CN116944324B - Spinning device for processing metal cylindrical part - Google Patents
Spinning device for processing metal cylindrical part Download PDFInfo
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- CN116944324B CN116944324B CN202311213766.3A CN202311213766A CN116944324B CN 116944324 B CN116944324 B CN 116944324B CN 202311213766 A CN202311213766 A CN 202311213766A CN 116944324 B CN116944324 B CN 116944324B
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- pipe
- oil
- core mold
- spinning
- air
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- 238000009987 spinning Methods 0.000 title claims abstract description 54
- 239000002184 metal Substances 0.000 title claims abstract description 16
- 238000007664 blowing Methods 0.000 claims abstract description 68
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000001125 extrusion Methods 0.000 claims abstract description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 47
- 239000004519 grease Substances 0.000 claims description 32
- 238000007789 sealing Methods 0.000 claims description 28
- 238000003860 storage Methods 0.000 claims description 27
- 230000006835 compression Effects 0.000 claims description 21
- 238000007906 compression Methods 0.000 claims description 21
- 230000001050 lubricating effect Effects 0.000 claims description 19
- 239000003507 refrigerant Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 9
- 210000002445 nipple Anatomy 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims 3
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
- B21D22/16—Spinning over shaping mandrels or formers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The application discloses a spinning device for processing a metal cylindrical part, and particularly relates to the field of spinning processing, comprising a spinning machine, wherein a core die and a spinning wheel are arranged on the spinning machine, and the other end of the core die is fixedly connected with a stable shaft; the inside of mandrel is provided with cooling system, and cooling system includes the gas blowing pipe, and the inside multiunit gas blowing hole that is provided with of mandrel, and in the one end of gas blowing hole extended to the inner chamber of mandrel, the other end of gas blowing hole extended to on the terminal surface of mandrel, the surface of stable axle was provided with the air-out seam of multiunit along stable axle axial distribution. According to the application, the low-temperature gas is blown out from the gas outlet slot to the region between the blank extending outside the stable shaft and the outer wall of the stable shaft by utilizing the gas blowing pipe, so that the blank is cooled, the friction resistance is increased due to the fact that the blank is heated and expanded, the extrusion of the side wall part of the blank due to the fact that the extension of the inner edge is blocked is avoided, the processing quality of a product is improved, and the processing error rate is reduced.
Description
Technical Field
The application relates to the technical field of spinning processing, in particular to a spinning device for processing a metal cylindrical part.
Background
The spinning process is to fix a flat blank or a preformed blank onto a rotary core mold, apply pressure to the blank by a spinning roller, and axially feed the spinning roller at the same time, and the process is carried out for one or more times to obtain various thin-wall hollow revolving body products.
For the spinning processing of a cylindrical part similar to an automobile exhaust pipe, the spinning processing is generally divided into a forward spinning mode and a reverse spinning mode, when the reverse spinning is adopted, one end of a blank close to a machine is fixed by a reverse thrust plate, the other end of the blank is a free end, the spinning wheel is fed to the direction of the reverse thrust plate by the free end, the blank is extruded, the axial flow direction of the blank formed by extrusion deformation is opposite to the feeding direction of the spinning wheel during extrusion, and the thinned blank part is stretched and elongated towards the free end.
The exhaust pipe is arranged longer and straighter, the total length of an exhaust system can be increased, the dynamic characteristics of air flow are changed, low-speed torque output is improved, and low-speed response performance of an engine is improved.
In the processing process, because a longer straight cylinder needs to be processed, the extension amount of the blank in the length direction is increased, the part of the blank extending out of the end part of the core mold is increased, and because the processing precision of the blank is not high, the mass center of the part of the blank extending out of the core mold is offset, and the blank easily shakes due to unstable mass center in the process of following the high-speed rotation of the core mold, so that in order to improve the integral stability of the extended blank, a stable shaft can be added at the end part of the core mold, and the stable shaft contacts with the inner edge of the blank to support the inner edge part in a centering manner, thereby ensuring the stability in processing.
However, as the length of extension of the blank increases, the friction stroke between the extension part and the surface of the core mold increases during extension, the moving friction stroke between the inner edge and the stabilizing shaft also increases, and the friction energy is converted into heat energy, so that the temperature of the blank material increases, especially the inner edge part, after the temperature increases, the thermal expansion is generated, and the contact tightness between the inner edge and the stabilizing shaft is further increased, so that the sliding resistance of the inner edge relative to the stabilizing shaft is increased, the resistance forms a reaction force opposite to the extension direction of the material on the material, and when the reaction force is larger than the yield limit of the thin-wall material after extension, the side wall of the material is extruded and deformed, and the quality of a finished product is influenced.
Disclosure of Invention
The application provides a spinning device for processing a metal cylindrical part, which aims to solve the problems that: the long cylinder part with the inner edge is heated up by friction between the long cylinder part and a stable shaft supporting the inner edge when being pressed and extended and expands, so that the resistance between the inner edge and the stable shaft is increased, and the technical problem of extrusion deformation of the side wall of the material is caused.
