CN107088696A - A kind of roll repair welding built-up welder - Google Patents

Abstract

The invention discloses a kind of roll repair welding built-up welder, aim to provide a kind of metal welding field plant equipment, it is of the invention to there is weld preheating, automatic surfacing, except weldering cigarette and cleaning of surfaces to be welded function, and there is the characteristics of quickly adjusting built-up welding station and big built-up welding workpiece size extended capability；The present invention is provided with foundation base, headstock, six dog chucks, tailstock centre device and equipment, in technical solution of the present invention, equipment is using single stand column and beam structure, and be integrated into by built-up welding, preheating, except weldering cigarette, cleaning of surfaces to be welded function on job head, it is allowed to compact conformation, energy-conserving and environment-protective；Clamping is carried out to repaired roller using six dog chucks and tailstock centre device, clamping is allowed to quick, reliable；The present invention is simple in construction, easy to manufacture, easy to maintenance.

Description

A kind of roll repair welding built-up welder

Technical field

The invention of this reality is related to a kind of metal welding field plant equipment, more particularly to a kind of roll repair welding built-up welder.

Background technology

At present, the transfer roller installed in known roll built-up welding machine, the roll or rolling system that are rolling mill was being used The special welding equipment of built-up welding is carried out after being worn and torn in journey, mainly there are two kinds of structure types：Pendant pulley type and car-type, it is main to use In to roll progress automatical hidden arc overlay welding, it can also be used to the girth joint of rotary work piece, the welding of longitudinal seam automatic submerged-arc.Pendant coaster Formula is that by built-up welding work system pendant on main frame longitudinal rail, and car-type is that built-up welding work system is placed in into a chassis On, and walked on the track specially set for it.Side hanging built-up welder use monoblock type main machine structure, in layout with it is horizontal Lathe is similar, and the size of its built-up welding workpiece is limited by main frame physical dimension, it is difficult to be expanded, versatility is not strong；Car-type heap The work system of welding machine, work system is arranged on chassis, and chassis running gear uses split type with main frame, makes heap welder The size of part can obtain larger extension, but car-type has equipment occupation space greatly, and chassis walking precision is low and causes stabilising arc The defects such as scarce capacity.

The content of the invention

It is an object of the invention to provide a kind of roll repair welding built-up welder, the equipment has quick adjustment built-up welding station, built-up welding The characteristics of workpiece size extended capability is big, and with weld preheating, cleaning of surfaces to be welded and except weldering cigarette etc. is multi-functional.

The present invention is made up of foundation base, headstock, six dog chucks, tailstock centre device, equipment, headstock, tail The top, equipment of seat is arranged on foundation base, and six dog chucks are arranged on headstock；Wherein：Described equipment is It is made up of columns assemblies, transverse beam assembly, work head, transverse beam assembly is arranged in columns assemblies, work head is arranged on transverse beam assembly On；Described columns assemblies are determined by first bearing seat, vertical leading screw, second bearing seat, rebound, the first motor, column, two Pulley, two straight pins, pulley bracket, steel wire rope, lifting bolt, counterweight, the second motor, transition backing plate, first bearing seat, Nut seat, second bearing seat and leading screw composition；A vertical groove is provided with column, vertical groove upper surface is provided with a rectangle seam, Column end face center position is provided with a vertical manhole, top surface a joint hole group is provided with, in column outer side bottom surface It is provided with two rectangular guideways；Vertical leading screw is supported in the vertical groove of column by first bearing seat and second bearing seat, rebound It is connected in the rectangle seam of column, the first motor is connected on rebound, and couples with the realization of vertical leading screw；Two fixed pulleys lead to Two straight pins are crossed to be placed on pulley bracket；Lifting bolt is connected on counterweight, steel wire rope be connected with lifting bolt and around Cross two fixed pulleys；Pulley bracket is connected in the joint hole group of column；Nut seat is arranged on column bottom surface, and is formed with leading screw Screw pair；Described transverse beam assembly is by the 3rd motor, transition backing plate, horizontal screw lead, crossbeam, two bearing blocks, lifting bolts With screw composition；Crossbeam is in integrally " T " font, is provided with a rectangular horizontal groove and a vertical rectangular through-hole；Level silk Thick stick is by two bearing block supports in the rectangular horizontal groove of crossbeam, and transition backing plate is connected in rectangular horizontal groove end face；The Three motors are connected on transition backing plate, and are coupled with horizontal screw lead realization；Lifting bolt is connected on crossbeam；Screw is welded in horizontal stroke admittedly In the vertical rectangular through-hole of beam；Transverse beam assembly is placed on the column of columns assemblies by the vertical rectangular through-hole of crossbeam, crossbeam The vertical leading screw formation screw pair of screw and columns assemblies on component, the lifting bolt of transverse beam assembly and the steel wire rope of columns assemblies Realize connection；Described work head be by two pressing plates, weldering fume and dust device, welding wire support, wire reel, dust collector, adapter, Solder storage cylinder, Mobile base, burner, burner bearing, clamp nut, holding screw, clamping seat, the 4th motor, rebound, Two limit switches, leading screw, lance, hollow shaft, steel nail brush, vomit pipe, welding wire guide plate, welding wire conduit, pinch support, regulation spiral shells Nail, the 5th motor, passive pinch wheel, active pinch wheel, solder support and dedusting support composition；Mobile base is the square of side's opening Shape frame, is provided with top surface, internal chamber wall, internal chamber wall and is provided with a nut seat, and Mobile base bottom surface is provided with a rectangular boss, A hole system is provided with rectangular boss, a strip gap is provided with the bottom surface of rectangular boss；Burner monnolithic case It is L-shaped, formed by perpendicular section steel pipe and crosspiece steel-pipe welding, perpendicular section steel pipe one end is provided with joint, set on crosspiece steel pipe It is equipped with multiple burners；Two pressing plates are connected on Mobile base, and guide rail in rectangle is formed with the inner chamber of Mobile base；Weld fume and dust Device, welding wire support, solder support, dedusting support are connected on the top surface of Mobile base, and solder storage cylinder is placed in solder support On, wire reel is placed on welding wire support, and dust collector is connected on dedusting support；Dust collector is in a square horn knot Structure, is provided with tubaeform collecting hood and joint, and the joint of dust collector is connected by adapter with weldering fume and dust device；Burning Device bearing is connected on Mobile base side elevation, and clamping seat is connected on burner bearing by clamp nut, and burner passes through it The perpendicular section steel pipe of upper setting is placed on clamping seat, and is provided with holding screw it is fixed；Hollow shaft is consolidated with steel nail brush Connect together, internal thread is provided with hollow shaft, leading screw is placed in the internal thread of hollow shaft and forms screw pair, hollow shaft peace Put in the hole system of Mobile base, and through the strip gap of Mobile base, lance is connected in hollow shaft, hollow shaft is realized Circumferential registration, two limit switches are arranged on Mobile base, limit displacement of the lance along hollow shaft axis direction；Transition Plate is connected in the rectangular boss end face of Mobile base, and the 4th motor is connected on rebound, and couples with leading screw realization；Welding wire guide plate It is connected on Mobile base, several welding wire conduits is mounted with thereon；Pinch support to be connected on Mobile base, passive pinch wheel is placed in Pinch on support, passive pinch wheel can adjust in the position of short transverse by adjusting screw；5th motor is placed in pinch branch On frame, active pinch wheel is mounted with its overhanging shaft part.

