CN204867993U - Low rigidity turbine blade milling fixture - Google Patents
Low rigidity turbine blade milling fixture Download PDFInfo
- Publication number
- CN204867993U CN204867993U CN201520634269.5U CN201520634269U CN204867993U CN 204867993 U CN204867993 U CN 204867993U CN 201520634269 U CN201520634269 U CN 201520634269U CN 204867993 U CN204867993 U CN 204867993U
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- CN
- China
- Prior art keywords
- headstock
- change material
- tailstock
- lower box
- turbine blade
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a low rigidity turbine blade milling fixture, including last box, lower box, the headstock body, the tailstock body, left side apron, right side apron, phase change material etc. The setting element coarse positioning of blank on anchor clamps, it is fixed to together with anchor clamps, add and cast phase change material, messenger's part blank and the solid be connected together of anchor clamps body rigidity. Laying down left and right side cap board and going up the box, die joint the first half is milled in processing, and blank surplus and phase change material are together amputated. Accomplish the first half processing back, the joint sealing phase change material that casts again lays down left and right side cap board and box down, and die joint the latter half is milled in processing, and then accomplishes the processing of whole part. Because the part bottom surface is supported by phase change material completely, the processing rigidity of part has been guaranteed. Can effectively improve the machining precision and the cutting process efficiency of part. And phase change material can dissolve and retrieves multiplexingly, because of its fusing point is low, can not influence processing part performance.
Description
Technical field
The utility model relates to Machining Technology field, especially a kind of phase-change material support fixture, can realize the rigidity strengthening clamping of little rigidity complex parts, realize the processing that it is high-accuracy.
Background technology
Along with the progress of technology, the structure of the turbine blade of aircraft, steam turbine becomes increasingly complex, and blade profile is that the curved surface turned round is put in space, and intermediate type of attachment is also varied, cannot adopt the processes of shaping forging.Adopt multi-shaft linkage numerical control machine directly just to be manufactured by side, become unique selection.But some blades are so small to have only 40 millimeters long, 10 mm wides, thickness only have 0.5 millimeter, and rigidity is very low.How to improve little rigidity blade install rigidity, reduce cutting deformation, improving machining accuracy, is a very important problem.
In prior art, adopt the upright and outspoken tipping folder in two ends biting connecions side, this mode is clamping good rigidity when initial blank, but during fine finishining, grows because part is thin, is difficult to avoid machining deformation.
Utility model content
The applicant, for the shortcoming in above-mentioned existing production technology, provides a kind of Low rigidity turbine blade milling fixture, thus solves the effective scheme of little rigidity complex parts clamping, enhances clamping rigidity, improves stock-removing efficiency, ensure that machining accuracy.
The technical scheme that the utility model adopts is as follows:
A kind of Low rigidity turbine blade milling fixture, comprise lower box, the head of described lower box is connected with headstock body by alignment pin, the afterbody of described lower box is connected with tailstock body by alignment pin and screw, workpiece blank is installed in the recessed storehouse that headstock body, lower box and tailstock body surround, and by the locking of trip bolt, locating piece and top lock-screw, workpiece blank is fixed on headstock body and tailstock body by multiple trip bolt simultaneously; Also comprise the symmetrically arranged upper box with lower box, the two ends of described upper box are fixed on headstock body and tailstock body respectively by circular cone alignment pin and casing mounting screw, the both sides of described headstock body and tailstock body are fixed with left side cover plate and right side cover plate respectively by side cover plate mounting screw, also comprise phase-change material, described phase-change material pours in casing through the tapping hole of casing.
Its further technical scheme is:
Described phase-change material is low melting point tin cerrobase alloy, and fusing point is at 80-90 degree, and its expansion rate is 0.01%;
The structure of described headstock body is: described headstock body one end is that lathe is equipped with fixture interface shape, and have centre bore in its end, the other end is headstock body column type cavity, and process trapezoidal thread at the inwall of headstock body column type cavity, be positioned at headstock body column type cavity place and have headstock body screw hole, described headstock body is processed with headstock tool setting plane;
The structure of described tailstock body is: described tailstock body one end is that lathe is equipped with fixture interface shape, and top lock-screw is installed, the other end is tailstock body column type cavity, and process trapezoidal thread at the inwall of tailstock body column type cavity, be positioned at tailstock body column type cavity place and have tailstock body screw hole, described tailstock body is processed with tailstock tool setting plane;
Described upper box and lower box are adopted as symmetrical structure, and the inner surface of upper box and lower box is all processed with spaced cylinder pit;
The head of described trip bolt is milled with groove.
The beneficial effects of the utility model are as follows:
The utility model compact conformation, rationally, easy to operate.The clamping of various structures size little rigidity part milling can be covered by Seriation Design.Compare the clamping of existing two ends, install rigidity of the present utility model is high, and can be close to the distortion overcoming part processing completely, machining accuracy and the efficiency of part all improve a lot.The utility model adopts phase-change material, and the solubilized utilization and recycle of phase-change material, because its fusing point is low, processing parts performance can not be affected.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model (full sectional view).
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the structural representation of the utility model headstock body.
Fig. 4 is the structural representation of the utility model tailstock body.
Fig. 5 is the utility model implementation process fixture first time casting phase-change material schematic cross-section.
Fig. 6 is that the utility model implementation process fixture completes the rear schematic cross-section of the first half processing.
Fig. 7 is the utility model implementation process fixture second time casting phase-change material schematic cross-section.
Fig. 8 is that the utility model implementation process fixture completes the rear schematic cross-section of the latter half processing.
Wherein: 1, headstock body; 2, trip bolt; 3, upper box; 4, workpiece blank; 5, phase-change material; 6, tailstock body; 7, top lock-screw; 8, lower box; 9, left side cover plate; 10, circular cone alignment pin; 11, casing mounting screw; 12, tailstock tool setting plane; 13, right side cover plate; 14, headstock tool setting plane; 15, side cover plate mounting screw; 16, centre bore; 17, locating piece; 18, headstock body screw hole; 19, headstock body column type cavity; 20, tailstock body screw hole; 21, tailstock body column type cavity; 22, milling die joint; 23, part.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described.
As depicted in figs. 1 and 2, the Low rigidity turbine blade milling fixture of the present embodiment, comprise lower box 8, the head of lower box 8 is connected with headstock body 1 by alignment pin, the afterbody of lower box 8 is connected with tailstock body 6 by alignment pin and screw, workpiece blank 4 is installed in the recessed storehouse that headstock body 1, lower box 8 and tailstock body 6 surround, and is locked by trip bolt 2, locating piece 17 and top lock-screw 7, and workpiece blank 4 is fixed on headstock body 1 and tailstock body 6 by multiple trip bolt 2 simultaneously; Also comprise the symmetrically arranged upper box 3 with lower box 8, the two ends of upper box 3 are fixed on headstock body 1 and tailstock body 6 respectively by circular cone alignment pin 10 and casing mounting screw 11, the both sides of headstock body 1 and tailstock body 6 are fixed with left side cover plate 9 and right side cover plate 13 respectively by side cover plate mounting screw 15, also comprise phase-change material 5, phase-change material 5 pours in casing through the tapping hole of casing.
Phase-change material 5 is low melting point tin cerrobase alloy, and fusing point is at 80-90 degree, and expansion rate is 0.01%.
As shown in Figure 3, the structure of headstock body 1 is: headstock body 1 one end is that lathe is equipped with fixture interface shape, and have centre bore 16 in its end, the other end has headstock body column type cavity 19, be convenient to blank rotation and be positioned at optional position, and process trapezoidal thread at the inwall of headstock body column type cavity 19, improve the bonding strength of phase-change material 5 and headstock body 1.Be positioned at headstock body column type cavity 19 place and have headstock body screw hole 18, headstock body 1 is processed with headstock tool setting plane 14.
As shown in Figure 4, the structure of tailstock body 6 is: tailstock body 6 one end is that lathe is equipped with fixture interface shape (as cylinder circular cone or impression formula), and top lock-screw 7 is installed, the other end is tailstock body column type cavity 21, be convenient to blank rotation and be positioned at optional position, and process trapezoidal thread at the inwall of tailstock body column type cavity 21, improve the bonding strength of phase-change material 5 and tailstock body 6.Be positioned at tailstock body column type cavity 21 place and have tailstock body screw hole 20, tailstock body 6 is processed with tailstock tool setting plane 12.
Upper box 3 and lower box 8 are adopted as symmetrical structure, and the inner surface of upper box 3 and lower box 8 is all processed with spaced cylinder pit.Array of sizes is designed to, with headstock body 1 and the complete outfit of tailstock body 6 according to clamping parts.For ensureing to repeat installation accuracy, upper lower box and headstock body 1 and tailstock body 6 are located by connecting by taper bolt.The design of cylinder pit, improves the bonding strength of phase-change material 5 and upper lower box, enhances rigidity of support.
The head of trip bolt 2 is milled with groove.After adding casting phase-change material 5, screw is made to be in self-locking state.
The utility model with to knife face for benchmark processing head pedestal 1 and tailstock body 6, ensure that two pieces benchmark is identical; Casing 3 and lower box 8 is installed under special fixture ensures headstock body 1 and the coaxial mounted prerequisite of tailstock body 6, and equipped setting circle taper pin.Realize repeating installation accuracy within 0.01mm.
In actual use procedure, operate as follows:
The first step, selects a set of suitable phase-change material support fixture according to work pieces process part.
Second step, the position of the good headstock body 1 of mounting and adjusting and tailstock body 6 on assembling jig special, one is ensure coaxially, and two is ensure that headstock tool setting plane 14 is parallel with tailstock tool setting plane 12.
3rd step, installs casing 3 and lower box 8, joins and makes eight circular cone alignment pins 10, realizes the accurate connection of headstock body 1, tailstock body 6 and upper lower box.
4th step, installs workpiece blank 4, and adjustment trip bolt 2, makes workpiece blank 4 go to desired location, tighten top lock-screw 7 and trip bolt 2.
5th step, installs left side cover plate 9 and right side cover plate 13.
6th step, blocks lower box 8 tapping hole, and to be cast the phase-change material 5 dissolved by upper box 3 tapping hole, phase-change material 5 cooling curing, is formed with milling die joint 22 simultaneously.
7th step, positioning datum processed on special marking press, i.e. impression and drill centers on pallet.
8th step, lays down left side cover plate 9, right side cover plate 13 and upper box 3.
9th step, is installed on lathe and processes, and completes the processing (with milling die joint 22 for boundary) of part 23 the first half, as shown in Figure 5 and Figure 6 through roughing, fine finishining.
Tenth step, unloads lower clamp, installs casing 3 and left and right sides cover plate.
11 step, to be cast the phase-change material 5 dissolved by upper box 3 tapping hole again.
12 step, after phase-change material 5 cooling curing, lays down left and right sides cover plate and lower box 8.
13 step, is again installed on lathe and processes, and completes the processing of part 23 the latter half, as shown in Figure 7 and Figure 8 through roughing, fine finishining.
14 step, takes off fixture, dissolves phase-change material 5, loose trip bolt 2, takes out workpiece, completes clamping and the processing of a part 23.
As long as later part 23 is processed repeat above-mentioned 4th to the 14 step, removing the 7th step (it is manufacture benchmark to use that the 7th step only uses at new fixture).
More than describing is to explanation of the present utility model, and be not the restriction to utility model, the utility model limited range, see claim, within protection domain of the present utility model, can do any type of amendment.
Claims (6)
1. a Low rigidity turbine blade milling fixture, it is characterized in that: comprise lower box (8), the head of described lower box (8) is connected with headstock body (1) by alignment pin, the afterbody of described lower box (8) is connected with tailstock body (6) by alignment pin and screw, workpiece blank (4) is installed on headstock body (1), in the recessed storehouse that lower box (8) and tailstock body (6) surround, and by trip bolt (2), locating piece (17) and top lock-screw (7) locking, workpiece blank (4) is fixed on headstock body (1) and tailstock body (6) by multiple trip bolt (2) simultaneously, also comprise and lower box (8) symmetrically arranged upper box (3), the two ends of described upper box (3) are fixed on headstock body (1) and tailstock body (6) respectively by circular cone alignment pin (10) and casing mounting screw (11), the both sides of described headstock body (1) and tailstock body (6) are fixed with left side cover plate (9) and right side cover plate (13) respectively by side cover plate mounting screw (15), also comprise phase-change material (5), described phase-change material (5) pours in casing through the tapping hole of casing.
2. a kind of Low rigidity turbine blade milling fixture as claimed in claim 1, it is characterized in that: described phase-change material (5) is low melting point tin cerrobase alloy, fusing point is at 80 ~ 90 degree, and its expansion rate is 0.01%.
3. a kind of Low rigidity turbine blade milling fixture as claimed in claim 1, it is characterized in that: the structure of described headstock body (1) is: described headstock body (1) one end is that lathe is equipped with fixture interface shape, and have centre bore (16) in its end, the other end is headstock body column type cavity (19), and process trapezoidal thread at the inwall of headstock body column type cavity (19), be positioned at headstock body column type cavity (19) place and have headstock body screw hole (18), described headstock body (1) is processed with headstock tool setting plane (14).
4. a kind of Low rigidity turbine blade milling fixture as claimed in claim 1, it is characterized in that: the structure of described tailstock body (6) is: described tailstock body (6) one end is that lathe is equipped with fixture interface shape, and top lock-screw (7) is installed, the other end is tailstock body column type cavity (21), and process trapezoidal thread at the inwall of tailstock body column type cavity (21), be positioned at tailstock body column type cavity (21) place and have tailstock body screw hole (20), described tailstock body (6) is processed with tailstock tool setting plane (12).
5. a kind of Low rigidity turbine blade milling fixture as claimed in claim 1, it is characterized in that: described upper box (3) and lower box (8) are adopted as symmetrical structure, the inner surface of upper box (3) and lower box (8) is all processed with spaced cylinder pit.
6. a kind of Low rigidity turbine blade milling fixture as claimed in claim 1, is characterized in that: the head of described trip bolt (2) is milled with groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520634269.5U CN204867993U (en) | 2015-08-21 | 2015-08-21 | Low rigidity turbine blade milling fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520634269.5U CN204867993U (en) | 2015-08-21 | 2015-08-21 | Low rigidity turbine blade milling fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204867993U true CN204867993U (en) | 2015-12-16 |
Family
ID=54812417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520634269.5U Expired - Fee Related CN204867993U (en) | 2015-08-21 | 2015-08-21 | Low rigidity turbine blade milling fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204867993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057992A (en) * | 2015-08-21 | 2015-11-18 | 江南大学 | Low-rigidity turbine blade milling clamp and use method thereof |
-
2015
- 2015-08-21 CN CN201520634269.5U patent/CN204867993U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057992A (en) * | 2015-08-21 | 2015-11-18 | 江南大学 | Low-rigidity turbine blade milling clamp and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20160821 |