In order to achieve the above purpose, the present application provides the following technical solutions: the spinning device for processing the metal cylindrical part comprises a spinning machine, wherein a core mold and a spinning wheel are arranged on the spinning machine, the core mold is used for fixing a blank, one end of the core mold is provided with a counter plate, and the other end of the core mold is fixedly connected with a stable shaft; the cooling system is used for cooling blanks extending to the stable shaft, the cooling system comprises a gas blowing pipe, the gas blowing pipe is arranged in the core mold, a plurality of groups of gas blowing holes are formed in the core mold, one end of each gas blowing hole extends into an inner cavity of the core mold, the other end of each gas blowing hole extends onto the end face of the core mold, a plugging guide block is fixedly arranged in the core mold, a plurality of groups of gas outlet slits are formed in the surface of the stable shaft, each group of gas outlet slits are arranged along the axial direction of the stable shaft, and the plurality of groups of gas outlet slits are distributed on the circumferential surface of the stable shaft in a circumferential array; the blow pipe is used for blowing out low-temperature gas into the core mold, and the low-temperature gas enters between the blank extending outside the stabilizing shaft and the outer wall of the stabilizing shaft from the blow hole and flows out from the air outlet gap.
In a preferred embodiment, the spinning machine further comprises a spindle box and a screw guide rail, wherein the spindle box is provided with a chuck, one end of the mandrel, which is close to the counter plate, is fixedly arranged on the chuck, the screw guide rail is provided with a feed box in a sliding manner, the spinning wheel is arranged on the feed box, a motor screw structure is arranged in the screw guide rail and is used for moving and driving the feed box, a tip assembly is further arranged on the screw guide rail, the tip assembly is slidably arranged on the screw guide rail, a tip is rotationally arranged on the tip assembly, and the tip and the stabilizing shaft are coaxially arranged.
In a preferred embodiment, the inside of mandrel still is provided with multiunit spoiler, and the spoiler is located between gas blow pipe and shutoff guide block, and spoiler fixed mounting is on the inner wall of mandrel, and the one end that the gas blow hole is close to the mandrel inner chamber extends to between two adjacent spoilers, and the axial distribution of spoiler along the mandrel, and the shutoff guide block is close to the one end of spoiler and sets up to the toper end.
In a preferred embodiment, the cooling system further comprises a refrigerating unit and an air supply unit, the air supply unit is an air pump, the air blowing pipe is connected with the air pump through an air supply pipe, the air blowing pipe penetrates through a main shaft inner cavity in the main shaft box and the chuck and extends to the inside of the mandrel, the air blowing pipe is in running fit with the mandrel, one end of the air blowing pipe, which extends out of the mandrel, is fixedly arranged with the spinning machine, the inner wall of the mandrel is provided with a stepped portion, the air blowing pipe is in running fit with the stepped portion through a bearing, a sealing gasket is further arranged between the air blowing pipe and the stepped portion in the mandrel, the sealing gasket is fixedly arranged in the mandrel, and the sealing gasket is in clearance fit with the air blowing pipe.
In a preferred embodiment, the inner wall of the air blowing pipe is provided with a heat exchange pipe, the heat exchange pipe is provided with a refrigerant inlet and a refrigerant outlet, the refrigerant inlet and the refrigerant outlet are respectively connected with the pump through a circulating pipe, and the circulating pipe is provided with a refrigerator.
In a preferred embodiment, one end of the air blowing pipe, which is close to the plugging guide block, is fixedly provided with a guide pipe, the guide pipe is of a straight cylinder type structure, and a plurality of groups of spiral rifling lines are arranged in the inner wall of the guide pipe.
In a preferred embodiment, an oil storage cavity is formed in the stabilizing shaft, a plurality of groups of oil outlet channels are formed in the side wall of the stabilizing shaft and distributed in a circumferential array on the circumferential surface of the stabilizing shaft, the plurality of oil outlet channels of each group are distributed in the axial direction of the stabilizing shaft, the plurality of oil outlet channels of each group are located in the area between two adjacent groups of air outlet gaps, lubricating grease is stored in the oil storage cavity, and the oil outlet channels are used for conveying the lubricating grease in the oil storage cavity to the surface of the stabilizing shaft.
In a preferred embodiment, an oil control plate is slidably mounted in the oil outlet channel, one end of the oil control plate, which is far away from the inner cavity of the stabilizing shaft, is provided with an arc-shaped end, the surface of the oil control plate is provided with an L-shaped channel, the L-shaped channel is a groove structure on the surface of the oil control plate, the top end of the oil control plate extends to the arc-shaped end, the bottom of the L-shaped channel is a transverse channel, the port of the transverse channel is matched with the inner wall of the oil outlet channel, when the stabilizing shaft rotates, the oil control plate moves outwards under the action of centrifugal force, the arc-shaped end of the oil control plate protrudes out of the surface of the stabilizing shaft, and when the inner edge on a blank passes through and presses the arc-shaped end of the oil control plate, the oil control plate moves inwards, and the transverse channel of the L-shaped channel enters the oil storage cavity.
In a preferred embodiment, an inner limit groove is formed in one end, close to the oil storage cavity, of the oil outlet channel, an outer limit groove is formed in the other end of the oil outlet channel, a rigid protruding portion is arranged at one end, corresponding to the inner limit groove, of the oil control plate, and an elastic protruding portion is fixedly mounted at one end, corresponding to the outer limit groove, of the oil control plate.
In a preferred embodiment, a sealing cover is fixedly arranged in the stable shaft far away from one end of the core mould, an oil storage cavity is formed between the sealing cover and the plugging flow guide block, a compression piston is slidably arranged at one end, close to the sealing cover, of the oil storage cavity, lubricating grease is stored between the compression piston and the plugging flow guide block, a pressure elastic piece is arranged between the compression piston and the sealing cover and used for providing an elastic force for compressing the plugging flow guide block for the compression piston, an oil filling nozzle is arranged on the sealing cover and connected with the compression piston through a hose, and the hose extends into the lubricating grease between the compression piston and the plugging flow guide block.
The application has the beneficial effects that:
according to the application, the low-temperature gas is blown out from the gas outlet slot by utilizing the gas blowing pipe to the region between the blank extending outside the stable shaft and the outer wall of the stable shaft, the blank is cooled, the friction resistance between the inner edge and the stable shaft is increased due to the fact that the blank is heated and expanded, the inner edge is also promoted to move towards the extending direction by the gas flow, the extrusion of the side wall part of the blank due to the fact that the inner edge is blocked in extending is avoided, the processing quality of a product is greatly improved, and the processing error rate is reduced.
According to the application, the replacement heat pipe is arranged in the air blowing pipe, so that the refrigerating unit is arranged in the core mold to cool the air flow, the cooling effect on the air flow output by the air blowing pipe is improved, and the cooling efficiency of the cooling system is further improved.
When the inner edge of the oil control plate passes through and is extruded, the transverse channel of the L-shaped channel enters the oil storage cavity, lubricating grease can flow to the surface of the inner edge through the L-shaped channel, the lubricating effect on the inner edge is improved, the production of product defects is reduced, and the other oil control plates which are not contacted with the inner edge are kept in a state that the L-shaped channel is blocked under the action of centrifugal force, so that the lubricating grease cannot be thrown out in a large amount to cause waste.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present application.
Fig. 2 is a process state diagram of the present application.
FIG. 3 is a cross-sectional view of the stabilizing shaft of the present application.
Fig. 4 is a diagram showing a distribution of a spoiler inside a core mold according to the present application.
Fig. 5 is a diagram of an air supply system of an air blowing pipe in the case of using a refrigerator as a refrigerating unit according to the present application.
Fig. 6 is a schematic view of the overall structure of the air blowing pipe of the present application.
FIG. 7 is a schematic view of the structure of the oil storage chamber and the oil outlet passage in the stabilizing shaft of the present application.
Fig. 8 is a schematic diagram of the structure of the portion a in fig. 7 according to the present application.
Fig. 9 is a side view of a single oil control plate of the present application.
Fig. 10 is a schematic diagram of the overall structure of the oil control plate of the present application.
The reference numerals are: 1. a spinning machine; 11. a spindle box; 12. a screw guide rail; 13. a chuck; 14. a feed box; 15. a tip assembly; 2. a core mold; 21. a counter plate; 22. a blow hole; 23. plugging the flow guide block; 24. a spoiler; 25. a sealing gasket; 3. a stabilizing shaft; 31. an air outlet slot; 32. an oil storage chamber; 33. an oil outlet channel; 331. an inner limit groove; 332. an outer limit groove; 34. an oil control plate; 341. an L-shaped channel; 342. a rigid boss; 343. an elastic protrusion; 35. a cover; 351. an oil filling nozzle; 36. a compression piston; 361. a pressure elastic member; 4. a rotating wheel; 5. an air blowing pipe; 51. a heat exchange tube; 511. a refrigerant inlet; 512. a refrigerant outlet; 52. a guide tube; 521. spiral rifling; a. a blank; a1, inner edge.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings, wherein it is to be understood that the following detailed description is for the purpose of further illustrating the application only and is not to be construed as limiting the scope of the application, as various insubstantial modifications and adaptations of the application to those skilled in the art can be made in light of the foregoing disclosure.
