CN213003886U - Rotor blade mills apex anchor clamps - Google Patents
Rotor blade mills apex anchor clamps Download PDFInfo
- Publication number
- CN213003886U CN213003886U CN202021578314.7U CN202021578314U CN213003886U CN 213003886 U CN213003886 U CN 213003886U CN 202021578314 U CN202021578314 U CN 202021578314U CN 213003886 U CN213003886 U CN 213003886U
- Authority
- CN
- China
- Prior art keywords
- blade
- block
- tip
- blade tip
- positioning
- 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
- Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
Abstract
The utility model provides a rotor blade mills apex anchor clamps, it can realize the high accuracy location to the blade, can avoid weighing wounded the profile to blade profile self-adaptation location and protection effectively when milling processing apex, and anchor clamps still have the function of the processing of apex high efficiency, high accuracy, low disability rate simultaneously. The blade tenon clamping device comprises a bottom plate, a tenon positioning component and a blade tip molded surface pressing component, wherein the tenon positioning component and the blade tip molded surface pressing component are installed on the bottom plate; the blade tip molded surface pressing assembly comprises a blade tip pressing block and a blade tip supporting block, the blade tip pressing block is pressed on the blade through a pressing mechanism, the blade tip supporting block is connected with a supporting mechanism, and the blade tip supporting block is jacked through the supporting mechanism to be in contact with the blade.
Description
Technical Field
The utility model relates to a blade processing technology field specifically is a rotor blade mills apex anchor clamps.
Background
Generally, a linear cutting and combined grinding process is adopted for machining blade tips of precision forged blades of aero-engines and gas turbines, for rotor blades, linear cutting and cutting are achieved through tenon positioning, a linear cutting machine is adopted to achieve cutting machining of the blade tips, and then the blades are installed on fixed disc grooves and then ground. The wire cutting and combined grinding process is relatively complex, the repeated clamping frequency is more, the product precision can be seriously influenced and even the product can be scrapped if the clamping is unstable, and the blades are easy to deform in the machining process and are easy to scrap in batches for relatively thin blades.
SUMMERY OF THE UTILITY MODEL
To the unstable and easy problem that warp of blade of traditional anchor clamps clamping blade, the utility model provides a rotor blade mills apex anchor clamps, it can play good fixed effect of compressing tightly and can reduce or even eliminate the possibility of crushing the blade to the blade.
The technical scheme is as follows: the utility model provides a rotor blade mills apex anchor clamps, its includes the bottom plate, installs tenon locating component and apex profile on the bottom plate and compresses tightly subassembly, its characterized in that: the tenon positioning component comprises a blade root positioning block, a mortise for accommodating a blade tenon is formed in the blade root positioning block, a blade root end face positioning block is connected to the bottom of the mortise, the mortise is communicated with a slit in the middle of the blade root positioning block, the blade root positioning block is divided into an upper positioning clamping part and a lower positioning clamping part through the slit, a through groove is further formed in one side, away from the mortise, of the upper positioning clamping part, the upper positioning clamping part and the lower positioning clamping part are connected with clamping mechanisms, and the upper positioning clamping part and/or the lower positioning clamping part elastically deform and move oppositely through the clamping mechanisms to clamp the blade tenon;
the tip profile pressing assembly comprises a tip pressing block and a tip supporting block, the contact surface of the tip pressing block and the blade is a profiling surface corresponding to the shape of the contact surface, the contact surface of the tip supporting block and the blade is a profiling surface corresponding to the shape of the contact surface, the tip pressing block is controlled by a pressing mechanism to press the blade downwards, the tip pressing block comprises an air inlet side pressing block, an air outlet side pressing block and a connecting block used for connecting the air inlet side pressing block and the air outlet side pressing block, the connecting block is rotatably connected with the pressing mechanism, the tip supporting block is connected with a supporting mechanism, and the tip supporting block is lifted by the supporting mechanism to be in contact with the blade.
It is further characterized in that:
the clamping mechanism comprises a handle, and the handle penetrates through the upper positioning and clamping part and the slit to extend to the lower positioning and clamping part and is in threaded connection with the upper positioning and clamping part; the blade root end surface positioning block is connected with the upper positioning and clamping part or the lower positioning and clamping part;
the tenon positioning component also comprises a support connected with the bottom plate, and a fixing block is arranged on the support and used for fixing the blade root positioning block;
a downward through notch is arranged between the air inlet side compression block and the air exhaust side compression block;
the pressing mechanism comprises a pressing oil cylinder and a transmission rod, the transmission rod is rotatably connected with the blade tip pressing block, the blade tip pressing block extends towards the direction of the transmission rod to form a limiting bulge, and a gap is reserved between the limiting bulge and the end part of the transmission rod and used for preventing the blade tip pressing block from rotating excessively;
the supporting mechanism comprises a guide seat, a T-shaped groove is formed in the guide seat, and the blade tip supporting block is connected with the guide seat through the T-shaped groove so as to move up and down;
a limiting hole is further formed in the middle of the blade tip supporting block, and a limiting rod connected with the guide seat is located in the limiting hole and used for limiting the blade tip supporting block;
the supporting mechanism comprises a supporting oil cylinder, an air inlet side supporting block and an air exhaust side supporting block which are connected with the supporting oil cylinder, and the supporting oil cylinder is an elastic supporting oil cylinder;
when the clamping fixture is used for clamping the planar blade tip end surface, an included angle is reserved between the plane of the bottom surface of the bottom plate and the plane of the top surface of the bottom plate, and the included angle is used for ensuring that the plane of the blade tip end surface is on a vertical plane after the blade is clamped; when the clamping fixture is used for clamping the rotating curved surface type blade tip end surface, an included angle is reserved between the plane of the bottom surface of the bottom plate and the plane of the top surface of the bottom plate, and the included angle is used for ensuring that the normal direction of the blade tip end surface points to a first quadrant after the blade is clamped;
the cross-sectional area a of the portion between the through groove and the slit is calculated as follows.
The utility model has the advantages that: the tenon positioning component can realize the positioning of the tenon of the blade after the tenon groove and the blade root end face positioning block are arranged on the whole blade root positioning block, when the tenon is required to be pressed, the tenon is clamped by the elastic deformation and the opposite movement of the upper positioning clamping part and/or the lower positioning clamping part due to the existence of the thin seam through the clamping mechanism, so that the favorable fixing and pressing effect on the blade root can be realized, and the clamping and the use are convenient; the blade tip profile pressing component supports and presses the blade tip through the blade tip pressing block and the blade tip supporting block, the blade tip pressing component and the blade contact surface are both profile surfaces, so that the blade profile can be effectively pressed, and meanwhile, the blade profile can be prevented from being crushed as much as possible.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
fig. 2 is another view structure diagram of the present invention;
FIG. 3 is a schematic view of the tenon positioning component;
FIG. 4 is a schematic view of a view from the back of the tenon positioning component;
FIG. 5 is a schematic view of the front view of the blade tip profile compression assembly;
FIG. 6 is a schematic view of a back view of the blade tip profile compression assembly;
FIG. 7 is a schematic view of a back structure of a tip hold down.
Detailed Description
As shown in fig. 1 and 2, the rotor blade tip milling fixture includes a base plate 1, a tenon positioning component 2 and a tip profile pressing component 3 mounted on the base plate 1, and referring to fig. 3 and 4, the tenon positioning component 2 includes a blade root positioning block 21, a mortise 22 for accommodating a blade tenon is formed in the blade root positioning block 21, a blade root end surface positioning block 23 is connected to the bottom of the mortise 22, the mortise 22 is communicated with a slit 24 located in the middle of the blade root positioning block 21, the blade root positioning block 21 is divided into an upper positioning clamping portion 211 and a lower positioning clamping portion 212 through the slit 24, the upper positioning clamping portion 211 and the lower positioning clamping portion 212 are connected to a clamping mechanism 25, and the upper positioning clamping portion 211 and/or the lower positioning clamping portion 212 are elastically deformed and move in opposite directions through the clamping mechanism 25 to clamp the blade tenon.
Specifically, the blade root positioning block 21 is made of high-carbon alloy steel CrWMn, and the blade root end face positioning block 23 is made of high-carbon alloy steel CrWMn, so that the blade root positioning block has good wear resistance; the thin seam 24 is positioned on the symmetrical plane of the two working faces of the tenon, the length of the thin seam accounts for 3/4 of the length of the blade root positioning block, so that the thin seam is convenient to compress, meanwhile, a square through groove 26 is further formed in one side, away from the mortise, of the upper positioning clamping part 211, a certain distance is reserved between the edge of the square through groove 26 and the thin seam 24 and the built-in threads, and the square through groove 26 is designed to reduce the material strength of the position, so that the elastic deformation is easy to generate; the clamping mechanism 25 comprises a handle 251, the handle 251 penetrates through the upper positioning and clamping part 211, the slit 24 extends to the lower positioning and clamping part 212 and is in threaded connection with the upper positioning and clamping part 211, the handle 251 can be in rotary connection with the lower positioning and clamping part 212 (such as through a bearing) to form a structure similar to a screw pair, the clamping part, particularly the upper positioning and clamping part 211 (particularly, the part A in the figure 1), can be elastically deformed through rotating the handle 251 to clamp the blade tenon, meanwhile, self-locking can be achieved due to threaded connection, and meanwhile, the blade root end face positioning block 23 is connected with the upper positioning and clamping part 211 or the lower positioning and clamping part 212, and the phenomenon that the blade root end face positioning block 23 cannot move towards each other due to the. The cross-sectional area a of the portion between the square through groove 26 and the slit 24 (at a in fig. 1) can be calculated as follows: the torque value at the fixed handle thread T = Fd, where F is the pressure exerted by the human hand; d: distance between the force application point and the thread axis; screw thread packing force FPress and press= k pi T/l, where k: the torque to pressing force conversion factor, which can be approximated here1; l: pitch of the thread; the cross-sectional area of the part between the blade root positioning through groove and the thin slit is A = FPress and pressL/(E δ), wherein L: the center of the square groove is away from the thread of the fixed handle; e: the elastic modulus of the blade root positioning block; δ: elastic deformation of the slot of the blade root positioning block; the elastic deformation delta of the slot of the blade root positioning block refers to the elastic deformation of the blade root positioning block when the tenon is pressed, and is selected according to the width of the slot, for example, the width of the slot is 0.4mm, and the value delta can be a value which is slightly smaller than the width of the slot, for example, 0.2mm-0.3 mm.
The tenon positioning component 2 further comprises a support 27 in screw connection with the bottom plate 1, a fixing block 28 is arranged on the support 27 and used for being in screw connection with the blade root positioning block 21 to fix the blade root positioning block 21, the fixing block 28 is located in the tenon feeding and discharging direction and the blade axial direction, and the back direction in the tenon is directly connected onto the support 27 through screws to achieve the fixation of the blade root positioning block 21 in the three freedom directions.
In addition, the end face of the blade root positioning block 1 close to the bottom face of the blade flange plate is designed to be a profiling face, when a blade tenon is pressed, the blade has a motion trend moving towards the blade root direction along the axial direction due to the inclined face angle of the working face, the profiling end face of the blade root positioning block is in contact with the bottom face of the blade flange plate at the moment and is limited, and the blade is effectively fixed.
Referring to fig. 2, 5 and 6, the tip profile pressing assembly 3 includes a tip pressing block 31 and a tip supporting block 32, a contact surface between the tip pressing block 31 and the blade is a high-precision contour surface corresponding to a contact surface shape, a contact surface between the tip supporting block 32 and the blade is a high-precision contour surface corresponding to a contact surface shape, the tip pressing block 31 is controlled by a pressing mechanism 33 to press down on the blade, the tip pressing block 31 includes a suction side pressing block 311, an exhaust side pressing block 312 and a connecting block 313 for connecting the suction side pressing block 311 and the exhaust side pressing block 312, the connecting block 313 is rotatably connected to the pressing mechanism 33, the pressing mechanism 33 includes a pressing cylinder 331 and a driving rod 332, the driving rod 332 is rotatably connected to the tip pressing block 31 by a pin, the driving rod 332 forms a lever structure through a fulcrum, the tip pressing block 31 and the cylinder are respectively located at two ends of the lever structure, one end of the transmission rod 332 is controlled to ascend through the oil cylinder to enable the blade tip pressing block 31 to press downwards; the tip support block 32 is connected to a support mechanism 34, and the tip support block 32 is lifted up by the support mechanism 34 to contact the blade.
Specifically, the compressing blocks and the supporting blocks extend outwards for 0.2-1 mm at the edges of the air inlet and outlet edges to adapt to blades with different chord lengths, so that blade profiles with different chord lengths can be covered by the profiling surfaces of the compressing blocks, and the profiles are prevented from being crushed due to insufficient covering; a notch 314 which is penetrated downwards is arranged between the air inlet side compression block 311 and the air exhaust side compression block 312 so as to ensure that the compression blocks are in more effective contact with the molded surface and prevent the molded surface of the blade from being compressed and deformed; meanwhile, as shown in fig. 1, the tip pressing block 31 is designed to be bent, and the lower end surface of the tip pressing block protrudes outwards by 2-3 mm compared with the upper end surface of the tip pressing block, so that a space without entity interference above the tip end surface of the blade is enlarged, and various types of cutters, especially variable-diameter cutters, are convenient to use; a countersunk head screw clearance hole is formed in one side, close to the blade tip end face, of the blade tip pressing block 31, a hinge pin for rotationally connecting with the transmission rod 332 is arranged in the countersunk head screw clearance hole, the head of the hinge pin is not obviously higher than the end face of the blade tip pressing block 31, and the available space above the blade tip end face is also enlarged; referring to fig. 7, the tip pressing block 31 extends 1mm toward the transmission rod 332 to form a limiting protrusion 315, and a gap is left between the limiting protrusion 315 and the end of the transmission rod 332 to prevent the tip pressing block from rotating excessively.
The supporting mechanism 34 comprises an L-shaped guide seat 341 which can protect and limit the supporting block, a T-shaped groove is formed in the guide seat 341, and the blade tip supporting block 32 is connected with the guide seat 341 through the T-shaped groove, so that the supporting block can only move with one dimension degree of freedom in the up-down direction; a limiting hole 321 is further formed in the middle of the blade tip supporting block 32, and a limiting rod 322 connected with the guide seat 341 is located in the limiting hole 321 and used for limiting the blade tip supporting block 32, so that the supporting block is prevented from falling off and losing due to the fact that the supporting block does not move up and down infinitely; the supporting mechanism 34 includes a supporting cylinder 342, and an air inlet side supporting block 343 and an air outlet side supporting block 344 connected to the supporting cylinder 342, the supporting cylinder 342 is an elastic supporting cylinder, the elastic supporting cylinder drives the supporting block to elastically and adaptively move when the blade is clamped, the elastic function is locked after hydraulic pressure is applied, the supporting block is fixed, and the blade tip is pressed by the supporting block in an opposite direction.
In addition, a detection ball 4 is fixed on the bottom plate and used for detecting the spatial position sizes of various high-precision components such as a blade root positioning block, a blade tip pressing block, an air inlet and exhaust edge blade tip supporting block and the like; when the clamping fixture is used for clamping the planar blade tip end surface, an included angle is reserved between the plane of the bottom surface of the bottom plate 1 and the plane of the top surface of the bottom plate, and the included angle is used for ensuring that the plane of the blade tip end surface is on a vertical plane after the blade is clamped; when the cutter is used for clamping the rotating curved surface type blade tip end face, an included angle is reserved between the plane where the bottom surface of the bottom plate is located and the plane where the top surface of the bottom plate is located, the normal direction of the blade tip end face points to the first quadrant after the blade is clamped, and the side edge processing of the triaxial standard end milling cutter of the blade tip can be realized through the design.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a rotor blade mills apex anchor clamps, its includes the bottom plate, installs tenon locating component and apex profile on the bottom plate and compresses tightly subassembly, its characterized in that: the tenon positioning component comprises a blade root positioning block, a mortise for accommodating a blade tenon is formed in the blade root positioning block, a blade root end face positioning block is connected to the bottom of the mortise, the mortise is communicated with a slit in the middle of the blade root positioning block, the blade root positioning block is divided into an upper positioning clamping part and a lower positioning clamping part through the slit, a through groove is further formed in one side, away from the mortise, of the upper positioning clamping part, the upper positioning clamping part and the lower positioning clamping part are connected with clamping mechanisms, and the upper positioning clamping part and/or the lower positioning clamping part elastically deform and move oppositely through the clamping mechanisms to clamp the blade tenon;
the tip profile pressing assembly comprises a tip pressing block and a tip supporting block, the contact surface of the tip pressing block and the blade is a profiling surface corresponding to the contact surface, the contact surface of the tip supporting block and the blade is a profiling surface corresponding to the contact surface, the tip pressing block is pressed on the blade through a pressing mechanism, the tip pressing block comprises an air inlet side pressing block, an air outlet side pressing block and a connecting block used for connecting the air inlet side pressing block and the air outlet side pressing block, the connecting block is rotatably connected with the pressing mechanism, the tip supporting block is connected with a supporting mechanism, and the tip supporting block is lifted by the supporting mechanism to be in contact with the blade.
2. The rotor blade tip milling fixture as recited in claim 1, wherein: the clamping mechanism comprises a handle, and the handle penetrates through the upper positioning and clamping part and the slit to extend to the lower positioning and clamping part and is in threaded connection with the upper positioning and clamping part; the blade root end face positioning block is connected with the upper positioning and clamping part or the lower positioning and clamping part.
3. The rotor blade tip milling fixture as recited in claim 1, wherein: the tenon positioning component further comprises a support connected with the bottom plate, and a fixing block is arranged on the support and used for fixing the blade root positioning block.
4. The rotor blade tip milling fixture as recited in claim 1, wherein: and a notch which is communicated downwards is arranged between the air inlet side compression block and the air exhaust side compression block.
5. The rotor blade tip milling fixture as recited in claim 1, wherein: the pressing mechanism comprises a pressing oil cylinder and a transmission rod, the transmission rod is rotatably connected with the blade tip pressing block, the blade tip pressing block extends towards the direction of the transmission rod to form a limiting bulge, and a gap is reserved between the limiting bulge and the end part of the transmission rod and used for preventing the blade tip pressing block from excessively rotating.
6. The rotor blade tip milling fixture as recited in claim 1, wherein: the supporting mechanism comprises a guide seat, a T-shaped groove is formed in the guide seat, and the blade tip supporting block is connected with the guide seat through the T-shaped groove, so that the blade tip supporting block moves up and down.
7. The rotor blade tip milling fixture as recited in claim 6, wherein: and a limiting hole is further formed in the middle of the blade tip supporting block, and a limiting rod connected with the guide seat is positioned in the limiting hole and used for limiting the blade tip supporting block.
8. The rotor blade milling tip fixture as recited in claim 1, 6 or 7, wherein: the supporting mechanism comprises a supporting oil cylinder, an air inlet side supporting block and an air exhaust side supporting block, wherein the air inlet side supporting block and the air exhaust side supporting block are connected with the supporting oil cylinder, and the supporting oil cylinder is an elastic supporting oil cylinder.
9. The rotor blade tip milling fixture as recited in claim 1, wherein: when the clamping fixture is used for clamping the planar blade tip end surface, an included angle is reserved between the plane of the bottom surface of the bottom plate and the plane of the top surface of the bottom plate, and the included angle is used for ensuring that the plane of the blade tip end surface is on a vertical plane after the blade is clamped; when the clamping device is used for clamping the rotating curved surface type blade tip end face, an included angle is reserved between the plane where the bottom surface of the bottom plate is located and the plane where the top surface of the bottom plate is located, and the blade tip end face is enabled to be pointed to the first quadrant in the normal direction after the blade is clamped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021578314.7U CN213003886U (en) | 2020-08-03 | 2020-08-03 | Rotor blade mills apex anchor clamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021578314.7U CN213003886U (en) | 2020-08-03 | 2020-08-03 | Rotor blade mills apex anchor clamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213003886U true CN213003886U (en) | 2021-04-20 |
Family
ID=75462255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021578314.7U Active CN213003886U (en) | 2020-08-03 | 2020-08-03 | Rotor blade mills apex anchor clamps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213003886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857560A (en) * | 2021-11-09 | 2021-12-31 | 浙江畅尔智能装备股份有限公司 | Broaching machining process of blade tenon |
-
2020
- 2020-08-03 CN CN202021578314.7U patent/CN213003886U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857560A (en) * | 2021-11-09 | 2021-12-31 | 浙江畅尔智能装备股份有限公司 | Broaching machining process of blade tenon |
| CN113857560B (en) * | 2021-11-09 | 2023-11-28 | 浙江畅尔智能装备股份有限公司 | Broaching processing technology for blade tenon |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213003886U (en) | Rotor blade mills apex anchor clamps | |
| CN213053719U (en) | Double-floating device for machining blade tips of blades of aero-engine compressor | |
| CN110216508B (en) | Auxiliary supporting and clamping linkage device | |
| CN102975050A (en) | Rotary mill clamp structure of blade with tenon tooth root | |
| CN106624725B (en) | Pressing mechanism | |
| CN111843557A (en) | Stator blade following clamp and rapid clamping method using same | |
| CN212653086U (en) | Compressor scroll machining device | |
| CN213703114U (en) | Adjustable clamp for shaft workpieces | |
| CN201306261Y (en) | Cylinder seat of fully enclosed refrigeration compressor capable of improving machining accuracy | |
| CN210549759U (en) | Auxiliary support and clamping linkage | |
| CN109663937B (en) | Inner hole end face groove processing cutter | |
| CN113894658A (en) | Strong grinding tool for tenon teeth of rotor blade of circular-arc-tooth-type gas compressor | |
| CN112404574A (en) | Gas turbine rim plate is narrow groove broach for broaching | |
| CN215846175U (en) | Linear cutting clamp for blade | |
| CN208357882U (en) | A kind of cutter milling face for processing mould for automobile lock hook | |
| CN221209892U (en) | Thin-wall disc processing and positioning device | |
| CN2865962Y (en) | Tooth part alloy for double-metal bandsaw bands and circular saw | |
| CN113696102B (en) | Cutter bar clamping method | |
| CN220480895U (en) | Finish forging blade mills limit board anchor clamps | |
| CN218693968U (en) | Adjustable high-utilization-rate boring cutter head | |
| CN214723403U (en) | Special clamp for grinding inner hole in connecting rod production | |
| CN211527289U (en) | Adjustable rod piece testing fixture | |
| CN220348101U (en) | Oilstone clamping mechanism of super-fine head of super-fine machine | |
| CN215880157U (en) | Tool bit mechanism of electric file | |
| CN110842774B (en) | Self-adaptive grinding clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |