CN103921026B - The turning rolls of two-way adjustable inclination - Google Patents
The turning rolls of two-way adjustable inclination Download PDFInfo
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- CN103921026B CN103921026B CN201410160026.2A CN201410160026A CN103921026B CN 103921026 B CN103921026 B CN 103921026B CN 201410160026 A CN201410160026 A CN 201410160026A CN 103921026 B CN103921026 B CN 103921026B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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Abstract
The invention discloses the turning rolls of two-way adjustable inclination, belong to welding auxiliary equipment field, specifically comprise elevating movement subsystem, rotary motion subsystem and central controller three part.Elevating movement subsystem comprises servo-driver, servomotor, hydraulic pump, hydraulic valve bank, anti-channeling swivel bearing, pitching platform, hydraulic stem; Rotary motion subsystem is made up of turning rolls, reductor, servomotor and servo-driver; Central controller comprises industrial computer, manual operator, communication transition card, control signal wire; Object is to solve the intersection groove girth welding problem adapting to heavy wall large scale tubular weldment, having applicable large weight large scale weldment, can realize pitching and the rotary motion of weldment, keep the advantage of best soldering angle.
Description
Technical field
The present invention relates to a kind of turning rolls of two-way adjustable inclination, belong to welding auxiliary equipment field.
Background technology
In modern manufacturing industry, solder technology, as important manufacturing process, occupies very important status.In recent years, the welding profession development of China rapidly, but still occupies significant proportion based on prior welding mode manually.Human weld requires that welder has skilled operative skill, abundant practical experience, stable weld horizontal on the one hand; On the other hand, welding is again that a kind of working condition is poor, and flue dust is many, and radiation is large, dangerous high work.Therefore improving automaticity, is trend of the times to meet the requirement of high efficiency.Worldwide developed country, in conjunction with the development of self, advanced full automatic welding connection technology is employed in machinery welding, alleviate labour's anxiety, business manpower cost payout present situation costly relatively, also make the production capacity of welding quality and enterprise remain on favourable competitive position, obtain very considerable economic benefit.
Realize intersection circular seam welding at present and be connected to two kinds of implementation methods: (1) welding robot.The welding robot that the most import of country facilities is external, motion control is complicated, and causing trouble rate is high, difficult in maintenance, and cost is high, and after introducing, enterprise cannot continue to apply existing solder technology, causes the waste of technology and machinery; Although weldment is without the need to doing attitude and position motion, due to its multiple degrees of freedom, cause workman to its programming difficulty; Because robot nearly all adopts gas shielded arc welding, the solder that the unit interval provides is limited, for heavy wall weldment welding difficulty, only can be applicable to the welding of thin-walled weldment.(2) positioner.The free degree of most of positioner displacement cannot meet the requirement of intersection girth welding, though some can meet weldment displacement demand, cannot ensure that soldering tip is in vertical best soldering angle all the time.And due to Machine Design restriction, large weight cannot be applicable to, large-sized weldment displacement occasion.
Patent publication No. CN103331557A is conventional welding L-type positioner, and from structure, first it is only to make workpiece around trunnion axis and vertical axis revolving, and workpiece can not be made to do elevating movement, so be not suitable for the circular seam welding that two tubular weldments are just passing through; Secondly, the size of workpiece and weight are also subject to the restriction of frame for movement.Patent publication No. CN202780358U is also similar principle, and what cause not being suitable for two tubular weldments just passes through girth welding.
Patent publication No. CN102672402A is a kind of positioner making weldment rotation and pitching, is applicable to the girth welding that two tubular weldments are just passing through.First when weldment weight is excessive, whole platform for the load of its intermediate bearing and axle excessive and stress concentrate, be difficult to bearing at present and axle can meet load so, so be not suitable for large weight tubular weldment; Secondly due to height of its mechanically non-adjustable its distance platform whole of left and right rotating disk, so cause the size of workpiece to be restricted, the requirement of large scale weldment welding displacement is not met yet yet.
Patent publication No. CN2514963Y is the positioner that another kind can make weldment rotation and pitching, is applicable to the girth welding that two tubular weldments are just passing through.First, its two ends, left and right are realized by the ball screw of motor driven belts guide rail for the pitching of weldment, and when weldment weight is excessive, frictional resistance obviously increases, cause output power of motor to rise, even there will be due to motor output torque deficiency that cause cannot by the situation of barrier part jack-up; Secondly, the rotation of weldment needs to be driven by the clamping device be fixed in platform axle, when workpiece weight is large, very large to the radial load of axle.If in order to meet large-size workpiece need by axle design very long, then its specified radial load can be less, thus do not meet yet heavy wall large scale weldment welding displacement requirement.
Summary of the invention
The present invention adapts to the intersection girth welding problem of heavy wall large scale weldment in order to solve, propose a kind of turning rolls of two-way adjustable inclination.
The turning rolls of the two-way adjustable inclination of the present invention is made up of elevating movement subsystem, rotary motion subsystem and central controller three part.
Described elevating movement subsystem comprises servo-driver, servomotor, hydraulic pump, hydraulic valve bank, anti-channeling swivel bearing, pitching platform.
Pitching mesa base is slotted platform, and slotted platform two ends are welded with front and back end guide rail bracket, by rolling bearing connection wire rod in the middle of the guide rail bracket of front and back end, forms I-shaped structure, is welded with 2 parallel slide bars simultaneously in screw mandrel both sides.Screw mandrel first half section and second half section have the contrary screw thread of rotation direction, and screw mandrel rear end coaxially connects handwheel, screw mandrel can be driven to rotate by rotating handwheel; The hydraulic stem of 2 hydraulic pumps is connected to the rear and front end of pitching platform, carries out elevating movement by the flexible pitching platform that drives of two hydraulic stems; The coupling part of hydraulic stem and pitching platform adopts the articulated form being with guide rail slide block mechanism.
After servo-driver receives the control signal that central controller sends, drive servomotor, the output shaft connecting fluid press pump of servomotor, drive hydraulic pump works, the switching of hydraulic valve bank hydraulic control oil circuit and the flow direction of hydraulic oil, drive hydraulic stem to move up and down.
Described rotary motion subsystem is made up of turning rolls, reductor, servomotor and servo-driver.
2 turning rolls are by ball screw anatomical connectivity screw mandrel, and 2 turning rolls lay respectively at screw mandrel first half section with on the second half section, while turning rolls to be slidably connected slide bar; In like manner, anti-channeling swivel bearing support is positioned at screw mandrel first half section and on the second half section, anti-channeling swivel bearing support and screw mandrel form ball wire rod mechanism, be connected with sliding bar, anti-channeling swivel bearing support with fix with the turning rolls spacing in section, by handwheel adjustment roll wheel carrier spacing and two anti-channeling swivel bearing set spacings, be applicable to the weldment of different length.Anti-channeling swivel bearing axle connects reinforcement and is welded on anti-channeling swivel bearing support, for locking the position of large weldment.
Turning rolls is parallel to the front and back end guide rail bracket of pitching platform, is arranged on the screw mandrel of pitching platform, and turning rolls adopts the ball wire rod mechanism identical with pitching platform.Regulate the spacing with row's two rollers by the handwheel of turning rolls, be applicable to the weldment of various outer diameter.
After servo-driver receives the control signal that central controller sends, drive 2 servomotor work on pitching platform, servomotor is after reductor slows down, driving driving wheel rotates, drive weldment to rotate, and then driven pulley follow weldment rotation, plays a supportive role.
Described central controller comprises industrial computer, manual operator, communication transition card, control signal wire.
Industrial computer and manual operator connecting communication transition card simultaneously, communication signal is passed to servo-driver by communication transition card, adopts daisy chain type to connect between servo-driver, and then drives servomotor.
The dimensional parameters of industrial computer and manual operator input weldment and speed of welding, the built-in algorithms of industrial computer and manual operator is proposed according to mathematical modeling, calculate pitching and the rotary speed of weldment, be converted to the speed preset signal of 3 servo-drivers, through communication transition card, control signal is passed to servo-driver by control signal wire and drive servomotor, thus the stretching motion of hydraulic control bar and the rotary motion of roller, finally realize rotation and the elevating movement of weldment.
The invention has the advantages that:
(1) professional, practical.The present invention be directed to two tubular weldments and just pass through girth welding design, have the professional and practicality that other inventions and product do not possess.
(2) good to the compatibility of welding procedure.Need hardly to make any amendment to factory's original welding gun part, factory still can continue to use ripe welding procedure and experience.
(3) welding gun keeps best soldering angle.The built-in control algolithm of industrial computer and manual operator can ensure the best soldering angle that overall process welding gun is vertical, and solder flows down naturally, and the weld seam of heavy wall weldment also can through welding, and is applicable to 45 ° of groove weldings, ensure that welding quality.
