CN110370043A - Axial-flow fan blade reverse drawing hole processing clamp and its clamping method - Google Patents
Axial-flow fan blade reverse drawing hole processing clamp and its clamping method Download PDFInfo
- Publication number
- CN110370043A CN110370043A CN201910688999.6A CN201910688999A CN110370043A CN 110370043 A CN110370043 A CN 110370043A CN 201910688999 A CN201910688999 A CN 201910688999A CN 110370043 A CN110370043 A CN 110370043A
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- blade
- blade root
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- root
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 210000000452 mid-foot Anatomy 0.000 claims abstract description 30
- 238000003825 pressing Methods 0.000 claims description 21
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/063—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding turbine blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Axial-flow fan blade reverse drawing hole processing clamp and its clamping method, its blade clamping that can meet different size blade roots, it can avoid the offset of centre bore Working position, it includes single Finial device, blade root fixes device, it is single top corresponding with blade shroud side end face, the fixed device of blade root includes blade root support base, blade root fixed plate, blade root fixed plate and blade root are arranged with concentric circular fashion, midfoot support device is provided between single Finial device and the fixed device of blade root, clamping step includes: that S1 blade is placed, S2 passes through the positioning that single Finial device realizes blade shroud, S3 realizes the middle part positioning of blade by midfoot support device, S4 realizes the fixation of blade root by the fixed device of blade root.
Description
Technical field
The present invention relates to fan blade clamp for machining technical field, specially a kind of axial-flow fan blade reverse drawing hole machined folder
Tool.
Background technique
The quality of core component of the draught fan impeller as axial flow blower, machining accuracy and quality directly affects axis stream wind
The performance of machine, especially when processing the centre bore of draught fan impeller, positioning datum of the centre bore as blade, the standard of the position of device to hole
True property and machining accuracy have higher requirement, and Fig. 1 is a kind of structural schematic diagram of common axial-flow fan blade, often adopt at present
It realizes the processing of its centre bore with the mode in reverse drawing hole, when processing, is clamped on fixture, is then made on machining tool first
Drill correspond to blade root side, move drill along blade cross central line, drill out lesser centre bore, while in blade
The end of blade root drills out several around the equally distributed circumferential apertures of centre bore, after drill passes through blade shroud, then in drill
Broad is installed, the drill for being equipped with broad is moved along the cross central line opposite direction of blade, makes original center
Hole aperture increases, thus realize that reverse drawing hole machined operates, but the existing fixture for axial-flow fan blade clamping is general
Property is poor, is generally only applicable to the clamping of the blade of same model, when the size of blade root changes, then needs to set
Meter manufacture other set equipment carries out clamping to it, and the design and manufacture of other set equipment consume more manpower, material etc.
Resource increases equipment input cost；And the positioning accuracy of existing fixture is poor, and both ends of the blade generally can be achieved
The positioning clamp operation of integral shroud and blade root lacks middle part positioning device, and when carrying out reverse drawing hole machined, middle part of blade is easily because holding
Displacement is generated by larger torsion, if finding blade displacement situation not in time, easily leads to reverse drawing hole machined positional shift
Problem occurs.
Summary of the invention
It is poor for the versatility of existing fixture existing in the prior art, when the size of blade root changes
When, manufacture and design other set equipment and carry out the resources such as the more manpower material of mode easy consumption of clamping to it, throws equipment
The positioning accuracy for entering problem and existing fixture at high cost is poor, lacks middle part of blade positioning, easily leads to reverse drawing hole and add
The problem of work positional shift, the present invention provides a kind of axial-flow fan blade reverse drawing hole processing clamps, use an equipment can
Meet the blade clamping of different size blade roots, so as to reduce equipment input cost, and can realize the middle part positioning of blade, it can
Centre bore Working position deviates appearance caused by effectively avoiding the problem that blade displacement.
A kind of axial-flow fan blade reverse drawing hole processing clamp comprising pedestal, be provided on the pedestal single Finial device,
Blade root fixes device, the top arrangement corresponding with the side end face of blade shroud of the list of the list Finial device, the fixed dress of the blade root
The blade root fixed plate on blade root support base top is set including blade root support base, is set to, the blade root fixed plate is open court
On semicircle, by blade support between single Finial device and the fixed device of the blade root, the blade root fixed plate with
Blade root is arranged with concentric circular fashion, is provided with midfoot support dress between the list Finial device and the fixed device of the blade root
It sets, which is characterized in that the midfoot support device includes midfoot support seat, is provided with positioning at the top of the midfoot support seat
Block, the locating piece are concave, and the bottom end two sides of the locating piece are provided with guide pad, the top two sides of the midfoot support seat
It is respectively arranged with guide rail corresponding with the guide pad, the locating piece is slidably mounted on the middle part by the guide pad
In the guide rail of support base, the top end face of the locating piece is cambered surface, the intermediate position of the cambered surface and the blade
Lower surface configuration is consistent, is provided with connector sleeve on the inside of the blade root fixed plate, the connector sleeve is fixed on the leaf by screw
Root fixed plate, the shape of the connector sleeve is consistent with the structure of the blade root fixed plate, and the connector sleeve is fixed with the blade root
Plate is arranged with concentric circular fashion.
It is further characterized by the list Finial device includes single dead head, and the top of the list dead head is provided with
Bushing, the top one end of the list is corresponding with the location hole on the side end face of the blade shroud across the bushing, the list
The top other end is fixed on the top of single dead head by flange, screw,；
The fixed device of the blade root further includes support plate, and the support plate is fixed on the upper of the blade root fixed plate by bolt group
Side, the intermediate position of the support plate are provided with compact heap, and the support plate is fixed on by screw in one end of the compact heap
Lower section, the other end of the compact heap is corresponding with the upper surface of the blade root, and the bottom end end face of the compact heap is
Arcwall face, the shape of the arcwall face are consistent with the shape of the upper surface of the blade root；
The side of the blade root fixed plate is provided with pressing plate, and the pressing plate includes at least three, and one end of three pressing plates is equal
The medial surface of the connector sleeve is protruded from, the other end of three pressing plates passes through screw respectively and is fixed on the blade root support
Seat；
The list dead head, midfoot support seat, blade root support base pass through the top of the fixed pedestal of screw respectively.
A method of axial-flow fan blade clamping being realized based on above-mentioned fixture, which is characterized in that it includes in detail below
Step: S1, screwing that the list is top, and the direction for keeping the top court of the list opposite with the blade shroud is mobile, by the blade
It is placed on fixture, the middle lower surface of the blade is made to be supported in the midfoot support device, support the blade root
In in the blade root fixed plate on the fixed device of the blade root；
S2, the list screwed on single Finial device is top, makes the top location hole towards on the blade shroud of the list
It is mobile, and the center point for keeping the list top is connected in location hole, realizes the positioning of the blade shroud；
S3 realizes that the middle part of blade positions by the midfoot support device, rotates the blade, while the mobile guiding
Block, until the cambered surface on the locating piece top and the lower surface of the blade fit closely, to realize the middle part of the blade
Positioning；When carrying out reverse drawing hole machined to the blade, the lower surface of the blade and the compactness of the locating piece are observed；
S4 realizes the fixation of the blade root, in clamping, the side of the blade root by the fixed device of the blade root
Face paste realizes cross spacing and the fixation of the blade by the pressing plate together on the pressing plate, then screws the spiral shell of top
Nail keeps the compact heap mobile towards the direction blade, until the upper table of the arcwall face of the compact heap bottom end and the blade
Face paste is closed, and realizes the longitudinally fixed of the blade root.
