CN220783048U - Clamping device for machining blade root groove of turbine blade - Google Patents
Clamping device for machining blade root groove of turbine blade Download PDFInfo
- Publication number
- CN220783048U CN220783048U CN202322480243.7U CN202322480243U CN220783048U CN 220783048 U CN220783048 U CN 220783048U CN 202322480243 U CN202322480243 U CN 202322480243U CN 220783048 U CN220783048 U CN 220783048U
- Authority
- CN
- China
- Prior art keywords
- placing groove
- fixed
- blade
- block
- top surface
- 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
- 238000003754 machining Methods 0.000 title claims abstract description 9
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 4
- 125000003003 spiro group Chemical group 0.000 claims 1
- 238000005056 compaction Methods 0.000 abstract description 2
- 238000003801 milling Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
The utility model discloses a clamping device for machining a blade root groove of a turbine blade, which comprises a clamp bottom plate, wherein the clamp bottom plate is fixed on an operation platen, a placing groove body is fixed on the top surface of the clamp bottom plate, a placing groove extending downwards is formed in the middle of the top surface of the placing groove body, the front end and the rear end of the placing groove extend out of the front wall surface and the rear wall surface of the placing groove body, a side compression mechanism is movably connected to the top surface of the clamp bottom plate at the right side of the placing groove body, a blade to be machined is inserted in the placing groove, the bottom surfaces of the root part and the front end part of the blade are pressed against the bottom surface of the placing groove, and a compression block of the side compression mechanism is pressed against the top surface of the root part or the front end part of the blade. It can place the blade in the standing groove body to rotate through the turning block, make the compact heap automatic compaction fixed, it is fixed firm, fixed effectual, greatly reduced manual labor volume.
Description
Technical field:
The utility model relates to the technical field of processing of turbine blades, in particular to a clamping device for processing blade root grooves of turbine blades.
The background technology is as follows:
the turbine blade is a core component of a power station generator set, such as various torsion blades, magnetic ring guide vanes, diamond-shaped movable blades and the like, and generally comprises a root part, a blade main body and a front end part, wherein four side walls of the root part and the front end part are horizontal wall surfaces, the root part of the turbine blade generally carries out milling groove processing on the wall surfaces according to design requirements, when the turbine blade is processed, the blade is required to be clamped and fixed, the existing processing and fixing are realized by manually fixing pressing blocks through bolts, the corresponding positions of the blade are clamped and fixed, the fixing effect is poor, and the manual pulling amount is large.
The utility model comprises the following steps:
The utility model aims to overcome the defects of the prior art, and provides a clamping device for processing a blade root groove of a turbine blade, which can place the blade in a placing groove body and enable a compression block to be automatically compressed and fixed through rotation of a rotation block, so that the clamping device is firm in fixation and good in fixation effect, and greatly reduces the manual labor capacity.
The scheme for solving the technical problems is as follows:
The utility model provides a steam turbine blade root groove processing clamping device, includes the anchor clamps bottom plate, the anchor clamps bottom plate is fixed on the operation platen, fixed standing groove body on the top surface of anchor clamps bottom plate, the shaping of the top surface middle part of standing groove body has downwardly extending's standing groove, the front and back wall that the standing groove body was stretched out at both ends around the standing groove, install side hold-down mechanism on the top surface of the anchor clamps bottom plate of the right side department of standing groove body, the blade plug bush of waiting to process is in the standing groove, the bottom surface of the root and the front end portion of blade is pressed on the bottom surface of standing groove, the hold-down piece of side hold-down mechanism is pressed on the top surface of the root or the front end portion of blade.
Two cushion blocks are placed in the placing groove of the placing groove body, the right side walls of the cushion blocks are clung to the right side inner walls of the placing groove, the left side walls of the two cushion blocks are clung to the root parts of the blades and the right side walls of the front end parts of the blades, and the root parts of the blades and the left side walls of the front end parts of the blades are clung to the left side inner walls of the placing groove.
The bottom guide groove extending back and forth is formed in the middle of the top surface of the clamp bottom plate, the guide protruding portion extending back and forth is formed in the middle of the bottom surface of the bottom plate of the placing groove body, the guide protruding portion is inserted into the bottom guide groove in a sleeved mode, and the left side and the right side of the guide protruding portion are tightly attached to the left inner side wall and the right inner side wall of the bottom guide groove.
The side compression mechanism comprises a fixed block, the fixed block is fixed on the top surface of the right part of the clamp bottom plate, two bearing seats are fixed on the top surface of the fixed block, a rotating shaft is fixed on the inner ring of the corresponding bearing seat, one end of the rotating shaft extends out of the bearing seat and is fixed on the rotating block, an extending part extending leftwards is formed at the left end of the top of the rotating block, and the left end of the extending part is located above the placing groove.
The bottom surface of the left end of the extension part is fixed with a compression block.
The utility model has the outstanding effects that:
it can place the blade in the standing groove body to rotate through the turning block, make the compact heap automatic compaction fixed, it is fixed firm, fixed effectual, greatly reduced manual labor volume.
Description of the drawings:
FIG. 1 is a partial top view of the present utility model;
FIG. 2 is a partial side view of the present utility model;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a partial schematic view of the present utility model with rotating blocks and the like removed;
FIG. 5 is a partial schematic view of a stop lever at a spindle where the milling cutter of the present utility model is installed;
fig. 6 is a partial structural schematic view of a positioning rod installed at the bottom of a stopper rod.
The specific embodiment is as follows:
As shown in fig. 1 to 6, an embodiment, see a clamping device for processing a blade root slot of a turbine blade, comprises a clamp base plate 10, wherein the clamp base plate 10 is fixed on an operation platen, a placing groove body 20 is fixed on the top surface of the clamp base plate 10, a placing groove extending downwards is formed in the middle of the top surface of the placing groove body 20, the front end and the rear end of the placing groove extend out of the front wall surface and the rear wall surface of the placing groove body 20, a side pressing mechanism 30 is installed on the top surface of the clamp base plate 10 at the right side of the placing groove body 20, a blade 100 to be processed is inserted in the placing groove, the root part and the bottom surface of the front end part of the blade 100 are pressed on the bottom surface of the placing groove, and a pressing block 31 of the side pressing mechanism 30 is pressed on the top surface of the root part or the front end part of the blade 100. A milling host (which is fixed on a frame, the frame of the operating platen box is not shown in the drawing) is arranged in front of the operating platen, and a milling cutter is fixed at the end part of a main shaft of the milling host. Meanwhile, an elongated rod 70 is arranged on the rear end face of the milling machine, a through hole is formed in the upper portion of the elongated rod 70, a screw portion of a fixing bolt is inserted into the through hole and is screwed into a screw hole in the rear end face of the milling machine, the upper portion of the elongated rod 70 is clamped between a rotating portion of the fixing bolt and the rear end face of the milling machine, a screw hole is formed in the middle of the bottom end of the elongated rod 70, a limiting rod 71 is screwed into the screw hole, a connecting block is fixed at the bottom end of the limiting rod 71, a screw hole is formed in the rear wall face of the connecting block, the front end of a positioning rod 72 is screwed into the screw hole, and the rear end face of the positioning rod 72 faces the front end of the placing groove.
When the blade to be processed is used, the blades to be processed are required to be placed in the placing groove, the widths of the blades with different specifications are different, and when the widths of the blades are smaller than the left width and the right width of the placing groove, the blades can be installed by installing the cushion blocks 1 with corresponding thicknesses;
The two cushion blocks 1 are placed in the placing groove of the placing groove body 20, the right side walls of the cushion blocks 1 are clung to the right side inner walls of the placing groove, the left side walls of the two cushion blocks 1 are clung to the right side walls of the root and the front end of the blade 100, and the root and the left side walls of the front end of the blade 100 are clung to the left side inner walls of the placing groove, so that fixation is realized. And when the blade 100 is installed, the front end face of the blade is pressed against the rear end face of the positioning rod 72, so that the front limit is realized, wherein the distance between the rear end face of the positioning rod 72 and the rear end face of the connecting block can be adjusted by rotating the positioning rod 72, and the backward extending distance of the positioning rod 72 is changed, so that the position of the front end face limit of the blade 100 can be changed, and the positioning requirement of processing and clamping is met.
