CN216029384U - Milling machine fixture for special profile of blade - Google Patents
Milling machine fixture for special profile of blade Download PDFInfo
- Publication number
- CN216029384U CN216029384U CN202122298180.4U CN202122298180U CN216029384U CN 216029384 U CN216029384 U CN 216029384U CN 202122298180 U CN202122298180 U CN 202122298180U CN 216029384 U CN216029384 U CN 216029384U
- Authority
- CN
- China
- Prior art keywords
- blade
- supporting seat
- milling machine
- pressing plate
- positioning block
- 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
Images
Landscapes
- Milling Processes (AREA)
Abstract
The utility model provides a milling machine fixture for a special profile of a blade, which comprises a bottom plate, a combined positioning block, a pressing plate and the like which are arranged on the bottom plate, wherein the combined positioning block and the pressing plate and the like are coaxially arranged, a pressing plate assembly is also arranged between the combined positioning block and the pressing plate and the like, one end of the pressing plate assembly tightly presses the blade arranged on the combined positioning block, and the other end of the pressing plate assembly abuts against the pressing plate and the like; the combined positioning block comprises a base, and a cambered surface supporting seat and a horizontal supporting seat which are integrally arranged on the base, wherein the horizontal supporting seat is arranged at one side of the bottom of the cambered surface supporting seat, which is close to the pressure plate and is equal to the height block, and the upper cambered surface of the cambered surface supporting seat is tightly attached to the inner cambered surface of the blade; the axial direction of the blade is positioned on the cambered surface supporting seat through a positioning pin. According to the utility model, after the molded surface and two ends are cut and processed on line, the groove part of the molded surface is processed by using a common milling machine, so that the high-cost processing of a numerical control milling machine is eliminated; only 5mm of allowance is left at two ends of the product blank, so that the material cost is saved; the wire-electrode cutting processing molded surface has no problem of uneven molded surface allowance.
Description
Technical Field
The utility model mainly relates to the field of milling machine fixtures for blades, in particular to a milling machine fixture for a special profile of a blade.
Background
At present, for the processing of the blade with the equal section, a numerical control milling machine is adopted to mill a molded surface and then linearly cut two end surfaces. And in the numerical control milling process, clamping parts with the thickness of more than 25mm are required to be reserved at two ends of the blade. The blade blank adopts the cuboid form, and blade profile machining allowance is great and inhomogeneous. The numerical control milling machine belongs to a high-precision machine tool and has high processing cost.
The problems of the existing products are as follows: 1, the process allowance left at the two ends of the blank is large, 25mm, and the material cost is high; 2, the machining allowance of the molded surface is large and uneven, so that the machining cutter is quickly abraded; and 3, the processing equipment has high cost.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a milling machine fixture for a special profile of a blade, which comprises a base plate 1, a combined positioning block 2 and a pressure plate equal-height block 6, wherein the combined positioning block 2 and the pressure plate equal-height block 6 are arranged on the base plate 1 in a coaxial manner, a pressure plate assembly is also arranged between the combined positioning block 2 and the pressure plate equal-height block 6, one end of the pressure plate assembly is tightly pressed on the blade 44 arranged on the combined positioning block 2, and the other end of the pressure plate assembly is abutted against the pressure plate equal-height block 6;
the combined positioning block 2 comprises a base 21, and an arc surface supporting seat 22 and a horizontal supporting seat 23 which are integrally arranged on the base 21, wherein the horizontal supporting seat 23 is arranged at one side of the bottom of the arc surface supporting seat 22, which is close to the pressure plate equal-height block 6, and the upper arc surface of the arc surface supporting seat 22 is tightly attached to the inner arc surface of the blade 4;
the axial direction of the blade 4 is positioned on the cambered surface supporting seat 22 through the blade positioning pin 3.
Preferably, the bottom of the cambered surface supporting seat 22 is in seamless connection with the horizontal supporting seat 23 through a V-shaped groove 10, and the V-shaped groove 10 supports the steam inlet edge of the blade 4.
Preferably, the pressing plate assembly comprises a pressing plate 5, an adjusting bolt 7 and a gasket 8, the pressing plate 5 is horizontally arranged, a long strip-shaped through hole 9 is formed in the middle of the pressing plate, the adjusting bolt 7 is installed in the long strip-shaped through hole 9 through the gasket 8, and the bottom of the adjusting bolt 7 is tightly pressed with the bottom plate 1.
Preferably, the pressure plate equal-height block 6 is T-shaped, the horizontal end of the pressure plate equal-height block 6 is fixed on the bottom plate 1 through a bolt, a groove 11 is formed in one side, close to the combined positioning block 2, of the vertical end of the pressure plate equal-height block 6, and the pressure plate 5 is abutted to the inside of the groove 11.
Preferably, one side of the pressing plate 5 close to the groove is square, one side close to the combined positioning block is trapezoidal, and the trapezoidal inclined plane is pressed with the blade 4.
Preferably, the trapezoidal side of the pressure plate 5 exceeds half the horizontal distance of the blade.
Preferably, the base 21 is fixedly installed on the bottom plate 1 through the base positioning pin 12 and the installation screw 13, and the base positioning pin 12 and the installation screw 13 are respectively provided with two on the diagonal angle of the base 21.
The utility model has the beneficial effects that: the structure is simple, the operation is convenient, the groove part of the molded surface is machined by using a common milling machine after the molded surface and two ends are machined by online cutting, the purpose of getting rid of the high-cost machining tool of the numerical control milling machine is realized, and the cost is reduced; only 5mm of allowance is left at two ends of the product blank, so that the material cost is saved; the wire-electrode cutting processing molded surface has no problem of uneven molded surface allowance.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a left side view of the present invention;
in the figure, the position of the upper end of the main shaft,
1. a base plate; 2. the combined positioning block 21, the base 22, the cambered surface supporting seat 23 and the horizontal supporting seat; 3. a blade positioning pin; 4. a blade; 5. pressing a plate; 6. pressing plates and equal-height blocks; 7. adjusting the bolt; 8. a gasket; 9. a strip-shaped through hole; 10. a V-shaped groove; 11. a groove; 12. a base positioning pin; 13. and (5) mounting screws.
Detailed Description
In order to make the technical solutions of the present invention better understood and make the above features, objects, and advantages of the present invention more comprehensible, the present invention is further described with reference to the following examples. The examples are intended to illustrate the utility model only and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 3, the present invention includes: the combined positioning block 2 and the pressure plate equal-height block 6 are coaxially arranged on the bottom plate 1, a pressure plate assembly is also arranged between the combined positioning block 2 and the pressure plate equal-height block 6, one end of the pressure plate assembly is tightly pressed on the blade 44 arranged on the combined positioning block 2, and the other end of the pressure plate assembly is abutted on the pressure plate equal-height block 6;
the combined positioning block 2 comprises a base 21, and an arc surface supporting seat 22 and a horizontal supporting seat 23 which are integrally arranged on the base 21, wherein the horizontal supporting seat 23 is arranged at one side of the bottom of the arc surface supporting seat 22, which is close to the pressure plate equal-height block 6, and the upper arc surface of the arc surface supporting seat 22 is tightly attached to the inner arc surface of the blade 4;
the axial direction of the blade 4 is positioned on the cambered surface supporting seat 22 through the blade positioning pin 3.
In this embodiment, preferably, the bottom of the arc support seat 22 is seamlessly connected with the horizontal support seat 23 through the V-shaped groove 10, and the V-shaped groove 10 supports the steam inlet edge of the blade 4.
Set up above-mentioned structure, utilize V type groove to play the purpose of connecting cambered surface supporting seat and horizontal support seat on the one hand, on the other hand plays the support blade, prevents the effect of removal, effectively guarantees the machining precision of later stage blade terminal surface shroud.
In this implementation, it is preferred that the pressing plate assembly includes pressing plate 5, adjusting bolt 7 and gasket 8, pressing plate 5 level sets up, and the centre sets up rectangular shape through-hole 9, adjusting bolt 7 is installed through gasket 8 in the rectangular shape through-hole 9, adjusting bolt 7's bottom compresses tightly with bottom plate 1.
Set up above-mentioned structure, improve the flexibility of clamp plate, also can play convenient adjustment simultaneously to the degree that compresses tightly of blade, utilize the processing operation in later stage.
In this embodiment, preferably, the pressure plate equal-height block 6 is in a T shape, the horizontal end of the pressure plate equal-height block 6 is fixed on the bottom plate 1 through a bolt, a groove 11 is formed in one side, close to the combined positioning block 2, of the vertical end of the pressure plate equal-height block 6, and the pressure plate 5 is abutted in the groove 11.
Set up above-mentioned structure, utilize the recess can prevent effectively that the clamp plate from sliding at will in the use, playing spacing effect.
In this embodiment, preferably, one side of the pressing plate 5 close to the groove is square, one side close to the combined positioning block is trapezoidal, and the trapezoidal inclined plane is pressed against the blade 4.
Set up above-mentioned structure, the clamp plate of trapezoidal side plays the profile modeling effect to the blade cambered surface, also can further do benefit to and compress tightly the blade.
In the present embodiment, the trapezoidal side of the pressure plate 5 preferably exceeds half the horizontal distance of the blade.
By the arrangement of the structure, the position of the blade is not excessively occupied, and the machining operation of the milling machine is prevented from being hindered.
In the present embodiment, the base 21 is preferably fixedly mounted on the bottom plate 1 by the base positioning pins 12 and the mounting screws 13, and the base positioning pins 12 and the mounting screws 13 are respectively provided in two diagonally opposite corners of the base 21.
By the arrangement of the structure, the high blocks of the pressure plate and the combined positioning block are coaxial on the premise of matching, so that the purposes of improving the mounting efficiency and the mounting stability can be achieved by using the positioning pin and the screw.
In use, the processing is carried out in two steps:
1. adjusting the angle between the bottom plate and the Y direction of the machine tool to enable the thickness of the shroud band on the end face of the inner ring of the blade to be approximately equal after machining, pressing the bottom plate 1 tightly, and machining the shroud bands of the inner ring of the blade in batches;
2. and adjusting the angle between the bottom plate and the Y direction of the machine tool to enable the thickness of the shroud band on the end surface of the outer ring of the blade to be approximately equal after processing, compressing the bottom plate 1, and processing the shroud bands of the outer ring of the blade in batches.
Because the blade shroud is a circular arc surface, a common machine tool belongs to linear machining, only approximate thickness can be machined to be consistent, but the diameter of the circular arc of the blade shroud is very large and is normally more than 1000mm, so the length of the shroud to be machined is very short, the error between the straight line and the circular arc is less than 0.1mm, and a bench worker polishing procedure is carried out subsequently, so that the error is controlled to be lower, and the requirement of the product drawing tolerance is completely met.
In addition, the prior art is that the profile is milled in numerical control, needs the clamping part through anchor clamps both ends in the past about 25mm, changes into above-mentioned wire-electrode cutting and cuts the profile into, and both ends do not need the centre gripping, only need stand and place on the wire-electrode cutting machine tool workstation, lean on magnet suction processing, save the clamping part.
The above-described embodiments are merely illustrative of the principles and utilities of the present patent application and are not intended to limit the present patent application. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of this patent application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of this patent application.
Claims (7)
1. The milling machine fixture for the special profile of the blade is characterized by comprising a base plate (1), and a combined positioning block (2) and a pressure plate equal-height block (6) which are arranged on the base plate (1), wherein the combined positioning block (2) and the pressure plate equal-height block (6) are coaxially arranged, a pressure plate assembly is also arranged between the combined positioning block (2) and the pressure plate equal-height block (6), one end of the pressure plate assembly is tightly pressed on the blade (4) arranged on the combined positioning block (2), and the other end of the pressure plate assembly is abutted against the pressure plate equal-height block (6);
the combined positioning block (2) comprises a base (21), and an arc surface supporting seat (22) and a horizontal supporting seat (23) which are integrally arranged on the base (21), wherein the horizontal supporting seat (23) is arranged at one side, close to the pressure plate equal-height block (6), of the bottom of the arc surface supporting seat (22), and the upper arc surface of the arc surface supporting seat (22) is tightly attached to the inner arc surface of the blade (4);
the axial direction of the blade (4) is positioned on the cambered surface supporting seat (22) through the blade positioning pin (3).
2. A milling machine jig for a special profile of a blade according to claim 1, wherein: the bottom of the cambered surface supporting seat (22) is in seamless connection with the horizontal supporting seat (23) through a V-shaped groove (10), and the V-shaped groove (10) supports the steam inlet edge of the blade (4).
3. A milling machine jig for a special profile of a blade according to claim 2, wherein: the clamp plate assembly comprises a clamp plate (5), an adjusting bolt (7) and a gasket (8), the clamp plate (5) is horizontally arranged, a long-strip-shaped through hole (9) is formed in the middle of the clamp plate, the adjusting bolt (7) is installed in the long-strip-shaped through hole (9) through the gasket (8), and the bottom of the adjusting bolt (7) is tightly pressed with the bottom plate (1).
4. A blade special profile milling machine jig according to claim 3, characterized in that: the pressing plate equal-height block (6) is T-shaped, the horizontal end of the pressing plate equal-height block (6) is fixed on the bottom plate (1) through a bolt, a groove (11) is formed in one side, close to the combined positioning block (2), of the vertical end of the pressing plate equal-height block (6), and the pressing plate (5) is abutted to the inside of the groove (11).
5. A blade special profile milling machine jig according to claim 4, characterized in that: one side of the pressing plate (5) close to the groove is square, one side of the pressing plate close to the combined positioning block is trapezoidal, and the trapezoidal inclined plane is tightly pressed with the blade (4).
6. A blade special profile milling machine jig according to claim 5, characterized in that: the trapezoidal side of the pressure plate (5) exceeds half of the horizontal distance of the blade (4).
7. A blade special profile milling machine jig according to claim 6, characterized in that: the base (21) is fixedly installed on the bottom plate (1) through a base positioning pin (12) and a mounting screw (13), and the base positioning pin (12) and the mounting screw (13) are respectively provided with two oblique angles of the base (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122298180.4U CN216029384U (en) | 2021-09-23 | 2021-09-23 | Milling machine fixture for special profile of blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122298180.4U CN216029384U (en) | 2021-09-23 | 2021-09-23 | Milling machine fixture for special profile of blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216029384U true CN216029384U (en) | 2022-03-15 |
Family
ID=80599793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122298180.4U Active CN216029384U (en) | 2021-09-23 | 2021-09-23 | Milling machine fixture for special profile of blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216029384U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115157123A (en) * | 2022-08-25 | 2022-10-11 | 南京农业大学 | Fixture and grinding method for grinding upper citron plate side face and lower citron plate air inlet edge of gas turbine guide vane fan-shaped piece |
| CN115194594A (en) * | 2022-08-25 | 2022-10-18 | 南京农业大学 | Fixture and grinding method for grinding exhaust edge of lower citron plate of gas turbine guide vane fan-shaped piece |
-
2021
- 2021-09-23 CN CN202122298180.4U patent/CN216029384U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115157123A (en) * | 2022-08-25 | 2022-10-11 | 南京农业大学 | Fixture and grinding method for grinding upper citron plate side face and lower citron plate air inlet edge of gas turbine guide vane fan-shaped piece |
| CN115194594A (en) * | 2022-08-25 | 2022-10-18 | 南京农业大学 | Fixture and grinding method for grinding exhaust edge of lower citron plate of gas turbine guide vane fan-shaped piece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216029384U (en) | Milling machine fixture for special profile of blade | |
| CN211638451U (en) | Tool for machining inclined holes on inclined surfaces of workpieces | |
| CN205201111U (en) | Frock of inclined plane plate is taken in vertical milling machine processing | |
| CN216096598U (en) | Chamfering machine with plate fixing mechanism | |
| CN109551273B (en) | Indexable clamp for removing allowance of inner back arc of rough machining blade | |
| CN213195799U (en) | Milling machine equipment is used in processing of centrifugal pump ring flange | |
| CN211249628U (en) | Clamp for cylindrical pin cylindrical grinding plane | |
| CN203542115U (en) | Universal clamp for machining molded line of blade | |
| CN213470372U (en) | Fixing device for machining multiple holes in fixing base | |
| CN218856224U (en) | Combined clamp | |
| CN219665835U (en) | Lubricating oil pump adds clamping apparatus | |
| CN2656080Y (en) | Position rotabable knife blade cutter grinding clamping apparatus | |
| CN221019795U (en) | Blade cutting clamp of four-blade oar | |
| CN217647956U (en) | Processing jig for square inclined top workpiece | |
| CN220739728U (en) | Target wire cutting tool | |
| CN219901137U (en) | High efficiency cutting jig | |
| CN216938616U (en) | Positioning and milling clamp for two side surfaces of fan-shaped block | |
| CN213970618U (en) | Grind broach holder utensil | |
| CN220740213U (en) | Clamp for machining cambered surface parts of multiple workpieces | |
| CN216681184U (en) | Clamp for milling thin-wall shell part | |
| CN216151226U (en) | Milling groove clamping and fixing device of efficient milling machine | |
| CN215239228U (en) | Automatic end face chamfering machine | |
| CN218946451U (en) | Milling flutes anchor clamps | |
| CN218311189U (en) | Auxiliary positioning device for hole opening and broaching machining of irregular parts | |
| CN219987260U (en) | Clamp for machining low-pressure turbine working blade back sawtooth crown |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |