CN114029671B - Flexible positioning device for engraving end faces of stationary blades of steam turbine and application method - Google Patents
Flexible positioning device for engraving end faces of stationary blades of steam turbine and application method Download PDFInfo
- Publication number
- CN114029671B CN114029671B CN202111183029.4A CN202111183029A CN114029671B CN 114029671 B CN114029671 B CN 114029671B CN 202111183029 A CN202111183029 A CN 202111183029A CN 114029671 B CN114029671 B CN 114029671B
- Authority
- CN
- China
- Prior art keywords
- face
- positioning
- tile
- bottom plate
- threaded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 59
- 238000012545 processing Methods 0.000 claims abstract description 8
- 238000013461 design Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010147 laser engraving Methods 0.000 description 2
- 238000010330 laser marking Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining 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
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
Abstract
The invention discloses a flexible positioning device for engraving end faces of turbine stator blades and a use method thereof, and particularly relates to the field of turbine blade tools; 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, behind the fixed position of work piece first spare of same batch, can cooperate the marking machine to carry out the operation of carving characters, replace the manual processing of electric carving pen, greatly reduced operating personnel intensity of labour and promoted work piece marking precision.
Description
Technical Field
The invention relates to the field of turbine blade tools, in particular to a flexible positioning device for engraving end faces of turbine stator blades and a using method thereof.
Background
The blade is a part with more sizes, complex and different shapes and strict surface requirements. In general, when the blade is machined or in the machining process, a laser marking machine is required to be used for marking blade information on one end face of the blade, and the marked content is tedious and generally comprises a unit, a level, a figure number and a serial number of the blade. The conventional small and medium-sized static blade adopts a magnetic suction platform or a pad drop block to ensure that the lettering area is horizontal and the lettering is clear, but only a steam passage part is reserved for the tile type static blade, the lettering area is limited without a root crown structure, the difference of the mounting angles of the inner ring and the outer ring of the large tile type static blade is large, the total length size is far beyond the stroke of the lettering machine, and the mode of positioning the other end face by adopting one end face is often not feasible. Under the condition of no engraving positioning tool, the large-size tile-type stationary blade usually adopts manual electrography engraving to replace laser engraving operation, so that on one hand, the consumption of manpower, equipment materials and the like can be increased, and the production efficiency is reduced; on the other hand, the carved information is an important tracing basis of clients, so that the handwriting is required to be clear and accurate, but the carved writing content is various, the operation process is very easy to make mistakes, and the later-stage risk and the operation and maintenance cost of enterprises are increased.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a flexible positioning device for engraving end faces of turbine stator blades and a use method thereof, and the device can adapt to tile-type stator blades with different sizes to realize positioning, so that the engraving end faces of workpieces are horizontal and are matched with a laser engraving machine for processing. The problem that the existing large-scale blade is required to be manually operated and has low efficiency is solved, the blade identification processing period is effectively shortened, and the production efficiency of enterprises is improved.
The present invention achieves the above technical object by the following means.
A flexible positioning device for engraving tile-type stationary blades comprises a bottom plate, a middle supporting mechanism and an end face positioning mechanism; the bottom plate, the middle supporting mechanism and the end surface positioning mechanism are used for supporting and positioning the tile-type stationary blades, and the tile-type stationary blades comprise inner ring end surfaces, outer ring end surfaces and middle steam passage parts 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.
Further, 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 and rear and left and right positions of the upright post; the upright post is provided with a height sliding block; 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 a rocker arm; a sliding groove is formed in the rocker arm, and a holding arm is arranged in the sliding groove; the holding arm is used for positioning the steam passage part.
Further, the ratchet wheel is connected with the height sliding block through a pin shaft or a connecting bolt.
Further, the height slider is slid along the upright or fixed to the upright by opening or closing the height lock key.
Further, the holding arm is slidably mounted in the chute through a holding arm compensation block, and the steam passage portion is positioned through a first threaded positioning pin mounted on the holding arm.
