CN113770506B - Adjustable mobile fixture and inertia friction welding machine for welding typical parts of aircraft engines - Google Patents
Adjustable mobile fixture and inertia friction welding machine for welding typical parts of aircraft engines Download PDFInfo
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- CN113770506B CN113770506B CN202111122483.9A CN202111122483A CN113770506B CN 113770506 B CN113770506 B CN 113770506B CN 202111122483 A CN202111122483 A CN 202111122483A CN 113770506 B CN113770506 B CN 113770506B
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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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- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
本发明公开一种航空发动机典型零件焊接的可调移动夹具，移动基座安装在滑台上，能够沿轴向平移运动；调节支撑座内安装移动夹爪，夹爪夹持工件；调节支撑座与移动基座之间通过至少四个导向键导向移动，导向键起到限位导向的作用，分别限定垂直于轴向的两个维度平移；移动基座上设置至少三个同轴度调节装置，各个同轴度调节装置伸缩配合，使调节支撑座在垂直于主轴轴线平面的两个维度上移动，使摩擦焊机移夹端工件轴线与主轴轴线相互对正，当工件的轴线之间出现偏差时，不需要重新夹装，调节支撑座相对于移动基座调节两个维度的移动即可纠偏，实现快速精准地调节平移工件的同轴度。
The present invention discloses an adjustable movable clamp for welding typical parts of aircraft engines. The movable base is installed on a slide table and can move in an axial direction. A movable clamp is installed in an adjusting support seat, and the clamp clamps the workpiece. The adjustment support seat and the movable base are guided to move by at least four guide keys, and the guide keys play a role of limiting guides, and respectively limit the translation in two dimensions perpendicular to the axial direction. At least three coaxiality adjustment devices are arranged on the movable base, and each coaxiality adjustment device is telescopically matched to enable the adjustment support seat to move in two dimensions perpendicular to the plane of the main shaft axis, so that the axis of the workpiece at the clamping end of the friction welding machine is aligned with the axis of the main shaft. When a deviation occurs between the axes of the workpieces, there is no need to re-clamp, and the adjustment support seat can correct the deviation by adjusting the movement in two dimensions relative to the movable base, thereby realizing rapid and accurate adjustment of the coaxiality of the translational workpiece.
Description
Technical Field
The invention relates to the technical field of friction welding, in particular to an adjustable movable clamp for welding typical parts of an aero-engine. The invention also relates to an inertia friction welding machine.
Background
The friction welding is a method for realizing welding by utilizing friction heat generated by mutual friction between thermoplastic materials, during friction welding, workpieces to be welded generate relative motion, and simultaneously, heat generated by friction is applied by applying proper axial pressure (friction pressure) to enable a high-temperature plastic area to be generated near a workpiece contact surface, when the temperature reaches the welding temperature, the relative motion between the workpieces is quickly stopped, meanwhile, the axial pressure is increased to the upsetting pressure, and the workpieces to be welded can be firmly connected into a whole after a proper pressure maintaining period.
The existing heavy inertia friction welding machine mainly comprises a main motor, an overrunning clutch, a main shaft assembly, an inertia wheel assembly, a rotary clamp, a movable clamp and the like. The main motor drives the main shaft through the overrun clutch, the front end of the main shaft is provided with a rotary clamp, the rotary clamp clamps the welded workpiece to rotate together with the main shaft, and the main motor and the main shaft are clutched by the overrun clutch.
As shown in FIG. 1, which is a schematic diagram of the principle of friction welding, a rotating clamp 01 and a moving clamp 02 respectively clamp two workpieces to be welded, the rotating clamp drives the left workpiece to rotate along with a main shaft, a moving sliding table is pushed by a main oil cylinder to axially translate the moving clamp, and the axial force in the friction and upsetting process is from the thrust of the main oil cylinder.
Along with the expansion of the friction welding machine to the aviation field, the diameter and the welding area of the welding piece are continuously increased, the diameter of the welding piece is 1000mm, the upsetting force breaks through 10000KN, and the total weight of the machine tool reaches 650 tons. The coaxiality requirements of weldments in other fields such as automobiles, engineering machinery and the like can reach several millimeters, and the coaxiality requirements of aeroengine compressor assemblies, turbine shaft assemblies, fan shaft assemblies and the like during welding are not more than 0.15mm, the requirements of dimensional tolerance, form and position tolerance and the like of parts forming a welding machine are higher, the parts are special-shaped and have larger sizes, and the part processing belongs to extreme manufacturing. At present, coaxiality of a workpiece cannot be adjusted during clamping, repeated clamping and alignment are needed, and the operation process is complicated.
How to quickly and accurately adjust the coaxiality of the workpiece axis of the moving clamping end of the friction welding machine and the spindle axis is a technical problem to be solved at present for a person skilled in the art.
Disclosure of Invention
The invention provides an adjustable movable 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 a translational workpiece, and the specific scheme is as follows:
The adjustable movable clamp for welding typical parts of the aero-engine comprises a movable base and an adjusting support seat, wherein the movable base is arranged on a sliding table and can move in an axial translation manner;
The adjusting support seat and the moving base are guided to move through at least four guide keys, and the guide keys respectively limit two-dimensional translation perpendicular to the axial direction;
And at least three coaxiality adjusting devices are arranged on the movable base, and each coaxiality adjusting device is in telescopic fit, so that the adjusting support seat moves in two dimensions perpendicular to the axis plane of the main shaft.
Optionally, axiality adjusting device is including fixing axiality adjusting mount pad on the removal base, install translation push rod, first regulation voussoir, first ball and first driver on the axiality adjusting mount pad respectively, first driver drives first ball is rotatory, first ball screw thread drive first regulation voussoir removes, first regulation voussoir with the translation push rod passes through inclined plane transmission, the overhanging end contact drive of translation push rod adjusts the supporting seat.
Optionally, an elastic support is disposed on the moving base, and the elastic support applies an upward bearing force to the bottom of the adjusting support seat.
Optionally, a plurality of the elastic supports are arranged in a crisscross array.
Optionally, the elastic support member includes 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 inside the spring support, and the spring applies an upward elastic force to the floating slider.
Optionally, a roller is disposed on the upper surface of the floating slider.
Optionally, a pre-tightening force adjusting block is arranged in the spring support, and the pre-tightening force adjusting block provides support for the bottom end of the spring and is used for changing the pre-tightening force of the spring.
Optionally, the device further comprises a revolving body arranged in the adjusting support seat, and the movable clamping jaw is arranged in the revolving body;
The revolving body and the adjusting support seat are connected through a rotatable key which is circumferentially arranged, and the revolving body and the adjusting support seat can rotate relatively and transmit circumferential torque through the rotatable key;
At least three parallelism adjusting devices are arranged on the adjusting support seat along the circumferential direction, and the parallelism of the revolving body is adjusted by telescopic fit of the parallelism adjusting devices.
Optionally, the parallelism adjusting device comprises a parallelism adjusting installation seat fixed on the moving base or the adjusting support seat, a ball head push rod, a second adjusting wedge block, a second ball screw and a second driver are installed on the parallelism adjusting installation seat, and the ball seat is fixed on the revolving body;
the second driver drives the second ball screw to rotate, the second ball screw threads drive the second adjusting wedge block to move, the second adjusting wedge block and the ball head push rod are in inclined plane transmission, and a ball head at the overhanging end of the ball head push rod stretches into the ball seat.
Optionally, the revolving body comprises a spherical section and a cylindrical section, the outer surface of the spherical section is provided with an arc groove, and the rotatable 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 typical parts of the aero-engine.
The invention provides an adjustable moving clamp for welding typical parts of an aeroengine, which is characterized in that a moving base is arranged on a sliding table and can move in an axial translation mode, a moving clamping jaw is arranged in an adjusting support seat and 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 limiting guide role and respectively limit two-dimensional translation perpendicular to the axial direction, at least three coaxiality adjusting devices are arranged on the moving base and are in telescopic fit, the adjusting support seat moves in the two dimensions perpendicular to a main shaft axis plane, the workpiece axis of a moving clamping end of a friction welding machine is aligned with the main shaft axis, when deviation occurs between the workpiece axes, the adjusting support seat can correct deviation by adjusting the movement of the two dimensions relative to the moving base, and the coaxiality of the workpiece can be quickly and accurately adjusted. In a further structure, the invention can also adjust the parallelism, and can realize dual adjustment of coaxiality adjustment and parallelism adjustment.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the principle of friction welding;
FIG. 2 is a front cross-sectional view of an adjustable mobile clamp for welding typical parts of an aircraft engine provided by the invention;
FIG. 3A is a cross-sectional view taken along the direction a-a in FIG. 2;
FIG. 3B is a cross-sectional view taken along the direction B-B in 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 resilient support;
FIG. 5 is a schematic cross-sectional view of the adjustment support base and the rotator assembled with each other;
FIG. 6A is a schematic view of the movement component of the coaxiality adjusting device in the vertical direction;
FIG. 6B is a schematic view of the coaxiality adjustment apparatus moving component in the horizontal direction;
FIGS. 7A and 7B are schematic views showing the upward and downward runout, respectively, of the parallelism adjusting apparatus of the upper corner;
FIGS. 8A and 8B are schematic front and side views, respectively, showing the upward deflection of the parallelism adjusting mechanism at the lower bottom corner;
FIGS. 9A and 9B are front and side views, respectively, showing the downward deflection of the parallelism adjusting mechanism at the lower bottom corner;
FIG. 10 is a schematic diagram of the overall structure of the inertia friction welder provided by the invention.
The drawings include:
The movable base 1, the elastic support 11, the spring support 111, the spring 112, the floating slide 113, the pretightening force adjusting block 114, the adjusting support seat 2, the movable clamping jaw 3, the guide key 4, the coaxiality adjusting device 5, the coaxiality adjusting mounting seat 51, the translation push rod 52, the first adjusting wedge 53, the first ball screw 54, the first driver 55, the revolving body 6, the circular arc groove 61, the revolving key 7, the parallelism adjusting device 8, the parallelism adjusting mounting seat 81, the ball push rod 82, the second adjusting wedge 83, the second ball screw 84, the second driver 85 and the ball seat 86.
Detailed Description
The invention aims at providing an adjustable movable 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 axis of the workpiece at the movable clamp end of a friction welding machine and the axis of the main shaft. In a further scheme, the invention can also enable the workpiece to rotate in any direction and adjust the parallelism with the guide surface of the sliding table of the workpiece axis at the moving clamp end.
In order to make those skilled in the art better understand the technical scheme of the present invention, the following describes the adjustable movable clamp for welding the typical parts of the aero-engine and the inertia friction welding machine in detail with reference to the attached drawings and the specific embodiments.
FIG. 2 is a front cross-sectional view of an adjustable mobile clamp for welding typical parts of an aircraft engine provided by the invention; fig. 3A is a sectional view in a direction a-a in fig. 2, fig. 3B is a sectional view in a direction B-B in fig. 2, fig. 3C is a partial enlarged view of a parallelism adjusting device 8 in fig. 3B, an adjustable moving clamp for welding typical parts of an aeroengine of the present invention can translate, and clamp end workpieces clamped on the adjustable moving clamp, the adjustable moving clamp 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 mounted on a sliding table and can move in an axial translation mode, a in fig. 2 represents the sliding table and can move in a left-right direction of a double-headed arrow in the drawing, a moving clamping jaw 3 is mounted in the adjusting support seat 2, the moving clamping jaw 3 is used for clamping the workpieces, and after the workpieces are clamped, the moving base 1, the adjusting support seat 2 and the moving clamping jaw 3 translate along with the workpieces synchronously move in an axial translation mode.
The adjusting support seat 2 and the moving base 1 are guided to move through at least four guide keys 4, the guide keys 4 are divided into two groups, each group respectively guides the movement of one dimension, the guide keys 4 respectively limit the translation of two dimensions perpendicular to the axial direction, namely, the two dimensions of the adjusting support seat 2 relative to the moving base 1 are respectively perpendicular to the translation dimension of the moving base 1 along with the sliding table, namely, the X-axis direction and the Z-axis 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, and the axis of the main shaft refers to 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 axial direction of the main shaft, the telescopic ends of the coaxiality adjusting devices 5 are contacted with the adjusting support base 2, and the adjusting support base 2 is driven by the coaxiality adjusting devices 5 to realize adjustment.
The coaxiality adjusting device 5 and the guide key 4 are positioned at the same axial position, namely the coordinates in the Y-axis direction are consistent, and the resultant force of acting force generated by the coaxiality adjusting device 5 is coplanar with the plane of the support point of the guide key 4, so that moment generation can be avoided to enable the adjusting support seat 2 to rotate.
