CN114850435B - Squirrel-cage rotor casting process and casting equipment - Google Patents
Squirrel-cage rotor casting process and casting equipment Download PDFInfo
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- CN114850435B CN114850435B CN202210303922.4A CN202210303922A CN114850435B CN 114850435 B CN114850435 B CN 114850435B CN 202210303922 A CN202210303922 A CN 202210303922A CN 114850435 B CN114850435 B CN 114850435B
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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
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- 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
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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
- B22D13/10—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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- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a squirrel cage rotor casting process and a casting device, which relate to the technical field of rotor casting, and specifically comprise the following steps: step 1: placing the rotor core on a tray of a conveying chain according to the direction; step 2: the conveying chain conveys the rotor core into an intermediate frequency heating channel, and the intermediate frequency heating channel performs preheating treatment on the rotor core; step 3: the manipulator automatically grabs the preheated rotor core and sends the preheated rotor core into a casting machine, and the casting machine sprays coating agent; step 4: casting aluminum liquid into a casting machine, controlling the temperature of the aluminum liquid to be 790-810 ℃, and performing centrifugal casting by the casting machine; step 5: rapidly cooling after casting and cooling, and automatically grabbing a rotor core through a manipulator after cooling to obtain a squirrel-cage rotor; through the mode, after centrifugal casting is adopted, the die is simple in structure and simple in product replacement; after centrifugation, the production steps can be reduced, thereby reducing the skill requirements for operators.
Description
Technical Field
The invention relates to the technical field of rotor casting, in particular to a squirrel cage rotor casting process and a squirrel cage rotor casting device.
Background
At present, aluminum casting of a squirrel-cage rotor is 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 production process of the horizontal cold chamber die casting is more, and the technical requirements on operators are higher;
3. the die casting quality of the horizontal cold chamber die casting mainly depends on the injection force and the injection speed of a 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 qualification rate.
Therefore, a squirrel cage rotor casting process and casting equipment are provided to solve the above problems.
Disclosure of Invention
The invention aims to provide a squirrel-cage rotor casting process and a squirrel-cage rotor casting device, which are used for solving the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a squirrel cage rotor casting process comprises the following specific steps:
step 1: placing the rotor core on a tray of a conveying chain according to the direction;
step 2: the conveying chain conveys the rotor core into an intermediate frequency heating channel, and the intermediate frequency heating channel performs preheating treatment on the rotor core;
step 3: the manipulator automatically grabs the preheated rotor core and sends the preheated rotor core into a casting machine, and the casting machine sprays coating agent;
step 4: casting aluminum liquid into a casting machine, controlling the temperature of the aluminum liquid to be 790-810 ℃, and performing centrifugal casting by the casting machine;
step 5: and (3) carrying out quick cooling after casting cooling, and automatically grabbing a rotor core through a mechanical arm after cooling to obtain the squirrel-cage rotor.
Further, the temperature of the medium-frequency heating channel in the step 2 is controlled to be 350-450 ℃.
The casting equipment of the squirrel-cage rotor casting process comprises a base, wherein a lower die intermittent rotating assembly is arranged at the middle end of the top of the base, the lower die intermittent rotating assembly comprises an intermittent rotating assembly, a centrifugal lower die structure and a mounting cylinder, the mounting cylinder is connected with the base, the mounting cylinder 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 rotates at a casting station, a cooling station, a discharging station, an oiling station, a feeding station and a pressing station in sequence;
the top of the mounting cylinder is provided with a coating liquid spraying component for coating liquid spraying;
the base is provided with an upper die assembly at the casting station, and the upper die assembly is matched with a centrifugal lower die structure at the casting station to realize centrifugal casting.
Still further, intermittent type rotates the subassembly including rotating section of thick bamboo, first driving motor, worm and worm wheel, rotating section of thick bamboo and the outside rotation of installation section of thick bamboo through the bearing and being connected, rotating section of thick bamboo outer wall lower extreme is fixed with the worm wheel, first driving motor installs in the base top, first driving motor output fixedly connected with and worm wheel cooperation use's worm.
Still further, centrifugal lower mould structure includes second driving motor, first bevel gear, second bevel gear, compression switch, support section of thick bamboo, first connecting axle, inclined guide groove, push plate, bed die, Z shape seat, lower mould installation cover and electric slip ring, second driving motor and support section of thick bamboo are installed at the horizontal position of Z shape seat lower extreme, second driving motor output is fixed with first bevel gear, first bevel gear meshing is connected with the second bevel gear, first connecting axle lower extreme is installed in the mounting hole of second bevel gear, support section of thick bamboo is connected with first connecting axle rotation through multiunit bearing, first connecting axle upper end is fixed with the lower mould installation cover, the bed die is installed to the lower mould installation cover bottom, the lower mould installation cover outside is equidistant to be fixed with the push plate along the circumferencial direction, inclined guide groove has been seted up at the straight position top of push plate, the base passes through the bearing and is connected with Z shape seat lower extreme rotation, Z shape seat is located a circumference equidistant motor top, support section of thick bamboo rotation, the compression switch is connected with the electric slip ring is located to the outer wall, the electric slip ring is installed to the outer wall in the outer wall is connected with the electric slip ring, the outer wall is installed to the outer ring is connected with the electric slip ring.
Still further, 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 coating liquid.
Still 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 connected with the second connecting axle through the bearing rotation, the 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 at the installation section of thick bamboo top, first promotion subassembly output is fixed with the pinion rack that uses with the ring gear cooperation.
Still further, the spraying subassembly includes shower nozzle down, goes up shower nozzle, divides liquid pipe, three-way pipe, sealed bearing and feed liquor pipe, sealed bearing installs in the second connecting axle inner wall, sealed bearing inner loop fixedly connected with feed liquor pipe, the feed liquor pipe is connected with power quilt liquid source, sealed bearing top is connected with three-way pipe one end, the three-way pipe both ends are connected with divides the liquid pipe, divide the liquid pipe outer end to be connected with shower nozzle and last shower nozzle respectively, the shower nozzle is installed in mounting panel one end bottom down, and shower nozzle spraying end is located spraying station top down in the spraying, go up the shower nozzle and install in mounting panel other end top, the mounting panel spraying end is located on the casting station during the spraying.
Still further, go up the module and include second pushing component, 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 pushing component 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 cooperation of flitch to go up the mould outer wall along the circumferencial direction.
Still further, the upright position of mounting bracket is equipped with the pushing component, the pushing component includes catch bar and third pushing component, third pushing component installs in the mounting bracket inner wall, the flexible end of third pushing component is fixed with the catch bar, the catch bar sets up with compression switch opposition when centrifugal lower mould structure rotates to the casting station, third pushing component compresses tightly compression switch through the catch bar, realizes centrifugal lower mould structure rotation centrifugation.
The beneficial effects of the invention are as follows:
after centrifugal casting is adopted, the die has a simple structure and simple product replacement; after centrifugation, the production steps can be reduced, thereby reducing the skill requirements for operators. 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.
The intermittent rotating assembly of the lower die intermittently pushes the centrifugal lower die structure to rotate, and the centrifugal lower die structure rotates in the casting station, the cooling station, the unloading station, the oiling station, the feeding station and the pressing station in sequence, so that the continuous operation of the centrifugal lower die structure is facilitated, and continuous production of enterprises is not facilitated;
the upper die assembly conveniently drives the upper die to move downwards to be in contact with the lower die, the lower die drives the upper die to rotate through the cooperation of the pushing plate and the connecting plate, and centrifugal casting treatment is realized through the cooperation of the centrifugally rotated lower die and the upper die, so that centrifugal casting is facilitated.
The coating liquid spraying assembly is convenient for spraying the coating liquid on the lower die and the upper die, effectively prevents the aluminum liquid from adhering in the lower die and the upper die, and improves the fluidity of the aluminum liquid;
the pushing component is convenient for electrifying the centrifugal lower die structure at the casting station, and manual operation is not needed;
when the upper die assembly drives the upper die to contact with the lower die, the upper die assembly drives the pressing assembly to move downwards, the bottom of the pressing 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 is arranged in the lower die according to set requirements.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of 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 invention, 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 perspective view of a structure of the present invention;
FIG. 2 is a front elevational view of the structure of the present invention;
FIG. 3 is a top plan view of the structure of the present invention;
FIG. 4 is a perspective view of a structure according to the present invention
FIG. 5 is a cross-sectional view taken along the line A-A of FIG. 2 of the present invention;
FIG. 6 is a schematic view of an upper module and a connection structure thereof according to the present invention;
FIG. 7 is a schematic view of a coating liquid spraying set according to the present invention;
FIG. 8 is a schematic structural view of a centrifugal lower die of the present invention;
fig. 9 is an enlarged schematic view of the structure at B of fig. 5.
In the drawings, the list of components represented by the various numbers is as follows:
1. base 11, intermittent rotary assembly 21, rotary barrel 22, first drive motor 23, worm gear 3, centrifugal lower die structure 31, second drive motor 32, first bevel gear 33, second bevel gear 34, compression switch 35, support barrel 36, first connecting shaft 37, diagonal guide slot 38, push plate 39, lower die 310, z-shaped seat 311, lower die mounting sleeve 312, electrical slip ring 4, liquid spray assembly 41, lower spray head 42, mounting plate 43, second connecting shaft 44, upper spray head 45, gear ring 46, first push assembly 47, tooth plate 48, liquid distributor 49, tee 410, sealing bearing 411, feed tube 5, mounting barrel 51, second straight bore 6, compression assembly 61, compression ring 62, connecting rod 7, upper die assembly 71, second push assembly 72, mounting bracket 73, transverse bracket 74, upper die 75, connecting plate 8, push assembly 81, push rod 82, and third push assembly.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention is further described below with reference to examples.
Example 1
A squirrel cage rotor casting process comprises the following specific steps:
step 1: placing the rotor core on a tray of a conveying chain according to the direction;
step 2: the conveying chain conveys the rotor core into an intermediate frequency heating channel, the temperature of the intermediate frequency heating channel is controlled to be 450 ℃, and the intermediate frequency heating channel carries out preheating treatment on the rotor core;
step 3: the manipulator automatically grabs the preheated rotor core and sends the preheated rotor core into a casting machine, and the casting machine sprays coating agent;
step 4: casting aluminum liquid into a casting machine, controlling the temperature of the aluminum liquid to 790 ℃, and performing centrifugal casting by the casting machine;
step 5: and (3) carrying out quick cooling after casting cooling, and automatically grabbing a rotor core through a mechanical arm after cooling to obtain the squirrel-cage rotor.
Example 2
Example 2 is a further modification of example 1.
A squirrel cage rotor casting process comprises the following specific steps:
step 1: placing the rotor core on a tray of a conveying chain according to the direction;
step 2: the conveying chain conveys the rotor core into an intermediate frequency heating channel, the temperature of the intermediate frequency heating channel is controlled to be 350 ℃, and the intermediate frequency heating channel performs preheating treatment on the rotor core;
step 3: the manipulator automatically grabs the preheated rotor core and sends the preheated rotor core into a casting machine, and the casting machine sprays coating agent;
step 4: casting aluminum liquid into a casting machine, controlling the temperature of the aluminum liquid at 810 ℃, and performing centrifugal casting by the casting machine;
step 5: and (3) carrying out quick cooling after casting cooling, and automatically grabbing a rotor core through a mechanical arm after cooling to obtain the squirrel-cage rotor.
After centrifugal casting is adopted, the die has a simple structure and simple product replacement; after centrifugation, the production steps can be reduced, thereby reducing the skill requirements for operators. 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 of example 1.
As shown in figures 1, 2, 3, 4, 5, 6, 7, 8 and 9,
the casting equipment of 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, the lower die intermittent rotating assembly comprises an intermittent rotating assembly 2, a centrifugal lower die structure 3 and a mounting cylinder 5, the mounting cylinder 5 is connected with the base 1, the mounting cylinder 5 is connected with the intermittent rotating assembly 2, the intermittent rotating assembly 2 is provided with the centrifugal lower die structure 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 rotates at a casting station, a cooling station, a discharging station, an oiling station, a feeding station and a pressing station in sequence;
the intermittent rotating assembly 2 comprises a rotating cylinder 21, a first driving motor 22, a worm 23 and a worm wheel 24, wherein the rotating cylinder 21 is rotationally 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;
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 arranged at the transverse position of the lower end of the Z-shaped seat 310, the first bevel gear 32 is fixedly arranged at the output end of the second driving motor 31, the first bevel gear 32 is meshed and connected with the second bevel gear 33, the lower end of the first connecting shaft 36 is arranged 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 upper end of the first connecting shaft 36 is fixedly provided with the lower die mounting sleeve 311, the lower die 39 is arranged at the inner bottom of the lower die mounting sleeve 311, the pushing plate 38 is uniformly spaced along the circumferential direction, the top of the upright position of the pushing plate 38 is provided with the inclined guide groove 37, the base 1 is rotatably connected with the lower end of the Z-shaped seat 310 through a bearing, the Z-shaped seat 310 is rotatably arranged at the same interval along the circumferential direction, the top 21 is uniformly spaced along the circumferential direction, the electric slip ring 312 is fixedly arranged at the outer wall 21 of the inner wall 21 of the supporting cylinder 35, the electric slip ring is fixedly connected with the first connecting cylinder 35, the electric slip ring 312 is rotatably arranged on the outer wall 21, and the upper outer wall 21 is fixedly connected with the electric slip ring 312, and the upper connecting cylinder 35 is rotatably arranged at the upper end;
the lower die intermittent rotating assembly intermittently pushes the centrifugal lower die structure 3 to rotate, and the centrifugal lower die structure 3 rotates in the casting station, the cooling station, the unloading station, the oiling station, the feeding station and the pressing station in sequence, so that the centrifugal lower die structure 3 is convenient to continuously operate, and continuous production of enterprises is not facilitated;
the top of the mounting cylinder 5 is provided with a coating liquid spraying component 4 for coating liquid spraying;
the coating liquid spraying assembly 4 comprises a reciprocating rotating assembly and a spraying assembly, the reciprocating rotating assembly is connected with the mounting cylinder 5 and 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;
the reciprocating 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, wherein the top of the mounting cylinder 5 is rotationally 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 is fixed at the output end of the first pushing assembly 46;
the spraying assembly comprises a lower spray head 41, an upper spray head 44, a liquid separating pipe 48, a three-way pipe 49, a sealing bearing 410 and a liquid inlet pipe 411, wherein the sealing bearing 410 is arranged on the inner wall of the second connecting shaft 43, the liquid inlet pipe 411 is fixedly connected with the inner ring of the sealing bearing 410, 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, the two ends of the three-way pipe 49 are connected with the liquid separating pipe 48, the outer end of the liquid separating pipe 48 is respectively connected with the lower spray head 41 and the 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 a spraying station, 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 a casting station during spraying;
the coating liquid spraying assembly 4 conveniently sprays coating liquid on the lower die 39 and the upper die 74, effectively prevents aluminum liquid from adhering in the lower die 39 and the upper die 74, and improves the fluidity of the aluminum liquid.
The base 1 is provided with an upper die assembly 7 at a casting station, and the upper die assembly 7 is matched with a 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, wherein 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 is mounted in a mounting hole of the transverse mounting frame 73, and the connecting plate 75 matched with the pushing plate 38 is fixed on the outer wall of the upper die 74 along the circumferential direction;
the upper die assembly 7 conveniently drives the upper die 74 to move downwards to be in contact with the lower die 39, the lower die 39 drives the upper die 74 to rotate through the cooperation of the pushing plate 38 and the connecting plate 75, and centrifugal casting treatment is realized through the cooperation of the lower die 39 and the upper die 74 which are eccentrically rotated, so that centrifugal casting is facilitated.
The vertical part of the mounting frame 72 is provided with a pushing assembly 8, the pushing assembly 8 comprises a pushing rod 81 and a third pushing assembly 82, the third pushing assembly 82 is mounted 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 oppositely arranged with the compression switch 34 when the centrifugal lower die structure 3 rotates to a casting station, and the third pushing assembly 82 compresses the compression switch 34 through the pushing rod 81, so that the centrifugal lower die structure 3 rotates and is centrifuged;
the pushing component 8 facilitates the electrifying treatment of the centrifugal lower die structure 3 at the casting station without manual operation.
The lateral wall of the transverse installation frame 73 is fixed with a pressing component 6, the pressing component 6 comprises a pressing ring 61 and a connecting rod 62, the connecting rod 62 is installed on the lateral wall of the transverse installation frame 73, the outer end of the connecting rod 62 is fixed with the pressing ring 61, the pressing ring 61 is arranged above the pressing station, and the bottom of the pressing ring 61 is contacted with the top of the rotor core above the pressing station when the lower die 39 and the upper die 74 are in fit contact.
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, and the rotor core is pressed on the lower die 39 at the pressing station, so that the rotor core is arranged in the lower die 39 according to set requirements.
The first straight hole 11 has been seted up to base 1 bottom, and the cable and the feed liquor pipe 411 that the inner ring of electric sliding ring 312 is connected are located in the first straight hole 11, and second straight hole 51 has been seted up to installation section of thick bamboo 5 top middle-end department, and the feed liquor pipe 411 upper end is located in the second straight hole 51.
The first pushing component 46, the second pushing component 71 and the third pushing component 82 are electric push rods, air cylinders or hydraulic cylinders.
When the intermittent rotary die is used, the first driving motor 22 of the intermittent rotary component 2 of the intermittent rotary component of the lower die drives the worm 23 to rotate, the worm 23 drives the rotary cylinder 21 to intermittently rotate through the worm wheel 24, the rotary cylinder 21 intermittently pushes the centrifugal lower die structure 3 to rotate, and the centrifugal lower die structure 3 sequentially rotates at the casting station, the cooling station, the discharging station, the oiling station, the feeding station and the pressing station, so that the continuous operation of the centrifugal lower die structure 3 is facilitated, and continuous production of enterprises is not facilitated;
then the first pushing component 46 drives the toothed plate 47 to move, the toothed plate 47 drives the gear ring 45 to rotate, the gear 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 be in dislocation with 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 to the upper die 74 of the casting station, then the first pushing component 46 drives the toothed plate 47 to move, the toothed plate 47 drives the gear ring 45 to rotate, the gear 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, the lower spray head 41 and the upper spray head 44 are in dislocation with the oiling station and the casting station, the coating liquid spraying component 4 is convenient to spray coating liquid to the lower die 39 and the upper die 74, the aluminum liquid is effectively prevented from adhering in the lower die 39 and the upper die 74, and the fluidity of the aluminum liquid is improved; the second pushing component 71 of the upper die assembly 7 drives the horizontal mounting frame 73 to move downwards, the horizontal mounting frame 73 drives the upper die 74 to move downwards, the horizontal mounting frame 73 drives the connecting plate 75 to move downwards, the connecting plate 75 is matched to move to the vertical position of the pushing plate 38 through the inclined guide groove 37, the upper die 74 is conveniently driven to move downwards to be in contact with the lower die 39, the third pushing component 82 of the pushing component 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, the centrifugal lower die structure 3 at the casting station is conveniently electrified to be processed, manual operation is not needed, 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 die mounting sleeve 311 to rotate, the lower die mounting sleeve 311 drives the lower die 39 to rotate, the lower die 39 is matched to drive the upper die 74 to rotate through the pushing plate 38 and the connecting plate 75, and the centrifugally rotated lower die 39 and the upper die 74 are matched to realize centrifugal casting
The cooling station is used for rapidly cooling, the discharging station is used for discharging by a manipulator, and the feeding station is used for feeding by 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, and the rotor core is pressed on the lower die 39 at the pressing station, so that the rotor core is arranged in the lower die 39 according to set requirements.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 only to assist in the explanation of the invention. 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 understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (4)
1. The casting equipment of the squirrel-cage rotor casting process is characterized by comprising the following specific steps of:
step 1: placing the rotor core on a tray of a conveying chain according to the direction;
step 2: the conveying chain conveys the rotor core into an intermediate frequency heating channel, and the intermediate frequency heating channel performs preheating treatment on the rotor core; the temperature of the medium-frequency heating channel in the step 2 is controlled to be 350-450 ℃;
step 3: the manipulator automatically grabs the preheated rotor core and sends the preheated rotor core into a casting machine, and the casting machine sprays coating agent;
step 4: casting aluminum liquid into a casting machine, controlling the temperature of the aluminum liquid to be 790-810 ℃, and performing centrifugal casting by the casting machine;
step 5: rapidly cooling after casting and cooling, and automatically grabbing a rotor core through a manipulator after cooling to obtain a squirrel-cage rotor;
the casting equipment comprises a base (1), a lower die intermittent rotating assembly is arranged at the middle end of the top of the base (1), the lower die intermittent rotating assembly comprises an intermittent rotating assembly (2), a centrifugal lower die structure (3) and a mounting cylinder (5), the mounting cylinder (5) is connected with the base (1), the mounting cylinder (5) is connected with the intermittent rotating assembly (2), the intermittent rotating assembly (2) is provided with the centrifugal lower die structure (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, a discharging station, an oiling station, a feeding station and a pressing station;
a coating liquid spraying component (4) for coating liquid spraying is arranged at the top of the mounting cylinder (5);
an upper die assembly (7) is arranged at the casting station of the base (1), and the upper die assembly (7) is matched with a centrifugal lower die structure (3) at the casting station to realize centrifugal casting;
the intermittent rotating assembly (2) comprises a rotating cylinder (21), a first driving motor (22), a worm (23) and a worm wheel (24), wherein the rotating cylinder (21) is rotationally 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) which is matched with the worm wheel (24);
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 mounted at the transverse position of the lower end of the Z-shaped seat (310), a first bevel gear (32) is fixed at the output end of the second driving motor (31), the first bevel gear (32) is meshed and connected with the second bevel gear (33), the lower end of the first connecting shaft (36) is mounted 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 mounting sleeve (311) is mounted at the bottom of the lower die, the lower die (39) is mounted at the bottom of the lower die, the lower die (311) is fixedly provided with the inclined guide groove (38) along the circumference direction of the upper end of the second bevel gear (33), the lower die (38) is rotatably connected with the upper die (38) through the inclined guide groove, the Z-shaped seats (310) are 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 the 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 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), wherein 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;
the utility model discloses a centrifugal lower mould structure (3) is equipped with pushing component (8) in the position of standing up of mounting bracket (72), pushing component (8) are including push rod (81) and third pushing component (82), third pushing component (82) are installed in mounting bracket (72) inner wall, the flexible end of third pushing component (82) is fixed with push rod (81), push rod (81) and compression switch (34) opposite setting when centrifugal lower mould structure (3) rotate to the casting station, third pushing component (82) compress tightly compression switch (34) through push rod (81), realize centrifugal lower mould structure (3) rotation centrifugation.
2. A casting apparatus for a squirrel cage rotor casting process as defined in claim 1 wherein: the coating liquid spraying assembly (4) comprises a reciprocating rotating assembly and a spraying assembly, the reciprocating rotating assembly is connected with the mounting 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.
3. A casting apparatus for a squirrel cage rotor casting process according to claim 2, wherein: 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), wherein the second connecting shaft (43) is rotatably connected to the top of the mounting cylinder (5) through a bearing, the gear ring (45) is fixed to the lower end of the second connecting shaft (43), the mounting plate (42) is fixed to the top of the second connecting shaft (43), the first pushing assembly (46) is mounted on the top of the mounting cylinder (5), and the toothed plate (47) matched with the gear ring (45) is fixed to the output end of the first pushing assembly (46).
4. A casting apparatus for a squirrel cage rotor casting process according to claim 3, wherein: the spraying assembly 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), wherein the sealing bearing (410) is arranged on the inner wall of the second connecting shaft (43), the liquid inlet pipe (411) is fixedly connected with an inner ring of the sealing bearing (410), 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), the two ends of the three-way pipe (49) are connected with the liquid distribution pipe (48), the outer ends of the liquid distribution pipe (48) are respectively connected with the lower spray head (41) and the upper spray head (44), the lower spray head (41) is arranged at one end bottom of the mounting plate (42), the spraying end of the lower spray head (41) is arranged above a spraying station, 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.
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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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| CN118162592B (en) * | 2024-05-15 | 2024-07-23 | 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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| CN114850435A (en) | 2022-08-05 |
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