CN116441430A - Blade hot extrusion forming device - Google Patents
Blade hot extrusion forming device Download PDFInfo
- Publication number
- CN116441430A CN116441430A CN202310722056.7A CN202310722056A CN116441430A CN 116441430 A CN116441430 A CN 116441430A CN 202310722056 A CN202310722056 A CN 202310722056A CN 116441430 A CN116441430 A CN 116441430A
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- blade
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- 238000001192 hot extrusion Methods 0.000 title claims abstract description 23
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 238000001125 extrusion Methods 0.000 claims description 47
- 241000446313 Lamella Species 0.000 claims description 24
- 239000002994 raw material Substances 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims description 5
- 238000000926 separation method Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- 240000007643 Phytolacca americana Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
- B21D45/04—Ejecting devices interrelated with motion of tool
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The application provides a blade hot extrusion device belongs to blade fashioned technical field, includes: the workbench is provided with a lifting ejector rod, the periphery of the ejector rod is rotationally sleeved with a die parting sleeve, and the die parting sleeve comprises a cylindrical section and an elliptical section; a cavity with an opening at the top is arranged in a mounting seat arranged on the workbench, a through hole for a cylindrical section to pass through is arranged at the bottom of the mounting seat, the cylindrical section and the through hole are rotationally arranged, and an elliptic section is positioned in the cavity; the mold arranged in the cavity comprises a first split mold and a second split mold, the first split mold and the second split mold enclose a blade forming cavity, and a split mold accommodating groove matched with the peripheral side wall of the elliptical section is arranged below the blade forming cavity; after the blade is formed, the ejector rod pushes up the die and the blade to a certain height at the same time, and drives the elliptical section to rotate, so that the first valve die and the second valve die are separated, the acting force of the ejector rod on the blade is reduced, and the deformation caused by the acting force of the first valve die and the second valve die on the blade in the separation process is reduced.
Description
Technical Field
The application relates to the field of blade forming, in particular to a blade hot extrusion forming device.
Background
With the wide application of extrusion technology in modern industry, the design and manufacture of extrusion dies is becoming more and more important. The extrusion molding of engine blades belongs to hot extrusion molding, the heating temperature of raw materials is more than 1000 ℃, the deformation of blade tenons is large, the profile of blade bodies is thinner, and the requirements on the dimensional accuracy and the surface quality of forgings are higher, so the requirements on the design and the manufacture of extrusion dies are very high.
Traditional extrusion die is closed whole mould to ejecting structure is direct ejecting part, and to engine blade, the blade length is thin, and part temperature is higher after the extrusion, and direct ejecting blade receives the external force to take place to warp easily.
Disclosure of Invention
In view of this, the present application provides a blade hot extrusion molding device, has solved the problem among the prior art, reduces the deformation of ejecting blade in-process blade.
The application provides a blade hot extrusion device adopts following technical scheme:
a blade hot extrusion molding apparatus comprising:
the workbench is provided with a push rod moving along the vertical direction, the periphery of the push rod is sleeved with a split sleeve, the split sleeve and the push rod are rotationally arranged, and the split sleeve comprises a cylindrical section with a circular peripheral cross section and an elliptical section with an elliptical peripheral cross section, wherein the cylindrical section and the elliptical section are distributed from top to bottom;
the mounting seat is arranged on the workbench, a containing cavity with an opening at the top is arranged in the mounting seat, the containing cavity is gradually reduced from top to bottom, a through hole for a cylindrical section to pass through is formed in the bottom of the mounting seat, the cylindrical section and the through hole are rotationally arranged, the elliptical section is positioned in the containing cavity, and a through groove communicated with the through hole is formed in the side wall of the bottom of the mounting seat;
the punch is positioned above the accommodating cavity;
the die comprises a first split die and a second split die, wherein the first split die and the second split die are arranged in the containing cavity, the peripheral side faces of the first split die and the second split die are attached to the containing cavity, the opposite side faces of the first split die and the second split die are vertically arranged and mutually abutted, blade molded faces matched with the outer wall faces of blades are arranged on the opposite side faces of the first split die and the second split die, a blade forming cavity is formed by surrounding the first split die and the second split die, a first groove is formed in the upper side of the blade molded faces on the opposite side faces of the first split die and the second split die, a raw material containing cavity with an opening at the top is formed by surrounding the first split die and the second split die, a second groove is formed in the lower side of the blade molded faces, two split die containing grooves are formed by surrounding the opening at the bottom of the split die, the top wall of the split die is penetrated by the blade forming cavity, and the side walls of the split die are respectively abutted to the top wall of the split die and are sequentially communicated with the top wall of the split die;
and the output end of the driving device penetrates through the through groove to be connected with the cylindrical section and is used for driving the cylindrical section to rotate around the axis.
Optionally, the long axis of the ellipse on the cross section of the ellipse section corresponds to the abutting surface of the first and second petals.
Optionally, the drive arrangement includes the poking rod, be equipped with the jack on the lateral wall that the cylinder section corresponds the logical groove, poking rod one end is pegged graft in the jack, poking rod's the other end stretches out logical groove.
Optionally, when the periphery of oval section with the inner wall laminating of dividing the mould holding tank, the poking rod supports a lateral wall of switch-on groove, just the poking rod is parallel to the lateral wall of switch-on groove by poking rod butt.
Optionally, the side wall and the diapire of holding the chamber are equipped with the sign line, the sign line corresponds the butt joint face of first lamella mould and second lamella mould, be equipped with the sign seam on the lateral wall of oval section, divide the mould holding tank with when oval section matches the laminating, the sign seam with the sign line aligns.
Optionally, the bottom opening of the split-die accommodating groove is provided with an edge chamfer.
Optionally, the lateral surface that first lamella mould and second lamella mould are on the back of body is equipped with the direction sand grip, the convex thickness of direction sand grip is the same on the mould different height, be equipped with the guide groove that holds the direction sand grip on holding the chamber inner wall, the guide groove runs through the roof of mount pad.
Optionally, the blade molding cavity includes tenon portion and blade body portion that distributes from top to bottom in proper order, the side that first lamella mould and second lamella mould are relative sets up the neck piece at the top of blade molding cavity, two the neck piece opposite side be equipped with the tenon profile of the tenon matching of blade, two the neck piece butt joint is enclosed the tenon portion.
Optionally, be equipped with the pre-extrusion piece on the raw and other materials holds chamber bottom lateral wall, the diapire of pre-extrusion piece is laminated with the roof of neck piece, two on the raw and other materials holds chamber bottom lateral wall the side that the pre-extrusion piece is opposite is equipped with the pre-extrusion profile, two the pre-extrusion piece butt joint encloses into the pre-extrusion hole, the inner wall in pre-extrusion hole compares tenon portion inwards protrusion 0.1-0.5mm.
Optionally, the pre-extrusion block is detachably inlaid on the side wall of the raw material accommodating cavity.
In summary, the present application includes the following beneficial technical effects:
according to the method, the blade and the die are lifted at the same time, the acting force of the ejector rod is basically borne by the die, the acting force of the ejector rod on the blade is reduced, and the deformation of the blade caused by the acting force of the ejector rod on the blade is reduced; moreover, the mold and the blade are directly separated from each other along the horizontal direction, so that mutual friction and acting force hardly exist between the separation process of the first and second dies and the blade, and deformation caused by the acting force of the separation process of the first and second dies on the blade is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a blade hot extrusion molding apparatus of the present application without a mold;
FIG. 2 is a top view of a blade hot extrusion device of the present application with a mold placed;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic illustration of the construction of opposite sides of a first valve and a second valve of the present application;
FIG. 5 is a top view of the mount, split sleeve and ejector pin of the present application;
FIG. 6 is a cross-sectional view of the overall structure of the die of the present application with pre-extruded blocks.
Reference numerals illustrate: 1. a work table; 11. a push rod; 12. a punch; 2. a die sleeve; 21. a cylindrical section; 22. an elliptical section; 3. a mounting base; 31. a cavity; 32. a through hole; 33. a through groove; 34. a guide groove; 35. a guide convex strip; 4. a mold; 41. a first die; 42. a second die; 43. a blade forming cavity; 431. a tenon portion; 432. a blade body portion; 44. a raw material accommodating chamber; 45. a parting receiving groove; 46. pre-extruding blocks; 47. pre-extruding holes; 5. a toggle rod; 51. and a jack.
Detailed Description
Embodiments of the present application are described in detail below with reference to the accompanying drawings.
Other advantages and effects of the present application will become apparent to those skilled in the art from the present disclosure, when the following description of the embodiments is taken in conjunction with the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. The present application may be embodied or carried out in other specific embodiments, and the details of the present application may be modified or changed from various points of view and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present application, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should also be noted that the illustrations provided in the following embodiments merely illustrate the basic concepts of the application by way of illustration, and only the components related to the application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided in order to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
The embodiment of the application provides a blade hot extrusion molding device.
As shown in fig. 1 and 2, a hot extrusion molding apparatus for a blade includes:
the workbench 1, be equipped with the ejector pin 11 that removes along vertical direction on the workbench 1, ejector pin 11 periphery cover is equipped with split sleeve 2, split sleeve 2 and ejector pin 11 rotate and set up, split sleeve 2 is including from last to the lower periphery cross section that distributes for circular shape cylindrical section 21 and periphery cross section elliptical oval section 22, and cylindrical section 21 and elliptical section 22 an organic whole set up.
The mount pad 3 is installed on the workstation 1, be equipped with open-top's tube-shape appearance chamber 31 in the mount pad 3, hold the chamber 31 to reduce from top to bottom gradually, mount pad 3 bottom is equipped with the through-hole 32 that supplies cylindrical section 21 to pass, cylindrical section 21 and through-hole 32 rotate and set up, oval section 22 is located holds the chamber 31, be equipped with the intercommunication on the lateral wall of mount pad 3 bottom through-hole 32's logical groove 33.
The punch 12 is located above the cavity 31.
As shown in fig. 2, fig. 3 and fig. 4, the mold 4 comprises a first split mold 41 and a second split mold 42, the first split mold 41 and the second split mold 42 are placed in the cavity 31, the peripheral side surfaces of the first split mold 41 and the second split mold 42 are attached to the cavity 31, the opposite side surfaces of the first split mold 41 and the second split mold 42 are vertically arranged and mutually abutted, the opposite side surfaces of the first split mold 41 and the second split mold 42 are provided with blade molded surfaces matched with the outer wall surfaces of the blades, the opposite side surfaces of the first split mold 41 and the second split mold 42 are surrounded with blade molded cavities 43, the opposite side surfaces of the first split mold 41 and the second split mold 42 are provided with first grooves, the two first grooves are surrounded with raw material accommodating cavities 44, the opposite side surfaces of the first split mold 41 and the second split mold 42 are provided with second grooves below the blade molded surfaces, the two second grooves are formed with split grooves 45 open at the bottoms of the first split mold 41 and the second split mold 42, the split molds 45 are connected with the top wall 45 through the top wall 45 of the split molds 45, and the split molds 45 are connected with the top wall 45 through the top wall 45 of the split molds are sequentially, and the top wall 45 are connected with the top wall 45 of the split molds are connected with the top wall 45.
And the output end of the driving device penetrates through the through groove 33 and is connected with the cylindrical section 21, and the driving device is used for driving the cylindrical section 21 to rotate around the axis.
The blade hot extrusion forming device of the application is implemented according to the following principle: firstly, controlling the ejector rod 11 on the workbench 1 to extend out, and placing the mounting seat 3 on the workbench 1 to ensure that the ejector rod 11 passes through the through hole 32; the die-separating sleeve 2 is placed into the containing cavity 31 from the upper part of the containing cavity 31, the die-separating sleeve 2 is sleeved on the periphery of the ejector rod 11, the cylindrical section 21 passes through the through hole 32, the top wall of the ejector rod 11 is adjusted to be flush with the top wall of the elliptical section 22, and at the moment, the die-separating sleeve 2, the ejector rod 11 and the through hole 32 are coaxial, so that the mounting seat 3 is fixed on the workbench 1. The first and second split molds 41 and 42 are placed in the accommodating cavity 31, and the relative angles of the first and second split molds 41 and 42 and the elliptical section 22 are adjusted to enable the split mold accommodating groove 45 to be sleeved on the periphery of the elliptical section 22, and the split mold accommodating groove 45 is completely attached to the elliptical section 22, so that the assembly of the mold 4 is completed. When the blade is processed, raw materials are placed into the raw material accommodating cavity 44, the punch 12 is controlled to downwards extrude the raw materials, the raw materials enter the blade forming cavity 43 for forming, and the punch 12 is controlled to rise and reset. After the blade is formed, the ejector rod 11 is controlled to extend upwards to eject the die 4 and the blade upwards for a certain distance, at the moment, the die-dividing accommodating groove 45 also moves upwards, a gap exists between the outer side walls of the first die 41 and the second die 42 and the inner side walls of the accommodating cavity 31, the ejector rod 11 is controlled to eject upwards for a distance to enable the elliptical section 22 to be still in the die-dividing accommodating groove 45, then the driving device is used for controlling the whole die-dividing sleeve 2 to rotate, and the rotation of the elliptical section 22 applies an outward acting force in the horizontal direction to the side walls of the die-dividing accommodating groove 45 to enable the first die 41 and the second die 42 to be separated along the horizontal direction, so that the die 4 and the blade are separated instantaneously. According to the method, the blade and the die 4 are lifted at the same time, the acting force of the ejector rod 11 is basically borne by the die 4, the acting force of the ejector rod 11 on the blade is reduced, and the blade deformation caused by the acting force of the ejector rod 11 on the blade is reduced; moreover, the mold 4 and the blades are directly separated from each other in the horizontal direction, so that there is little mutual friction and force between the blades and the separation process of the first and second molds 41 and 42, and deformation caused by the force of the separation process of the first and second molds 41 and 42 on the blades is reduced. The upward movement of the ejector rod 11 can then be controlled continuously until the blade can be completely removed. After the blades are taken out, the driving device controls the die-splitting sleeve 2 to reset, the ejector rod 11 is lowered, the first valve die 41 and the second valve die 42 are reset, and extrusion molding of the next blade is continued.
As shown in fig. 2 and 5, the outer sides of the first and second molds 41 and 42 opposite to each other are provided with guide ribs 35, the thicknesses of the guide ribs 35 protruding from the molds 4 at different heights are the same, the inner wall of the cavity 31 is provided with guide grooves 34 for accommodating the guide ribs 35, and the guide grooves 34 penetrate through the top wall of the mounting seat 3. After the first and second molds 41 and 42 are placed into the cavity 31, the first and second molds 41 and 42 can be placed into the cavity 31 after the guide ribs 35 are aligned with the guide grooves 34. When the split sleeve 2 is rotated, the arrangement of the guide convex strips 35 limits the rotation of the die 4 in the circumferential direction, but the separation of the first split die 41 and the second split die 42 is not affected, so that the first split die 41 and the second split die 42 can be quickly separated along with the rotation of the elliptical section 22, and the die splitting efficiency is improved.
The long axis of the ellipse in the cross section of the elliptical segment 22 corresponds to the interface of the first and second petals 41, 42. The depth of the single second groove cladding ellipse is minimized, the acting force of the parting receiving groove 45 and the ellipse section 22 is reduced, the ellipse section 22 is conveniently and rapidly rotated, the first and second molds 41 and 42 are rapidly separated, and the parting efficiency is improved.
The driving device comprises a poking rod 5, a jack 51 is arranged on the side wall of the cylindrical section 21 corresponding to the through groove 33, one end of the poking rod 5 is inserted into the jack 51, and the other end of the poking rod 5 extends out of the through groove 33. The split sleeve 2 is driven to rotate by controlling the toggle rod 5 to rotate around the axis of the cylindrical section 21. The rotation of the die-splitting sleeve 2 is controlled by the toggle rod 5, so that the driving structure is simplified, and the reliability of the device is improved.
When the outer circumference of the elliptical section 22 is attached to the inner wall of the split mold accommodating groove 45, the toggle lever 5 abuts against one side wall of the through groove 33. After the parting operation is finished, the poking rod 5 is controlled to be abutted against the side wall of the connecting groove 33 again, the elliptical section 22 can be reset, the die 4 falls under the action of gravity, the parting accommodating groove 45 can be sleeved on the periphery of the elliptical section 22, the time for adjusting the angle of the elliptical section 22 is shortened, and the resetting efficiency of the parting sleeve 2 is improved.
The side wall and the bottom wall of the cavity 31 are provided with identification lines, the identification lines correspond to the butt joint surfaces of the first petal form 41 and the second petal form 42, the side wall of the elliptical section 22 is provided with identification slits, and when the parting mold accommodating groove 45 is matched and attached with the elliptical section 22, the identification slits are aligned with the identification lines. In this embodiment, the poking rod 5 is parallel to the side wall of the through groove 33, which is abutted by the poking rod 5. Before the die 4 is placed, the mark slit and the mark line of the die-splitting sleeve 2 are controlled to be aligned, then the poke rod 5 is tightly attached to the appointed side wall of the through groove 33, and at the moment, the poke rod 5 is aligned with the jack 51 on the cylindrical section 21, so that the poke rod 5 can be quickly inserted into the jack 51. One end of the poking rod 5, which is inserted into the jack 51, can be arranged into a cone shape, so that the poking rod 5 can be conveniently inserted. And when the die 4 is placed, the identification seam of the die parting sleeve 2 is aligned with the identification line, the abutting joint of the first split die 41 and the second split die 42 is aligned with the identification line, and the die parting sleeve 2 and the die parting accommodating groove 45 are in a right matched state at this time, so that the installation efficiency of the die 4 is improved.
As shown in fig. 4, the bottom opening of the split mold accommodating groove 45 is provided with a chamfer. The bottom opening of the die-dividing accommodating groove 45 is enlarged, so that the die-dividing accommodating groove 45 can be better sleeved with the die-dividing sleeve 2, and the mounting efficiency of the die 4 is improved.
As shown in fig. 6, the blade forming cavity 43 includes a tenon portion 431 and a blade body portion 432 that are sequentially distributed from top to bottom, opposite sides of the first and second clack dies 41 and 42 are provided with neck blocks at the top of the blade forming cavity 43, opposite sides of the neck blocks are provided with tenon molded surfaces matched with the tenons of the blades, the tenon portion 431 is formed by abutting the neck blocks, the side surface below the neck blocks in the blade forming cavity 43 is matched with the blade body molded surface of the blade, and a portion below the neck blocks in the blade forming cavity 43 is used as the blade body portion 432 for blade body molding.
As shown in fig. 6, the bottom side wall of the raw material accommodating cavity 44 is provided with a pre-extrusion block 46, the bottom wall of the pre-extrusion block 46 is attached to the top wall of the neck block, opposite sides of the two pre-extrusion blocks 46 on the bottom side wall of the raw material accommodating cavity 44 are provided with pre-extrusion surfaces, the two pre-extrusion blocks 46 are abutted to form a pre-extrusion hole 47, and the inner wall of the pre-extrusion hole 47 protrudes inwards by 0.1-0.5mm compared with the tenon 431. The application sets up the inner circle slightly and is less than the pre-extrusion hole 47 of tenon portion 431, and the raw and other materials are less than the inner circle of tenon portion 431 after the extrusion of pre-extrusion hole 47, and later raw and other materials laminate completely and pre-extrusion hole 47 and blade body portion 432 under further extrusion effect, and the main friction of raw and other materials and mould 4 is undertaken by pre-extrusion piece 46, has reduced the wearing and tearing of raw and other materials to the neck piece in the extrusion process, improves blade forming precision and the life-span of mould 4, and the material in the pre-extrusion hole 47 does not belong to the part of blade, gets rid of through the mode of cutting or polishing after the blade shaping. The pre-extrusion block 46 is worn, and the material in the pre-extrusion hole 47 does not belong to the part of the blade, so that the wear of the pre-extrusion block 46 does not influence the precision of the blade, and the service life of the die 4 is ensured.
The pre-extrusion 46 is removably mounted to the side wall of the raw material receiving chamber 44. An embedded groove is formed in the raw material containing cavity 31, the pre-extrusion block 46 is embedded in the embedded groove, and the pre-extrusion block 46 and the embedded groove are in interference fit, so that the installation stability of the pre-extrusion block 46 is ensured. When the pre-extrusion block 46 is severely worn, the pre-extrusion block 46 can be replaced, so that the service life of the die 4 is further prolonged.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A blade hot extrusion molding apparatus, comprising:
the workbench (1), wherein the workbench (1) is provided with a push rod (11) moving along the vertical direction, the periphery of the push rod (11) is sleeved with a split sleeve (2), the split sleeve (2) and the push rod (11) are rotationally arranged, and the split sleeve (2) comprises a cylindrical section (21) with a circular peripheral cross section and an elliptic section (22) with an elliptic peripheral cross section, wherein the cylindrical section is distributed from top to bottom;
the mounting seat (3) is mounted on the workbench (1), a containing cavity (31) with an opening at the top is arranged in the mounting seat (3), the containing cavity (31) is gradually reduced from top to bottom, a through hole (32) for a cylindrical section (21) to pass through is formed in the bottom of the mounting seat (3), the cylindrical section (21) and the through hole (32) are rotatably arranged, the elliptical section (22) is positioned in the containing cavity (31), and a through groove (33) communicated with the through hole (32) is formed in the side wall at the bottom of the mounting seat (3);
a punch (12) located above the cavity (31);
mould (4), including first lamella mould (41) and second lamella mould (42), first lamella mould (41) and second lamella mould (42) place in hold chamber (31) in, just the periphery side of first lamella mould (41) and second lamella mould (42) is laminated with holding chamber (31), the vertical setting of side opposite of first lamella mould (41) and second lamella mould (42) and butt each other, be equipped with on the side opposite of first lamella mould (41) and second lamella mould (42) with blade profile that the blade outer wall matches, first lamella mould (41) and second lamella mould (42) enclose into blade and become die cavity (43), be equipped with first recess on the side opposite of first lamella mould (41) and second lamella mould (42) blade profile top open-ended raw and other materials holding chamber (44), two on the side opposite of first lamella mould (41) and second lamella mould (42) side vertical setting and butt each other, be provided with blade lower side opposite of first lamella mould (41) and second lamella mould (42) and blade profile blade lower side face and be provided with respectively one side open-ended top wall (45) and be equipped with respectively, top wall (45) and side wall (45) are cut out, top wall (45) are cut out respectively, top wall (45) and side wall (45) are cut out, 45) are cut out respectively, bottom die (45) is cut out, top wall (45) is cut out, and bottom that is cut out, and the top wall is cut out and contains, the blade forming cavity (43) and the parting die accommodating groove (45) are sequentially bordered and communicated with each other, and the top end of the ejector rod (11) is abutted against the top wall of the parting die accommodating groove (45);
and the output end of the driving device penetrates through the through groove (33) to be connected with the cylindrical section (21) and is used for driving the cylindrical section (21) to rotate around the axis.
2. The hot extrusion apparatus of claim 1, wherein the long axis of the ellipse in the cross-section of the elliptical segment (22) corresponds to the interface of the first and second dies (41, 42).
3. The hot extrusion forming device for the blades according to claim 1, wherein the driving device comprises a poking rod (5), a jack (51) is arranged on the side wall of the cylindrical section (21) corresponding to the through groove (33), one end of the poking rod (5) is inserted into the jack (51), and the other end of the poking rod (5) extends out of the through groove (33).
4. A blade hot extrusion apparatus according to claim 3, wherein the tap lever (5) abuts against a side wall of the through groove (33) when the outer periphery of the elliptical section (22) is fitted to the inner wall of the split-mold accommodating groove (45), and the tap lever (5) is parallel to the side wall of the through groove (33) which is abutted against by the tap lever (5).
5. The hot extrusion forming device for blades according to claim 4, wherein identification lines are arranged on the side wall and the bottom wall of the cavity (31), the identification lines correspond to the butt joint surfaces of the first valve die (41) and the second valve die (42), identification slits are arranged on the side wall of the elliptical section (22), and the identification slits are aligned when the parting die accommodating groove (45) and the elliptical section (22) are matched and adhered.
6. The blade hot extrusion apparatus according to claim 4, wherein the bottom opening edge of the split mold receiving groove (45) is chamfered.
7. The hot extrusion device for the blades according to claim 1, wherein the outer side surfaces of the first and second dies (41, 42) opposite to each other are provided with guide convex strips (35), the guide convex strips (35) have the same thickness protruding from the die (4) at different heights, the inner wall of the accommodating cavity (31) is provided with guide grooves (34) for accommodating the guide convex strips (35), and the guide grooves (34) penetrate through the top wall of the mounting seat (3).
8. The hot extrusion forming device for the blade according to claim 1, wherein the blade forming cavity (43) comprises a tenon portion (431) and a blade body portion (432) which are sequentially distributed from top to bottom, neck blocks are arranged on the top of the blade forming cavity (43) on opposite sides of the first flap die (41) and the second flap die (42), tenon molded surfaces matched with tenons of the blade are arranged on opposite sides of the two neck blocks, and the tenon portions (431) are formed by abutting joint of the two neck blocks.
9. The blade hot extrusion molding device according to claim 8, wherein a pre-extrusion block (46) is arranged on the bottom side wall of the raw material accommodating cavity (44), the bottom wall of the pre-extrusion block (46) is attached to the top wall of the neck block, pre-extrusion surfaces are arranged on opposite sides of the two pre-extrusion blocks (46) on the bottom side wall of the raw material accommodating cavity (44), the two pre-extrusion blocks (46) are butted to form a pre-extrusion hole (47), and the inner wall of the pre-extrusion hole (47) protrudes inwards by 0.1-0.5mm compared with the tenon head (431).
10. The blade hot extrusion apparatus of claim 9, wherein the pre-extrusion block (46) is removably mounted to a sidewall of the raw material receiving cavity (44).
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