CN104785919A - Device for friction welding phase control - Google Patents
Device for friction welding phase control Download PDFInfo
- Publication number
- CN104785919A CN104785919A CN201510235921.0A CN201510235921A CN104785919A CN 104785919 A CN104785919 A CN 104785919A CN 201510235921 A CN201510235921 A CN 201510235921A CN 104785919 A CN104785919 A CN 104785919A
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- steel pawl
- friction welding
- positioning
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Classifications
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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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/123—Controlling or monitoring the welding process
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
- B23K20/227—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded with ferrous layer
- B23K20/2275—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded with ferrous layer the other layer being aluminium
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
- B23K2103/20—Ferrous alloys and aluminium or alloys thereof
Abstract
The invention belongs to the technical field of friction welding, and provides a device for friction welding phase control to solve the problems that a motor is easy to damage and the welding quality is influenced occurring in processing of a positive-pole conductive device with a large section and a large inertia in a friction welding electronic machinery constrainedly positioning mode. The device comprises a control unit, a positioning unit and a spindle motor for a steel claw fixture. The positioning unit is connected with the control unit and the spindle motor for the steel claw fixture respectively. The control unit is used for sending a positioning instruction to the positioning unit, and the positioning unit controls the rotating speed of the spindle motor of the steel claw fixture to be in zero and finish the phase control at the same time once receiving the positioning instruction sent by the control unit. The device for friction welding phase control applies to the fast phase control of the positive-pole conductive device with the large section and the large inertia, the positioning time is smaller than 6 seconds, and the absolute value of the phase control error is smaller than 1 degree.
Description
Technical field
The invention belongs to the technical field of friction welding (FW), be specifically related to a kind of device for friction welding (FW) phase controlling.
Background technology
Friction welding (FW) is often referred to and makes faying face that is of the same race or dissimilar metal make versus high motion by motor and hydraulic-driven, and faying face because of frictional heat reach mecystasis after implement pressurization, then brake rapidly, rely on inertia braking, realize metal to be welded and reliably connect.When metal to be welded is the workpiece of square structure, in friction welding process, there is strict demand to the orientation angle of workpiece, now relate to phase controlling.Usually electric mechanical is used to force the mode of location to carry out phase controlling to square cross to be welded at present, electric mechanical utilizes fixture block to block motor shaft when forcing location to be specific bit, stop the rotation to make motor shaft thus metal to be welded is stopped the rotation, and then realizing the metal location to welding.
When adopting friction welding (FW) welding Prebaked Anode In Aluminium Cell electric installation, because Prebaked Anode In Aluminium Cell electric installation belongs to the device of heavy in section, large inertia, Fig. 1 is the structural representation of anode conducting device, as illustrated in fig. 1 and 2, anode conducting device 10 comprises steel pawl 11 and aluminum guide 12, it be 130mm × 130mm and sectional area is the two profiles number of 145mm × 145mm that aluminum guide 12 comprises sectional area, wherein, sectional area is the quality of the aluminum guide 12 of 130mm × 130mm is 147Kg, and the quality of the steel pawl 11 coordinated with this aluminum guide 12 is 298Kg; Sectional area is the quality of the aluminum guide 12 of 145mm × 145mm is 183Kg, and the quality of the steel pawl 11 coordinated with this aluminum guide 12 is 363Kg.During welding, spindle motor output shaft is connected with steel pawl fixture, this steel pawl fixture firmly holds in the mouth folder steel pawl, driven by spindle motor and make steel pawl 11 High Rotation Speed, aluminum guide 12 is promoted by power set, gradually near steel pawl 11 until contact with steel pawl 11 and rub at contact surface, follow friction welding technological afterwards and steel pawl 11 and aluminum guide 12 welded together; When the such heavy in section of mode antianode electric installation using electric mechanical to force to locate, the device of large inertia position, needing to block motor shaft by fixture block within very short time makes motor shaft stop the rotation, cause fixture block can produce very large impact to motor shaft, easily motor is caused damage, also can affect the welding quality of friction welding (FW) simultaneously.When locating the anode conducting device of heavy in section, large inertia, electric mechanical forces the use of location to receive restriction.
Summary of the invention
In order to the motor solved owing to adopting friction welding (FW) electric mechanical to force the anode conducting device of locate mode on heavy in section, large inertia to occur in process easily damages, affects the problem of welding quality, the present invention proposes a kind of device for friction welding (FW) phase controlling, can carry out phase controlling to the anode conducting device of heavy in section, large inertia in friction welding process.
The device that the present invention is used for friction welding (FW) phase controlling comprises control unit, positioning unit and steel pawl fixture spindle motor, and described positioning unit is connected with described control unit and steel pawl fixture spindle motor respectively; Described control unit is used for sending positioning instruction to described positioning unit, and the rotating speed of described steel pawl fixture spindle motor, after receiving the positioning instruction that described control unit sends, controls to be zero realize phase controlling by described positioning unit simultaneously.
Described positioning unit is connected with position location unit, and this position location unit is periodically to described positioning unit feedback signal; On the disk of steel pawl fixture, direction was provided with cylindrical metal projection 12 o'clock; After described positioning unit receives positioning instruction, according to the torque and rotational speed signal that positioning unit before the temporal information before the unit feedback signal of described position location, combination exports, control the torque and rotational speed of steel pawl fixture spindle motor subsequent cycle, finally make to rotate to unit place, described position location through several week after date cylindrical metal projection, steel pawl fixture spindle motor rotating speed reduces to zero, realizes the phase controlling of steel pawl.
This device also comprises steel pawl information unit, this steel pawl information unit is connected with described control unit and described steel pawl fixture spindle motor decelerator rear end respectively, for gathering position and the velocity information of the steel pawl be connected with described steel pawl fixture spindle motor, and give described control unit, to make current location and the speed of described control unit determination steel pawl by this information feed back.
Described steel pawl information unit is absolute value encoder.
Described control unit is programmable logic controller (PLC).
Described positioning unit is frequency converter; Described position location unit is proximity switch.
Described control unit is connected with aluminum guide information unit, and this aluminum guide information unit gathers the displacement of aluminum guide and velocity information and feeds back to described control unit.
Described aluminum guide information unit is stay wire displacement sensor.
This device also comprises velocity feedback unit, this velocity feedback unit is connected with described positioning unit and described steel pawl fixture spindle motor decelerator front end respectively, improves the speed output accuracy of self and then auxiliary improve final phase controlling precision for positioning unit.
Described velocity feedback unit is incremental encoder.
The device that the present invention is used for friction welding (FW) phase controlling has following beneficial effect:
1. when using friction welding technological welding anode conducting device, positioning unit of the present invention can control the rotating speed of steel pawl fixture spindle motor, control unit sends positioning instruction to positioning unit, after positioning unit receives positioning instruction, according to the temporal information before the unit feedback signal of described position location, in conjunction with before positioning unit export torque and rotational speed signal, control the torque and rotational speed of steel pawl fixture spindle motor subsequent cycle, when finally making cylindrical metal projection rotate to unit place, position location, steel pawl fixture spindle motor rotating speed reduces to zero, complete the phase controlling of steel pawl, thus realize the phase controlling of antianode electric installation.Compared with forcing the mode of locating with electric mechanical, the present invention is used for the device of friction welding (FW) phase controlling owing to slowing down evenly, avoid when using fixture block the impact that motor shaft produces, be applicable to heavy in section, the fast phase of anode conducting device of large inertia controls, be less than 6 seconds positioning time and phase control error absolute value is less than 1 °.
2. steel pawl information unit gathers current location and the velocity information of steel pawl, control unit calculates the concrete angle of the current circle of the rotation number of turns and steel pawl place of tapping pawl according to this information, so control unit is before sending positioning instruction to positioning unit, first position and the velocity information of steel pawl is detected, before ensureing sending positioning instruction at every turn, steel pawl is in identical position and speed, improves the stability that the stability of steel pawl and aluminum guide quality of weld joint and aluminum guide shorten value.
3. aluminum guide information unit is for gathering displacement and the velocity information of aluminum guide, and by this information feed back to control unit, such aluminum guide information unit and control unit build position and speeds control closed loop, in conjunction with the output of the power set of control aluminum guide movement, finally reach the object improving strength of welded joint and stable shortening amount.
4. velocity feedback unit feeds back to positioning unit this rotary speed information for the rotating speed (being also the output speed of positioning unit) before gathering steel pawl fixture spindle motor reductor simultaneously, such velocity feedback unit and positioning unit build velocity feedback closed loop, the output accuracy of positioning unit can be improved, and then improve last phase controlling precision.
Accompanying drawing explanation
Fig. 1 is the structural representation of Prebaked Anode In Aluminium Cell electric installation;
Fig. 2 a is steel pawl fixture of the present invention, steel pawl adds with aluminum guide the schematic front view be connected man-hour;
Fig. 2 b is that the A of Fig. 2 a is to schematic diagram;
Fig. 3 is the structural representation of the present invention for the embodiment one of the device of friction welding (FW) phase controlling;
Fig. 4 is the workflow diagram of the device for friction welding (FW) phase controlling shown in Fig. 3;
Fig. 5 is the structural representation of the present invention for the embodiment two of the device of friction welding (FW) phase controlling;
Fig. 6 is the structural representation of the present invention for the embodiment three of the device of friction welding (FW) phase controlling.
Detailed description of the invention
The device of the present invention for friction welding (FW) phase controlling is introduced below in conjunction with accompanying drawing.
Embodiment one
As shown in Figure 3, the present embodiment comprises control unit 20, positioning unit 22, position location unit 23 and steel pawl fixture spindle motor 21 for the device of friction welding (FW) phase controlling.Control unit 20 is connected with positioning unit 22, for sending positioning instruction to positioning unit 22.Positioning unit 22 is connected with control unit 20 and steel pawl fixture spindle motor 21 respectively, and for controlling steel pawl fixture spindle motor 21, such as positioning unit 22 controls the torque and rotational speed of steel pawl fixture spindle motor 21 with the torque and rotational speed signal exported; Positioning unit 22 is also connected with position location unit 23, and position location unit 23 is periodically to positioning unit 22 feedback signal, and can be such as that steel pawl 11 often revolves and turns around, position location unit 23 feeds back a signal to positioning unit 22; Positioning unit 22 is after the positioning instruction receiving control unit 20 transmission, progressively reduce the rotating speed (simultaneously controlling torque) controlling steel pawl fixture spindle motor 21, the rotating speed (when receiving position location unit 23 signal the last time) of steel pawl fixture spindle motor 21 controls to be zero the most at last, realizes the phase controlling of steel pawl 11 simultaneously.
Wherein, control unit 20 is programmable logic controller (PLC) (Programmable Logic Controller, hereinafter referred to as PLC), and positioning unit 22 is frequency converter, and position location unit 23 is proximity switch.As shown in Figure 2 a and 2 b, steel pawl fixture 17 comprises clamp port 13 and disk 14, clamp port 13 is fixedly connected with disk 14, clamp port 13 clamps steel pawl 11, position location unit 23 is installed on pedestal 16, in friction welding process, disk 14 and clamp port 13 synchronous rotary under steel pawl fixture spindle motor 21 drives, on disk 14, direction was provided with cylindrical metal projection 15 12 o'clock, in disk 14 rotary course, cylindrical metal projection 15 often through position location unit 23 once, namely steel pawl 11 often revolves and turns around, position location unit 23 feeds back a signal to positioning unit 22.The effect of position location unit 23 is the standard setting points as phase controlling, after namely phase controlling starts, when final cylindrical metal projection 15 rotates to unit 23 position, position location, steel pawl fixture spindle motor 21 stops the rotation, and simultaneously steel pawl 11 has stopped the rotation phase controlling.
The workflow of the device for friction welding (FW) phase controlling of embodiment one is as shown in Figure 4, specific as follows:
Step S1: control unit 20 and positioning unit 22 establish a communications link, and can be communicated between control unit 20 with positioning unit 22 by fieldbus; Control unit 20 sends instruction can to positioning unit 22; Self-operating state can be sent to control unit 20 by positioning unit 22, with the running status making control unit 20 can monitor positioning unit 22.
Step S2: when needing location in friction welding process, control unit 20 sends positioning instruction to positioning unit 22, the positioning instruction that positioning unit 22 reception control unit 20 sends.
Step S3: utilize steel pawl 11 often to revolve and turn around, position location unit 23 feeds back the information of a signal to positioning unit 22, after positioning unit 22 receives positioning instruction, according to the torque and rotational speed signal that positioning unit 22 before the temporal information before unit 23 feedback signal of described position location, combination exports, positioning unit 22 calculates the torque and rotational speed signal of the output of next cycle positioning unit 22.The position that positioning unit 22 rotates to according to current steel pawl 11 and the torque and rotational speed signal that next cycle positioning unit 22 exports, when judging to receive the signal of position location unit 23 next time, whether the rotating speed of steel pawl fixture spindle motor 21 can reduce to zero, if the rotating speed of steel pawl fixture spindle motor 21 can reduce to zero, then reduce output speed gradually, control Driving Torque simultaneously, when making cylindrical metal projection 15 rotate to unit 23 place, position location, the rotating speed of steel pawl 11 is reduced to zero and is completed phase controlling; If when receiving the signal of position location unit 23 next time, the rotating speed of steel pawl fixture spindle motor 21 can not reduce to zero, then continue the rotating speed of reduction steel pawl fixture spindle motor 21 and re-start this step, until can by reducing output speed gradually, control Driving Torque simultaneously, when making cylindrical metal projection 15 rotate to unit 23 place, position location, the rotating speed of steel pawl 11 reduces to zero, to realize the braking location of steel pawl 11.Wherein, after starting location, usual cylindrical metal projection 15 is through position location unit 23 two to three times, and the rotating speed of steel pawl 11 just can reduce to zero.
Embodiment two
As shown in Figure 5, the present embodiment also comprises steel pawl information unit 24 and aluminum guide information unit 25 for the device of friction welding (FW) phase controlling.
Steel pawl information unit 24 is connected with control unit 20 and steel pawl fixture spindle motor 21 decelerator rear end respectively, steel pawl information unit 24 is for gathering current location and the velocity information of steel pawl 11, and by this information feed back to control unit 20, control unit 20 calculates the concrete angle of the current circle of the rotation number of turns and steel pawl 11 place of tapping pawl 11 according to the position of steel pawl 11 and velocity information, so control unit 20 is before sending positioning instruction to positioning unit 22, first the positional information of steel pawl 11 is detected, before ensureing sending positioning instruction at every turn, steel pawl 11 is in identical position, improve the stability that the stability of steel pawl 11 and aluminum guide 12 quality of weld joint and aluminum guide 12 shorten value.Wherein, steel pawl information unit 24 is absolute value encoder.
Aluminum guide information unit 25 is connected with control unit 20, for gathering displacement and the velocity information of aluminum guide 12, and by this information feed back to control unit 20, such aluminum guide information unit 25 builds position and speeds control closed loop with control unit 20, in conjunction with the output of the power set of control aluminum guide 12 movement, finally reach the object improving strength of welded joint and stable shortening amount.Wherein, aluminum guide information unit 25 is stay wire displacement sensor.
Embodiment three
As shown in Figure 6, the device that the present embodiment is used for friction welding (FW) phase controlling also comprises velocity feedback unit 26, and this velocity feedback unit 26 is connected with positioning unit 22, steel pawl fixture spindle motor 21 decelerator front end respectively.Velocity feedback unit 26 is for gathering the output speed of positioning unit 22 and this rotary speed information being fed back to positioning unit 22, so velocity feedback unit 26 and positioning unit 22 build velocity feedback closed loop, the positioning precision improving and control steel pawl fixture spindle motor 21 while improving positioning unit 22 output accuracy, can be assisted.Wherein, velocity feedback unit 26 is incremental encoder.
The phase controlling precision of the anode conducting device using the present invention to obtain can be checked by following experiments of measuring:
1. experimental subjects is: when the aluminum guide area of anode conducting device is 130mm × 130mm, and the steel pawl of its docking specification is 298Kg, selects aluminum guide and the steel pawl 30 groups of this parameter, hereinafter referred to as A group anode conducting device; When the aluminum guide area of anode conducting device is 145mm × 145mm, the steel pawl of its docking specification is 363Kg, selects aluminum guide and the steel pawl 30 groups of this parameter, hereinafter referred to as B group anode conducting device.First aft-loaded airfoil A group and B group anode conducting device on friction welding (FW) phase control device, often group machines the rear value of feedback according to steel pawl information unit (absolute value encoder), calculates the error of current phase controlling.
2. testing sensor: P+F PEPPERL FUCHS absolute value encoder PVM58N-011AGROBN-1416.
3. test philosophy and step:
(1) absolute value encoder selects PVM58N-011AGROBN-1416, this absolute value encoder can record steel pawl multi-turn rotation (14 powers of record 2 at most, namely record 16384 encloses at most, be 16383 circles in actual use), often enclose and (when steel pawl rotates 360 angle, send a 16 powers pulse of 2, namely send 65536 pulses, actual use in be 65535 pulses) information.PLC is communicated with this absolute value encoder by fieldbus, the information of record is sent to PLC and stores by this absolute value encoder, the information of this absolute value encoder record stores with double word form, high word contains lap information, low word contains this circle angle information, by reading the information of high word and low word, can the rotary position information of Real-time Obtaining steel pawl.
(2) before using the device being used for friction welding (FW) phase controlling automatically to process, the form sending out a high impulse to absolute value encoder by PLC makes it reset, PLC is after determining that the number of turns and the feedback information of umber of pulse often enclosed are zero, enable automatic processing program, to complete what friction of preorder according to technological parameter at the device for friction welding (FW) phase controlling after, then complete phase controlling and follow-up processing link.
(3) data logging software in computer can obtain the information of the absolute value encoder record that PLC stores through communication mode, and interpretation angular error can be obtained by the numerical value analyzed in the low word of acquisition.In the double word that setting computer obtains, the value of low word is R0, and the phase control error of current processing anode conducting device is:
1. setting is as R0>65535/2 ≈ 65534/2=32767, and the error calculation formula namely as R0>32767 is (this time error is negative value, unit be °):
2. setting is as R0≤65535/2 ≈ 65534/2=32767, and the error calculation formula namely when R0≤32767 be (this time error is):
(4) acquisition of positioning time: the time span that the time that the PLC that can obtain according to the data logging software in computer starts to locate no longer changes to the value of absolute value encoder is foundation, if this value is Ts.
4. measurement result:
The present invention is used to process A group anode conducting device, steel pawl current circle angular position information R0, phase control error value Δ α and the phase control error absolute value of table 1 for obtaining after machining | Δ α |:
Table 1
In like manner, the present invention is used to process B group anode conducting device, steel pawl current circle angular position information R0, phase control error value Δ α and the phase control error absolute value of table 2 for obtaining after machining | Δ α |:
Table 2
5. experiment conclusion:
Use A group and the B group anode conducting device of the present invention's processing, by the information parameter of analysis absolute value encoder record and correlation time information, determine that positioning time is all less than 6s, meet friction welding (FW) welding process requirement; And simultaneously the welding phase controlling precision absolute value error of steel pawl and aluminum guide is less than 1 °, thus prove the present invention can meet potroom produce in the installation that proposes for phase problem of antianode electric installation and production requirement index.
Claims (10)
1. for a device for friction welding (FW) phase controlling, it is characterized in that, comprise control unit, positioning unit and steel pawl fixture spindle motor, described positioning unit is connected with described control unit and steel pawl fixture spindle motor respectively; Described control unit is used for sending positioning instruction to described positioning unit, and the rotating speed stating steel pawl fixture spindle motor, after receiving the positioning instruction that described control unit sends, controls to be zero complete phase controlling by described positioning unit simultaneously.
2. the device for friction welding (FW) phase controlling according to claim 1, is characterized in that, described positioning unit is connected with position location unit, and this position location unit is periodically to described positioning unit feedback signal; On the disk of steel pawl fixture, direction was provided with cylindrical metal projection 12 o'clock; After described positioning unit receives positioning instruction, according to the torque and rotational speed signal that positioning unit before the temporal information before the unit feedback signal of described position location, combination exports, control the torque and rotational speed of steel pawl fixture spindle motor subsequent cycle, finally make to rotate to unit place, described position location through several week after date cylindrical metal projection, steel pawl fixture spindle motor rotating speed is zero, realizes the phase controlling of steel pawl.
3. the device for friction welding (FW) phase controlling according to claim 2, it is characterized in that, this device also comprises steel pawl information unit, this steel pawl information unit is connected with described control unit and described steel pawl fixture spindle motor decelerator rear end respectively, for gathering position and the velocity information of the steel pawl be connected with described steel pawl fixture spindle motor, and give described control unit, to make current location and the speed of described control unit determination steel pawl by this information feed back.
4. the device for friction welding (FW) phase controlling according to claim 3, is characterized in that, described steel pawl information unit is absolute value encoder.
5. the device for friction welding (FW) phase controlling according to any one of claim 1-4, is characterized in that, described control unit is programmable logic controller (PLC).
6. the device for friction welding (FW) phase controlling according to any one of claim 1-4, is characterized in that, described positioning unit is frequency converter; Described position location unit is proximity switch.
7. the device for friction welding (FW) phase controlling according to any one of claim 1-4, it is characterized in that, described control unit is connected with aluminum guide information unit, and this aluminum guide information unit gathers the displacement of aluminum guide and velocity information and feeds back to described control unit.
8. the device for friction welding (FW) phase controlling according to claim 7, is characterized in that, described aluminum guide information unit is stay wire displacement sensor.
9. the device for friction welding (FW) phase controlling according to any one of claim 1-4, it is characterized in that, this device also comprises velocity feedback unit, this velocity feedback unit is connected with described positioning unit and described steel pawl fixture spindle motor decelerator front end respectively, improves the speed output accuracy of self and then auxiliary improve final phase controlling precision for positioning unit.
10. the device for friction welding (FW) phase controlling according to claim 9, is characterized in that, described velocity feedback unit is incremental encoder.
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| CN201510235921.0A CN104785919B (en) | 2015-05-08 | 2015-05-11 | Device for friction welding phase control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112578828A (en) * | 2019-09-30 | 2021-03-30 | 张玮 | Temperature measuring method and device and heating equipment |
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| CN102500914A (en) * | 2011-11-03 | 2012-06-20 | 哈尔滨正晨焊接切割设备制造有限公司 | Hydraulic servo control phase friction welder and welding method |
| CN103586577A (en) * | 2013-12-02 | 2014-02-19 | 兰州连城铝业有限责任公司 | Friction welding method of aluminum guide rod and steel claw |
| CN104384704A (en) * | 2014-10-22 | 2015-03-04 | 江苏锐成机械有限公司 | All-electric servo single-head phase friction welding machine |
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2015
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| JPH09174260A (en) * | 1995-12-26 | 1997-07-08 | Toyota Motor Corp | Friction pressure welding method and device therefor |
| CN2780400Y (en) * | 2005-03-30 | 2006-05-17 | 长春数控机床有限公司 | Full electric friction welding machine |
| CN102500914A (en) * | 2011-11-03 | 2012-06-20 | 哈尔滨正晨焊接切割设备制造有限公司 | Hydraulic servo control phase friction welder and welding method |
| CN103586577A (en) * | 2013-12-02 | 2014-02-19 | 兰州连城铝业有限责任公司 | Friction welding method of aluminum guide rod and steel claw |
| CN104384704A (en) * | 2014-10-22 | 2015-03-04 | 江苏锐成机械有限公司 | All-electric servo single-head phase friction welding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112578828A (en) * | 2019-09-30 | 2021-03-30 | 张玮 | Temperature measuring method and device and heating equipment |
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