The clamping for applying the present invention to axial-flow fan blade when reverse drawing hole machined, blade is placed on fixture, is passed through
Single top fixed device realizes positioning, the fixation of blade shroud, realizes that blade root is fixed by the fixed device of blade root, in
Portion's support device realizes positioning, the fixation at the middle part of blade, connector sleeve is provided on the fixed device of blade root, when the ruler of blade root
Very little when changing, since the shape of connector sleeve is consistent with the shape of blade root fixed plate, and connector sleeve is fixed on blade root fixed plate
On blade root and blade fixed plate between, therefore by replacement connector sleeve, it can be achieved that blade fixed plate and blade root ruler
Very little matching improves the versatility of equipment to can realize the clamping of various sizes of blade root by an equipment, even
Female connector is fixed in blade root fixed plate by screw, therefore convenient for being dismantled, being installed to connector sleeve；In midfoot support device
Locating piece is arranged in top, and locating piece is slided by guide pad on the top of midfoot support seat, since locating piece is concave, and top
For that can pass through guide pad with the consistent globoidal structure of the underside shape of blade and adjust locating piece therefore when placing blade
Vertical position, while blade is adjusted, it is bonded the lower surface of blade and the cambered surface on locating piece top, to realize the middle part of blade
Positioning, and ensure that the middle part of blade can be by firm support, the positioning and fixing of blade root, blade root are consolidated
Fixed, middle part of blade positioning and fixing can ensure that the stabilizing grip of blade, can effectively avoid when carrying out reverse drawing hole machined, blade
Displacement appearance is led to the problem of due to by torsion, is occurred so as to avoid the problem of reverse drawing hole machined positional shift, improves and adds
Work precision.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of common axial-flow fan blade；
Fig. 2 is the structural schematic diagram of main view of the present invention；
Fig. 3 is the structural schematic diagram that the present invention overlooks；
Fig. 4 be Fig. 2 P-P to structural schematic diagram；
Fig. 5 be Fig. 2 M-M to structural schematic diagram；
Fig. 6 be Fig. 2 N-N to structural schematic diagram.
Specific embodiment
See Fig. 1 to Fig. 6, a kind of axial-flow fan blade reverse drawing hole processing clamp comprising pedestal 1, the two side portions of pedestal 1
It is not provided with the fixed device 3 of single Finial device 2, blade root, the list top 21 of single Finial device 2 and the side end face pair of blade shroud 41
It should arrange, single Finial device 2 includes single dead head 22, and the top of single dead head 22 is provided with bushing 23, single top 21 one end
Corresponding with the location hole on the side end face of blade shroud 41 across bushing 23, single top 21 other end passes through flange 24, screw
25 are fixed on the top of single dead head 22；
The fixed device 3 of blade root includes blade root support base 31, the blade root fixed plate 32 for being set to 31 top of blade root support base, and blade root is solid
Fixed board 32 is open semicircle upward, blade 4 is supported between single Finial device 2 and the fixed device 3 of blade root, blade root is fixed
Plate 32 is arranged with blade root 42 with concentric circular fashion, and connector sleeve 33 is provided on the inside of blade root fixed plate 32, and connector sleeve 33 passes through
Screw 34 is fixed on blade root fixed plate 32, and the shape of connector sleeve 33 is consistent with the shape of blade root fixed plate 32, connector sleeve 33 and leaf
Root fixed plate 32 arranges that the fixed device 3 of blade root further includes support plate 35, and support plate 35 is solid by bolt group 36 with concentric circular fashion
Due to the top of blade root fixed plate 32, the intermediate position of support plate 35 is provided with compact heap 37, and one end of compact heap 37 passes through spiral shell
Nail 38 is fixed on the lower section of support plate 35, and the other end of compact heap 37 is corresponding with the upper surface of blade root 42, compact heap 37
Bottom end end face be arcwall face, the shape of arcwall face is consistent with the shape of the upper surface of blade root 42；Blade root fixed plate 32
Side is provided with pressing plate 39, and pressing plate 39 includes at least three, and one end of three pressing plates 39 protrudes from the medial surface of connector sleeve 33,
The other end of three pressing plates 39 passes through screw respectively and is fixed on blade root support base 31；Single Finial device 2 and the fixed device 3 of blade root it
Between be provided with midfoot support device 5, midfoot support device 5 includes midfoot support seat 51, and the top of midfoot support seat 51 is provided with
Locating piece 52, locating piece 52 are concave, and the bottom end two sides of locating piece 52 are provided with guide pad 53, the top two of midfoot support seat 51
Side is respectively arranged with guide rail corresponding with guide pad 53, and locating piece 52 is slidably mounted on midfoot support seat 51 by guide pad 53
Guide rail in, the top end face of locating piece 52 is cambered surface, and the lower surface configuration at the intermediate position 43 of cambered surface and blade 4 is consistent, singly
Dead head, midfoot support seat, blade root support base pass through screw firm banking 1, single top list dead head 22, midfoot support seat respectively
51, when blade root support base 31 and pedestal 1 are fixed, positioning key 10 can be passed through respectively, locating slot realizes positioning.
A method of axial-flow fan blade clamping being realized based on above-mentioned fixture comprising step in detail below: S1, screw
Single top 21, make single top 21 towards the direction movement opposite with blade shroud 41, blade is placed on fixture, is made in blade
43 lower surface of portion is supported in midfoot support device 5, and blade root 42 is made to be supported in the blade root fixed plate 32 on the fixed device 3 of blade root
On；
S2 screws the list top 21 on single Finial device 2, it is mobile towards the location hole on blade shroud 41 to make single top 21, and make
Single top 21 center point is connected in location hole, realizes the positioning of blade shroud 41；
S3 realizes that the middle part of blade positions by midfoot support device 5, rotating vane, while mobile guide block 53, until positioning
The cambered surface on 52 top of block and the lower surface 43 of blade fit closely, to realize the middle part positioning of blade；It is carried out instead to blade
When pulling eye is processed, the lower surface 43 of Observable blade and the compactness of locating piece, to detect whether blade is subjected to displacement, if hair
Raw displacement, adjusts in time, ensures that the cross central line of blade remains parallel with horizontal plane, it is ensured that blade center
The accuracy of hole machined position, improves machining accuracy；
S4 realizes the fixation of blade root 42 by the fixed device 3 of blade root, and in clamping, the side end face of blade root 42 is bonded
In on pressing plate 39, cross spacing and the fixation of blade 4 are realized by pressing plate 39, the screw 38 of top is then screwed, makes compact heap
37 is mobile towards direction blade, until the arcwall face of 37 bottom end of compact heap is bonded with the upper surface of blade 4, to realize blade root
It is longitudinally fixed；The clamping operation of blade is realized by step S1 ~ S4；
Lathe with drill is placed in the side of blade root 42, moves drill along the cross central line of blade 4 by S5,
To blade 4 carry out center hole machined, due to blade hardness with higher, but in machining center hole when be also easy to produce crackle, this
Invention is used and is first drilled out the lesser centre bore of size in the middle part of blade using drill, then broad is installed in drill
The reverse drawing hole machined mode of reverse drawing operation is carried out, lesser centre bore, which is pre-machined, can effectively reduce drill and leaf in reverse drawing process
Stress between piece, can to avoid the problem that the centre bore in direct process larger sized aperture and caused by leaf destruction go out
It is existing；
In the present apparatus, cooperate the transverse direction for realizing blade 4 fixed with pressing plate 39 by single Finial device 2, pressing plate 39 is arranged three,
It is bonded the side end face of blade root 42 with three pressing plates 39, it is ensured that the side end face of blade root 42 and horizontal plane keep hanging down
Directly, the accuracy for having thereby further ensured that blade center hole Working position meets the required precision of blade center hole machined.
Claims (5)
1. a kind of axial-flow fan blade reverse drawing hole processing clamp comprising pedestal is provided with single Finial device, leaf on the pedestal
Root fixes device, and the list of the list Finial device is top corresponding with the side end face of blade shroud, and the fixed device of the blade root includes
Blade root support base, the blade root fixed plate for being set to blade root support base top, the blade root fixed plate are open half upward
Circle, by blade support between single Finial device and the fixed device of the blade root, the blade root fixed plate and blade and blade
Root is arranged with concentric circular fashion, is provided with midfoot support device between the list Finial device and the fixed device of the blade root,
It is characterized in that, the midfoot support device includes midfoot support seat, is provided with locating piece at the top of the midfoot support seat, described
Locating piece is concave, and the bottom end two sides of the locating piece are provided with guide pad, and the top two sides of the midfoot support seat are set respectively
It is equipped with guide rail corresponding with the guide pad, the locating piece is slidably mounted on the midfoot support seat by the guide pad
The guide rail in, the top end face of the locating piece is cambered surface, the lower surface at the intermediate position of the cambered surface and the blade
Structure is consistent, is provided with connector sleeve on the inside of the blade root fixed plate, the connector sleeve, which is fixed on the blade root by screw, to be fixed
Plate, the shape of the connector sleeve is consistent with the structure of the blade root fixed plate, and the connector sleeve is with the blade root fixed plate with same
Heart circle mode is arranged.