Described foundation base is an overall " T " shape component；One end of the crosspiece of the "T"-shaped component is provided with two T-slot, the first rectangular recess is provided with the center of two T-slots, and two first are provided with the outside of two T-slots Rectangular guideway, two keyways and a joint hole group are provided with the other end of the crosspiece of the "T"-shaped component；In the "T"-shaped component Perpendicular section on be provided with two rectangular guideways, perpendicular section outer end is provided with a conjunction face, installed in the centre bit of two rectangular guideways It is equipped with the second rectangular recess.

The leading screw of equipment is supported on the second of foundation base by the first bearing seat and second bearing seat of equipment In rectangular recess；The transition backing plate of equipment is connected in the second electricity device of on conjunction face, arranging work thereon of foundation base Machine, the motor is realized with the leading screw of equipment to be coupled.

Described headstock is made up of motor, two bearings, spacer, round nut, spindle, two ring flanges and casing； Casing is box-type member, and its bottom surface is provided with two convex key and joint hole groups, and a rectangle is provided with casing upper one end face Boss, pass through aperture system is provided with the rectangular boss center；Spindle is the multi-diameter shaft that one end is provided with big disk, and its is another One end is provided with an endoporus, and spindle is supported in the through hole system of casing by two bearings set thereon, and passes through two Ring flange is connected on the through hole system outer face of casing, realizes the axial restraint of spindle, and spacer is arranged between two bearings； Motor is placed in the endoporus of spindle by the overhanging shaft part set thereon, and realization couples with spindle, and motor is connected in casing Rectangular boss on.

The two convex keys set on headstock are placed in two keyways of foundation base, and headstock passes through the handle that sets thereon Close hole group and the joint hole group realization of foundation base and being connected for foundation base.

Six described dog chucks are mainly by three centering jaws, three screw rods, three auxiliary claws, chuck body, three Individual baffle plate, support frame, three bevel gear shafts, bevel gear disk, clutch shaft bearing, spindle, second bearing, three pressing plates and end cap group Into.

Described chuck body is hollow rotary body, and its one end is provided with end plate, and the other end is provided with first conjunction Face and second conjunction face, are provided with an axial circular hole, three T-slot slide rails and three rectangular guideways are arranged in end plate central On end plate, and circular hole and semicircle orifice are respectively arranged with the two ends of each rectangular guideway in staggeredly circumference uniform distribution on end plate, Three radial direction circular holes are evenly distributed on chuck body external cylindrical surface；Described support frame is rotary body overall structure, by method Blue disk, bearing holder (housing, cover) and six webs connecting the two composition, be provided with bearing holder (housing, cover) circumference uniform distribution three radial direction circular holes, the One bearing hole and second bearing hole；Described bevel gear shaft two ends are provided with the first axle journal and the second axle journal, and interlude is set There is bevel gear, the spanner interface of square opening is provided with the second journal outer end face；Bevel gear disk is disc-shaped structure, its two ends Plane annular screw thread and cone tooth are respectively arranged with card.

Incomplete flat thread is provided with centering jaw, three centering jaws are respectively disposed on what is set in chuck body In three T-slot slide rails, and pass through the incomplete flat thread that sets thereon and the plane annular screw thread that is set on bevel gear disk Form screw pair；Screw rod is provided at both ends with the first axle journal and the second axle journal, and interlude is external screw thread, on the second journal outer end face It is provided with the spanner interface of four square holes；Auxiliary claw bottom surface is provided with half internal thread；The internal thread difference set on three screw rods With half female thread that sets on three auxiliary claws into screw pair；The first axle journal set on three screw rods is respectively disposed on card In three circular holes set on disk body, the second axle journal set on three screw rods is respectively disposed on three set in chuck body In individual semicircle orifice, and it is fixed respectively with three pressing plates；Spindle is arranged on bevel gear disk, and solid welded together with it, the One bearing and second bearing are arranged in spindle, and the assembly that spindle is formed together with bevel gear passes through clutch shaft bearing and second bearing It is supported in the first axle bearing bore and second bearing hole set on support frame, and axial restraint, support frame peace is realized by end cap Put and be connected on the first conjunction face set in chuck body；The first axle journal set on three bevel gear shafts is respectively disposed on In the three radial direction circular holes set on support frame, the second axle journal set on three bevel gear shafts is respectively disposed on three baffle plates In the endoporus of setting, three baffle plates are connected with the radial direction circular hole end face set in chuck body.

The big disk that six dog chucks are set by the second conjunction face of the chuck body set thereon and the spindle of headstock It is placed together and realizes connected with headstock.

Described tailstock centre device mainly by top, slide-bar, boring cover, foundation base, double-speed motor, lock pawl, rack, Dust proof tube, spacer flanger, blind flange, handwheel, two the first angular contact ball bearings, power transmission shaft, the first worm gear, the first worm screw, two Individual second angular contact ball bearing, gear, the second worm gear, screw putter, back-up ring, the first thrust bearing, the second thrust bearing, set Cylinder, countersunk head feather key, ring flange, two double-row self-aligning roller bearings, transparent cover, two the third angle contact ball bearings, the second worm screw, hooks Head feather key and straight pin composition.

Described slide-bar is an optical axis, and one end is provided with a counterbore, and the other end is provided with mohs tapered bore, middle periphery It is provided with keyway；Described foundation base is a block shape structure, and in its underpart, position is provided with the cross-shaped state in space rearward First hole system and the second hole system, the first rectangular guideway and the second rectangular guideway are provided with its bottom sides, is set at an upper portion thereof The 3rd hole system and the 4th hole system of the cross-shaped state in space are equipped with, ear mount is provided with facade after foundation base；Shown second Worm gear, its endoporus is provided with internal thread, and its one end is provided with outer face and inner stopper, and the other end is provided with axle journal；Described spiral shell Line push rod, its one end is provided with external screw thread shaft part, and keyway is provided with outer threaded shaft section, and the other end is provided with annular rib With an axle journal；Described sleeve is a hollow cylinder structure, is provided with counterbore, endoporus, end face shaft part；Set on lock pawl There is stop tooth, lock pawl is placed in the ear mount of foundation base by straight pin.

First worm screw is supported in the first hole system that foundation base is set by two the first angular contact ball bearings, in the first snail The overhanging shaft part of bar is realized with double-speed motor to be coupled, and double-speed motor is connected on foundation base；Power transmission shaft passes through two the second angular contacts Ball bearing be supported on foundation base setting the second hole system in, the first worm gear and gear are provided with the middle part of power transmission shaft, the two with Power transmission shaft is connected；First worm screw and the first worm gear formation worm couple, gear and rack formation rack-and-pinion.

First thrust bearing is placed on the axle journal of screw putter setting, in the counterbore for being placed in slide-bar setting, and back-up ring is made It is connected with the annular rib that screw putter is set, and with slide-bar, the axial direction for forming screw putter and slide-bar is connected；Slide-bar is pacified Put in the endoporus set in sleeve, countersunk head feather key is placed in the counterbore of sleeve setting, and the keyway formation set with slide-bar is slided It is secondary；Second worm gear is placed on the external screw thread shaft part that screw putter is set by the internal thread set thereon, forms screw pair, the The axle journal that two worm gears are set is placed in the endoporus of blind flange setting, and the inner stopper that the second thrust bearing and the second worm gear are set is put In on the end face shaft part that sleeve is set, and the outer face of inner stopper is placed in the second thrust bearing end face；Sleeve passes through two biserials Aligning roller bearing is supported in the 4th hole system of foundation base setting；Blind flange and ring flange are respectively fixedly connected the 4th of foundation base On two outer faces of hole system；Keyway is provided with spacer flanger, gib head feather key is mounted with thereon, the working face of gib head feather key is placed in In the keyway that screw putter is set, sliding pair is formed, spacer flanger is connected on blind flange；Dust proof tube is connected in spacer flanger On；It is top to be placed in the mohs tapered bore of slide-bar setting；Second worm screw is placed in foundation base by two the third angle contact ball bearings and set In the 3rd hole system put, and two outer faces of the 3rd hole system of foundation base are connected in by boring cover and transparent cover, realize the second worm screw Axial restraint；Second worm screw and the second worm gear formation worm couple；Spacer flanger is provided with keyway, is mounted with the keyway Gib head feather key, the working face of gib head feather key is placed in the keyway of screw putter setting.

The rack set on tailstock centre device is placed in the first rectangular recess of foundation base, and is connected with foundation base, The first rectangular guideway and the second rectangular guideway of the foundation base set on tailstock centre device are placed in two set on foundation base In individual first rectangular guideway, the stop tooth of the lock pawl set on tailstock centre device is engaged with rack formation.

The beneficial effects of the invention are as follows：

1. being clamped using six dog chucks to workpiece, its centering machine can realize the quick-clamping to axial workpiece, and it is aided in Clamp system can realize the reliable grip function to workpiece, and the clamping stress of single clamping point is small, and workpiece deformation is small；

2. the apex tailstock device used motor-driven quickly can be adjusted to station, installation process is efficient and convenient, and in the worm gear of setting Under the double action of worm gear pair and screw pair force-increasing mechanism, the labor intensity of operating personnel can be mitigated, by worm couple and Screw pair double locking, is locked firm during top work；

3. function is complete, automatic submerged-arc bead welding, preheating, dedusting, cleaning of surfaces to be welded function can be realized；

4. by built-up welding, preheating, except weldering cigarette, cleaning of surfaces to be welded function are integrated on work head, it is allowed to compact conformation, energy-saving ring Protect；

5. using single stand column and beam structure, main slide guide rail is above solder joint, beneficial to the protection and maintenance to equipment.

Brief description of the drawings

Fig. 1 is the schematic perspective view of the present invention.

Fig. 2 is the foundation base schematic perspective view of the present invention.

Fig. 3 is the headstock schematic perspective view of the present invention.

Fig. 4 is the six dog chuck schematic perspective views of the present invention.

Fig. 5 is the six dog chuck perspective exploded views of the present invention（One）.

Fig. 6 is the six dog chuck perspective exploded views of the present invention（Two）.

Fig. 7 is that schematic perspective view is regarded on front side of the tailstock centre of the present invention.

The tailstock centre that Fig. 8 is the present invention faces upward side perspective schematic diagram.

Fig. 9 is the tailstock centre perspective exploded view of the present invention.

Figure 10 is Fig. 7 A-A cutting schematic perspective views.

Figure 11 is the equipment schematic perspective view of the present invention.

Figure 12 is the columns assemblies perspective exploded view of the equipment of the present invention.

Figure 13 is the transverse beam assembly schematic perspective view of the equipment of the present invention.

Figure 14 is the work department schematic perspective view of the equipment of the present invention.

Figure 15 is the work department body portion decomposing schematic representation of the equipment of the present invention.

Embodiment

Embodiment 1：Refer to shown in Fig. 1, the present invention is by foundation base 1, headstock 2, six dog chucks 3, tailstock centre dress Put 4, equipment 5 to constitute, headstock 2, tailstock centre 4, equipment 5 are arranged on foundation base 1, six dog chucks 3 are set On headstock；Surfacing roll J1 is arranged between six dog chucks and tailstock centre device.

Refer to shown in Fig. 2, described foundation base 1 is an overall " T " shape component；In the crosspiece of the "T"-shaped component One end be provided with two T-slots 11, the first rectangular recess 12 is provided with the center of two T-slots 11, it is T-shaped at two The outside of groove 11 is provided with two the first rectangular guideways 13, and the other end of the crosspiece of the "T"-shaped component is provided with two keyways 17 and a joint hole group 18；Two rectangular guideways 14 are provided with the perpendicular section of the "T"-shaped component, perpendicular section outer end is provided with handle Conjunction face 16, the second rectangular recess 15 is provided with the center of two rectangular guideways 14.

Refer to shown in Fig. 3, described headstock 2 be by servomotor 21, two bearings 22, spacer 23, round nut 24, Spindle 25, two ring flanges 26 and casing 27 are constituted；Casing 27 is box-type member, and its bottom surface is provided with two convex keys 271 and handle Hole group 272 is closed, a rectangular boss 273 is provided with casing upper one end face, is provided with the center of rectangular boss 273 Pass through aperture system 274；Spindle 25 is the multi-diameter shaft that one end is provided with big disk 251, and its other end is provided with an endoporus 252, connect Axle 25 is supported in the through hole system 274 of casing 27 by two bearings 22 set thereon, and solid by two ring flanges 26 Be connected on the outer face of through hole system 274 of casing 27, realize the axial restraint of spindle 25, spacer 23 be arranged on two bearings it Between；Servomotor 21 is placed in the endoporus 252 of spindle 25 by the overhanging shaft part 211 set thereon, is realized and spindle 25 Connection, servomotor 21 is connected in the rectangular boss 273 of casing 27.

Refer to shown in Fig. 1, Fig. 2, Fig. 3, the convex key 271 of two set on headstock 2 is placed in two keys of foundation base 1 In groove 17, headstock 2 passes through the joint hole group 272 set thereon and the realization of joint hole group 18 of foundation base 1 and consolidating for foundation base 1 Even.

Refer to shown in Fig. 4 to Fig. 6, described six dog chucks 3 mainly by three centering jaws 31, three screw rods 32, Three auxiliary claws 33, chuck body 34, three baffle plates 35, support frame 36, three bevel gear shafts 37, bevel gear disks 38, first Bearing 39, spindle 310, second bearing 311, three pressing plates 312 and end cap 313 are constituted.

Described chuck body 34 is hollow rotary body, and its one end is provided with end plate 341, and the other end is provided with first Face 348 and second conjunction face 349 is closed, an axial circular hole 342, three Hes of T-slot slide rail 343 are provided centrally with end plate 341 Three rectangular guideways 344 are arranged on end plate 341, and in staggeredly circumference uniform distribution on end plate 341, in each rectangular guideway 344 two ends are respectively arranged with circular hole 345 and semicircle orifice 346, and three are evenly distributed on the external cylindrical surface of chuck body 34 Radial direction circular hole 347；Described support frame 36 is rotary body overall structure, by ring flange 361, bearing holder (housing, cover) 362 and connecting the two Six webs 363 are constituted, and three radial direction circular holes 3621, the first axle bearing bore 3622 of circumference uniform distribution are provided with bearing holder (housing, cover) 362 With second bearing hole 3623；The described two ends of bevel gear shaft 37 are provided with the first axle journal 371 and the second axle journal 373, interlude Bevel gear 372 is provided with, the spanner interface 374 of square opening is provided with the outer face of the second axle journal 373；Bevel gear disk 38 is circle Plane annular screw thread 381 and cone tooth 382 are respectively arranged with disk-shaped structure, its two ends card.

Incomplete flat thread 3101 is provided with centering jaw 31, three centering jaws 1 are respectively disposed on chuck body In the three T-slot slide rails 343 set on 34, and by the incomplete flat thread 3101 that sets thereon with bevel gear disk 38 The formation screw pair of plane annular screw thread 381 of setting；Screw rod 32 is provided at both ends with the first axle journal 321 and the second axle journal 322, middle Section is external screw thread 323, and the spanner interface 324 of four square holes is provided with the outer face of the second axle journal 322；Auxiliary claw 33 bottom surface is set It is equipped with half internal thread 331；The half interior spiral shell of the internal thread 323 set on three screw rods 32 respectively with being set on three auxiliary claws 33 The formation screw pair of line 331；The first axle journal 321 set on three screw rods 32 is respectively disposed on three set in chuck body 34 In circular hole 345, the second axle journal 322 set on three screw rods 32 is respectively disposed on three semicircle orifices set in chuck body 34 In 346, and it is fixed respectively with three pressing plates 312；Spindle 310 is arranged on bevel gear disk 38, and solid welded together with it, Clutch shaft bearing 39 and second bearing 311 are arranged in spindle 310, and the assembly that spindle 310 is formed together with bevel gear 38 is by One bearing 39 and second bearing 311 are supported in the first axle bearing bore 3622 and second bearing hole 3623 set on support frame 36, And axial restraint is realized by end cap 313, support frame 36 disposes and is connected in the first set in chuck body 34 to close face 348 On；The first axle journal 371 set on three bevel gear shafts 37 is respectively disposed on the three radial direction circular holes set on support frame 36 In 3621, the second axle journal 373 set on three bevel gear shafts 37 is respectively disposed on the endoporus 351 set on three baffle plates 35 Interior, three baffle plates 35 are connected with the end face of radial direction circular hole 347 set in chuck body 34.

Refer to shown in Fig. 1, Fig. 3, Fig. 4, Fig. 6, six dog chucks 3 pass through the second conjunction of the chuck body 34 set thereon The big disk 251 that the spindle 25 of face 349 and headstock 2 is set is placed together and realized connected with headstock 2.

Refer to shown in Fig. 7 to Figure 10, described tailstock centre device 4 mainly by top 41, slide-bar 42, boring cover 43, Foundation base 44, double-speed motor 45, lock pawl 46, rack 47, dust proof tube 48, spacer flanger 49, blind flange 410, handwheel 411, two Individual first angular contact ball bearing 412, power transmission shaft 413, the first worm gear 414, the first worm screw 415, two the second angular contact ball bearings 416th, gear 417, the second worm gear 418, screw putter 419, back-up ring 420, the first thrust bearing 421, the second thrust bearing 422, Sleeve 423, countersunk head feather key 424, ring flange 425, two double-row self-aligning roller bearings 426, transparent cover 427, two the third angle contacts Ball bearing 428, the second worm screw 429, gib head feather key 430 and straight pin 431 are constituted.

Described slide-bar 42 is an optical axis, and one end is provided with a counterbore 4201, and the other end is provided with mohs tapered bore 4203, in Between be provided with keyway 4202 on periphery；Described foundation base 44 is a block shape structure, and in its underpart, position is provided with rearward First hole of the cross-shaped state in space be 441 and second hole be 442, the first rectangular guideway 443 is provided with its bottom sides With the second rectangular guideway 444, the 3rd hole that the cross-shaped state in space is provided with an upper portion thereof be 445 and the 4th hole be 446, in base After plinth seat 44 ear mount 447 is provided with facade；The second shown worm gear 418, its endoporus is provided with internal thread 4181, and its one end is set Outer face 4182 and inner stopper 4184 are equipped with, the other end is provided with axle journal 4183；Described screw putter 419, its one end is set There is external screw thread shaft part 4192, keyway 4191 is provided with outer threaded shaft section 4192, the other end is provided with annular rib 4193 With an axle journal 4194；Described sleeve 423 is a hollow cylinder structure, is provided with counterbore 4231, endoporus 4233, end face axle Section 4232；Stop tooth 461 is provided with lock pawl 46, lock pawl 46 is placed in the ear mount 447 of foundation base 44 by straight pin 431 On.

The first hole that first worm screw 415 is supported on the setting of foundation base 44 by two the first angular contact ball bearings 412 is 441 It is interior, realize and couple with double-speed motor 45 in the overhanging shaft part of the first worm screw 415, double-speed motor 45 is connected on foundation base 44；Transmission The second hole that axle 413 is supported on the setting of foundation base 44 by two the second angular contact ball bearings 416 is in 442, in power transmission shaft 413 Middle part be provided with the first worm gear 414 and gear 417, the two is connected with power transmission shaft 413；First worm screw 415 and the first worm gear 414 Form worm couple, gear 417 and the formation rack-and-pinion of rack 47.

First thrust bearing 421 is placed on the axle journal 4194 of the setting of screw putter 419, is placed in the heavy of the setting of slide-bar 42 In hole 4201, back-up ring 420 is acted on the annular rib 4193 of the setting of screw putter 419, and is connected with slide-bar 42, forms screw thread The axial direction of push rod 419 and slide-bar 42 is connected；Slide-bar 42 is placed in the endoporus 4233 of the setting of sleeve 423, and countersunk head feather key 424 is placed in In the counterbore 4231 that sleeve 423 is set, and the formation sliding pair of keyway 4202 set with slide-bar 42；Second worm gear 418 passes through it The internal thread 4181 of upper setting is placed on the external screw thread shaft part 4192 of the setting of screw putter 419, forms screw pair, the second worm gear 418 axle journals 4184 set are placed in the endoporus 4101 of the setting of blind flange 410, and the second thrust bearing 422 and the second worm gear 418 are set The inner stopper 4184 put is placed on the end face shaft part 4232 of the setting of sleeve 423, and the outer face 4183 of inner stopper 4184 is placed in The end face of second thrust bearing 422；Sleeve 423 is supported on foundation base 44 is set the by two double-row self-aligning roller bearings 426 Four holes are in 446；It is on 446 two outer faces that blind flange 410 and ring flange 425, which are respectively fixedly connected in the 4th hole of foundation base 44,； Keyway 491 is provided with spacer flanger 49, gib head feather key 430 is mounted with thereon, the working face of gib head feather key 430 is placed in screw thread and pushed away In the keyway 4191 that bar 419 is set, sliding pair is formed, spacer flanger 49 is connected on blind flange 410；During dust proof tube 48 is connected in Between on flange 49；Top 41 are placed in the mohs tapered bore 4203 of the setting of slide-bar 42；Second worm screw 429 is contacted by two the third angles The 3rd hole that ball bearing 428 is placed in the setting of foundation base 44 is in 445, and is connected in foundation base 44 by boring cover 43 and transparent cover 427 The 3rd hole be 445 two outer faces, realize the axial restraint of the second worm screw 429；Second worm screw 429 and the shape of the second worm gear 418 Into worm couple；Spacer flanger 49 is provided with keyway 491, and gib head feather key 430 is mounted with the keyway, gib head feather key 430 Working face is placed in the keyway 4191 of the setting of screw putter 419.

Refer to shown in Fig. 1, Fig. 2, Fig. 7, Fig. 8, the rack 47 set on tailstock centre device 4 is placed in foundation base 1 In first rectangular recess 12, and it is connected with foundation base 1, the first rectangular guideway of the foundation base 44 set on tailstock centre device 4 443 and second rectangular guideway 444 be placed in two the first rectangular guideways 13 set on foundation base 1, on tailstock centre device 4 The stop tooth 461 of the lock pawl 46 of setting is engaged with the formation of rack 47.

Refer to shown in Figure 11 to Figure 15, described equipment 5 is by columns assemblies 51, transverse beam assembly 52, work head 53 compositions, transverse beam assembly 52 is arranged in columns assemblies 51, and work first 53 is arranged on transverse beam assembly 52.

Described columns assemblies 51 be by first bearing seat 511, vertical leading screw 512, second bearing seat 513, rebound 514, First motor 515, column 516, two fixed pulleys 517, two straight pins 518, pulley bracket 519, steel wire rope 5110, suspension ring spiral shells Nail 5111, counterweight 5112, the second motor 5113, transition backing plate 5114, first bearing seat 5115, nut seat 5116, the second axle Bearing 5117 and leading screw 5118 are constituted；A vertical groove 5161 is provided with column 516, the vertical upper surface of groove 5161 is provided with a rectangle Seam 5162, is provided with a vertical manhole 5163 in the end face center position of column 516, top surface is provided with a joint hole group 5164, column outer side bottom surface is provided with two rectangular guideways 5165；Vertical leading screw 512 passes through the axle of first bearing seat 511 and second Bearing 513 is supported in the vertical groove 5161 of column 516, and rebound 514 is connected in the rectangle seam 5162 of column 516, and first Motor 515 is connected on rebound 514, and is coupled with the realization of vertical leading screw 512；Two fixed pulleys 517 pass through two straight pins 518 It is placed on pulley bracket 519；Lifting bolt 5111 is connected on counterweight 5112, and steel wire rope 5110 connects with lifting bolt 5111 Connect and bypass two fixed pulleys 517；Pulley bracket 519 is connected in the joint hole group 5164 of column 516；Nut seat 5116 is set Screw pair is formed in the bottom surface of column 516, and with leading screw 5118.

Described transverse beam assembly 52 be by the 3rd motor 521, transition backing plate 522, horizontal screw lead 523, crossbeam 524, two Bearing block 525, lifting bolt 526 and screw 527 are constituted；Overall crossbeam 524 is in " T " font, is provided with a rectangular horizontal The vertical rectangular through-hole 5242 of groove 5241 and one；Horizontal screw lead 523 is supported on the rectangle of crossbeam 524 by two bearing blocks 525 In horizontal groove 5241, transition backing plate 522 is connected in the end face of rectangular horizontal groove 5241；3rd motor 521 is connected in transition pad On plate 522, and couple with the realization of horizontal screw lead 523；Lifting bolt 526 is connected on crossbeam 524；Screw 527 is welded in crossbeam admittedly In 524 vertical rectangular through-hole；Transverse beam assembly 52 is placed in columns assemblies 51 by the vertical rectangular through-hole 5242 of crossbeam 524 On column 516, screw 527 and the formation screw pair of vertical leading screw 512 of columns assemblies 51 on transverse beam assembly 52, transverse beam assembly 52 Lifting bolt 526 is realized with the steel wire rope 5110 of columns assemblies 51 and is connected.

Described work first 53 is by two pressing plates 531, weldering fume and dust device 532, welding wire support 533, wire reel 534, powder Dirt collector 535, adapter 536, solder storage cylinder 537, Mobile base 538, burner 539, burner bearing 5310, clamp nut 5311st, holding screw 5312, the 5313, the 4th motor 5314 of clamping seat, rebound 5315, two limit switches 5316, leading screws 5317th, lance 5318, hollow shaft 5319, steel nail brush 5320, vomit pipe 5321, welding wire guide plate 5322, welding wire conduit 5323, pinch Support 5324, adjusting screw 5325, the 5th motor 5326, passive pinch wheel 5327, active pinch wheel 5328, solder support 5329 Constituted with dedusting support 5330；Mobile base 538 is the rectangle frame of side's opening, is provided with top surface 5381, internal chamber wall 5382, A nut seat 5383 is provided with internal chamber wall 5382, the bottom surface of Mobile base 538 is provided with a rectangular boss 5384, in rectangular boss It is 5385 that a hole is provided with 5384, and a strip gap 5386 is provided with the bottom surface of rectangular boss 5384；Burner 539 Monnolithic case is L-shaped, is welded, is set in perpendicular one end of section steel pipe 5392 by perpendicular section steel pipe 55392 and crosspiece steel pipe 5393 There is joint 5391, multiple burners 5394 are provided with crosspiece steel pipe 5393；Two pressing plates 531 are connected on Mobile base 538, Guide rail in rectangle is formed with the inner chamber of Mobile base 538；Weld fume and dust device 532, welding wire support 533, solder support 5329, dedusting branch Frame 5330 is connected on the top surface 5381 of Mobile base 538, and solder storage cylinder 537 is placed on solder support 5329, wire reel 534 are placed on welding wire support 533, and dust collector 535 is connected on dedusting support 5330；Dust collector 535 is in a side Shape horn structure, is provided with tubaeform collecting hood 5351 and joint 5352, the joint 5352 of dust collector 535 is by connecing Pipe 536 is connected with weldering fume and dust device 532；Burner bearing 5310 is connected on the side elevation of Mobile base 538, and clamping seat 5313 passes through Clamp nut 5311 is connected on burner bearing 5310, and burner 539 is placed in by the perpendicular section steel pipe 5392 set thereon On clamping seat 5313, and it is provided with holding screw 5312 it is fixed；Hollow shaft 5319 is connected in one with steel nail brush 5320 Rise, internal thread 53191 is provided with hollow shaft 5319, leading screw 5317 is placed in the internal thread 53191 of hollow shaft 5319 and shape Into screw pair, the hole that hollow shaft 5319 is placed in Mobile base 538 is in 5385, and through the strip gap of Mobile base 538 5386, lance 5318 is connected in hollow shaft 5319, the circumferential registration of hollow shaft 5319 is realized, two limit switches 5316 are set Put on Mobile base 538, limit displacement of the lance 5318 along the axis direction of hollow shaft 5319；Rebound 5315 is connected in The end face of rectangular boss 5384 of Mobile base 538, the 4th motor 5314 is connected on rebound 5315, and realizes connection with leading screw 5317 Connect；Welding wire guide plate 5322 is connected on Mobile base 538, and several welding wire conduits 5323 are mounted with thereon；Support 5324 is pinched to be connected On Mobile base 538, passive pinch wheel 5327 is placed on pinch support 5324, passes through the adjustable passive folder of adjusting screw 5325 Wheel 5327 is sent in the position of short transverse；5th motor 5326 is placed on pinch support 5324, is mounted with its overhanging shaft part Active pinch wheel 5328.

Refer to shown in Fig. 1, Fig. 2, Figure 11, Figure 12, the first axle that the leading screw 5118 of equipment 5 passes through equipment 5 Bearing 5115 and second bearing seat 5117 are supported in the second rectangular recess 15 of foundation base 1；The transition backing plate of equipment 5 5114 are connected in the second motor 5113 device of on conjunction face 16, arranging work thereon of foundation base 1, the motor and equipment Leading screw 5118 realize connection.

The working process and principle of the present embodiment are as follows：

The present embodiment is made up of foundation base, headstock, six dog chucks, tailstock centre device, equipment, wherein headstock, Six dog chucks, tailstock centre device constitute the clamping device of workpiece, the clamping work of main responsible workpiece, it is desirable to registration, Reliable clamping, clamping are quick；Equipment mainly completes the built-up welding of workpiece, preheating, dedusting, cleaning of surfaces to be welded function.The head of a bed Case apparatus couples with six dog chucks, and provides power by one servomotor of setting for the rotary motion of roll.

Centering detent mechanism of six dog chucks using three jaw self-centering mechanisms as workpiece, in use, first by three supplementary cards Pawl and three centering jaws are retreated to correct position, workpiece are laid in three centering jaws, due to the cone set on bevel gear shaft Tooth meshes together with the cone tooth set on cone fluted disc, and by the spanner interface set on bevel gear shaft, bevel gear is turned by hand Axle, just can rotate with mantle fluted disc, and bore the flat thread set on fluted disc and set on three centering jaws it is not exclusively flat Face screw thread is respectively formed screw pair, when boring fluted disc rotation, and just driving three centering jaws, constant speed is equidistantly advanced simultaneously, realization pair The centering positioning and clamping of workpiece.And when unclamping workpiece, only need to reversely rotate spanner.To realize the reliable folder to workpiece Tightly, the clamping of aggrandizement apparatus and bearing capacity, after using three centering jaws to workpiece progress centering positioning and preliminary clamping, Auxiliary clamp can be carried out to workpiece by three auxiliary claws.This six dog chuck is additionally provided with three auxiliary claws, three auxiliary Half internal thread set on claw and the external screw thread set on three screw rods form screw pair respectively, when turning one of spiral shell When bar rotates, due to the screw rod axial restraint, one the be coupled advance or retrogressing for aiding in claw independence just can be driven, with Realize the clamping or release to workpiece.

Tailstock centre device is realized speed change by the first worm-gears and is changed transmission using a double-speed motor as power Direction, a gear coaxial with the first worm gear is transmitted to by motion, and the rack set on the gear and ground platform forms gear teeth Bar mechanism, because rack is fixed, just can realize the motion for spreading out of double-speed motor and power, drive whole apex tailstock device in-orbit Advance in road or retreat.In apex tailstock device after workpiece reaches proper operation position, lock pawl is engaged simultaneously with rack It is reversely close, then apex tailstock device is connected with ground platform, to prevent apex tailstock device from retreating.Using worm couple Top sinciput and backward movement are realized in synergy with screw pair, because worm couple and screw pair are respectively provided with reinforcement Function, can be achieved to mitigate the purpose of labor intensity of operating staff, worm couple and screw pair also have locking function in addition, can Realize reliable locking during top work.The mechanism is provided with handwheel, is inputted using manual operations as power, passes through the second worm gear snail Bar pair passes motion to the second worm gear, and because of the second worm gear axial restraint, the internal thread that its endoporus is set is set with screw putter External screw thread formation screw pair, and screw putter on the keyway that sets and the sliding pair of gib head taper stock key formation limit screw putter Rotation so that screw putter can only slide back and forth, therefore the power of handwheel input, can be achieved the movable of screw putter；Spiral shell Line push rod is supported in the hole set on slide-bar by the first thrust bearing, and by a back-up ring that screw putter and slide-bar is axial It is connected, when this make it that screw putter is moved forward and backward under handwheel effect, slide-bar is realized move forward and backward therewith；Slide-bar is placed in a set of In cylinder, the sleeve is supported on foundation base by two double-row self-aligning roller bearings, and slide-bar realizes circumference by feather key and sleeve It is connected, top to be arranged in the mohs tapered bore of slide-bar front end setting, therefore, when top top tight workpiece, slide-bar is together with sleeve meeting As workpiece rotates together；Due to being provided with the first thrust bearing between screw putter and slide-bar, set between sleeve and the second worm gear There is the second thrust bearing, slide-bar will not drive screw putter and the second worm gear to produce rotary motion together with the rotary motion of sleeve.

Built-up welding, preheating, dedusting, cleaning of surfaces to be welded function are integrated on work head by equipment, by working on head The motion of different functional units completes corresponding function.To realize built-up welding function, work head should be able to radially be adjusted along roll Whole motion and the wire feed motion along roll axially progress feed motion, and welding wire.The first motor is set to come for pad for this Power is provided in the position adjustment of roll radially, the first motor drives a vertical leading screw rotation, and thirty years of age of leading screw on crossbeam with setting Screw cooperatively form screw pair, crossbeam just can be driven to realize up and down motion when the first motor movement, and the head that works is arranged on On crossbeam, work head will realize oscilaltion campaign in company with crossbeam, to reach the height and position of adjustment pad, realize work Head is radially adjusted the function of moving along roll；By setting the second motor come the feed motion for pad along roll axial direction Power is provided, motion is transmitted to by the second motor by a horizontal screw lead and the screw pair of the screw being arranged on Mobile base formation Mobile base, realizes feed motion of the pad along roll axial direction；There is provided by setting the 4th motor for the motion of the wire feed of welding wire Power, the 4th motor will move the active pinch wheel for being transmitted to and being set on its shaft end, then pass through active pinch wheel and passive pinch wheel The pinch gap of formation, pinch campaign is carried out to welding wire.To realize to the preheating function before roll overlaying, a burning is provided with Device, burner erects external gas pipe on the joint that section steel pipe end is set, and coal gas is introduced into burner, passes through burner crosspiece steel The multiple burners set on pipe, produce flame and roll are preheated.Burner can adjust burned angle and burner distance The size of roll external cylindrical surface, by unclamping the clamp nut set on burner bearing, clamping seat can be real together with burner The revolution of holder center line is now installed around, so as to realize the adjustment of burner combustion angle, after being adjusted in place, clamp nut is tightened and enters Row is fixed；By unclamping holding screw, burner erects section steel pipe and can moved forward and backward in the mounting hole that clamping seat is set, so as to adjust Whole burner from roll external cylindrical surface with a distance from, tighten holding screw after being adjusted in place and be fixed.To realize equipment Dedusting function, is provided with dust collector, and dust collector is in a square horn structure, be provided with tubaeform collecting hood and Joint, the joint can be siphoned away the dust that weld zone is produced by the external dust catcher of flexible pipe, and dust collector volume is little, but On the Mobile base that work head is arranged on due to it, it can be moved with work head, therefore pick-up performance can be guaranteed.To realize this The cleaning of surfaces to be welded function of embodiment, is provided with a steel nail brush, and the steel nail brush can be realized relative to roll external cylindrical surface to advance And backward movement, therefore, being provided with the 3rd motor, the power produced by the 3rd motor drives the leading screw being coupled to rotate, Leading screw and hollow shaft formation screw pair, hollow shaft is under the limitation of lance, it is impossible to rotary motion, elastic can only move, and Steel nail brush is connected with hollow shaft, and elastic motion of the steel nail brush relative to roller surface can be realized by then passing through the 3rd motor. When roll is in welding job state, steel nail brush backs to extreme position, is not contacted with roller surface；When having welded a work Make after stroke, the welding slag of face of weld need to be cleared up, to improve welding quality, now, steel nail brush proceeds to suitable work Make position.Advance or retracted position for limitation steel nail brush, be provided with two limit switches, generation switch is functioned by lance Amount, realizes the break-make to the 3rd motor power.

The course of work of the present embodiment is as follows：

Job step 1：Workpiece is installed, and is started the motor of equipment second, equipment is backed to home, built-up welding is rolled Roller J1 is hoisted between six dog chucks and tailstock centre device, turns the self-centering claw of six dog chucks, is realized to surfacing roll J1 positioning and pre- clamping, start the motor that tailstock centre device is set, mobile tailstock centre close to workpiece, and by lock pawl with Rack correct engagement, manual pre- top tight workpiece, is then fastened on basis by tailstock centre device and takes, with centering jaw and auxiliary Jaws clamp, top top tight workpiece completes surfacing roll J1 installation；

Job step 2：Start the first motor and the 3rd motor set on equipment, the head that will work is adjusted to weld stroke The original position on the right, subsequent first motor and the 3rd motor stalling；Start dust catcher；

Job step 3：Point burner, starts the motor rotary roller set on headstock, carries out the pre-heat treatment to roll, so Striking and open welding agent powder switch afterwards, while start the 3rd motor and the 5th motor that set on equipment, carry out submerged arc from Dynamic welding.Preheating and the synchronous progress of welding, on locus, preheating position is before welding position；

Job step 4：Weld after an impulse stroke, the 3rd motor of equipment and the stalling of the 5th motor, burner put out Go out, start equipment the first motor and the 3rd motor, will work head be adjusted to correct position, then stall the first motor and 3rd motor；The motor of subsequent start-up the 4th, steel nail brush, which stretches out, is pressed on roll working surface；Roller rotational, starts the 3rd motor, Wire brush is driven axially to carry out feed motion along roll.Complete after cleaning of surfaces to be welded work, start the 4th motor, make wire brush Back to extreme position；

According to built-up welding thickness, above-mentioned job step 2-4 is repeated, whole built-up welding work just can be completed.

Claims (9)

1. a kind of roll repair welding built-up welder, it is characterised in that the built-up welder is by foundation base, headstock, six dog chucks, tailstock centre Device, equipment composition, headstock, tailstock centre, equipment are arranged on foundation base, and six dog chucks are arranged on the head of a bed On case；Equipment is made up of columns assemblies, transverse beam assembly, work head, and transverse beam assembly is arranged in columns assemblies, and work head It is arranged on transverse beam assembly；Wherein：

Columns assemblies be by first bearing seat, vertical leading screw, second bearing seat, rebound, the first motor, column, two fixed pulleys, Two straight pins, pulley bracket, steel wire rope, lifting bolt, counterweight, the second motor, transition backing plate, first bearing seat, screws Seat, second bearing seat and leading screw composition；A vertical groove is provided with column, vertical groove upper surface a rectangle seam is provided with, vertical Capital face center is provided with a vertical manhole, and top surface is provided with a joint hole group, is set in column outer side bottom surface There are two rectangular guideways；Vertical leading screw is supported in the vertical groove of column by first bearing seat and second bearing seat, and rebound is connected In the rectangle seam of column, the first motor is connected on rebound, and is coupled with the realization of vertical leading screw；Two fixed pulleys pass through two Individual straight pin is placed on pulley bracket；Lifting bolt is connected on counterweight, and steel wire rope is connected with lifting bolt and bypasses two Individual fixed pulley；Pulley bracket is connected in the joint hole group of column；Nut seat is arranged on column bottom surface, and forms spiral with leading screw It is secondary；

Transverse beam assembly is by the 3rd motor, transition backing plate, horizontal screw lead, crossbeam, two bearing blocks, lifting bolt and screw group Into；Crossbeam is in integrally " T " font, is provided with a rectangular horizontal groove and a vertical rectangular through-hole；Horizontal screw lead passes through two Individual bearing block support is in the rectangular horizontal groove of crossbeam, and transition backing plate is connected in rectangular horizontal groove end face；3rd motor is consolidated It is connected on transition backing plate, and couples with horizontal screw lead realization；Lifting bolt is connected on crossbeam；Screw is welded in the vertical of crossbeam admittedly In rectangular through-hole；Transverse beam assembly is placed on the column of columns assemblies by the vertical rectangular through-hole of crossbeam, on transverse beam assembly Screw and the vertical leading screw of columns assemblies formation screw pair, the lifting bolt of transverse beam assembly and the steel wire rope of columns assemblies are realized and connected Connect；

Work head be by two pressing plates, weldering fume and dust device, welding wire support, wire reel, dust collector, adapter, solder storage cylinder, Mobile base, burner, burner bearing, clamp nut, holding screw, clamping seat, the 4th motor, rebound, two spacing open Pass, leading screw, lance, hollow shaft, steel nail brush, vomit pipe, welding wire guide plate, welding wire conduit, pinch support, adjusting screw, the 5th electricity Machine, passive pinch wheel, active pinch wheel, solder support and dedusting support composition；Mobile base is the rectangle frame of side's opening, thereon It is provided with top surface, internal chamber wall, internal chamber wall and is provided with a nut seat, Mobile base bottom surface is provided with a rectangular boss, convex in rectangle A hole system is provided with platform, a strip gap is provided with the bottom surface of rectangular boss；Burner monnolithic case is L-shaped, Formed by perpendicular section steel pipe and crosspiece steel-pipe welding, perpendicular section steel pipe one end is provided with joint, is provided with crosspiece steel pipe multiple Burner；Two pressing plates are connected on Mobile base, and guide rail in rectangle is formed with the inner chamber of Mobile base；Weld fume and dust device, welding wire branch Frame, solder support, dedusting support are connected on the top surface of Mobile base, and solder storage cylinder is placed on solder support, wire reel It is placed on welding wire support, dust collector is connected on dedusting support；Dust collector is in a square horn structure, is set thereon Tubaeform collecting hood and joint are equipped with, the joint of dust collector is connected by adapter with weldering fume and dust device；Burner bearing is consolidated It is connected on Mobile base side elevation, clamping seat is connected on burner bearing by clamp nut, and burner by setting thereon Erect section steel pipe to be placed on clamping seat, and be provided with holding screw and it is fixed；Hollow shaft is fixed together with steel nail brush, Internal thread is provided with hollow shaft, leading screw is placed in the internal thread of hollow shaft and forms screw pair, and hollow shaft is placed in movement In the hole system of seat, and through the strip gap of Mobile base, lance is connected in hollow shaft, realizes that the circumference of hollow shaft is determined Position, two limit switches are arranged on Mobile base, limit displacement of the lance along hollow shaft axis direction；Rebound is connected In the rectangular boss end face of Mobile base, the 4th motor is connected on rebound, and is coupled with leading screw realization；Welding wire guide plate is connected in On Mobile base, several welding wire conduits are mounted with thereon；Pinch support to be connected on Mobile base, passive pinch wheel is placed in pinch branch On frame, passive pinch wheel can adjust in the position of short transverse by adjusting screw；5th motor is placed on pinch support, its Active pinch wheel is mounted with overhanging shaft part.

2. according to the roll repair welding built-up welder described in claim 1, it is characterised in that：Described foundation base is one overall in " T " The component of shape；Two T-slots are provided with one end of the crosspiece of the "T"-shaped component, are provided with the center of two T-slots First rectangular recess, is provided with two the first rectangular guideways on the outside of two T-slots, the "T"-shaped component crosspiece it is another One end is provided with two keyways and a joint hole group；Two rectangular guideways are provided with the perpendicular section of the "T"-shaped component, in perpendicular section Outer end is provided with a conjunction face, and the center of two rectangular guideways is provided with the second rectangular recess.

3. according to the roll repair welding built-up welder described in claim 1, it is characterised in that：The leading screw of equipment passes through equipment First bearing seat and second bearing seat be supported in the second rectangular recess of foundation base；The transition backing plate of equipment is connected in The second motor device of on conjunction face, arranging work thereon of foundation base, the motor is realized with the leading screw of equipment to be coupled.

4. according to the roll repair welding built-up welder described in claim 1, it is characterised in that：Described headstock be by motor, two Bearing, spacer, round nut, spindle, two ring flanges and casing composition；Casing is box-type member, its bottom surface be provided with two it is convex Key and joint hole group, a rectangular boss is provided with casing upper one end face, and the rectangular boss center is provided with one Through hole system；Spindle is the multi-diameter shaft that one end is provided with big disk, and its other end is provided with an endoporus, and spindle by setting thereon Two bearings be supported in the through hole system of casing, and be connected in by two ring flanges the through hole system outer face of casing On, the axial restraint of spindle is realized, spacer is arranged between two bearings；Motor is placed in by the overhanging shaft part set thereon In the endoporus of spindle, realization couples with spindle, and motor is connected in the rectangular boss of casing.

5. according to the roll repair welding built-up welder described in claim 4, it is characterised in that：The two convex key placements set on headstock In two keyways of foundation base, headstock is realized and basis by the joint hole group and the joint hole group of foundation base that set thereon Seat be connected.

6. according to the roll repair welding built-up welder described in claim 1, it is characterised in that：Six described dog chucks are by three centering Claw, three screw rods, three auxiliary claws, chuck body, three baffle plates, support frame, three bevel gear shafts, bevel gear disk, the One bearing, spindle, second bearing, three pressing plates and end cap composition；Described chuck body is hollow rotary body, and its one end is set End plate is equipped with, the other end is provided with the first and closes face and second conjunction face, end plate central is provided with an axial circular hole, three T-slot slide rail and three rectangular guideways are arranged on end plate, and in staggeredly circumference uniform distribution on end plate, in each rectangular guideway Two ends be respectively arranged with circular hole and semicircle orifice, three radial direction circular holes are evenly distributed on chuck body external cylindrical surface；Institute The support frame stated is rotary body overall structure, is made up of ring flange, bearing holder (housing, cover) and six webs connecting the two, on bearing holder (housing, cover) It is provided with three radial direction circular holes, first axle bearing bore and the second bearing hole of circumference uniform distribution；Described bevel gear shaft two ends are set There are the first axle journal and the second axle journal, interlude is provided with bevel gear, the spanner of square opening is provided with the second journal outer end face Interface；Bevel gear disk is that plane annular screw thread and cone tooth are respectively arranged with disc-shaped structure, its two ends card；On centering jaw Incomplete flat thread is provided with, three centering jaws are respectively disposed in the three T-slot slide rails set in chuck body, and Pass through the incomplete flat thread that sets thereon and the plane annular screw thread formation screw pair that is set on bevel gear disk；Screw rod two ends The first axle journal and the second axle journal are provided with, interlude is external screw thread, the spanner of four square holes is provided with the second journal outer end face Interface；Auxiliary claw bottom surface is provided with half internal thread；The internal thread set on three screw rods on three auxiliary claws respectively with setting Half female thread put is into screw pair；The first axle journal set on three screw rods is respectively disposed on three set in chuck body In circular hole, the second axle journal set on three screw rods is respectively disposed in three semicircle orifices set in chuck body, and uses three Individual pressing plate is fixed to it respectively；Spindle is arranged on bevel gear disk, and solid welded together with it, and clutch shaft bearing and second bearing are set Put in spindle, spindle is supported on support frame by clutch shaft bearing and second bearing together with the assembly that bevel gear is formed and set First axle bearing bore and second bearing hole in, and axial restraint is realized by end cap, support frame disposes and is connected in chuck body On the first conjunction face of upper setting；The first axle journal set on three bevel gear shafts is respectively disposed on three set on support frame In radial direction circular hole, the second axle journal set on three bevel gear shafts is respectively disposed in the endoporus set on three baffle plates, three Baffle plate is connected with the radial direction circular hole end face set in chuck body.

7. according to the roll repair welding built-up welder described in claim 6, it is characterised in that：Six dog chucks pass through the chuck that sets thereon The big disk that the second conjunction face of body and the spindle of headstock are set is placed together and realized connected with headstock.

8. according to the roll repair welding built-up welder described in claim 1, it is characterised in that：Described tailstock centre device mainly by Top, slide-bar, boring cover, foundation base, double-speed motor, lock pawl, rack, dust proof tube, spacer flanger, blind flange, handwheel, two One angular contact ball bearing, power transmission shaft, the first worm gear, the first worm screw, two the second angular contact ball bearings, gear, the second worm gear, spiral shells Line push rod, back-up ring, the first thrust bearing, the second thrust bearing, sleeve, countersunk head feather key, ring flange, two double-row self-aligning roller axles Hold, transparent cover, two the third angle contact ball bearings, the second worm screw, gib head feather key and straight pin composition；Described slide-bar is a light Axle, one end is provided with a counterbore, and the other end is provided with mohs tapered bore, middle periphery and is provided with keyway；Described foundation base For a block shape structure, in its underpart, position is provided with the first hole system and the second hole system of the cross-shaped state in space rearward, at it The first rectangular guideway and the second rectangular guideway are provided with bottom sides, the 3rd of the cross-shaped state in space is provided with an upper portion thereof Hole system and the 4th hole system, are provided with ear mount after foundation base on facade；The second described worm gear, its endoporus is provided with internal thread, Its one end is provided with outer face and inner stopper, and the other end is provided with axle journal；Described screw putter, its one end is provided with external screw thread Shaft part, keyway is provided with outer threaded shaft section, and the other end is provided with annular rib and an axle journal；Described sleeve be one in Empty tube structure, is provided with counterbore, endoporus, end face shaft part；Stop tooth is provided with lock pawl, lock pawl passes through straight pin It is placed in the ear mount of foundation base；First worm screw is supported on the first hole system that foundation base is set by two the first angular contact ball bearings It is interior, realize and couple with double-speed motor in the overhanging shaft part of the first worm screw, double-speed motor is connected on foundation base；Power transmission shaft passes through two Second angular contact ball bearing is supported in the second hole system of foundation base setting, and the first worm gear and tooth are provided with the middle part of power transmission shaft Wheel, the two is connected with power transmission shaft；First worm screw and the first worm gear formation worm couple, gear and rack formation rack-and-pinion It is secondary；First thrust bearing is placed on the axle journal of screw putter setting, and in the counterbore for being placed in slide-bar setting, back-up ring acts on spiral shell On the annular rib that line push rod is set, and it is connected with slide-bar, the axial direction for forming screw putter and slide-bar is connected；Slide-bar is placed in set In the endoporus that cylinder is set, countersunk head feather key is placed in the counterbore of sleeve setting, and the keyway formation sliding pair set with slide-bar；Second Worm gear is placed on the external screw thread shaft part that screw putter is set by the internal thread set thereon, forms screw pair, the second worm gear The axle journal of setting is placed in the endoporus of blind flange setting, and the inner stopper that the second thrust bearing and the second worm gear are set is placed in sleeve On the end face shaft part of setting, and the outer face of inner stopper is placed in the second thrust bearing end face；Sleeve passes through two double-row self-aligning rollers Sub- bearing is supported in the 4th hole system of foundation base setting；The 4th hole system in foundation base is respectively fixedly connected in blind flange and ring flange On two outer faces；Keyway is provided with spacer flanger, gib head feather key is mounted with thereon, the working face of gib head feather key is placed in screw thread and pushed away In the keyway that bar is set, sliding pair is formed, spacer flanger is connected on blind flange；Dust proof tube is connected on spacer flanger；It is top In the mohs tapered bore for being placed in slide-bar setting；Second worm screw is placed in the foundation base is set the 3rd by two the third angle contact ball bearings In the system of hole, and two outer faces of the 3rd hole system of foundation base are connected in by boring cover and transparent cover, realize that the axial direction of the second worm screw is consolidated It is fixed；Second worm screw and the second worm gear formation worm couple；Spacer flanger is provided with keyway, and gib head cunning is mounted with the keyway Key, the working face of gib head feather key is placed in the keyway of screw putter setting.

9. according to the roll repair welding built-up welder described in claim 8, it is characterised in that：The rack peace set on tailstock centre device Put in the first rectangular recess of foundation base, and be connected with foundation base, the first square of the foundation base set on tailstock centre device Shape guide rail and the second rectangular guideway are placed in two the first rectangular guideways set on foundation base, are set on tailstock centre device Stop tooth and the rack formation of lock pawl engage.