CN112065717B - Scroll compressor - Google Patents
Scroll compressor Download PDFInfo
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- CN112065717B CN112065717B CN202010993767.4A CN202010993767A CN112065717B CN 112065717 B CN112065717 B CN 112065717B CN 202010993767 A CN202010993767 A CN 202010993767A CN 112065717 B CN112065717 B CN 112065717B
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- movable door
- die
- aluminum alloy
- cavity
- scroll
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- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 87
- 238000002347 injection Methods 0.000 claims abstract description 63
- 239000007924 injection Substances 0.000 claims abstract description 63
- 239000007788 liquid Substances 0.000 claims abstract description 53
- 238000004512 die casting Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000003754 machining Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims description 70
- 230000000903 blocking effect Effects 0.000 claims description 43
- 230000007246 mechanism Effects 0.000 claims description 27
- 230000009471 action Effects 0.000 claims description 22
- 238000003825 pressing Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 238000007667 floating Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims 4
- 239000000463 material Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000007787 solid Substances 0.000 abstract description 4
- 238000007711 solidification Methods 0.000 abstract description 4
- 230000008023 solidification Effects 0.000 abstract description 4
- 238000005266 casting Methods 0.000 description 11
- 230000001174 ascending effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2272—Sprue channels
- B22D17/2281—Sprue channels closure devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/28—Melting pots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention belongs to the technical field of production and manufacture of scroll compressors, and particularly relates to a scroll compressor, which comprises a movable scroll plate, a fixed scroll plate, a motor, a shell and a cross slip ring, wherein the movable scroll plate is manufactured by adopting the following method: die-casting, namely injecting molten aluminum alloy into a die-casting die to prepare a movable scroll blank; machining, namely mounting a movable scroll blank on machining equipment to cut the side surface of the scroll plate and the end surface of the movable scroll to obtain the movable scroll; according to the invention, the movable doors are arranged in the injection cavity and the pouring gate, when the cavity is filled with molten aluminum alloy, the pouring gate is disconnected from the cavity by using the movable doors, the liquid discharge hole of the injection cavity is opened, and residual molten aluminum alloy liquid in the pouring gate is discharged from the pouring gate and the injection cavity before solidification, so that solid excess materials are prevented from appearing in the pouring gate, the subsequent excess material removing process is omitted, the production steps are simplified, and the processing efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of production and manufacturing of scroll compressors, and particularly relates to a scroll compressor.
Background
The main parts of the scroll compressor comprise a movable scroll and a fixed scroll, the compressor realizes the compression of air volume through the relative revolution of the movable scroll and the fixed scroll, wherein the movable scroll is generally made of cast aluminum materials, and because a scroll plate of the movable scroll is of a thin-wall scroll structure, the compression casting is generally adopted for producing in order to enable molten aluminum alloy to be full of a cavity during casting, and the casting process inevitably generates excess materials in a pouring gate. For the treatment of excess materials, in the prior art, either a machining mode is adopted to cut off the expectation after casting and forming, or a casting and a pouring gate are torn off when metal is not completely solidified in the casting process, the machining process of the casting is complicated, the production efficiency is low, and the casting can be deformed in the pulling process of the pouring gate, so that the casting quality is influenced.
Disclosure of Invention
The invention aims to provide a scroll compressor convenient to produce and process, wherein a movable scroll of the scroll compressor does not generate excess materials in the casting process, the processing flow can be simplified, and the processing efficiency can be improved.
The technical scheme adopted by the invention is as follows:
a scroll compressor comprises a movable scroll, a fixed scroll, a motor, a shell and a cross slip ring; the fixed scroll is fixedly connected with the shell, the movable scroll is rotationally connected with an eccentric shaft arranged on a motor spindle, the movable scroll is slidably connected with the shell in two mutually perpendicular directions through a cross slip ring, a scroll plate of the movable scroll is mutually inserted and combined with a scroll groove of the fixed scroll, and the movable scroll is manufactured by adopting the following method: die-casting, namely injecting molten aluminum alloy into a die-casting die to prepare a movable scroll blank; machining, namely mounting a movable scroll blank on machining equipment to cut the side surface of the scroll plate and the end surface of the movable scroll to obtain the movable scroll; die casting die is including the pressure chamber of annotating and the die cavity unanimous with the vortex dish blank shape that is used for holding the melting aluminum alloy, and the die cavity is through watering and annotating chamber upper end intercommunication, still is equipped with the outage on the pressure chamber of annotating, it is equipped with first dodge gate to water, the outage is equipped with the second dodge gate, is equipped with the piston that slides along vertical direction and set up in the pressure intracavity, be equipped with link gear between piston and first dodge gate and the second dodge gate, link gear is assembled to be: when the piston extrudes the molten aluminum alloy in the pressure injection cavity into the cavity, the first movable door is opened, the second movable door is closed, and when the piston extrudes the molten aluminum alloy in the pressure injection cavity into the cavity and the molten aluminum alloy is filled in the cavity, the first movable door is closed, the second movable door is opened, and at the moment, the residual molten aluminum alloy in the pressure injection cavity is discharged through the liquid discharge hole.
