NL2034283A - Friction welding machine - Google Patents
Friction welding machine Download PDFInfo
- Publication number
- NL2034283A NL2034283A NL2034283A NL2034283A NL2034283A NL 2034283 A NL2034283 A NL 2034283A NL 2034283 A NL2034283 A NL 2034283A NL 2034283 A NL2034283 A NL 2034283A NL 2034283 A NL2034283 A NL 2034283A
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- NL
- Netherlands
- Prior art keywords
- sliding table
- movable sliding
- main shaft
- oil cylinder
- tailstock
- Prior art date
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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
- B23K20/121—Control circuits therefor
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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
- B23K20/126—Workpiece support, i.e. backing or clamping
-
- 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
- B23K20/129—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 specially adapted for particular articles or workpieces
-
- 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
- B23K20/26—Auxiliary equipment
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/001—Turbines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Machine Tool Units (AREA)
- Turning (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
Disclosed is a friction welding machine, including a machine bed, a main shaft system, a power system, a movable sliding table mechanism, and an upsetting oil cylinder; specially, the main shaft system is fixedly arranged on the machine bed and is used for mounting a main shaft workpiece; the power system is fixedly arranged on the machine bed and in transmission connection with a main shaft of the main shaft system, the movable sliding table mechanism includes a tailstock assembly used for mounting a tailstock workpiece, an axle center adjusting device is fixedly arranged on the movable sliding table mechanism and can drive the tailstock assembly to move and lock the position of the tailstock assembly; the upsetting oil cylinder is fixedly arranged on the machine bed and can drive the movable sliding table mechanism to be close to or far away from the main shaft system.
Description
FRICTION WELDING MACHINE
The present invention relates to the technical field of fric- tion welding, and particularly relates to a friction welding ma- chine.
As an important component cof an aero-engine, a rotor assembly is a mechanical device for transmitting mechanical energy to gas to complete the compression of a gas medium in a thermodynamic cy- cle of the engine, thereby increasing the gas pressure. The tradi- tional connection mode of an aero-engine rotor assembly includes mechanical bolt connection and electron beam welding, but the me- chanical connection results in a relatively larger thickness and higher quality of a compressor disk, which increases the overall weight of the engine and is not beneficial to the improvement of the thrust-to-weight ratio and performance of the aero-engine, while the electron beam welding mode requires higher heat input, causes larger welding deformation, relatively higher residual stress after welding and greater difficulty in welding of dissimi- lar materials, so it is difficult to fully meet the manufacturing requirements of the design of the aero-engine compressor disk and seriously restricts the overall performance of the aero-engine.
The use of friction welding can meet the welding requirements of a workpiece, the positions of tailstock axle center and fixture axle center cannot be adjusted since the friction welding device in the prior art has completed the manufacturing, therefore, a workpiece with special welding requirements often has the problem of axle center accuracy deviation, and the existing friction welding ma- chine constrains the workpiece, which easily causes a deflection during welding due to torque, thus making the workpiece unable to meet the welding requirements.
The objective of the present invention is to provide a fric- tion welding machine, so as to solve the above existing problems in the prior art such that the axle center position of the tail- stock workpiece can be adjusted.
To implement the above objective, the present invention pro- vides the following solution:
The present invention discloses a friction welding machine, the friction machine includes a machine bed, a main shaft system, a power system, a movable sliding table mechanism, and an upset- ting oil cylinder; the main shaft system is fixedly arranged on the machine bed, and the main shaft system is used for mounting a main shaft workpiece; the power system is fixedly arranged on the machine bed, and the power system is in transmission connection with a main shaft of the main shaft system; the movable sliding table mechanism is connected with the machine bed in a sliding manner, the movable sliding table mechanism includes a tailstock assembly, the tailstock assembly is used for mounting a tailstock workpiece, an axle center adjusting device is fixedly arranged on the movable sliding table mechanism, and the axle center adjusting device can drive the tailstock assembly to move and lock the posi- tion of the tailstock assembly; the upsetting oil cylinder is fix- edly arranged on the machine bed, the output end of the upsetting oil cylinder is fixedly connected to the movable sliding table mechanism, and the upsetting oil cylinder can drive the movable sliding table mechanism to be close to or far away from the main shaft system.
Preferably, the friction welding machine further includes a rotary isolating mechanism, where the rotary isolating mechanism includes a guide disk and a plurality of first adjusting mecha- nisms, the guide disk is used for being movably arranged on the tailstock assembly, a through hole is formed in the guide disk, a plurality of rollers evenly arranged on the inner wall of the through hole along the circumferential direction of the through hole, the main shaft system includes a rotary positioning body, the rotary positioning body is used for mounting the main shaft workpieces, part of side walls of each roller can simultaneously contact with the outer wall of the rotary positioning body, each first adjusting mechanism is used for being fixedly arranged on the tailstock assembly, a plurality of the first adjusting mecha- nisms are distributed around the guide disk, and the radial posi- tion of the guide disk can be adjusted through the matching of the first adjusting mechanisms, so that the guide disk and the tail- stock workpieces are coaxial and the position of the guide disk can be locked.
Preferably, each first adjusting mechanism includes a first driving device and first adjusting wedges, the first driving de- vice is in transmission connection with the first adjusting wedg- es, a plurality of first fixed wedges corresponding to the first adjusting wedges are arranged on the tailstock assembly, the first driving device can drive the first adjusting wedges to move, and the movement of the first adjusting wedges can drive the first fixed wedges to move, so that the radial position of the guide disk is changed, and the position of the guide disk can be locked through cooperation between the first adjusting wedges and the first fixed wedges.
Preferably, the power system includes an air-cooling system and a driving system, the air-cooling system can cool the driving system, and the driving system is in transmission connection with the main shaft through a coupling.
Preferably, the main shaft system further includes a main shaft box, a bearing seat, a balanced hydraulic cylinder, a thrust disk, a thrust bearing, a floating bearing, a backup thrust bear- ing for tightening and a main shaft, where the main shaft is lo- cated inside the main shaft box and is rotationally connected with the main shaft box, the main shaft has a first shaft shoulder, a first limiting portion is arranged inside the main shaft box, the thrust bearing is arranged on the main shaft in a sleeving manner and is located between the first shaft shoulder and the first lim- iting portion, the balanced hydraulic cylinder and the thrust disk are fixedly arranged inside the main shaft box, and neither of them are in contact with the main shaft, the thrust disk abuts against the piston rod of the balanced hydraulic cylinder, one side of the thrust disk away from the balanced hydraulic cylinder is provided with a second limiting portion, the main shaft has a second shaft shoulder, the floating bearing is arranged on the main shaft in a sleeving manner and is located between the second shaft shoulder and the second limiting portion, one side of the main shaft box away from the movable sliding table mechanism is connected to the bearing seat by means of a bolt, one end of the main shaft away from the movable sliding table mechanism can pro- trude from the bearing seat, a nut is in threaded connection to one end of the main shaft away from the movable sliding table mechanism, a third limiting portion is formed in the side wall of the nut, the bearing seat has a fourth limiting portion, and the backup thrust bearing for tightening is arranged on the main shaft in a sleeving manner and is located between the third limiting portion and the fourth limiting portion.
Preferably, the axle center adjusting device includes a plu- rality of tensioning mechanisms and a plurality of second adjust- ing mechanisms, the movable sliding table mechanism further in- cludes a movable sliding table, the tensioning mechanisms are used to be arranged on one side of the movable sliding table away from the tailstock assembly, each tensioning mechanism can drive the tailstock assembly to move towards a direction close to the mova- ble sliding table so as to limit the movement of the tailstock as- sembly, and the movement of the tailstock assembly towards the di- rection away from the movable sliding table can make the tailstock assembly in an adjustable state; each second adjusting mechanism is used to be fixedly arranged on the movable sliding table, the plurality of second adjusting mechanisms are distributed around the tailstock assembly, and when the tailstock assembly is in an adjustable state, the radial position of the tailstock assembly can be adjusted and locked through the plurality of second adjust- ing mechanisms.
Preferably, each second adjusting mechanism includes a second driving device and second adjusting wedges, the second driving de- vice is in transmission connection with the second adjusting wedg- es, a plurality of second fixed wedges are correspondingly dis- posed on the tailstock assembly, the second driving device can drive the second adjusting wedges to move, one second adjusting wedge can drive one second fixed wedge to move, so that the posi- tion of the tailstock assembly is changed, and the radial position of the tailstock assembly can be locked through cooperation be- tween the second adjusting wedges and the second fixed wedges. 5 Preferably, each tensioning mechanism includes a tensioning 0il cylinder and a tensioning rod, the tensioning rod can pass through the movable sliding table and the tailstock assembly in turn, one end of the tensioning rod away from the tailstock assem- bly is in transmission connection with the tensioning oil cylin- der, the other end of the tensioning rod is provided with a limit- ing end, the tensioning oil cylinder can drive the tensioning rod to move in the direction away from the tailstock assembly, and the axial movement of the tailstock assembly is limited through coop- eration between the limiting end and the movable sliding table.
Preferably, the upsetting oil cylinder includes a first oil cylinder, a second oil cylinder and a locking mechanism, a piston rod of the first oil cylinder is used for being fixedly connected with the movable sliding table; a movable sliding table connecting seat is fixedly arranged on the movable sliding table, a piston rod of the second oil cylinder can be at least partially posi- tioned insider the movable sliding table connecting seat and be slidably connected with the movable sliding table connecting seat, and the piston rod of the first oil cylinder is parallel to the movement direction of the piston rod of the second oil cylinder; and the locking mechanism can lock the movable sliding table con- necting base to the piston rod of the second cylinder.
Preferably, the locking mechanism includes a plurality of connecting members, a plurality of through holes are uniformly formed in the circumferential direction of the movable sliding ta- ble connecting seat away from one end of movable sliding table of the movable sliding table connecting seat, a plurality of recesses are correspondingly arranged on the piston rod of the second oil cylinder, and the movable sliding table connecting seat can be locked on the piston rod of the second oil cylinder by making one connecting member pass through one through hole and extending into the recess corresponding to the through hole.
Compared with the prior art, the present invention achieves the following technical effects:
By providing the axle center adjusting device on the movable sliding table mechanism, the axle center adjusting device of the friction welding machine provided in the present invention can ad-
Just the position of the tailstock assembly for mounting the tail- stock workpiece, so that the axle center position of the tailstock workpiece is changed. Therefore, the friction welding machine pro- vided in the present invention can adjust the axle center position of the tailstock workpiece.
In order to explain the technical solutions in embodiments of the present invention or in the prior art more clearly, the accom- panying drawings required in the embodiments will be described be- low briefly. Apparently, the accompanying drawings in the follow- ing description show merely some embodiments of the present inven- tion, and other drawings can be derived from these accompanying drawings by those of ordinary skill in the art without creative efforts.
FIG. 1 is an overall structural schematic diagram of a fric- tion welding machine provided in the present invention;
FIG. 2 is a structural schematic diagram of a movable sliding table mechanism provided in the present invention; and
FIG. 3 is a sectional view of a movable sliding table mecha- nism provided in the present invention;
FIG. 4 is a structural schematic diagram of an upsetting oil cylinder provided in the present invention.
In the figures, 100 - friction welding machine; 1 - machine bed; 2 - main shaft system; 3 - power system; 4 - movable sliding table mechanism; 5 - upsetting oil cylinder; 51 - first oil cylin- der; 52 - second oil cylinder; 53 - locking mechanism; 54 - mova- ble sliding table connecting seat; 6 - rotary isolating mechanism; 61- guide disk; 62 - first adjusting mechanism; 63 - roller; 7 - axle center adjusting device; 71 - tensioning mechanism; 72 - sec- ond adjusting mechanism; 721 - second driving device; 722 - second adjusting wedge; and 723 - second fixed wedge.
The technical solutions in embodiments of the present inven- tion are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present inven- tion. Apparently, the embodiments described are merely some rather than all of the embodiments of the present invention. All the oth- er embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present in- vention.
The objective of the present invention is to provide a fric- tion welding machine, so as to solve the existing problems in the prior art such that the axle center position of the tailstock workpiece can be adjusted.
To make the above objectives, features and advantages of the present invention clearer and more comprehensible, the present in- vention will be further described below in detail in conjunction with accompanying drawings and particular embodiments.
The present invention provides a friction welding machine 100, as shown in FIG. 1, including a machine bed 1, a main shaft system 2, a power system 3, a movable sliding table mechanism 4, and an upsetting oil cylinder 5; the main shaft system 2 is fixed- ly arranged on the machine bed 1, and the main shaft system 2 is used for mounting the main shaft workpieces; the power system 3 is fixedly arranged on the machine bed 1, and the power system 3 is in transmission connection with a main shaft of the main shaft system 2; the movable sliding table mechanism 4 is connected with the machine bed 1 in a sliding manner, the movable sliding table mechanism 4 includes a tailstock assembly, the tailstock assembly is used for mounting a tailstock workpiece, an axle center adjust- ing device 7 is fixedly arranged on the movable sliding table mechanism 4, and the axle center adjusting device 7 can drive the tailstock assembly to move and lock the position of the tailstock assembly; the upsetting oil cylinder 5 is fixedly arranged on the machine bed 1, the output end of the upsetting oil cylinder 5 is fixedly connected to the movable sliding table mechanism 4, and the upsetting oil cylinder 5 can drive the movable sliding table mechanism 4 to be close to or far away from the main shaft system 2.
By providing the axle center adjusting device 7 on the mova- ble sliding table mechanism 4, the axle center adjusting device 7 can adjust the position of the tailstock assembly for mounting the tailstock workpiece, so that the axle center position of the tail- stock workpiece is changed, and the axle center position of the tailstock workpiece is thus adjusted.
The friction welding machine 100 provided by the present in- vention further includes a rotary isolating mechanism 6, where the rotary isolating mechanism 6 includes a guide disk 61 and a plu- rality of first adjusting mechanisms 62, the guide disk 61 movably arranged on the tailstock assembly, a through hole is formed in the guide disk 61, a plurality of rollers 63 evenly arranged on the inner wall of the through hole along the circumferential di- rection of the through hole, the main shaft system 2 includes a rotary positioning body, the rotary positioning body is used for mounting the main shaft workpieces, part of side walls of each roller 63 can simultaneously contact with the outer wall of the rotary positioning body, each first adjusting mechanism 62 is fix- edly arranged on the tailstock assembly, a plurality of the first adjusting mechanisms 62 are distributed around the guide disk 61, and the radial position of the guide disk 61 can be adjusted through cooperation among the first adjusting mechanisms 62, so that the guide disk 61 and the tailstock workpieces are coaxial and the position of the guide disk 61 can be locked.
The position of the guide disk 61 on the tailstock assembly can be adjusted through the first adjusting mechanisms 62, the ro- tary positioning body used for mounting the main shaft workpieces on the main shaft can partially stretch into the guide disk 61 and contact with the rollers 63, and the position of the guide disk 61 can be locked through the first adjusting mechanisms 62, the guide disk 61 plays a role in limiting the workpiece from deflecting during welding, and in preventing the misalignment of workpiece and axis deflection caused by the welding force and torque during welding, thereby ensuring that the workpiece after welding has good radial runout accuracy.
The rotary positioning body is mounted on the main shaft, the main shaft workpiece can be clamped by a main shaft elastic collet mounted inside the rotary positioning body, the rotary positioning body and the main shaft workpieces also rotate synchronously with the main shaft during welding, the tailstock assembly can be used for clamping the tailstock workpiece, a plurality of pressure plates are arranged on the tailstock assembly, the guide disk 61 can be arranged on the tailstock assembly through the pressure plates, and the pressure plates can limit the axial movement of the guide disk 61. When the friction welding is performed, the main shaft workpiece and the tailstock workpiece are firstly ad- justed to be coaxial, the guide disk 61 is adjusted through the first adjusting mechanisms 62 to enable the guide disk 61 to be coaxial with the rotary positioning body, the guide disk 61 is sleeved on the rotary positioning body during welding, the rotary positioning body drives the rollers 63 to rotate together, each roller 63 is provided with a rotating shaft and can rotate inde- pendently, the main shaft workpiece and the tailstock workpiece are always ensured to be coaxial, and relative friction motion be- tween other parts can be also avoided, thereby playing the role of guiding and rotating isolation.
Each first adjusting mechanism 62 includes a first driving device and first adjusting wedges, the first driving device is in transmission connection with the first adjusting wedges, a plural- ity of first fixed wedges corresponding to the first adjusting wedges are arranged on the tailstock assembly, the first driving device can drive the first adjusting wedges to move, and the move- ment of the first adjusting wedges can drive the first fixed wedg- es to move, so that the radial position of the guide disk 61 is changed, and the position of the guide disk 61 can be locked through cooperation between the first adjusting wedges and the first fixed wedges.
