CN218965090U - Clamp for machining basin-to-saw tooth crown of low-pressure turbine working blade - Google Patents
Clamp for machining basin-to-saw tooth crown of low-pressure turbine working blade Download PDFInfo
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- CN218965090U CN218965090U CN202320191835.4U CN202320191835U CN218965090U CN 218965090 U CN218965090 U CN 218965090U CN 202320191835 U CN202320191835 U CN 202320191835U CN 218965090 U CN218965090 U CN 218965090U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model belongs to the field of blade basin-to-sawtooth crown machining clamps, and particularly relates to a clamp for machining a low-pressure turbine working blade basin-to-sawtooth crown, which comprises a blade tenon tooth positioning and clamping mechanism and a blade sawtooth crown positioning and clamping mechanism; the blade tenon tooth positioning and clamping mechanism comprises a cushion block, a compression support, a tooth-shaped positioning block and an overturning elastic chuck; the cushion block and the compression support are arranged on the left side of the bottom plate; the blade sawtooth crown positioning and clamping mechanism comprises a positioning seat, a positioning support block, a support, an oblique auxiliary support and a compacting seat which are all arranged on the right side of the bottom plate and pass through; the fixed inner hexagon socket head cap screw is fixed on the bottom plate; and a process ball is arranged on a bottom plate between the blade tenon tooth positioning and clamping mechanism and the blade sawtooth crown positioning and clamping mechanism and used for checking the size of the clamp. The utility model adds the oblique auxiliary supporting device and ensures the consistency of the clamping process. And a floating supporting device is added, the supporting position is automatically adjusted, and the consistency of the clamping process is ensured.
Description
Technical Field
The utility model relates to the field of blade basin-to-sawtooth crown machining clamps, in particular to a clamp for machining a low-pressure turbine working blade basin-to-sawtooth crown.
Background
At present, the existing low-pressure turbine working blade with a crown is machined by adopting a grinding basin and a hacksaw tooth crown, a clamp positioning point is a positioning point of a position back to a tenon tooth, an exhaust side tenon tooth side surface, a positioning point of a position back to a blade body, a positioning point of an exhaust side of the blade crown, a basin-oriented tenon tooth is adopted for pressing, and a basin-oriented blade body, a tenon tooth air inlet side surface and a blade crown air inlet side surface which are correspondingly corresponding to the positioning point of the position back to the blade body are adopted. In the actual machining process, the contact area of positioning points is small, and the machining size is unstable due to inconsistent pressing force.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to provide a clamp for processing a basin-to-sawtooth crown of a low-pressure turbine working blade, which comprises the following specific scheme:
a clamp for processing a basin-to-sawtooth crown of a low-pressure turbine working blade comprises a stop block, a bottom plate, a cushion block, a positioning support block, a positioning seat, a floating support, a pressing plate, a pressing support, a pressing seat, a support block, a support, a turnover elastic chuck, a process ball, an oblique auxiliary support and a tooth-shaped positioning block;
the blade tenon tooth positioning and clamping mechanism comprises a cushion block, a compression support, a tooth-shaped positioning block and an overturning elastic chuck;
the cushion block and the compression support are arranged on the left side of the bottom plate, and the compression support is arranged in front of the cushion block obliquely;
the blade sawtooth crown positioning and clamping mechanism comprises a positioning seat, a positioning support block, a support, an oblique auxiliary support and a compacting seat which are all arranged on the right side of the bottom plate;
the positioning support block and the positioning seat are respectively fixed on the bottom plate through cylindrical pins and hexagon socket head cap screws, the support and the oblique auxiliary support and the positioning support block are arranged on the same straight line, the positioning seat is arranged at the rear side of the positioning support block, the pressing seat is arranged at the rear side of the oblique auxiliary support, and the pressing seat and the positioning seat are arranged on the same straight line;
and a process ball is arranged on a bottom plate between the blade tenon tooth positioning and clamping mechanism and the blade sawtooth crown positioning and clamping mechanism and used for checking the size of the clamp.
The clamp for processing the basin-shaped sawtooth crown of the low-pressure turbine working blade is characterized in that the two sides of the cushion block are provided with mounting edges, the front side of the cushion block is provided with a protruding block, and the upper end surface of the cushion block is provided with an inclined plane;
screw holes are formed in the mounting edges of the cushion blocks, and the cushion blocks are fixed on the bottom plate through hexagon socket head cap screws;
the tooth-shaped positioning block is in a convex shape, an ear seat is arranged at the top end of the convex at one side, and a tenon tooth positioning latch tooth which protrudes outwards and is consistent with the tooth shape of the tenon tooth is arranged at the other side;
the tooth-shaped positioning block is connected with the cushion block through a cylindrical pin, and is locked on the inclined surface of the cushion block through a hexagon socket head cap screw; and the tenon tooth positioning latch tooth is arranged above the convex block;
the stop block is arranged on one side of the tenon tooth positioning latch tooth and used for positioning the tenon tooth of the blade;
one side of the turnover elastic chuck is provided with a mounting lug, the other side is provided with a tenon tooth pressing latch, and the middle is provided with a screw hole;
the mounting lug is arranged in the lug seat, the pin shaft connects the mounting lug to the lug seat, and the mounting lug can rotate along the pin shaft;
the lower end of the blade tenon tooth is clamped on the tenon tooth positioning latch tooth, one side surface of the blade tenon tooth is propped against the stop block, and after the tenon tooth pressing latch tooth is used for pressing the upper end of the blade tenon tooth, the overturning elastic chuck and the tooth-shaped positioning block are locked through a screw;
and the compression support is provided with a compression screw, and the other side face of the blade tenon tooth is tightly propped and fixed through the compression screw.
The clamp for machining the low-pressure turbine working vane basin to the sawtooth crown is characterized in that the positioning seat is L-shaped, an arc-shaped bayonet is arranged at the upper end of the positioning seat, a mounting hole is formed in one side of the arc-shaped bayonet, and a positioning pin is arranged in the arc-shaped bayonet through the mounting hole and used for positioning the side face of the vane crown;
the upper end of the support is provided with a trapezoid step, the end face of the trapezoid step is provided with a mounting hole, a screw hole is formed in the vertical direction between the front side wall of the support and the mounting hole, and the screw hole is communicated with the mounting hole;
the installation hole is internally provided with a compression spring, the floating support is arranged on the compression spring, and the floating support is limited to move in a fixed direction by installing a hexagon cylinder end set screw in the screw hole;
the oblique auxiliary support is concave, a notch is arranged in the middle of the oblique auxiliary support, screw holes, pin holes and round holes are formed in the front side surface and the rear side surface of the notch, and a through hole for connecting a bottom plate through a screw is formed in the bottom of the notch;
the support block is provided with a pin hole corresponding to the oblique auxiliary support, one side of the support block is provided with an arc-shaped bulge for positioning the side edge of the blade sawtooth crown, and the support block is arranged in a notch of the oblique auxiliary support and is connected with the oblique auxiliary support through a pin shaft; the other side of the supporting block is provided with a screw, and the screw is pressed down to adjust the proper position of the supporting block through the gap between the supporting block and the oblique auxiliary support;
the circular ring is arranged in the circular hole of the oblique auxiliary support and used for limiting the support block;
a groove opening is formed in the middle of the pressing seat, pin holes are formed in two sides of the groove opening, and screw holes are formed in the groove opening;
one end of the pressing plate is provided with a pin hole, the other end of the pressing plate is provided with an arc-shaped pressing head, and the middle of the pressing plate is provided with a screw hole;
the pressing plate is arranged in the groove opening, is connected to the pressing seat through a pin shaft and can rotate along the pin shaft;
the positioning seat upper end is equipped with the arc recess, and arc recess one side is equipped with the installation round hole, and the locating pin passes through the installation round hole setting in the arc recess for She Pianju tooth crown bottom side's location compresses tightly the She Pianju tooth crown that the head corresponds through the arc on the clamp plate, and the location compresses tightly the back and is locking the clamp plate on compressing tightly the seat through the screw.
The clamp for machining the basin-shaped sawtooth crown of the low-pressure turbine working blade is characterized in that the tenon tooth positioning clamping teeth and the tenon tooth pressing position clamping teeth are manufactured according to the tenon tooth molded surface of the blade.
The clamp for machining the low-pressure turbine working blade basin-to-sawtooth crown is characterized in that two floating supports are arranged, the floating supports are in contact with the blade sawtooth crown through compression spring adjusting positions, and the floating supports are locked through hexagon socket head cap screws after being adjusted to proper positions.
The clamp for machining the basin-shaped sawtooth crown of the low-pressure turbine working blade is characterized in that the inclined plane of the tooth-shaped positioning block is determined according to the machining and placing angle of the sawtooth crown, and the angle between the blade tenon tooth and the bottom plate is 16 degrees.
The utility model has the beneficial effects that: the floating support is added, so that the support position can be automatically adjusted, and the phenomenon of unstable processing caused by inconsistent skill levels of operators in the use process is avoided; and an oblique auxiliary supporting device is added, so that the consistency of the clamping process is ensured, and the stability of the machining dimension is improved by colleagues.
Drawings
FIG. 1 is a schematic view of a blade and clamp mounting structure;
FIG. 2 is a top view of the clamp;
FIG. 3 is a side view of the clamp;
FIG. 4 is a schematic view of a tooth-shaped positioning block;
FIG. 5 is a schematic diagram of a flip collet;
FIG. 6 is a schematic view of a positioning seat;
FIG. 7 is a schematic view of a support structure;
FIG. 8 is a schematic view of a diagonal auxiliary support structure;
FIG. 9 is a schematic view of a compression seat;
FIG. 10 is a schematic view of a platen structure;
FIG. 11 is a schematic view of a support block structure;
FIG. 12 is a schematic view of a positioning block structure;
FIG. 13 is a schematic diagram of a pad structure;
fig. 14 is a schematic view of a blade structure.
In the figure: 1. the device comprises a stop block, a bottom plate, a cushion block, a positioning support block, a positioning seat, a floating support, a pressing plate, a pressing support, a pressing seat, a supporting block, a supporting seat, a turnover elastic clamping head, a process ball, a compression spring, a compression screw, a diagonal auxiliary support, a tooth-shaped positioning block, a mounting edge, a protruding block, a lug seat, a tenon tooth positioning latch, a mounting lug, a tenon tooth pressing latch, a tenon tooth pressing latch, a cambered bayonet, a trapezoid step, a cambered protrusion, a circular ring, a groove opening and a cambered pressing head. 31-arc-shaped grooves, 60-blade tenons and 70-She Pianju crowns.
Detailed Description
The utility model will be further described with reference to the accompanying drawings in the present application, but it should not be construed that the scope of the utility model is limited to the embodiments described below. Various substitutions and alterations are made by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.
A clamp for machining a basin-to-sawtooth crown of a low-pressure turbine working blade comprises a stop block 1, a bottom plate 2, a cushion block 3, a positioning support block 4, a positioning seat 5, a floating support 6, a pressing plate 7, a pressing support 8, a pressing seat 9, a support block 10, a support 11, a turnover elastic chuck 12, a process ball 13, an oblique auxiliary support 16 and a tooth-shaped positioning block 17;
the blade tenon tooth positioning and clamping mechanism comprises a cushion block 3, a compression support 8, a tooth-shaped positioning block 17 and a turnover elastic chuck 12;
the cushion block 3 and the compression support 8 are arranged on the left side of the bottom plate 2, and the compression support 8 is arranged in front of the cushion block 3 obliquely;
the blade sawtooth crown positioning and clamping mechanism comprises a positioning seat 5, a positioning support block 4, a support 11, an inclined auxiliary support 16 and a compacting seat 9, which are all arranged on the right side of the bottom plate 2;
the positioning support block 4 and the positioning seat 5 are respectively fixed on the bottom plate 2 through cylindrical pins and hexagon socket head cap screws, the support 11, the oblique auxiliary support 16 and the positioning support block 4 are arranged on the same straight line, the positioning seat 5 is arranged at the rear side of the positioning support block 4, the compression seat 9 is arranged at the rear side of the oblique auxiliary support 16, and the compression seat 9 and the positioning seat 5 are arranged on the same straight line;
and a process ball 13 is arranged on the bottom plate 2 between the blade tenon tooth positioning and clamping mechanism and the blade sawtooth crown positioning and clamping mechanism and used for checking the size of the clamp.
The two sides of the cushion block 3 are provided with mounting edges 18, the front side is provided with a protruding block 19, and the upper end surface of the cushion block 3 is provided with a bevel;
screw holes are formed in the mounting edges 18 of the cushion blocks 3, and the cushion blocks 3 are fixed on the bottom plate 2 through hexagon socket head cap screws;
the tooth-shaped positioning block 17 is in a convex shape, the top end of the convex on one side is provided with an ear seat 20, and the other side is provided with a tenon tooth positioning latch tooth 21 which protrudes outwards and is consistent with the tooth shape of the tenon tooth;
the tooth-shaped positioning block 17 is connected with the cushion block 3 through a cylindrical pin, and the tooth-shaped positioning block 17 is locked on the inclined surface of the cushion block 3 through a hexagon socket head cap screw; and the tenon tooth positioning latch 21 is arranged above the convex block 19;
the stop block 1 is arranged on one side of the tenon tooth positioning latch tooth 21 and is used for positioning the tenon tooth 60 of the blade;
one side of the turnover elastic chuck 12 is provided with a mounting lug 22, the other side is provided with a tenon tooth pressing latch tooth 23, and the middle is provided with a screw hole;
the mounting ear 22 is arranged in the ear seat 20, the pin shaft connects the mounting ear 22 to the ear seat 20, and the mounting ear 22 can rotate along the pin shaft;
the lower end of the blade tenon tooth 60 is clamped on the tenon tooth positioning clamping tooth 21, one side surface of the blade tenon tooth 60 is propped against the stop block 1, and after the tenon tooth pressing clamping tooth 23 presses the upper end of the blade tenon tooth 60, the turnover elastic chuck 12 and the tooth-shaped positioning block 17 are locked through a screw;
the compression support 8 is provided with a compression screw 15, and the other side face of the blade tenon tooth 60 is tightly pressed and fixed through the compression screw 15.
The positioning seat 5 is L-shaped, the upper end of the positioning seat is provided with an arc-shaped bayonet 24, one side of the arc-shaped bayonet 24 is provided with a mounting hole, and a positioning pin is arranged in the arc-shaped bayonet 24 through the mounting hole and used for positioning the side surface of the She Pianju tooth crown;
the upper end of the support 11 is provided with a trapezoid step 25, the end face of the trapezoid step 25 is provided with a mounting hole, a screw hole is formed in the vertical direction between the front side wall of the support 11 and the mounting hole, and the screw hole is communicated with the mounting hole;
the installation hole is internally provided with a compression spring 14, the floating support 6 is arranged on the compression spring 14, and the floating support 6 is limited to move in a fixed direction by installing an inner hexagonal cylinder end set screw in a screw hole;
the oblique auxiliary support 16 is concave, a notch 26 is arranged in the middle of the oblique auxiliary support, screw holes, pin holes and round holes are formed in the front side surface and the rear side surface of the notch 26, and a through hole for connecting a bottom plate through a screw is formed in the bottom of the notch;
the support block 10 is provided with a pin hole corresponding to the oblique auxiliary support, one side of the support block is provided with an arc-shaped bulge 27 for positioning the side edge of the She Pianju tooth crown 70, the support block 10 is arranged in the notch 26 of the oblique auxiliary support 16 and is connected with the oblique auxiliary support 16 through a pin shaft; the other side of the supporting block 10 is provided with a screw, and the screw is pressed down to adjust the proper position of the supporting block 10 through the gap between the supporting block 10 and the oblique auxiliary support 16;
the circular ring 28 is arranged in the circular hole of the inclined auxiliary support 16 and is used for limiting the support block 10;
a groove opening 29 is formed in the middle of the pressing seat 9, pin holes are formed in two sides of the groove opening 29, and screw holes are formed in the groove opening 29;
one end of the pressing plate 7 is provided with a pin hole, the other end is provided with an arc-shaped pressing head 30, and the middle is provided with a screw hole;
the pressing plate 7 is arranged in the groove opening 29, the pressing plate 7 is connected to the pressing seat 9 through a pin shaft, and the pressing plate 7 can rotate along the pin shaft;
the positioning seat 4 upper end is equipped with arc recess 31, and arc recess 31 one side is equipped with the installation round hole, and the locating pin passes through the installation round hole setting in arc recess 31 for She Pianju tooth crown 70 bottom side's location compresses tightly She Pianju tooth crown 70 through the arc on clamp plate 7 and compresses tightly head 30 corresponds, and the back is compressed tightly in the location with clamp plate 7 through the screw locking on compressing tightly seat 9.
The tenon tooth positioning latch 21 and the tenon tooth pressing position latch 23 are manufactured according to the profile of the blade tenon tooth 60.
The number of the floating supports 6 is two, the floating supports 6 are in contact with the She Pianju tooth crowns 70 through the adjustment positions of the compression springs 14, and the floating supports are locked through hexagon socket head cap screws after being adjusted to the proper positions.
The inclined plane of the tooth-shaped positioning block 17 is determined according to the machining and placing angle of the She Pianju tooth crown 70, and the angle between the blade tenon tooth 60 and the bottom plate 2 is 16 degrees.
Claims (6)
1. A fixture for machining a low-pressure turbine working blade basin to a sawtooth crown is characterized in that: the device comprises a stop block, a bottom plate, a cushion block, a positioning support block, a positioning seat, a floating support, a pressing plate, a pressing support, a pressing seat, a support block, a support, a turnover elastic chuck, a process ball, an oblique auxiliary support and a tooth-shaped positioning block;
the blade tenon tooth positioning and clamping mechanism comprises a cushion block, a compression support, a tooth-shaped positioning block and an overturning elastic chuck;
the cushion block and the compression support are arranged on the left side of the bottom plate, and the compression support is arranged in front of the cushion block obliquely;
the blade sawtooth crown positioning and clamping mechanism comprises a positioning seat, a positioning support block, a support, an oblique auxiliary support and a compacting seat which are all arranged on the right side of the bottom plate;
the positioning support block and the positioning seat are respectively fixed on the bottom plate through cylindrical pins and hexagon socket head cap screws, the support and the oblique auxiliary support and the positioning support block are arranged on the same straight line, the positioning seat is arranged at the rear side of the positioning support block, the pressing seat is arranged at the rear side of the oblique auxiliary support, and the pressing seat and the positioning seat are arranged on the same straight line;
and a process ball is arranged on a bottom plate between the blade tenon tooth positioning and clamping mechanism and the blade sawtooth crown positioning and clamping mechanism and used for checking the size of the clamp.
2. The fixture for machining a basin-to-saw tooth crown of a low-pressure turbine working blade according to claim 1, wherein the two sides of the cushion block are provided with mounting edges, the front side is provided with a protruding block, and the upper end surface of the cushion block is provided with a bevel;
screw holes are formed in the mounting edges of the cushion blocks, and the cushion blocks are fixed on the bottom plate through hexagon socket head cap screws;
the tooth-shaped positioning block is in a convex shape, an ear seat is arranged at the top end of the convex at one side, and a tenon tooth positioning latch tooth which protrudes outwards and is consistent with the tooth shape of the tenon tooth is arranged at the other side;
the tooth-shaped positioning block is connected with the cushion block through a cylindrical pin, and is locked on the inclined surface of the cushion block through a hexagon socket head cap screw; and the tenon tooth positioning latch tooth is arranged above the convex block;
the stop block is arranged on one side of the tenon tooth positioning latch tooth and used for positioning the side surface of the tenon tooth of the blade;
one side of the turnover elastic chuck is provided with a mounting lug, the other side is provided with a tenon tooth pressing latch, and the middle is provided with a screw hole;
the mounting lug is arranged in the lug seat, the pin shaft connects the mounting lug to the lug seat, and the mounting lug can rotate along the pin shaft;
the lower end of the blade tenon tooth is clamped on the tenon tooth positioning latch tooth, one side surface of the blade tenon tooth is propped against the stop block, and after the tenon tooth pressing latch tooth is used for pressing the upper end of the blade tenon tooth, the overturning elastic chuck and the tooth-shaped positioning block are locked through a screw;
and the compression support is provided with a compression screw, and the other side face of the blade tenon tooth is tightly propped and fixed through the compression screw.
3. The fixture for machining a low-pressure turbine working vane basin to a sawtooth crown according to claim 1, wherein the positioning seat is L-shaped, an arc-shaped bayonet is arranged at the upper end, a mounting hole is arranged on one side of the arc-shaped bayonet, and a positioning pin is arranged in the arc-shaped bayonet through the mounting hole and used for positioning the side face of the vane crown;
the upper end of the support is provided with a trapezoid step, the end face of the trapezoid step is provided with a mounting hole, a screw hole is formed in the vertical direction between the front side wall of the support and the mounting hole, and the screw hole is communicated with the mounting hole;
the installation hole is internally provided with a compression spring, the floating support is arranged on the compression spring, and the floating support is limited to move in a fixed direction by installing a hexagon cylinder end set screw in the screw hole;
the oblique auxiliary support is concave, a notch is arranged in the middle of the oblique auxiliary support, screw holes, pin holes and round holes are formed in the front side surface and the rear side surface of the notch, and a through hole for connecting a bottom plate through a screw is formed in the bottom of the notch;
the support block is provided with a pin hole corresponding to the oblique auxiliary support, one side of the support block is provided with an arc-shaped bulge for positioning the side edge of the blade sawtooth crown, and the support block is arranged in a notch of the oblique auxiliary support and is connected with the oblique auxiliary support through a pin shaft; the other side of the supporting block is provided with a screw, and the screw is pressed down to adjust the proper position of the supporting block through the gap between the supporting block and the oblique auxiliary support;
the circular ring is arranged in the circular hole of the oblique auxiliary support and used for limiting the support block;
a groove opening is formed in the middle of the pressing seat, pin holes are formed in two sides of the groove opening, and screw holes are formed in the groove opening;
one end of the pressing plate is provided with a pin hole, the other end of the pressing plate is provided with an arc-shaped pressing head, and the middle of the pressing plate is provided with a screw hole;
the pressing plate is arranged in the groove opening, is connected to the pressing seat through a pin shaft and can rotate along the pin shaft;
the positioning seat upper end is equipped with the arc recess, and arc recess one side is equipped with the installation round hole, and the locating pin passes through the installation round hole setting in the arc recess for She Pianju tooth crown bottom side's location compresses tightly the She Pianju tooth crown that the head corresponds through the arc on the clamp plate, and the location compresses tightly the back and is locking the clamp plate on compressing tightly the seat through the screw.
4. The fixture for machining a low-pressure turbine rotor blade basin to a serrated crown of claim 2, wherein the tooth positioning and tooth compressing teeth are made according to a blade tooth profile.
5. The fixture for machining a low-pressure turbine working blade basin to a sawtooth crown according to claim 1, wherein two floating supports are arranged, the floating supports are in contact with the blade sawtooth crown through compression spring adjusting positions, and the floating supports are locked through hexagon socket head cap screws after being adjusted to the proper positions.
6. A fixture for machining a low pressure turbine rotor blade basin to a serrated crown as claimed in claim 2 wherein the bevel of the tooth locating block is determined by the angle at which the serrated crown is machined and placed and the angle of the blade dovetail to the base plate is 16 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320191835.4U CN218965090U (en) | 2023-02-13 | 2023-02-13 | Clamp for machining basin-to-saw tooth crown of low-pressure turbine working blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320191835.4U CN218965090U (en) | 2023-02-13 | 2023-02-13 | Clamp for machining basin-to-saw tooth crown of low-pressure turbine working blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218965090U true CN218965090U (en) | 2023-05-05 |
Family
ID=86166410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320191835.4U Active CN218965090U (en) | 2023-02-13 | 2023-02-13 | Clamp for machining basin-to-saw tooth crown of low-pressure turbine working blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218965090U (en) |
-
2023
- 2023-02-13 CN CN202320191835.4U patent/CN218965090U/en active Active
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