CN202317431U - Hydraulic servo control phase friction welding machine - Google Patents
Hydraulic servo control phase friction welding machine Download PDFInfo
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- CN202317431U CN202317431U CN2011204308598U CN201120430859U CN202317431U CN 202317431 U CN202317431 U CN 202317431U CN 2011204308598 U CN2011204308598 U CN 2011204308598U CN 201120430859 U CN201120430859 U CN 201120430859U CN 202317431 U CN202317431 U CN 202317431U
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Abstract
When a pair of work pieces is in friction welding, one work piece rotates, the other work piece axially moves to exert force, and a friction welding head is formed according to the principle frictional heat generation. A hydraulic servo control phase friction welding machine comprises a main machine with a hydraulic motor (1), a hydraulic system (2), an electric control system (3), a lubrication system (4) and a cooling system (5). The main machine is connected with the hydraulic system, the hydraulic system is connected with the electric control system and a cooling system, and the lubrication system is connected with the main machine. The hydraulic servo control phase friction welding machine is applied to welding work pieces with strict phase requirements.
Description
Technical field:
utility model relates to machinery, hydraulic pressure, electric integrated technical field; Be specifically related to a kind of Hydraulic Servo Control phase place friction-welding machine.
Background technology:
During
a pair of workpiece friction welding, one of them workpiece rotates, and another workpiece moves axially and exerts pressure, and utilizes the frictional heat principle to form friction welding joint.If the workpiece of welding is not pipe, pole but square tube, square rod; After welding is accomplished; Require 4 planes, and corner angle still align, when this just requires tumbler to be braked, can accurately stop on this fixing angle; Keep two determined phase relations of workpiece, be called the phase place friction welding.
are the two ends of a workpiece sometimes, and each welds a joint, and fixing angle requirement is arranged between the joint at two ends, i.e. " double end " friction welding (FW).Be the angle that guarantees to fix, friction-welding machine adopts two ends weldment conjugation to drive usually, is actually the friction welding of a kind of mechanical synchronization phase place, and this is that a kind of frame for movement is numerous and diverse, and the phase angle can not arbitrarily be provided with, the technical friction-welding machine that falls behind relatively.
Summary of the invention:
The purpose of
utility model provides a kind of process limitations that breaks through known phase place friction welding (FW), improves the phase controlling precision, realizes the Hydraulic Servo Control phase place friction-welding machine that friction welding process is freely controlled the phase potential energy.
Above-mentioned purpose realizes through following technical scheme:
a kind of Hydraulic Servo Control phase place friction-welding machine; Its composition comprises: Hydraulic Servo Control phase place friction-welding machine, and its composition comprises: have main frame, hydraulic system, electric-control system, lubricating system, the cooling system of hydraulic motor, described main frame connects hydraulic system; Described hydraulic system connects electric-control system and cooling system; Described lubricating system connects described main frame, and described main frame comprises lathe bed, above the described lathe bed guide rail is housed; Described guide rail connects clamping welded part A translation anchor clamps; The rotary clamp of the welded part B of clamping and described welded part A welding, described rotary clamp connects main shaft, and described main shaft is equipped with brake, bearing, encoder and hydraulic motor in order.
described Hydraulic Servo Control phase place friction-welding machine; Described hydraulic system comprises motor; Described motor connects hydraulic pump, and described hydraulic pump connects check valve, reversal valve, oil cylinder, described hydraulic motor, fuel tank, Pressure gauge, sensor, proportional pressure control valve and servo flow metered valve.
described Hydraulic Servo Control phase place friction-welding machine; Described electric-control system comprises industrial control computer; Described industrial control computer connects programmable controller PLC, and described industrial control computer is connected PID PID closed loop, described absolute encoder, one group of magnetic valve, ratio pressure amplification plate and servo flow amplification plate with described programmable controller PLC.
described Hydraulic Servo Control phase place friction-welding machine, described lubricating system comprises motor, described motor connection gear pump, described gear pump connects check valve, overflow valve, fuel tank, Pressure gauge.
Beneficial effect:
The process limitation of known phase place friction welding (FW) has been broken through in
1. the utility model, compares with other welding methods, when improving the welding phase accuracy, has improved weld strength, welding work pieces quality, production efficiency greatly.Practice thrift the energy, welding material, can realize friction welding process automation control.
Weldment form and rotary inertia have been cracked to the limitation of phase place friction welding (FW) in
2. the utility model, realize the Self Adaptive Control at special-shaped weldment friction welding process arbitrary phase angle.Promoted the manufacturing technology level of friction-welding machine.
are the control of the utility model servo apply hydraulic pressure technology 3.; Read in real time and feed back the spindle angular amount; With the comparison operation of setting phase place, the output flow and the pressure of automatic regulator solution pressure motor, output flow is accurately controlled spindle angular speed, angular displacement; Pressure can control torque, has realized welding phase controlling accurately.
4. the lubricating system of the utility model are that the moving component of main frame provides the lubricated service life that has prolonged mechanical moving element; Cooling system is a hydraulic system cool cycles oil; Do not adopt normally used air-cooled or recirculated water cooling; And adopt the more accurate oil cooling machine of temperature control, and make welding not receive the influence of hydraulic fluid temperature, phase controlling is more accurate; Hydraulic system has adopted by pressure sensor, displacement transducer, proportional pressure control valve and servo flow metered valve forms closed-loop system; The passing ratio overflow valve is controlled the moment of torsion of hydraulic motor rotation and is controlled the rotatable phase angle through the servo flow metered valve; Improved the phase controlling precision, the phase controlling precision can reach ± 1o.
5. the electric-control system of the utility model have adopted industrial computer, programmable controller PLC to realize control; PID PID closed-loop control system reads predefined phase angle comparison operation in feedback data and the system of absolute encoder in real time; Controlled the flow that servo flow amplifies plate and servo flow metered valve accurately; Having controlled hydraulic motor in real time is the angle amount of main shaft; Control ratio pressure amplifies the output pressure of plate and proportional pressure control valve simultaneously, has realized the accurate friction welding phase place of welding work pieces.
Description of drawings:
accompanying drawing 1 be this product structural representation.
The specific embodiment:
Embodiment 1:
a kind of Hydraulic Servo Control phase place friction-welding machine; Its composition comprises: the main frame, hydraulic system 2, electric-control system 3, lubricating system 4, the cooling system 5 that have hydraulic motor 1; Described main frame connects hydraulic system; Described hydraulic system connects electric-control system and cooling system, and described lubricating system connects described main frame.
described main frame comprises lathe bed; Above the described lathe bed guide rail is housed, described guide rail connects translation anchor clamps 6, described translation clamp welded part A; Described welded part A and welded part B welding; Described welded part B is clipped on the rotary clamp 7, and described rotary clamp connects main shaft 8, and described main shaft is equipped with brake 9, bearing 10, encoder 11 and hydraulic motor in order.
Embodiment 2:
embodiment 1 described Hydraulic Servo Control phase place friction-welding machine; Described hydraulic system comprises motor; Described motor connects hydraulic pump, and described hydraulic pump connects check valve, reversal valve, oil cylinder, described hydraulic motor, fuel tank, Pressure gauge, sensor, proportional pressure control valve 12 and servo flow metered valve 13.
Embodiment 3:
embodiment 1 or 2 described Hydraulic Servo Control phase place friction-welding machines; Described electric-control system comprises industrial control computer; Described industrial control computer connects programmable controller PLC, and described industrial control computer is connected PID PID closed loop, described absolute encoder, one group of magnetic valve, ratio pressure amplification plate 14 and servo flow amplification plate 15 with described programmable controller PLC.
Embodiment 4:
embodiment 1 or 2 described Hydraulic Servo Control phase place friction-welding machines, described lubricating system comprises motor, described motor connection gear pump, described gear pump connects check valve, overflow valve, fuel tank, Pressure gauge.
Embodiment 5:
a kind of Hydraulic Servo Control phase place friction welding method, hydraulic system adopt forms closed-loop system by absolute encoder, pressure sensor, proportional pressure control valve and servo flow metered valve, and the passing ratio overflow valve is controlled the moment of torsion of hydraulic motor rotation and passed through the angular speed and the angular displacement of servo flow metered valve control main axis rotation; Realize phase angle control; When friction welding, strengthen gradually by 1 grade, 2 grades, 3 stage of upset force value, after 2 grades of frictions, reduce the speed of mainshaft immediately; Carry out PID PID computing with programmable controller PLC, industrial computer; The bit comparison of setting in the feedback data that the control system reads absolute encoder in real time and the control system mutually forms flow, angular displacement closed-loop control, controls the anglec of rotation of hydraulic motor speed and control main shaft in real time; When reaching predefined phase angle; Make brake " braking ", after main shaft stops operating, with bigger pressure; Faster speed is carried out last upset, can realize accurate phase place between the welding work pieces.
Embodiment 6:
Embodiment 5 described Hydraulic Servo Control phase place friction welding methods adopt described phase place friction-welding machine and hydraulic servo technology that control is implemented in the angular speed and the angular displacement of main shaft;
Workpiece is installed in the rotary clamp; Workpiece is installed on the translation anchor clamps; Starting the hydraulic pump drive hydraulic motor rotates main shaft, rotary clamp, unit one; Second workpiece moves to unit one; When touching turning of work piece, begin 1 grade of friction,, begin 2 grades of frictions with displacement or time control; When reaching uniform temperature and deformation displacement, 2 grades of frictions finish;
PID PID control system is passed in the instruction of
programmable controller PLC or computer; The bit comparison of setting in the feedback data that reads absolute encoder in real time and the control system mutually, the pressure output of electric-control system passing ratio pressure power amplification plate control ratio overflow valve.(Torque Performance of Hydraulic Motor and speed are exported, promptly regulated to the flow of control servo flow metered valve to electric-control system through servo flow power amplification plate simultaneously.Carry out the closed loop Position Control.
are sent the brake halt instruction, are made main shaft stop at the phase position of requirement to brake when the phase angle reaches setting value.Realize phase controlling accurately, after main shaft stopped operating, second workpiece carried out last upset fast with bigger pressure and speed.During the work of phase place friction-welding machine, unified lubricating system is that moving component, the main shaft bearing of main frame provide lubricated separately, and unified cooling system is a hydraulic system cool cycles oil
Embodiment 7:
the foregoing description described Hydraulic Servo Control phase place friction-welding machine and welding method, single head phase place friction-welding machine, composition comprises: main frame, hydraulic system, electric-control system, lubricating system, cooling system.
wherein main frame comprise main shaft, translation anchor clamps, rotary clamp, absolute encoder, brake, machine driving.
During
friction welding; A pair of workpiece is installed in translation anchor clamps and the rotary clamp by fixing initial phase relation respectively; Workpiece rotates, and another workpiece moves axially and exerts pressure and utilize the frictional heat principle to form friction welding joint.
Set phase place in
controller in electric-control system; Primer fluid pressing system motor and oil pump provide power through hydraulic motor to main shaft; Workpiece is rotated; Electric-control system sends the workpiece move, touches to begin friction behind the workpiece, and excess metal is extruded; When arriving uniform temperature and deformation displacement, electric-control system sends the deceleration instruction conditioning signal to main shaft.The pressure output of electric-control system passing ratio pressure power amplification plate control ratio overflow valve.Simultaneously electric-control system is through the output flow of servo flow power amplification plate control servo flow metered valve, promptly regulate hydraulic motor speed and moment of torsion.Angle amount feedback element absolute encoder carries out the angle amount in real time and feeds back to electric-control system.When the phase angle reaches setting value; Electric-control system sends brake halt instruction, main shaft to brake and stops operating; Workpiece is with bigger pressure and speed fast moving upset; Welding finishes and realizes phase controlling accurately, and during the work of phase place friction-welding machine, that lubricating system is that moving component, the main shaft bearing of main frame provides is lubricated, cooling system is a hydraulic system cool cycles oil.
Claims (4)
1. Hydraulic Servo Control phase place friction-welding machine; Its composition comprises: the main frame, hydraulic system, electric-control system, lubricating system, the cooling system that have hydraulic motor; It is characterized in that: described main frame connects hydraulic system, and described hydraulic system connects electric-control system and cooling system, and described lubricating system connects described main frame; Described main frame comprises lathe bed; Above the described lathe bed guide rail is housed, described guide rail connects clamping welded part A translation anchor clamps, the rotary clamp of the welded part B of clamping and described welded part A welding; Described rotary clamp connects main shaft, and described main shaft is equipped with brake, bearing, encoder and hydraulic motor in order.
2. Hydraulic Servo Control phase place friction-welding machine according to claim 1; It is characterized in that: described hydraulic system comprises motor; Described motor connects hydraulic pump, and described hydraulic pump connects check valve, reversal valve, oil cylinder, described hydraulic motor, fuel tank, Pressure gauge, sensor, proportional pressure control valve and servo flow metered valve.
3. Hydraulic Servo Control phase place friction-welding machine according to claim 1 and 2; It is characterized in that: described electric-control system comprises industrial control computer; Described industrial control computer connects programmable controller PLC, and described industrial control computer is connected PID PID closed loop, described absolute encoder, one group of magnetic valve, ratio pressure amplification plate and servo flow amplification plate with described programmable controller PLC.
4. Hydraulic Servo Control phase place friction-welding machine according to claim 1 and 2, it is characterized in that: described lubricating system comprises motor, described motor connection gear pump, described gear pump connects check valve, overflow valve, fuel tank, Pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204308598U CN202317431U (en) | 2011-11-03 | 2011-11-03 | Hydraulic servo control phase friction welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204308598U CN202317431U (en) | 2011-11-03 | 2011-11-03 | Hydraulic servo control phase friction welding machine |
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| Publication Number | Publication Date |
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| CN202317431U true CN202317431U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204308598U Expired - Lifetime CN202317431U (en) | 2011-11-03 | 2011-11-03 | Hydraulic servo control phase friction welding machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042304A (en) * | 2012-12-28 | 2013-04-17 | 上海胜春机械有限公司 | Servo hydraulic system of friction welding machine |
| CN103350278A (en) * | 2013-06-24 | 2013-10-16 | 天津大学 | Pressure-controlled friction stir welding main shaft head device |
| CN105414741A (en) * | 2016-01-08 | 2016-03-23 | 重庆德蚨乐机械制造有限公司 | Friction welding floating zero system and axial and radial welding control method thereof |
| CN105665914A (en) * | 2016-03-03 | 2016-06-15 | 芜湖日升重型机床有限公司 | Hydraulic system of friction welding machine tool |
| CN108608107A (en) * | 2018-05-23 | 2018-10-02 | 江苏科技大学 | A kind of phase friction welding machine and welding method |
-
2011
- 2011-11-03 CN CN2011204308598U patent/CN202317431U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103042304A (en) * | 2012-12-28 | 2013-04-17 | 上海胜春机械有限公司 | Servo hydraulic system of friction welding machine |
| CN103350278A (en) * | 2013-06-24 | 2013-10-16 | 天津大学 | Pressure-controlled friction stir welding main shaft head device |
| CN105414741A (en) * | 2016-01-08 | 2016-03-23 | 重庆德蚨乐机械制造有限公司 | Friction welding floating zero system and axial and radial welding control method thereof |
| CN105665914A (en) * | 2016-03-03 | 2016-06-15 | 芜湖日升重型机床有限公司 | Hydraulic system of friction welding machine tool |
| CN108608107A (en) * | 2018-05-23 | 2018-10-02 | 江苏科技大学 | A kind of phase friction welding machine and welding method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
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| CX01 | Expiry of patent term |