2. a kind of axial-flow fan blade reverse drawing hole processing clamp according to claim 1, which is characterized in that the list is top
Device includes single dead head, and the top of the list dead head is provided with bushing, the top one end of the list pass through the bushing with
Location hole on the side end face of the blade shroud is corresponding, and the top other end of the list is fixed on described by flange, screw
The top of single dead head.
3. according to claim 1 or a kind of 2 described in any item axial-flow fan blade reverse drawing hole processing clamps, which is characterized in that
The fixed device of the blade root further includes support plate, and the support plate is fixed on the top of the blade root fixed plate by bolt group,
The intermediate position of the support plate is provided with compact heap, and one end of the compact heap is fixed under the support plate by screw
Side, the other end of the compact heap is corresponding with the upper surface of the blade root, and the bottom end end face of the compact heap is arc
Face, the shape of the arcwall face are consistent with the shape of the upper surface of the blade root.
4. a kind of axial-flow fan blade reverse drawing hole processing clamp according to claim 3, which is characterized in that the blade root is solid
The side of fixed board is provided with pressing plate, and the pressing plate includes at least three, and one end of three pressing plates protrudes from the connection
The medial surface of set, the other end of three pressing plates pass through screw respectively and are fixed on the blade root support base.
5. the method for realizing axial-flow fan blade clamping based on fixture described in claim 1, which is characterized in that it includes following
Specific steps: S1, screwing that the list is top, and the direction for keeping the top court of the list opposite with the blade shroud is mobile, will be described
Blade is placed on fixture, so that the middle lower surface of the blade is supported in the midfoot support device, is made the blade root
It is supported in the blade root fixed plate on the fixed device of the blade root；
S2, the list screwed on single Finial device is top, makes the top location hole towards on the blade shroud of the list
It is mobile, and the center point for keeping the list top is connected in location hole, realizes the positioning of the blade shroud；
S3 realizes that the middle part of blade positions by the midfoot support device, rotates the blade, while the mobile guiding
Block, until the cambered surface on the locating piece top and the lower surface of the blade fit closely, to realize the middle part of the blade
Positioning；When carrying out reverse drawing hole machined to the blade, the lower surface of the blade and the compactness of the locating piece are observed；
S4 realizes the fixation of the blade root, in clamping, the side of the blade root by the fixed device of the blade root
Face paste realizes cross spacing and the fixation of the blade by the pressing plate together on the pressing plate, then screws the spiral shell of top
Nail keeps the compact heap mobile towards the direction blade, until the upper table of the arcwall face of the compact heap bottom end and the blade
Face paste is closed, and realizes the longitudinally fixed of the blade root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910688999.6A CN110370043A (en) | 2019-07-29 | 2019-07-29 | Axial-flow fan blade reverse drawing hole processing clamp and its clamping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910688999.6A CN110370043A (en) | 2019-07-29 | 2019-07-29 | Axial-flow fan blade reverse drawing hole processing clamp and its clamping method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110370043A true CN110370043A (en) | 2019-10-25 |
Family
ID=68256746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910688999.6A Pending CN110370043A (en) | 2019-07-29 | 2019-07-29 | Axial-flow fan blade reverse drawing hole processing clamp and its clamping method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110370043A (en) |
Cited By (2)
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| CN112985219A (en) * | 2021-03-17 | 2021-06-18 | 中国航发动力股份有限公司 | Turbine blade shroud edge plate measuring device |
| CN113681322A (en) * | 2021-09-29 | 2021-11-23 | 中国航发动力股份有限公司 | Blade positioning key end face machining clamping device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112985219A (en) * | 2021-03-17 | 2021-06-18 | 中国航发动力股份有限公司 | Turbine blade shroud edge plate measuring device |
| CN113681322A (en) * | 2021-09-29 | 2021-11-23 | 中国航发动力股份有限公司 | Blade positioning key end face machining clamping device and method |
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