CN114029671A - Flexible positioning device for lettering of end face of turbine stator blade and using method - Google Patents
Flexible positioning device for lettering of end face of turbine stator blade and using method Download PDFInfo
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- CN114029671A CN114029671A CN202111183029.4A CN202111183029A CN114029671A CN 114029671 A CN114029671 A CN 114029671A CN 202111183029 A CN202111183029 A CN 202111183029A CN 114029671 A CN114029671 A CN 114029671A
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 description 5
- 238000010330 laser marking Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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Abstract
The invention discloses a flexible positioning device for lettering of the end face of a steam turbine stator blade and a use method thereof, in particular to the field of steam turbine blade tools, wherein a bottom plate, a middle supporting mechanism and an end face positioning mechanism are used for supporting and positioning a tile type stator blade, and the tile type stator blade comprises an inner ring end face, an outer ring end face and a middle steam passage part at two ends; the end face positioning mechanism is used for installing and positioning the end face of the inner ring, and the middle supporting mechanism is used for positioning and supporting the steam passage part. Through adjusting each subassembly relative position, guarantee work piece outer loop terminal surface level, after the same batch work piece first part confirms the position, can cooperate the marking machine to carry out the operation of carving characters, replace the manual processing of electrography, greatly reduced operation personnel intensity of labour has just promoted the work piece precision of carving characters.
Description
Technical Field
The invention relates to the field of turbine blade tools, in particular to a flexible positioning device for lettering of an end face of a turbine stator blade and a using method of the flexible positioning device.
Background
The blade is a part with more sizes, complex and different shapes and strict surface requirements. Generally, when a blade is machined or machined, a laser marking machine is needed to be used for marking blade information on one end face of the blade, and the marked content is complicated and generally comprises a unit where the blade is located, a grade, a figure number and a serial number. The level and clear handwriting of a carving area can be guaranteed by adopting a magnetic suction platform or a cushion fall block for conventional small and medium-sized moving blades, but a steam passage part is only arranged on the tile-type static blade, a root-crown-free structure is adopted, the carving area is limited, the difference of the installation angles of the inner ring and the outer ring of the large tile-type static blade is large, the total length dimension far exceeds the stroke of the carving machine, and the mode of positioning the other end face by adopting one end face is not feasible. The large-size tile-type stator blade is usually engraved by a manual electric engraving pen instead of laser engraving without an engraving positioning tool, so that on one hand, the consumption of manpower, equipment materials and the like is increased, and the production efficiency is reduced; on the other hand, the engraved information is an important source tracing basis of a client, the writing is required to be clear and accurate, but the engraving content is complicated and various, the operation process is easy to make mistakes, and the later stage risk and the operation and maintenance cost of an enterprise are increased.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a flexible positioning device for engraving the end faces of steam turbine stator blades and a using method thereof. The problem of current large-scale blade carve characters need manual work, efficiency is lower is solved, effectively shorten blade sign processing cycle, promote the production efficiency of enterprise.
The present invention achieves the above-described object by the following technical means.
A flexible positioning device for tile-type stationary blade lettering comprises a bottom plate, a middle supporting mechanism and an end face positioning mechanism; the bottom plate, the middle supporting mechanism and the end face positioning mechanism are used for supporting and positioning tile-type stationary blades, and each tile-type stationary blade comprises an inner ring end face and an outer ring end face at two ends and a middle steam passage part; the end face positioning mechanism is used for installing and positioning the end face of the inner ring, and the middle supporting mechanism is used for positioning and supporting the steam passage part.
Furthermore, the middle supporting mechanism comprises a movable screw rod, an upright post, a ratchet mechanism, a rocker arm and a holding arm; the movable screw rod is used for adjusting the front-back and left-right positions of the upright post; a height sliding block is arranged on the upright post; the height sliding block is provided with a ratchet mechanism, wherein a pawl is matched with a ratchet wheel, and the ratchet wheel is fixedly connected with the rocker arm; a sliding groove is formed in the rocker arm, and a holding arm is mounted in the sliding groove; the holding arm is used for positioning the steam passage part.
Furthermore, the ratchet wheel is connected with the height sliding block through a pin shaft or a connecting bolt.
Further, the height sliding block slides along the upright column or is fixed on the upright column through the opening or closing of the height locking key.
Further, the holding arm is slidably mounted in the sliding groove through a holding arm compensation block, and the steam passage part is positioned through a first threaded positioning pin mounted on the holding arm.
Furthermore, the upper end of the upright post is of a quadrangular structure, the lower end of the upright post is of a cylindrical structure, and the lower end of the upright post is arranged on an upright post base through a bearing; a plurality of semicircular pin holes are formed in the upper end face of the stand column base, a plurality of circular pin holes are formed in the cylindrical structure of the lower end of the stand column, and the semicircular pin holes and the circular pin holes are concentrically matched to achieve 0-360 degree rotation.
Furthermore, the semicircular pin holes are distributed at equal intervals; the angle between adjacent circular pin holes is 61 degrees and the angle between the last circular pin hole and the first circular pin hole is 55 degrees.
Further, the end face positioning mechanism comprises an end face angle compensation unit A and a second threaded positioning pin; the end face angle compensation unit A is used for supporting the end face of the inner ring; the second threaded positioning pin comprises a ball head structure at the top end and a threaded part at the tail end, wherein the ball head structure is in contact positioning with the steam passage part, and the threaded part is connected with the threaded positioning hole in the bottom plate; the end face angle compensation unit A is used for supporting the end face of the inner ring.
Furthermore, the end face angle compensation unit A comprises an angle compensation block bottom plate, a bottom plate rotating shaft, an angle compensation block contact plate and a contact plate rotating shaft; the angle compensation block bottom plate is arranged on the bottom plate, a ribbed plate is arranged on the angle compensation block bottom plate and used for supporting a bottom plate rotating shaft, an ear plate is arranged on the angle compensation block contact plate and used for supporting a contact plate rotating shaft, and the contact plate rotating shaft penetrates through the bottom plate rotating shaft; the contact plate rotating shaft can rotate relative to the bottom plate rotating shaft, and the bottom plate rotating shaft can rotate around the rib plate; the angle compensation block contact plate is in surface contact with the end face of the inner ring of the tile-type stationary blade.
The use method of the flexible positioning device for tile-type stationary blade lettering comprises the following steps:
the method comprises the following steps: measuring and calculating the compensation angle of the inner ring end face and the lettering horizontal height of the outer ring end face according to the installation angles, the total length and the chord width of the inner ring end face, the steam passage part and the outer ring end face on the tile type stationary blade design drawing;
step two: determining the position of a second threaded positioning pin according to the size of the end face of the inner ring; remove middle supporting mechanism and make and hold the arm ring and be less than the regional level of carving characters of outer loop end face shell, first screw thread locating pin and nut connect in advance on holding the arm:
step three: place tile formula stator blade to bottom plate, steam passage part back of the body arc contact second screw thread locating pin bulb portion, the contact of inner ring terminal surface and terminal surface angle compensation unit A, each subassembly position of adjustment positioning mechanism makes outer loop terminal surface level and fixed:
step four: moving the relative position of each component of the middle supporting mechanism to enable the holding arm arc to be similar to the back arc molded line of the steam passage part, and sliding the first threaded positioning pin to enable the ball head positioning surface to be contacted with the steam passage part:
step five: locking a positioning pin and a height locking key of the middle supporting mechanism, checking and screwing each connecting bolt to ensure that a workpiece is positioned stably, and placing a level gauge to check the position of the end face of the outer ring;
step six: the end face is horizontal, and the machining is started according with the requirement; if not, fine adjustment is carried out on the positions of the front-back moving lead screw and the left-right moving lead screw, so that the tile-type stationary blade is positioned.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention has a modularized end face positioning structure and a middle supporting mechanism, the positions of all components are flexible and changeable, the invention can adapt to the processing and positioning of blades with various sizes, greatly improves the flexibility of the positioning device and avoids the resource waste caused by the fact that products with different sizes are separately provided with cushion blocks with different sizes and other equipment.
2. The supporting mechanism is characterized in that the supporting mechanism is provided with a plurality of components, each component is provided with a bearing, a bolt, a key and a key groove, the supporting mechanism is stably and reliably connected, the supporting mechanism can move along three directions and rotate around two directions, the positions are combined and selected more, the connecting mode is simple and convenient, and the supporting mechanism is convenient to disassemble, install and use.
3. According to the invention, the tile-type static blades to be processed are quickly and stably positioned through the positioning mechanism and the supporting mechanism, manual operation is replaced by matching with the marking machine, the labor efficiency is improved, the marking accuracy is ensured, the outer ring end surface level of the workpiece is ensured by adjusting the relative position of each component, and after the first workpiece of the same batch of workpieces is positioned, the marking operation can be performed by matching with the marking machine, the manual processing of an electric engraving pen is replaced, the labor intensity of operating personnel is greatly reduced, and the workpiece marking precision is improved.
4. A plurality of circular pin shaft holes and semicircular pin shaft holes are formed in the lower end of the stand column and the stand column supporting seat in the middle supporting structure, and the stand column base are locked in relative positions by the fact that the locking pin penetrates through the concentric circular pin holes and the semicircular pin holes at the same time.
5. By adopting the threaded positioning pin, the upper end of the threaded positioning pin is a spherical mechanism, and the lower end of the threaded positioning pin is a threaded structure, so that the positioning of the steam passage part can be realized.
6. The ratchet is connected with the height sliding block through a pin shaft or a connecting bolt, when the ratchet is connected with the height sliding block through the pin shaft, the ratchet can rotate relative to the height sliding block, so that the position of the rocker arm can be conveniently adjusted.
Drawings
FIG. 1 is a schematic perspective view according to an embodiment of the present invention;
FIG. 2 is a top view of an overall structure according to an embodiment of the present invention;
FIG. 3 is a rear view of the overall structure to which embodiments of the present invention relate;
FIG. 4 is a schematic structural view of a left limiting fixture block according to the present invention;
FIG. 5 is a schematic structural view of the screw rod in cooperation with a left limiting block and a right limiting block;
FIG. 6 is a schematic structural view of a lead screw;
FIG. 7 is a schematic view of a semicircular pin hole structure at the upper end of the column base in the present invention;
FIG. 8 is a schematic view of a structure of a circular pin hole at the bottom end of a column in the present invention;
FIG. 9 is a partial cross-sectional view of the stud and stud base of FIG. 2 taken at A-A in accordance with the teachings of the present invention;
FIG. 10 is a partial cross-sectional view of the stud and height block of FIG. 2 taken at A-A in accordance with the present invention;
FIG. 11 is an enlarged view of a portion of the invention at A in FIG. 1;
FIG. 12 is a schematic view of the second threaded dowel locating port of FIG. 1 according to the present invention;
FIG. 13 is a schematic view of a tile-type stator blade structure to which the present invention is applied.
Reference numerals:
1-a bottom plate; 2-thread positioning holes; 3-a screw rod moving cavity; 4, moving the screw rod left and right; 5-a bearing rod; 6-moving the screw rod back and forth; 7-upright post; 8-height slide block; 9-height locking key; 10-pawl; 11-a rocker arm; 12-a holding arm; 13-a holding arm compensation block; 14-a first threaded locating pin; 15-a bearing; 16-locking pin: 17-a connecting bolt; 18-a nut; 19-compression spring; 20-left limiting fixture block; 21-right limiting fixture block; 22-column base; 23-tile type stationary blades; 231-inner ring end face; 232-steam passage part; 233-outer ring end face; 24-angle compensation baseplate; 25-a floor pivot axis; 26-angle compensation block contact plate; 27-contact plate rotation axis; 28-a limiting groove; 29-dovetail rail; 30-a second threaded locating pin; 31-a rib plate; 32-ear plate; 33-semicircular pin holes; 34-a circular pin hole; 35-moving the lead screw boss; 36-a dovetail groove; 37-semi-circular arc cavity.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
A flexible positioning device for tile-type stationary blade lettering comprises a bottom plate, a middle supporting mechanism and an end face positioning mechanism; the bottom plate 1, the middle supporting mechanism and the end face positioning mechanism are used for supporting and positioning the tile-type stationary blades 23, and each tile-type stationary blade 23 comprises an inner ring end face 231 at two ends, an outer ring end face 233 and a middle steam passage part 232; the end face positioning mechanism is used for installing and positioning the inner ring end face 231, and the intermediate support mechanism is used for positioning and supporting the steam passage part 232.
The middle supporting mechanism comprises a moving screw rod, an upright post 7, a ratchet mechanism, a rocker arm 11 and a holding arm 12; the movable screw rod is used for adjusting the front-back and left-right positions of the upright post 7; a height sliding block 8 is arranged on the upright post 7; a ratchet mechanism is arranged on the height sliding block 8, wherein a pawl 10 is matched with a ratchet wheel which is fixedly connected with a rocker arm 11; a sliding groove is formed in the rocker arm 11, and a holding arm 12 is installed in the sliding groove; the holding arm 12 is used to position the steam passage portion 232.