The die cavity comprises last mould and lower mould, is equipped with half section type groove on last mould and the lower mould respectively, and two half section type grooves enclose jointly when going up mould and lower mould and synthesizing the die cavity, the lower mould is even as an organic whole with the chamber wall in pressure notes chamber, water and set up on the lower mould, first dodge gate and the mutual rigid coupling of second dodge gate, and first dodge gate and second dodge gate along vertical direction and lower mould sliding connection, can close watering and open the outage when first dodge gate, second dodge gate go upward, can open watering and close the outage when first dodge gate, second dodge gate are down.
A first elastic unit is arranged between the first movable door, the second movable door and the lower die, the first elastic unit is assembled to enable the elastic force of the first elastic unit to drive the first movable door and the second movable door to move upwards, the linkage mechanism comprises a pressure rod arranged on the upper die and blocking parts arranged on the first movable door and the second movable door, and the pressure rod can downwards extrude the blocking parts to enable the first movable door and the second movable door to move downwards when the upper die moves downwards to be closed with the lower die; the linkage mechanism further comprises a blocking and connecting releasing mechanism which is assembled to enable the pressing rod and the blocking and connecting part to be staggered to release the blocking and connecting cooperation between the pressing rod and the blocking and connecting part after the piston extrudes the molten aluminum alloy in the pressure injection cavity into the cavity and enables the molten aluminum alloy to fill the cavity, and the first movable door and the second movable door can move upwards under the action of the first elastic unit.
The first movable door and the second movable door are fixedly connected to a floating frame, the blocking part comprises a baffle plate which is connected with the floating frame in a sliding mode along the horizontal direction, a through hole is formed in the baffle plate, the diameter of the through hole is larger than the outer diameter of the pressing rod, a second elastic unit is arranged between the baffle plate and the floating frame, and the baffle plate enables the through hole to be in a state of being staggered with the pressing rod under the action of the second elastic unit in a normal state so that the pressing rod can be blocked and connected with the baffle plate; the blocking and connecting release mechanism comprises a wedge block arranged on the baffle and a wedge driving block fixedly connected with the piston, when the piston moves upwards to extrude molten aluminum alloy in the pressure injection cavity into the cavity and enable the molten aluminum alloy to be filled in the cavity, the wedge driving block can extrude the wedge block to enable the baffle to slide to a state that the through hole is opposite to the pressure lever, and at the moment, the baffle loses the extrusion of the pressure lever, so that the first movable door and the second movable door move upwards under the action of the first elastic unit.
Still including being used for heating the molten bath that melts the aluminum alloy ingot and store molten aluminum alloy, the drain hole communicates with the liquid level upper portion space of molten bath, the pressure is annotated the chamber and still includes the runner with molten bath liquid level lower part space intercommunication, the runner is located the drain hole below, and molten aluminum alloy liquid in the molten bath can pass through the runner and pour into the pressure into the intracavity when the piston is located pressure and annotates the chamber lower extreme, and the piston lateral wall can be with the runner shutoff when the piston goes upward.
The piston is internally provided with a drain hole which is communicated to the side wall of the piston from the top surface of the piston, the drain hole is butted with the runner when the piston is positioned at the lower end of the pressure injection cavity, and the drain hole is butted with the drain hole when the piston extrudes the molten aluminum alloy in the pressure injection cavity into the cavity and enables the molten aluminum alloy to be full of the cavity.
When in die casting, the piston is moved to the lower part of the runner to inject molten aluminum alloy into the pressure injection cavity, at the moment, the molten aluminum alloy liquid in the pressure injection cavity is excessive, then the piston moves upwards, the upper die and the lower die are in a separated state in the process, the second movable door is in an open state, therefore, the excessive molten aluminum alloy liquid in the injection cavity can be discharged from the liquid discharge hole along with the upward movement of the piston, the liquid level of the molten aluminum alloy liquid is always parallel and level with the liquid discharge hole, the piston stops when ascending to a specified position, the molten aluminum alloy liquid in the pressure injection cavity is just the required dosage for die casting, at the moment, the upper die and the lower die are driven to be closed, the first movable door is opened, the second movable door is closed, then the piston is driven to move upwards again to extrude the molten aluminum alloy liquid in the pressure injection cavity into the die cavity, after the molten aluminum alloy liquid is filled in the die, enabling the first movable door and the second movable door to move upwards under the action of the first elastic unit, closing the first movable door, opening the second movable door, butting the drain hole and the drain hole of the piston at the moment, and enabling residual molten aluminum alloy in the pressure injection cavity to flow back into the molten pool from the drain hole and the drain hole in sequence; and driving the upper die to move upwards after the molten aluminum alloy in the cavity is cooled and solidified, taking out the movable scroll blank from the die, and completing die casting.
The upper die is provided with a first discharging mechanism, the first discharging mechanism comprises a first discharging rod in sliding connection with the upper die, the first discharging rod penetrates through a half-section groove of the upper die and is arranged, the first discharging rod is fixedly connected with a first discharging plate, the first discharging plate is provided with a first stop rod, the first stop rod penetrates through the bottom surface of the upper die and is arranged, a third elastic unit is arranged between the first discharging plate and the upper die, the third elastic unit is assembled into a structure that the elastic force of the third elastic unit can drive the first discharging plate to move downwards relative to the upper die, the first discharging rod extends downwards into the half-section groove under the action of the third elastic unit in a normal state, the first stop rod extends downwards below the bottom surface of the upper die under the action of the third elastic unit, and the first stop rod extrudes the first discharging plate and the first discharging rod when the upper die and the lower die are folded, so that the lower end of the first discharging rod is flush with the wall of the half.
The lower die is provided with a second discharging mechanism, the second discharging mechanism comprises a second discharging rod in sliding connection with the lower die, the second discharging rod penetrates through a half-section groove of the lower die and is arranged in the half-section groove of the lower die, the second discharging rod is fixedly connected with a second discharging plate, a second stop rod is arranged on the second discharging plate and penetrates through the top surface of the lower die, a fourth elastic unit is arranged between the second discharging plate and the lower die, the fourth elastic unit is assembled to enable the second discharging plate to move upwards relative to the lower die due to elasticity of the fourth elastic unit, the second discharging rod extends into the half-section groove under the action of the fourth elastic unit in a normal state, the second stop rod extends above the top surface of the lower die under the action of the fourth elastic unit, and when the upper die and the lower die are folded, the second stop rod extrudes the second discharging plate and the second discharging rod, the upper end of the second discharging rod is parallel and level with the wall of.
The molten pool comprises a main molten pool and an auxiliary molten pool, the lower ends of the main molten pool and the auxiliary molten pool are communicated with each other, the aluminum alloy ingot is heated and melted in the main molten pool, and the liquid discharge hole and the runner are communicated with the auxiliary molten pool; and the side walls of the molten pool and the pressure injection cavity are provided with an electric heating device and a heat insulation layer.
The invention has the technical effects that: according to the invention, the movable doors are arranged in the injection cavity and the pouring gate, when the cavity is filled with molten aluminum alloy, the pouring gate is disconnected from the cavity by using the movable doors, the liquid discharge hole of the injection cavity is opened, and residual molten aluminum alloy liquid in the pouring gate is discharged from the pouring gate and the injection cavity before solidification, so that solid excess materials are prevented from appearing in the pouring gate, the subsequent excess material removing process is omitted, the production steps are simplified, and the processing efficiency is improved.
Drawings
FIG. 1 is a perspective view of a orbiting scroll of a scroll compressor provided in an embodiment of the present invention;
FIG. 2 is a perspective view of an alternate view of the orbiting scroll of the scroll compressor provided by the embodiments of the present invention;
fig. 3 is a perspective view of a die casting mold provided by an embodiment of the present invention;
FIG. 4 is a perspective view from another perspective of a die casting mold provided in accordance with an embodiment of the present invention;
FIG. 5 is a top view of a die casting mold provided by an embodiment of the present invention;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
FIG. 7 is a cross-sectional view of another station of a compression column die provided by an embodiment of the present invention;
FIG. 8 is a cross-sectional view of yet another station of a compression column die provided by an embodiment of the present invention;
FIG. 9 is a cross-sectional view of yet another station of a die casting mold provided in accordance with an embodiment of the present invention;
FIG. 10 is an enlarged view of section I of FIG. 8;
FIG. 11 is an enlarged view of section II of FIG. 8;
FIG. 12 is an enlarged view of a portion III of FIG. 9;
FIG. 13 is an enlarged view of a portion IV of FIG. 9;
FIG. 14 is a cross-sectional view B-B of FIG. 5;
fig. 15 is a perspective view of a floating frame provided by an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the following description is given in conjunction with the accompanying examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.
A scroll compressor comprises a movable scroll 1, a fixed scroll, a motor, a shell and a cross slip ring; decide vortex dish and casing rigid coupling, the eccentric shaft that sets up on the vortex dish 1 and the motor spindle rotates and is connected, moves vortex dish 1 through cross sliding ring and casing sliding connection in two mutually perpendicular's directions, moves the vortex board of vortex dish 1 and the mutual interpolation of the vortex groove of deciding the vortex dish and closes, moves vortex dish 1 structure as shown in figure 1, 2, including the vortex board 2 that circular disk body and circular disk body one side set up, it makes to move vortex dish 1 adoption following method: die-casting, namely injecting molten aluminum alloy into a die-casting die to prepare a blank of the movable scroll plate 1; machining, namely mounting a blank of the movable scroll 1 on machining equipment to cut the side surface of the scroll plate 2 and the end surface of the movable scroll 1 to obtain the movable scroll 1; as shown in fig. 3-9, the die casting mold comprises a pressure injection cavity 10 for containing molten aluminum alloy and a cavity 20 having the same shape as the blank of the movable scroll 1, the cavity 20 is communicated with the upper end of the pressure injection cavity 10 through a pouring gate 30, the pressure injection cavity 10 is further provided with a liquid discharge hole 40, as shown in fig. 10 and 12, the pouring gate 30 is provided with a first movable door 81, the liquid discharge hole 40 is provided with a second movable door 82, a piston 50 arranged in the pressure injection cavity 10 in a sliding manner along the vertical direction is provided, a linkage mechanism is arranged between the piston 50 and the first movable door 81 and the second movable door 82, and the linkage mechanism is assembled as follows: when the piston 50 pushes the molten aluminum alloy in the pressure injection cavity 10 into the cavity 20, the first movable door 81 is opened and the second movable door 82 is closed, and when the piston 50 pushes the molten aluminum alloy in the pressure injection cavity 10 into the cavity 20 and fills the cavity 20 with the molten aluminum alloy, the first movable door 81 is closed and the second movable door 82 is opened, the residual molten aluminum alloy in the pressure injection cavity 10 is discharged through the liquid discharge hole 40. According to the invention, the movable doors are arranged in the pressure injection cavity 10 and the pouring gate 30, when the cavity 20 is filled with the molten aluminum alloy, the pouring gate 30 is disconnected from the cavity 20 by the movable doors, the liquid discharge hole 40 of the pressure injection cavity 10 is opened, and the residual molten aluminum alloy liquid in the pouring gate 30 is discharged from the pouring gate 30 and the pressure injection cavity 10 before solidification, so that solid residual materials in the pouring gate 30 are avoided, the subsequent residual material removing process is omitted, the production steps are simplified, and the processing efficiency is improved.
Preferably, the cavity 20 is composed of an upper die 21 and a lower die 22, half-section grooves are respectively arranged on the upper die 21 and the lower die 22, the two half-section grooves jointly enclose the cavity 20 when the upper die 21 and the lower die 22 are closed, the lower die 22 is connected with the cavity wall of the injection cavity 10 into a whole, the runner 30 is arranged on the lower die 22, the first movable door 81 and the second movable door 82 are fixedly connected with each other, the first movable door 81 and the second movable door 82 are connected with the lower die 22 in a sliding mode along the vertical direction, the runner 30 can be closed and the liquid discharge hole 40 can be opened when the first movable door 81 and the second movable door 82 move upwards, and the runner 30 can be opened and the liquid discharge hole 40 can be closed when the first movable door 81 and the second movable door 82 move downwards. As shown in fig. 11 and 13, a first elastic unit 85 is disposed between the first movable door 81, the second movable door 82 and the lower mold 22, the first elastic unit 85 is assembled such that its elastic force can drive the first movable door 81 and the second movable door 82 to move upward, the linkage mechanism includes a pressing rod 215 disposed on the upper mold 21 and a blocking portion disposed on the first movable door 81 and the second movable door 82, and the pressing rod 215 can press the blocking portion downward to make the first movable door 81 and the second movable door 82 move downward when the upper mold 21 moves downward to close with the lower mold 22; the linkage mechanism further comprises a blocking and releasing mechanism which is assembled to enable the pressing rod 215 and the blocking and releasing part to be staggered to release the blocking and matching between the pressing rod and the blocking and releasing part after the piston 50 extrudes the molten aluminum alloy in the injection cavity 10 into the cavity 20 and enables the molten aluminum alloy to fill the cavity 20, so that the first movable door 81 and the second movable door 82 move upwards under the action of the first elastic unit 85. According to the invention, the opening and closing of the first movable door 81 and the second movable door 82 are realized by utilizing the opening and closing actions of the upper die 21 and the lower die 22 and the extrusion action of the piston 50, and the movable doors do not need to be provided with independent driving elements, so that the problem that the driving elements cannot normally work in a high-temperature environment is avoided. The pressure injection cavity 10 of the invention needs to be kept at a higher temperature, and the temperature is controlled at least above the melting point of the aluminum alloy, so that the blockage of each channel due to the solidification of the molten aluminum alloy can be avoided, and the pressure injection cavity 10 can be preheated in practical application or a heating device is pre-buried in the cavity wall of the pressure injection cavity 10.
Specifically, as shown in fig. 11, 13, and 15, the first movable door 81 and the second movable door 82 are fixedly connected to a floating frame 80, the blocking portion includes a blocking plate 83 slidably connected to the floating frame 80 along a horizontal direction, a through hole 831 is provided on the blocking plate 83, a diameter of the through hole 831 is larger than an outer diameter of the compression bar 215, a second elastic unit 84 is provided between the blocking plate 83 and the floating frame 80, and the blocking plate 83 makes the through hole 831 be in a state of being dislocated from the compression bar 215 under the action of the second elastic unit 84 so as to block the compression bar 215 from the blocking plate 83 in a normal state; the blocking and connecting release mechanism comprises a wedge 832 arranged on the blocking plate 83 and a wedge driving block 52 fixedly connected with the piston 50, when the piston 50 moves upwards to extrude the molten aluminum alloy in the injection molding cavity 10 into the cavity 20 and make the molten aluminum alloy fill the cavity 20, the wedge driving block 52 can extrude the wedge 832 to make the blocking plate 83 slide to a state that the through hole 831 is opposite to the compression rod 215, and at the moment, the blocking plate 83 loses the extrusion of the compression rod 215 to make the first movable door 81 and the second movable door 82 move upwards under the action of the first elastic unit 85.
Further, as shown in fig. 6, 7, 8 and 9, the aluminum alloy casting press further comprises a molten pool 70 for heating and melting aluminum alloy ingots and storing molten aluminum alloy, the liquid discharge hole 40 is communicated with the upper space of the liquid surface of the molten pool 70, the pressure injection cavity 10 further comprises a runner 60 communicated with the lower space of the liquid surface of the molten pool 70, the runner 60 is located below the liquid discharge hole 40, molten aluminum alloy liquid in the molten pool 70 can be injected into the pressure injection cavity 10 through the runner 60 when the piston 50 is located at the lower end of the pressure injection cavity 10, and the runner 60 can be blocked by the side wall of the piston 50 when the piston 50 moves upwards. The piston 50 is internally provided with a drain hole 51, the drain hole 51 penetrates from the top surface of the piston 50 to the side wall of the piston 50, the drain hole 51 is in butt joint with the flow channel 60 when the piston 50 is positioned at the lower end of the pressure injection cavity 10, and the drain hole 51 is in butt joint with the drain hole 40 when the piston 50 extrudes the molten aluminum alloy in the pressure injection cavity 10 into the cavity 20 and enables the molten aluminum alloy to fill the cavity 20.
When in die casting, firstly, the piston 50 is moved to the lower part of the runner 60 to enable molten aluminum alloy to be injected into the pressure injection cavity 10, at the moment, the molten aluminum alloy liquid in the pressure injection cavity 10 is excessive, then the piston 50 is enabled to ascend, in the process, the upper die 21 and the lower die 22 are in a separated state, and the second movable door 82 is in an open state, so that the molten aluminum alloy liquid in the pressure injection cavity 10 is just the required dosage for die casting along with the discharge hole 40 discharging the excessive molten aluminum alloy liquid in the ascending pressure injection cavity 10 of the piston 50, the liquid level of the molten aluminum alloy liquid is always flush with the discharge hole 40, when the piston 50 ascends to a specified position, the piston 50 stops, at the moment, the molten aluminum alloy liquid in the pressure injection cavity 10 is just the required dosage for die casting, at the moment, the upper die and the lower die 22 are driven to fold, the second movable door 82 is opened by the first movable door 81, then the piston 50 ascends again, the molten aluminum alloy liquid in the pressure injection cavity 10 is extruded into, enabling the first movable door 81 and the second movable door 82 to move upwards under the action of the first elastic unit 85, closing the first movable door 81 and opening the second movable door 82, enabling the drain hole 51 of the piston 50 to be in butt joint with the drain hole 40 at the moment, and enabling the residual molten aluminum alloy in the pressure injection cavity 10 to sequentially flow back into the molten pool 70 from the drain hole 51 and the drain hole 40; and after the molten aluminum alloy in the cavity 20 is cooled and solidified, driving the upper die 21 to move upwards, taking out the movable scroll plate 1 blank from the die, and completing die casting. The upper die 21 and the piston 50 in the invention are respectively driven by two vertically arranged piston cylinders.
Further, as shown in fig. 14, a first discharging mechanism is disposed on the upper mold 21, the first discharging mechanism includes a first discharging rod 211 slidably connected to the upper mold 21, the first discharging rod 211 penetrates through a half-section groove of the upper mold 21, the first discharging rod 211 is fixedly connected to a first discharging plate 212, a first blocking rod 213 is disposed on the first discharging plate 212, the first blocking rod 213 penetrates through a bottom surface of the upper mold 21, a third elastic unit 214 is disposed between the first discharging plate 212 and the upper mold 21, the third elastic unit 214 is configured to have an elastic force capable of driving the first discharging plate 212 to move downward relative to the upper mold 21, the first discharging rod 211 protrudes into the half-section groove under the action of the third elastic unit 214 in a normal state, the first blocking rod 213 protrudes below the bottom surface of the upper mold 21 under the action of the third elastic unit 214, and the lower mold 22 extrudes the first blocking rod 213 to enable the first discharging plate 212 and the first discharging rod 211 to move upward and enable a lower end of the first discharging rod 211 to be connected to a wall of the half-section groove of the upper mold 21 when the upper mold 21 and the Flush. The lower die 22 is provided with a second discharging mechanism, the second discharging mechanism comprises a second discharging rod 221 connected with the lower die 22 in a sliding manner, the second discharging rod 221 penetrates through a half-section groove of the lower die 22 to be arranged, the second discharging rod 221 is fixedly connected with a second discharging plate 222, a second blocking rod 223 is arranged on the second discharging plate 222, the second blocking rod 223 penetrates through the top surface of the lower die 22 to be arranged, a fourth elastic unit 224 is arranged between the second discharging plate 222 and the lower die 22, the fourth elastic unit 224 is assembled to enable the second discharging plate 222 to move upwards relative to the lower die 22 under the elastic force of the fourth elastic unit 224, the second discharging rod 221 protrudes into the half-section groove under the effect of the fourth elastic unit 224 under normal conditions, and the second blocking rod 223 protrudes above the top surface of the lower die 22 under the effect of the fourth elastic unit 224, when the upper mold 21 is closed with the lower mold 22, the upper mold 21 presses the second stopper 223 to move the second stripper plate 222 and the second stripper bar 221 downward and to make the upper end of the second stripper bar 221 flush with the wall of the half-channel.
Preferably, the molten pool 70 comprises a main molten pool 71 and an auxiliary molten pool 72, the lower ends of the main molten pool 71 and the auxiliary molten pool 72 are communicated with each other, an aluminum alloy ingot is heated and melted in the main molten pool 71, and the liquid discharge holes 40 and the runner 60 are communicated with the auxiliary molten pool 72, so that the solid aluminum alloy or impurities which are not fully melted can be prevented from entering; and an electric heating device and an insulating layer are arranged on the side walls of the molten pool 70 and the pressure injection cavity 10.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.
Claims (10)
1. A method for processing a scroll plate of a scroll compressor comprises the steps that the scroll compressor comprises a movable scroll plate (1), a fixed scroll plate, a motor, a shell and a cross slip ring; decide vortex dish and casing rigid coupling, the eccentric shaft that sets up on vortex dish (1) and the motor spindle rotates to be connected, moves vortex dish (1) and passes through cross sliding ring and casing sliding connection in two mutually perpendicular's directions, moves vortex board (2) of vortex dish (1) and decides the vortex groove of vortex dish and inserts each other and close its characterized in that: the movable scroll (1) is prepared by adopting the following method: die-casting, namely injecting molten aluminum alloy into a die-casting die to prepare a blank of the movable scroll (1); machining, namely mounting a blank of the movable scroll (1) on machining equipment to cut the side surface of the scroll plate (2) and the end surface of the movable scroll (1) to obtain the movable scroll (1); die casting die is including being used for holding pressure notes chamber (10) of melting aluminum alloy and with move die cavity (20) that vortex dish (1) blank shape is unanimous, die cavity (20) are through watering (30) and pressure notes chamber (10) upper end intercommunication, still are equipped with outage (40) on pressure notes chamber (10), it is equipped with first dodge gate (81) on (30) to water, outage (40) are equipped with second dodge gate (82), are equipped with in pressure notes chamber (10) and slide piston (50) that set up along vertical direction, be equipped with link gear between piston (50) and first dodge gate (81) and second dodge gate (82), link gear is assembled and is: when the piston (50) extrudes the molten aluminum alloy in the pressure injection cavity (10) into the cavity (20), the first movable door (81) is opened and the second movable door (82) is closed, and when the piston (50) extrudes the molten aluminum alloy in the pressure injection cavity (10) into the cavity (20) and the first movable door (81) is closed and the second movable door (82) is opened after the molten aluminum alloy is filled in the cavity (20), the residual molten aluminum alloy in the pressure injection cavity (10) is discharged through the liquid discharge hole (40).
2. The scroll machining method of a scroll compressor according to claim 1, wherein: the die cavity (20) is composed of an upper die (21) and a lower die (22), the upper die (21) and the lower die (22) are respectively provided with a half-section-shaped groove, when the upper die (21) and the lower die (22) are folded, the two half-section-shaped grooves jointly enclose the die cavity (20), the lower die (22) is connected with the cavity wall of the pressure injection cavity (10) into a whole, the pouring gate (30) is arranged on the lower die (22), the first movable door (81) and the second movable door (82) are fixedly connected with each other, and the first movable door (81) and the second movable door (82) are connected with the lower die (22) in a sliding way along the vertical direction, when the first movable door (81) and the second movable door (82) move upwards, the pouring gate (30) can be closed and the liquid discharge hole (40) can be opened, when the first movable door (81) and the second movable door (82) descend, the pouring gate (30) can be opened and the drainage hole (40) can be closed.
3. The scroll processing method of a scroll compressor according to claim 2, wherein: a first elastic unit (85) is arranged between the first movable door (81), the second movable door (82) and the lower die (22), the first elastic unit (85) is assembled to enable the elastic force of the first elastic unit to drive the first movable door (81) and the second movable door (82) to move upwards, the linkage mechanism comprises a pressing rod (215) arranged on the upper die (21) and blocking parts arranged on the first movable door (81) and the second movable door (82), and when the upper die (21) moves downwards to be closed with the lower die (22), the pressing rod (215) can downwards extrude the blocking parts to enable the first movable door (81) and the second movable door (82) to move downwards; the linkage mechanism further comprises a blocking and connecting releasing mechanism which is assembled to enable the pressing rod (215) and the blocking and connecting part to be staggered to release the blocking and connecting matching between the pressing rod and the blocking and connecting part after the piston (50) extrudes the molten aluminum alloy in the pressure injection cavity (10) into the cavity (20) and enables the molten aluminum alloy to fill the cavity (20), and the first movable door (81) and the second movable door (82) move upwards under the action of the first elastic unit (85).
4. A scroll machining method of a scroll compressor according to claim 3, wherein: the first movable door (81) and the second movable door (82) are fixedly connected to a floating frame (80), the blocking part comprises a baffle (83) which is connected with the floating frame (80) in a sliding mode along the horizontal direction, a through hole (831) is formed in the baffle (83), the diameter of the through hole (831) is larger than the outer diameter of the compression rod (215), a second elastic unit (84) is arranged between the baffle (83) and the floating frame (80), and the baffle (83) enables the through hole (831) to be in a state of being staggered with the compression rod (215) under the action of the second elastic unit (84) in a normal state, so that the compression rod (215) can be blocked and connected with the baffle (83); the blocking and connecting release mechanism comprises a wedge-shaped block (832) arranged on a baffle (83) and a wedge-shaped driving block (52) fixedly connected with a piston (50), when the piston (50) moves upwards to extrude molten aluminum alloy in the pressure injection cavity (10) into the cavity (20) and enable the molten aluminum alloy to fill the cavity (20), the wedge-shaped driving block (52) can extrude the wedge-shaped block (832) to enable the baffle (83) to slide to a state that a through hole (831) is right opposite to a pressure lever (215), and at the moment, the baffle (83) loses the extrusion of the pressure lever (215) to enable the first movable door (81) and the second movable door (82) to move upwards under the action of the first elastic unit (85).
5. A scroll machining method of a scroll compressor according to claim 3, wherein: still including being used for heating and melting aluminium alloy ingot and storing molten aluminum alloy's molten bath (70), drain hole (40) and the liquid level upper portion space intercommunication of molten bath (70), pressure annotate chamber (10) still include runner (60) with molten bath (70) liquid level lower part space intercommunication, runner (60) are located drain hole (40) below, and the molten aluminium alloy liquid in molten bath (70) can be injected into pressure annotate chamber (10) through runner (60) when piston (50) are located pressure annotate chamber (10) lower extreme in, and piston (50) lateral wall can be with runner (60) shutoff when piston (50) are gone upward.
6. The scroll machining method of a scroll compressor according to claim 5, wherein: the piston (50) is internally provided with a drain hole (51), the drain hole (51) penetrates through the side wall of the piston (50) from the top surface of the piston (50), the drain hole (51) is butted with the flow channel (60) when the piston (50) is positioned at the lower end of the pressure injection cavity (10), and the drain hole (51) is butted with the liquid discharge hole (40) when the piston (50) extrudes molten aluminum alloy in the pressure injection cavity (10) into the cavity (20) and enables the molten aluminum alloy to fill the cavity (20).
7. The scroll processing method of a scroll compressor according to claim 6, wherein: when in die casting, firstly, the piston (50) is moved to the lower part of the flow channel (60) to enable molten aluminum alloy to be injected into the pressure injection cavity (10), at the moment, molten aluminum alloy liquid in the pressure injection cavity (10) is excessive, then the piston (50) is enabled to move upwards, in the process, the upper die (21) and the lower die (22) are in a separated state, the second movable door (82) is in an open state, therefore, the liquid level of the molten aluminum alloy liquid is always flush with the liquid discharge hole (40) along with the discharge of the excessive molten aluminum alloy liquid in the upward pressure injection cavity (10) of the piston (50), when the piston (50) moves upwards to a specified position, the piston stops, at the moment, the molten aluminum alloy liquid in the pressure injection cavity (10) is just the consumption required by die casting, at the moment, the upper die and the lower die (22) are driven to close, the first movable door (81) opens the second movable door (82) to close, and then the piston (, extruding molten aluminum alloy liquid in a pressure injection cavity (10) into a cavity (20), just staggering a pressure rod (215) and a blocking part by a blocking and connecting releasing mechanism after the cavity (20) is filled with the molten aluminum alloy liquid to release the blocking and connecting matching between the pressure rod and the blocking part, enabling a first movable door (81) and a second movable door (82) to move upwards under the action of a first elastic unit (85), closing the first movable door (81) and opening the second movable door (82), enabling a drain hole (51) of a piston (50) to be in butt joint with a drain hole (40) at the moment, and enabling residual molten aluminum alloy in the pressure injection cavity (10) to flow back into a molten pool (70) from the drain hole (51) and the drain hole (40) in sequence; and after the molten aluminum alloy in the cavity (20) is cooled and solidified, driving the upper die (21) to move upwards, taking out the blank of the movable scroll (1) from the die, and completing die casting.
8. The scroll processing method of a scroll compressor according to claim 2, wherein: the upper die (21) is provided with a first discharging mechanism, the first discharging mechanism comprises a first discharging rod (211) which is in sliding connection with the upper die (21), the first discharging rod (211) penetrates through a half-section groove of the upper die (21) and is arranged, the first discharging rod (211) is fixedly connected with a first discharging plate (212), the first discharging plate (212) is provided with a first stop lever (213), the first stop lever (213) penetrates through the bottom surface of the upper die (21) and is arranged, a third elastic unit (214) is arranged between the first discharging plate (212) and the upper die (21), the third elastic unit (214) is assembled to enable the elastic force of the third elastic unit to drive the first discharging plate (212) to move downwards relative to the upper die (21), the first discharging rod (211) downwards extends into the half-section groove under the action of the third elastic unit (214) in a normal state, the first stop lever (213) extends to the lower part of the bottom surface of the upper die (21) under the action of the third elastic unit (214), when the upper die (21) is closed with the lower die (22), the lower die (22) extrudes the first stop rod (213) to enable the first stripper plate (212) and the first stripper rod (211) to ascend and enable the lower end of the first stripper rod (211) to be flush with the wall of the half-section groove.
9. The scroll processing method of a scroll compressor according to claim 2, wherein: a second discharging mechanism is arranged on the lower die (22), the second discharging mechanism comprises a second discharging rod (221) which is in sliding connection with the lower die (22), the second discharging rod (221) penetrates through a half-section groove of the lower die (22) and is arranged, the second discharging rod (221) is fixedly connected with a second discharging plate (222), a second stop rod (223) is arranged on the second discharging plate (222), the second stop rod (223) penetrates through the top surface of the lower die (22) and is arranged, a fourth elastic unit (224) is arranged between the second discharging plate (222) and the lower die (22), the fourth elastic unit (224) is assembled to enable the second discharging plate (222) to move upwards relative to the lower die (22) under the elastic force of the fourth elastic unit (224), the second discharging rod (221) extends into the half-section groove under the effect of the fourth elastic unit (224) in a normal state, the second stop rod (223) extends to the upper portion of the top surface of the lower die (22) under the effect of the fourth elastic unit (224), when the upper die (21) is closed with the lower die (22), the upper die (21) extrudes the second stop rod (223) to enable the second stripper plate (222) and the second stripper rod (221) to descend and enable the upper end of the second stripper rod (221) to be flush with the wall of the half-section groove.
10. The scroll machining method of a scroll compressor according to claim 5, wherein: the molten pool (70) comprises a main molten pool (71) and an auxiliary molten pool (72), the lower ends of the main molten pool (71) and the auxiliary molten pool (72) are communicated with each other, aluminum alloy ingots are heated and melted in the main molten pool (71), and the liquid drainage holes (40) and the flow passages (60) are communicated with the auxiliary molten pool (72); and an electric heating device and a heat-insulating layer are arranged on the side walls of the molten pool (70) and the pressure injection cavity (10).
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| JP2539333B2 (en) * | 1993-08-07 | 1996-10-02 | 九州柳河精機株式会社 | Continuous casting method of die casting wheel and die casting machine |
| JPH0985418A (en) * | 1995-09-22 | 1997-03-31 | Honda Motor Co Ltd | Method for judging quality of die casting product and instrument therefor |
| CN101468378B (en) * | 2008-06-21 | 2010-09-01 | 冯福贵 | Aluminium alloy frying pan liquid die-forging die and technique for producing aluminium alloy frying pan |
| JP5068836B2 (en) * | 2010-03-24 | 2012-11-07 | ジヤトコ株式会社 | Casting apparatus and casting method |
| CN103978184B (en) * | 2014-05-28 | 2015-12-02 | 西安交通大学 | A kind of semisolid four direction squeeze casting mould of compressor scroll plate |
| CN208437647U (en) * | 2018-06-25 | 2019-01-29 | 温岭立骅机械有限公司 | The die casting of automobile air conditioner compressor Moving plate lid |
| CN110576169A (en) * | 2019-10-25 | 2019-12-17 | 苏州丰硕模具有限公司 | automobile engine cylinder block die casting die |
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