Further, the middle part of the top surface of the bottom plate 10 of the fixture is formed with a bottom guide groove 11 extending back and forth, the middle part of the bottom surface of the bottom plate of the placement groove 20 is formed with a guide protrusion 21 extending back and forth, the guide protrusion 21 is inserted into the bottom guide groove 11, the left and right sides of the guide protrusion 21 are tightly attached to the left and right inner side walls of the bottom guide groove 11, and the limit can be realized through the guide protrusion 21 and the bottom guide groove 11.
Further, the lateral compression mechanism 30 includes a fixing block 32, the fixing block 32 is fixed on the top surface of the right portion of the fixture bottom plate 10, two bearing seats 33 are fixed on the top surface of the fixing block 32, a rotating shaft 34 is fixed on the inner ring of the corresponding bearing seat 33, one end of the rotating shaft 34 extends out of the bearing seat 33 and is fixed on a rotating block 35, an extending portion 36 extending leftwards is formed at the left end of the top of the rotating block 35, and the left end of the extending portion 36 is located above the placing groove.
Further, a pressing block 31 is fixed to the bottom surface of the left end of the extension 36.
Further, a connection screw hole 351 is formed on the right side wall of the rotating block 35, the connection screw hole 351 is screw connected with an oil pipe (the oil pipe is not shown in the drawing, and is communicated with a control valve communicated with the oil pump), a transverse hole 352 is formed in the middle of the left end face of the connection screw hole 351, a vertical hole 353 extending downwards is formed in the bottom face of the left part of the transverse hole 352, and the bottom end of the vertical hole 353 is communicated with a lower screw hole 354 formed in the middle of the bottom face of the rotating block 35.
Further, an inner sleeve 355 is screwed in the lower screw hole 354, an annular pressing plate 356 is welded and fixed at the bottom end of the inner sleeve 355, the annular pressing plate 356 is pressed against the bottom surface of the rotating block 35, a second sealing ring is nested in an annular groove formed at the edge of the top surface of the annular pressing plate 356, and the second sealing ring is pressed against the bottom surface of the rotating block 35;
The middle part of the inner sleeve 355 is formed with a stepped through hole with a large upper inner diameter and a small lower inner diameter, the piston block 357 is inserted in the stepped through hole, the lower outer side wall of the piston block 357 is close to the inner side wall of the lower small diameter hole section of the stepped through hole, the upper outer side wall of the piston block 357 is formed with a radial extension edge 3571, the radial extension edge 3571 is inserted in the upper large diameter hole section of the stepped through hole, the reset spring 2 is inserted in the upper large diameter hole section, the bottom end of the reset spring 2 is applied to the bottom end face of the upper large diameter hole section, the top end of the reset spring 2 is applied to the bottom face of the radial extension edge 3571, a first sealing ring 3 is nested in an annular groove formed on the outer side wall of the radial extension edge 3571, and the outer side wall of the first sealing ring 3 is pressed against the inner side wall of the upper large diameter hole section.
Further, a supporting column 358 extending downwards is formed in the middle of the bottom surface of the piston block 357, the bottom end of the supporting column 358 extends out of the annular pressing plate 356, an inner annular groove is formed on the inner side wall of the annular pressing plate 356, a third sealing ring is nested in the inner annular groove, and the inner side wall of the third sealing ring is pressed against the outer side wall of the supporting column 358; a horizontal platen 359 is secured to the bottom end of support post 358, and horizontal platen 359 is pressed against the top surface of fixed block 32.
In this embodiment, when the blade 100 is fixed, it is firstly placed in the placement groove to be installed, the specific installation mode is described in detail before, after the blade 100 is positioned, oil enters through the oil pipe, the oil enters into the connecting screw hole 351, then enters into the inner sleeve 355, the piston block 357 is pushed downwards, the horizontal pressing plate 359 presses against the top surface of the fixed block 32, the rotating block 35 is rotated, the pressing block 31 is moved downwards, the pressing block is pressed against the top surface of the root or the front end of the blade 100, the pressing is fixed, namely, the pressing is completed, at this moment, the fixing bolt can be rotated, the long rod 70 is rotated, the positioning rod 72 and other parts are rotated upwards, then the fixing bolt is screwed, the positioning rod 72 is not contacted with the blade 100, at this moment, the top surface of the root of the blade 100 is processed by the working bench movement or the milling host movement, the fixing effect is good, the normal processing is ensured, the clamping is firm, and the manual labor is greatly reduced.
After the processing is completed, the oil at the rotating block 35 is decompressed, the supporting column 358 is retracted through the elastic recovery of the return spring 2, the rear part of the rotating block 35 can be turned downwards due to the heavy weight of the rear part of the rotating block 35, at the moment, the extending part 36 is turned upwards, and the blade 100 can be moved out without being pressed against the blade 100, so that the processing is very convenient.
Meanwhile, in the present embodiment, according to the blades 100 with different heights, the compression block 31 can be detached from the extension portion 36 to replace the compression block 31 with a thickness corresponding to the blade 100 to be processed, so as to meet the processing and clamping requirements.
Claims (8)
1. The utility model provides a steam turbine blade root groove processing clamping device, includes anchor clamps bottom plate (10), its characterized in that: the fixture bottom plate (10) is fixed on the operation platen, a placing groove body (20) is fixed on the top surface of the fixture bottom plate (10), a placing groove extending downwards is formed in the middle of the top surface of the placing groove body (20), front and rear wall surfaces of the placing groove body (20) extend out of the front and rear ends of the placing groove body, a side pressing mechanism (30) is mounted on the top surface of the fixture bottom plate (10) on the right side of the placing groove body (20), a blade (100) to be processed is inserted in the placing groove, the root of the blade (100) and the bottom surface of the front end portion are pressed against the bottom surface of the placing groove, and a pressing block (31) of the side pressing mechanism (30) is pressed against the root of the blade (100) or the top surface of the front end portion.
2. The clamping device for machining blade root slots of turbine blades as claimed in claim 1, wherein: two cushion blocks (1) are placed in the placing groove of the placing groove body (20), the right side wall of the cushion block (1) is clung to the right side inner wall of the placing groove, the left side wall of the two cushion blocks (1) is clung to the right side wall of the root and the front end of the blade (100), and the root and the left side wall of the front end of the blade (100) are clung to the left side inner wall of the placing groove.
3. The clamping device for machining blade root slots of turbine blades as claimed in claim 1, wherein: the fixture is characterized in that a bottom guide groove (11) extending front and back is formed in the middle of the top surface of the fixture bottom plate (10), a guide protruding portion (21) extending front and back is formed in the middle of the bottom surface of the bottom plate of the placement groove body (20), the guide protruding portion (21) is inserted into the bottom guide groove (11), and the left side and the right side of the guide protruding portion (21) are tightly attached to the left inner side wall and the right inner side wall of the bottom guide groove (11).
4. The clamping device for machining blade root slots of turbine blades as claimed in claim 1, wherein: the side compression mechanism (30) comprises a fixed block (32), the fixed block (32) is fixed on the top surface of the right part of the clamp bottom plate (10), two bearing seats (33) are fixed on the top surface of the fixed block (32), a rotating shaft (34) is fixed on the inner ring of the corresponding bearing seat (33), one end of the rotating shaft (34) extends out of the bearing seat (33) and is fixed on a rotating block (35), an extending part (36) extending leftwards is formed at the left end of the top of the rotating block (35), and the left end of the extending part (36) is located above the placing groove.
5. The clamping device for machining blade root slots of turbine blades as claimed in claim 4, wherein: the bottom surface of the left end of the extension part (36) is fixed with a compressing block (31).
6. The clamping device for machining blade root slots of turbine blades as claimed in claim 4, wherein: the right side wall of the rotating block (35) is provided with a connecting screw hole (351), the middle part of the left end face of the connecting screw hole (351) is provided with a transverse hole (352), the bottom surface of the left part of the transverse hole (352) is provided with a vertical hole (353) extending downwards, and the bottom end of the vertical hole (353) is communicated with a lower screw hole (354) formed in the middle of the bottom surface of the rotating block (35).
