CN110202253A - A kind of agitating friction weldering clamping device and three-dimensional welding equipment - Google Patents
A kind of agitating friction weldering clamping device and three-dimensional welding equipment Download PDFInfo
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- CN110202253A CN110202253A CN201910610324.XA CN201910610324A CN110202253A CN 110202253 A CN110202253 A CN 110202253A CN 201910610324 A CN201910610324 A CN 201910610324A CN 110202253 A CN110202253 A CN 110202253A
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- clamping device
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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
- B23K20/1245—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 characterised by the apparatus
-
- 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
- B23K20/1245—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 characterised by the apparatus
- B23K20/126—Workpiece support, i.e. backing or clamping
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- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The embodiment of the invention discloses a kind of agitating friction weldering clamping device and three-dimensional welding equipment, belong to agitating friction welding technology field, the workpiece that clamping device can be welded to each other two carries out stable clamping, and after the completion of welding, workpiece can be squeezed outward by squeezing disk, so that workpiece is detached from the first locating shaft and the second locating shaft, solves the problems, such as that workpiece caused by mechanical stress can not be deviate from；Clamping device is set on existing planer-type two dimension Multi Role Aircraft bed apparatus, clamping device can be under to piece-holder state, realization is moved along bed piece length direction and along clamping device central axes circular-rotation, to realize the three-dimensional welding function of workpiece, the technological gap of three-dimensional welding has been filled up.Of the invention improves two machine tools of existing planer-type by the way that clamping device is arranged, and realizes three-dimensional welding function, expands application range, improves the working efficiency and precision of workpiece welding.
Description
Technical field
The present embodiments relate to friction welding technology fields, and in particular to a kind of agitating friction weldering clamping device and three-dimensional weldering
Connect equipment.
Background technique
Agitating friction weldering is the advanced friction welding technology of an innovation, is known as " the environmentally protective weldering of high quality, low cost
Connection technology ".Compared with traditional welding method, agitating friction soldering set has weld strength height, welding point flat appearance, postwelding residual
The advantages that residue stress is small, deformation is small, pollution-free, energy-efficient.
The straight line of alloy product welds and curve welding quality is more demanding, it is desirable that face of weld is smooth, good airproof performance,
Microstructure is uniform, does not allow gas hole defect occur, therefore the higher alloy product welding of quality requirement mostly uses greatly stirring
Friction welding (FW).
However, at present for the exploitation and application of planer-type two dimension Multi Role Aircraft bed apparatus realization three-dimensional welding also in sky
The design function of white state, Multi Role Aircraft bed apparatus two-dimentional first is relatively simple, can only realize that plane curve welds, welding equipment
Do not have the lateral periphery Friction Stir Welding processing of three-dimensional welding function, especially cylindrical workpiece, cannot achieve, make at all
At the limitation of welding equipment function.If designing the novel curve rotating welding work of three-dimensional welding processing by two-dimensional device
Skill equipment, can effectively break through this difficulty, fill up three-dimensional curve welding blank using two-dimensional device.
Summary of the invention
For this purpose, the embodiment of the present invention provides a kind of agitating friction weldering clamping device and three-dimensional welding equipment, it is existing to solve
Technical problem present in technology.
To achieve the goals above, the embodiment of the present invention provides the following technical solutions:
According to a first aspect of the embodiments of the present invention, a kind of agitating friction weldering clamping device is provided, including power mechanism,
First clamping device, the second clamping device and pedestal, the power mechanism, the first clamping device and the second clamping device are successively solid
Surely it is mounted on the base, the power mechanism is sequentially connected first clamping device, first clamping device and the
Two clamping devices are oppositely arranged.
Further, first clamping device is squeezed including the first stable disk, the first support frame, the first support plate, first
Cylinder pressure, first squeeze disk and the first locating shaft, and first stable disk, the first support plate and the first extruding disk are sequentially coaxially set to
On first locating shaft, first stable disk is fixedly connected with first locating shaft, first support plate and first
It squeezes disk and first locating shaft is rotatablely connected, first support plate lower part outer rim is fixed with first support frame upper end
Connection, first support frame lower end are fixedly connected with the base, and multiple first squeeze cylinders are circumferentially uniformly fixed on institute
The first support disc side is stated, the output shaft of first squeeze cylinder slides through first support plate and squeezes with described first
Disc side offsets.
Further, second clamping device is squeezed including the second stable disk, the second support frame, the second support plate, second
Cylinder pressure, second squeeze disk, the second locating shaft, fixed frame, sliding rail and slide, second stable disk, the second support plate and second
It squeezes disk to be sequentially coaxially set on second locating shaft, second stable disk is fixedly connected with second locating shaft, institute
The second support plate and second is stated to squeeze disk and second locating shaft and be rotatablely connected, second support plate lower part outer rim with it is described
First support frame upper end is fixedly connected, second support frame lower end and slide upper end sliding contact, and multiple described second
Squeeze cylinder is circumferentially uniformly fixed on the second support disc side, and the output shaft of second squeeze cylinder slides through described second
Support plate simultaneously offsets with the second stable disk one side, and second stable disk another side is equipped with fixed frame, described solid
Determine frame lower end to be fixedly connected with the slide, the sliding rail is fixed at the pedestal upper surface, and the slide sliding is set to institute
It states on sliding rail.
It further, further include mounting rack and driving cylinder, the mounting rack is fixed on the pedestal, the installation
It is set up in the extreme, the driving cylinder is laterally set on the mounting rack, the driving boom end of the driving cylinder
It is fixedly connected with the fixed frame, the drive rod is coaxially set with second locating shaft.
Further, the power mechanism includes variable-frequency motor, headstock and reduction gearbox, the variable-frequency motor transmission connection
The headstock, reduction gearbox described in the headstock driving motor, the reduction gearbox are sequentially connected first stable disk.
It further, further include slipper bracket, the slipper bracket is fixed at the pedestal upper end, the slipper bracket
Between first clamping device and the second clamping device.
It further, further include hydraulic station, first squeeze cylinder and the second squeeze cylinder pass through hydraulic described in piping connection
It stands.
According to a second aspect of the embodiments of the present invention, a kind of three-dimensional welding equipment is provided, using stirring as described above
Friction welding (FW) clamping device further includes bed piece, driving device, platen, driving guide rail, drives lead screw, a lathe left side vertical
Column, lathe right column, machine tool beam, the first power head sub-unit and the second power head sub-unit, the driving device fixation are set
In the rear end of the bed piece, the bed piece upper end is equipped with driving guide rail and driving lead screw, the driving lead screw end
Be sequentially connected the driving device, and the platen is set on the driving guide rail along driving lead screw sliding, described
Lathe left column is set to the left side of the bed piece, and the lathe right column is set to the right side of the bed piece, the machine
Bed crossbeam is across above the bed piece, and the machine tool beam both ends are vertical with the lathe left column and the lathe right side respectively
Column upper end is fixedly connected, and the first power head sub-unit and the second power head sub-unit slide laterally set on the lathe cross
Liang Shang, the agitating friction weldering clamping device are fixed on the platen.
It further, further include machine tool beam upper rail, machine tool beam lower guideway, first on the machine tool beam
Power head second direction lead screw, the first power head second direction driving motor, the second power head second direction lead screw and second are dynamic
Power head second direction driving motor, the machine tool beam upper rail are set to the machine tool beam upper end, lead under the machine tool beam
Rail is set to the machine tool beam lower end, and the first power head second direction lead screw is set to below the machine tool beam upper rail,
The second power head second direction lead screw is set to above the machine tool beam lower guideway, the first power head second direction silk
Thick stick left end transmission connection the first power head second direction driving motor, the second power head second direction lead screw right end pass
Dynamic connection the second power head second direction driving motor, the first power head sub-unit is along first power head second
Lead screw sliding in direction is set on the machine tool beam upper rail and machine tool beam lower guideway, and the second power head sub-unit is along institute
The sliding of the second power head second direction lead screw is stated to be set on the machine tool beam lower guideway and machine tool beam upper rail.
Further, the first power head sub-unit is identical as the second power head sub-unit structure, second power
Head sub-unit includes spindle motor, backboard sub-unit, backboard third direction driving motor and stirring-head, and the backboard sub-unit is set
In the second power head sub-unit rear portion, the backboard third direction driving motor is set to the top of the backboard sub-unit,
The backboard sub-unit is slidably connected with machine tool beam upper rail and machine tool beam lower guideway, and it is dynamic that the spindle motor is set to second
Power head sub-unit front, the backboard third direction driving motor output shaft is connect with the spindle motor outer wall lead screw, described
Spindle motor lower end and stirring-head are sequentially connected.
The embodiment of the present invention has the advantages that
The present invention be provided with the matching used clamping device of agitating friction soldering equipment, to cylindric Al alloy parts
When lateral periphery Friction Stir Welding processing, stable holding is carried out to two cylindric Al alloy parts being mutually butted, is guaranteed
Alignment in welding process；Be provided with simultaneously mutually matched first squeeze cylinder and first squeeze disk and the second squeeze cylinder and
Second squeezes disk, workpiece can be made to be detached from the first locating shaft or second by squeeze to workpiece outward after the completion of welding
Locating shaft facilitates workpiece to deviate from from clamping device to reduce the mechanical stress that workpiece after processing generates；
Clamping device is welded using agitating friction as above, is used cooperatively with existing planer-type two dimension Multi Role Aircraft bed apparatus,
It is specifically located on bed piece, to increase the third axis of planer-type two dimension Multi Role Aircraft bed apparatus, clamping device can
Under to piece-holder state, realization moves along bed piece length direction and along clamping device central axes circular-rotation, thus
The three-dimensional welding function of realizing workpiece, has filled up technological gap.
Of the invention improves two machine tools of existing planer-type by the way that clamping device is arranged, and realizes three-dimensional weldering
Connection function expands application range, improves the working efficiency of workpiece welding.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
Fig. 1 is that the agitating friction that the embodiment of the present invention 1 provides welds clamping device main view；
Fig. 2 is the main structure figure for the three-dimensional welding equipment that the embodiment of the present invention 2 provides；
Fig. 3 is the left view structure chart for the three-dimensional welding equipment that the embodiment of the present invention 2 provides；
In figure:
1 power mechanism；101 variable-frequency motors；102 headstocks；103 reduction gearboxes；2 first clamping devices；201 first stablize
Disk；202 first support frames；203 first support plates；204 first squeeze cylinders；205 first squeeze disk；206 first locating shafts；3
Two clamping devices；301 second stable disks；302 second support frames；303 second support plates；304 second squeeze cylinders；305 second squeeze
Platen；306 second locating shafts；307 fixed frames；308 sliding rails；309 slides；4 pedestals；5 mounting racks；6 driving cylinders；7 sliding supports
Frame；8 hydraulic stations；9 bed pieces；10 driving devices；11 platens；12 driving guide rails；13 driving lead screws；A 14 lathe left sides are vertical
Column；15 lathe right columns；16 machine tool beams；17 first power head sub-units；18 second power head sub-units；181 spindle motors；
182 backboard sub-units；183 backboard third direction driving motors；184 stirring-heads；19 machine tool beam upper rails；Under 20 machine tool beams
Guide rail；21 first power head second direction lead screws；22 first power head second direction driving motors；23 second power head second party
To lead screw；24 second power head second direction driving motors.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Embodiment 1
According to a first aspect of the embodiments of the present invention, it is the use for cooperating agitating friction soldering equipment, especially makes three-dimensional welding
The use of equipment specifically provides a kind of agitating friction weldering clamping device, such as Fig. 1, including power mechanism 1, the first clamping device
2, the second clamping device 3 and pedestal 4, the power mechanism 1, the first clamping device 2 and the second clamping device 3 are successively fixedly mounted
On the pedestal 4, the power mechanism 1 is sequentially connected first clamping device 2, and power mechanism 1 is the first clamping device 2
The rotation of cylindrical aluminium alloy workpiece is driven to provide power, the first clamping device 2 for being drives workpiece to carry out circular-rotation.Described
One clamping device 2 and the second clamping device 3 are oppositely arranged, and when in use, cylindrical aluminium alloy workpiece are placed on the first clamping
Between mechanism 2 and the second clamping device 3, realized by the docking of the first clamping device 2 and the second clamping device 3 to the steady of workpiece
Clamp is held.
In this embodiment, specifically, first clamping device 2 include the first stable disk 201, the first support frame 202,
First support plate 203, the first squeeze cylinder 204, first squeeze disk 205 and the first locating shaft 206.First stable disk 201,
One support plate 203 and the first extruding disk 205 are disc-shaped structures, and circular hole is arranged in middle part, and the first locating shaft 206 is facilitated to wear
If specifically, first stable disk 201, the first support plate 203 and first squeeze disk 205 sequentially coaxially set on described first
On locating shaft 206.First stable disk 201 is fixedly connected with first locating shaft 206, under the drive of power mechanism 1, the
One stable disk 201 and the first locating shaft 206 carry out circular motion；And first support plate 203 and first squeeze disk 205 with
First locating shaft 206 is rotatablely connected, and the 203 lower part outer rim of the first support plate and 202 upper end of the first support frame are solid
Fixed connection, 202 lower end of the first support frame are fixedly connected with the pedestal 4, so that the first support frame 202 is by the first support plate
203 are fixed, and carry out stablizing support to the first support plate 203, realize the stable rotation of the first locating shaft 206.It is multiple described
First squeeze cylinder 204 is circumferential to be uniformly fixed on 203 side of the first support plate, and the output shaft of first squeeze cylinder 204 is sliding
It is dynamic to offset across first support plate 203 and with first extruding, 205 side of disk.Specifically, the first squeeze cylinder 204 is arranged
For 6 hydraulic cylinders, uniformly it is fixed on centered on the central axis of the first support plate 203 on the side wall of first support plate 203, the
The output shaft of one squeeze cylinder 204 can stretch in the first support plate 203, the output shaft end and first of the first squeeze cylinder 204
It squeezes disk 205 to offset, to ensure that the stabilization that the first extruding disk 205 offsets with workpiece end, further ensure to workpiece
The stability of clamping.
For the quality for guaranteeing Friction Stir Welding, need to make the first locating shaft 206 and cylindrical workpiece internal diameter phase of setting
When to ensure that the alignment of two workpiece in clamping device drive workpiece rotation process.In process, first
Mechanical stress is generated between locating shaft 206 and workpiece inner wall, it is difficult to be taken off from the first locating shaft 206.First be arranged squeezes
Cylinder 204 and first squeezes disk 205, protruding by 204 output shaft of the first squeeze cylinder, squeezes the first extruding disk 205,
So that first squeezes disk 205 along the generation displacement of the first locating shaft 206, further workpiece end is squeezed, workpiece is first
It squeezes and generates displacement relative to the first locating shaft 206 under the squeezing action of disk 205, so that workpiece is from the first locating shaft 206
On take off, process complete.
In this embodiment, specifically, second clamping device 3 include the second stable disk 301, the second support frame 302,
Second support plate 303, the second squeeze cylinder 304, second squeeze disk 305, the second locating shaft 306, fixed frame 307, sliding rail 308 and slide
Seat 309, second stable disk 301, the second support plate 303 and the second extruding disk 305 are all made of disc-shaped structure, with the first folder
It is corresponding to hold associated components in mechanism 2.Specifically, second stable disk 301, the second support plate 303 and second squeeze disk 305 according to
It is secondary that with being located on second locating shaft 306, second stable disk 301 is fixedly connected with second locating shaft 306,
When first clamping device 2 and the second clamping device 3 step up workpiece simultaneously, under the drive of the first clamping device 2, the second stable disk
301 and second locating shaft 306 both circumferentially rotate.Second support plate 303 and second squeezes disk 305 and second positioning
Axis 306 is rotatablely connected, and the 303 lower part outer rim of the second support plate is fixedly connected with 202 upper end of the first support frame, and second
Support 302 generates support effect to the second support plate 303, and 302 lower end of the second support frame and 309 upper end of slide are slided
Contact, in use, the second support frame 302 is able to drive the second support plate 303 and moves axially along the second locating shaft 306.
Multiple second squeeze cylinders 304 are circumferential to be uniformly fixed on 303 side of the second support plate, and described second squeezes
The output shaft of cylinder 304 slides through second support plate 303 and offsets with 301 one side of the second stable disk, specifically,
Second squeeze cylinder 304 is set as 6 hydraulic cylinders, is uniformly fixed on second centered on the central axis of the second support plate 303
On the side wall of support plate 303, the output shaft of the second squeeze cylinder 304 can stretch in the second support plate 303, the second squeeze cylinder 304
Output shaft end offset with the second stable disk 301.In use, the output shaft end and the second stable disk of the second squeeze cylinder 304
After 301 push against, so that the second support plate 303 offsets with the second extruding disk 305, the second extruding disk 305 and work end ensure that
The stabilization that portion offsets further ensures the stability to piece-holder.
For the quality for guaranteeing Friction Stir Welding, need to make the second locating shaft 306 and cylindrical workpiece internal diameter phase of setting
When to ensure that the alignment of two workpiece in clamping device drive workpiece rotation process.In process, second
Mechanical stress is generated between locating shaft 306 and workpiece inner wall, it is difficult to be taken off from the second locating shaft 306.Second be arranged squeezes
Cylinder 304, the second stable disk 301 and second squeeze disk 305, protruding by 304 output shaft of the second squeeze cylinder, stablize to second
Disk 301 is squeezed, so that the second support plate 303, which reversely squeezes disk 305 to second, generates squeezing action, second squeezes disk 305
Displacement is generated along the second locating shaft 306, further workpiece end is squeezed, the extruding that workpiece squeezes disk 305 second is made
Displacement is generated relative to the second locating shaft 306 under, so that workpiece is taken off from the second locating shaft 306, process is complete
At.
Since the first clamping device 2 is fixedly mounted on slide 309, in order to realize the first clamping device 2 and second
To the clamping of workpiece between clamping device 3, needs to slide the second clamping device 3 and be docked with the first clamping device 2.Specifically
, 301 another side of the second stable disk is equipped with fixed frame 307, and 307 lower end of fixed frame and the slide 309 are solid
Fixed connection, fixed frame 307 are that the second clamping device 3 provides fixed support on slide 309, and the sliding rail 308 is fixed at institute
4 upper surface of pedestal is stated, the sliding of slide 309 is set on the sliding rail 308.Therefore, when in use, the second clamping device 3 is logical
It crosses slide 309 to slide on sliding rail 308, realizes the docking of the second clamping device 3 and the first clamping device 2.
It further include mounting rack 5 and drive further to realize automatic sliding of second clamping device 3 on sliding rail 308
It takes offence cylinder 6, the mounting rack 5 is fixed on the pedestal 4, and the mounting rack 5 is set to 308 end of sliding rail, the drive
Cylinder 6 of taking offence laterally is set on the mounting rack 5, and the driving boom end of the driving cylinder 6 is fixedly connected with the fixed frame 307,
The drive rod is coaxially set with second locating shaft 306.In use, when needing the first clamping device 2 and the second clamping
When mechanism 3 clamps workpiece, by driving the drive rod of cylinder 6 that slide 309 is pushed to slide along sliding rail 308, make the second folder
Mechanism 3 is held close to the first clamping device 2, and when use finishes and needs workpiece from the first clamping device 2 and the second clamping machine
When taking off on structure 3, by driving the drive rod of cylinder 6 that slide 309 is driven to slide along sliding rail 308, make the second clamping device 3 gradually
Far from the first clamping device 2.
In this embodiment, power mechanism 1 is that the first clamping device 2 provides rotate driving power.Specifically, the engine
Structure 1 includes variable-frequency motor 101, headstock 102 and reduction gearbox 103, and the variable-frequency motor 101 is sequentially connected the headstock 102,
Power head, 101 output shaft of variable-frequency motor transmission connection power head, to realize rotatory force are set in headstock 102.The power
Reduction gearbox 103 described in 102 driving motor of case, specifically, decelerating motor is arranged in reduction gearbox 103, the transmission of reduction gearbox 103 connects
First stable disk 201 is connect, therefore, by decelerating motor the first stable disk 201 of transmission connection in reduction gearbox 103, is driven
Stable disk axially rotates.
It further include slipper bracket 7 further to realize the alignment in workpiece welding process, the slipper bracket 7
It is fixed at 4 upper end of pedestal, the slipper bracket 7 is set between first clamping device 2 and the second clamping device 3.
Specifically, 7 lower end of slipper bracket is pillar, upper end is an arc support, is consolidated in the middle part of the lower end of arc support with pillar upper end
Fixed connection, this arc support are provided with roller structure along the laterally setting of pedestal 4 in arc support.When in use, sliding support
Frame 7 carries out workpiece to stablize support, will not shift in stir friction welding process, to ensure that the same of welding workpiece
Axis.More optimizedly slipper bracket 7 is arranged to two workpiece docking and is supported.
In this embodiment, the first above-mentioned squeeze cylinder 204 and the second squeeze cylinder 304 are all made of hydraulic cylinder structure, into one
Step ground, further includes hydraulic station 8, and first squeeze cylinder 204 and the second squeeze cylinder 304 pass through hydraulic station 8 described in piping connection.?
In use, providing high pressure oil to the first squeeze cylinder 204 and the second squeeze cylinder 304 by hydraulic station 8, the first squeeze cylinder 204 is realized
With stretching for 304 output shaft of the second squeeze cylinder.
This agitating friction weld clamping device use process is as follows:
It in this embodiment, is welded by agitating friction and two workpiece is welded and fixed, flange is arranged in the first workpiece end
Structure, this flanged structure are arranged along the first thickness of workpiece direction annular, and second workpiece end is provided with corresponding with flanged structure
Groove structure then welded after being docked by the groove structure and flanged structure of the first workpiece and second workpiece.In agitating friction
Before welding, workpiece to be connected is gripped by clamping device, the specific steps are as follows:
Firstly, the first workpiece first end is set on the first locating shaft 206 and at horizontality, the first workpiece at this time
The second end ride upon 7 upper end of slipper bracket with flanged structure, second workpiece is had to one end and first of groove structure
The docking of workpiecc lug structure one end, so that the first workpiece and second workpiece junction are bonded to each other, the first workpiece and second at this time
Workpiece coaxial arrangement；
Secondly, driving 6 output shaft of cylinder is protruding and the second clamping device 3 on slide 309 is pushed to press from both sides towards first
It is mobile to hold mechanism 2, the second locating shaft 306 is gradually inserted in the inner cavity of second workpiece end, and second squeeze 305 end face of disk with
Driving cylinder 6 is closed after the contact of second workpiece end, the first workpiece and the first extruding 205 end face of disk also contact at this time；
Then, hydraulic station 8 is that the first squeeze cylinder 204 and the second squeeze cylinder 304 supply high pressure oil, at this point, the first squeeze cylinder
204 output shaft squeezes disk 205 to first and pushes against, and the first extruding disk 205 carries out extruding abutting to the first workpiece；Meanwhile second
The output shaft of squeeze cylinder 304 pushes against the second stable disk 301, and the second support plate 303 squeezes second and squeezes disk 305, and second squeezes
Disk 305 carries out extruding abutting to second workpiece, thus pass through the cooperation of the first clamping device 2 and the second clamping device 3, realization pair
The stable holding of first workpiece and second workpiece；
Welding process: the stirring-head 184 of agitating friction weldering extend into the junction of the first workpiece and second workpiece, moves simultaneously
Force mechanisms 1 drive the first locating shaft 206 rotation on the first clamping device 2, so that the first workpiece and second workpiece do circle
Week rotation, and during circular-rotation, realize the connection of the first workpiece and second workpiece；
Finally, hydraulic station 8 is that the first squeeze cylinder 204 and second squeezes after the completion of the first workpiece and second workpiece welding
304 pressure release of cylinder reduces the first extruding disk 205 and second and squeezes disk 305 to the extrusion stress of workpiece.Cylinder 6 is driven to drive the
Two clamping devices 3 move back, and then, hydraulic station 8 supplies high pressure oil to the first squeeze cylinder 204 and the second squeeze cylinder 304, push welding
Workpiece is taken off from the first locating shaft 206 and the second locating shaft 306 afterwards, removes welded workpiece, completes welding process.
This matching used clamping device of agitating friction soldering equipment stirs on the lateral periphery to cylindric Al alloy parts
When friction welding is processed, stable holding is carried out to two cylindric Al alloy parts being mutually butted, is guaranteed in welding process
Alignment；It is provided with mutually matched first squeeze cylinder 204 and first simultaneously and squeezes disk 205 and the second squeeze cylinder 304 and the
Two squeeze disks 305, can after the completion of welding, by outward to workpiece carry out squeeze make workpiece be detached from the first locating shaft 206 or
Second locating shaft 306 facilitates workpiece to deviate from from clamping device to reduce the mechanical stress that workpiece after processing generates.
Embodiment 2
According to a second aspect of the embodiments of the present invention, a kind of three-dimensional welding equipment is provided, using stirring as described above
Friction welding (FW) clamping device is specifically arranged agitating friction weld clip as above on existing planer-type two dimension Multi Role Aircraft bed apparatus and holds
Device increases the third axis of planer-type two dimension Multi Role Aircraft bed apparatus, realizes three-dimensional welding function.Specifically, such as Fig. 2 and 3,
It further include bed piece 9, driving device 10, platen 11, driving guide rail 12, driving lead screw 13, lathe left column 14, machine
Bed right column 15, machine tool beam 16, the first power head sub-unit 17 and the second power head sub-unit 18.The driving device 10 is solid
Surely it is set to the rear end of the bed piece 9,9 upper end of bed piece is equipped with driving guide rail 12 and driving lead screw 13, the drive
Dynamic 13 end of the lead screw transmission connection driving device 10, the platen 11 are set to institute along the driving lead screw 13 sliding
It states on driving guide rail 12, i.e., drives driving lead screw 13 to rotate by driving device 10, so that platen 11 is led along driving
Rail 12 and slide, and the agitating friction weldering clamping device be fixed on the platen 11 so that stirring rub
Wiping weldering clamping device can slide back and forth with platen 11, to adjust workpiece clamped by agitating friction weldering clamping device
Position facilitates stirring-head 184 to weld workpiece.This three-dimensional welding equipment body is planer type structure, specifically, the machine
Bed left column 14 is set to the left side of the bed piece 9, and the lathe right column 15 is set to the right side of the bed piece 9, institute
Machine tool beam 16 is stated across above the bed piece 9, and 16 both ends of the machine tool beam respectively with the lathe left column
14 are fixedly connected with 15 upper end of lathe right column.The first power head sub-unit 17 and the second power head sub-unit 18 are laterally
Sliding is set on the machine tool beam 16, when in use, using the first power head sub-unit 17 or the second power head sub-unit 18
One of be stirred friction welding, it is sliding along machine tool beam 16 by the first power head sub-unit 17 or the second power head sub-unit 18
Dynamic, after sliding in place, stirring-head 184 realizes the welding to workpiece.
In this embodiment, the first power head sub-unit 17 and the second power head sub-unit 18 are along setting in lathe
The guide rail of crossbeam 16 carries out movement, further includes machine tool beam upper rail 19, machine on the machine tool beam 16 specifically
Bed crossbeam lower guideway 20, the first power head second direction lead screw 21, the first power head second direction driving motor 22, the second power
Head second direction lead screw 23 and the second power head second direction driving motor 24, the machine tool beam upper rail 19 are set to the machine
16 upper end of bed crossbeam, the machine tool beam lower guideway 20 are set to 16 lower end of machine tool beam, the first power head second party
It is set to 19 lower section of machine tool beam upper rail to lead screw 21, the second power head second direction lead screw 23 is set to the lathe
20 top of crossbeam lower guideway, specifically, being arranged the first power head second direction lead screw 21 in the second power head second direction silk
The top of thick stick 23.First power head second direction lead screw, 21 left end transmission connection the first power head second direction driving
Motor 22,23 right end of the second power head second direction lead screw transmission connection the second power head second direction driving motor
24, the first power head sub-unit 17 is set on the machine tool beam along the first power head second direction lead screw 21 sliding
On guide rail 19 and machine tool beam lower guideway 20, the second power head sub-unit 18 is along the second power head second direction lead screw
23 slidings are set on the machine tool beam lower guideway 20 and machine tool beam upper rail 19.Therefore, by being led on setting machine tool beam
Rail 19 and machine tool beam lower guideway 20 are the first power head sub-unit 17 and the second power head sub-unit 18 on machine tool beam 16
It horizontally slips and provides guiding, to realize the first power head sub-unit 17 and the second power head sub-unit 18 in bed piece 9
Lateral position is adjusted, and is determined Friction Stir Welding position, is realized the accurate welding of workpiece.
In this embodiment, further, the first power head sub-unit 17 and 18 structure of the second power head sub-unit
It is identical, in use, area only is carried out to the output power size of the first power head sub-unit 17 and the second power head sub-unit 18
Point, the needs of different-thickness work pieces process are adapted to, but working method is identical.Wherein it is introduced with the second power head sub-unit 18
Illustrate:
The second power head sub-unit 18 includes spindle motor 181, backboard sub-unit 182, the driving of backboard third direction
Motor 183 and stirring-head 184, the backboard sub-unit 182 are set to 18 rear portion of the second power head sub-unit, as shown in the figure
, backboard sub-unit 182 realizes that lead screw is connect with the second power head second direction lead screw 23, the backboard sub-unit 182 and machine
Bed crossbeam upper rail 19 and machine tool beam lower guideway 20 are slidably connected, and drive the second power head point total by backboard sub-unit 182
It is moved at 18 along the second power head second direction lead screw 23.The backboard third direction driving motor 183 is set on the backboard point
The top of assembly 182, and backboard third direction driving motor 183 is fixedly connected with backboard sub-unit 182, and backboard third party
To driving motor 183 output shaft straight down, the spindle motor 181 be set to 18 front of the second power head sub-unit, it is described
183 output shaft of backboard third direction driving motor is connect with the 181 outer wall lead screw of spindle motor, as shown in the figure, main shaft electricity
Machine 181 can be gone up and down in the vertical direction under the drive of 183 output shaft of backboard third direction driving motor, to realize
The vertical adjustment of spindle motor 181 realizes that stirring-head 184 protrudes into the adjustment of workpiece depth, 181 lower end of spindle motor with stir
Mix first 184 transmission connection.
The three-dimensional welding equipment of the embodiment of the present invention use process is as follows:
The device is a kind of three-dimensional welding equipment with double power head operating function, and it is to rub that output power is different
It wipes stirring welding power head and guarantees the stability and standard of Product jointing particularly directed to the three-dimensional welding of aluminum alloy materials workpiece
True property avoids the double soldering tip equipment of the planer-type Friction Stir Welding deformed in welding process.Three-dimensional welding in this application documents
The main body of equipment is double soldering tip equipment of planer-type two dimension Friction Stir Welding, the utility model patent one authorized with my company
Cause that (patent No. 2017205162641, patent name are that " a kind of double soldering tips for planer-type two dimension Friction Stir Welding are set
It is standby "), the three-dimensional welding equipment of the application is changing of carrying out in double soldering tip equipment of this planer-type two dimension Friction Stir Welding
Into, increase clamping device realize three-dimensional welding function.
The bed piece 9 of the device is welding structural element, to guarantee that operating accuracy need to eliminate welding stress, is arranged in
In the middle part of lathe left and right pillar, the driving guide rail 12 of platen 11 is moved on bed piece 9 equipped with four bands, is driven in guide rail 12
Between driving lead screw 13 along X axis is installed, steel plate shield further, on bed piece 9 is installed to guarantee that driving is led
Rail 12 and the operation for driving lead screw 13 more stable；Platen 11 is cast member, is arranged in 9 top of bed piece.Tool
Body is connect equipped with 16 sliding blocks with four driving guide rails 12 in 11 two sides of the bottom of platen, among 11 bottom of platen
Affixed feed screw nut is connect with 9 X axis of bed piece driving lead screw 13, realizes that workbench is moved forward and backward along lathe bed X axis；Folder
It holds device to be arranged on platen 11, so that platen 11 has driven clamping device in X-axis when X axis is mobile
To movement, and by power mechanism 1 drive the first clamping device 2 rotation, realize the rotation of third axial direction, welding when reality
Existing three-dimensional welding operation.
Lathe left column 14 and lathe right column 15 are welding structural element, and are arranged in 9 left and right sides of bed piece.Lathe
Left and right pillar lower part is affixed with lathe bed two sides respectively, affixed with crossbeam bottom respectively at the top of lathe left and right pillar, forms gantry structure
Make body；Machine tool beam 16 is similarly welding structural element, is arranged in above lathe.16 two sides of the bottom of machine tool beam respectively with machine
It is affixed at the top of bed left and right pillar, in addition, being additionally provided with machine tool beam upper rail 19, machine tool beam lower guideway on machine tool beam 16
20, the first power head second direction lead screw 21 and the second power head second direction lead screw 23；Spindle motor 181 is adopted in this embodiment
With dynamic head main spindle water-cooling frequency conversion motor 101,184 running power of stirring-head is driven to can reach 30Kw-60Kw.Spindle motor 181
To ensure that powerful power of motor heat dissipation effect is radiated using Water-cooling circulating, main shaft stepless time adjustment can be realized by frequency conversion.
Since the first power head sub-unit 17 is identical with working method with 18 structure of the second power head sub-unit, now with second
Its use process is introduced for power head sub-unit 18: backboard third direction driving motor 183 is connected to backboard sub-unit 182
On, it is run along Y-axis or so, by the servo motor connection retarder driving backboard sub-unit being mounted among machine tool beam 16
The rotation of 182 ball-screws, drives the feed screw nut at 182 rear portion of backboard sub-unit, makes backboard sub-unit 182 and along machine tool beam 16
Upper and lower two side rails realize Y-axis operation；Similarly, 181 Z axis of spindle motor is to upper and lower operation by being mounted on backboard sub-unit 182
The servo motor connection retarder driving ball-screw rotation in front, the feed screw nut for driving 181 rear portion of spindle motor affixed make
Spindle motor 181 vertically realizes Z axis to operation along 183 output shaft of backboard third direction driving motor.The drive of spindle motor 181 is stirred
First 184 rotation is mixed, realizes and friction of workpiece is welded.
Operating procedure is divided into three phases, i.e. booting preparation, equipment operation phase, equipment shutdown work.
One, be switched on preparation:
1, after the main power line and power supply system of 11 driving device 10 of platen connect, confirmation ground wire and zero curve connect
It connects errorless, can power on.
2, the battery main switch in 11 driving device 10 of platen is gone on the position of " 0N ", makes device power.
3, after operation interface start completion, emergency stop switch is unclamped, system start button and reset key, system electrification are pressed
It is enabled.
Two, the equipment operation phase:
1, lathe power supply is connected.Enter the process operation area method of operation after system starting, referring back to point, exists for lathe
Program is executed under automated manner to prepare, while being measured cutter, measurement workpiece using system function and being defined in program and fitting
Zero migration.
2, lathe is debugged, the fortune on lathe can be triggered manually by defined key in Machine-Tool Control plate face and handwheel
It is dynamic.
3, axis positions, and axis can be moved to specific position, to execute simple process operation.
4, manual moving coordinate axis when breaking in a program, in addition, realizing the fortune of axis except through the JOG key of operation plate face
It is dynamic outer, it can also realize that motion positions of axis etc. are operated by general handwheel.
5, in the welding process, be adjustment stirring-head 184 intrusion, can taking human as progress axis biasing；
Its method is as follows:
A. it executes handheld unit to be automatically brought into operation, program is allowed to behave.
B. according to display window, the corresponding key pressing of Z is selected.
C. handwheel selection key is pressed, hand pulse multiplying power appropriate is selected.
D. it is needing to pin enabled switch under Z-direction or when shifting up, by Manual pulse generator to positive or negative side
To a pulse, the shake at a slow speed of pulse, Z will upwards, the position of biased downward pulse equivalency it is mobile.
E. after having used bias capability, as long as pushing operation mode key, bias capability are cancelled.
If F. cancelling the offset value between workpiece coordinate system and lathe coordinate system, instruction can be added in a program.
Three, equipment shutdown procedures:
After equipment is fully completed welding processing and operation, equipment is needed to shut down, shutdown procedures are as follows:
1, check whether each axis movement terminates.
2, equipment is opened in home and cancels each axis and enabled, press the scram button on control panel.
3, system is fully powered-off, and the knob selection switch controlled on cabinet is gone on the position of " OFF ".
The equipment is the planer-type agitating friction soldering equipment of double power head, shares 8 axis, X-axis, Y1 axis, Y2 axis, Z1 axis,
Z2 axis, SP axis, C1 axis, C2 axis.Wherein Z2 axis, Y2 axis, C2 axis are second power head for being parallel to Z1 axis, Y1 axis, C1 axis, and
First power head is straight line power head, and the second power head is curve power head.11 first direction lead screw of platen therein
For X-direction lead screw, straight line power head second direction lead screw is straight line power head Y-direction lead screw, curve power head second direction lead screw
For the Y-direction lead screw of curve power head, straight line power head backboard third direction driving motor 183 is the drive of straight line power head backboard Z-direction
Dynamic device 10, straight line power head second direction driving motor are straight line power head Y-direction driving device 10, curve power head backboard the
Three direction drive motors 183 are curve power head Z-direction driving device 10, and curve power head second direction driving motor is dynamic for curve
Power head Y-direction driving device 10, Z1 axis, Y1 axis, C1 axis fit in straight line power head, it is characterized in that main shaft water-cooling frequency conversion motor
With 60Kw great power, the aluminum alloy materials function of penetrability agitating friction straight line welding 50mm thickness is realized, and Z2 axis,
Y2 axis, C2 axis, SP axis fit in curve power head, it is characterized in that main shaft is realized by increased SP axle construction and performance
Various curve Friction Stir Welding functions.Main shaft water-cooling frequency conversion motor 101 has 30Kw power, has penetrability agitating friction
The aluminum alloy materials function of curve welding 20mm thickness；X-axis fits in lathe bed workbench, has in X direction back and forth driving work
Part function simultaneously cooperates power head to complete workpiece welding step.It should be noted that the output of straight line power head and curve power head
Power can be adjusted and replace according to actual needs stirring-head 184.
Since straight line power head and curve power head share the same workbench, X-axis belongs to shared axis.Lathe is being transported
When row, while there can only be a power head (straight line power head sub-unit or curve power head sub-unit) to participate in operation, work as needs
When second power head (straight line power head sub-unit or curve power head sub-unit) walking program being called to be welded, needing should
Axis is converted by reference axis.Geometrical axis conversion is carried out by program, geometric transformation can also be carried out by key manually, be considered as
Current power head (straight line power head sub-unit or curve power head sub-unit) is effective.For security consideration, one of them is run
When power head, another work head necessarily is in dead-center position.
Clamping device is welded using agitating friction as above, is used cooperatively with existing planer-type two dimension Multi Role Aircraft bed apparatus,
It is specifically located on bed piece 9, to increase the third axis of planer-type two dimension Multi Role Aircraft bed apparatus, clamping device can
Under to piece-holder state, realization moves along 9 length direction of bed piece and along clamping device central axes circular-rotation, thus
The three-dimensional welding function of realizing workpiece, has filled up technological gap.It is of the invention by setting clamping device to existing planer-type
Two machine tools improve, and realize three-dimensional welding function, expand application range, improve the work effect of workpiece welding
Rate.
Meanwhile double power head (the first power head sub-unit 17 and the second power head sub-unit 18) feature advantage is not only in that
Separate unit have the function of dual stage equipment have both performance and, i.e., there is the curve of the welding of deep tailor's part straight line and general thickness to weld simultaneously
It connects.Not only has a curve welding performance with more curve power head, but also curve power head can also be competent at general thickness and slim
The straight line of plate welds, the ideal effect that the present invention has sufficiently achieved reasonable utilization, thickness is taken into account, full-featured, while also big
The unfavorable hidden danger for reducing reactive loss or overload operation greatly, brings apparent economy and practicability.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. a kind of agitating friction welds clamping device, which is characterized in that including power mechanism, the first clamping device, the second clamping machine
Structure and pedestal, the power mechanism, the first clamping device and the second clamping device are successively fixedly mounted on the base, described
Power mechanism transmission connection first clamping device, first clamping device and the second clamping device are oppositely arranged.
2. agitating friction as described in claim 1 welds clamping device, which is characterized in that first clamping device includes first
Stable disk, the first support frame, the first support plate, the first squeeze cylinder, first squeeze disk and the first locating shaft, and described first stablizes
Disk, the first support plate and the first extruding disk are sequentially coaxially set on first locating shaft, first stable disk and described the
One locating shaft is fixedly connected, and first support plate and the first extruding disk and first locating shaft are rotatablely connected, and described first
Support plate lower part outer rim is fixedly connected with first support frame upper end, first support frame lower end and the fixed company of the pedestal
It connects, multiple first squeeze cylinders are circumferentially uniformly fixed on the first support disc side, the output shaft of first squeeze cylinder
It slides through first support plate and offsets with the first extruding disc side.
3. agitating friction as claimed in claim 2 welds clamping device, which is characterized in that second clamping device includes second
Stable disk, the second support frame, the second support plate, the second squeeze cylinder, second squeeze disk, the second locating shaft, fixed frame, sliding rail and cunning
Seat, second stable disk, the second support plate and the second extruding disk are sequentially coaxially set on second locating shaft, and described second
Stable disk is fixedly connected with second locating shaft, and second support plate and second squeezes disk and second locating shaft rotation
Connection, second support plate lower part outer rim is fixedly connected with first support frame upper end, second support frame lower end and
Slide upper end sliding contact, multiple second squeeze cylinders are circumferentially uniformly fixed on the second support disc side, described
The output shaft of second squeeze cylinder slides through second support plate and offsets with the second stable disk one side, and described second
Stable disk another side is equipped with fixed frame, and the fixed frame lower end is fixedly connected with the slide, and the sliding rail is fixed at
The pedestal upper surface, the slide sliding are set on the sliding rail.
4. agitating friction as claimed in claim 3 welds clamping device, which is characterized in that it further include mounting rack and driving cylinder,
The mounting rack is fixed on the pedestal, and the mounting rack is set to the extreme, and the driving cylinder is laterally set to
On the mounting rack, the driving boom end of the driving cylinder is fixedly connected with the fixed frame, the drive rod and described second
Locating shaft is coaxially set.
5. agitating friction as claimed in claim 4 welds clamping device, which is characterized in that the power mechanism includes variable-frequency electric
Machine, headstock and reduction gearbox, the variable-frequency motor are sequentially connected the headstock, slow down described in the headstock driving motor
Case, the reduction gearbox transmission connection first stable disk.
6. agitating friction as claimed in claim 5 welds clamping device, which is characterized in that it further include slipper bracket, the sliding
Bracket is fixed at the pedestal upper end, and the slipper bracket is set between first clamping device and the second clamping device.
7. agitating friction as claimed in claim 6 welds clamping device, which is characterized in that further include hydraulic station, described first squeezes
Cylinder pressure and the second squeeze cylinder pass through hydraulic station described in piping connection.
8. a kind of three-dimensional welding equipment welds clamping device using agitating friction such as of any of claims 1-7, special
Sign is, further includes bed piece, driving device, platen, driving guide rail, driving lead screw, lathe left column, the lathe right side
Column, machine tool beam, the first power head sub-unit and the second power head sub-unit, the driving device are fixed at the lathe
The rear end of lathe bed, the bed piece upper end are equipped with driving guide rail and driving lead screw, driving lead screw end transmission connection institute
Driving device is stated, the platen is set on the driving guide rail along driving lead screw sliding, the lathe left column
Set on the left side of the bed piece, the lathe right column be set to the bed piece right side, the machine tool beam across
Above the bed piece, and the machine tool beam both ends are fixed with the lathe left column and lathe right column upper end respectively
Connection, the first power head sub-unit and the second power head sub-unit slide laterally on the machine tool beam, described
Agitating friction weldering clamping device is fixed on the platen.
9. three-dimensional welding equipment as claimed in claim 8, which is characterized in that further include the lathe on the machine tool beam
Crossbeam upper rail, machine tool beam lower guideway, the first power head second direction lead screw, the first power head second direction driving motor,
Second power head second direction lead screw and the second power head second direction driving motor, the machine tool beam upper rail are set to described
Machine tool beam upper end, the machine tool beam lower guideway are set to the machine tool beam lower end, the first power head second direction silk
Thick stick is set to below the machine tool beam upper rail, and the second power head second direction lead screw is set to the machine tool beam lower guideway
Top, the first power head second direction lead screw left end transmission connection the first power head second direction driving motor, institute
The second power head second direction lead screw right end transmission connection the second power head second direction driving motor is stated, described first is dynamic
Power head sub-unit is set under the machine tool beam upper rail and machine tool beam along the first power head second direction lead screw sliding
On guide rail, the second power head sub-unit is set under the machine tool beam along the second power head second direction lead screw sliding
On guide rail and machine tool beam upper rail.
10. three-dimensional welding equipment as claimed in claim 9, which is characterized in that the first power head sub-unit and second moves
Power head sub-unit structure is identical, and the second power head sub-unit includes spindle motor, backboard sub-unit, the drive of backboard third direction
Dynamic motor and stirring-head, the backboard sub-unit are set to the second power head sub-unit rear portion, and the backboard third direction drives
Dynamic motor is set to the top of the backboard sub-unit, the backboard sub-unit and machine tool beam upper rail and machine tool beam lower guideway
It is slidably connected, the spindle motor is set to the second power head sub-unit front, the backboard third direction driving motor output shaft
It is connect with the spindle motor outer wall lead screw, the spindle motor lower end and stirring-head are sequentially connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910610324.XA CN110202253B (en) | 2019-07-08 | 2019-07-08 | Friction stir welding clamping device and three-dimensional welding equipment |
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|---|---|---|---|
| CN201910610324.XA CN110202253B (en) | 2019-07-08 | 2019-07-08 | Friction stir welding clamping device and three-dimensional welding equipment |
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| CN110587209A (en) * | 2019-10-14 | 2019-12-20 | 合肥海源机械有限公司 | A welding auxiliary fixtures for fork truck steer axle body |
| CN112453683A (en) * | 2020-12-22 | 2021-03-09 | 江苏拓海煤矿钻探机械有限公司 | Friction welding machine for directional drill rod machining |
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Also Published As
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| CN110202253B (en) | 2021-06-22 |
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