Further, the upper end of the upright post is of a quadrangular prism structure, the lower end of the upright post is of a cylindrical structure, and the lower end of the upright post is arranged on the 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 at the lower end of the stand column, and the semicircular pin holes and the circular pin holes are concentrically matched to realize 0-360-degree rotation.
Further, the semicircular pin holes are distributed at 60 equal intervals; the angle between adjacent circular pin holes is 61 deg., and the angle between the last and first of said circular pin holes is 55 deg..
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 locating pin comprises a ball head structure at the top end and a threaded part at the tail end, wherein the ball head structure is positioned in contact with the steam passage part, and the threaded part is connected with a threaded locating hole on the bottom plate; the end face angle compensation unit A is used for supporting the end face of the inner ring.
Further, 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 rib 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 plates; 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 application method of the flexible positioning device for engraving the tile type stationary blade comprises the following steps of:
step one: 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 stator blade design drawing;
step two: determining the position of a second threaded locating pin according to the size of the end face of the inner ring; the middle supporting mechanism is moved to enable the circular ring of the holding arm to be lower than the horizontal height of the lettering area of the outer ring end face shell, and the first threaded locating pin and the nut are connected to the holding arm in advance:
step three: placing tile-type stationary blades on the bottom plate, enabling a back arc of a steam channel part to contact with a ball head part of a second threaded locating pin, enabling the end face of an inner ring to contact with an end face angle compensation unit A, and adjusting the positions of components of a locating mechanism to enable the end face of an outer ring to be horizontal and fixed:
step four: and (3) moving the relative positions of all components of the intermediate supporting mechanism to enable the arc of the holding arm 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 in contact 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 the positioning stability of the workpiece, and placing a level gauge to check the end face position of the outer ring;
step six: the end surface is horizontal, and the processing is started according with the requirements; if the position of the guide screw is not horizontal, the guide screw is finely adjusted to move back and forth and move left and right, so that the positioning of the tile-type stationary blade is realized.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention has the modularized end face positioning structure and the middle supporting mechanism, the positions of the 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 need of independently matching different-size cushion blocks and other devices for products with different sizes.
2. The support mechanism is characterized in that the support mechanism is connected with the key groove through the bearing, the bolt and the key, the support mechanism can move along three directions and rotate around two directions, the position combination is multiple, the connection mode is simple and convenient, and the disassembly and the installation are convenient.
3. According to the invention, the tile-type stationary blade to be processed is rapidly and stably positioned through the positioning mechanism and the supporting mechanism, the marking machine is matched, manual operation is replaced, the labor efficiency is improved, the marking accuracy is ensured, the relative positions of all components are regulated, the end face level of the outer ring of the workpiece is ensured, after the positions of the first workpiece in the same batch are determined, the marking operation can be carried out by matching with the marking machine, the manual processing of an electric marking pen is replaced, the labor intensity of operators is greatly reduced, and the marking accuracy of the workpiece is improved.
4. A plurality of round pin shaft holes and semicircular pin shaft holes are formed in the lower end of the upright post and the upright post supporting seat in the middle supporting structure, and the relative position between the upright post and the upright post base is locked by the locking pin which simultaneously penetrates through the concentric round pin holes and the semicircular pin holes.
5. By adopting the threaded locating pin, the upper end of the threaded locating pin is a spherical mechanism, and the lower end of the threaded locating pin is a threaded structure, the steam passage part can be located.
6. The ratchet is connected with the height slider through the round pin axle or connecting bolt, and when the ratchet passes through the round pin axle and is connected with the height slider, the ratchet relatively high slider can rotate to conveniently adjust the position of rocking arm, when the ratchet passes through the bolt and is connected with the height slider, when the position of the relatively high slider of rocking arm of want to adjust, can loosen the bolt earlier and then adjust, when not needing to adjust the position of the relatively high slider of rocking arm, this structural design stability of cooperation pawl and ratchet during operation is higher.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a top view of a unitary structure according to an embodiment of the present invention;
FIG. 3 is a rear view of the overall structure according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a left limit block according to the present invention;
FIG. 5 is a schematic structural view of the screw rod matched with the left limiting block and the right limiting block;
FIG. 6 is a schematic view of the structure of a lead screw;
FIG. 7 is a schematic view of the semi-circular pin hole structure of the upper end of the column base of the present invention;
FIG. 8 is a schematic view of the circular pin hole structure at the bottom end of the upright post in the invention;
FIG. 9 is a partial cross-sectional view of the column and column base of FIG. 2 at A-A in accordance with the present invention;
FIG. 10 is a partial cross-sectional view of the post and height slider of FIG. 2 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 structure of the second threaded dowel pin locating steam passage portion of FIG. 1 of the present invention;
FIG. 13 is a schematic view of a tile vane structure to which the present invention is applicable.