(4) the large weight weldment welding of large scale.Owing to mechanically adopting the collocation of turning rolls and hydraulic platform.Can rotate the weldment of wide size range, and pitching Platform Designing avoid stress concentrate, also go for large weight weldment.
(5) energy-conservation, efficiently.The present invention adopts that transmission efficiency is higher, the planetary reducer of compact conformation substitutes traditional worm-gear speed reducer and cycloidal planetary gear speed reducer, and transmission efficiency will improve greatly, and decrease exposed parts, compact conformation, and the life-span is high.In addition, the dynamic permanent magnet synchronous servo motor by efficient energy-saving and supporting servo-driver thereof provide, the servo-driver that needs according to load can adjust the power output of motor, the DC Motor Drives adopted with turning rolls existing on market is compared with asynchronous AC motor transmission, and the present invention is more energy-conservation.The efficient energy-saving of pursuit system is also the developing direction of current industrial automation.
(6) operability, maintainability are good.Frame for movement of the present invention is simple, and workman can grasp its operation logic very soon, and Machine Design all adopts universal standard mechanism, for later maintenance brings conveniently.
(7) economy, reliability are high.Machine Design of the present invention adopts ripe mechanism and standard component, do not have extra high requirement, and required number of elements is relatively less to machining accuracy, therefore cost is low and reliability is high.
Accompanying drawing explanation
Fig. 1 is master-plan schematic diagram of the present invention;
Fig. 2 is the design diagram of elevating movement subsystem of the present invention;
Fig. 3 is the design diagram of pitching platform of the present invention and turning rolls;
Fig. 4 is the design diagram of rotary motion subsystem of the present invention;
Fig. 5 is hydraulic stem of the present invention and platform junction Design of Mechanical Structure schematic diagram;
Fig. 6 is hydraulic circuit design overall design diagram of the present invention;
Oil circuit schematic diagram when Fig. 6 (a) is left side of the present invention hydraulic stem rising;
Oil circuit schematic diagram when Fig. 6 (b) is left side of the present invention hydraulic stem decline;
Oil circuit schematic diagram when Fig. 6 (c) is right side of the present invention hydraulic stem rising;
Oil circuit schematic diagram when Fig. 6 (d) is right side of the present invention hydraulic stem decline;
Fig. 7 is central controller master-plan schematic diagram of the present invention;
101---welding gun; 102---little weldment; 103---large weldment; 104---anti-channeling swivel bearing; 1051---driving wheel; 1052---driven pulley; 106---hydraulic stem; 107---pitching platform; 108---reductor; 109---servomotor; 110---industrial computer; 111---manual operator; 112---control signal wire; 113---servo-driver; 114---motor three-phase power line; 115---hydraulic oil pipe; 116---hydraulic pump; 117---hydraulic valve bank; 118---hydraulic oil container; 119---communication transition card; 120---reinforcement; 201---screw mandrel; 202---handwheel; 203---front slideway frame; 204---rear end guide rail bracket; 205---slide bar; 206---turning rolls; 207---anti-channeling swivel bearing support; 208---slotted platform; 501---guide rail; 502---slide block; 503---cylinder cuts with scissors; 601---hydraulic cylinder; 602---two-position four-way solenoid directional control valve; 603---check valve; 604---pressure maintaining valve; 605---overflow valve; 606---two-bit triplet solenoid directional control valve;
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
The present invention is applied to the girth welding that heavy wall large scale tubular weldment is just passing through mutually, as shown in Figure 1: when large weldment 103 and little weldment 102 adopt 45 ° of groove weldings, can ensure that welding overall process welding gun 101 keeps vertical attitude, thus ensure best soldering angle.
The turning rolls of a kind of two-way adjustable inclination of the present invention is made up of elevating movement subsystem, rotary motion subsystem and central controller three part.
Described elevating movement subsystem is as depicted in figs. 1 and 2: comprise servo-driver 113, servomotor 109, hydraulic pump 116, hydraulic valve bank 117, hydraulic oil container 118, pitching platform 107, hydraulic oil pipe 115,2 anti-channeling swivel bearings, 104,2 reinforcements 120 and 2 hydraulic stems 106.
Described pitching platform 107 is as shown in Figure 3: comprise slotted platform 208, front slideway frame 203, rear end guide rail bracket 204, screw mandrel 201,2 slide bars 205 and 2 anti-channeling swivel bearing supports 207; Described slotted platform 208 rear and front end welding front slideway frame 203 and rear end guide rail bracket 204, through hole is had through rolling bearing connection wire rod 201 in the middle of front slideway frame 203 and rear end guide rail bracket 204, form I-shaped structure pitching platform 107, the slide bar 205 that 2 are parallel to screw mandrel 201 is welded on screw mandrel 201 both sides, slide bar 205 two ends are welded on front slideway frame 203 with on rear end guide rail bracket 204, screw mandrel 201 rear end coaxially connects handwheel 202, rotates handwheel 202 and screw mandrel 201 can be driven to rotate.Above-mentioned screw mandrel 201 first half section has the contrary screw thread of rotation direction with the second half section, preferably has the trapezoidal screw of self-locking effect.
As shown in Figure 2, described servo-driver 113 connects servomotor 109 by motor three-phase power line 114, the input hole of servomotor 109 output shaft connecting fluid press pump 116, hydraulic pump 116 controls 2 hydraulic oil pipes 115 by hydraulic valve bank 117,2 hydraulic oil pipes 115 connect 2 hydraulic cylinders 601 respectively, and the hydraulic stem 106 in hydraulic cylinder 601 is connected to pitching platform 107 two ends.Described hydraulic stem 106 and pitching platform 107 specifically adopt is with the articulated form of guide rail slide block mechanism to be connected, as shown in Figure 5, described guide rail 501 is the lower surface two ends in slotted platform 208, along two sections of square grooves that slotted platform 208 center line is opened, every section of square groove two end band plug, the stroke of square groove meets pitching platform 107 tiltable 45 degree.Adopt cylinder to cut with scissors 503 between slide block 502 with hydraulic stem 106 to be connected, such design avoids stress and concentrates, frictional resistance less in stability when can ensure that pitching platform 107 is static when lubricating good and pitching platform 107 motion process.
Servo-driver 113 drives servomotor 109 to work, and drive hydraulic pump 116 hydraulic oil of hydraulic oil container 118 to be flowed to the hydraulic stem 106 of pitching platform 107 both sides by hydraulic oil pipe 115, specific operation process is as follows:
As shown in Figure 6: the switching of hydraulic valve bank 117 hydraulic control oil circuit and the flow direction of hydraulic oil; Described hydraulic valve bank 117 comprises: two-position four-way solenoid directional control valve 602, check valve 603, pressure maintaining valve 604, overflow valve 605,2 two-bit triplet solenoid directional control valves 606; Hydraulic valve between hydraulic valve bank 117 is connected by hydraulic oil pipe 115.Two-position four-way solenoid directional control valve 602 is used for moving up and down of hydraulic control bar 106; Check valve 603 is in order to prevent fluid reverse flow; Pressure maintaining valve 604 and overflow valve 605 provide the back pressure of stable operation for hydraulic circuit; When 2 two-bit triplet solenoid directional control valves 606 are in right side duty, the oil circuit of the hydraulic cylinder 601 of hydraulic control oil pipe 115 and left side hydraulic stem 106; When 2 two-bit triplet solenoid directional control valves 606 are in left side duty, the oil circuit of the hydraulic cylinder 601 of hydraulic control oil pipe 115 and right side hydraulic stem 106.Hydraulic pump 116 preferred plunger formula variable pump, hydraulic cylinder 601 is piston-type hydraulic cylinder preferably; Check valve 603 is angle check valve preferably;
Left side hydraulic stem 106 moves past journey as follows: as shown in Figure 6 (a): hydraulic pump 116 supplies hydraulic oil by hydraulic oil pipe 115 to hydraulic cylinder 601, two-position four-way solenoid directional control valve 602 and two two-bit triplet solenoid directional control valves 606 are in right side duty, hydraulic control oil enters in the piston cavity of resorption of hydraulic cylinder 601, hydraulic oil simultaneously in piston upper chamber is along hydraulic oil pipe 115, through two-bit triplet solenoid directional control valve 606, two-position four-way solenoid directional control valve 602 and overflow valve 605 are back to hydraulic oil container 118; Hydraulic oil promotes the piston upwards in hydraulic cylinder 601, and drive on hydraulic stem 106 and move, on hydraulic stem 106, shipper pole movable slider 502 moves, and pitching platform 107 inclination angle is increased; When the unexpected power down of system or servomotor 109 are shut down, the hydraulic oil that there is hydraulic cylinder 601 due to check valve 603 can not reflux hydraulic oil container 118, and pitching platform 107 can not fall to causing danger suddenly;
The folding process of left side hydraulic stem 106 is as follows: as shown in Figure 6 (b): hydraulic pump 116 gives hydraulic cylinder 601 for hydraulic oil by hydraulic oil pipe 115, two-position four-way solenoid directional control valve 602 is in left side duty, two two-bit triplet solenoid directional control valves 606 are in right side duty, hydraulic control oil enters in the piston upper chamber of hydraulic cylinder 601, by the pressure effect of hydraulic oil in the Action of Gravity Field of pitching platform 107 and the piston upper chamber of hydraulic cylinder 601, the piston promoting hydraulic cylinder 601 moves down, hydraulic oil in piston cavity of resorption is along hydraulic oil pipe 115, through two-bit triplet solenoid directional control valve 606, two-position four-way solenoid directional control valve 602 and overflow valve 605 are back to hydraulic oil container 118, moving downward of the piston of hydraulic cylinder 601, drives hydraulic stem 106 to move down, and hydraulic stem 106 moves down band movable slider 502 and moves, and pitching platform 107 inclination angle is reduced,
When left side valve opened by 2 two-bit triplet solenoid directional control valves 606 simultaneously, control right side hydraulic stem 106 and move up and down, as shown in Fig. 6 (c) He Fig. 6 (d), control procedure is the same with left side hydraulic stem 106.
Drive the permagnetic synchronous motor of the first-selected efficient energy-saving of servomotor 109 of hydraulic pump 116.By the control to servomotor 109 rotating speed and hydraulic valve, the control of luffing angle to pitching platform 107 and speed can be realized.Due to work during left and right hydraulic stem 106 difference, just can realize controlling the elevating movement of pitching platform 107 with a set of servo-driver 113 and servomotor 109 like this.Only need do not opening left side or right side in the same time by two two-bit triplet solenoid directional control valves 606, the hydraulic cylinder 601 being respectively two hydraulic stems 106 in left and right provides fuel feeding and oil-discharging circuit simultaneously.
Described rotary motion subsystem, as shown in Figure 3 and Figure 4: be made up of turning rolls 206, reductor 108,2 servomotors 109 and 2 servo-drivers 113.
2 turning rolls 206 on the screw mandrel 201 of pitching platform 107, lay respectively at screw mandrel 201 first half section with on the second half section by ball screw anatomical connectivity, and meanwhile, the equal empty set of turning rolls 206 is on slide bar 205; In like manner, anti-channeling swivel bearing support 207 also lays respectively at screw mandrel 201 first half section and on the second half section, anti-channeling swivel bearing support 207 and screw mandrel 201 also form ball wire rod mechanism, are slidably connected with slide bar 205, anti-channeling swivel bearing support 207 with fix with turning rolls 206 spacing in section.By the rotation of screw mandrel 201, can make turning rolls 206 near or away from, realize the adjustment of turning rolls 206 spacing, also can make simultaneously anti-channeling swivel bearing support 207 near or away from, realize the adjustment of anti-channeling swivel bearing support 207 spacing, make the present invention be applicable to the weldment of different length; Anti-channeling swivel bearing 104 axle connects reinforcement 120 and is welded on anti-channeling swivel bearing support 207, and for locking the large position of weldment 103 on pitching platform 107, when preventing pitching platform 107 from moving, weldment glides.Anti-channeling swivel bearing 104 is cylinder roller bearing preferably.
Described turning rolls 206 is adjustable roller frame preferably, and the front and back end guide rail bracket that turning rolls 206 is parallel to pitching platform 107 is arranged on the screw mandrel 201 of pitching platform 107, and turning rolls 206 adopts the ball screw structure identical with pitching platform 107.The screw thread leading portion of turning rolls 206 upper screw rod 201 is contrary with back segment rotation direction, preferably has the trapezoidal screw of self-locking effect.The regulative mode of ball screw respective outer side edges handwheel 202 is taked in the adjustment of roller spacing, by adjusting the centre-to-centre spacing with row's roller, is suitable for various outer diameter weldment.
The driving wheel 1051 of turning rolls 206 adopts drive pattern, namely each driving wheel 1051 configures a set of servomotor 109 and servo-driver 113 drives, the endoporus of driving wheel 1051 is connected by key with the output shaft of reductor 108, the input hole of reductor 108 and the output shaft of servomotor 109 adopt key to be connected, servomotor 109 and both reductors 108 end face adopt Flange joint, the permagnetic synchronous motor of the preferred efficient energy-saving of servomotor 109; Servo-driver 113 drives servomotor 109 to move, and after reductor 108 slows down, drives driving wheel 1051 to rotate by shaft coupling; Driven pulley 1052 is rotated around its rotating shaft by rolling bearing; The rotary motion of little weldment 102 and large weldment 103 drives realization by driving wheel 1051, and driven pulley 1052 plays a supportive role.Wrap up a circle rubber wheel outside the wheel hub of roller to contact with large weldment 103.
Described central controller comprises industrial computer 110, manual operator 111, communication transition card 119, control signal wire 112.
As shown in Figure 1 and Figure 7: industrial computer 110 and manual operator 111 form host computer, manual operator 111 is for the position of workman's on-site manual adjustment weldment; Host computer connects servo-driver 113 by communication transition card 119, adopts daisy chain type to connect between servo-driver 113, and servo-driver 113 is connected by motor three-phase power line 114 with supporting servomotor 109 respectively.Host computer is connected with communication transition card 119 and between communication transition card 119 with servo-driver 113 by control signal wire 112.
In welding process, first large weldment 103 is placed on turning rolls 206, then needs by welding relative position, little weldment 102 is placed on large weldment 103 by jack lift and just passes through position, manually in circumferential weld spot welding, two weldment relative positions are fixed; 45 ° of grooves that welding gun 101 and two weldments are just passing through all keep vertical, industrial computer 110 or manual operator 111 are by respective human-computer interaction interface, input the information such as dimensional parameters and speed of welding of large weldment 103 and little weldment 102, the built-in algorithms of host computer carries out mathematical modeling according to the attitude of the movement locus butt-welding fitting of groove solder joint, calculate pitching and the rotary speed of weldment, then be the rotary speed of driving wheel 1051 and the stretching speed of hydraulic stem 106 by these two rate conversion, be finally converted into the speed preset value of each servomotor 109.The two path control signal of industrial computer and manual operator is merged into a road control signal by communication transition card 119, servo-driver 113 is passed to by control signal wire 112, servo-driver 113 drives servomotor 109, thus the rotary motion of the stretching motion of hydraulic control bar 106 and turning rolls 206 driving wheel 1051, finally realize pitching and the rotary motion of weldment.
The interface program of industrial computer 110 and manual operator 111 mainly realizes following functions:
1) input size weldment dimensional parameters and speed of welding, by the algorithm proposed after butt-welding fitting modeling, calculate pitching and the rotary speed of weldment, give corresponding servo-driver by serial communication by the speed preset value transmit of each servomotor.
2) Manual definition welds initial point, by serial communication, initial point information is passed to servo-driver, and then drives servomotor that weldment position is zero to initial point.
3) Control Welding Process function, comprising: start, and stops, the fine setting of pitching and rotary motion.
4) welding progress and each servomotor operational factor is shown in real time.
5) building database, preserves various welding process data if desired.
6) welded and alarm signal prompting.
Due in welding process, environment for use electromagnetic radiation of the present invention is strong, therefore the jamproof RS485 communications protocol of all employings between central controller and servo-driver.
Because the present invention is suitable for large weight weldment, therefore hydraulic stem 106 load is large, and system pressure, at 20MPa ~ 30MPa, belongs to middle-and-high voltage system.Hydraulic pump 116 adopts Variable plunger pump, and under the prerequisite meeting system pressure requirements, cost is low, easy to maintenance.By to the rotating speed of servomotor 109, the control of output torque, achieve hydraulic stem 106 point-to-point speed and the control of holding power that provides for pitching platform 107.
The rotary motion of weldment can take the mode of clamping device and two ends rotating disk to substitute realization, or also can directly take self-adjustable turning rolls to replace the adjustable roller frame in the present invention to realize.Elevating movement drives the mode of the vertical ball wire rod mechanism in two ends to realize by motor, spacing in the present invention between anti-channeling swivel bearing support and turning rolls also can not be fixed, and can realize by adding the longitudinal screw mandrel of Article 2 and coaxially connect second handwheel on pitching platform.
In order to adapt to the welding of different size weldment, need before welding to carry out condition setting; Meanwhile, in order to manual intervention weldment attitude, the present invention is provided with central controller.The central controller that the present invention proposes comprises two terminals, and one is industrial computer, and another is manual operator, and the function of two terminals is overlapping, for subsequent use each other.The interface of industrial computer is more friendly; The operation of manual operator is more convenient, and the locus of operator is more flexible.
Claims (5)
1. a turning rolls for two-way adjustable inclination, is characterized in that: comprise elevating movement subsystem, rotary motion subsystem and central controller three part;
Described elevating movement subsystem comprises servo-driver, servomotor, hydraulic pump, hydraulic valve bank, pitching platform;
Pitching mesa base is slotted platform, slotted platform two ends are welded with front and back end guide rail bracket, by rolling bearing connection wire rod in the middle of the guide rail bracket of two ends, form I-shaped structure, be welded with parallel slide bar in screw mandrel both sides simultaneously, screw mandrel first half section and second half section have the contrary screw thread of rotation direction, and screw mandrel rear end coaxially connects handwheel; Screw mandrel is driven to rotate by rotating handwheel;
After servo-driver receives the control signal that central controller sends, drive servomotor, the output shaft connecting fluid press pump of servomotor, drive hydraulic pump works; The hydraulic stem of two hydraulic pumps is connected to the rear and front end of pitching platform, carries out elevating movement by the flexible pitching platform that drives of two hydraulic stems;
Described hydraulic valve bank comprises: two-position four-way solenoid directional control valve, check valve, pressure maintaining valve, overflow valve and two-bit triplet solenoid directional control valve; Connected by hydraulic oil pipe between hydraulic valve; Two-position four-way solenoid directional control valve is used for moving up and down of hydraulic control bar; Check valve is in order to prevent fluid reverse flow; Pressure maintaining valve and overflow valve provide the back pressure of stable operation for hydraulic circuit; Two two-bit triplet solenoid directional control valves switch opening state simultaneously, and hydraulic control oil pipe is the hydraulic cylinder conveying liquid force feed of different hydraulic stem; Hydraulic pump is plunger type variable capacity pump, and hydraulic cylinder is piston-type hydraulic cylinder; Check valve is angle check valve; Servomotor is permagnetic synchronous motor;
Servo-driver controls the pressure that driven by servomotor hydraulic pump regulates hydraulic circuit, hydraulic pump is through hydraulic oil pipe and supporting hydraulic valve bank connecting fluid depression bar, the switching of hydraulic valve bank hydraulic control oil circuit and the flow direction of hydraulic oil, drive hydraulic stem stretching motion, finally realize level and the inclination of pitching platform; Due to the existence of check valve, can stop due to system conduct oneself with dignity cause hydraulic oil backflow, realize the locking at turning rolls inclination angle;
Described rotary motion subsystem is made up of turning rolls, reductor, servomotor and servo-driver;
Two turning rolls are by ball screw anatomical connectivity screw mandrel, and two turning rolls are positioned at screw mandrel first half section with on the second half section, while two turning rolls to be slidably connected slide bar; Regulate two turning rolls spacing by handwheel, be applicable to the weldment of different length; Turning rolls adopts the ball screw structure identical with pitching platform, regulates the spacing with row's two rollers, be applicable to the weldment of various outer diameter by the handwheel of turning rolls;
After servo-driver receives control signal, drive the servomotor work on pitching platform, servomotor, after reductor slows down, drives driving wheel to rotate, and the final weldment that drives rotates;
Described central controller comprises industrial computer, manual operator, communication transition card, control signal wire;
Industrial computer and manual operator connecting communication transition card simultaneously, communication signal is passed to servo-driver by communication transition card, adopts daisy chain type to connect between servo-driver;
The dimensional parameters of industrial computer and manual operator input weldment and speed of welding, built-in algorithms through mathematical modeling proposition calculates pitching and the rotary speed of weldment, and be converted to the rotary speed of roller and the stretching speed of hydraulic stem, through communication transition card, control signal is passed to servo-driver to drive servomotor, thus the stretching motion of hydraulic control bar and the rotary motion of roller, finally realize rotation and the elevating movement of weldment.
2. the turning rolls of a kind of two-way adjustable inclination according to claim 1, is characterized in that, the coupling part of hydraulic stem and pitching platform adopts the articulated form being with guide rail slide block mechanism; Described guide rail is the lower surface two ends in slotted platform, along two sections of square grooves that slotted platform center line is opened, and every section of square groove two end band plug, the stroke of square groove meets pitching platform and can tilt 45 degree; Cylinder is adopted to be hinged between slide block and hydraulic stem.
3. the turning rolls of a kind of two-way adjustable inclination according to claim 1, is characterized in that, described pitching platform is also provided with two cover preventing shaft swaying bearing assemblies, includes anti-channeling swivel bearing support, anti-channeling swivel bearing and reinforcement; In two cover preventing shaft swaying bearing assemblies, two anti-channeling swivel bearing supports are positioned at screw mandrel first half section and on the second half section, two anti-channeling swivel bearing supports and screw mandrel form ball wire rod mechanism, and be connected with sliding bar, two anti-channeling swivel bearing set spacings are regulated, for the position of fixing weldment on pitching platform by handwheel.
4. the turning rolls of a kind of two-way adjustable inclination according to claim 1, it is characterized in that, work when described two hydraulic stems are different, can realize controlling the elevating movement of pitching platform with a set of servo-driver and servomotor, do not opening left side or right side in the same time by two two-bit triplet solenoid directional control valves, the hydraulic cylinder being respectively two hydraulic stems provides fuel feeding and oil-discharging circuit simultaneously.
5. the turning rolls of a kind of two-way adjustable inclination according to claim 1, it is characterized in that, the rotary motion of weldment takes the mode of clamping device and two ends rotating disk to substitute realization, two ends jig fixes cylindrical shell or two ends discs clamp weldment, disk and jig rotation, drive cylindrical shell to rotate; Turning rolls takes self-adjustable turning rolls to replace, and the spacing between anti-channeling swivel bearing support and turning rolls is not fixed, by adding Article 2 screw mandrel and coaxial connection second handwheel realization on pitching platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410160026.2A CN103921026B (en) | 2014-04-21 | 2014-04-21 | The turning rolls of two-way adjustable inclination |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410160026.2A CN103921026B (en) | 2014-04-21 | 2014-04-21 | The turning rolls of two-way adjustable inclination |
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| Publication Number | Publication Date |
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| CN103921026A CN103921026A (en) | 2014-07-16 |
| CN103921026B true CN103921026B (en) | 2016-01-27 |
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| CN201410160026.2A Expired - Fee Related CN103921026B (en) | 2014-04-21 | 2014-04-21 | The turning rolls of two-way adjustable inclination |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108406223B (en) * | 2018-04-25 | 2021-04-27 | 成都瑞合科技有限公司 | Welding repair method and device for thin-wall parts |
| CN109604875B (en) * | 2019-01-28 | 2024-04-26 | 扬州中集通华专用车有限公司 | Tank processing equipment and processing method thereof |
| CN109693025A (en) * | 2019-02-13 | 2019-04-30 | 武昌船舶重工集团有限公司 | A kind of cone idler wheel moulding bed |
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| SU275262A1 (en) * | 1969-02-11 | 1986-07-23 | Бийский Котельный Завод | Roller welding bench |
| SU1269957A1 (en) * | 1984-03-20 | 1986-11-15 | Предприятие П/Я Г-4781 | Roller rig |
| CN102079030A (en) * | 2011-02-11 | 2011-06-01 | 青岛武晓集团有限公司 | Scurrying-preventing roller frame |
| CN202591870U (en) * | 2012-06-25 | 2012-12-12 | 天津坤源工贸有限公司 | Auxiliary carrier roller for spiral tube |
| CN203237749U (en) * | 2013-03-21 | 2013-10-16 | 河南六建建筑集团有限公司 | Automatically-lifting-type roller carrier |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0825088A (en) * | 1994-07-19 | 1996-01-30 | Mitsubishi Electric Corp | Positioner tuilting device for welding robot |
| KR100418832B1 (en) * | 2001-03-05 | 2004-02-19 | 대우조선해양 주식회사 | Tilting turning roller |
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2014
- 2014-04-21 CN CN201410160026.2A patent/CN103921026B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU275262A1 (en) * | 1969-02-11 | 1986-07-23 | Бийский Котельный Завод | Roller welding bench |
| SU1269957A1 (en) * | 1984-03-20 | 1986-11-15 | Предприятие П/Я Г-4781 | Roller rig |
| CN102079030A (en) * | 2011-02-11 | 2011-06-01 | 青岛武晓集团有限公司 | Scurrying-preventing roller frame |
| CN202591870U (en) * | 2012-06-25 | 2012-12-12 | 天津坤源工贸有限公司 | Auxiliary carrier roller for spiral tube |
| CN203237749U (en) * | 2013-03-21 | 2013-10-16 | 河南六建建筑集团有限公司 | Automatically-lifting-type roller carrier |
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| CN103921026A (en) | 2014-07-16 |
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