7. The clamping device for machining blade root slots of turbine blades as claimed in claim 6, wherein: the lower spiro union has inner skleeve (355) in hole (354), the bottom welded fastening of inner skleeve (355) has annular clamp plate (356), annular clamp plate (356) is pressed and is leaned on the bottom surface of rotating block (35), the middle part shaping of inner skleeve (355) has the big lower part internal diameter ladder through-hole of upper portion, piston block (357) plug bush is in the ladder through-hole, the lower part lateral wall of piston block (357) is close to the inside wall of the lower part minor diameter hole section of ladder through-hole, the shaping has radially to extend limit (3571) on the upper portion lateral wall of piston block (357), radially extend limit (3571) plug bush is in the big diameter hole section in upper portion of ladder through-hole, reset spring (2) plug bush is in the big diameter hole section in upper portion, the bottom of reset spring (2) is exerted on the bottom surface of big diameter hole section in upper portion, the top of reset spring (2) is exerted on the bottom surface of radially extending limit (3571), the annular groove of shaping on the lateral wall of radially extending limit (3571) has nested first sealing washer (3), the inside annular groove of the outside on the outside wall of the big diameter section of pressing on upper portion.
8. The steam turbine blade root slot tooling fixture of claim 7 wherein: the middle part of the bottom surface of the piston block (357) is provided with a supporting column (358) which extends downwards, the bottom end of the supporting column (358) extends out of the annular pressing plate (356), a horizontal pressing plate (359) is fixed, and the horizontal pressing plate (359) is pressed against the top surface of the fixed block (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322480243.7U CN220783048U (en) | 2023-09-13 | 2023-09-13 | Clamping device for machining blade root groove of turbine blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322480243.7U CN220783048U (en) | 2023-09-13 | 2023-09-13 | Clamping device for machining blade root groove of turbine blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220783048U true CN220783048U (en) | 2024-04-16 |
Family
ID=90666118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322480243.7U Active CN220783048U (en) | 2023-09-13 | 2023-09-13 | Clamping device for machining blade root groove of turbine blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220783048U (en) |
-
2023
- 2023-09-13 CN CN202322480243.7U patent/CN220783048U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202010810U (en) | Fixture of milling machine | |
| CN220783048U (en) | Clamping device for machining blade root groove of turbine blade | |
| CN205614064U (en) | A lathe that is used for turning stock class part | |
| CN107309726B (en) | Semi-automatic end face grinding machine for plunger sleeve production | |
| CN111761160B (en) | Automatic pressing mechanism for threaded head of water outlet pipe of faucet | |
| CN111408967A (en) | Crankshaft keyseat connecting rod journal self-positioning device | |
| CN108788843B (en) | Positioning and clamping device for machining marine diesel engine connecting rod | |
| CN211709023U (en) | But high-efficient anchor clamps of eccentric part of automatically clamped grinding | |
| CN116060918A (en) | Automatic bowl-shaped plug press-fitting machine and bowl-shaped plug press-fitting method | |
| CN212043661U (en) | Self-positioning device for crankshaft keyseat connecting rod journal | |
| CN212329838U (en) | Vertical pull-up type external broaching machine | |
| CN210879481U (en) | Double-station air pipe press-in machine | |
| CN108500876B (en) | Tool clamp | |
| CN201300300Y (en) | Machine tool spindle and disc spring assembly and test device | |
| CN209902612U (en) | Controllable fixed-torque screwing machine | |
| CN208231362U (en) | Pump housing blank boring and milling pressurize fixture | |
| CN217596998U (en) | Device for press fitting of brake shaft sleeve | |
| CN220362065U (en) | Multi-size universal semi-automatic chamfering machine | |
| CN213003700U (en) | Workpiece clamping mechanism of lock cylinder drilling and milling equipment | |
| CN221110701U (en) | Automobile part machining machine tool | |
| CN219665796U (en) | Milling special fixture for aviation special-shaped three-way joint | |
| CN219746910U (en) | Ultra-large motor stator press-fitting machine | |
| CN219235104U (en) | Clamping tool with adjustable inclination for machining disc brake linings for automobiles | |
| CN220427867U (en) | Heavy gas turbine guide vane edge plate grinding tool | |
| CN219074968U (en) | Clamping fixture for aviation engine cutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |