CN113770506A - Adjustable movable clamp for welding typical parts of aero-engine and inertia friction welding machine - Google Patents
Adjustable movable clamp for welding typical parts of aero-engine and inertia friction welding machine Download PDFInfo
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- CN113770506A CN113770506A CN202111122483.9A CN202111122483A CN113770506A CN 113770506 A CN113770506 A CN 113770506A CN 202111122483 A CN202111122483 A CN 202111122483A CN 113770506 A CN113770506 A CN 113770506A
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- 239000003638 chemical reducing agent Substances 0.000 description 1
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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
-
- 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
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Abstract
The invention discloses an adjustable moving clamp for welding typical parts of an aircraft engine, wherein a moving base is arranged on a sliding table and can move in a translation mode along the axial direction; a movable clamping jaw is arranged in the adjusting support seat, and the clamping jaw clamps a workpiece; the adjusting support seat and the moving base move in a guiding mode through at least four guide keys, the guide keys play a role in limiting and guiding and respectively limit two-dimensional translation perpendicular to the axial direction; the movable base is provided with at least three coaxiality adjusting devices, and each coaxiality adjusting device is matched in a telescopic mode, so that the adjusting supporting seat moves in two dimensions perpendicular to the axis plane of the main shaft, the axis of a workpiece at the moving clamping end of the friction welding machine is aligned with the axis of the main shaft, when deviation occurs between the axes of the workpieces, clamping is not needed again, the adjusting supporting seat can correct the deviation by adjusting the movement of the two dimensions relative to the movable base, and the coaxiality of the translational workpiece can be adjusted quickly and accurately.
Description
Technical Field
The invention relates to the technical field of friction welding, in particular to an adjustable moving clamp for welding typical parts of an aircraft engine. In addition, the invention also relates to an inertia friction welding machine.
Background
The friction welding is a method for realizing welding by using friction heat generated by mutual friction between thermoplastic materials, during the friction welding, workpieces to be welded generate relative motion, meanwhile, proper axial pressure (friction pressure) is applied for friction to generate heat, a high-temperature plastic area is generated near the contact surface of the workpieces, when the temperature reaches the welding temperature, the relative motion between the workpieces is rapidly stopped, meanwhile, the axial pressure is increased to top forging pressure, and the pressure is properly maintained for a period of time, so that the workpieces to be welded can be firmly welded into a whole.
The existing heavy inertia friction welding machine mainly comprises a main motor, an overrunning clutch, a main shaft assembly, an inertia wheel assembly, a rotating clamp, a moving clamp and the like. The main motor drives the main shaft through the overrunning clutch, the rotary clamp is arranged at the front end of the main shaft, the rotary clamp clamps the welded workpiece to rotate along with the main shaft, and the main motor and the main shaft are separated and combined through the overrunning clutch.
As shown in fig. 1, which is a schematic diagram of the principle of friction welding, a rotary fixture 01 and a movable fixture 02 respectively clamp two workpieces to be welded, and the rotary fixture drives the left workpiece to rotate along with a main shaft; the movable sliding table enables the movable clamp to axially translate under the pushing of the main oil cylinder, and the axial force of the friction and upsetting process is from the pushing force of the main oil cylinder.
Along with the expansion of friction welding machine to the aviation field, weldment diameter and welding area are constantly increaseing, and the weldment diameter has reached 1000mm, and the upset force breaks through 10000KN, and lathe gross weight reaches 650 tons. The coaxiality requirement of weldments in other fields of automobiles, engineering machinery and the like can reach several millimeters, the coaxiality requirement of an aero-engine compressor assembly, a turbine shaft assembly, a fan shaft assembly and the like during welding is not more than 0.15mm, the requirements of dimensional tolerance, form and position tolerance and the like of parts forming the welding machine are high, the parts are special-shaped and large in size, and the parts are machined extremely. At present, the coaxiality of a workpiece can not be adjusted during clamping, repeated clamping and alignment are needed, and the operation process is complex.
For those skilled in the art, how to quickly and accurately adjust the coaxiality of the workpiece axis at the moving clamping end of the friction welding machine and the spindle axis is a technical problem to be solved at present.
Disclosure of Invention
The invention provides an adjustable moving clamp for welding typical parts of an aeroengine, which can enable a workpiece to move in a two-dimensional direction perpendicular to the axis of a main shaft and adjust the coaxiality of the translated workpiece, and the specific scheme is as follows:
an adjustable moving clamp for welding typical parts of an aircraft engine comprises a moving base and an adjusting support seat, wherein the moving base is arranged on a sliding table and can move in a translation mode along the axial direction; a movable clamping jaw is arranged in the adjusting support seat;
the adjusting support seat and the moving base move in a guiding mode through at least four guide keys, and the guide keys respectively limit two-dimensional translation perpendicular to the axial direction;
the movable base is provided with at least three coaxiality adjusting devices, and the coaxiality adjusting devices are matched in a telescopic mode to enable the adjusting supporting seat to move in two dimensions perpendicular to the axis plane of the main shaft.
Optionally, the coaxiality adjusting device includes a coaxiality adjusting mounting base fixed to the moving base, a translational push rod, a first adjusting wedge, a first ball screw and a first driver are respectively mounted on the coaxiality adjusting mounting base, the first driver drives the first ball screw to rotate, the first ball screw drives the first adjusting wedge to move through threads, the first adjusting wedge and the translational push rod are in transmission through an inclined surface, and an extending end of the translational push rod contacts and drives the adjusting support seat.
Optionally, an elastic supporting member is disposed on the moving base, and the elastic supporting member applies an upward bearing force to the bottom of the adjusting support seat.
Optionally, a plurality of the elastic supporting members are arranged in a crisscross array.
Optionally, the elastic support comprises a spring support, a spring and a floating slider, the spring support is fixedly mounted on the moving base, the spring and the floating slider are mounted in the spring support, and the spring applies upward elastic force to the floating slider.
Optionally, the upper surface of the floating slide is provided with a roller.
Optionally, a pretightening force adjusting block is arranged in the spring support, and the pretightening force adjusting block supports the bottom end of the spring and is used for changing the pretightening force of the spring.
Optionally, the adjustable clamping device further comprises a revolving body arranged in the adjusting support seat, and the movable clamping jaw is installed in the revolving body;
the revolving body and the adjusting support seat are connected through a revolving key which is circumferentially arranged, the revolving body and the adjusting support seat can rotate relatively, and circumferential torque is transmitted through the revolving key;
at least three parallelism adjusting devices are arranged on the adjusting supporting seat along the circumferential direction, and the parallelism adjusting devices are matched with each other in a telescopic mode to adjust the parallelism of the revolving body.
Optionally, the parallelism adjusting device comprises a parallelism adjusting mounting seat fixed on the moving base or the adjusting support seat, a ball push rod, a second adjusting wedge, a second ball screw and a second driver are mounted on the parallelism adjusting mounting seat, and the ball seat is fixed on the revolving body;
the second driver drives the second ball screw to rotate, and the second ball screw thread drives the second adjusting wedge block to move; the second adjusting wedge block is in transmission with the inclined plane of the ball head push rod, and a ball head at the extending end of the ball head push rod extends into the ball seat.
Optionally, the revolving body comprises a spherical section and a cylindrical section, an arc groove is formed in the outer surface of the spherical section, and the revolving key fixed on the adjusting support seat is clamped into the arc groove.
The invention also provides an inertia friction welding machine which comprises the adjustable movable clamp for welding the typical parts of the aircraft engine.
The invention provides an adjustable moving clamp for welding typical parts of an aircraft engine, wherein a moving base is arranged on a sliding table and can move in a translation mode along the axial direction; a movable clamping jaw is arranged in the adjusting support seat, and the clamping jaw clamps a workpiece; the adjusting support seat and the moving base move in a guiding mode through at least four guide keys, the guide keys play a role in limiting and guiding and respectively limit two-dimensional translation perpendicular to the axial direction; the movable base is provided with at least three coaxiality adjusting devices, and each coaxiality adjusting device is matched in a telescopic mode, so that the adjusting supporting seat moves in two dimensions perpendicular to the axis plane of the main shaft, the axis of a workpiece at the moving clamping end of the friction welding machine is aligned with the axis of the main shaft, when deviation occurs between the axes of the workpieces, clamping is not needed again, the adjusting supporting seat can correct the deviation by adjusting the movement of the two dimensions relative to the movable base, and the coaxiality of the translational workpiece can be adjusted quickly and accurately. In a further structure, the invention can also adjust the parallelism, and can realize the double adjustment of the coaxiality adjustment and the parallelism adjustment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic illustration of a friction weld;
FIG. 2 is a front sectional view of an adjustable moving fixture for welding typical parts of an aircraft engine provided by the invention;
FIG. 3A is a cross-sectional view taken along line a-a of FIG. 2;
FIG. 3B is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 3C is an enlarged view of a portion of the parallelism adjusting apparatus of FIG. 3B;
FIG. 4 is a schematic cross-sectional view of the elastic support member;
FIG. 5 is a schematic sectional view of the mutual assembly of the adjusting support seat and the revolving body;
FIG. 6A is a schematic diagram of the vertical component of the movement of the coaxiality adjustment apparatus;
FIG. 6B is a schematic diagram of the movement component of the coaxiality adjustment apparatus in the horizontal direction;
fig. 7A and 7B are schematic views showing upward deflection and downward deflection of the parallelism adjusting device at the upper vertex angle, respectively;
FIGS. 8A and 8B are schematic front and side views, respectively, of the parallelism adjusting device at the lower base angle, shown deflected upwardly;
FIGS. 9A and 9B are schematic front and side views, respectively, of the parallelism adjusting device at the lower base angle, shown deflected downward;
fig. 10 is a schematic view of the overall structure of the inertia friction welding machine provided by the invention.
The figure includes:
the device comprises a moving base 1, an elastic supporting piece 11, a spring support 111, a spring 112, a floating slide block 113, a pretightening force adjusting block 114, an adjusting support seat 2, a moving clamping jaw 3, a guide key 4, a coaxiality adjusting device 5, a coaxiality adjusting installation seat 51, a translation push rod 52, a first adjusting wedge block 53, a first ball screw 54, a first driver 55, a revolving body 6, an arc groove 61, a revolving key 7, a parallelism adjusting device 8, a parallelism adjusting installation seat 81, a ball push rod 82, a second adjusting wedge block 83, a second ball screw 84, a second driver 85 and a ball seat 86.
Detailed Description
The invention provides an adjustable movable clamp for welding typical parts of an aircraft engine, which can enable a workpiece to move in a two-dimensional direction perpendicular to the axis of a main shaft and adjust the coaxiality of the axis of the workpiece at the movable clamping end of a friction welding machine and the axis of the main shaft. In a further scheme, the invention can also rotate the workpiece in any direction to adjust the parallelism of the workpiece axis sliding table guide surface and the clamping end moving workpiece.
In order to make those skilled in the art better understand the technical solution of the present invention, the adjustable moving fixture and the inertia friction welding machine for welding typical parts of an aircraft engine according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
FIG. 2 is a front sectional view of an adjustable moving fixture for welding typical parts of an aircraft engine provided by the invention; fig. 3A is a sectional view taken along a-a in fig. 2, fig. 3B is a sectional view taken along B-B in fig. 2, and fig. 3C is a partially enlarged view of the parallelism adjusting apparatus 8 in fig. 3B; the adjustable moving clamp for welding typical parts of an aircraft engine can translate, clamps a moving clamp end workpiece on the adjustable moving clamp, and comprises a moving base 1, an adjusting support seat 2, a moving clamping jaw 3, a guide key 4, a coaxiality adjusting device 5 and other structures, wherein the moving base 1 is arranged on a sliding table and can move in an axial translation manner, and A in figure 2 represents the sliding table and can move in a left-right translation manner in the direction of a bidirectional arrow in the figure; a movable clamping jaw 3 is arranged in the adjusting support seat 2, and the movable clamping jaw 3 is used for clamping a workpiece; after the workpiece is clamped, the movable base 1, the adjusting support seat 2 and the movable clamping jaw 3 move in the axial direction together with the workpiece synchronously.
Adjust between supporting seat 2 and the moving base 1 through the direction removal of at least four direction keys 4, direction key 4 divides into two sets ofly, and the removal of a dimension is led respectively to each group, and direction key 4 limits the translation of two dimensions perpendicular to the axial respectively, also adjusts two dimensions that supporting seat 2 adjusted for moving base 1 and is perpendicular to moving base 1 along with the dimension of slip table translation respectively, also X axle and Z axle direction in fig. 3A.
At least three coaxiality adjusting devices 5 are arranged on the movable base 1, each coaxiality adjusting device 5 is arranged along the circumferential direction, and each coaxiality adjusting device 5 is in telescopic fit, so that the adjusting support base 2 moves in two dimensions perpendicular to the axis plane of the main shaft, wherein the axis of the main shaft is the translation direction of the movable base 1, namely the Y-axis direction in fig. 2. The telescopic direction of the coaxiality adjusting devices 5 is perpendicular to the axis direction of the main shaft, the telescopic ends of the coaxiality adjusting devices 5 are in contact with the adjusting supporting seat 2, and the adjusting supporting seat 2 is driven by the coaxiality adjusting devices 5 to be adjusted.
The coaxiality adjusting device 5 and the guide key 4 are positioned at the same axial position, namely the coordinate in the Y-axis direction is consistent; the resultant force of the acting force generated by the coaxiality adjusting device 5 is coplanar with the plane where the supporting point of the guide key 4 is located, so that the adjusting supporting seat 2 can be prevented from rotating due to the generated moment.
The adjustable moving clamp for welding typical parts of an aircraft engine can drive a workpiece to move stably, when the workpiece is clamped, if the central lines of the workpiece are deviated and dislocated, namely not collinear, acting force is exerted on the adjusting support seat 2 from the circumferential direction by the coaxiality adjusting device 5, the adjusting support seat 2 is limited by the guide key 4, the adjusting position is moved in two dimensions, the central lines of the two workpieces can be aligned and collinear, the axes of the workpieces at the moving clamping end of the friction welding machine are aligned with the axis of the main shaft, and the purpose of adjusting the coaxiality is achieved; the workpiece does not need to be clamped again in the adjusting process, the adjusting supporting seat 2 can correct the deviation by adjusting the movement of two dimensions relative to the moving base, and the coaxiality of the translational workpiece can be adjusted quickly and accurately.
On the basis of the above scheme, the coaxiality adjusting device 5 of the invention comprises a coaxiality adjusting mounting seat 51, a translation push rod 52, a first adjusting wedge 53, a first ball screw 54 and a first driver 55, wherein the coaxiality adjusting mounting seat 51 is fixed on the moving base 1 and is used for mounting other components. A translation push rod 52, a first adjusting wedge 53, a first ball screw 54 and a first driver 55 are respectively arranged on the coaxiality adjusting mounting seat 51; the translation push rod 52 and the first adjusting wedge block 53 are respectively arranged on the coaxiality adjusting installation seat 51 in a sliding manner, and the sliding directions of the translation push rod 52 and the first adjusting wedge block are mutually vertical; the first adjusting wedge 53 and the translation push rod 52 are in contact with each other, inclined surfaces are arranged at the contact positions respectively, and the transmission direction of the acting force is changed through the mutual matching contact of the two inclined surfaces, so that the first adjusting wedge 53 and the translation push rod 52 respectively translate along different directions.
One end of the translation push rod 52 extends out of the coaxiality adjusting mounting seat 51 to play a role of pushing. The first driver 55 includes a motor and a speed reducer. The length direction of the first ball screw 54 is parallel to the moving direction of the first adjusting wedge 53; the first adjusting wedge 53 is provided with an internal thread which is in threaded fit connection with an external thread on the first ball screw 54.
During operation, the first driver 55 drives the first ball screw 54 to rotate, the first ball screw 54 drives the first adjusting wedge 53 to move through a thread, the first adjusting wedge 53 and the translation push rod 52 are in inclined surface transmission, the extending end of the translation push rod 52 contacts with the driving adjusting support seat 2, and the driving adjusting support seat 2 is driven to displace by resultant force generated by thrust of different translation push rods 52.
Preferably, the invention arranges an elastic support 11 on the moving base 1, and as shown in fig. 2 and fig. 3A, the elastic support 11 is installed on the upper surface of the bottom plate of the moving base 1 and is located between the moving base 1 and the adjusting support seat 2.
The elastic supporting member 11 applies an upward supporting force to the bottom of the adjusting support base 2 to resist the self-gravity of the adjusting support base 2, thereby reducing the acting force required when the coaxiality adjusting device 5 is driven.
Specifically, the plurality of elastic supporting members 11 are arranged in a longitudinal and transverse array, and the plurality of elastic supporting members 11 arranged in an array provide upward elastic force to provide stable supporting force for the adjusting supporting seat 2. As shown in fig. 2 and 3A, twelve elastic supporting members 11 are arranged in three rows and four columns.
Specifically, referring to fig. 4, a cross-sectional view of the elastic supporting member 11 is shown; the elastic support 11 comprises a spring support 111, a spring 112 and a floating slider 113, wherein the spring support 111 is fixedly arranged on the moving base 1 and is of a shell structure; the spring 112 and the floating slider 113 are installed in the spring support 111, the floating slider 113 can move up and down relative to the spring support 111, the spring 112 applies upward elastic force to the floating slider 113, and the top end of the floating slider 113 provides supporting force for the adjusting support 2.
Preferably, the roller is arranged on the upper surface of the floating slide block 113, the roller is cylindrical and is arranged in the raceway on the upper surface of the floating slide block 113, the roller contacts the bottom surface of the adjusting support seat 2, the contact friction force during transverse movement is reduced, and the adjusting support seat 2 is easier to push.
A pretightening force adjusting block 114 is arranged in the spring support 111, the pretightening force adjusting block 114 can be installed in the spring support 111 in a threaded connection mode and the like, the pretightening force adjusting block 114 supports the bottom end of the spring 112, and the top end of the pretightening force adjusting block 114 is variable in position and used for changing pretightening force of the spring 112.
On the basis of any one of the above technical solutions and the mutual combination thereof, the present invention further includes a revolving body 6 disposed in the adjusting support seat 2, and is shown in fig. 5, which is a cross-sectional schematic view of the mutual assembly of the adjusting support seat 2 and the revolving body 6; the movable clamping jaw 3 is arranged in the revolving body 6, and the movable clamping jaw 3 and the revolving body 6 keep synchronous motion.
The solid of revolution 6 is connected through gyration key 7 with adjusting supporting seat 2, but a plurality of gyration keys 7 are arranged along circumference with the central line of solid of revolution 6, the solid of revolution 6 can rotate relatively through gyration key 7 with adjusting supporting seat 2 to but through gyration key 7 transmission circumference moment of torsion, also the solid of revolution 6 can't be for adjusting supporting seat 2 around the central line of work piece along circumference gyration, the direction of gyration key 7 is the pitch arc, the direction of each gyration key 7 is central symmetry distribution with the central line of work piece.
At least three parallelism adjusting devices 8 are arranged on the adjusting support seat 2 along the circumferential direction, and the parallelism adjusting devices 8 are telescopically matched to adjust the parallelism of the revolving body 6; the plurality of parallelism adjusting devices 8 are distributed along the circumferential direction and are approximately positioned in the same section, and the positions of the parallelism adjusting devices 8 in the axial direction of the main shaft are the same; the positions of the rotary keys 7 in the axial direction of the main shaft are the same; the positions of the parallelism adjusting device 8 and the rotation key 7 in the axial direction of the spindle are staggered, the parallelism adjusting device 8 and the rotation key 7 jointly support the rotation body 6, when acting force is applied to the parallelism adjusting device 8, moment is generated on the rotation body 6, the rotation body 6 rotates, workpieces synchronously rotate along with the rotation body 6, the axial direction of the workpieces can be adjusted, and the direction of the central line of the workpieces is parallel to the translation direction of the moving base 1.
The adjustable movable fixture for welding typical parts of an aircraft engine can respectively realize the adjustment of two dimensions of the coaxiality of the axis of the workpiece at the moving clamping end of the friction welding machine and the axis of the main shaft and the parallelism of the axis of the workpiece at the moving clamping end and the guide rail surface of the sliding table. During operation, the parallelism and the coaxiality are adjusted first.
As shown in fig. 6A and 6B, three coaxiality adjusting devices 5 are provided, and the three coaxiality adjusting devices 5 are respectively located at three vertex angles of an equilateral triangle, which is shown in fig. 6A and is a schematic diagram of a moving component of the coaxiality adjusting devices 5 in a vertical direction; fig. 6B is a schematic diagram of the movement component of the coaxiality adjusting apparatus 5 in the horizontal direction; the telescopic length of the coaxiality adjusting device 5 is adjusted according to the following formula:
the moving distance of each of the two side coaxiality adjusting devices 5 in the vertical direction
Separation: h ═ w cos (60)
The moving distance of each of the two side coaxiality adjusting devices 5 in the horizontal direction
Separation: h ═ w × sin (60)
h is the moving distance component of the coaxiality adjusting device in the vertical direction or the horizontal direction;
w is the eccentricity between the axis of the moving part clamp and the axis of the rotating clamp.
The present invention preferably provides three parallelism adjusting means 8 evenly, the three parallelism adjusting means 8 being located at the three vertices of an equilateral triangle, the three parallelism adjusting means 8 being arranged symmetrically with respect to the vertical plane.
Fig. 7A and 7B are schematic views showing upward deflection and downward deflection of the parallelism adjusting device 8 at the top corner, respectively;
when the swing is deflected upwards: h ═ a × tan (θ) + b/cos (θ) -b
When deflecting downwards: h- 'b/cos (theta) -a star (theta)', as a main component
Fig. 8A and 8B show schematic front and side views, respectively, of the upward deflection of the parallelism adjusting device 8 at the lower base angle; fig. 9A and 9B show front and side views, respectively, of the downward deflection of the parallelism adjusting device 8 at the lower base angle.
When the swing is deflected upwards:
h＝a*tan(θ)+b/cos(θ)-b
c＝h*cos(60)
when deflecting downwards:
h＝b-〖b/cos(θ)-a*tan(θ)〗
c＝h*cos(60)
h is the moving distance component of the ball head push rod in the vertical direction;
a, the distance between the axis of the ball head push rod and the center of the revolving body;
b, the distance from the sphere center of the ball head to the axis of the revolving body;
c, adjusting the actual telescopic distance of the two parallelism adjusting devices at the bottom corner of the lower part;
theta is the deflection angle between the axis of the movable clamping jaw and the axis of the main shaft.
The parallelism adjusting means 8 are similar in construction to the coaxiality adjusting means 5, but not exactly the same; the parallelism adjusting device 8 comprises a parallelism adjusting mounting seat 81 fixed on the moving base 1 or the adjusting supporting seat 2, the parallelism adjusting mounting seat 81 in fig. 3A is fixed on the moving base 1, a ball push rod 82 passes through a through hole on the adjusting supporting seat 2, and a ball at the tail end of the ball push rod 82 extends into a ball seat 86; in the structure shown in fig. 5, the parallelism adjusting mount 81 is fixed to the adjusting support base 2.
The parallelism adjusting mount 81 is mounted with a ball push rod 82, a second adjusting wedge 83, a second ball screw 84, and a second actuator 85, and a ball seat 86 is fixed to the rotation body 6. The parallelism adjusting device 8 and the coaxiality adjusting device 5 differ mainly in the ball push rod 82 and the ball seat 86.
During work, the second driver 85 drives the second ball screw 84 to rotate, and the second ball screw 84 drives the second adjusting wedge 83 to move through threads; the second adjusting wedge block 83 and the ball head push rod 82 are in transmission through inclined planes, and the transmission direction of the acting force is changed through the mutual matching of the two inclined planes; the ball head push rod 82 is provided with a spherical surface at the extending end, the ball seat 86 is provided with a ball groove, the ball head at the extending end of the ball head push rod 82 extends into the ball seat 86, and the ball head push rod 82 and the ball seat 86 are matched with each other to form a ball hinge; as the revolving body 6 needs to rotate, the following can be better realized by adopting a spherical hinge matching mode.
As shown in fig. 5, the revolving body 6 includes a spherical section and a cylindrical section, the outer surface of the spherical section is a spherical surface, the outer surface of the cylindrical section is a cylindrical surface, the outer surface of the spherical section is provided with arc grooves 61, and each arc groove 61 is distributed in central symmetry with the center line of the revolving body 6; the rotatable key 7 fixed on the adjusting support seat 2 is clamped in the arc groove 61, and the rotatable key 7 and the arc groove 61 can move in a reciprocating mode along an arc line.
The invention also provides an inertia friction welding machine, which comprises the adjustable moving clamp for welding the typical parts of the aero-engine, and the inertia friction welding machine can achieve the same technical effect. Fig. 10 is a schematic view of the overall structure of the inertia friction welding machine provided by the invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. The adjustable moving clamp for welding typical parts of the aero-engine is characterized by comprising a moving base (1) and an adjusting support seat (2), wherein the moving base (1) is mounted on a sliding table and can move in a translation mode along the axial direction; a movable clamping jaw (3) is arranged in the adjusting supporting seat (2);
the adjusting support seat (2) and the moving base (1) move in a guiding mode through at least four guide keys (4), and the guide keys (4) respectively limit two-dimensional translation perpendicular to the axial direction;
the movable base (1) is provided with at least three coaxiality adjusting devices (5), and the coaxiality adjusting devices (5) are in telescopic fit to enable the adjusting support base (2) to move in two dimensions perpendicular to the axis plane of the main shaft.
2. The adjustable mobile clamp for welding typical parts of an aircraft engine according to claim 1, characterized in that the coaxiality adjusting device (5) comprises a coaxiality adjusting mounting seat (51) fixed on the mobile base (1), a translational push rod (52), a first adjusting wedge (53), a first ball screw (54) and a first driver (55) are respectively mounted on the coaxiality adjusting mounting seat (51), the first driver (55) drives the first ball screw (54) to rotate, the first ball screw (54) drives the first adjusting wedge (53) to move in a threaded manner, the first adjusting wedge (53) and the translational push rod (52) are in bevel transmission, and the outward extending end of the translational push rod (52) is in contact with and drives the adjusting support seat (2).
3. The adjustable mobile welding fixture for typical parts of aeroengines according to claim 1, characterized in that the mobile base (1) is provided with an elastic support (11), and the elastic support (11) exerts an upward bearing force on the bottom of the adjustable support base (2).
4. Adjustable moving clamp for welding typical parts of aeroengines, according to claim 3, characterized in that a plurality of said elastic supports (11) are arranged in a criss-cross array.
5. The adjustable mobile welding fixture for typical parts of aeroengines, according to claim 4, characterized in that said elastic support (11) comprises a spring support (111), a spring (112) and a floating slider (113), said spring support (111) is fixedly mounted on said mobile base (1), said spring (112) and said floating slider (113) are mounted inside said spring support (111), said spring (112) exerts an upward elastic force on said floating slider (113).
6. The adjustable moving jig for welding typical parts of aeroengines according to claim 5, characterized in that the upper surface of the floating slider (113) is provided with rollers.
7. The adjustable moving clamp for welding typical parts of an aeroengine according to claim 5, characterized in that a pretightening force adjusting block (114) is arranged in the spring support (111), and the pretightening force adjusting block (114) provides support for the bottom end of the spring (112) and is used for changing the pretightening force of the spring (112).
8. The adjustable mobile clamp for welding typical parts of aeroengines according to any one of claims 1 to 7, characterized by further comprising a revolving body (6) arranged inside said adjusting support seat (2), said mobile clamping jaw (3) being mounted inside said revolving body (6);
the revolving body (6) is connected with the adjusting support seat (2) through a rotatable key (7) which is circumferentially arranged, the revolving body (6) and the adjusting support seat (2) can rotate relatively, and circumferential torque is transmitted through the rotatable key (7);
at least three parallelism adjusting devices (8) are arranged on the adjusting supporting seat (2) along the circumferential direction, and the parallelism adjusting devices (8) are matched with each other in a telescopic mode to adjust the parallelism of the revolving body (6).
9. The adjustable moving fixture for welding typical parts of an aeroengine according to claim 8, wherein the parallelism adjusting device (8) comprises a parallelism adjusting mounting seat (81) fixed on the moving base (1) or the adjusting supporting seat (2), a ball head push rod (82), a second adjusting wedge block (83), a second ball screw (84) and a second driver (85) are mounted on the parallelism adjusting mounting seat (81), and a ball seat (86) is fixed on the revolving body (6);
the second driver (85) drives the second ball screw (84) to rotate, and the second ball screw (84) drives the second adjusting wedge block (83) to move in a threaded mode; the second adjusting wedge block (83) is in transmission with the inclined surface of the ball head push rod (82), and a ball head at the extending end of the ball head push rod (82) extends into the ball seat (86).
10. The adjustable moving fixture for welding typical parts of aeroengines as defined in claim 8, characterized in that said revolving body (6) comprises a spherical section and a cylindrical section, the outer surface of the spherical section is provided with a circular arc groove (61), and said rotatable key (7) fixed on said adjustable support seat (2) is snapped into said circular arc groove (61).
11. An inertia friction welder, characterized in that it comprises an adjustable mobile clamp for welding typical parts of aeroengines according to any one of claims 1 to 10.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111122483.9A CN113770506A (en) | 2021-09-24 | 2021-09-24 | Adjustable movable clamp for welding typical parts of aero-engine and inertia friction welding machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111122483.9A CN113770506A (en) | 2021-09-24 | 2021-09-24 | Adjustable movable clamp for welding typical parts of aero-engine and inertia friction welding machine |
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| CN113770506A true CN113770506A (en) | 2021-12-10 |
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| CN202111122483.9A Pending CN113770506A (en) | 2021-09-24 | 2021-09-24 | Adjustable movable clamp for welding typical parts of aero-engine and inertia friction welding machine |
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| CN117548809B (en) * | 2024-01-09 | 2024-03-19 | 国焊(上海)智能科技有限公司 | Part clamping device for friction welding |
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