CN114850435A - Casting process and casting equipment for squirrel cage rotor - Google Patents
Casting process and casting equipment for squirrel cage rotor Download PDFInfo
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- CN114850435A CN114850435A CN202210303922.4A CN202210303922A CN114850435A CN 114850435 A CN114850435 A CN 114850435A CN 202210303922 A CN202210303922 A CN 202210303922A CN 114850435 A CN114850435 A CN 114850435A
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- 238000005266 casting Methods 0.000 title claims abstract description 97
- 241000555745 Sciuridae Species 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 63
- 239000007921 spray Substances 0.000 claims abstract description 36
- 239000011248 coating agent Substances 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- 238000009750 centrifugal casting Methods 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000005119 centrifugation Methods 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims description 49
- 238000000576 coating method Methods 0.000 claims description 20
- 238000003825 pressing Methods 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 9
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 9
- 241001330002 Bambuseae Species 0.000 claims description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 9
- 239000011425 bamboo Substances 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000004512 die casting Methods 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000010924 continuous production Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/04—Centrifugal casting; Casting by using centrifugal force of shallow solid or hollow bodies, e.g. wheels or rings, in moulds rotating around their axis of symmetry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C23/00—Tools; Devices not mentioned before for moulding
- B22C23/02—Devices for coating moulds or cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/10—Accessories for centrifugal casting apparatus, e.g. moulds, linings therefor, means for feeding molten metal, cleansing moulds, removing castings
- B22D13/101—Moulds
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a casting process and casting equipment for a squirrel cage rotor, which relate to the technical field of rotor casting, and specifically comprise the following steps: step 1: placing the rotor iron core on a tray of a conveying chain in a direction; step 2: the rotor iron core is conveyed into the medium-frequency heating channel by the conveying chain, and the medium-frequency heating channel carries out preheating treatment on the rotor iron core; and step 3: the manipulator automatically picks the preheated rotor core and sends the rotor core into a casting machine, and the casting machine sprays a coating agent; and 4, step 4: casting aluminum liquid into a casting machine, controlling the temperature of the aluminum liquid at 790 ℃ and 810 ℃, and carrying out centrifugal casting by the casting machine; and 5: after casting and cooling, rapidly cooling, and automatically grabbing a rotor core through a manipulator after cooling to obtain a squirrel cage rotor; by the mode, after centrifugal casting is adopted, the mold is simple in structure, and a product is easy to replace; the production steps can be reduced after centrifugation is adopted, so that the skill requirement on operators is reduced.
Description
Technical Field
The invention relates to the technical field of rotor casting, in particular to a casting process and casting equipment for a squirrel cage rotor.
Background
The casting of aluminum for squirrel-cage rotors is currently carried out by a horizontal cold chamber die casting machine.
The horizontal cold chamber die casting machine has the following disadvantages:
1. the traditional die casting process adopts a horizontal cold chamber die casting mode, the die structure is complex, and the product replacement is complicated;
2. the horizontal cold chamber die casting has more production steps and higher requirement on the skills of operators;
3. the die-casting quality of the horizontal cold chamber die-casting mainly depends on the injection force and the injection speed of the die-casting machine, and the instability of the system pressure of the die-casting machine directly influences the injection force and the injection speed of the die-casting machine, so that the product produced by the process has large aluminum density discreteness and low qualified rate.
Therefore, a casting process and a casting device for the squirrel cage rotor are provided to solve the problems.
Disclosure of Invention
The invention aims to provide a casting process and casting equipment for a squirrel cage rotor, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a casting process of a squirrel cage rotor comprises the following specific steps:
step 1: placing the rotor iron core on a tray of a conveying chain in a direction;
step 2: the rotor iron core is conveyed into the medium-frequency heating channel by the conveying chain, and the medium-frequency heating channel carries out preheating treatment on the rotor iron core;
and step 3: the manipulator automatically picks the preheated rotor core and sends the rotor core into a casting machine, and the casting machine sprays a coating agent;
and 4, step 4: casting aluminum liquid into a casting machine, controlling the temperature of the aluminum liquid at 790 ℃ and 810 ℃, and carrying out centrifugal casting by the casting machine;
and 5: and (4) rapidly cooling after casting and cooling, and automatically grabbing the rotor core through a manipulator after cooling to obtain the squirrel cage rotor.
Furthermore, the temperature of the intermediate frequency heating channel in the step 2 is controlled at 350-450 ℃.
The casting equipment comprises a base, wherein a lower die intermittent rotating assembly is arranged at the middle end of the top of the base and comprises an intermittent rotating assembly, a centrifugal lower die structure and an installation barrel, the installation barrel is connected with the base and is connected with the intermittent rotating assembly, the intermittent rotating assembly is provided with the centrifugal lower die structure at equal intervals along the circumferential direction, the intermittent rotating assembly intermittently pushes the centrifugal lower die structure to rotate, and the centrifugal lower die structure sequentially rotates at a casting station, a cooling station, an unloading station, an oiling station, a feeding station and a pressing station;
a coating liquid spraying assembly for spraying coating liquid is arranged at the top of the mounting cylinder;
the base is equipped with the mould subassembly in casting station department, go up the mould subassembly and realize centrifugal casting with the centrifugal lower mould structure cooperation of casting station department.
Furthermore, the intermittent type rotation assembly includes a rotation cylinder, a first driving motor, a worm and a worm wheel, the rotation cylinder is rotatably connected with the outer side of the installation cylinder through a bearing, the worm wheel is fixed at the lower end of the outer wall of the rotation cylinder, the first driving motor is installed at the top of the base, and the output end of the first driving motor is fixedly connected with the worm which is matched with the worm wheel for use.
Furthermore, the centrifugal lower die structure comprises a second driving motor, a first bevel gear, a second bevel gear, a compression switch, a supporting cylinder, a first connecting shaft, an inclined guide groove, a pushing plate, a lower die, a Z-shaped seat, a lower die mounting sleeve and an electric slip ring, wherein the second driving motor and the supporting cylinder are mounted at the transverse part of the lower end of the Z-shaped seat, the first bevel gear is fixed at the output end of the second driving motor, the second bevel gear is connected with the first bevel gear in a meshing manner, the lower end of the first connecting shaft is mounted in a mounting hole of the second bevel gear, the supporting cylinder is rotatably connected with the first connecting shaft through a plurality of groups of bearings, the lower die mounting sleeve is fixed at the upper end of the first connecting shaft, the lower die is mounted at the inner bottom of the lower die mounting sleeve, the pushing plate is fixed at equal intervals along the circumferential direction outside of the lower die mounting sleeve, the inclined guide groove is formed at the top of the upright part of the pushing plate, the base is rotatably connected with the lower end of the Z-shaped seat through a bearing, the Z-shaped seat is arranged at the top of the rotating cylinder at equal intervals along the circumferential direction, a compression switch is fixed on the outer wall of the supporting cylinder and electrically connected with a second driving motor and an electric slip ring, the inner ring of the electric slip ring is arranged on the outer wall of the mounting cylinder, and the outer ring of the electric slip ring is arranged on the inner wall of the rotating cylinder.
Furthermore, the coating liquid spraying assembly comprises a reciprocating rotating assembly and a spraying assembly, the reciprocating rotating assembly is connected with the mounting cylinder, the reciprocating rotating assembly is connected with the spraying assembly, and the reciprocating rotating assembly drives the spraying assembly to rotate to a spraying station and a casting station to spray the coating liquid.
Further, reciprocating type rotating assembly includes mounting panel, second connecting axle, ring gear, first promotion subassembly and pinion rack, the installation section of thick bamboo top is rotated through the bearing and is connected with the second connecting axle, second connecting axle lower extreme is fixed with the ring gear, second connecting axle top is fixed with the mounting panel, first promotion subassembly is installed in the installation section of thick bamboo top, first promotion subassembly output is fixed with the pinion rack that uses with the ring gear cooperation.
Furthermore, the spraying assembly comprises a lower spray head, an upper spray head, a liquid distribution pipe, a three-way pipe, a sealing bearing and a liquid inlet pipe, wherein the sealing bearing is installed on the inner wall of the second connecting shaft, the liquid inlet pipe is fixedly connected with the inner ring of the sealing bearing, the liquid inlet pipe is connected with a power covering liquid source, the top of the sealing bearing is connected with one end of the three-way pipe, two ends of the three-way pipe are connected with the liquid distribution pipe, the outer end of the liquid distribution pipe is respectively connected with the lower spray head and the upper spray head, the lower spray head is installed at the bottom of one end of the mounting plate, the spraying end of the lower spray head is arranged above a spraying station during spraying, the upper spray head is installed at the top of the other end of the mounting plate, and the spraying end of the mounting plate is arranged on a casting station during spraying.
Further, go up the mould subassembly and include that the second promotes subassembly, mounting bracket, horizontal mounting bracket, go up mould and connecting plate, the mounting bracket is installed in the base lateral wall, the mounting bracket top is fixed with the second and promotes the subassembly, the flexible end of second promotion subassembly is fixed with horizontal mounting bracket, install the last mould that uses with the bed die cooperation in the mounting hole of horizontal mounting bracket, it is fixed with the connecting plate that uses with the slurcam cooperation to go up the mould outer wall along the circumferencial direction.