Referring to fig. 1-10 of the specification, a spinning device for processing a metal cylindrical part comprises a spinning machine 1, wherein a mandrel 2 and a spinning wheel 4 are arranged on the spinning machine 1, the mandrel 2 is used for fixing a blank a, a counter plate 21 is arranged at one end of the mandrel 2, a stabilizing shaft 3 is fixedly connected to the other end of the mandrel 2, when the spinning device is installed, the blank a is sleeved on the mandrel 2, one end, close to an inner edge a1, of the blank a is sleeved on the stabilizing shaft 3, the inner edge a1 is in sliding fit with the outer wall of the stabilizing shaft 3, one end, close to the counter plate 21, of the blank a is contacted with the counter plate 21 and circumferentially fixed, relative rotation between the blank a and the mandrel 2 is avoided, specifically, fixed teeth are arranged on the counter plate 21, the fixed teeth and the end of the blank a form extrusion fixation, when in processing, the mandrel 2 rotates, the spinning wheel 4 continuously feeds, extrudes the blank a, and a thinned part of the blank a, namely one end with the inner edge a1 slides backwards on the stabilizing shaft 3;
the cooling system is used for cooling a blank a extending to the stable shaft 3, and specifically comprises a blow pipe 5, the core mold 2 is of a hollow structure, the blow pipe 5 is arranged in the core mold 2, a plurality of groups of blow holes 22 are formed in the core mold 2, one end of each blow hole 22 extends into an inner cavity of the core mold 2, the other end of each blow hole 22 extends to the end face of the core mold 2, which is close to one end of the stable shaft 3, a blocking guide block 23 is fixedly arranged in the core mold 2, the blow holes 22 are located in an area between a port of the blow pipe 5 and the blocking guide block 23, a plurality of groups of air outlet slits 31 are formed in the surface of the stable shaft 3, each group of air outlet slits 31 are arranged along the axial direction of the stable shaft, and the plurality of groups of air outlet slits 31 are distributed in a circumferential array on the circumferential surface of the stable shaft 3;
during processing, the air blowing pipe 5 is used for blowing low-temperature air into the core mold 2, the low-temperature air is blown out from each air blowing hole 22 to a position between a blank a extending outside the stable shaft 3 and the outer wall of the stable shaft 3 under the guide of the blocking guide block 23, and is blown out from the air outlet gap 31 at the contact position of the inner edge a1 and the stable shaft 3 to form low-temperature air flow in a fixed direction, so that the heat of a material extending to the upper part of the stable shaft 3 is taken away by the low-temperature air, the blank a is effectively cooled, the blank a is prevented from being heated and expanded to increase friction resistance between the inner edge a1 and the stable shaft 3, meanwhile, under the action of the air flow, the air flow also forms a thrust along the axial direction of the stable shaft 3 to the inner wall of the inner edge a1, the inner edge a1 is promoted to move towards the extending direction of the blank a, the side wall of the blank a is prevented from being extruded due to the extending resistance, the processing quality of a product is greatly improved, and the processing error rate of the product is reduced.
The spinning machine 1 further comprises a main shaft box 11 and a screw guide rail 12, wherein a chuck 13 is arranged on the main shaft box 11, one end of the mandrel 2, which is close to the counter plate 21, is fixedly arranged on the chuck 13, the main shaft box 11 drives the chuck 13 to rotate so as to drive the mandrel 2 to rotate, a feed box 14 is slidably arranged on the screw guide rail 12, the spinning wheel 4 is arranged on the feed box 14, and a motor screw structure for moving and driving the feed box 14 is arranged in the screw guide rail 12 so as to drive the feeding of the spinning wheel 4.
Further, the screw guide rail 12 is further provided with a tip assembly 15, the tip assembly 15 is slidably mounted on the screw guide rail 12, the tip assembly 15 is rotatably provided with a tip, the tip and the stabilizing shaft 3 are coaxially arranged, during processing, the tip assembly 15 can be slid to tightly press the tip and the stabilizing shaft 3, the stabilizing shaft 3 is supported in an auxiliary mode, and after processing is finished, the tip assembly 15 is slid reversely, and then the formed part can be taken out.
In the above embodiment, the air blowing pipe 5 blows low-temperature air into the core mold 2, because the core mold 2 is in a high-speed rotation state, in order to reduce the flow resistance when the air flows into the area between the blank a and the stabilizing shaft 3, a plurality of groups of spoilers 24 are further arranged inside the core mold 2, the spoilers 24 are positioned between the air blowing pipe 5 and the blocking guide blocks 23, the spoilers 24 are fixedly arranged on the inner wall of the core mold 2, one end of the air blowing hole 22, which is close to the inner cavity of the core mold 2, extends between two adjacent spoilers 24, the spoilers 24 are distributed along the axial direction of the core mold 2, one end of the blocking guide blocks 23, which is close to the spoilers 24, is arranged to be a conical end, and then when the air flows out from the air blowing pipe 5, the spoilers 24 are driven by the core mold 2 to rotate continuously, the spoilers 24 drive the air flow to rotate circumferentially, and the air flows are easier to enter the air blowing hole 22.
It should be noted that, the cooling system further includes a refrigeration unit and an air supply unit, specifically, the air supply unit is an air pump, the air blowing pipe 5 is connected with the air pump through an air pipe, the air blowing pipe 5 can supply air through the air pump, in this embodiment, the refrigeration unit can simply adopt a refrigerator, after the air pipe passes through a refrigeration cavity of the refrigerator, cool the air, then low-temperature air is conveyed to the air blowing pipe 5, and is output by the air blowing pipe 5, it should be noted that the air blowing pipe 5 passes through a main shaft inner cavity in the main shaft box 11 and the chuck 13, extends to the inside of the mandrel 2, and the air blowing pipe 5 extends out of one end of the main shaft box 11 for connecting the air pump.
Further, in order to make the better and air feed unit connection of air-blowing pipe 5, air-blowing pipe 5 and mandrel 2 normal running fit, and the one end that air-blowing pipe 5 extends mandrel 2 and spinning machine 1 fixed mounting, the inner wall of mandrel 2 is provided with the step, and air-blowing pipe 5 passes through bearing and this step normal running fit, and in order to prevent the air current that air-blowing pipe 5 blows out and outwards leak, still be provided with sealing gasket 25 between the step in air-blowing pipe 5 and mandrel 2, sealing gasket 25 fixed mounting is in mandrel 2, and air-blowing pipe 5 runs through sealing gasket 25, sealing gasket 25 and air-blowing pipe 5 clearance fit.
In the above embodiment, the refrigerator cannot be directly arranged in the spinning machine 1, and in the process of conveying the low-temperature gas to the gas blowing pipe 5 through the gas supply pipe, the gas supply pipe is in contact with the outside to generate heat exchange, so as to further reduce the cold insulation effect of the low-temperature gas and influence the cooling efficiency of the cooling system, so that the embodiment further provides a high-efficiency refrigeration unit, specifically, referring to fig. 2 and 6 of the specification, the inner wall of the gas blowing pipe 5 is provided with the heat exchange pipe 51, the heat exchange pipe 51 is distributed in the gas blowing pipe 5 in a wraparound manner (referring to the distribution of the heat exchange pipe in the heat exchanger), the heat exchange pipe 51 is provided with the refrigerant inlet 511 and the refrigerant outlet 512, the refrigerant inlet 511 and the refrigerant outlet 512 are respectively connected with the pump through the circulation pipe, and the circulation pipe is provided with the refrigerator, specifically, the refrigerant can use water and the water circulates in the heat exchange pipe 51 through the pump drive of the pump, when water passes through the refrigerator in the circulating pipe, the water is cooled, then low-temperature water moves into the heat exchange pipe 51, the gas conveyed in the air blowing pipe 5 is subjected to heat exchange and cooling, the water after heat exchange and temperature rise is recycled into the refrigerator, the effect of arranging the refrigerating unit in the core mold 2 is achieved, the cooling effect of the air blowing pipe 5 output air flow is improved, and the heat capacity of the water is larger than that of the air, so that even though the same conveying stroke is adopted, the heat exchange amount of the water and the air is smaller than that of the air, the cooling effect of the water in conveying formation is better than that of the air in the air blowing pipe 5, and the overall effect of firstly cooling the air and then conveying the air is better than that of the low-temperature water.
Further, one end of the air blowing pipe 5, which is close to the plugging guide block 23, is fixedly provided with a guide pipe 52, the guide pipe 52 is in a straight-tube structure, and a plurality of groups of spiral rifling 521 are arranged in the inner wall of the guide pipe 52, so that when low-temperature air flows out of the guide pipe 52, the air flow has rotational kinetic energy through the guidance of the spiral rifling 521, and further the rotation of the core mold 2 is adapted in advance.
By arranging the spiral rifling 521 and the spoiler 24, after being guided by the air blowing hole 22, the air flow entering between the blank a and the stabilizing shaft 3 has a rotation speed substantially equal to that of the core mold 2 and the blank a, and the air flow also has a motion along the axial direction of the stabilizing shaft 3, so that friction between the air flow and the inner wall of the blank a is reduced, and friction heat is reduced.
In order to further reduce the friction resistance between the inner edge a1 and the stabilizing shaft 3, the present embodiment further provides the following technical scheme, specifically, referring to fig. 7-10 of the specification, an oil storage cavity 32 is provided in the stabilizing shaft 3, a plurality of groups of oil outlet channels 33 are provided on the side wall of the stabilizing shaft 3, the plurality of groups of oil outlet channels 33 are distributed in a circumferential array on the circumferential surface of the stabilizing shaft 3, the plurality of oil outlet channels 33 of each group are all provided in a plurality of groups, the plurality of oil outlet channels 33 of each group are distributed along the axial direction of the stabilizing shaft, each group of oil outlet channels 33 is located in the area between two adjacent groups of air outlet slits 31, grease is stored in the oil storage cavity 32 (lubricating grease can also be used, and the lubricating grease is not easy to be thrown away due to relatively high fluidity), so that the oil outlet channels 33 are more suitable for the mandrel 2 rotating at high speed), and the lubricating grease in the oil storage cavity 32 is used for conveying the lubricating grease to the surface of the stabilizing shaft 3.
Further, the oil control plate 34 is slidably mounted in the oil outlet channel 33, one end of the oil control plate 34, far away from the inner cavity of the stabilizing shaft 3, is provided with an arc-shaped end, the surface of the oil control plate 34 is provided with an L-shaped channel 341, the L-shaped channel 341 is a groove structure on the surface of the oil control plate 34, the top end of the oil control plate 34 extends to the arc-shaped end, the bottom of the L-shaped channel 341 is a transverse channel, and the port of the transverse channel is matched with the inner wall of the oil outlet channel 33.
It should be noted that, each group of oil outlet channels 33 is located in the area between two adjacent groups of air outlet slits 31, the oil outlet channels 33 and the air outlet slits 31 form a mutual interval, and are not influenced by each other, when the stabilizing shaft 3 rotates, the oil control plate 34 moves outwards under the action of centrifugal force, and the arc-shaped end of the oil control plate 34 protrudes out of the surface of the stabilizing shaft 3, at this time, the transverse channel of the L-shaped channel 341 is inside the oil outlet channels 33 and is blocked by the oil outlet channels 33, the inner edge a1 slides on the stabilizing shaft 3, when the inner edge a1 passes through the oil control plate 34, the arc-shaped end of the oil control plate 34 is pressed, the oil control plate 34 is forced to move inwards, so that the transverse channel of the L-shaped channel 341 enters the oil storage cavity 32, at this time, under the action of centrifugal force, the grease can flow towards the surface of the inner edge a1 through the L-shaped channel 341, lubricate the inner edge a1, and the rest of the oil control plate 34 which is not contacted with the inner edge a1 keeps the state that the L-shaped channel 341 is blocked under the action of centrifugal force, therefore, the grease is not thrown out to cause waste, wherein, the plurality of groups of oil outlet channels 33 can be arranged along the axial direction of the stable shaft 3, further, the inner edge a1 can be continuously lubricated in the extending process of the blank a, the waste of the grease is not caused, the oil control plate 34 is similar to a switch structure, only when the inner edge a1 reaches the oil control plate 34 at the corresponding position, the oil control plate 34 at the position opens the oil outlet channels 33, the grease in the oil storage cavity 32 can flow out to the area between the inner edge a1 and the stable shaft 3, and in the outward moving process of the inner edge a1, the oil outlet channels 33 at the position automatically open the oil supply to the inner edge a1 when the inner edge a1 moves to the position of one oil outlet channel 33, and the oil outlet channels 33 at other areas are kept closed, so that the oil outlet channels 33 are continuously encountered in the moving process of the inner edge a1, the oil control plate 34 is continuously opened to supply oil, and grease cannot disappear immediately each time, so that the inner edge a1 is lubricated to the position of the next oil outlet channel 33, the relative continuity provided by the grease can be maintained, the inner edge a1 can be continuously lubricated, and the lubricating effect is ensured.
Further, in order to ensure that the oil control plate 34 can be stably installed in the oil outlet channel 33, an inner limit groove 331 is formed in one end, close to the oil storage cavity 32, of the oil outlet channel 33, an outer limit groove 332 is formed in the other end of the oil outlet channel 33, a rigid protruding portion 342 is formed in one end, corresponding to the inner limit groove 331, of the oil control plate 34, an elastic protruding portion 343 is fixedly installed at one end, corresponding to the outer limit groove 332, of the oil control plate 34, an arc-shaped elastic metal sheet can be selected for the elastic protruding portion 343, rubber protrusions can be used, during installation, the oil control plate 34 is installed outwards from the inner side of the oil outlet channel 33 until the elastic protruding portion 343 stretches after reaching the outer limit groove 332, and then the oil control plate 34 is limited by the cooperation of the inner limit groove 331, the outer limit groove 332, the rigid protruding portion 342 and the elastic protruding portion 343, and the oil control plate 34 is prevented from being thrown out.
Further, a sealing cover 35 is fixedly installed in the stable shaft 3 far away from one end of the core mold 2, an oil storage cavity 32 is formed between the sealing cover 35 and the sealing and guiding block 23, a compression piston 36 is slidably installed at one end, close to the sealing cover 35, of the oil storage cavity 32, lubricating grease is stored between the compression piston 36 and the sealing and guiding block 23, a pressure elastic member 361 is arranged between the compression piston 36 and the sealing cover 35, the pressure elastic member 361 is used for providing an elastic force for compressing the compression piston 36 to the sealing and guiding block 23, an oil filling nozzle 351 is arranged on the sealing cover 35, the oil filling nozzle 351 is connected with the compression piston 36 through a hose, and the hose extends into the lubricating grease between the compression piston 36 and the sealing and guiding block 23.
It should be noted that, as the grease is continuously reduced after being output from the L-shaped channel 341, the compression piston 36 is pushed by the pressure elastic member 361 to compress the grease, so as to ensure that the grease maintains a uniform cylindrical shape in the oil storage chamber 32, and further avoid that the grease is unevenly distributed to affect the rotation stability of the stabilizing shaft 3, and after the processing is finished, the grease can be added into the oil storage chamber 32 through the grease nipple 351.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application.
Claims (8)
1. A spinning device for processing a metal cylindrical part is characterized in that: the spinning machine comprises a spinning machine (1), wherein a core mold (2) and a spinning roller (4) are arranged on the spinning machine (1), the core mold (2) is used for fixing a blank (a), a counter plate (21) is arranged at one end of the core mold (2), and a stabilizing shaft (3) is fixedly connected with the other end of the core mold (2);
the cooling system is used for cooling a blank (a) extending to the stable shaft (3), the cooling system comprises a gas blowing pipe (5), the gas blowing pipe (5) is arranged in the core mold (2), a plurality of groups of gas blowing holes (22) are formed in the core mold (2), one end of each gas blowing hole (22) extends into an inner cavity of the core mold (2), the other end of each gas blowing hole (22) extends onto the end face of the core mold (2), a sealing guide block (23) is fixedly arranged in the core mold (2), a plurality of groups of gas outlet slits (31) are formed in the surface of the stable shaft (3), each group of gas outlet slits (31) are all arranged along the axial direction of the stable shaft, and the plurality of groups of gas outlet slits (31) are distributed on the circumferential surface of the stable shaft (3) in a circumferential array mode;
the air blowing pipe (5) is used for blowing low-temperature air into the core mold (2), and the low-temperature air enters between the blank (a) extending outside the stabilizing shaft (3) and the outer wall of the stabilizing shaft (3) from the air blowing hole (22) and flows out from the air outlet gap (31);
the inside of the core mold (2) is also provided with a plurality of groups of spoilers (24), the spoilers (24) are positioned between the air blowing pipe (5) and the plugging guide blocks (23), the spoilers (24) are fixedly arranged on the inner wall of the core mold (2), one end, close to the inner cavity of the core mold (2), of the air blowing hole (22) extends to a position between two adjacent spoilers (24), the spoilers (24) are distributed along the axial direction of the core mold (2), and one end, close to the spoilers (24), of the plugging guide blocks (23) is provided with a conical end;
the cooling system still includes refrigerating unit and air supply unit, and air supply unit is the air pump, blow pipe (5) are connected with the air pump through the air supply pipe, main shaft inner chamber and chuck (13) in headstock (11) are passed in blow pipe (5), extend to the inside of mandrel (2), blow pipe (5) and mandrel (2) normal running fit, just the one end and spinning machine (1) fixed mounting of mandrel (2) are extended to blow pipe (5), the inner wall of mandrel (2) is provided with the stepped part, blow pipe (5) pass through bearing and this stepped part normal running fit, still be provided with sealing gasket (25) between the stepped part in blow pipe (5) and mandrel (2), sealing gasket (25) fixed mounting is in mandrel (2), blow pipe (5) run through sealing gasket (25), sealing gasket (25) and blow pipe (5) clearance fit.
2. The spinning device for processing a metal cylindrical part according to claim 1, wherein: the spinning machine (1) further comprises a spindle box (11) and a screw rod guide rail (12), a chuck (13) is arranged on the spindle box (11), one end, close to a counter plate (21), of the core die (2) is fixedly arranged on the chuck (13), a feed box (14) is arranged on the screw rod guide rail (12) in a sliding mode, the spinning wheel (4) is arranged on the feed box (14), a motor screw rod structure is arranged in the screw rod guide rail (12) and is used for moving and driving the feed box (14), a center assembly (15) is further arranged on the screw rod guide rail (12), the center assembly (15) is slidably arranged on the screw rod guide rail (12), a center is arranged on the center assembly (15) in a rotating mode, and the center and the stabilizing shaft (3) are coaxially arranged.
3. The spinning apparatus for processing a metal cylindrical part according to claim 2, wherein: the inner wall of the air blowing pipe (5) is provided with a heat exchange pipe (51), the heat exchange pipe (51) is provided with a refrigerant inlet (511) and a refrigerant outlet (512), the refrigerant inlet (511) and the refrigerant outlet (512) are respectively connected with a pump through a circulating pipe, and the circulating pipe is provided with a refrigerator.
4. A spinning apparatus for processing a metal cylindrical part according to claim 3, wherein: one end of the air blowing pipe (5) close to the plugging guide block (23) is fixedly provided with a guide pipe (52), the guide pipe (52) is of a straight cylinder type structure, and a plurality of groups of spiral rifling lines (521) are arranged in the inner wall of the guide pipe (52).
5. The spinning device for machining a metal cylindrical part according to claim 4, wherein: the oil storage device is characterized in that an oil storage cavity (32) is arranged in the stabilizing shaft (3), a plurality of groups of oil outlet channels (33) are arranged on the side wall of the stabilizing shaft (3), the plurality of groups of oil outlet channels (33) are distributed on the circumferential surface of the stabilizing shaft (3) in a circumferential array, the plurality of oil outlet channels (33) of each group are distributed along the axial direction of the stabilizing shaft, the oil outlet channels (33) of each group are located in the area between two adjacent groups of air outlet slits (31), lubricating grease is stored in the oil storage cavity (32), and the oil outlet channels (33) are used for conveying the lubricating grease in the oil storage cavity (32) to the surface of the stabilizing shaft (3).
6. The spinning device for machining a metal cylindrical part according to claim 5, wherein: the inside slidable mounting of oil outlet channel (33) has accuse oil board (34), the one end that steady axle (3) inner chamber was kept away from to accuse oil board (34) sets up to the arc end, the surface of accuse oil board (34) is provided with L shape passageway (341), L shape passageway (341) are the groove structure on accuse oil board (34) surface, the top of accuse oil board (34) extends to the arc and goes up, the bottom of L shape passageway (341) is the transverse channel, the port and the inner wall of oil outlet channel (33) of this transverse channel cooperate each other, steady axle (3) rotate, the arc end of accuse oil board (34) outwards removes under centrifugal force to make the surface of steady axle (3) is outstanding to accuse oil board (34), when the arc end of inner edge (a 1) on blank (a) process and extrusion accuse oil board (34), the transverse channel of accuse oil board (34) inwards moves, and makes L shape passageway (341) get into oil pocket (32).
7. The spinning apparatus for processing a metal cylindrical part according to claim 6, wherein: the one end that goes out oil channel (33) and be close to oil storage chamber (32) is provided with interior spacing groove (331), the other end that goes out oil channel (33) is provided with outer spacing groove (332), the one end that accuse oil board (34) corresponds interior spacing groove (331) is provided with rigid boss portion (342), the one end fixed mounting that accuse oil board (34) corresponds outer spacing groove (332) has elastic boss portion (343).
8. The spinning apparatus for machining a metal cylindrical part according to claim 7, wherein: the utility model discloses a lubricating grease sealing device for a plastic injection machine, including core mould (2) and stable axle (3), stable axle (3) is kept away from inside fixed mounting of one end of core mould (2) has closing cap (35), form oil storage chamber (32) between closing cap (35) and the shutoff guide block (23), one end slidable mounting that is close to closing cap (35) in oil storage chamber (32) has compression piston (36), and lubricating grease is stored between compression piston (36) and shutoff guide block (23), be provided with pressure elastic component (361) between compression piston (36) and closing cap (35), pressure elastic component (361) are used for providing an elasticity to shutoff guide block (23) compression to compression piston (36), be provided with on closing cap (35) grease nipple (351), grease nipple (351) are connected with compression piston (36) through the hose, and this hose extends to in the lubricating grease between compression piston (36) and the shutoff guide block (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311213766.3A CN116944324B (en) | 2023-09-20 | 2023-09-20 | Spinning device for processing metal cylindrical part |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311213766.3A CN116944324B (en) | 2023-09-20 | 2023-09-20 | Spinning device for processing metal cylindrical part |
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| CN116944324B true CN116944324B (en) | 2023-11-28 |
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|---|---|---|---|---|
| GB1435646A (en) * | 1973-03-05 | 1976-05-12 | Valyi Emery I | Method and apparatus for making oriented hollow plastic articles |
| EP1795277A1 (en) * | 2005-12-07 | 2007-06-13 | Repkon Machine and Tool Industry & Trade Ltd. | Flow-turning machine |
| CN201049372Y (en) * | 2007-04-20 | 2008-04-23 | 中山市科力高自动化设备有限公司 | Pneumatic demoulding device for digital control spinning machine |
| CN101786125A (en) * | 2010-03-23 | 2010-07-28 | 刘江 | Production equipment of thin-wall metal cylinder body |
| CN105813771A (en) * | 2013-12-24 | 2016-07-27 | 川崎重工业株式会社 | Spin forming device |
| CN107377728A (en) * | 2017-07-13 | 2017-11-24 | 安泰天龙钨钼科技有限公司 | Spinning molybdenum crucible fast demoulding core rod device |
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2023
- 2023-09-20 CN CN202311213766.3A patent/CN116944324B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1435646A (en) * | 1973-03-05 | 1976-05-12 | Valyi Emery I | Method and apparatus for making oriented hollow plastic articles |
| EP1795277A1 (en) * | 2005-12-07 | 2007-06-13 | Repkon Machine and Tool Industry & Trade Ltd. | Flow-turning machine |
| CN201049372Y (en) * | 2007-04-20 | 2008-04-23 | 中山市科力高自动化设备有限公司 | Pneumatic demoulding device for digital control spinning machine |
| CN101786125A (en) * | 2010-03-23 | 2010-07-28 | 刘江 | Production equipment of thin-wall metal cylinder body |
| CN105813771A (en) * | 2013-12-24 | 2016-07-27 | 川崎重工业株式会社 | Spin forming device |
| CN107377728A (en) * | 2017-07-13 | 2017-11-24 | 安泰天龙钨钼科技有限公司 | Spinning molybdenum crucible fast demoulding core rod device |
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| CN116944324A (en) | 2023-10-27 |
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