Reference numerals:
1-a bottom plate; 2-a thread positioning hole; 3-a lead screw moving cavity; 4-moving the screw rod left and right; 5-a bearing rod; 6-moving the screw rod back and forth; 7-stand columns; 8-height slide blocks; 9-height locking key; 10-pawl; 11-rocker arms; 12-holding arms; 13-a holding arm compensation block; 14-a first threaded dowel pin; 15-a bearing; 16-locking pin: 17-connecting bolts; 18-a nut; 19-compressing a spring; 20-a left limit clamping block; 21-a right limit clamping block; 22-a column base; 23-tile type stationary vanes; 231-inner ring end face; 232-steam passage section; 233-outer ring end face; 24-angle compensation block bottom plate; 25-a base plate rotation axis; 26-angle compensation block contact plate; 27-a contact plate rotation axis; 28-a limit groove; 29-dovetail rail; 30-a second threaded dowel pin; 31-rib plates; 32-ear plates; 33-semicircular pin holes; 34-round pin holes; 35-moving the screw boss; 36-dovetail groove; 37-semi-circular arc cavity.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
A flexible positioning device for engraving tile-type stationary blades 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 surface positioning mechanism are used for supporting and positioning the tile-type stator blades 23, and the tile-type stator blades 23 comprise inner ring end surfaces 231, outer ring end surfaces 233 and middle steam passage parts 232 at two ends; wherein the end surface positioning mechanism is used for installing and positioning the inner ring end surface 231, and the middle supporting mechanism is used for positioning and supporting the steam passage part 232.
The middle supporting mechanism comprises a movable screw rod, a stand column 7, a ratchet mechanism, a rocker arm 11 and a holding arm 12; the movable screw is used for adjusting the front and back and left and right positions of the upright post 7; the upright post 7 is provided with a height sliding block 8; 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 arranged in the sliding groove; the arm 12 is used to locate 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 is slid along the column 7 or fixed to the column 7 by opening or closing the height lock key 9. The holding arm 12 is slidably mounted in the chute by means of a holding arm compensation block 13, and the steam passage portion 232 is positioned by means of a first threaded positioning pin 14 mounted on the holding arm 12.
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 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 the 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 full-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 positioned in contact with the steam passage part 232, and the threaded part is connected with the threaded positioning hole 2 on the bottom plate 1.
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 rotation shaft 27 is rotatable relative to the base plate rotation shaft 25, and the base plate rotation shaft 25 is rotatable around the rib 31; the angle compensation block contact plate 26 is in surface contact with the inner ring end surface of the tile-type stationary blade 23.
Referring to fig. 1 to 3, a flexible positioning device for engraving tile-type stator blades comprises a bottom plate 1, a middle supporting mechanism and an end surface positioning mechanism, wherein an inner ring end surface 231 of each tile-type stator blade 23 is installed and positioned by means of the end surface positioning mechanism, a steam passage part 232 of each tile-type stator blade 23 is supported by the middle supporting mechanism, and the bottom plate 1, the middle supporting mechanism and the end surface positioning mechanism jointly ensure that the engraving working area of each tile-type stator blade 23 is kept horizontally stationary.
The front surface of the bottom plate 1 is provided with a plurality of thread positioning holes 2, a screw rod moving cavity 3 and supporting feet which are regularly arranged at fixed distances; the movable screw rod of the middle supporting mechanism comprises a front-back movable screw rod 6 and a left-right movable screw rod 4 which penetrate through the bottom plate limiting groove 28 to be connected with the upright post base 22; the left limit clamping block 20 and the right limit clamping block 21 are locked on the dovetail guide rail 29 through the cooperation of the connecting bolts 17 and the corresponding nuts 18, and can slide left and right along the dovetail guide rail 29. The bearing rod 5 passes through the left and right symmetrically arranged unthreaded holes at the lower end of the upright post base 22, and the cylindrical surface is contacted with the limit groove of the screw rod moving cavity 28, so that the action force of the intermediate supporting mechanism is borne while the upright post 7 moves. The lower end of the upright post 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 pass 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 sliding block 8 in a matched mode through a bolt 17; the pawl 10 is connected with the height sliding block 8 through a screw to fix the position and contacts with the ratchet structure to lock the rotation direction and the rotation angle of the control rocker arm 11. The holding arm 12 is in a circular arc structure and is provided with a U-shaped through groove on the surface. 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 fixedly connected to the rocker arm 11 through a connecting bolt 17 and a nut 18. The upper end of the threaded locating pin 14 is of a ball head structure, is contacted 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 by the nut 18.
Referring to fig. 4 to 6, the left limit fixture block 20 and the right limit fixture block 21 are respectively provided with a semicircular cavity 37 and a dovetail groove 36, the semicircular cavities 37 are in surface contact with the boss 35 of the movable screw, the dovetail grooves 36 are in contact with the dovetail guide rail of the bottom plate, and the horizontal left-right movement of the movable screw is met while the front-back movement of the screw is effectively prevented.
Referring to fig. 7 to 10, the upright 7 of the intermediate support mechanism is mounted on the upright base 22 by bearings 15 to allow relative rotation between the upright 7 and the upright base 22. The upper end of the upright post base 22 is provided with 60 semicircular pin holes 33 with a 6-degree interval along the circumference; the bottom end of the upright post 7 is a cylinder, 6 round pin holes 34 are formed along the circumference radius of the upper end face of the upright post base 22, and in combination with fig. 8, it can be seen from the figure that 6 round pin holes 34 are formed on the upright post base 22, wherein an included angle between 5 adjacent round pin holes 34 is 61 degrees, and an included angle between 1 adjacent round pin hole 34 is 55 degrees, which can also be described as follows: the angle between the last circular pin hole 34 and the first circular pin hole 34 is 55 deg., the angle between the remaining adjacent circular pin holes 34 is 61 deg., the last circular pin hole 34 and the first circular pin hole 34 are randomly started, and fig. 8 is only one embodiment. The concentric cooperation of the different round pin holes 34 and the semicircular pin holes 33 can realize the rotation of 0-360 degrees. The locking pin 16 passes through both the concentric circular pin hole 34 and the semicircular pin hole 33 to lock the rotational position. The height sliding block 8 is of an integral square sleeve structure, and a groove, a threaded hole and a guide rail are arranged on the side face of the height sliding block; the height locking key 9 moves along the guide rail of the height sliding block 8 through the side guide groove, and the elastic force of the compression spring 19 is embedded into the reserved triangular key groove at the side surface of the upright post 7 to fix the height.
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 stator blade 23; the top end of the second threaded locating pin 30 is of a ball head structure, the ball head contacts with back arcs on two sides of the steam passage part 232 of the tile-type static blade 23 to locate the blade, and the tail end threads are matched with the threaded locating holes 2 on the base plate 1 to be connected with the base plate 1. The end face angle compensation unit a includes an angle compensation block bottom plate 24, a bottom 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 rotation shaft 27 is rotatable relative to the base plate rotation shaft 25, and the base plate rotation shaft 25 is rotatable around the rib 31; the angle compensation block contact plate 26 is in surface contact with the inner ring end surface of the tile-type stationary blade 23.
