guide protrusions 1243 are symmetrically disposed on the first clamping plate 1241 at upper and lower ends of the first driven roller 1242, respectively, and the first guide protrusions 1243 are provided with first guide surfaces 12431.

Referring to fig. 6, the second clamping mechanism 125 includes a second clamping plate 1251 horizontally disposed, a driving roller seat 1252 is disposed at the center above the second clamping plate 1251, a driving row roller 12521 rotatable in the conveying direction and a first servo motor 12522 for driving the driving row roller 12521 to rotate are disposed on the upper end surface of the driving roller seat 1252, third telescopic rods 1253 are symmetrically disposed on two side walls of the driving roller seat 1252 parallel to the conveying direction, the free end of the third telescopic rod 1253 is connected to a third clamping plate 1254, the third clamping plate 1254 is slidable relative to the second clamping plate 1251, a second driven row roller 12541 is disposed on the outer side wall, a third driven row roller 12542 is disposed on the upper end surface, a chamfer 12543 is disposed on the welding position of the third clamping plate 1254, a second guide protrusion 1255 is disposed on the third clamping plate 1254 at the lower end of the second driven row roller 12541, and a second guide protrusion 12551 is disposed on the second guide protrusion 1255, the first guide surface 12341 and the second guide surface 12551 form a divergent opening facing the direction of entry of the two wings of the H-beam.

Referring to fig. 7, the rotary driving mechanism 14 includes tapered idler mechanisms 141 symmetrically disposed on the upper end surface of the lifting table 11, and a driving gear 142 disposed between the two tapered idler mechanisms 141, the second servo motor 143 drives the driving gear 142 to rotate, the tapered idler mechanisms 141 include two hinged seats 1411 fixedly disposed on the upper end surface of the lifting table 11, a roller shaft 1412 is rotatably connected between the two hinged seats 1411, a driven gear 1413 is disposed at the center of the roller shaft 1412, and tapered idlers 1414 corresponding to the tapered inclined surfaces 1212 of the rotating drum 121 are symmetrically disposed on both sides of the driven gear 1413.

The working process of the embodiment is as follows: according to the sizes of wing plates and web plates of the H-shaped steel to be welded, the lengths of the first telescopic rod 122 and the third telescopic rod 1253 are adjusted, so that a wing plate clamping area capable of clamping wing plates of the H-shaped steel in a rolling manner is formed by the first driven row rollers 1242 on the first clamping plate 1241 and the second driven row rollers 12541 on the third clamping plate 1254, and the length of the second telescopic rod 123 is adjusted, so that a web plate clamping area capable of clamping web plates of the H-shaped steel in a rolling manner and driving the H-shaped steel to be transmitted is formed by the upper row of driving rollers 12521 and the lower row of driving rollers 12521. When the H-shaped steel is transmitted from the first roller way 21 to the turnover mechanism 1, the H-shaped steel firstly enters the clamping and rotating mechanism 12 close to the first roller way 21, two wing plates of the H-shaped steel are respectively inserted into the two wing plate clamping areas, the web plate is inserted into the web plate clamping area, the H-shaped steel is transmitted to the second roller way 22 under the clamping of the wing plate clamping area and the web plate clamping area, and similarly enters the clamping and rotating mechanism 12 close to the third roller way 23. After the single-side welding is finished, the H-shaped steel crosses the first roller way 21, the second roller way 22 and the third roller way 23 and is clamped by the two clamping and rotating mechanisms 12, the automatic conveying roller way group 2 and the driving row roller 12521 stop conveying at the moment, the lifting platform 11 is lifted, the H-shaped steel is far away from the automatic conveying roller way group 2, the second servo motor 143 is started, the driving gear 142 is controlled to rotate, the gear teeth 1211 meshed with the driving gear 142 drive the clamping and rotating mechanisms 12 to rotate by 180 degrees, after the overturning is finished, the second servo motor 143 is closed, the lifting platform 11 is reset, the H-shaped steel enters the automatic conveying roller way group 2 again, the automatic conveying roller way group 2 and the driving row roller 12521 reversely convey the H-shaped steel, and the H-shaped steel is conveyed to the automatic welding equipment to weld the other side.

The clamping and rotating mechanism 12 in the embodiment can realize rolling clamping in the conveying process of H-shaped steel, stable clamping is realized under the condition that transmission is not influenced, meanwhile, thermal deformation caused during welding of the H-shaped steel can be corrected, friction scratch on a welding position in the clamping process can be avoided by arranging the chamfer 12543, welding quality is influenced, a gradually expanding opening formed by the first guide protrusion 1243 and the second guide protrusion 1255 can guide a wing plate to enter a wing plate clamping area more smoothly, influence of position deviation on transmission is reduced, automatic rotation of the clamping and rotating mechanism 12 can be realized by the rotary driving mechanism 14, labor intensity of workers is reduced, the axial deviation of the clamping and rotating mechanism 12 can be avoided by the conical carrier roller mechanism 141, and equipment stability is improved.

Example 4

With reference to fig. 8 to 13, the embodiment provides a lifting driving mechanism 13 for driving the lifting platform 11 of the turnover mechanism 1 in embodiments 2 and 3 to lift synchronously, and the specific technical solution is as follows, the lifting driving mechanism 13 includes a base 131, the base 131 is provided with a driving box 132 and four symmetrically arranged lifting support rods 134, two of the lifting support rods 134 are fixed on the lower end surface of one lifting platform 11, a driving assembly 133 is arranged in the driving box 132, and the driving assembly 133 drives the lifting support rods 134 to lift synchronously.

Referring to fig. 8, the driving assembly 133 includes two first rotating shafts 1331 symmetrically disposed, the first rotating shafts 1331 are rotatably fixed in the driving box 132 through fixing seats 1336, first bevel gears 1332 are respectively fixed at two ends of the first rotating shafts 1331, one of the first bevel gears 1332 is engaged with a second bevel gear 1333, the other first bevel gear 1332 is engaged with two third bevel gears 1334 symmetrically disposed, a third servo motor 135 fixed on the driving box 132 drives the second bevel gear 1333 to rotate, a second rotating shaft 1335 rotatably penetrating through a side wall of the driving box 132 is fixedly connected to the third bevel gear 1334, and the second rotating shaft 1335 rotatably drives the lifting support rod 134 to vertically lift.

Referring to fig. 9 to 12, the lifting pole 134 includes a cylindrical pole seat 1341 fixed on the base 131, the pole seat 1341 has a first shaft hole 13411 on the side wall and a second shaft hole 13412 at the top center, the free end of the second rotating shaft 1335 is rotatably inserted into the pole seat 1341 through the first shaft hole 13411 and is fixedly connected to a fourth bevel gear 1342,

an inner cylinder 1347 is fixedly arranged on the upper end face of the strut seat 1341, two axial long through holes 13471 are symmetrically arranged on the side wall of the inner cylinder 1347, an annular groove 13472 is arranged on the inner ring wall, the annular groove 13472 is arranged above the axial long through hole 13471,

the outer cylinder 1348 is slidably sleeved outside the inner cylinder 1347,

a spline sleeve 1343 with an open top end is rotatably disposed in the inner cylinder 1347, a third rotating shaft 13431 is fixedly disposed on a lower end surface of the spline sleeve 1343, the third rotating shaft 13431 passes through the second shaft hole 13412 and is rotatably fixed at the bottom of the strut seat 1341, a fifth bevel gear 1344 meshed with the fourth bevel gear 1342 is fixedly disposed on the third rotating shaft 13431, a lifting shaft 1345 is sealingly and slidably disposed in the spline sleeve 1343 and sequentially comprises a spline portion 13451, a connecting portion 13452 and a threaded portion 13453 from bottom to top, two horizontal connecting rods 13454 are symmetrically disposed on the connecting portion 13452, the connecting rods 13454 pass through the axial long through hole 13471 and are fixedly connected to the outer cylinder 1348, an internal threaded ring 1346 is disposed on the threaded portion 13453, the internal threaded ring 1346 is partially embedded in the annular groove 13472 and comprises a first half ring 13461 and a second half ring 13462 which are detachably connected, and an insertion shaft 13464 is disposed at a cross section of the first half ring 13461, the second half ring 13462 is provided with a corresponding insertion hole 13465 at a cross section, and the first half ring 13461 and the second half ring 13462 are respectively provided with a two-way memory spring 13463 at the center of the outer ring surface, wherein the two-way memory spring 13463 is fixed in the annular groove 13472 and externally connected with a power line.

The extension and contraction temperature of the two-way memory spring 13463 is preferably 65 ℃ to 85 ℃, and the two-way memory spring is in a contraction state at high temperature and in an extension state at normal temperature. The electric heating can cause the two-way memory spring 13463 to deform and contract instantly, so that the lifting shaft 1345 is released, and the free falling of the lifting shaft 1345 can be realized only by briefly introducing current.

The working process of the embodiment is as follows: when lifting is needed, the third servo motor 135 drives the second bevel gear 1333 to rotate, the second bevel gear 1333 drives the two first bevel gears 1332 and the two first rotating shafts 1331 engaged with the second bevel gears 1333 to rotate, the first bevel gears 1332 at the other ends of the two first rotating shafts 1331 respectively drive the two third bevel gears 1334 engaged with the second bevel gears 1333 to rotate, the four third bevel gears 1334 drive the four second rotating shafts 1335 to synchronously rotate, the second rotating shaft 1335 drives the fifth bevel gear 1344 to rotate through the fourth bevel gear 1342, the fifth bevel gear 1344 drives the third rotating shaft 13431 and the spline housing 1343 to rotate, the spline housing 1343 drives the lifting shaft 1345 to rotate, the thread part 13453 of the lifting shaft 1345 axially moves upwards when rotating in the internal thread ring 1346, drives the external cylinder 1348 fixedly connected with the lifting shaft to lift the lifting table 11, when resetting is needed, current is introduced into the two-way memory spring 13463 to perform electric heating, the two-way memory spring 13463 retracts after being heated, the internal thread ring 1346 is detached, the lifting shaft 1345 is released, the lifting shaft 1345 freely falls back to the initial position, the outer cylinder 1348 is driven to reset simultaneously, the electric heating is stopped after the outer cylinder 1348 resets, the initial extension state is recovered after the two-way memory spring 13463 is cooled, and the internal thread ring 1346 is made to combine to clasp the thread part 13453 of the lifting shaft 1345 again.

The driving assembly 133 in this embodiment can drive the lifting support rod 134 to lift synchronously, and is particularly suitable for the clamping and rotating mechanism 12 capable of performing rolling clamping in embodiment 3, because the clamping and rotating mechanism 12 performing rolling clamping is not locked along the conveying direction, if the lifting heights of the two lifting tables 11 are not consistent, the H-shaped steel is easily slipped to the lower position, which affects the process stability. The section of the first half ring 13461 of the internal thread ring 1346 is provided with an insertion shaft 13464, and the section of the second half ring 13462 is provided with a corresponding insertion hole 13465, so that the consistency of the internal thread connection of the internal thread ring 1346 can be ensured in the process of splitting and combining. Lifting support rod 134 is lifted through drive assembly 133, and through freely falling back and resetting, the resetting efficiency is improved and the energy consumption is reduced.

Referring to fig. 12 and 13, a multi-stage air passage 13455 is axially disposed inside the lifting shaft 1345, the multi-stage air passage 13455 includes a plurality of axially equidistantly disposed cylindrical air chambers 13456, a first air hole 13457 and a plurality of second air holes 13458 are alternately disposed between two adjacent cylindrical air chambers 13456, the first air hole 13457 is disposed at the center of one end surface of the cylindrical air chamber 13456, the plurality of second air holes 13458 are circumferentially equidistantly disposed on the other end surface of the cylindrical air chamber 13456, and when the lifting shaft 1345 moves upwards, an air storage cavity 13459 is formed between the lifting shaft 1345 and the spline housing 1343. The multistage air passage 13455 can form an air buffer structure, when the lifting shaft 1345 moves upwards, air enters the air storage cavity 13459 from the outside through the multistage air passage 13455, because the lifting shaft 1345 slides in the spline housing 1343 in a sealing manner, the air in the air storage cavity 13459 can only communicate with the outside through the multistage air passage 13455, when the lifting shaft 1345 falls freely, the volume of the air storage cavity 13459 is reduced, the air circulates to the outside through the multistage air passage 13455, because of the special structure of the multistage air passage 13455, the air receives large resistance during circulation, the resistance can reduce the falling speed of the lifting shaft 1345, so that the lifting shaft 1345 can be slowly fallen and reset, the impact on the spline housing 1343 is reduced, and the service life and the process stability of the equipment are prolonged.

In order to further realize automatic control, the automatic assembling equipment, the automatic welding equipment, the automatic input roller way, the automatic output roller way, the infrared sensor in the turnover equipment, the automatic conveying roller way group 2, the first servo motor 12522, the second servo motor 143, the third servo motor 135, the power switch connected with a power line and the like are all connected with the PLC.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.

Claims

1. The H-shaped steel welding process is characterized by comprising the following steps of:

step S4, the H-shaped steel after double-side welding enters the automatic input roller way again, the automatic input roller way is switched to reverse conveying, the H-shaped steel is conveyed to the automatic output roller way and is output to the detection station through the output roller way;

tipping arrangement includes tilting mechanism (1) and automatic rollgang group (2), tilting mechanism (1) includes two elevating platform (11) that set up along the direction of delivery interval, two be equipped with centre gripping rotary mechanism (12) on elevating platform (11) respectively, automatic rollgang group (2) are including first roll table (21), second roll table (22) and third roll table (23), first roll table (21) are located the one end and the butt joint automatic weld equipment of tilting mechanism (1), butt joint department is equipped with infrared sensor, third roll table (23) are located the other end of tilting mechanism (1), two are located second roll table (22) between elevating platform (11).

2. The welding process of the H-shaped steel according to claim 1, characterized in that the clamping and rotating mechanism (12) comprises a rotating drum (121) with two open ends, gear teeth (1211) are circumferentially arranged at the center of the outer circumferential wall of the rotating drum (121), conical inclined surfaces (1212) are arranged on two sides of the gear teeth (1211) in a tapered manner, two symmetrical first telescopic rods (122) are horizontally arranged on the inner circumferential wall of the rotating drum (121), two symmetrical second telescopic rods (123) are vertically arranged, the free end of the first telescopic rod (122) is connected with the first clamping mechanism (124), and the free end of the second telescopic rod (123) is connected with the second clamping mechanism (125).

3. The H-shaped steel welding process according to claim 2, characterized in that the first clamping mechanism (124) comprises a first clamping plate (1241) which is vertically arranged, the inner end surface of the first clamping plate (1241) is provided with a first driven row roller (1242) which can rotate along the conveying direction, the second clamping mechanism (125) comprises a second clamping plate (1251) which is horizontally arranged, a driving roller seat (1252) is arranged at the center above the second clamping plate (1251), the upper end surface of the driving roller seat (1252) is provided with a driving row roller (12521) which can rotate along the conveying direction and a first servo motor (12522) which drives the driving row roller (12521) to rotate, the two side walls of the driving roller seat (1252) which are parallel to the conveying direction are symmetrically provided with third telescopic rods (1253), the free ends of the third telescopic rods (1253) are connected with a third clamping plate (1254), the third clamping plate (1254) can slide relative to the second clamping plate (1251), a second driven row roller (12541) is arranged on the outer side wall of the third clamping plate, a third driven row roller (12542) is arranged on the upper end face of the third clamping plate, and a chamfer (12543) is formed in the position, facing the welding position, of the third clamping plate (1254).

4. A welding process of H-shaped steel according to claim 3, characterized in that the turnover mechanism (1) further comprises a rotary driving mechanism (14) for driving the clamping and rotating mechanism (12) to rotate, the rotary driving mechanism (14) comprises conical carrier roller mechanisms (141) which are symmetrically arranged on the upper end surface of the lifting platform (11), and a driving gear (142) arranged between the two conical roller mechanisms (141), a second servo motor (143) drives the driving gear (142) to rotate, the conical carrier roller mechanism (141) comprises two hinged seats (1411) fixedly arranged on the upper end surface of the lifting platform (11), a roller shaft (1412) is rotatably connected between the two hinged seats (1411), a driven gear (1413) is arranged in the center of the roll shaft (1412), and conical carrier rollers (1414) corresponding to the conical inclined surfaces (1212) of the rotating drum (121) are symmetrically arranged on two sides of the driven gear (1413).

5. The H-shaped steel welding process according to claim 1, characterized in that the turnover mechanism (1) further comprises a lifting driving mechanism (13) for driving the lifting platform (11) to lift, the lifting driving mechanism (13) comprises a base (131), a driving box (132) and four symmetrically arranged lifting support rods (134) are arranged on the base (131), two lifting support rods (134) are fixed on the lower end face of one lifting platform (11), a driving assembly (133) is arranged in the driving box (132), and the driving assembly (133) drives the lifting support rods (134) to lift synchronously.

6. A welding process of H-shaped steel according to claim 5, characterized in that said driving assembly (133) comprises two first rotating shafts (1331) symmetrically arranged, the first rotating shaft (1331) is rotatably fixed in the driving box (132) through a fixing seat (1336), two ends of the first rotating shaft (1331) are respectively fixedly provided with a first bevel gear (1332), one first bevel gear (1332) is meshed with a second bevel gear (1333), the other first bevel gear (1332) is meshed with two third bevel gears (1334) which are symmetrically arranged, a third servo motor (135) fixed on the driving box (132) drives the second bevel gear (1333) to rotate, a second rotating shaft (1335) which rotatably penetrates through the side wall of the driving box (132) is fixedly connected with the third bevel gear (1334), the second rotating shaft (1335) drives the lifting support rod (134) to vertically lift.

7. The H-shaped steel welding process according to claim 6, characterized in that the lifting support rod (134) comprises a support rod seat (1341) fixed on the base (131), and the second rotating shaft (1335) is rotatably inserted into the support rod seat (1341) and is fixedly connected with a fourth bevel gear (1342); the inner cylinder (1347) is fixedly arranged on the upper end face of the support rod seat (1341), an annular groove (13472) is formed in the inner annular wall of the inner cylinder, an internal thread ring (1346) is arranged in the annular groove (13472), and two axial long through holes (13471) are symmetrically formed in the side wall of the inner cylinder (1347) below the annular groove (13472); the spline sleeve (1343) with an open top end is rotatably arranged in the inner cylinder (1347), the spline sleeve (1343) is rotatably fixed at the bottom of the support rod seat (1341) through a third rotating shaft (13431), a fifth bevel gear (1344) meshed with the fourth bevel gear (1342) is arranged on the third rotating shaft (13431), a lifting shaft (1345) is arranged in the spline sleeve (1343) in a sealing and sliding manner and sequentially comprises a spline part (13451), a connecting part (13452) and a threaded part (13453) from bottom to top, two horizontal connecting rods (13454) are symmetrically arranged on the connecting part (13452), the connecting rods (13454) penetrate through the axial long through hole (13471) and then are fixedly connected with an outer cylinder (1348) which is slidably sleeved outside the inner cylinder (1347), and the threaded part (13453) is in threaded connection with the inner threaded ring (1346).

8. The H-shaped steel welding process according to claim 7, wherein the internally threaded ring (1346) comprises a first half ring (13461) and a second half ring (13462) which are detachably connected, a two-way memory spring (13463) is respectively arranged at the center of the outer annular surface of the first half ring (13461) and the second half ring (13462), the two-way memory spring (13463) is fixed in the annular groove (13472) and externally connected with a power line, is in an extended state at room temperature and enters a contracted state after being electrically heated.

9. The H-shaped steel welding process according to claim 8, characterized in that a multi-stage air passage (13455) is axially arranged inside the lifting shaft (1345), the multi-stage air passage (13455) comprises a plurality of cylindrical air chambers (13456) which are axially arranged at equal intervals, a first air hole (13457) and a plurality of second air holes (13458) which are communicated with the adjacent two cylindrical air chambers (13456) are alternately arranged between the adjacent two cylindrical air chambers (13456), the first air hole (13457) is arranged at the center of one end face of the cylindrical air chamber (13456), the plurality of second air holes (13458) are circumferentially arranged at equal intervals on the other end face of the cylindrical air chamber (13456), and when the lifting shaft (1345) moves upwards, an air storage cavity (13459) is formed between the lifting shaft (1345) and the spline housing (1343).