CN220944252U - Numerical control milling clamp for lifting lug of gas turbine - Google Patents
Numerical control milling clamp for lifting lug of gas turbine Download PDFInfo
- Publication number
- CN220944252U CN220944252U CN202323016642.4U CN202323016642U CN220944252U CN 220944252 U CN220944252 U CN 220944252U CN 202323016642 U CN202323016642 U CN 202323016642U CN 220944252 U CN220944252 U CN 220944252U
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- mounting plate
- mounting
- lifting lug
- hole
- lifting
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- 238000003801 milling Methods 0.000 title claims abstract description 25
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 238000003754 machining Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Jigs For Machine Tools (AREA)
Abstract
The utility model discloses a numerical control milling clamp for a lifting lug of a gas turbine, wherein a supporting seat is arranged at the upper end of a fixed seat; the supporting seat comprises a concave mounting plate and mounting edges with two ends protruding forwards; the mounting edge is provided with an empty knife slot, and the outer side of the empty knife slot is provided with a clamping table; nuts are welded at the upper end and the lower end of the connecting block respectively to form a bracket; the bracket is welded on the end face of the clamping table; the arc surfaces of the two lifting lugs are symmetrically arranged on the mounting plate, two inner holes on the arc surfaces of the lifting lugs are correspondingly placed with screw holes of the mounting plate, and the molded surface to be processed is lapped on the mounting edge; the inner hexagon screw a passes through the arc surface hole of the lifting lug to be locked on the mounting plate; the center of the pressing plate is provided with a mounting hole corresponding to the through hole, two ends of the pressing plate are tightly attached to the arc surfaces of the two lifting lugs, and the two lifting lugs are tightly pressed on the mounting plate through the inner hexagon screw b; and the inner hexagon screw c penetrates through a nut on the bracket to tightly prop and fix the side wall of the profile to be processed of the lifting lug. According to the utility model, two lifting lugs are clamped once per clamping, so that the clamping time is saved.
Description
Technical Field
The utility model relates to the technical field of clamps, in particular to a numerical control milling clamp for a lifting lug of a gas turbine.
Background
The lifting lug is a part on the project of the gas turbine exhaust device, the lifting lug is a machining part, the material 0Cr25Ni20 is specifically designed (figures 1 and 2). The part has complex shape and high requirement on dimensional accuracy. The processing size is 2-phi 12 holes, which are required to be perpendicular to the 2-phi 13 holes of the parts. Because 2-phi 12 is the final machining procedure, other molded surfaces of the part are machined, the surface to be machined of the 2-phi 12 hole is adjusted to be in a horizontal direction perpendicular to a tool of a machine tool, the clamping and positioning are very difficult due to the complex shape of the part, and meanwhile, the part is easy to vibrate during machining, so that an inner hole of the 2-phi 13 and other machined molded surfaces are easily damaged, and the size of the machined part is out of tolerance.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a numerical control milling clamp for a lifting lug of a gas turbine, which comprises the following specific technical scheme:
A numerical control milling clamp for a lifting lug of a gas turbine comprises a base, a pressing plate and a connecting block;
The base is T-shaped and consists of a fixed seat and a supporting seat, and the supporting seat is arranged at the upper end of the fixed seat;
the supporting seat comprises a concave mounting plate and mounting edges with two ends protruding forwards;
The center of the mounting plate is provided with a through hole, and four corners of the through hole along the circumferential direction are provided with symmetrical screw holes;
the mounting edge is provided with an empty knife slot, and the outer side of the empty knife slot is provided with a clamping table;
Nuts are welded at the upper end and the lower end of the connecting block respectively, and the nuts, the nuts and the connecting block are welded together to form a bracket;
the support is welded on the end face of the clamping table and is arranged in parallel with the side wall of the mounting plate;
The arc surfaces of the two lifting lugs are symmetrically arranged on the mounting plate, two inner holes on the arc surfaces of the lifting lugs are correspondingly placed with screw holes of the mounting plate, and the molded surface to be processed is lapped on the mounting edge;
the inner hexagon screw a passes through the arc surface hole of the lifting lug to be locked on the mounting plate;
The center of the pressing plate is provided with a mounting hole corresponding to the through hole, two ends of the pressing plate are tightly attached to the arc surfaces of the two lifting lugs, and the two lifting lugs are tightly pressed on the mounting plate through the inner hexagon screw b;
and the inner hexagon screw c penetrates through a nut on the bracket to tightly prop and fix the side wall of the profile to be processed of the lifting lug.
A numerical control milling fixture for gas turbine lug, its preferred scheme is, the welding position of support sets up in the relevant position of cassette according to the requirement of placing of lug.
A numerical control milling fixture for gas turbine lug, its preferred scheme does, the width of installation limit is according to lug waiting to process profile width setting, and the position of empty sword groove is according to waiting to process the position setting of face hole.
A numerical control milling clamp for a lifting lug of a gas turbine is characterized in that a gasket is arranged between an inner hole of an arc-shaped surface of the lifting lug and an inner hexagon screw a.
An operation method of a numerical control milling clamp for a lifting lug of a gas turbine comprises the following steps: in the milling process, the nut, the connecting block and the nut are welded together according to the drawing direction and then welded at the corresponding position of the clamping table. Then clamping the lifting lug on the mounting plate of the base, and fixing the lifting lug by using the inner hexagon screw a and the gasket, and positioning at the same time. And the inner hexagon screw c penetrates through the double nuts and is screwed to the direction of the lifting lug, and the inner hexagon screw c is used as an auxiliary support, so that the stability of the part is improved. And the last two lifting lugs are fixed by a pressing plate, an inner hexagon screw b and a gasket, so that vibration in the part machining process is prevented.
After the clamping is completed, the clamp is fixed on a numerical control milling workbench, and numerical control milling of the 2-phi 12 holes of the lifting lugs can be started.
Advantageous effects
In the milling process, the clamp is used for clamping 2 lifting lugs once per clamping, so that the clamping time is saved. The fixture is fixed on a numerical control milling workbench and can be reused after alignment, the fixture not only can fix parts into a stable processing state and create conditions for processing 2-phi 12 holes, but also is provided with a vibration-proof pressing plate to prevent the parts from vibrating in the processing process and protect the 2-phi 13 inner holes and other finished processing molded surfaces from being damaged. In addition, the clamp is further provided with a double-station clamping position, two parts can be clamped and machined simultaneously, machining loading and unloading time is shortened, and machining efficiency is improved.
Drawings
FIG. 1 is a schematic view of a shackle design;
FIG. 2 is a side view of FIG. 1;
fig. 3 is a schematic view of a lifting lug in a three-dimensional structure;
FIG. 4 is a front view of a shackle milling fixture;
Fig. 5 is a schematic diagram of a shackle milling fixture.
In the figure: 1. the tool comprises a bottom plate, a pressing plate, a connecting block, a fixing seat, a supporting seat, a mounting plate, a mounting edge, a free cutter groove, a clamping table, a nut, a lifting lug, an arc-shaped surface, an inner hole and a washer, wherein the clamping table is composed of a bottom plate, the pressing plate, the connecting block, the fixing seat, the supporting seat, the mounting plate, the mounting edge, the free cutter groove, the clamping table, the nut, the lifting lug, the arc-shaped surface, the inner hole and the inner hole, the arc-shaped surface, the molded surface to be machined, the hexagon screws a and 16, the hexagon screws b and 17, the hexagon screws c and 18, and the gasket.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
1-5, A numerical control milling clamp for a lifting lug of a gas turbine comprises a base 1, a pressing plate 2 and a connecting block 3;
the base 1 is T-shaped and consists of a fixed seat 4 and a supporting seat 5, and the supporting seat 5 is arranged at the upper end of the fixed seat 4;
the supporting seat 5 comprises a concave mounting plate 6 and mounting edges 7 with two ends protruding forwards;
The center of the mounting plate 6 is provided with a through hole, and four corners of the through hole along the circumferential direction are provided with symmetrical screw holes;
The mounting edge 7 is provided with an empty cutter groove 8, and the outer side of the empty cutter groove 8 is provided with a clamping table 9;
Nuts 10 are respectively welded at the upper end and the lower end of the connecting block 3, and the nuts, the nuts and the connecting block are welded together to form a bracket;
the bracket is welded on the end face of the clamping table 9 and is arranged in parallel with the side wall of the mounting plate 6;
The arc surfaces 12 of the two lifting lugs 11 are symmetrically arranged on the mounting plate 6, and the two inner holes 13 on the arc surfaces 12 of the lifting lugs 11 are correspondingly placed with screw holes of the mounting plate 6, and the molded surface 14 to be processed is lapped on the mounting edge 7;
The inner hole 13 penetrating through the arc surface 12 of the lifting lug 11 is locked on the mounting plate 6 through the inner hexagon screw a 15;
The center of the pressing plate 2 is provided with a mounting hole corresponding to the through hole, two ends of the pressing plate 2 are tightly attached to the arc-shaped surfaces 12 of the two lifting lugs 11, and the two lifting lugs 11 are tightly pressed on the mounting plate 6 through the inner hexagon screw b 16;
The inner hexagon screw c17 penetrates through the nut 10 on the bracket to tightly prop and fix the side wall of the molded surface 14 to be processed of the lifting lug 11.
The welding position of the bracket is arranged at the corresponding position of the clamping table 9 according to the placing requirement of the lifting lug 11.
The width of the mounting edge is set according to the width of the profile to be processed of the lifting lug, and the position of the empty knife groove is set according to the position of the profile hole to be processed.
A gasket 18 is arranged between the inner hole 13 of the arc-shaped surface 12 of the lifting lug 11 and the inner hexagon screw a 15.
An operation method of a numerical control milling clamp for a lifting lug of a gas turbine comprises the following steps: in the milling process, the nut, the connecting block and the nut are welded together according to the drawing direction and then welded at the corresponding position of the clamping table. Then clamping the lifting lug on the mounting plate of the base, and fixing the lifting lug by using the inner hexagon screw a and the gasket, and positioning at the same time. And the inner hexagon screw c penetrates through the double nuts and is screwed to the direction of the lifting lug, and the inner hexagon screw c is used as an auxiliary support, so that the stability of the part is improved. And the last two lifting lugs are fixed by a pressing plate, an inner hexagon screw b and a gasket, so that vibration in the part machining process is prevented.
After the clamping is completed, the clamp is fixed on a numerical control milling workbench, and numerical control milling of the 2-phi 12 holes of the lifting lugs can be started.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A numerical control milling fixture for gas turbine lug, its characterized in that: comprises a base, a pressing plate and a connecting block;
The base is T-shaped and consists of a fixed seat and a supporting seat, and the supporting seat is arranged at the upper end of the fixed seat;
the supporting seat comprises a concave mounting plate and mounting edges with two ends protruding forwards;
The center of the mounting plate is provided with a through hole, and four corners of the through hole along the circumferential direction are provided with symmetrical screw holes;
the mounting edge is provided with an empty knife slot, and the outer side of the empty knife slot is provided with a clamping table;
Nuts are welded at the upper end and the lower end of the connecting block respectively, and the nuts, the nuts and the connecting block are welded together to form a bracket;
the support is welded on the end face of the clamping table and is arranged in parallel with the side wall of the mounting plate;
The arc surfaces of the two lifting lugs are symmetrically arranged on the mounting plate, two inner holes on the arc surfaces of the lifting lugs are correspondingly placed with screw holes of the mounting plate, and the molded surface to be processed is lapped on the mounting edge;
the inner hexagon screw a passes through the arc surface hole of the lifting lug to be locked on the mounting plate;
The center of the pressing plate is provided with a mounting hole corresponding to the through hole, two ends of the pressing plate are tightly attached to the arc surfaces of the two lifting lugs, and the two lifting lugs are tightly pressed on the mounting plate through the inner hexagon screw b;
and the inner hexagon screw c penetrates through a nut on the bracket to tightly prop and fix the side wall of the profile to be processed of the lifting lug.
2. A numerically controlled milling fixture for a gas turbine engine lifting lug as recited in claim 1, wherein: the width of the mounting edge is set according to the width of the profile to be processed of the lifting lug, and the position of the empty knife groove is set according to the position of the profile hole to be processed.
3. A numerically controlled milling fixture for a gas turbine engine lifting lug as recited in claim 1, wherein: and a gasket is arranged between the inner hole of the arc-shaped surface of the lifting lug and the inner hexagon screw a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323016642.4U CN220944252U (en) | 2023-11-08 | 2023-11-08 | Numerical control milling clamp for lifting lug of gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323016642.4U CN220944252U (en) | 2023-11-08 | 2023-11-08 | Numerical control milling clamp for lifting lug of gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220944252U true CN220944252U (en) | 2024-05-14 |
Family
ID=91014527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323016642.4U Active CN220944252U (en) | 2023-11-08 | 2023-11-08 | Numerical control milling clamp for lifting lug of gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220944252U (en) |
-
2023
- 2023-11-08 CN CN202323016642.4U patent/CN220944252U/en active Active
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