Specifically, the bottom plate rotating shaft 25 and the contact plate rotating shaft 26 are connected with each wing angle through hole in a cross shape and are locked by nuts. The angle compensation unit contact plate 26 of the end face can rotate around two rotation shafts to form a corresponding included angle to compensate the angle formed by the inner ring end face 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 fixedly connected 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 screw positioning pin 30 is determined according to the size of the inner ring end face of the tile-type stator 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 circular ring of the holding arm 12 to be lower than the horizontal height of the engraving area of the outer ring end surface 233, 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 supporting mechanism locating pin 16 and the height locking key 9, and placing the level gauge to check the position of the tile-type stator blade outer ring end surface 233. After the horizontal stand, the marking machine can be matched with a marking machine to realize laser marking operation, thereby achieving the purposes of replacing manual operation, improving labor efficiency and ensuring marking accuracy.
Wherein the first threaded dowel 14 and the second threaded dowel 30 are identical in structure, including a ball head structure at the top end and a threaded portion at the end.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention.
Claims (7)
1. The flexible positioning device for engraving the tile-type stationary blade is characterized by comprising a bottom plate (1), a middle supporting mechanism and an end surface positioning mechanism; the bottom plate (1), the middle supporting mechanism and the end surface positioning mechanism are used for supporting and positioning the tile-type stationary blades (23), and the tile-type stationary blades (23) comprise inner ring end surfaces (231), outer ring end surfaces (233) and middle steam passage parts (232) at two ends; 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);
the middle supporting mechanism comprises a movable 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 and back and left and right positions of the upright post (7); the upright post (7) is provided with a height sliding block (8); 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 arranged in the sliding groove; -the holding arm (12) is used to position the steam passage portion (232);
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 an inner ring end face (231); the second threaded locating 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 location with the steam passage part (232), and the threaded part is connected with a threaded locating hole (2) on the bottom plate (1); 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 a 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 a 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 surface of the tile-type stationary blade (23).
2. Flexible positioning device for tile vane lettering according to claim 1, characterized in that the ratchet wheel is connected to the height slider (8) by means of a pin or a connecting bolt (17).
3. Flexible positioning device for tile vane lettering according to claim 2, characterized in that the height slider (8) is slid along the upright (7) or fixed on the upright (7) by the opening or closing of the height locking key (9).
4. A flexible positioning device for tile vane lettering according to claim 3, characterized in that the holding arm (12) is slidably mounted in the chute by means of a holding arm compensation block (13), the steam duct portion (232) being positioned by means of a first threaded positioning pin (14) mounted on the holding arm (12).
5. The flexible positioning device for engraving tile-type stationary blades according to claim 1, characterized in that the upper end of the upright post (7) is of a quadrangular prism structure, the lower end of the upright post 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 upright post base (22), a plurality of circular pin holes (34) are formed in the cylindrical structure at the lower end of the upright post (7), and the semicircular pin holes (33) and the circular pin holes (34) are concentrically matched to realize 0-360-degree rotation.
6. The flexible positioning device for tile type stator blade lettering according to claim 5, wherein the semicircular pin holes are distributed at 60 equal intervals; 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 rest adjacent round pin holes (34) is 61 degrees.
7. The method of using a flexible positioning device for tile vane lettering according to claim 4, comprising the steps of:
step one: according to the installation angles, total length and chord width dimensions of the inner ring end face (231), the steam channel part (232) and the outer ring end face (233) on the design drawing of the tile-type stationary blade (23), calculating the compensation angle of the inner ring end face (231) and the inscription horizontal height of the outer ring end face (233);
step two: determining the position of a second threaded locating pin (30) according to the size of the inner ring end surface (231); moving the middle supporting mechanism to enable the circular ring of the holding arm (12) to be lower than the horizontal height of the inscription area of the end face (233) of the outer ring, and connecting a first threaded positioning pin (14) and a nut (18) on the holding arm (12) in advance;