The ratchet wheel is connected with the height sliding block 8 through a pin shaft or a connecting bolt 17; the height slider 8 slides along the upright 7 or is fixed on the upright 7 by opening or closing the height locking key 9. The holding arm 12 is slidably mounted in the chute through a holding arm compensating block 13, and the steam passage part 232 is positioned by a first threaded positioning pin 14 mounted on the holding arm 12.
The upper end of the upright post 7 is of a quadrangular structure, the lower end of the upright post 7 is of a cylindrical structure, and the lower end of the upright post 7 is arranged on an upright post base 22 through a bearing 15; a plurality of semicircular pin holes 33 are formed in the upper end face of the stand column base 22, a plurality of circular pin holes 34 are formed in a cylindrical structure at the lower end of the stand column 7, and the semicircular pin holes 33 and the circular pin holes 34 are concentrically matched to realize 0-360 degree rotation.
The end face positioning mechanism comprises an end face angle compensation unit A and a second threaded positioning pin 30; the end face angle compensation unit a is used for supporting the inner ring end face 231; the second threaded positioning pin 30 comprises a ball head structure at the top end and a threaded part at the tail end, wherein the ball head structure is in contact positioning with the steam passage part 232, and the threaded part is connected with the threaded positioning hole 2 on the bottom plate 1; the end face angle compensation unit a serves to support the inner ring end face 231.
Wherein, the end face angle compensation unit a comprises an angle compensation block bottom plate 24, a bottom plate rotating shaft 25, an angle compensation block contact plate 26 and a contact plate rotating shaft 27; the angle compensation block bottom plate 24 is arranged on the bottom plate 1, a rib plate 31 is arranged on the angle compensation block bottom plate 24, the rib plate 31 is used for supporting the bottom plate rotating shaft 25, an ear plate 32 is arranged on the angle compensation block contact plate 26, the ear plate 32 is used for supporting the contact plate rotating shaft 27, and the contact plate rotating shaft 27 penetrates through the bottom plate rotating shaft 25; the contact plate rotating shaft 27 is rotatable with respect to the base plate rotating shaft 25, and the base plate rotating shaft 25 is rotatable around the rib 31; the angle compensating block contact plate 26 is in face contact with the inner ring end of the tile vane 23.
Referring to fig. 1 to 3, a flexible positioning device for tile-type stationary blade lettering comprises a bottom plate 1, an intermediate support mechanism and an end face positioning mechanism, wherein an inner ring end face 231 of a tile-type stationary blade 23 is installed and positioned by the end face positioning mechanism, a steam passage part 232 of the tile-type stationary blade 23 is supported by the intermediate support mechanism, and the bottom plate 1, the intermediate support mechanism and the end face positioning mechanism jointly ensure that a lettering working area of the tile-type stationary blade 23 keeps horizontal and static.
The front surface of the bottom plate 1 is provided with a plurality of threaded positioning holes 2 which are regularly arranged at fixed distances, a screw rod moving cavity 3 and supporting legs 15; the movable screw rod of the middle supporting mechanism comprises a front-back movable screw rod 6, a left-right movable screw rod 4 penetrates through the bottom plate limiting groove 28 to be connected with the upright post base 22; the left limiting fixture block 20 and the right limiting fixture block 21 are locked on the dovetail guide rail 29 through the connection bolt 17 and the corresponding nut 18 in a matched mode and can slide left and right along the dovetail guide rail 29. The bearing rod 5 penetrates through the left and right symmetrically arranged unthreaded holes at the lower end of the upright post base 22, and the cylindrical surface is in contact with the limiting groove of the lead screw moving cavity 28, so that the upright post 7 can move and simultaneously bear the acting force of the middle supporting mechanism. The lower end of the upright column base 22 is provided with vertically arranged threaded holes at different heights; the front-back moving screw rod 6 and the left-right moving screw rod 4 penetrate through the threaded holes to be connected with the upright post base 22, and the upright post base 22 is controlled to move along two vertical directions. One end of the rocker arm 11 is of a ratchet structure and is provided with a U-shaped through groove, and the rocker arm 11 is connected with the reserved threaded hole of the height slider 8 in a matched mode through a bolt 17; the pawl 10 is connected with the height slider 8 through a screw at a fixed position and is in contact with the ratchet structure to lock the rotation direction and the rotation angle of the control rocker 11. The holding arm 12 is of an arc structure and the surface thereof is provided with a U-shaped through groove. One end surface of the holding arm compensation block 13 is a concave arc surface with the same radius as the arc of the holding arm 12. The holding arm 12 and the holding arm compensation block 13 are connected and fixed on the rocker arm 11 through a connecting bolt 17 and a nut 18. The upper end of the threaded positioning pin 14 is of a ball head structure, is in contact with the steam passage of the tile-type stationary blade 23 to provide supporting force, and is connected and locked on the rocker arm 11 through a nut 18.
Referring to fig. 4 to 6, the left limiting fixture block 20 and the right limiting fixture block 21 are respectively provided with a semicircular arc cavity 37 and a dovetail groove 36, the semicircular arc cavity 37 is in surface contact with the movable lead screw boss 35, and the dovetail groove 36 is in contact with the dovetail guide rail of the bottom plate, so that the horizontal movement of the movable lead screw is met, and the lead screw is effectively prevented from moving back and forth.
Referring to fig. 7 to 10, the upright 7 of the intermediate support mechanism is mounted on an upright base 22 through a bearing 15, so as to realize relative rotation between the upright 7 and the upright base 22. The upper end of the column base 22 is circumferentially provided with 60 semicircular pin holes 33 with the interval of 6 degrees; the bottom end of the upright post 7 is also a cylinder, and 6 circular pin holes 34 are arranged along the circumferential radius of the upper end surface of the upright post base 22, and as can be seen from the figure with reference to fig. 8, there are 6 circular pin holes 34 arranged on the upright post base 22, wherein, the included angle between 5 adjacent circular pin holes 34 is 61 °, and the included angle between 1 adjacent circular pin hole 34 is 55 °, which can also be described as follows: the last of said circular pin holes 34 is at an angle of 55 degrees to the first of said circular pin holes 34 and the remaining adjacent of said circular pin holes 34 is at an angle of 61 degrees, the last of said circular pin holes 34 beginning randomly with the first of said circular pin holes 34, fig. 8 being but one embodiment. Different circular pin holes 34 and semicircular pin holes 33 are concentrically matched to realize the rotation of 0-360 degrees. The locking pin 16 passes through both concentric circular pin holes 34 and semi-circular pin holes 33 to lock the rotational position. The height sliding block 8 is of an integral square sleeve structure, and the side surface of the height sliding block is provided with a groove, a threaded hole and a guide rail; the height locking key 9 moves along the guide rail of the height sliding block 8 through the side guide groove, and the height locking key is embedded into the reserved triangular key groove on the side surface of the upright post 7 under the elastic force of the compression spring 19 to be fixed.
Referring to fig. 11 and 12, the end face positioning mechanism includes an end face angle compensation unit a and two second threaded positioning pins 30. The end face angle compensation unit a is used for supporting the inner ring end face 231 of the tile-type stationary blade 23; the top end of the second threaded positioning pin 30 is of a ball head structure, the ball head is in contact with back arcs on two sides of the steam passage part 232 of the tile-type stationary blade 23 to position blades, and the tail end threads are matched with the threaded positioning holes 2 in the bottom plate 1 to be connected with the bottom plate 1. The end face angle compensation unit a includes an angle compensation block base plate 24, a base plate rotation shaft 25, an angle compensation block contact plate 26, and a contact plate rotation shaft 27; the angle compensation block bottom plate 24 is arranged on the bottom plate 1, a rib plate 31 is arranged on the angle compensation block bottom plate 24, the rib plate 31 is used for supporting the bottom plate rotating shaft 25, an ear plate 32 is arranged on the angle compensation block contact plate 26, the ear plate 32 is used for supporting the contact plate rotating shaft 27, and the contact plate rotating shaft 27 penetrates through the bottom plate rotating shaft 25; the contact plate rotating shaft 27 is rotatable with respect to the base plate rotating shaft 25, and the base plate rotating shaft 25 is rotatable around the rib 31; the angle compensating block contact plate 26 is in face contact with the inner ring end of the tile vane 23.
Specifically, the bottom plate rotating shaft 25 and the contact plate rotating shaft 26 are connected with the wing corner through holes in a cross manner and are locked by nuts. The angle compensation unit contact plate 26 on the end surface can rotate around two rotating shafts to form a corresponding included angle to compensate the angle formed by the inner ring end surface 231 of the tile-type stator blade 23 and the plane of the bottom plate 1, and the tile-type stator blade 23 is positioned; the angle compensation block bottom plate 24 is provided with a threaded hole, and the connecting bolt 17 is connected and fixed with the bottom plate 1 through the threaded hole.
The invention adopts a plurality of movable components, has flexible and changeable positions and can adapt to the processing and positioning of blades with various sizes. The position of the second threaded positioning pin 30 is determined according to the size of the inner ring end face of the tile-type stationary blade 23, and the inner ring end face 231 is in contact with the end face angle compensation unit a. The middle supporting mechanism is moved to enable the ring of the holding arm 12 to be lower than the horizontal height of the lettering area of the outer ring end surface 233 shell, the first threaded positioning pin 14 and the nut 18 are connected to the holding arm 12 in advance, and the positions of all components of the positioning mechanism are adjusted to enable the outer ring end surface 233 to be horizontal and fixed. Locking the middle support mechanism positioning pin 16 and the height locking key 9, and placing a level meter to check the position of the outer ring end surface 233 of the tile type stationary blade. After the horizontal static state, the laser marking machine can be matched with a marking machine to realize laser marking operation, so that the purposes of replacing manual operation, improving labor efficiency and ensuring marking accuracy are achieved.
The first threaded dowel 14 and the second threaded dowel 30 have the same structure, and include a ball head structure at the top end and a threaded portion at the tail end.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (10)
1. A flexible positioning device for tile-type stationary blade lettering is characterized by comprising a bottom plate (1), a middle supporting mechanism and an end face positioning mechanism; the bottom plate (1), the middle supporting mechanism and the end face positioning mechanism are used for supporting and positioning the tile-type stationary blades (23), and each tile-type stationary blade (23) comprises an inner ring end face (231) at two ends, an outer ring end face (233) and a middle steam passage part (232); wherein, the end face positioning mechanism is used for installing and positioning an inner ring end face (231), and the middle supporting mechanism is used for positioning and supporting the steam passage part (232).
2. The flexible positioning device for tile-type stationary blade lettering according to claim 1, wherein the intermediate support mechanism comprises a moving lead screw, a column (7), a ratchet mechanism, a rocker arm (11) and a holding arm (12); the movable screw rod is used for adjusting the front-back and left-right positions of the upright post (7); a height sliding block (8) is arranged on the upright post (7); a ratchet mechanism is arranged on the height sliding block (8), wherein a pawl (10) is matched with a ratchet wheel, and the ratchet wheel is fixedly connected with a rocker arm (11); a sliding groove is formed in the rocker arm (11), and a holding arm (12) is installed in the sliding groove; the holding arm (12) is used to position the steam passage portion (232).
3. The flexible positioning device for tile-type stationary blade lettering as claimed in claim 2, wherein said ratchet wheel is connected with a height slider (8) by a pin or a connecting bolt (17).
4. The flexible positioning device for tile-type stationary blade lettering according to claim 2, wherein the height slider (8) is slid along the upright (7) or fixed to the upright (7) by opening or closing of a height locking key (9).
5. The flexible positioning device for tile-type stationary blade lettering as recited in claim 2, wherein said holder arm (12) is slidably mounted in a slide groove by a holder arm compensation block (13), and said steam passage portion (232) is positioned by a first threaded positioning pin (14) mounted on the holder arm (12).
6. The flexible positioning device for tile-type stationary blade lettering as recited in claim 2, wherein the upper end of the upright post (7) is of a quadrangular prism structure, the lower end of the upright post (7) is of a cylindrical structure, and the lower end of the upright post (7) is mounted on an upright post base (22) through a bearing (15); a plurality of semicircular pin holes (33) are formed in the upper end face of the stand column base (22), a plurality of circular pin holes (34) are formed in a cylindrical structure at the lower end of the stand column (7), and the semicircular pin holes (33) and the circular pin holes (34) are concentrically matched to realize 0-360 degree rotation.
7. The flexible positioning device for tile-type stationary blade lettering as claimed in claim 6, wherein said semicircular pin holes are 60 equally spaced apart; the number of the round pin holes (34) is 6, the angle between the last round pin hole (34) and the first round pin hole (34) is 55 degrees, and the angle between the other adjacent round pin holes (34) is 61 degrees.
8. The flexible positioning device for tile-type stationary blade lettering according to claim 1, wherein said end face positioning mechanism comprises an end face angle compensation unit a and a second threaded positioning pin (30); the end face angle compensation unit A is used for supporting an inner ring end face (231); the second threaded positioning pin (30) comprises a ball head structure at the top end and a threaded part at the tail end, wherein the ball head structure is in contact positioning with the steam passage part (232), and the threaded part is connected with the threaded positioning hole (2) in the bottom plate (1); the end face angle compensation unit A is used for supporting an inner ring end face (231).
9. The flexible positioning device for tile-type stationary blade lettering as recited in claim 8, wherein said end face angle compensation unit a comprises an angle compensation block base plate (24), a base plate rotation shaft (25), an angle compensation block contact plate (26) and a contact plate rotation shaft (27); the angle compensation block bottom plate (24) is arranged on the bottom plate (1), a rib plate (31) is arranged on the angle compensation block bottom plate (24), the rib plate (31) is used for supporting the bottom plate rotating shaft (25), an ear plate (32) is arranged on the angle compensation block contact plate (26), the ear plate (32) is used for supporting the contact plate rotating shaft (27), and the contact plate rotating shaft (27) penetrates through the bottom plate rotating shaft (25); the contact plate rotating shaft (27) can rotate relative to the bottom plate rotating shaft (25), and the bottom plate rotating shaft (25) can rotate around the rib plate (31); the angle compensation block contact plate (26) is in surface contact with the inner ring end face of the tile-type stator blade (23).
10. Use of the flexible positioning device for tile-type stationary blade lettering according to any one of claims 1 to 9, characterized by comprising the steps of:
the method comprises the following steps: measuring and calculating the compensation angle of the inner ring end face (231) and the lettering horizontal height of the outer ring end face (233) according to the installation angle, the total length and the chord width of the inner ring end face (231), the steam passage part (232) and the outer ring end face (233) on the design drawing of the tile-type stationary blade (23);
step two: determining the position of a second threaded positioning pin (30) according to the size of the end face (231) of the inner ring; moving the middle support mechanism to enable the circular ring of the holding arm (12) to be lower than the horizontal height of the lettering area of the outer ring end surface (233), and connecting the first threaded positioning pin (14) and the nut (18) on the holding arm (12) in advance;
step three: placing the tile-type stationary blade (23) to the bottom plate (1), enabling the back arc of the steam passage part (232) to contact with the ball head part of the second threaded positioning pin (14), enabling the inner ring end face (231) to contact with the end face angle compensation unit A, and adjusting the positions of all components of the positioning mechanism to enable the outer ring end face (233) to be horizontal and fixed;
step four: moving the relative position of each component of the middle support mechanism to enable the arc of the holding arm (12) to be similar to the back arc line of the steam passage part (232), and sliding the first threaded positioning pin (14) to enable the ball positioning surface to be contacted with the steam passage part (232):
step five: locking a middle supporting mechanism positioning pin (16) and a height locking key (9), checking and screwing each connecting bolt (17) to ensure that a workpiece is positioned stably, and placing a level gauge to check the position of an outer ring end face (233);
step six: the end face is horizontal, and the machining is started according with the requirement; if not, the positions of the front-back moving screw rod (6) and the left-right moving screw rod (4) are finely adjusted so as to realize the positioning of the tile-type stationary blade (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111183029.4A CN114029671B (en) | 2021-10-11 | 2021-10-11 | Flexible positioning device for engraving end faces of stationary blades of steam turbine and application method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111183029.4A CN114029671B (en) | 2021-10-11 | 2021-10-11 | Flexible positioning device for engraving end faces of stationary blades of steam turbine and application method |
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| CN114029671B CN114029671B (en) | 2024-03-19 |
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| CN111069810A (en) * | 2019-12-26 | 2020-04-28 | 珠海格力智能装备有限公司 | Feeding device and production equipment of cross-flow fan blade |
| CN111975672A (en) * | 2020-07-24 | 2020-11-24 | 江苏大学 | Blade measuring clamp and measuring method |
| CN113231845A (en) * | 2021-04-20 | 2021-08-10 | 戴克(天津)航空科技有限责任公司 | Fixed processing refabrication device of stationary blade subassembly centre gripping of aviation fan export direction |
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| CN204913141U (en) * | 2015-07-31 | 2015-12-30 | 安徽安风风机有限公司 | Axial fan impeller welding position device |
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| CN114029671B (en) | 2024-03-19 |
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