CN220480895U - Finish forging blade mills limit board anchor clamps - Google Patents
Finish forging blade mills limit board anchor clamps Download PDFInfo
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- CN220480895U CN220480895U CN202322118646.7U CN202322118646U CN220480895U CN 220480895 U CN220480895 U CN 220480895U CN 202322118646 U CN202322118646 U CN 202322118646U CN 220480895 U CN220480895 U CN 220480895U
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- positioning block
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- 238000005242 forging Methods 0.000 title claims abstract description 43
- 238000003801 milling Methods 0.000 claims abstract description 23
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 2
- 238000003754 machining Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a precision forging blade edge milling plate clamp which can realize high-precision positioning of a blade, and can realize fixed protection of the profile of the blade during processing of an edge plate so as to prevent processing deformation and reduce rejection rate. The blade root positioning block and the blade tip positioning block respectively press the blade profile in the middle of the back arc of the blade root and the back arc of the blade tip through profiling surfaces, and the blade root pressing block and the blade tip pressing block respectively press the blade on the blade root positioning block and the blade tip positioning block through profiling surfaces.
Description
Technical Field
The utility model relates to the technical field of machining clamps, in particular to a clamp for a milling edge plate of a precision forging blade.
Background
In general, the double-handle blade flange plates of aero-engines and gas turbines are usually processed by adopting a die forging numerical control milling mode, and the flow passage surfaces of the blade roots, the blade profiles and the flange plates are all formed by machining, and the processing method has the following defects:
1. the die forging numerical control milling needs more machining quantity, and the material utilization rate is low;
2. the die forging numerical control milling requires more processing procedures and equipment than precision forging, and has low production efficiency and high equipment cost;
3. numerical control milling is performed by die forging, and the surface is manually polished to remove the cutter marks, so that poor size is easy to generate;
4. the die forging numerical control milling part is formed by milling, and the milling process can damage a metal fiber streamline to a certain extent, so that the mechanical property of the part is reduced.
In order to improve and make up the defect of the numerical control milling process method of the die forging of the double-handle blade, the process for manufacturing the double-handle blade by precision forging is emerging. The finish forging process can directly forge the flange plates to be formed, but the large end and the small end of the flange plates of part of the double-handle blade are reversely buckled, and the finish forging cannot forge all the flange plate surfaces to be formed, so that the part of the flange plates of the double-handle finish forging blade also needs to be milled, and therefore a clamp is needed for milling the flange plates of the finish forging blade.
Disclosure of Invention
Aiming at the problem that a clamp for milling the edge plate of the precisely forged blade needs to be designed, the utility model provides the clamp for milling the edge plate of the precisely forged blade, which can realize high-precision positioning of the blade, and can realize fixed protection of the profile of the blade during the process of machining the edge plate so as to prevent machining deformation and reduce rejection rate.
The technical scheme is as follows: the utility model provides a finish forge blade mills limit board anchor clamps, its includes the bottom plate, install finish forge blade tip location compression assembly on the bottom plate, its characterized in that: the precision forging blade end positioning and compressing assembly comprises a V-shaped block support, a V-shaped positioning block and a compressing screw, wherein the bottom plate is connected with the V-shaped positioning block through the V-shaped block support, and the compressing screw is used for respectively compressing bosses or shaft handles at two ends of the precision forging blade on the V-shaped positioning block;
the blade root positioning block and the blade tip positioning block respectively press the blade on the blade root positioning block and the blade tip positioning block through profiling surfaces.
Further, the middle part of the V-shaped block support is provided with a mounting groove, the V-shaped positioning block can be slidably mounted in the mounting groove along the direction facing or far away from the blade, the V-shaped block support is also connected with a locking screw, and the locking screw is used for fixing the V-shaped positioning block and the V-shaped block support.
Still further, V type locating piece includes location portion and connecting portion, connecting portion stretches into in the mounting groove, still offered the adjustment tank in the middle of the connecting portion, the inner wall in adjustment tank with V type piece support extends to be equipped with the spring between the lug in the adjustment tank.
Furthermore, an adjusting inclined plane which is inclined upwards is arranged at the top of the connecting part, the locking screw stretches into the mounting groove and contacts with the adjusting inclined plane, and the contact surface of the locking screw and the V-shaped positioning block is parallel to the adjusting inclined plane.
Further, the precision forging blade profile positioning and compressing assembly further comprises a compressing lever and a hinge seat, the hinge seat is arranged on the bottom plate, the middle part of the compressing lever is rotationally connected with the hinge seat through a rotating rod, the parts of the compressing lever, which are positioned on two sides of the rotating rod, are respectively an adjusting part and a compressing part, the adjusting part is used for adjusting the rotation of the compressing lever, and the compressing part is used for setting the blade root compressing block and the blade tip compressing block.
Furthermore, the blade root compressing block and the compressing part of the compressing lever are integrally arranged, the blade root compressing block is arranged corresponding to the blade root positioning block, and the contact surface of the blade root compressing block and the blade is a profiling surface.
Furthermore, the blade tip compacting block and the blade tip positioning block are correspondingly arranged, the middle of the blade tip compacting block and the middle of the blade tip positioning block are respectively hollowed out, and the upper end and the lower end of the hollowed-out part are respectively contacted with the blade through profiling surfaces.
Further, the blade tip compressing block is connected with the compressing lever through a rotating shaft, and extends to the top of the compressing part and has a certain gap.
Further, a return spring is connected between the pressing part and the hinge base.
The beneficial effects of the utility model are as follows: besides adopting the positioning and pressing components at the end parts of the precision forging blades to position and press bosses or shaft handles at the two ends of the precision forging blades, the positioning and pressing components at the profile positions of the blade roots and the blade tips of the precision forging blades are also adopted to position and press profiles, so that the blades can be effectively fixed to facilitate milling of the edge plates, and meanwhile, the positioning surfaces and the pressing surfaces adopt profiling designs, so that the profiles can be effectively positioned and prevented from being damaged by pressing; in addition, the axial direction of the blade is positioned by adopting an axial positioning pin, and meanwhile, the two ends of the precisely forged blade are supported in an auxiliary way by adopting V-shaped positioning blocks and are pressed by adopting pressing screws, so that the deformation of a cutter relieving caused by machining of bosses or shaft handles at the two ends of the precisely forged blade during edge milling can be reduced better.
Drawings
FIG. 1 is a schematic view of the structure of the present utility model (equipped with blades);
FIG. 2 is a schematic view of the structure of the present utility model (without blades assembled);
FIG. 3 is a schematic view of the mounting structure of the V-shaped positioning block and the V-shaped block support;
FIG. 4 is a schematic view of a tip hold down block connection;
FIG. 5 is an enlarged schematic view of FIG. 4 at A;
FIG. 6 is a schematic view of a tip positioning block.
Detailed Description
The utility model provides a finish forging blade mills limit plate anchor clamps as shown in figure 1, figure 2, it includes bottom plate 1, install finish forging blade tip location hold-down subassembly on bottom plate 1, finish forging blade tip location hold-down subassembly includes V type piece support 2, V type locating piece 3, hold-down screw 4, bottom plate 1 is connected with V type locating piece 3 through V type piece support 2, hold-down screw 4 is used for compressing tightly boss or the arbor at finish forging blade both ends respectively on V type locating piece 3, the boss or the arbor at finish forging blade both ends of so design can be used for fixing a position and compress tightly with the hold-down subassembly.
The bottom plate 1 is also provided with a precision forging blade profile positioning and compressing assembly, the precision forging blade end positioning and compressing assembly and the precision forging blade profile positioning and compressing assembly are respectively positioned at two sides of the blade edge plate, the precision forging blade profile positioning and compressing assembly comprises an axial positioning pin 5, a blade root positioning block 6, a blade tip positioning block 7, a blade root compressing block 8 and a blade tip compressing block 9, the axial positioning pin 5 is arranged on an axial positioning seat 10 and is used for propping against the blade back edge plate along the axial direction of the blade, the axial positioning pin 5 is fixed on the axial positioning seat 10 in an interference fit manner, the axial freedom degree of the blade is controlled, the axial positioning seat 10 is also provided with a blade root positioning block 6, the blade tip positioning block is connected with the bottom plate 1 through a mounting support 15, the blade root positioning block 6 and the blade tip positioning block 7 are propped against the blade profile in the middle of a blade root back arc and the blade profile of the blade tip back arc through profiling surfaces respectively, blade root compressing blocks 8 and blade tip compressing blocks 9 respectively compress blades on a blade root positioning block 6 and a blade tip positioning block 7 through profiling surfaces, when the fixture is used, bosses or shafts at two ends of the blades are arranged on a V-shaped positioning block 3, an axial positioning pin 5 is used for propping against a back flange plate of the blades along the axial direction of the blades, after blade profiles of the blades are positioned through the blade root and the blade tip positioning blocks, two ends of the blades are fixed through tightening compressing screws 4, the blade profiles are fixed through controlling the blade root and the blade tip compressing blocks, so that clamping of the blades is realized, the main compressing effect is realized on the blades, the auxiliary compressing effect is realized on two sides of the bosses or shafts, the V-shaped positioning block related components and the blade root positioning block related components are respectively arranged on two sides of the flange plate at the big end of the blades, the V-shaped positioning block related components and the blade tip positioning block related components are respectively arranged on two sides of the flange plate at the small end of the blades, thereby respectively fixing the two sides of the flange plate and facilitating the processing of the flange plate.
Specifically, referring to fig. 3, a mounting groove 201 is formed in the middle of the V-shaped block support 2, the V-shaped positioning block 3 can be slidably mounted in the mounting groove 201 along a direction towards or away from the blade, the V-shaped block support 2 is further connected with a locking screw 202, and the locking screw 202 is used for fixing the V-shaped positioning block 3 and the V-shaped block support 2.
The V-shaped positioning block 3 comprises a positioning part 301 and a connecting part 302, the connecting part 302 extends into the mounting groove 201, an adjusting groove 303 is further formed in the middle of the connecting part 302, and a spring 304 is arranged between the inner wall of the adjusting groove 303 and a protruding block 203 of the V-shaped block support 2 extending into the adjusting groove.
The top of the connecting part 302 is provided with an upward inclined adjusting inclined plane 305, the locking screw 202 extends into the mounting groove 201 and contacts with the adjusting inclined plane 305, and the contact surface of the locking screw 202 and the V-shaped positioning block 3 is parallel to the adjusting inclined plane 305.
The working angle of the V-shaped positioning block 3 is 90 degrees, the upper positioning surface and the lower positioning surface of the V-shaped positioning block are simultaneously contacted with the end parts of the blades, meanwhile, the relative position of the V-shaped positioning block 3 and the V-shaped block support 2 can be adjusted according to requirements when the blades are installed so as to be convenient for better fitting the blades to play a positioning role, and then the V-shaped positioning block can be locked by tightening the locking screw to abut against the adjusting inclined plane.
As for the precision forging blade profile positioning and compressing assembly, referring to fig. 1 and 2, the precision forging blade profile positioning and compressing assembly further comprises a compressing lever 11 and a hinge seat 12, the hinge seat 12 is mounted on the bottom plate 1, the middle part of the compressing lever 11 is rotationally connected with the hinge seat 12 through a rotating rod 13, the parts of the compressing lever 11, which are positioned at two sides of the rotating rod 13, are respectively an adjusting part 110 and a compressing part 111, a reset spring 14 is connected between the compressing part 111 and the hinge seat 12, the adjusting part 110 is used for adjusting the rotation of the compressing lever 13, the compressing part 111 is used for setting a blade root compressing block 8 and a blade tip compressing block 9, when the blade root compressing block needs to be compressed, the compressing part 13 can be driven to rotate by lifting the adjusting part 110 so that the compressing part 111 drives the compressing block to compress the blade (for example, a screw in threaded connection at the bottom of the adjusting part is screwed, the tail end of the screw is propped against a fixed block, and thus the adjusting part is far away from the fixed block so that the compressing part is compressed, and the reset spring 14 can play a reset role when the screw is loosened).
Specifically, the compressing part 111 is bifurcated and extends to the blade root and blade tip positioning blocks respectively, the blade root compressing block 8 and the compressing part 111 of the compressing lever 11 are integrally arranged, the blade root compressing block 8 is arranged corresponding to the blade root positioning block 6, and the contact surface of the blade root compressing block 8 and the blade is a profiling surface. Referring to fig. 4 and 6, the tip compressing block 9 and the tip positioning block 7 are correspondingly arranged, the middle of the tip compressing block 9 and the tip positioning block 7 are respectively hollowed out, and the upper end and the lower end of the hollowed-out part are respectively contacted with the blade through profiling surfaces. The blade tip compressing block 9 is connected with the compressing lever 11 through the rotating shaft 91, and referring to fig. 5, the blade tip compressing block 9 extends to the top of the compressing part 111 (i.e. forms a step surface) to form the limiting part 92 and has a certain gap d (the gap width is preferably 0.5-1 mm), so that the blade tip compressing block 9 rotates around the rotating shaft 91 within a limited range, so that the angle of the compressing block is regulated along with the floating of the blade profile when the blade is compressed, the blade is better fitted, and the compressing block has a larger fault tolerance to the blade profile.
The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a finish forge blade mills limit board anchor clamps, its includes the bottom plate, install finish forge blade tip location compression assembly on the bottom plate, its characterized in that: the precision forging blade end positioning and compressing assembly comprises a V-shaped block support, a V-shaped positioning block and a compressing screw, wherein the bottom plate is connected with the V-shaped positioning block through the V-shaped block support, and the compressing screw is used for respectively compressing bosses or shaft handles at two ends of the precision forging blade on the V-shaped positioning block;
the blade root positioning block and the blade tip positioning block respectively press the blade on the blade root positioning block and the blade tip positioning block through profiling surfaces.
2. The precision forging blade milling edge plate clamp as set forth in claim 1, wherein: the V-shaped block support is characterized in that an installation groove is formed in the middle of the V-shaped block support, the V-shaped positioning block can be slidably installed in the installation groove along the direction facing or away from the blade, and the V-shaped block support is also connected with a locking screw which is used for fixing the V-shaped positioning block with the V-shaped block support.
3. The precision forging blade milling edge plate clamp as set forth in claim 2, wherein: the V-shaped positioning block comprises a positioning part and a connecting part, the connecting part stretches into the mounting groove, an adjusting groove is further formed in the middle of the connecting part, and a spring is arranged between the inner wall of the adjusting groove and a lug of the V-shaped block support, which extends into the adjusting groove.
4. A finish forge blade milling edge plate fixture according to claim 3 wherein: the top of the connecting part is provided with an upward inclined adjusting inclined plane, the locking screw stretches into the mounting groove and contacts with the adjusting inclined plane, and the contact surface of the locking screw and the V-shaped positioning block is parallel to the adjusting inclined plane.
5. The precision forging blade milling edge plate clamp as set forth in claim 1, wherein: the precision forging blade profile positioning and compressing assembly further comprises a compressing lever and a hinge seat, the hinge seat is arranged on the bottom plate, the middle part of the compressing lever is rotationally connected with the hinge seat through a rotating rod, the parts of the compressing lever, which are positioned on two sides of the rotating rod, are respectively an adjusting part and a compressing part, the adjusting part is used for adjusting the rotation of the compressing lever, and the compressing part is used for setting the blade root compressing block and the blade tip compressing block.
6. The precision forging blade milling edge plate clamp as set forth in claim 5, wherein: the blade root compacting block and the compacting part of the compacting lever are integrally arranged, the blade root compacting block is arranged corresponding to the blade root positioning block, and the contact surface of the blade root compacting block and the blade is a profiling surface.
7. The precision forging blade milling edge plate clamp as set forth in claim 5, wherein: the blade tip compacting block and the blade tip positioning block are correspondingly arranged, the middle of the blade tip compacting block and the middle of the blade tip positioning block are respectively hollowed out, and the upper end and the lower end of the hollowed-out part are respectively contacted with the blade through profiling surfaces.
8. The precision forging blade milling edge plate clamp as set forth in claim 7, wherein: the blade tip compacting block is connected with the compacting lever through a rotating shaft, extends to the top of the compacting part and has a certain gap.
9. The precision forging blade milling edge plate clamp as set forth in claim 5, wherein: and a reset spring is connected between the pressing part and the hinge seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322118646.7U CN220480895U (en) | 2023-08-08 | 2023-08-08 | Finish forging blade mills limit board anchor clamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322118646.7U CN220480895U (en) | 2023-08-08 | 2023-08-08 | Finish forging blade mills limit board anchor clamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220480895U true CN220480895U (en) | 2024-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322118646.7U Active CN220480895U (en) | 2023-08-08 | 2023-08-08 | Finish forging blade mills limit board anchor clamps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220480895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119347479A (en) * | 2024-11-20 | 2025-01-24 | 中国航发贵州黎阳航空动力有限公司 | A design method for a precision forged rotor blade intake and exhaust milling fixture |
-
2023
- 2023-08-08 CN CN202322118646.7U patent/CN220480895U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119347479A (en) * | 2024-11-20 | 2025-01-24 | 中国航发贵州黎阳航空动力有限公司 | A design method for a precision forged rotor blade intake and exhaust milling fixture |
| CN119347479B (en) * | 2024-11-20 | 2025-09-26 | 中国航发贵州黎阳航空动力有限公司 | A design method for a fixture for precision forging rotor blade intake and exhaust milling |
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