The adjustable moving clamp for welding the typical parts of the aeroengine can drive the workpieces to move stably, when the workpieces are clamped, if deviation dislocation occurs between the central lines of the workpieces, namely, the workpieces are not collinear, the coaxiality adjusting device 5 applies acting force to the adjusting support seat 2 from the circumferential direction, the adjusting support seat 2 is limited by the guide key 4, the adjusting positions are moved in two dimensions, the central lines of the two workpieces can be aligned and collinear, the axes of the workpiece at the moving clamping end of the friction welding machine are aligned with the axes of the main shaft, the purpose of adjusting the coaxiality is achieved, the workpieces are not required to be clamped again in the adjusting process, and the coaxiality of the workpieces can be adjusted quickly and accurately by adjusting the movement of the two dimensions of the adjusting support seat 2 relative to the moving base.
On the basis of the above scheme, the coaxiality adjusting device 5 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 movable base 1 and used for mounting other parts. The translational push rod 52, the first adjusting wedge block 53, the first ball screw 54 and the first driver 55 are respectively arranged on the coaxiality adjusting installation seat 51, the translational push rod 52 and the first adjusting wedge block 53 are respectively and slidably arranged on the coaxiality adjusting installation seat 51, the sliding directions of the translational push rod 52 and the first adjusting wedge block 53 are mutually perpendicular, the first adjusting wedge block 53 and the translational push rod 52 are mutually contacted, inclined planes are respectively arranged at the contact positions, and the transmission direction of force is changed through the mutual matching contact of the two inclined planes, so that the first adjusting wedge block 53 and the translational push rod 52 are respectively translated in different directions.
One end of the translation push rod 52 extends out of the coaxiality adjustment mounting seat 51 to play a pushing role. The first driver 55 includes a motor and a speed reducer. The length direction of the first ball screw 54 is parallel to the movement direction of the first adjusting wedge 53, and the first adjusting wedge 53 is provided with internal threads which are in threaded fit connection with external threads on the first ball screw 54.
When the device works, the first driver 55 drives the first ball screw 54 to rotate, the first ball screw 54 drives the first adjusting wedge block 53 to move through threads, the first adjusting wedge block 53 and the translation push rod 52 are driven by inclined planes, the overhanging 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 present invention provides the elastic support 11 on the moving base 1, and as shown in fig. 2 and 3A, the elastic support 11 is installed on the upper surface of the bottom plate of the moving base 1, between the moving base 1 and the adjustment support 2.
The elastic supporting piece 11 applies upward bearing force to the bottom of the adjusting supporting seat 2 so as to resist the gravity of the adjusting supporting seat 2 and reduce the acting force required by the driving of the coaxiality adjusting device 5.
Specifically, the plurality of elastic supporting pieces 11 are arranged in a longitudinal and transverse array, upward elastic force is provided by the plurality of elastic supporting pieces 11 arranged in an array, and stable supporting force is provided for the adjusting supporting seat 2. As shown in fig. 2 and 3A, twelve elastic supports 11 are provided in total in three rows and four columns.
Specifically, referring to fig. 4, a schematic cross-section of the elastic support 11 is shown, the elastic support 11 includes a spring support 111, a spring 112 and a floating slider 113, the spring support 111 is fixedly mounted on the moving base 1 and is a housing structure, the spring 112 and the floating slider 113 are mounted in the spring support 111, the floating slider 113 can translate up and down relative to the spring support 111, the spring 112 applies an upward elastic force to the floating slider 113, and the top end of the floating slider 113 provides a supporting force to the adjusting support 2.
Preferably, the upper surface of the floating sliding block 113 is provided with the roller, the roller is cylindrical and is arranged in the rollaway nest on the upper surface of the floating sliding block 113, the roller contacts the bottom surface of the adjusting supporting seat 2, the contact friction force during transverse movement is reduced, and the adjusting supporting seat 2 is easier to push.
The spring support 111 is internally provided with a pre-tightening force adjusting block 114, the pre-tightening force adjusting block 114 can be installed in the spring support 111 in a threaded connection mode and the like, the pre-tightening force adjusting block 114 provides support for the bottom end of the spring 112, and the top end position of the pre-tightening force adjusting block 114 is variable and is used for changing the pre-tightening force of the spring 112.
On the basis of any one of the technical schemes and the mutual combination, the invention further comprises a revolving body 6 arranged in the adjusting support seat 2, and the sectional schematic diagram of the mutual assembly of the adjusting support seat 2 and the revolving body 6 is shown in combination with fig. 5, wherein 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 movement.
The revolving body 6 and the adjusting support seat 2 are connected through the rotatable keys 7, the rotatable keys 7 are circumferentially arranged along the center line of the revolving body 6, the revolving body 6 and the adjusting support seat 2 can relatively rotate through the rotatable keys 7 and transmit circumferential torque through the rotatable keys 7, namely, the revolving body 6 cannot revolve circumferentially around the center line of a workpiece relative to the adjusting support seat 2, the guiding direction of the rotatable keys 7 is an arc line, and the guiding directions of the rotatable keys 7 are symmetrically distributed along the center line of the workpiece.
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 in telescopic fit for adjusting the parallelism of the revolving body 6; the multiple parallelism adjusting devices 8 are distributed along the circumferential direction and are located in the same cross section, the positions of the parallelism adjusting devices 8 in the axis direction of the spindle are the same, the positions of the rotary keys 7 in the axis direction of the spindle are the same, the positions of the parallelism adjusting devices 8 and the rotary keys 7 in the axis direction of the spindle are staggered, the parallelism adjusting devices 8 and the rotary keys 7 provide support for the revolving body 6 together, when acting force is applied to the parallelism adjusting devices 8, torque is generated on the revolving body 6, the revolving body 6 rotates, the workpiece synchronously rotates along with the revolving body 6, the axis orientation of the workpiece can be adjusted, and the orientation of the center line of the workpiece is parallel to the translation direction of the movable base 1.
The adjustable movable clamp for welding the typical parts of the aeroengine can respectively realize the adjustment of two dimensions of coaxiality between the workpiece axis at the moving clamping end of the friction welding machine and the spindle axis and parallelism between the workpiece axis at the moving clamping end and the guide surface of the sliding table. During operation, parallelism is adjusted first, and coaxiality is adjusted.
As shown in fig. 6A and 6B, three coaxiality adjusting devices 5 are disposed in the figures, wherein the three coaxiality adjusting devices 5 are respectively located at three vertex angles of an equilateral triangle, and are combined with fig. 6A to show a schematic view of a moving component of the coaxiality adjusting device 5 in a vertical direction, fig. 6B is a schematic view of a moving component of the coaxiality adjusting device 5 in a horizontal direction, and the telescopic length of the coaxiality adjusting device 5 is adjusted according to the following formula:
The two coaxiality adjusting devices 5 located at the sides have a movement distance in the vertical direction respectively
From h=w_cos (60)
The two coaxiality adjusting devices 5 positioned at the side have respective moving distances in the horizontal direction
From h=w sin (60)
H, a moving distance component of the coaxiality adjusting device in the vertical direction or the horizontal direction;
and w, the eccentricity of the fixture axis of the moving part and the axis of the rotary fixture.
The invention preferably provides three parallelism adjusting means 8 uniformly, the three parallelism adjusting means 8 being located at three vertices of an equilateral triangle, the three parallelism adjusting means 8 being symmetrically arranged about a vertical plane.
Fig. 7A and 7B are schematic views showing the upward and downward runout of the parallelism adjusting apparatus 8 of the upper corner, respectively;
h=a+tan (θ) +b/cos (θ) -b when swinging upward
H=b-/cos (θ) -a tan (θ) when swinging downward
Fig. 8A and 8B show a front view and a side view, respectively, of the upward deflection of the parallelism adjusting apparatus 8 at the lower base angle, and fig. 9A and 9B show a front view and a side view, respectively, of the downward deflection of the parallelism adjusting apparatus 8 at the lower base angle.
When swinging upwards:
h=a*tan(θ)+b/cos(θ)-b
c=h*cos(60)
When swinging downwards:
h=b-〖b/cos(θ)-a*tan(θ)〗
c=h*cos(60)
h, a movement distance component of the ball head push rod in the vertical direction;
a: the axial line of the ball head push rod is away from the center of the revolution body;
b, the distance from the center of the ball head to the axis of the revolving body;
c, the actual telescopic distance of the two parallelism adjusting devices at the bottom corner of the lower part;
θ: the movable clamping jaw axis is deviated from the spindle axis.
The structure of the parallelism adjusting device 8 is similar to, but not exactly the same as, the coaxiality adjusting device 5, the parallelism adjusting device 8 comprises a parallelism adjusting mounting base 81 fixed on the moving base 1 or on the adjusting support base 2, the parallelism adjusting mounting base 81 in fig. 3A is fixed on the moving base 1, a ball head push rod 82 penetrates through a through hole in the adjusting support base 2, a ball head at the tail end of the ball head push rod 82 stretches into a ball seat 86, and the parallelism adjusting mounting base 81 is fixed on the adjusting support base 2 in the structure shown in fig. 5.
The parallelism adjusting mount 81 is provided with a ball push rod 82, a second adjusting wedge 83, a second ball screw 84, and a second driver 85, and the ball seat 86 is fixed to the rotator 6. The parallelism adjusting apparatus 8 differs from the coaxiality adjusting apparatus 5 mainly in the ball plunger 82 and the ball seat 86.
When the rotary body 6 is in operation, the second driver 85 drives the second ball screw 84 to rotate, the second ball screw 84 drives the second adjusting wedge block 83 to move through threads, the second adjusting wedge block 83 and the ball head push rod 82 are in inclined plane transmission, the transmission direction of force is changed through the mutual matching of the two inclined planes, the overhanging end of the ball head push rod 82 is provided with a spherical surface, the ball seat 86 is provided with a ball groove, the ball head at the overhanging end of the ball head push rod 82 stretches into the ball seat 86, the ball head push rod 82 and the ball seat 86 are mutually matched to form a spherical hinge, and the rotary body 6 can better realize follow-up in a spherical hinge matching mode because the rotary body 6 needs to rotate.
Referring to fig. 5, the revolving body 6 comprises 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, each arc groove 61 is distributed in a central symmetry manner with the central line of the revolving body 6, and a rotatable key 7 fixed on the adjusting support seat 2 is clamped into the arc groove 61 and can reciprocate along an arc relative to the arc groove 61.
The invention also provides an inertia friction welding machine, which comprises the adjustable movable clamp for welding typical parts of the aero-engine, and the inertia friction welding machine can achieve the same technical effects. FIG. 10 is a schematic diagram of the overall structure of the inertia friction welder 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 (10)
1. The adjustable movable clamp for welding typical parts of an aeroengine is characterized by comprising a movable base (1) and an adjusting support seat (2), wherein the movable base (1) is arranged on a sliding table and can move in an axial translation manner, and a movable clamping jaw (3) is arranged in the adjusting support seat (2);
The adjusting support seat (2) and the moving base (1) are guided to move through at least four guide keys (4), and the guide keys (4) respectively limit two-dimensional translation perpendicular to the axial direction;
At least three coaxiality adjusting devices (5) are arranged on the movable base (1), and each coaxiality adjusting device (5) is in telescopic fit, so that the adjusting support seat (2) moves in two dimensions perpendicular to the axis plane of the main shaft;
The movable clamping jaw (3) is arranged in the revolving body (6);
The revolving body (6) is connected with the adjusting support seat (2) through a rotatable key (7) which is arranged in the circumferential direction, 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 support seat (2) along the circumferential direction, and the parallelism of the revolving body (6) is adjusted by the telescopic fit of the parallelism adjusting devices (8).
2. The adjustable moving clamp for welding typical parts of aeroengines according to claim 1, wherein the coaxiality adjusting device (5) comprises a coaxiality adjusting installation seat (51) fixed on the moving base (1), a translation push rod (52), a first adjusting wedge block (53), a first ball screw (54) and a first driver (55) are respectively installed on the coaxiality adjusting installation seat (51), the first driver (55) drives the first ball screw (54) to rotate, the first ball screw (54) drives the first adjusting wedge block (53) to move in a threaded mode, the first adjusting wedge block (53) and the translation push rod (52) are in inclined-plane transmission, and the overhanging end of the translation push rod (52) is in contact driving with the adjusting support seat (2).
3. Adjustable mobile clamp for welding of aircraft engine typical parts according to claim 1, characterized in that an elastic support (11) is provided on the mobile base (1), said elastic support (11) exerting an upward bearing force on the bottom of the adjustment support seat (2).
4. An adjustable mobile clamp for welding aircraft engine parts typically according to claim 3, characterized in that a plurality of said elastic supports (11) are arranged in a crisscross array.
5. The adjustable mobile clamp for welding aircraft engine typical parts 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) being fixedly mounted on said mobile base (1), said spring (112) and said floating slider (113) being mounted inside said spring support (111), said spring (112) exerting an upward elastic force on said floating slider (113).
6. The adjustable mobile clamp for welding aircraft engine typical parts according to claim 5, characterized in that the upper surface of the floating slider (113) is provided with rollers.
7. The adjustable mobile clamp for welding of aircraft engine typical parts according to claim 5, wherein a pre-tightening force adjusting block (114) is arranged in the spring support (111), and the pre-tightening force adjusting block (114) provides support for the bottom end of the spring (112) for changing the pre-tightening force of the spring (112).
8. Adjustable mobile clamp for welding of aircraft engine typical parts according to claim 1, characterized in that said parallelism adjustment device (8) comprises a parallelism adjustment mounting base (81) fixed on said mobile base (1) or on said adjustment support base (2), on which parallelism adjustment mounting base (81) a ball push rod (82), a second adjustment wedge (83), a second ball screw (84) and a second drive (85) are mounted, a ball seat (86) being fixed on said revolving body (6);
The second driver (85) drives the second ball screw (84) to rotate, the second ball screw (84) drives the second adjusting wedge block (83) to move through threads, the second adjusting wedge block (83) and the ball head push rod (82) are in inclined plane transmission, and a ball head at the extending end of the ball head push rod (82) extends into the ball seat (86).
9. The adjustable mobile clamp for welding typical parts of aeroengines according to claim 1, 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 an arc groove (61), and said revolvable key (7) fixed on said adjustment support seat (2) is clamped into said arc groove (61).
10. An inertia friction welder comprising an adjustable moving clamp for welding aircraft engine parts typically as claimed in any one of claims 1 to 9.
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| CN202111122483.9A CN113770506B (en) | 2021-09-24 | 2021-09-24 | Adjustable mobile fixture and inertia friction welding machine for welding typical parts of aircraft engines |
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| CN202111122483.9A CN113770506B (en) | 2021-09-24 | 2021-09-24 | Adjustable mobile fixture and inertia friction welding machine for welding typical parts of aircraft engines |
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| CN113770506B true CN113770506B (en) | 2025-03-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN114406444A (en) * | 2022-03-11 | 2022-04-29 | 哈尔滨焊接研究院有限公司 | Friction welding machine axis adjusting device and friction welding machine |
| CN114453722B (en) * | 2022-03-11 | 2024-09-13 | 哈尔滨焊接研究院有限公司 | Friction welding machine axis adjustment device, slide mechanism and friction welding machine |
| CN114406445B (en) * | 2022-03-11 | 2025-07-01 | 哈尔滨焊接研究院有限公司 | Rotating isolation mechanism and friction welding machine |
| CN116100140B (en) * | 2023-04-13 | 2023-06-16 | 河南工学院 | Axle type product welding set |
| 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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| CN216177532U (en) * | 2021-09-24 | 2022-04-05 | 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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| CN206123598U (en) * | 2016-09-23 | 2017-04-26 | 江西洪都航空工业集团有限责任公司 | A high adjusting device for product butt joint |
| CN106513982A (en) * | 2016-12-15 | 2017-03-22 | 济南沃德汽车零部件有限公司 | Clamping device of friction welding machine |
| CN107971625B (en) * | 2017-11-24 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Special method for adjusting coaxiality of spindle side and tailstock side of inertia friction welding machine |
| CN111112823A (en) * | 2020-01-10 | 2020-05-08 | 北京阿李自动化科技有限公司 | An inclined wedge top wire combined fine-tuning device |
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| JPH05177364A (en) * | 1992-01-08 | 1993-07-20 | Chiyoda Corp | Friction press welding machine |
| 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 |
| CN216177532U (en) * | 2021-09-24 | 2022-04-05 | 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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