step three: placing the tile-type stationary blades (23) on the bottom plate (1), enabling a steam passage part (232) to contact a ball head part of the second threaded locating pin (30) in a back arc manner, enabling an inner ring end face (231) to contact an end face angle compensation unit A, and adjusting the positions of all components of the locating device to enable an outer ring end face (233) to be horizontal and fixed;
step four: and (3) moving the relative positions of all components of the intermediate support mechanism to enable the arc of the holding arm (12) to be similar to the back arc molded line of the steam passage part (232), and sliding the first threaded positioning pin (14) to enable the ball head positioning surface to be in contact with the steam passage part (232):
step five: locking a positioning pin (16) and a height locking key (9) of the middle supporting mechanism, checking and screwing each connecting bolt (17) to ensure the positioning stability of a workpiece, and placing a level gauge to check the position of the end face (233) of the outer ring;
step six: the end surface is horizontal, and the processing is started according with the requirements; if the position of the guide screw (6) is moved back and forth and the position of the guide screw (4) is moved left and right after the position is not horizontal, so that the positioning of the tile-type stationary blades (23) is realized.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114029671A CN114029671A (en) | 2022-02-11 |
| CN114029671B true CN114029671B (en) | 2024-03-19 |
Family
ID=80135068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111183029.4A Active CN114029671B (en) | 2021-10-11 | 2021-10-11 | Flexible positioning device for engraving end faces of stationary blades of steam turbine and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114029671B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204913141U (en) * | 2015-07-31 | 2015-12-30 | 安徽安风风机有限公司 | Axial fan impeller welding position device |
| CN206010170U (en) * | 2016-08-31 | 2017-03-15 | 安徽华夏显示技术股份有限公司 | A kind of mark fixture |
| CN110711880A (en) * | 2019-09-02 | 2020-01-21 | 洛阳双瑞风电叶片有限公司 | Wind-powered electricity generation blade connects arrester installation device |
| 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 |
-
2021
- 2021-10-11 CN CN202111183029.4A patent/CN114029671B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204913141U (en) * | 2015-07-31 | 2015-12-30 | 安徽安风风机有限公司 | Axial fan impeller welding position device |
| CN206010170U (en) * | 2016-08-31 | 2017-03-15 | 安徽华夏显示技术股份有限公司 | A kind of mark fixture |
| CN110711880A (en) * | 2019-09-02 | 2020-01-21 | 洛阳双瑞风电叶片有限公司 | Wind-powered electricity generation blade connects arrester installation device |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114029671A (en) | 2022-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107598887B (en) | Multifunctional scribing table | |
| CN109531195B (en) | Device for simulating assembly and turning aiming at fan blade combination | |
| CN109323643B (en) | Rapid detection device and method for blade profile of blisk subjected to electrolytic rough machining | |
| CN113399918A (en) | High-precision welding tool device for high-end axial flow fan impeller | |
| CN114029671B (en) | Flexible positioning device for engraving end faces of stationary blades of steam turbine and application method | |
| CN102126139B (en) | Tilting-type operating platform used for processing three-dimensional hole of die | |
| CN211760899U (en) | Positioning device | |
| CN215035734U (en) | Light gantry machining center with high tool changing efficiency | |
| CN114012342B (en) | Water turbine runner positioning and welding method based on wedge-shaped auxiliary device | |
| CN202225021U (en) | Milling machine indexing device | |
| CN109746797B (en) | Device and method for machining circular arc teeth of standard circular rod part of rotor blade of gas compressor | |
| CN214110183U (en) | Trimming and assembling interference device for processing marine steam turbine longitudinal tree type moving blades | |
| CN111422384B (en) | Adjustable cube star rotating tool | |
| CN210475699U (en) | Clamp for broaching mortise sample block | |
| CN110877196B (en) | Processing technology for improving processing efficiency of sewing machine head | |
| CN112504051A (en) | Scribing inspection device and method for spoke type casing parts | |
| CN217799761U (en) | Quick remodeling mechanism for tooling limiting column | |
| CN216325105U (en) | Device for processing high-precision arc-shaped gasket | |
| CN220762614U (en) | Scribing platform | |
| CN220095927U (en) | Quick code spraying device | |
| CN220762551U (en) | Processing fixed station for hardware manufacturing | |
| CN214721172U (en) | Turning repair equipment for track wheel of comprehensive test bed of bearing of shaft box | |
| CN212705608U (en) | Tool clamp of rocker arm shaft | |
| CN217195305U (en) | Large-scale revolving stage of ruling of part that revolves | |
| CN213727305U (en) | Combustion engine blade spraying clamping tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |