CN113458823A - Adjustable blade self-adaptation angle accurate positioning clamping device - Google Patents
Adjustable blade self-adaptation angle accurate positioning clamping device Download PDFInfo
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- CN113458823A CN113458823A CN202110789354.9A CN202110789354A CN113458823A CN 113458823 A CN113458823 A CN 113458823A CN 202110789354 A CN202110789354 A CN 202110789354A CN 113458823 A CN113458823 A CN 113458823A
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- positioning block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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Abstract
The invention discloses an adjustable blade self-adaptive angle accurate positioning and clamping device which comprises a puller bolt (1), a clamp body (2), a support (3), a small end positioning block (7), a large end positioning block (8) and a director (11); the puller bolt (1) is in interference fit through a positioning pin and is fixed at the lower left of the clamp body (2) by a compression screw; the upper end of the puller bolt (1) is connected with a bracket (3); the small end positioning block (7) is arranged at the upper end of the bracket (3); the large-end positioning block (8) is arranged at the left upper part of the clamp body (2); the orientator (11) is arranged at the upper right part of the clamp body (2), the orientation chuck (10) horizontally moves and circumferentially rotates under the action of the spring (12), and the positions of the blades are automatically determined by matching with the small end positioning block (7) and the large end positioning block (8). The positioning chuck (10) of the device adopts a symmetrical V-shaped structure, can be self-adaptive to the thickness change of the profile of the blade and the deformation of the profile of the blade, and can realize accurate positioning through the orientator.
Description
Technical Field
The invention relates to the technical field of clamping and positioning, in particular to an accurate positioning and clamping device capable of adjusting a blade self-adaptive angle.
Background
Aviation blades are a very important class of parts in aircraft engine parts. The shape of the blade is often a complex irregular curved surface, the precision requirement is high, so the clamping and the measurement of the blade are required to be high, the blade is measured by a common three-coordinate measuring machine at present, and the aviation blade is placed on a measuring platform of the three-coordinate measuring machine. However, the three-coordinate measuring machine has strict requirements on the detection environment, needs a professional to operate, and has low detection efficiency and high detection cost.
The utility model discloses a vertical anchor clamps to aviation blade of centre gripping has been proposed in utility model patent application with application number CN201920421243.0, a serial communication port, including the support of vertical setting found the piece the right side of supporting upright piece is by last horizontal pole, middle horizontal pole and the sheer pole that has parallel to the interval setting in proper order down, the equal level setting of horizontal pole, middle horizontal pole and sheer pole. Sliding blocks are arranged at the outer sides of the cross rods and close to the right ends of the upper cross rods and the lower cross rods, and the sliding blocks can slide in a left-right reciprocating mode along the corresponding upper cross rods and the corresponding lower cross rods; the front end of the sliding block forms a V-shaped groove with an outward opening, two arms of the V-shaped groove are arranged on the left and right, and the inner sides of the two arms of each V-shaped groove are used for supporting points of the corresponding part of the aerospace blade; and a positioning device is arranged on the front side wall of the right front end of the middle cross rod and is used for positioning a supporting point at a corresponding position of the rear wall surface of the aerospace blade and clamping and fixing the to-be-detected blade. By using the clamp, the clamping stability is good, the detection is convenient, and the requirement on operators is reduced. However, although the clamp can improve the clamping stability, the design is complex and the clamp is not flexible and light.
In the field of aircraft engines, blade-like parts are key and important parts of aircraft engines. The aeroengine blade has the characteristics of complex profile, high requirements on shape precision and position precision, and the manufacturing precision directly influences the overall performance of the aeroengine. In the machining process, due to the factors of complex blade profile, easy deformation of parts and the like, the clamping and positioning of the blade profile to process other parts become very difficult. In a general machining method, a part is clamped by a vice, a chuck, or the like, and each positioning reference of the part is aligned by a dial gauge and then machined. The single piece processing preparation time of the processing method is too long, so that the production efficiency is not high, the problems of product shaking, cutter shaking and the like are easy to occur in the processing due to the fact that the clamping position is not firm, the size and form and position tolerance precision of the processed part is not high, the quality is unstable, and unqualified products are easy to generate.
Disclosure of Invention
The invention mainly aims to provide an adjustable blade self-adaptive angle accurate positioning and clamping device, and aims to solve the technical problem that in the prior art, due to the fact that the blade surface is complex, parts are easy to deform and the like, other parts are difficult to machine through clamping and positioning of the blade surface.
In order to achieve the purpose, the invention provides an accurate positioning and clamping device capable of adjusting the self-adaptive angle of a blade, which comprises a puller bolt, a clamp body, a bracket, a small end positioning block, a large end positioning block and a director; the jacking bolt is in interference fit through the positioning pin and is fixed at the left lower part of the clamp body by a compression screw; the upper end of the jacking bolt is connected with a bracket, and the bracket is fixedly arranged on the fixture body; the small end positioning block is arranged at the upper end of the bracket and is used for connecting and fixing one end of the blade; the large-end positioning block is arranged above the left side of the fixture body and used for connecting and fixing the top angle of the upper end of the blade; the orientator is arranged at the upper right of the clamp body and connected with the exhaust edge of the blade, a spring is arranged in the orientator, an orientation chuck is connected to the orientator, the orientation chuck performs horizontal movement and circumferential rotation under the action of the spring, and the small end positioning block and the large end positioning block are matched to automatically determine the position of the blade through a three-point positioning principle.
Preferably, the orientator also includes the apron that sets up in the spring right-hand member and connects the nut on the orientator right side.
Preferably, the locating clip 10 is able to automatically adapt to changes in the shape and size of the profile of the blade.
Preferably, the large-end positioning block, the orientator, the small-end positioning block and the fixture body are in interference fit through positioning pins and are fixed by compression screws.
Preferably, the large-end positioning block is fixed on the clamp body through an inner hexagonal screw and a cylindrical pin.
Preferably, the bracket is fixedly mounted on the clamp body through a cylindrical pin and an internal hexagonal screw.
Preferably, the positioning chuck adopts a symmetrical V-shaped structure.
Preferably, the small end positioning block is provided with a small end pressing block, the small end positioning block is connected with the vertex angle of the lower end of the blade, and one end of the blade is fixed on the small end positioning block through the small end pressing block.
Preferably, the big end positioning block is provided with a big end pressing block, the big end positioning block is connected with the top angle of the upper end of the blade, and the top angle of the upper end of the blade is fixed on the big end positioning block through the big end pressing block.
The invention has the following advantages:
1. compared with the prior methods of clamping by using a vice, a chuck and the like, processing after aligning each positioning reference of parts by using a dial indicator and the like, the method adopts a positioning chuck with a blade profile and a spring-guided director for the first time, and is matched with a pressing block with a soft claw function to press high-precision cylindrical surfaces at two ends of a blade so as to realize quick and accurate positioning, provide reliable pressing force and ensure that the problems of product shaking, knife shaking and the like are not generated in the processing;
2. the positioning chuck of the device adopts a symmetrical V-shaped structure, can be self-adaptive to the conditions of thickness change of the blade profile, blade profile deformation and the like, can realize accurate positioning through the orientator, and can be applied to the processing of similar multi-model products.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic view of the construction of the orienter;
FIG. 4 is a schematic view of the structure of the directional chuck;
FIG. 5 is a top view of FIG. 1;
FIG. 6 is a schematic diagram of the framework of the present invention;
FIG. 7 is a schematic structural view of a cylindrical pin;
FIG. 8 is a three-dimensional schematic view of the overall structure of the present invention;
the reference numbers illustrate: 1-a puller bolt, 2-a clamp body, 3-a bracket, 4-a cylindrical pin, 5-an internal hexagonal screw, 6-a small end pressing block, 7-a small end positioning block, 8-a large end positioning block, 9-a large end pressing block, 10-an orientation chuck, 11-an orientation device, 12-a spring, 13-a cover plate and 14-a nut;
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical scheme is provided for solving the technical problem that in the prior art, due to the fact that the profile of the blade is complex, parts are easy to deform and the like, machining of other parts by clamping and positioning the profile of the blade is very difficult.
For ease of understanding, the following examples are specifically set forth:
example 1:
in order to realize the positioning and clamping of the fan blades of the aircraft engine, the following embodiments are provided:
as shown in fig. 1, fig. 2, fig. 3 and fig. 8, in the present embodiment, an adaptive angle accurate positioning and clamping device for an adjustable fan blade is provided, which includes a jacking bolt 1, a clamp body 2, a bracket 3, a small end positioning block 7, a large end positioning block 8 and an orientator 11; the puller bolt 1 is in interference fit through a positioning pin and is fixed at the lower left of the clamp body 2 by a compression screw; the upper end of the puller bolt 1 is connected with a bracket 3, and the bracket 3 is fixedly arranged on the fixture body 2; the small end positioning block 7 is arranged at the upper end of the bracket 3 and is used for connecting and fixing one end of the fan blade; the large-end positioning block 8 is arranged above the left side of the clamp body 2 and used for connecting and fixing the top angle of the upper end of the fan blade; the orientator 11 is arranged at the upper right of the clamp body 2 and connected with the exhaust edge of the fan blade, a spring 12 is arranged in the orientator 11, an orientation chuck 10 is connected to the orientator 11, the orientation chuck 10 moves horizontally and rotates circumferentially under the action of the spring 12, and the small end positioning block 7 and the large end positioning block 8 are matched to automatically determine the position of the fan blade through a three-point positioning principle.
Specifically, fig. 8 is a schematic three-dimensional structure diagram of the precise positioning and clamping device for the adaptive angle of the adjustable fan blade provided in this embodiment, and it can be seen from the diagram that the fan blade is fixed and clamped on the positioning and clamping device through the small end positioning block 7, the large end positioning block 8 and the orienter 11, wherein the orienter 11 is connected and fixes the fan blade through the orienting chuck 10, and the orienting chuck 10 can automatically adapt to the change of the shape and size of the profile of the fan blade.
In the present embodiment, the orientator 11 further comprises a cover plate 13 arranged at the right end of the spring 12 and a nut 14 connected to the right side of the orientator 11, as shown in fig. 3.
In this embodiment, the locating clip 10 is able to automatically adapt to changes in the shape and size of the fan blade profile.
In this embodiment, the large end positioning block 8, the orientator 11, the small end positioning block 7 and the fixture body 2 are all fixed by interference fit of positioning pins and compression screws.
In the embodiment, the large end positioning block 8 is fixed on the clamp body 2 through an internal hexagonal screw 5 and a cylindrical pin 4.
In the present embodiment, the bracket 3 is fixedly mounted on the clamp body 2 by a cylindrical pin 4 and an internal hexagonal screw 5.
In this embodiment, the positioning clamp 10 is of a symmetrical V-shaped structure.
In this embodiment, the small end positioning block 7 is provided with a small end pressing block 6, the small end positioning block 7 is connected with the vertex angle of the lower end of the fan blade, and one end of the fan blade is fixed on the small end positioning block 7 through the small end pressing block 6.
In this embodiment, a large-end pressing block 9 is arranged on the large-end positioning block 8, the large-end positioning block 8 is connected with the top corner of the upper end of the fan blade, and the top corner of the upper end of the fan blade is fixed on the large-end positioning block 8 through the large-end pressing block 9.
It is added that the working principle of the invention is as follows: the orientation chuck automatically determines the correct position of the fan blade by means of horizontal movement and circumferential rotation under the action of a spring in the orientator according to the shape of the fan blade and matching with the small end positioning block and the large end positioning block through a three-point positioning principle.
The working process is as follows: the two cylinders of the fan blade are placed in the positioning blocks at the two ends, the compression screws are manually screwed down to enable the compression blocks to lean against the cylinders of the fan blade, and the fan blade can rotate freely in the two positioning blocks. Rotating the nut of the orientator to enable the orientation chuck to clamp the exhaust edge of the blade; and the jacking bolt is screwed down to enable the step of the large end surface of the blade to be close to the lower end surface of the large end positioning block, and the large end and the small end are pressed tightly to press the screw, so that the blade is accurately positioned and firmly clamped.
The device of the invention is used for processing the opposite sides of the cylinders at the large ends of the blades and the threaded holes on the top surfaces of the cylinders. The included angle between the opposite sides of the large ends of the blades and the axial lines of the two ends of the blades is required to be 20 +/-10', and the perpendicularity between the opposite sides and the step surfaces of the large ends is required to be 0.02 mm. Through the processing verification of multiple batches of products, the device can ensure that the included angle error is within 0.2' and the verticality error is within 0.01 mm.
The method comprises the following specific implementation steps:
1. and placing the clamp on a machine tool workbench, aligning the leveling clamp, and fixing the clamp on the machine tool workbench.
2. And taking down the large-end pressing block of the clamp, and loosening the small-end pressing screw to enable the small-end cylinder of the blade to be easily placed into the small-end positioning block of the clamp.
3. The small end cylinder of the blade is placed in the clamp positioning block, and then the large end pressing block is arranged. Screws at two ends of the pressing clamp are manually screwed down to enable the pressing blocks at two ends to lean on the blade cylinder lightly, and the blade can rotate freely in the two positioning blocks.
4. The orienter nut is rotated so that the orienting chuck grips the exhaust edge of the vane.
5. And screwing the small end jacking bolt to enable the large end surface step of the blade to be close to the lower end surface of the large end positioning block.
6. And the large end and the small end are pressed tightly to press the screws, so that the blade is accurately positioned and firmly clamped.
Example 2:
in order to realize the positioning and clamping of the turbine blade of the aircraft engine, the following embodiments are provided:
as shown in fig. 1, fig. 2, fig. 3 and fig. 8, in the present embodiment, an adaptive angle accurate positioning and clamping device for an adjustable turbine blade is provided, which includes a jacking bolt 1, a clamp body 2, a bracket 3, a small end positioning block 7, a large end positioning block 8 and a director 11; the puller bolt 1 is in interference fit through a positioning pin and is fixed at the lower left of the clamp body 2 by a compression screw; the upper end of the puller bolt 1 is connected with a bracket 3, and the bracket 3 is fixedly arranged on the fixture body 2; the small end positioning block 7 is arranged at the upper end of the bracket 3 and is used for connecting and fixing one end of the blade; the large-end positioning block 8 is arranged above the left side of the fixture body 2 and used for connecting and fixing the top angle of the upper end of the blade; the vane positioning device is characterized in that the orientator 11 is arranged at the upper right of the clamp body 2 and connected with an exhaust edge of a vortex blade, a spring 12 is arranged inside the orientator 11, an orientation chuck 10 is connected onto the orientator 11, the orientation chuck 10 performs horizontal movement and circumferential rotation under the action of the spring 12, and the small end positioning block 7 and the large end positioning block 8 are matched to automatically determine the position of the vane through a three-point positioning principle.
Specifically, fig. 8 is a schematic three-dimensional structure diagram of the precise positioning and clamping device for the adjustable turbine blade adaptive angle proposed in this embodiment, and it can be seen from the diagram that the turbine blade is fixed and clamped on the positioning and clamping device through the small end positioning block 7, the large end positioning block 8 and the orienter 11, wherein the orienter 11 is connected and fixes the blade through the orienting chuck 10, and the orienting chuck 10 can automatically adapt to the changes of the shape and size of the blade profile.
In the present embodiment, the orientator 11 further comprises a cover plate 13 arranged at the right end of the spring 12 and a nut 14 connected to the right side of the orientator 11, as shown in fig. 3.
In this embodiment, the locating clip 10 is able to automatically adapt to changes in the shape and size of the profile of the blade.
In this embodiment, the large end positioning block 8, the orientator 11, the small end positioning block 7 and the fixture body 2 are all fixed by interference fit of positioning pins and compression screws.
In the embodiment, the large end positioning block 8 is fixed on the clamp body 2 through an internal hexagonal screw 5 and a cylindrical pin 4.
In the present embodiment, the bracket 3 is fixedly mounted on the clamp body 2 by a cylindrical pin 4 and an internal hexagonal screw 5.
In this embodiment, the positioning clamp 10 is of a symmetrical V-shaped structure.
In this embodiment, a small end pressing block 6 is arranged on the small end positioning block 7, the small end positioning block 7 is connected with the vertex angle of the lower end of the blade, and one end of the turbine blade is fixed on the small end positioning block 7 through the small end pressing block 6.
In this embodiment, a large-end pressing block 9 is arranged on the large-end positioning block 8, the large-end positioning block 8 is connected with the top angle of the upper end of the turbine blade, and the top angle of the upper end of the turbine blade is fixed on the large-end positioning block 8 through the large-end pressing block 9.
It is added that the working principle of the invention is as follows: the orientation chuck automatically determines the correct position of the vortex blade by means of horizontal movement and circumferential rotation under the action of a spring in the orientator according to the shape surface of the vortex blade and by matching with the small-end positioning block and the large-end positioning block through a three-point positioning principle.
The working process is as follows: the two cylinders of the vortex blade are placed in the positioning blocks at the two ends, the compression screw is screwed up manually to enable the compression block to lean against the cylinder of the vortex blade lightly, and the blade can rotate freely in the two positioning blocks. Rotating the nut of the orientator to enable the orientation chuck to clamp the exhaust edge of the blade; and the jacking bolt is screwed down to enable the step of the large end surface of the blade to be close to the lower end surface of the large end positioning block, and the large end and the small end are pressed tightly to press the screw, so that the blade is accurately positioned and firmly clamped.
The device of the invention is used for processing the opposite sides of the large-end cylinders of the vortex blade and the threaded holes on the top surface. The included angle between the opposite side of the large end of the vortex blade and the axial line of the two ends of the blade is required to be 20 +/-10', and the perpendicularity between the opposite side and the step surface of the large end is required to be 0.02 mm. Through the processing verification of multiple batches of products, the device can ensure that the included angle error is within 0.2' and the verticality error is within 0.01 mm.
The method comprises the following specific implementation steps:
1. and placing the clamp on a machine tool workbench, aligning the leveling clamp, and fixing the clamp on the machine tool workbench.
2. And taking down the large-end pressing block of the clamp, and loosening the small-end pressing screw to enable the small-end cylinder of the vortex blade to be easily placed into the small-end positioning block of the clamp.
3. The small end cylinder of the vortex blade is placed in the clamp positioning block, and then the large end pressing block is arranged. Screws at two ends of the pressing clamp are manually screwed down to enable the pressing blocks at two ends to lightly lean against the cylinders of the vortex blades, and the vortex blades can freely rotate in the two positioning blocks.
4. The orientator nut is rotated to cause the orientation chuck to clamp the exhaust edge of the turbine blade.
5. And screwing the small end jacking bolt to enable the large end surface step of the vortex blade to be close to the lower end surface of the large end positioning block.
6. And the large end and the small end are pressed tightly to press the screws, so that the accurate positioning and firm clamping of the turbine blade are realized.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. An adjustable blade self-adaptive angle accurate positioning clamping device is characterized by comprising a puller bolt (1), a clamp body (2), a support (3), a small end positioning block (7), a large end positioning block (8) and a director (11); the puller bolt (1) is in interference fit through a positioning pin and is fixed at the lower left of the clamp body (2) by a compression screw; the upper end of the puller bolt (1) is connected with a bracket (3), and the bracket (3) is fixedly arranged on the clamp body (2); the small end positioning block (7) is arranged at the upper end of the bracket (3) and is used for connecting and fixing one end of the blade; the large-end positioning block (8) is arranged above the left side of the clamp body (2) and is used for connecting and fixing the top angle of the upper end of the blade; the vane positioning device is characterized in that the orientator (11) is arranged above the right side of the clamp body (2) and connected with an exhaust edge of a vane, a spring (12) is arranged inside the orientator (11), an orientation chuck (10) is connected to the orientator (11), the orientation chuck (10) performs horizontal movement and circumferential rotation under the action of the spring (12), and the position of the vane is automatically determined by matching with a small-end positioning block (7) and a large-end positioning block (8) through a three-point positioning principle.
2. The adjustable blade self-adaptive angle accurate positioning and clamping device as claimed in claim 1, wherein the orientator (11) further comprises a cover plate (13) arranged at the right end of the spring (12) and a nut (14) connected to the right side of the orientator (11).
3. The adjustable blade adaptive angle precise positioning and clamping device as claimed in claim 1, wherein the positioning chuck (10) automatically adapts to the shape and size changes of the blade profile.
4. The adjustable blade self-adaptive angle precise positioning and clamping device as claimed in claim 1, wherein the large end positioning block (8), the orientator (11), the small end positioning block (7) and the clamp body (2) are in interference fit through positioning pins and are fixed through compression screws.
5. The adjustable blade self-adaptive angle precise positioning and clamping device as claimed in claim 4, wherein the large end positioning block (8) is fixed on the clamp body (2) through an inner hexagonal screw (5) and a cylindrical pin (4).
6. The adjustable blade self-adaptive angle precise positioning and clamping device as claimed in claim 1, wherein the bracket (3) is fixedly installed on the clamp body (2) through a cylindrical pin (4) and an internal hexagonal screw (5).
7. The adjustable blade self-adaptive angle precise positioning and clamping device as claimed in claim 1, wherein the positioning chuck (10) adopts a symmetrical V-shaped structure.
8. The adjustable blade self-adaptive angle accurate positioning and clamping device according to claim 1, wherein the small end positioning block (7) is provided with a small end pressing block (6), the small end positioning block (7) is connected with the vertex angle of the lower end of the blade, and one end of the blade is fixed on the small end positioning block (7) through the small end pressing block (6).
9. The adjustable blade self-adaptive angle accurate positioning and clamping device as claimed in claim 1, wherein the big end positioning block (8) is provided with a big end pressing block (9), the big end positioning block (8) is connected with the upper vertex angle of the blade, and the upper vertex angle of the blade is fixed on the big end positioning block (8) through the big end pressing block (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110789354.9A CN113458823A (en) | 2021-07-13 | 2021-07-13 | Adjustable blade self-adaptation angle accurate positioning clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110789354.9A CN113458823A (en) | 2021-07-13 | 2021-07-13 | Adjustable blade self-adaptation angle accurate positioning clamping device |
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| Publication Number | Publication Date |
|---|---|
| CN113458823A true CN113458823A (en) | 2021-10-01 |
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| CN202110789354.9A Pending CN113458823A (en) | 2021-07-13 | 2021-07-13 | Adjustable blade self-adaptation angle accurate positioning clamping device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115284030A (en) * | 2022-06-30 | 2022-11-04 | 无锡透平叶片有限公司 | Tablet press is clamping device for blade |
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2021
- 2021-07-13 CN CN202110789354.9A patent/CN113458823A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115284030A (en) * | 2022-06-30 | 2022-11-04 | 无锡透平叶片有限公司 | Tablet press is clamping device for blade |
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