Furthermore, the vertical position of mounting bracket is equipped with the promotion subassembly, the promotion subassembly includes catch bar and third promotion subassembly, third promotion subassembly is installed in the mounting bracket inner wall, the telescopic end of third promotion subassembly is fixed with the catch bar, catch bar and hold-down switch opposition set up when centrifugal lower die structure rotates to the casting station, the third promotion subassembly compresses tightly hold-down switch through the catch bar, realizes that centrifugal lower die structure rotates centrifugally.
The beneficial effects of the invention are:
after the centrifugal casting is adopted, the mold is simple in structure, and the product is simple to replace; the production steps can be reduced after centrifugation is adopted, so that the skill requirement on operators is reduced. The production efficiency is improved by 15%; the filling density of the aluminum liquid is improved, and the consistency of the quality of the product is ensured.
According to the invention, the lower die intermittent rotating assembly intermittently pushes the centrifugal lower die structure to rotate, and the centrifugal lower die structure sequentially rotates at the casting station, the cooling station, the unloading station, the oiling station, the loading station and the pressing station, so that the centrifugal lower die structure is convenient to continuously operate and is not beneficial to continuous production of enterprises;
according to the centrifugal casting device, the upper die assembly conveniently drives the upper die to move downwards to be in contact with the lower die in a fitting manner, the lower die drives the upper die to rotate through the matching of the pushing plate and the connecting plate, and the lower die rotating centrifugally is matched with the upper die to realize centrifugal casting treatment, so that the centrifugal casting is facilitated.
The coating liquid spraying assembly of the invention is convenient for spraying the coating liquid on the lower die and the upper die, effectively prevents the aluminum liquid from being adhered in the lower die and the upper die, and improves the fluidity of the aluminum liquid;
the pushing assembly is convenient for electrifying the centrifugal lower die structure at the casting station without manual operation;
according to the invention, when the upper die assembly drives the upper die to contact with the lower die, the upper die assembly drives the compressing assembly to move downwards, the bottom of the compressing assembly contacts with the top of the rotor core above the pressing station, and the rotor core is pressed on the lower die at the pressing station, so that the rotor core can be arranged in the lower die according to the set requirement.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a structural elevation view of the present invention;
FIG. 3 is a top view of the structure of the present invention;
FIG. 4 is a perspective view of the present invention
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;
FIG. 6 is a schematic view of the upper mold assembly and its connection structure of the present invention;
FIG. 7 is a schematic structural view of a coating liquid spraying set according to the present invention;
FIG. 8 is a structural diagram of a centrifugal lower die of the present invention;
fig. 9 is an enlarged view of the structure at B in fig. 5.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the automatic feeding device comprises a base 11, a first straight hole 2, an intermittent rotating assembly 21, a rotating cylinder 22, a first driving motor 23, a worm 24, a worm wheel 3, a centrifugal lower die structure 31, a second driving motor 32, a first bevel gear 33, a second bevel gear 34, a pressing switch 35, a supporting cylinder 36, a first connecting shaft 37, a slant guiding groove 38, a pushing plate 39, a lower die 310, a Z-shaped seat 311, a lower die mounting sleeve 312, an electric slip ring 4, a coated liquid spraying assembly 41, a lower nozzle 42, a mounting plate 43, a second connecting shaft 44, an upper nozzle 45, a gear ring 46, a first pushing assembly 47, a toothed plate 48, a liquid distribution pipe 49, a three-way pipe 410, a sealing bearing 411, a liquid inlet pipe 5, a mounting cylinder 51, a second straight hole 6, a pressing assembly 61, a pressing ring 62, a connecting rod 7, an upper die assembly 71, a second pushing assembly 72, a mounting frame 73, a horizontal mounting frame 74 and an upper die 75. Connecting plate 8, pushing assembly 81, pushing rod 82 and third pushing assembly.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be further described with reference to the following examples.
Example 1
A casting process of a squirrel cage rotor comprises the following specific steps:
step 1: placing the rotor iron core on a tray of a conveying chain in a direction;
step 2: conveying the rotor iron core to a medium-frequency heating channel by a conveying chain, controlling the temperature of the medium-frequency heating channel at 450 ℃, and preheating the rotor iron core by the medium-frequency heating channel;
and step 3: the manipulator automatically picks the preheated rotor core and sends the rotor core into a casting machine, and the casting machine sprays a coating agent;
and 4, step 4: casting aluminum liquid into a casting machine, controlling the temperature of the aluminum liquid to be 790 ℃, and carrying out centrifugal casting by the casting machine;
and 5: and (4) rapidly cooling after casting and cooling, and automatically grabbing the rotor core through a manipulator after cooling to obtain the squirrel cage rotor.
Example 2
Example 2 is a further modification to example 1.
A casting process of a squirrel cage rotor comprises the following specific steps:
step 1: placing the rotor iron core on a tray of a conveying chain in a direction;
step 2: conveying the rotor iron core to a medium-frequency heating channel by a conveying chain, controlling the temperature of the medium-frequency heating channel to be 350 ℃, and preheating the rotor iron core by the medium-frequency heating channel;
and step 3: the manipulator automatically picks the preheated rotor core and sends the rotor core into a casting machine, and the casting machine sprays a coating agent;
and 4, step 4: casting aluminum liquid into a casting machine, controlling the temperature of the aluminum liquid at 810 ℃, and carrying out centrifugal casting by the casting machine;
and 5: and (4) rapidly cooling after casting and cooling, and automatically grabbing the rotor core through a manipulator after cooling to obtain the squirrel cage rotor.
After the centrifugal casting is adopted, the mold is simple in structure, and the product is simple to replace; the production steps can be reduced after centrifugation is adopted, so that the skill requirement on operators is reduced. The production efficiency is improved by 15%; the filling density of the aluminum liquid is improved, and the consistency of the quality of the product is ensured.
Example 3
Example 3 is a further modification to example 1.
As shown in figures 1, 2, 3, 4, 5, 6, 7, 8 and 9,
the casting equipment for the squirrel cage rotor casting process comprises a base 1, wherein a lower die intermittent rotating assembly is arranged at the middle end of the top of the base 1 and comprises an intermittent rotating assembly 2, a centrifugal lower die structure 3 and an installation barrel 5, the installation barrel 5 is connected with the base 1, the installation barrel 5 is connected with the intermittent rotating assembly 2, the intermittent rotating assembly 2 is provided with centrifugal lower die structures 3 at equal intervals along the circumferential direction, the intermittent rotating assembly 2 intermittently pushes the centrifugal lower die structures 3 to rotate, and the centrifugal lower die structures 3 sequentially rotate at a casting station, a cooling station, an unloading station, an oiling station, a feeding station and a pressing station;
the intermittent rotating assembly 2 comprises a rotating cylinder 21, a first driving motor 22, a worm 23 and a worm wheel 24, the rotating cylinder 21 is rotatably connected with the outer side of the mounting cylinder 5 through a bearing, the worm wheel 24 is fixed at the lower end of the outer wall of the rotating cylinder 21, the first driving motor 22 is mounted at the top of the base 1, and the output end of the first driving motor 22 is fixedly connected with the worm 23 matched with the worm wheel 24 for use;
the centrifugal lower die structure 3 comprises a second driving motor 31, a first bevel gear 32, a second bevel gear 33, a pressure switch 34, a supporting cylinder 35, a first connecting shaft 36, an inclined guide groove 37, a pushing plate 38, a lower die 39, a Z-shaped seat 310, a lower die mounting sleeve 311 and an electric slip ring 312, wherein the second driving motor 31 and the supporting cylinder 35 are installed at the transverse part of the lower end of the Z-shaped seat 310, the first bevel gear 32 is fixed at the output end of the second driving motor 31, the second bevel gear 33 is connected with the first bevel gear 32 in a meshing way, the lower end of the first connecting shaft 36 is installed in a mounting hole of the second bevel gear 33, the supporting cylinder 35 is rotatably connected with the first connecting shaft 36 through a plurality of groups of bearings, the lower die mounting sleeve 311 is fixed at the upper end of the first connecting shaft 36, the lower die 39 is installed at the bottom in the lower die mounting sleeve 311, the pushing plate 38 is fixed at equal intervals along the circumferential direction outside the lower die mounting sleeve 311, the inclined guide groove 37 is formed at the top of the upright part of the pushing plate 38, the base 1 is rotatably connected with the lower end of a Z-shaped seat 310 through a bearing, the Z-shaped seat 310 is arranged at the top of the rotating cylinder 21 at equal intervals along the circumferential direction, a compression switch 34 is fixed on the outer wall of a supporting cylinder 35, the compression switch 34 is electrically connected with a second driving motor 31 and an electric slip ring 312, the inner ring of the electric slip ring 312 is arranged on the outer wall of the mounting cylinder 5, and the outer ring of the electric slip ring 312 is arranged on the inner wall of the rotating cylinder 21;
the lower die intermittent rotating assembly intermittently pushes the centrifugal lower die structure 3 to rotate, and the centrifugal lower die structure 3 sequentially rotates at a casting station, a cooling station, an unloading station, an oiling station, a feeding station and a pressing station, so that the centrifugal lower die structure 3 is convenient to continuously operate and is not beneficial to continuous production of enterprises;
the top of the mounting cylinder 5 is provided with a coating liquid spraying component 4 for spraying the coating liquid;
the coating liquid spraying component 4 comprises a reciprocating rotating component and a spraying component, the reciprocating rotating component is connected with the mounting cylinder 5, the reciprocating rotating component is connected with the spraying component, and the reciprocating rotating component drives the spraying component to rotate to a spraying station and a casting station to spray coating liquid;
the reciprocating type rotating assembly comprises a mounting plate 42, a second connecting shaft 43, a gear ring 45, a first pushing assembly 46 and a toothed plate 47, the top of the mounting cylinder 5 is rotatably connected with the second connecting shaft 43 through a bearing, the gear ring 45 is fixed at the lower end of the second connecting shaft 43, the mounting plate 42 is fixed at the top of the second connecting shaft 43, the first pushing assembly 46 is mounted at the top of the mounting cylinder 5, and the toothed plate 47 matched with the gear ring 45 for use is fixed at the output end of the first pushing assembly 46;
the spraying component comprises a lower spray head 41, an upper spray head 44, a liquid distribution pipe 48, a three-way pipe 49, a sealing bearing 410 and a liquid inlet pipe 411, the sealing bearing 410 is installed on the inner wall of the second connecting shaft 43, the inner ring of the sealing bearing 410 is fixedly connected with the liquid inlet pipe 411, the liquid inlet pipe 411 is connected with a power coating liquid source, the top of the sealing bearing 410 is connected with one end of the three-way pipe 49, two ends of the three-way pipe 49 are connected with the liquid distribution pipe 48, the outer end of the liquid distribution pipe 48 is respectively connected with the lower spray head 41 and the upper spray head 44, the lower spray head 41 is installed at the bottom of one end of the mounting plate 42, the spraying end of the lower spray head 41 is arranged above a spraying station during spraying, the upper spray head 44 is installed at the top of the other end of the mounting plate 42, and the spraying end of the mounting plate 42 is arranged on a casting station during spraying;
the coating liquid spraying assembly 4 is convenient for spraying the coating liquid on the lower die 39 and the upper die 74, effectively prevents the aluminum liquid from being adhered in the lower die 39 and the upper die 74, and improves the fluidity of the aluminum liquid.
An upper die assembly 7 is arranged at a casting station of the base 1, and the upper die assembly 7 is matched with the centrifugal lower die structure 3 at the casting station to realize centrifugal casting;
the upper die assembly 7 comprises a second pushing assembly 71, a mounting frame 72, a transverse mounting frame 73, an upper die 74 and a connecting plate 75, the mounting frame 72 is mounted on the side wall of the base 1, the second pushing assembly 71 is fixed at the top of the mounting frame 72, the transverse mounting frame 73 is fixed at the telescopic end of the second pushing assembly 71, the upper die 74 matched with the lower die 39 for use is mounted in a mounting hole of the transverse mounting frame 73, and the connecting plate 75 matched with the pushing plate 38 for use is fixed on the outer wall of the upper die 74 along the circumferential direction;
go up mould subassembly 7 and conveniently drive and go up mould 74 and move down to laminating contact with bed die 39, bed die 39 passes through catch plate 38 and connecting plate 75 cooperation and drives and go up mould 74 and rotate, and centrifugal casting is handled with last mould 74 cooperation realization centrifugal casting to centrifugal pivoted bed die 39, does benefit to centrifugal casting.
A pushing assembly 8 is arranged at the vertical position of the mounting frame 72, the pushing assembly 8 comprises a pushing rod 81 and a third pushing assembly 82, the third pushing assembly 82 is arranged on the inner wall of the mounting frame 72, the pushing rod 81 is fixed at the telescopic end of the third pushing assembly 82, the pushing rod 81 is arranged opposite to the pressing switch 34 when the centrifugal lower die structure 3 rotates to a casting station, and the third pushing assembly 82 presses the pressing switch 34 through the pushing rod 81 to realize the rotation centrifugation of the centrifugal lower die structure 3;
the pushing assembly 8 is convenient for electrifying the centrifugal lower die structure 3 at the casting station without manual operation.
Horizontal mounting bracket 73 lateral wall is fixed with compresses tightly subassembly 6, compresses tightly subassembly 6 and includes clamp ring 61 and connecting rod 62, and connecting rod 62 is installed on horizontal mounting bracket 73 lateral wall, and the clamp ring 61 is fixed to the connecting rod 62 outer end, and clamp ring 61 is located and is pushed down the station top, and clamp ring 61 bottom and the rotor core top contact of pushing down the station top when bed die 39 and last mould 74 laminating contact.
Go up mould subassembly 7 and drive when mould 74 and bed die 39 contact time and go up mould subassembly 7 and drive and compress tightly subassembly 6 and move down, compress tightly the rotor core top contact of subassembly 6 bottom and the station top of pushing down, press the bed die 39 of rotor core department at the station of pushing down, do benefit to the rotor core and set up in bed die 39 according to setting for the requirement.
First straight hole 11 has been seted up to base 1 bottom, and the cable of the inner ring connection of electrical slip ring 312 and feed liquor pipe 411 locate first straight hole 11 in, and second straight hole 51 has been seted up to installation section of thick bamboo 5 top middle-end department, and the second straight hole 51 is located to feed liquor pipe 411 upper end.
The first pushing assembly 46, the second pushing assembly 71 and the third pushing assembly 82 are electric push rods, air cylinders or hydraulic cylinders.
When the device is used, the first driving motor 22 of the intermittent rotating assembly 2 of the lower die intermittent rotating assembly drives the worm 23 to rotate, the worm 23 drives the rotating cylinder 21 to intermittently rotate through the worm wheel 24, the rotating cylinder 21 intermittently pushes the centrifugal lower die structure 3 to rotate, and the centrifugal lower die structure 3 sequentially rotates at a casting station, a cooling station, an unloading station, an oiling station, a feeding station and a pressing station, so that the centrifugal lower die structure 3 is convenient to continuously operate and is not beneficial to continuous production of enterprises;
then the first pushing assembly 46 drives the toothed plate 47 to move, the toothed plate 47 drives the toothed ring 45 to rotate, the toothed ring 45 drives the second connecting shaft 43 to rotate, the second connecting shaft 43 drives the mounting plate 42 to rotate, the mounting plate 42 drives the lower spray head 41 and the mounting plate 42 to rotate, the lower spray head 41 and the upper spray head 44 rotate to the oiling station and the casting station, the lower spray head 41 pushes the lower die 39 of the oiling station to spray coating liquid, the upper spray head 44 sprays coating liquid on the upper die 74 of the casting station, then the first pushing assembly 46 drives the lower spray head 41 to move, the toothed plate 47 drives the toothed ring 45 to rotate, the toothed ring 45 drives the second connecting shaft 43 to rotate, the second connecting shaft 43 drives the mounting plate 42 to rotate, the mounting plate 42 drives the lower spray head 41 and the upper spray head 44 to rotate to be staggered with the oiling station and the casting station, and the coating liquid spraying assembly 4 facilitates the coating liquid on the lower die 39 and the upper die 74, the aluminum liquid is effectively prevented from being adhered in the lower die 39 and the upper die 74, and the fluidity of the aluminum liquid is improved; the second pushing assembly 71 of the upper mold assembly 7 drives the transverse mounting frame 73 to move downwards, the transverse mounting frame 73 drives the upper mold 74 to move downwards, the transverse mounting frame 73 drives the connecting plate 75 to move downwards, the connecting plate 75 moves to the upright position of the pushing plate 38 through the inclined guide groove 37 in a matching manner, so that the upper mold 74 is conveniently driven to move downwards to be in contact with the lower mold 39, the third pushing assembly 82 of the pushing assembly 8 drives the pushing rod 81 to move, the pushing rod 81 moves to be in contact with the pressing switch 34, the pressing switch 34 pushes the second driving motor 31 to start, so that the centrifugal lower mold structure 3 at the casting station is conveniently electrified without manual operation, the second driving motor 31 drives the first bevel gear 32 to rotate, the first bevel gear 32 drives the second bevel gear 33 to rotate, the second bevel gear 33 drives the first connecting shaft 36 to rotate, the first connecting shaft 36 drives the lower mold mounting sleeve 311 to rotate, and the lower mold mounting sleeve 311 drives the lower mold 39 to rotate, the lower die 39 is matched with the connecting plate 75 through the pushing plate 38 to drive the upper die 74 to rotate, and the centrifugal casting treatment is realized through the matching of the lower die 39 and the upper die 74 which rotate centrifugally, so that the centrifugal casting treatment is facilitated
The cooling station is used for rapidly cooling, the unloading station is communicated with a manipulator for unloading, and the loading station is used for loading through the manipulator;
meanwhile, at the pressing station, when the upper die assembly 7 drives the upper die 74 to contact with the lower die 39, the upper die assembly 7 drives the pressing assembly 6 to move downwards, the bottom of the pressing assembly 6 contacts with the top of the rotor core above the pressing station, the rotor core is pressed on the lower die 39 at the pressing station, and the rotor core is favorably arranged in the lower die 39 according to the set requirement.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A casting process of a squirrel cage rotor is characterized by comprising the following steps: the method comprises the following specific steps:
step 1: placing the rotor iron core on a tray of a conveying chain in a direction;
step 2: the rotor iron core is conveyed into the medium-frequency heating channel by the conveying chain, and the medium-frequency heating channel carries out preheating treatment on the rotor iron core;
and step 3: the manipulator automatically picks the preheated rotor core and sends the rotor core into a casting machine, and the casting machine sprays a coating agent;
and 4, step 4: casting aluminum liquid into a casting machine, controlling the temperature of the aluminum liquid at 790 ℃ and 810 ℃, and carrying out centrifugal casting by the casting machine;
and 5: and (4) rapidly cooling after casting and cooling, and automatically grabbing the rotor core through a manipulator after cooling to obtain the squirrel cage rotor.
2. Casting equipment for a squirrel cage rotor casting process according to claim 1, characterized in that: the temperature of the intermediate frequency heating channel in the step 2 is controlled at 350-450 ℃.
3. Casting equipment using a casting process of squirrel cage rotors according to any of claims 1 to 2, comprising a base (1), characterized in that: the middle end of the top of the base (1) is provided with a lower die intermittent rotating assembly, the lower die intermittent rotating assembly comprises an intermittent rotating assembly (2), a centrifugal lower die structure (3) and an installation barrel (5), the installation barrel (5) is connected with the base (1), the installation barrel (5) is connected with the intermittent rotating assembly (2), the intermittent rotating assembly (2) is provided with centrifugal lower die structures (3) at equal intervals along the circumferential direction, the intermittent rotating assembly (2) intermittently pushes the centrifugal lower die structure (3) to rotate, and the centrifugal lower die structure (3) sequentially rotates at a casting station, a cooling station, an unloading station, an oiling station, a feeding station and a pressing station;
a coating liquid spraying assembly (4) for spraying coating liquid is arranged at the top of the mounting cylinder (5);
the base (1) is equipped with mould subassembly (7) in casting station department, mould subassembly (7) and the centrifugal lower mould structure (3) cooperation realization centrifugal casting of casting station department.
4. The casting equipment of the squirrel cage rotor casting process as claimed in claim 3, wherein: intermittent type runner assembly (2) are including rotating a section of thick bamboo (21), first driving motor (22), worm (23) and worm wheel (24), it is connected with installation section of thick bamboo (5) outside rotation through the bearing to rotate a section of thick bamboo (21), it is fixed with worm wheel (24) to rotate a section of thick bamboo (21) outer wall lower extreme, first driving motor (22) are installed in base (1) top, first driving motor (22) output fixedly connected with and worm wheel (24) cooperation worm (23) of using.
5. The casting equipment of the squirrel cage rotor casting process as claimed in claim 4, wherein: the centrifugal lower die structure (3) comprises a second driving motor (31), a first bevel gear (32), a second bevel gear (33), a compression switch (34), a supporting cylinder (35), a first connecting shaft (36), an inclined guide groove (37), a pushing plate (38), a lower die (39), a Z-shaped seat (310), a lower die mounting sleeve (311) and an electric slip ring (312), wherein the second driving motor (31) and the supporting cylinder (35) are installed at the transverse part of the lower end of the Z-shaped seat (310), the first bevel gear (32) is fixed at the output end of the second driving motor (31), the first bevel gear (32) is in meshing connection with the second bevel gear (33), the lower end of the first connecting shaft (36) is installed in a mounting hole of the second bevel gear (33), the supporting cylinder (35) is rotationally connected with the first connecting shaft (36) through a plurality of groups of bearings, the lower die mounting sleeve (311) is fixed at the upper end of the first connecting shaft (36), the lower die (39) is installed at the bottom in the lower die installation sleeve (311), a pushing plate (38) is fixed to the outer side of the lower die installation sleeve (311) at equal intervals along the circumferential direction, an inclined guide groove (37) is formed in the top of the upright position of the pushing plate (38), the base (1) is rotatably connected with the lower end of a Z-shaped seat (310) through a bearing, the Z-shaped seat (310) is arranged at the top of a rotating cylinder (21) at equal intervals along the circumferential direction, a compression switch (34) is fixed to the outer wall of a supporting cylinder (35), the compression switch (34) is electrically connected with a second driving motor (31) and an electric slip ring (312), the inner ring of the electric slip ring (312) is installed on the outer wall of the installation cylinder (5), and the outer ring of the electric slip ring (312) is installed on the inner wall of the rotating cylinder (21).
6. The casting equipment of the squirrel cage rotor casting process as claimed in claim 5, wherein: the coating liquid spraying assembly (4) comprises a reciprocating rotating assembly and a spraying assembly, the reciprocating rotating assembly is connected with the installation cylinder (5), the reciprocating rotating assembly is connected with the spraying assembly, and the reciprocating rotating assembly drives the spraying assembly to rotate to a spraying station and a casting station to spray coating liquid.
7. The casting equipment of the squirrel-cage rotor casting process according to claim 6, wherein: reciprocating type rotating assembly includes mounting panel (42), second connecting axle (43), ring gear (45), first promotion subassembly (46) and pinion rack (47), installation section of thick bamboo (5) top is rotated through the bearing and is connected with second connecting axle (43), second connecting axle (43) lower extreme is fixed with ring gear (45), second connecting axle (43) top is fixed with mounting panel (42), first promotion subassembly (46) are installed at installation section of thick bamboo (5) top, first promotion subassembly (46) output is fixed with pinion rack (47) with ring gear (45) cooperation use.
8. The casting equipment of the squirrel cage rotor casting process as claimed in claim 7, wherein: the spraying component comprises a lower spray head (41), an upper spray head (44), a liquid distribution pipe (48), a three-way pipe (49), a sealing bearing (410) and a liquid inlet pipe (411), the sealing bearing (410) is arranged on the inner wall of the second connecting shaft (43), the inner ring of the sealing bearing (410) is fixedly connected with a liquid inlet pipe (411), the liquid inlet pipe (411) is connected with a power coating liquid source, the top of the sealing bearing (410) is connected with one end of a three-way pipe (49), two ends of the three-way pipe (49) are connected with a liquid distribution pipe (48), the outer end of the liquid distribution pipe (48) is respectively connected with a lower spray head (41) and an upper spray head (44), the lower spray head (41) is arranged at the bottom of one end of the mounting plate (42), the spraying end of the lower spray head (41) is arranged above the spraying station during spraying, the upper spray head (44) is arranged at the top of the other end of the mounting plate (42), and the spraying end of the mounting plate (42) is arranged on the casting station during spraying.
9. The casting equipment of the squirrel cage rotor casting process as claimed in claim 8, wherein: go up mould subassembly (7) and include that second promotes subassembly (71), mounting bracket (72), violently mounting bracket (73), go up mould (74) and connecting plate (75), mounting bracket (72) are installed in base (1) lateral wall, mounting bracket (72) top is fixed with second and promotes subassembly (71), second promotes subassembly (71) flexible end and is fixed with violently mounting bracket (73), install in the mounting hole of violently mounting bracket (73) and cooperate last mould (74) of using with bed die (39), it is fixed with connecting plate (75) with pushing plate (38) cooperation use to go up mould (74) outer wall along the circumferencial direction.
10. The casting equipment of the squirrel cage rotor casting process as claimed in claim 9, wherein: mounting bracket (72) upright position is equipped with promotion subassembly (8), promotion subassembly (8) are including catch bar (81) and third promotion subassembly (82), third promotion subassembly (82) are installed in mounting bracket (72) inner wall, third promotion subassembly (82) telescopic end is fixed with catch bar (81), catch bar (81) and compression switch (34) opposition set up when centrifugal lower die structure (3) rotate to the casting station, third promotion subassembly (82) compress tightly compression switch (34) through catch bar (81), realize centrifugal lower die structure (3) and rotate the centrifugation.
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| CN202210303922.4A CN114850435B (en) | 2022-03-25 | 2022-03-25 | Squirrel-cage rotor casting process and casting equipment |
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| CN202210303922.4A CN114850435B (en) | 2022-03-25 | 2022-03-25 | Squirrel-cage rotor casting process and casting equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118162592A (en) * | 2024-05-15 | 2024-06-11 | 山西福森诺智能装备科技有限公司 | Motor rotor aluminum casting device and use method thereof |
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| CN114850435B (en) | 2023-09-26 |
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