The gliding surface of each first adjusting wedge is attached to the gliding surface of a corresponding first fixed wedge, the gliding surface of each first adjusting wedge is angled to the di- rection of its own movement, and the first driving device can drive the movement of the first adjusting wedges, so that the guide disk 61 is changed.
The power system 3 includes an air-cooling system and a driv- ing system, the air-cooling system can cool the driving system, the driving system is in transmission connection with the main shaft through a coupling, and the driving system can drive the main shaft to rotate and provide an axial force for the main shaft.
The main shaft system 2 further includes a main shaft box, a bearing seat, a balanced hydraulic cylinder, a thrust disk, a thrust bearing, a floating bearing, a backup thrust bearing for tightening and a main shaft, where the main shaft is located in- side the main shaft box and is rotationally connected with the main shaft box, the main shaft has a first shaft shoulder, a first limiting portion is arranged inside the main shaft box, the thrust bearing is arranged on the main shaft in a sleeving manner and is located between the first shaft shoulder and the first limiting portion, the balanced hydraulic cylinder and the thrust disk are fixedly arranged inside the main shaft box, and neither of them are in contact with the main shaft to ensure that no interference occurs when the main shaft rotates, the thrust disk abuts against the piston rod of the balanced hydraulic cylinder, one side of the thrust disk away from the balanced hydraulic cylinder is provided with a second limiting portion, the main shaft has a second shaft shoulder, the floating bearing is arranged on the main shaft in a sleeving manner and is located between the second shaft shoulder and the second limiting portion, one side of the main shaft box away from the movable sliding table mechanism 4 is connected to the bearing seat by means of a bolt, one end of the main shaft away from the movable sliding table mechanism 4 can protrude from the bearing seat, a nut is in threaded connection to one end of the main shaft away from the movable sliding table mechanism 4, a third limiting portion is formed in the side wall of the nut, the bearing seat has a fourth limiting portion, the backup thrust bearing for tightening is arranged on the main shaft in a sleeving manner and is located between the third limiting portion and the fourth limiting portion, the transition fit installation between the outer ring of the backup thrust bearing for tightening and the bearing seat is made, and the transition fit installation between the inner ring and the main shaft is made, where the smaller end of the thrust bearing and the floating bearing is close to the movable sliding table mechanism 4, the larger end of the backup thrust bearing for tightening is close to the movable sliding ta- ble mechanism 4, and the thrust bearing, the floating bearing and the backup thrust bearing for tightening are all preferably the thrust self-aligning roller bearings.
When the main shaft reaches a predetermined rotating speed, the power supply will be stopped, one end of the main shaft system 2 close to the movable sliding table mechanism 4 is provided with an inertia wheel, under the action of the inertia wheel, the main shaft remains at a high-speed rotating state, driven by the upset- ting oil cylinder 5, the tailstock workpiece clamped on the tail- stock assembly is close to the main shaft workpiece clamped on the main shaft, the butt joint of workpieces is completed under the action of the upsetting oil cylinder, the main shaft gradually stops rotating under the action of a frictional resistance between the two workpieces, from the contact of two workpieces to the ro- tation stop of the main shaft for the completion of the welding process, there has been always an axial heavy-load force acting in the axial direction of the main shaft, and the axial force is jointly borne by the thrust bearing and the floating bearing. In order to distribute the axial force more evenly to the thrust bearing and the floating bearing in a relatively balanced manner and prevent either of the bearings from being burned due to exces- sive force, the thrust bearing and the floating bearing are mount- ed in the middle part of the main shaft box, where the thrust bearing is mounted in a fixed mode and the floating bearing is mounted in a floating mode, the thrust bearing fixed in a fixed mode acts the axial force it bears directly on the main shaft box, the floating bearing mounted in a floating mode is mounted on the thrust disk and thus acts the axial force it bears indirectly on the main shaft box through the balanced hydraulic cylinder, the role of the balanced hydraulic cylinder is to balance the axial force borne by the thrust bearing and the floating bearing, the specific principle is that a pressurized cavity of the balanced hydraulic cylinder is communicated with a pressurized cavity of the axial force pressurized cylinder, and the area of the pressur- ized cavity of the balanced hydraulic cylinder is half of that of the pressurized cavity of the balanced hydraulic cylinder, in this way, the balanced hydraulic cylinder will provide an axial force half of the axial bearing force, namely, the floating bearing car- ries half of the axial force under the action of the balanced hy- draulic cylinder, the other half of the axial force is borne by the thrust bearing, the bearing problem of the main shaft system 2 with large bearing force is solved by adopting a technology of balancing stress of a thrust heavy-load thrust self-aligning roll- er bearings and the balanced hydraulic cylinder, and the service life of the bearing is prolonged.
The pressurized cavity of the balanced hydraulic cylinder is communicated with the pressurized cavity of the axial pressurized cylinder of the main shaft, the piston area of the pressurized cavity of the balanced hydraulic cylinder is half of that of the pressurized cavity of the axial pressurized cylinder of the main shaft, and the balanced hydraulic cylinder only has an oil inlet cavity but does not have an oil return cavity.
The axle center adjusting device 7 includes a plurality of tensioning mechanisms 71 and a plurality of second adjusting mech- anisms 72, the movable sliding table mechanism 4 further includes a movable sliding table, the tensioning mechanisms 71 are used to be arranged on one side of the movable sliding table away from the tailstock assembly, each tensioning mechanism 71 can drive the tailstock assembly to move towards a direction close to the mova- ble sliding table so as to limit the movement of the tailstock as- sembly, and the movement of the tailstock assembly towards the di- rection away from the movable sliding table can make the tailstock assembly in an adjustable state; each second adjusting mechanism 72 is used to be fixedly arranged on the movable sliding table, the plurality of second adjusting mechanisms 72 are distributed around the tailstock assembly, and when the tailstock assembly is in an adjustable state, the radial position of the tailstock as- sembly can be adjusted and locked through the plurality of second adjusting mechanisms 72.
Each second adjusting mechanism 72 includes a second driving device 721 and second adjusting wedges 722, the second driving de- vice 721 is in transmission connection with the second adjusting wedges 722, a plurality of second fixed wedges 723 are correspond- ingly disposed on the tailstock assembly, the second driving de- vice 721 can drive the second adjusting wedges 722 to move, one second adjusting wedge 722 can drive one second fixed wedge 723 to move, so that the position of the tailstock assembly is changed, and the radial position of the tailstock assembly can be locked through cooperation between the second adjusting wedges 722 and the second fixed wedges 723.
The gliding surface of each second adjusting wedge 722 is at- tached to the gliding surface of a corresponding second fixed wedge 723, the gliding surface of each second adjusting wedge 722 is angled to the direction of its own movement, and the second driving device 721 can drive the movement of the second adjusting wedges 722, so that the position of the tailstock assembly is changed. The second adjusting mechanisms 72 are preferably four and are arranged at the lower left part, lower right part, upper left part and upper right part of the tailstock assembly, respec- tively, the tailstock assembly can move along each direction in the radial direction by adjusting the second adjusting mechanisms 72 at the lower left part and/or the lower right part, the second driving device 721 can be electrically connected with a control system, the feed rate of the second driving device 721 is con- trolled by the parameters set by the control system, so that the position of the tailstock assembly can be accurately adjusted, the adjustment accuracy is high, and the post-welding accuracy of the workpiece can be ensured. The second adjusting mechanisms 72 lo- cated at the upper left part and the upper right part of the tail- stock assembly are used for cooperating with the second adjusting mechanisms 72 located at the lower left part and lower right part of the tailstock assembly to clamp the tailstock assembly, and the second driving device 721 of the second adjusting mechanisms 72 located at the upper left part and upper right part of the tail- stock assembly may be an oil cylinder.
Each tensioning mechanism 71 includes a tensioning oil cylin-
der and a tensioning rod, the tensioning rod can pass through the movable sliding table and the tailstock assembly in turn, one end of the tensioning rod away from the tailstock assembly is in transmission connection with the tensioning oil cylinder, the oth- er end of the tensioning rod is provided with a limiting end, the tensioning oil cylinder can drive the tensioning rod to move in the direction away from the tailstock assembly, the axial movement of the tailstock assembly is limited through cooperation between the limiting end and the movable sliding table, a tensioning wedge is fixedly arranged on a piston rod of the tensioning oil cylin- der, a through hole is formed in the tensioning rod, the tension- ing wedge can extend into the through hole, the inner wall of the through hole away from one side of the tailstock assembly can be attached to a gliding surface of the tensioning wedge, and the tensioning wedge can act on the tensioning rod by driving the ten- sioning wedge to move along with the piston rod through the ten- sioning oil cylinder, so that the tensioning rod can move in a di- rection away from the tailstock assembly.
The upsetting oil cylinder 5 includes a first oil cylinder 51, a second oil cylinder 52 and a locking mechanism 53, where a piston rod of the first oil cylinder 51 is used for being fixedly connected with the movable sliding table; a movable sliding table connecting seat 54 is fixedly arranged on the movable sliding ta- ble, a piston rod of the second oil cylinder 52 can be at least partially positioned insider the movable sliding table connecting seat 54 and be slidably connected with the movable sliding table connecting seat 54, and the piston rod of the first oil cylinder 51 is parallel to the movement direction of the piston rod of the second oil cylinder 52; and the locking mechanism 53 can lock the movable sliding table connecting base 54 to the piston rod of the second cylinder 52.
The upsetting process is completed through two oil cylinders, the first oil cylinder 51 is only used for pushing the movable sliding table to move forward or backward without load, a long- stroke oil cylinder with less oil supply may be selected as the first oil cylinder 51, when the piston rod of the first oil cylin- der 51 moves forward to a certain distance between the main shaft workpiece and the tailstock workpiece, the movable sliding table connecting seat 54 is locked on the piston rod of the second oil cylinder 52 through the locking mechanism 53, the second oil cyl- inder 52 pushes the movable sliding table to move forward to com- plete the upsetting through the movable sliding table connecting seat 54 locked on the piston rod of the second oil cylinder 52, and a short-stroke oil cylinder with large oil supply may be se- lected as the second oil cylinder 52, which greatly reduces the manufacturing and using costs compared with the long-stroke oil cylinder with large oil supply in the prior at that needs to not only push the movable sliding table to move forward without load but also complete the upsetting.
The locking mechanism 53 includes a plurality of connecting members, a plurality of through holes are uniformly formed in the circumferential direction of the movable sliding table connecting seat 54 away from one end of movable sliding table of the movable sliding table connecting seat 54, a plurality of recesses are cor- respondingly arranged on the piston rod of the second oil cylinder 52, and the movable sliding table connecting seat can be locked on the piston rod of the second oil cylinder 52 by making one con- necting member pass through one through hole and extending into the recess corresponding to the through hole.
The locking mechanism 53 includes a plurality of connecting members, a plurality of through holes are uniformly formed in the circumferential direction of the movable sliding table connecting seat 54 away from one end of movable sliding table of the movable sliding table connecting seat 54, a plurality of recesses are cor- respondingly arranged on the piston rod of the second oil cylinder 52, and the movable sliding table connecting seat 54 can be locked on the piston rod of the second oil cylinder 52 by making one con- necting member pass through one through hole and extending into the recess corresponding to the through hole. The connecting mem- bers are preferably the fixed pins, and after the upsetting is completed, the connecting members can be moved and the first oil cylinder 51 and the second oil cylinder 52 can be reset.
Specific examples are used in the present invention for il- lustration of the principles and implementations of the present invention.
The description of the embodiments described above is merely used to assist in understanding a method and its core con- cept of the present invention.
In addition, those of ordinary skill in the art may make modifications to the specific implemen- tations and the application scope in accordance with the concept of the present invention.
Therefore, the content of the present description should not be construed as limiting the present inven- tion.
Claims (10)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210236170.4A CN114473179B (en) | 2022-03-11 | 2022-03-11 | Friction welding machine |
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| Publication Number | Publication Date |
|---|---|
| NL2034283A true NL2034283A (en) | 2023-09-13 |
| NL2034283B1 NL2034283B1 (en) | 2023-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL2034283A NL2034283B1 (en) | 2022-03-11 | 2023-03-08 | Friction welding machine |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN114473179B (en) |
| NL (1) | NL2034283B1 (en) |
| WO (1) | WO2023168961A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114473179B (en) * | 2022-03-11 | 2024-02-09 | 中国机械总院集团哈尔滨焊接研究所有限公司 | Friction welding machine |
| CN114453723A (en) * | 2022-03-11 | 2022-05-10 | 哈尔滨焊接研究院有限公司 | Upsetting oil cylinder and friction welding machine |
| CN117655692A (en) * | 2023-12-22 | 2024-03-08 | 江苏亚力亚气动液压成套设备有限公司 | Centering positioning device for assembling and disassembling hydraulic cylinder |
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| CN107971625A (en) * | 2017-11-24 | 2018-05-01 | 中国航发沈阳黎明航空发动机有限责任公司 | It is a kind of to adjust inertia friction welder main shaft side and the special method of tailstock side concentricity |
| CN113770506A (en) * | 2021-09-24 | 2021-12-10 | 长春数控机床有限公司 | Adjustable movable clamp for welding typical parts of aero-engine and inertia friction welding machine |
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| CN2780400Y (en) * | 2005-03-30 | 2006-05-17 | 长春数控机床有限公司 | Full electric friction welding machine |
| CN103567628B (en) * | 2013-11-19 | 2015-10-21 | 江苏无锡建华机床附件集团有限公司 | A kind of spring provides the friction welding power chuck of power |
| CN203900506U (en) * | 2014-05-21 | 2014-10-29 | 贵州遵义驰宇精密机电制造有限公司 | Tensioning type lathe tailstock |
| GB201505631D0 (en) * | 2015-04-01 | 2015-05-13 | Rolls Royce Plc | Friction welding vibration damping |
| CN106825632A (en) * | 2017-01-13 | 2017-06-13 | 苏州珈玛自动化科技有限公司 | A kind of tail stock |
| CN206795035U (en) * | 2017-05-08 | 2017-12-26 | 北京世佳博科技发展有限公司 | Automotive hub welding tool for friction stir welding |
| CN207255469U (en) * | 2017-06-19 | 2018-04-20 | 机械科学研究院哈尔滨焊接研究所 | Thrust bearing floating mount inertia friction welder carries axis system |
| CN108637462A (en) * | 2018-07-12 | 2018-10-12 | 江苏锢邦智能装备有限公司 | A kind of friction welding apparatuses |
| CN109676239B (en) * | 2019-01-28 | 2024-02-02 | 中国机械总院集团哈尔滨焊接研究所有限公司 | Friction welding device with interaction of welding force closed-loop control and open-loop control and friction welding process thereof |
| CN210115567U (en) * | 2019-05-17 | 2020-02-28 | 辽宁工业大学 | Friction welding machine capable of realizing no-leaving circular ring |
| CN212384912U (en) * | 2020-04-30 | 2021-01-22 | 津上精密机床（浙江）有限公司 | Collet chuck type tailstock of refitted friction welding machine |
| CN215824517U (en) * | 2021-05-28 | 2022-02-15 | 哈尔滨焊接研究院有限公司 | Double-cylinder continuous driving friction welding machine |
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| CN114473179B (en) * | 2022-03-11 | 2024-02-09 | 中国机械总院集团哈尔滨焊接研究所有限公司 | Friction welding machine |
-
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- 2022-03-11 CN CN202210236170.4A patent/CN114473179B/en active Active
- 2022-11-02 WO PCT/CN2022/129116 patent/WO2023168961A1/en unknown
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- 2023-03-08 NL NL2034283A patent/NL2034283B1/en active
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| CN102990220A (en) * | 2012-08-28 | 2013-03-27 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for regulating accuracy of coaxiality between spindle side and tailstock side of friction welding machine |
| CN107971625A (en) * | 2017-11-24 | 2018-05-01 | 中国航发沈阳黎明航空发动机有限责任公司 | It is a kind of to adjust inertia friction welder main shaft side and the special method of tailstock side concentricity |
| CN113770506A (en) * | 2021-09-24 | 2021-12-10 | 长春数控机床有限公司 | Adjustable movable clamp for welding typical parts of aero-engine and inertia friction welding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| NL2034283B1 (en) | 2023-11-27 |
| CN114473179A (en) | 2022-05-13 |
| CN114473179B (en) | 2024-02-09 |
| WO2023168961A1 (en) | 2023-09-14 |
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