CN109201891B - Twisting die for blade - Google Patents
Twisting die for blade Download PDFInfo
- Publication number
- CN109201891B CN109201891B CN201811265420.7A CN201811265420A CN109201891B CN 109201891 B CN109201891 B CN 109201891B CN 201811265420 A CN201811265420 A CN 201811265420A CN 109201891 B CN109201891 B CN 109201891B
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- CN
- China
- Prior art keywords
- die
- blade
- pressing block
- fixing plate
- face
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/14—Twisting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/78—Making other particular articles propeller blades; turbine blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
Abstract
The application relates to a twisting mould of a blade, which comprises an upper die holder, a lower die holder, a guide post and a guide sleeve for connecting the upper die holder and the lower die holder, and further comprises: the upper fixing plate is fixedly connected with the upper die holder; the lower fixing plate is fixedly connected with the lower die holder; the pressing block is arranged at the center of the upper fixing plate; the support block is arranged right below the pressing block and is movably nested in the lower fixing plate, the upper end face of the support block extends out of the upper end face of the lower fixing plate, and a first groove for installing a discharging spring is formed in the lower end face of the support block; and the torsion mechanisms comprise an upper torsion unit and a lower torsion unit, and the lower torsion unit is arranged right below the upper torsion unit after rotating 180 degrees. The application has the advantages of high production efficiency, low material consumption, good product quality and the like, has very compact structure, smooth workpiece falling-off die, convenient operation, safe use, economy and energy conservation, and can also meet the requirement of mass production.
Description
Technical Field
The application belongs to the field of machining, and particularly relates to a torsion die for a blade, which is particularly suitable for a torsion die for a special small motor blade.
Background
Most of the existing injection molding blades are applied to electronic and small-sized mechanical equipment and household equipment, and are required to be small in size and light in weight so as to achieve the aims of power saving and rapid heat dissipation, but the application is limited to the small-sized equipment, the heat dissipation capacity is limited, the abrasion is serious in long-time use, the heat dissipation capacity is reduced, and the injection molding blades cannot be applied to medium-sized or large-sized mechanical equipment. Cast mold blades are popular to a certain extent and in a certain period of time, with the development of the casting industry, the precision of cast parts is gradually increased, the cast mold blades are widely applied to medium-sized mechanical equipment or small-sized equipment with special requirements, the heat dissipation performance of the cast mold blades is much better than that of injection mold blades, and the method is simple, but the cast mold blades are rarely used on some medium-sized and precise instruments, because in some medium-sized and precise instruments, when the rotating speed is high, the precision of cast parts is insufficient, burrs and burrs are generated, the rotating speed of the instruments is influenced, a certain pressure is brought to the rotation of a shaft, and the rotation of a winner can influence the shaft to bend, generate noise, damage unnecessary dislike equipment and the like. Although the existing punching equipment can finish the local punching of the blade and finally is connected in a riveting mode, the equipment has the advantages of ensuring the speed and simultaneously realizing mass production, and being good in heat dissipation performance and widely applied to medium-sized equipment and small-sized equipment, the equipment has obvious defects that rivets exist, the blade of the equipment can be influenced by the rivets when rotating at high speed, the rivets scratch air to generate sonic boom, noise is generated, the precision of a shaft is influenced in the running process of the equipment, necessary economic loss is caused after accumulation, and the service life of the equipment is shortened.
Disclosure of Invention
In view of the above, the present application aims to provide a twisting mold for a blade, which aims to overcome the defects of the existing motor blade that the number of mold sets used in the production process is large, the process route is relatively long, the production cost is relatively high and the production efficiency is low.
In order to achieve the above object, the following technical scheme is adopted:
the utility model provides a twisting mold of blade, includes upper die base, die holder and the guide pillar and the guide pin bushing of upper and lower die base of connection, twisting mold still includes: the upper fixing plate is fixedly connected with the upper die holder; the lower fixing plate is fixedly connected with the lower die holder;
the pressing block is arranged at the center of the upper fixing plate, and the lower end face of the pressing block contacts with the blade to be twisted when the twisting die of the pressing block descends;
the support block is arranged right below the pressing block and movably nested in the lower fixing plate, the upper end face of the support block extends out of the upper end face of the lower fixing plate, the blades are arranged on the upper end face of the support block, and a first groove for installing a discharging spring is formed in the lower end face of the support block; and
the torsion mechanisms are uniformly distributed between the upper fixing plate and the lower fixing plate, wherein the torsion mechanisms comprise an upper torsion unit and a lower torsion unit, and the lower torsion unit is arranged right below the upper torsion unit after rotating 180 degrees;
the upper torsion unit comprises an upper pressing block, a male die and a first connecting spring, wherein the upper part of the upper pressing block is nested in the upper fixing plate, the lower part of the upper pressing block is rotationally connected with the male die through a rotating shaft, in addition, the upper pressing block is provided with a first inclined part, a first concave cavity for accommodating the male die to rotationally move is further formed in the first inclined part, one end of the first connecting spring is fixed in the first concave cavity, and the other end of the first connecting spring is fixed on the male die;
the lower torsion unit comprises a lower pressing block, a female die and a second connecting spring, wherein the lower part of the lower pressing block is nested in the lower fixing plate, the upper part of the lower pressing block is rotationally connected with the female die through a rotating shaft, in addition, the lower pressing block is provided with a second inclined part, the second inclined part is also provided with a second concave cavity for accommodating the rotary motion of the female die, one end of the second connecting spring is fixed in the second concave cavity, and the other end of the second connecting spring is fixed on the female die; at the same time as the time of this,
the first inclined portion and the second inclined portion have the same inclination angle and inclination direction.
Further, the position where the male die contacts with the upper pressing block is set to be an arc part, and a positioning protruding part is arranged at the other end of the male die far away from the arc part of the male die and used for positioning the blade in the forming process.
Further, the position where the female die contacts with the lower pressing block is set to be an arc part, and a positioning protruding part is arranged at the other end of the female die far away from the arc part of the female die and used for positioning the blade in the forming process.
Furthermore, the male die and the female die are arranged in the horizontal direction before twisting the blade.
Further, one end of the first connecting spring is arranged at the middle position in the first concave cavity, the other end of the first connecting spring is arranged at the middle position of the male die, one end of the second connecting spring is arranged at the middle position in the second concave cavity, and the other end of the second connecting spring is arranged at the middle position of the female die.
Further, a second groove matched with the supporting block is formed in the center of the lower end face of the pressing block, and a plurality of uniformly distributed pin holes for installing and positioning the blade are formed in the lower end face.
Further, a central boss which is used for fixing the blades and matched with the second groove of the lower end face of the pressing block is arranged at the central position of the upper end face of the supporting block, and positioning pins which are in one-to-one correspondence with the pin holes on the lower end face of the pressing block are arranged on the upper end face of the supporting block.
Further, the lower fixed plate comprises a connecting plate and a protective plate, the connecting plate is fixedly connected with the lower die holder, the protective plate is arranged above the connecting plate, a plurality of through grooves matched with the lower torsion unit and a plurality of grooves for the downward pressing movement of the blades are formed in the protective plate, and positioning pins are arranged in any groove.
Further, the locating pin sets up on the protection shield, two constant head tanks have been seted up on the outer periphery of supporting shoe, the locating pin with the constant head tank cooperation, and, the interval angle between two constant head tanks is 45.
Further, an upper base plate is arranged between the upper fixing plate and the upper die holder, and a lower base plate is arranged between the lower fixing plate and the lower die holder.
The beneficial effects of the application are as follows: the application has the advantages of high production efficiency, low material consumption, good product quality and the like, and has compact structure, smooth workpiece falling-off die, convenient operation and safe use; the method is economical and energy-saving, meets the green energy-saving port number advocated in China, and simultaneously can meet the quality requirements of customers on parts in mass production of the parts.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present application;
FIG. 2 is a schematic view of the structure of FIG. 1 with the upper and lower die holders removed;
FIG. 3 is a cross-sectional view of 3/4 of the structure shown in FIG. 1;
FIG. 4 is a cross-sectional view of a composite structure consisting of a swage block, support block, discharge spring and web;
fig. 5 is a schematic structural view of the protection plate referred to in fig. 1;
FIG. 6 is a cross-sectional view of the torsion mechanism of FIG. 2 prior to twisting;
FIG. 7 is a cross-sectional view of the torsion mechanism of FIG. 2 after torsion;
fig. 8 is a schematic view of the structure of the male mold referred to in fig. 6;
FIG. 9 is a schematic view of the structure of the support block;
FIG. 10 is a schematic view of the blade of FIG. 4 prior to twisting;
fig. 11 is a schematic view of the twisted blade of fig. 4.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
As shown in fig. 1 to 10, a twisting mold for a blade includes an upper mold base 1, a lower mold base 2, and a guide post 3 and a guide sleeve 4 connecting the upper mold base and the lower mold base, and in addition, the twisting mold further includes: an upper fixing plate 5, a lower fixing plate 6, a pressing block 7, a supporting block 8 and a plurality of torsion mechanisms 9.
As shown in fig. 1-2, an upper fixing plate 5 in the application is fixedly connected with the upper die holder 1; the lower fixing plate 6 is fixedly connected with the lower die holder 2.
As shown in fig. 2 and 4, the presser 7 according to the present application is disposed at the center of the upper fixing plate 5, and the lower end surface of the presser 7 contacts the blade 10 to be twisted when the twisting mold thereof is down; a second groove 71 matched with the supporting block 8 is formed in the center of the lower end surface of the pressing block 7, and a plurality of uniformly distributed pin holes 72 for mounting and positioning the blade 10 are formed in the lower end surface;
as shown in fig. 1-4, a supporting block 8 according to the present application is disposed directly under the pressing block 7 and movably nested in the lower fixing plate 6, and an upper end surface of the supporting block 8 extends out of an upper end surface of the lower fixing plate 6, where the upper end surface of the supporting block 8 is provided with the blade 10, and a lower end surface is provided with a first groove 82 for installing a discharge spring 81; the center of the upper end surface of the supporting block 8 is provided with a center boss 83 for fixing the blade 10 and matching with the second groove 71 of the lower end surface of the pressing block 7, and the upper end surface of the supporting block 8 is provided with fixing pins 84 corresponding to the upper pin holes 72 of the lower end surface of the pressing block 7 one by one.
The lower fixing plate 6 according to the present application may be a single body or a combination, and as a further improvement of the lower fixing plate 6 according to the present application, the lower fixing plate 6 may be provided as a combination. The specific structure is as follows: as shown in fig. 3, the lower fixing plate 6 includes a connecting plate 61 and a protecting plate 62, the connecting plate 61 is fixedly connected with the lower die holder 2, the protecting plate 62 is disposed above the connecting plate 61, and the supporting block 8 is disposed above the connecting plate 61 and movably nested in the protecting plate 62 for movement.
As shown in fig. 2, 6 and 7, the plurality of torsion mechanisms 9 according to the present application are uniformly distributed between the upper fixing plate 5 and the connecting plate 61, wherein the torsion mechanisms 9 include an upper torsion unit 91 and a lower torsion unit 92, and the lower torsion unit 92 is disposed right under the upper torsion unit 91 after rotating 180 °.
Wherein: the upper torsion unit 91 includes an upper pressing block 911, a male die 912 and a first connecting spring 913, wherein the upper portion of the upper pressing block 911 is nested in the upper fixing plate 5, and the lower portion thereof is rotatably connected with the male die 912 through a rotation shaft 914. In addition, the upper pressing block 911 has a first inclined portion 915, a first cavity 916 for accommodating the rotational movement of the male die 912 is further provided on the first inclined portion 915, and one end of the first connecting spring 913 is fixed in the first cavity 916, and the other end is fixed on the male die 912.
The lower torsion unit 92 includes a lower pressing block 921, a female die 922, and a second connection spring 923, the lower portion of the lower pressing block 921 is nested in the connection plate 61, the upper portion thereof is rotatably connected with the female die 922 through a rotation shaft 914, in addition, the lower pressing block 921 has a second inclined portion 924, the second inclined portion 915 is further provided with a second cavity 925 for accommodating the rotation movement of the female die 922, one end of the second connection spring 923 is fixed in the second cavity 925, and the other end is fixed on the female die 922.
The first inclined portion 915 and the second inclined portion 924 according to the present application have the same inclination angle and inclination direction; the position of the male die 912 contacting the upper pressing block 911 is set as an arc part 11, and the other end of the male die 912 far from the arc part 11 is provided with a positioning protruding part 12 for positioning the blade 10 in the forming process; the position where the female die 922 contacts the lower press block 921 is also set as a circular arc portion 11, and the other end of the female die 922 away from the circular arc portion 11 of the female die 922 has a positioning boss 12 for positioning the blade 10 during molding.
The male die 912 and the female die 922 are arranged in a horizontal position before twisting the blade 10, the blade 10 is in a shape shown in fig. 10, after the male die 912 and the female die 922 are twisted, the male die 912 and the female die 922 clamp the blade 10 completely, and the blade 10 is in a shape shown in fig. 11.
As shown in fig. 6, one end of the first connecting spring 913 is disposed at an intermediate position in the first cavity 916, the other end of the first connecting spring 913 is disposed at an intermediate position in the male die 912, one end of the second connecting spring 923 is disposed at an intermediate position in the second cavity 925, and the other end of the second connecting spring 923 is disposed at an intermediate position in the female die 922.
As shown in fig. 1 to 5, in order to protect the torsion mechanism 9, a protection plate 62 is added to the present application, and the specific structure of the protection plate 62 is as follows. The protecting plate 62 is provided with a plurality of through grooves 65 matched with the lower torsion unit 92 and a plurality of grooves 64 for the downward movement of the blade 10, and the positioning pin 63 is arranged in any groove 64; the positioning pin 63 is fixed on the protection plate 62, two positioning grooves 85 are formed in the outer circumferential surface of the supporting block 8, the positioning pin 63 is matched with the positioning grooves 85, and the interval angle between the two positioning grooves is 45 degrees, as shown in fig. 9; an upper base plate 13 is arranged between the upper fixing plate 5 and the upper die holder 1, and a lower base plate 14 is arranged between the lower fixing plate 6 and the lower die holder 2.
In the embodiment of the application, the blade 10 has 8 blade branches, in this embodiment the torsion mechanism 9 may be provided as 4 or 8. The number of torsion mechanisms 9 employed in this embodiment is 4.
The working principle of the application is as follows: the method comprises the steps that a blade 10 to be twisted is fixed on the upper end face of a supporting block 8, the blade 10 is fixed by a central boss 83 and a fixing pin 84 on the upper end face of the supporting block 8, one group of blades 10 is arranged between a male die 912 and a female die 922, the other group of blades 10 is arranged right above a groove 64 of a protecting plate 62 for downward movement of the blade 10, an upper die holder 1 is arranged downwards to drive a pressing block 7 and an upper twisting unit 91 to simultaneously move downwards, when the pressing block 7 is matched with the supporting block 8, a male die 912 and a female die 922 just clamp one group of blades 10, the upper die holder 1 is arranged downwards, the pressing block 7 and the upper twisting unit 91 are arranged downwards continuously, the supporting block 8 is pressed downwards by the pressing block 7, the male die 912 and the female die 922 clamp the blades 10 to twist, when the supporting block 8 is stopped downwards, the upper twisting unit 91 and the lower twisting unit 92 complete twisting of one group of blades 10, the other group of blades are arranged downwards in the groove 64 for downward movement of the blade 10, then the upper die holder 1 is arranged upwards to drive the pressing block 7 and the upper twisting unit 91, and the supporting block 8 is arranged under the action of a bottom unloading spring 81 of the supporting block 8, and the supporting block 8 is restored to be in a state; the blade 10 is pulled out, the locating pin 63 in the groove 64 is pulled out, the supporting block 8 is rotated for 45 degrees, the supporting block 8 is fixed by the locating pin 63, the blade 10 is rotated for 45 degrees and placed on the supporting block 8, then the upper die holder 1 descends, and the other group of untwisted blades 10 are twisted.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (8)
1. The utility model provides a twisting die of blade, includes upper die base, die holder and connects guide pillar and guide pin bushing of upper and lower die base, its characterized in that: the twisting die further comprises:
the upper fixing plate is fixedly connected with the upper die holder;
the lower fixing plate is fixedly connected with the lower die holder;
the pressing block is arranged at the center of the upper fixing plate, and the lower end face of the pressing block contacts with the blade to be twisted when the twisting die of the pressing block descends;
the support block is arranged right below the pressing block and movably nested in the lower fixing plate, the upper end face of the support block extends out of the upper end face of the lower fixing plate, the blades are arranged on the upper end face of the support block, and a first groove for installing a discharging spring is formed in the lower end face of the support block; and
the torsion mechanisms are uniformly distributed between the upper fixing plate and the lower fixing plate, wherein the torsion mechanisms comprise an upper torsion unit and a lower torsion unit, and the lower torsion unit is arranged right below the upper torsion unit after rotating 180 degrees;
the upper torsion unit comprises an upper pressing block, a male die and a first connecting spring, wherein the upper part of the upper pressing block is nested in the upper fixing plate, the lower part of the upper pressing block is rotationally connected with the male die through a rotating shaft, in addition, the upper pressing block is provided with a first inclined part, a first concave cavity for accommodating the male die to rotationally move is further formed in the first inclined part, one end of the first connecting spring is fixed in the first concave cavity, and the other end of the first connecting spring is fixed on the male die; the position of the male die, which is contacted with the upper pressing block, is set to be an arc part, and a positioning protruding part is arranged at the other end of the male die, which is far away from the arc part of the male die, and is used for positioning the blade in the forming process;
the lower torsion unit comprises a lower pressing block, a female die and a second connecting spring, wherein the lower part of the lower pressing block is nested in the lower fixing plate, the upper part of the lower pressing block is rotationally connected with the female die through a rotating shaft, in addition, the lower pressing block is provided with a second inclined part, the second inclined part is also provided with a second concave cavity for accommodating the rotary motion of the female die, one end of the second connecting spring is fixed in the second concave cavity, and the other end of the second connecting spring is fixed on the female die; the position of the female die, which is contacted with the lower pressing block, is set to be an arc part, and a positioning protruding part is arranged at the other end of the female die, which is far away from the arc part of the female die, and is used for positioning the blade in the forming process; at the same time as the time of this,
the first inclined portion and the second inclined portion have the same inclination angle and inclination direction.
2. A blade twisting die according to claim 1, wherein the male and female dies are arranged horizontally before twisting the blade.
3. The blade twisting mold according to claim 2, wherein one end of the first connecting spring is disposed at an intermediate position in the first cavity, the other end of the first connecting spring is disposed at an intermediate position of the male die, one end of the second connecting spring is disposed at an intermediate position in the second cavity, and the other end of the second connecting spring is disposed at an intermediate position of the female die.
4. The twisting mold of the blade according to claim 1, wherein a second groove matched with the supporting block is formed in the center of the lower end face of the pressing block, and a plurality of uniformly distributed pin holes for mounting and positioning the blade are formed in the lower end face.
5. The blade twisting mold according to claim 4, wherein a center boss for fixing the blade and being matched with the second groove of the lower end face of the pressing block is arranged at the center position of the upper end face of the supporting block, and positioning pins which are in one-to-one correspondence with the pin holes on the lower end face of the pressing block are arranged on the upper end face of the supporting block.
6. The blade twisting die according to claim 1, wherein the lower fixing plate comprises a connecting plate and a protecting plate, the connecting plate is fixedly connected with the lower die holder, the protecting plate is arranged above the connecting plate, a plurality of through grooves matched with the lower twisting unit and a plurality of grooves for the blade to move downwards are formed in the protecting plate, and positioning pins are arranged in any groove.
7. The blade twisting mold according to claim 6, wherein the positioning pin is arranged on the protection plate, two positioning grooves are formed in the outer circumferential surface of the supporting block, the positioning pin is matched with the positioning grooves, and the interval angle between the two positioning grooves is 45 degrees.
8. The blade twisting die of claim 1, wherein an upper backing plate is disposed between the upper fixing plate and the upper die holder, and a lower backing plate is disposed between the lower fixing plate and the lower die holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811265420.7A CN109201891B (en) | 2018-10-29 | 2018-10-29 | Twisting die for blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811265420.7A CN109201891B (en) | 2018-10-29 | 2018-10-29 | Twisting die for blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109201891A CN109201891A (en) | 2019-01-15 |
| CN109201891B true CN109201891B (en) | 2023-09-26 |
Family
ID=64997145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811265420.7A Active CN109201891B (en) | 2018-10-29 | 2018-10-29 | Twisting die for blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109201891B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845746B (en) * | 2020-12-31 | 2022-04-22 | 南京航空航天大学 | High-temperature progressive torsion forming device and method for fan blades |
| CN114798860B (en) * | 2022-04-19 | 2024-03-22 | 谭美珍 | Twisting device for hardware part machining |
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| SU937077A1 (en) * | 1980-04-10 | 1982-06-23 | Горьковский автомобильный завод (Производственное объединение "ГАЗ") | Die for twist bending |
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