CN110529533B - Spring blank with carbon fiber mandrel in center, processing tool and processing technology - Google Patents
Spring blank with carbon fiber mandrel in center, processing tool and processing technology Download PDFInfo
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- CN110529533B CN110529533B CN201910623415.7A CN201910623415A CN110529533B CN 110529533 B CN110529533 B CN 110529533B CN 201910623415 A CN201910623415 A CN 201910623415A CN 110529533 B CN110529533 B CN 110529533B
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- carbon fiber
- fiber wire
- spring
- ceramic forming
- spring blank
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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
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/14—Casting in, on, or around objects which form part of the product the objects being filamentary or particulate in form
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/021—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant characterised by their composition, e.g. comprising materials providing for particular spring properties
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/06—Wound springs with turns lying in cylindrical surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2226/00—Manufacturing; Treatments
- F16F2226/04—Assembly or fixing methods; methods to form or fashion parts
Abstract
The invention discloses a spring blank with a carbon fiber mandrel at the center, a processing tool and a processing technology. The processing tool comprises a ceramic forming pipe with one end provided with a conical opening, a carbon fiber wire guide pipe which is coaxial with the ceramic forming pipe is arranged on the position, away from the opening end, of the large end of the ceramic forming pipe, a pay-off reel of the carbon fiber wire is arranged in front of the other opening end of the carbon fiber wire guide pipe, and a spring blank cooling mechanism and a carbon fiber wire traction mechanism are arranged at the other end of the ceramic forming pipe. The processing technology comprises the steps that a pay-off reel of the carbon fiber wire, a carbon fiber wire guide pipe, a ceramic forming pipe, a spring blank cooling mechanism and a carbon fiber wire traction mechanism in the tool are sequentially installed on a workbench, and quantitative molten spring steel and steel are poured into the ceramic forming pipe from a metal liquid pouring gate with a conical opening of the ceramic forming pipe.
Description
Technical Field
The invention relates to the technical field of spring processing and manufacturing, in particular to a heavy spring, and particularly relates to a spring blank with a carbon fiber mandrel in the center, a processing tool for the spring blank and a processing technology for the spring blank.
Background
In recent years, the development of heavy machinery towards light weight is urgently required due to the world energy crisis, the price rise of oil and environmental problems, and the aim of realizing light structure by using light materials (or new materials) to replace traditional materials is generally achieved, so that the further improvement of the fuel utilization rate is one of the hot spots of research.
Lightweight materials (or new materials) including high strength steel, aluminum, magnesium and titanium alloys, plastics and composites, and the like; compared with metal materials, carbon fiber composite materials such as carbon fiber reinforced plastics (hereinafter, referred to as CFRP) have advantages of light weight, high rigidity, high strength, high fatigue resistance, wear resistance, vibration resistance and shock and vibration absorption, and have a specific modulus 5 times higher and 3 times higher than those of steel and aluminum alloys, but have a small specific gravity, and the weight per unit volume is only 20% of that of steel. In addition, carbon fiber composite materials have high corrosion resistance and low thermal expansion, are more durable than steel, and are not easily rusted, and heavy equipment manufacturers have actively made attempts to apply light-weight composite materials to interior materials of heavy equipment, housings, springs, and the like.
However, most of the conventional springs (i.e., coil springs) are made by winding only a metal material (steel material), and the manufacturing process is complicated; the spring is mainly characterized in that the spring stores energy and releases energy through a certain conversion mode by virtue of the physical properties of metal materials, so that the spring with the functions of shock absorption and buffering is manufactured, and is applied to parts of various mechanisms and industrial machinery, such as engineering machinery, locomotives and aerospace (CN 103573892A). To meet the demands of industry development, springs made of metal materials alone have been difficult to meet the demands of use, and a bottleneck has been reached from the design, material selection, manufacture and inspection of metal springs. Therefore, it is a trend in industry to prepare a helical spring from a carbon fiber composite material instead of a metal helical spring.
Many researchers have attempted to make coil type springs using CFRP. However, because CFRP is susceptible to compressive or shear stress, it is difficult to produce a helical spring from a single carbon fiber tow to generate sufficient tension to provide a spring body with a rebound force (CN 103388642 a). In addition, the spring made of the carbon fiber composite material faces some challenges, such as poor elasticity, fragility and high anisotropy, which are inherently unsuitable for the spring, so that the manufactured carbon fiber composite material spring has small deformation, low elastic coefficient and small load bearing capacity. Therefore, the special high tensile strength of the carbon fiber composite material is utilized to design a composite material spring with a special structure to achieve large bearing capacity (WO 2014/014481A 1; WO 02/099307A 1; US
2852424A; US 4773633 a; US 8857801B 2; US 7857294B 2; US 5685525 a; US 4260143 a; CN 104690984A; CN 103221199 a). Therefore, it is critical to develop a coil spring structure of carbon fiber composite material that can achieve weight reduction, has excellent durability, and replaces a coil spring made of only a metal material.
The currently mentioned manufacturing method for manufacturing the fiber reinforced composite material helical spring is poor, the operation difficulty is high, the labor hour is consumed, the equipment capital investment is required to be high, the material waste is serious, and the cost of the produced carbon fiber composite material part is high. (EP0637700B 1; US 8490530B 2; CN 1480658A; CN 1651795A; CN 1232931A; CN 101439580A)
In addition, the existing forming die for manufacturing the fiber reinforced composite material spring (EP 2647481A 1; US 4434121A; US 5988612A; US 4473217A; US 6986203B 2; CN 102909870A) has the disadvantages of complex design process, high die opening cost, difficult die filling and demoulding and low production efficiency. In the process of closing and heating the mould, bubbles exist on the surface or inside of the product due to uneven soaking of the carbon fibers by the resin, so that the surface is uneven. In the production process, because resin reaction generates internal stress, the internal stress can not be counteracted without the help of external force, the strength performance of the product can be greatly influenced, and the service life of the product can be directly influenced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a spring blank with a carbon fiber mandrel in the center, a processing tool for the spring blank and a processing technology for the spring blank, wherein the spring blank is simple in structure, light in weight, high in strength, long in service life, strong in corrosion resistance and easy to process.
In order to achieve the purpose, the technical scheme of the invention is to design a spring blank with a carbon fiber mandrel at the center, wherein the section of the spring blank is circular, and the carbon fiber mandrel embedded in a spring material is arranged along the center of the circular section.
In order to improve the tensile strength of the spring and facilitate the forming of the spiral spring, the preferred technical scheme is that the carbon fiber mandrel embedded in the spring blank is a carbon fiber wire or a plurality of carbon fiber wires.
In order to enable the spiral spring to have a high supporting effect and absorb the self vibration of the spring in the movement process, the technical scheme is further preferably that the plurality of carbon fiber wires are in a torsional shape, and the number of torsional turns is 15-60 turns/m.
In order to enable the spring to have enough strength and rigidity while reducing the weight, the ratio of the diameter of the circular section of the spring blank to the diameter of the single carbon fiber mandrel is 10: 1-5: 1.
In order to use the spring with the carbon fiber mandrel in heavy engineering machinery, a further preferable technical scheme is that the material of the spring blank wrapped outside the mandrel is spring steel.
In order to be capable of simply and quickly embedding a carbon fiber wire in the center of spring steel at low cost to form a blank for machining a spiral spring, the invention also provides a spring blank forming tool with a carbon fiber mandrel in the center, wherein the tool comprises a ceramic forming pipe with a conical opening from small to large, a carbon fiber wire guide pipe coaxial with the ceramic forming pipe is arranged at the position, 30-50 mm away from the opening end, of the large end of the conical opening of the ceramic forming pipe, one opening end of the carbon fiber wire guide pipe faces the large end of the conical opening of the ceramic forming pipe, a pay-off reel of the carbon fiber wire is arranged in front of the other opening end of the carbon fiber wire guide pipe, and a spring blank cooling mechanism and a carbon fiber wire traction mechanism are arranged at the other end of the ceramic forming pipe; the tool is also provided with a lead needle which is used for leading out the carbon fiber wire from the pay-off reel, then penetrating through the carbon fiber wire guide tube and the ceramic forming tube and clamping the carbon fiber wire on the traction mechanism of the carbon fiber wire.
In order to enable the carbon fiber mandrel to be positioned at the central part of the spring leather, the spring steel must be melted into liquid, then the melted metal liquid is poured into a high-temperature resistant ceramic forming tube with a carbon fiber wire prefabricated in the center through a pouring gate, the length of the pipeline is not too long, so that the metal liquid flowing into the pipeline is prevented from being retained and cannot form smooth flowing, and the preferable technical scheme is that a metal liquid pouring gate is arranged on one side of the ceramic forming tube, which is positioned at the large end of the conical opening.
In order to embed a carbon fiber wire in the center of spring steel simply, quickly and at low cost to form a blank for machining a spiral spring, the invention also provides a machining process of the spring blank with the carbon fiber mandrel in the center, wherein the machining process of the spring blank comprises the following process steps:
s1, sequentially installing a pay-off reel of the carbon fiber wire, a carbon fiber wire guide tube, a ceramic forming tube, a spring blank cooling mechanism and a carbon fiber wire traction mechanism on a workbench;
s2, fixing the end part of the carbon fiber wire at one end of a thread guiding needle in the tool, sequentially penetrating the other end of the thread guiding needle through a carbon fiber wire guiding tube and a ceramic forming tube, and then detaching one end of the carbon fiber wire from one end of the thread guiding needle and clamping the carbon fiber wire on a traction mechanism of the carbon fiber wire;
s3, pouring a certain amount of molten spring steel into the ceramic forming tube from a molten metal pouring gate at the large end side of the conical opening of the ceramic forming tube in the tool set forth in claim 7;
s4, when the molten metal extends out from the other end of the ceramic forming tube, starting a spring blank cooling mechanism in the tool to rapidly cool the formed molten metal extending out of the ceramic forming tube;
s5, when the spring blank cooling mechanism is started, the traction mechanism of the carbon fiber wire in the tool is started to draw the carbon fiber wire to move along a straight line, and the moving speed is the same as the extending speed of the molten metal from the other end of the ceramic forming tube;
s6, cutting the carbon fiber wires after the molten spring steel extends out of the other end of the ceramic forming tube;
and S7, detaching the formed spring blank with the carbon fiber mandrel clamped in the center from the workbench, resetting the traction mechanism of the carbon fiber wire, and clamping the end part of the cut carbon fiber wire on the traction mechanism of the carbon fiber wire again to perform casting forming of the next spring blank.
In order to avoid retention of metal liquid flowing into the pipeline, smooth flowing of metal can be formed, and the preferred technical scheme is that the workbench is obliquely arranged, and the inclination angle is 15-30 degrees.
In order to facilitate the rapid shaping of the metal liquid flowing out of the ceramic forming pipe and avoid the retention of the metal liquid flowing into the pipeline, the metal can form smooth flow, and the spring blank cooling mechanism further preferably comprises a water spraying mechanism formed by sequentially connecting a water tank, a water pump, a water pipe and a spray head; the carbon fiber line tractor mechanism comprises a clamp, a nut connected with the clamp, a lead screw in threaded fit with the nut, and a driving motor connected with the lead screw, the clamp and the workbench are in sliding fit with a sliding rail through a sliding block, and the driving motor is installed on a rack of the workbench. The traction mechanism of the carbon fiber wire can keep the whole spring blank concentric with the ceramic forming pipe from head to tail, namely, the whole spring blank is positioned in the center of the spring cladding, and meanwhile, the traction mechanism can also play a role in drawing the blank which flows out of the ceramic forming pipe and is cooled, and the metal liquid moving forwards can be prevented from being detained in the inflow pipeline, so that the metal can form smooth flowing.
The invention has the advantages and beneficial effects that: the spring blank, the processing tool of the spring blank and the processing technology of the spring blank have the advantages of being simple in structure, capable of reducing the weight of the spring, improving the strength of the spring, prolonging the service life of the spring, capable of improving the corrosion resistance of the spring and enabling the spring to be easy to process.
Drawings
FIG. 1 is a schematic structural view of a spring with a carbon fiber mandrel at the center of the spring according to the present invention;
fig. 2 is a schematic top view of the carbon fiber mandrel spring blank machining tool provided with the carbon fiber mandrel at the center.
In the figure: 1. a carbon fiber mandrel; 2. a spring; 3. a ceramic forming tube; 4. a carbon fiber wire guide tube; 5. a pay-off reel; 6. a spring blank cooling mechanism; 7. a carbon fiber wire pulling mechanism; 8. a thread guide needle; 9. a molten metal pouring gate; 10. a work bench.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 and 2, the invention relates to a blank of a spring 2 with a carbon fiber mandrel 1 at the center, wherein the section of the spring blank is circular, and the carbon fiber mandrel 1 embedded in the spring material is arranged along the center of the circular section.
In order to improve the tensile strength of the spring and facilitate the forming of the spiral spring, the invention has the preferred embodiment that the carbon fiber mandrel 1 embedded in the spring blank can only be one carbon fiber wire or a plurality of carbon fiber wires, and the preferred technical scheme is 5-10.
In order to enable the spiral spring to have a high supporting effect and absorb the self vibration in the movement of the spring, the invention further preferably adopts the embodiment that the plurality of carbon fiber wires are in a twisting shape, and the number of twisting turns is 15-60 turns/m.
In order to make the spring have enough strength and rigidity while reducing the weight, the ratio of the diameter of the circular section of the spring blank to the diameter of the single carbon fiber mandrel is 10: 1-5: 1, and 8:1 is preferred.
In order to be able to use the spring with the carbon fiber mandrel in heavy construction machinery, a further preferred embodiment of the invention provides that the material of the spring blank wrapped around the mandrel is spring steel.
As shown in fig. 2, in order to be able to simply and quickly embed a carbon fiber wire in the center of spring steel at low cost to form a blank for processing a coil spring, the invention also provides a carbon fiber mandrel spring blank forming tool, wherein the center of the tool is provided with a carbon fiber mandrel spring blank forming tool, the tool comprises a ceramic forming tube 3 with one end provided with a conical opening from small to large, a carbon fiber wire guide tube 4 coaxial with the ceramic forming tube 3 is arranged at a position, which is 30-50 mm away from the large end of the conical opening, of the ceramic forming tube 3, one open end of the carbon fiber wire guide tube 4 faces the large end of the conical opening of the ceramic forming tube 3, a pay-off reel 5 for the carbon fiber wire is arranged in front of the other open end of the carbon fiber wire guide tube 4, and the other end of the ceramic forming tube 3 is provided with a spring; the tool is also provided with a lead needle 8 which is used for leading out the carbon fiber wire from the pay-off reel 5, then penetrates through the carbon fiber wire guide tube 4 and the ceramic forming tube 3 and clamps the carbon fiber wire on the traction mechanism 7 of the carbon fiber wire.
In order to enable the carbon fiber mandrel 1 to be positioned at the central part of the spring leather, the spring steel must be melted into liquid, then the melted metal liquid is poured into the high-temperature resistant ceramic forming tube 3 with the carbon fiber wire prefabricated in the center through the pouring gate 9, the length of the ceramic forming tube is not too long, so that the metal liquid flowing into the pipeline is prevented from being retained, and smooth flowing cannot be formed.
In order to embed a carbon fiber wire in the center of spring steel simply, quickly and at low cost to form a blank for machining the spiral spring 2, the invention also provides a machining process of the spring blank with the carbon fiber mandrel in the center, wherein the machining process of the spring blank comprises the following process steps:
s1, sequentially installing the pay-off reel 5 of the carbon fiber wire, the carbon fiber wire guide tube 4, the ceramic forming tube 3, the spring blank cooling mechanism 6 and the carbon fiber wire traction mechanism 7 on the workbench 10;
s2, fixing the end part of the carbon fiber wire at one end of a threading needle 8 in the tool, sequentially penetrating the carbon fiber wire guide tube 4 and the ceramic forming tube 3 by the other end of the threading needle 8, and then removing one end of the carbon fiber wire from one end of the threading needle 8 and clamping the end of the carbon fiber wire on a traction mechanism 7 of the carbon fiber wire;
s3, pouring a certain amount of molten spring steel (molten steel required for pouring a spring blank) into the ceramic forming tube 3 from the molten metal pouring gate 9 at the large end side of the conical opening of the ceramic forming tube 3 in the tool;
s4, when the molten metal extends out from the other end of the ceramic forming tube 3, starting the spring blank cooling mechanism 6 in the tool to rapidly cool the formed molten metal extending out of the ceramic forming tube 3;
s5, when the spring blank cooling mechanism 7 is started, the traction mechanism 7 of the carbon fiber wire in the tool is started to draw the carbon fiber wire to move along a straight line, and the moving speed is the same as the extending speed of the molten metal from the other end of the ceramic forming tube 3;
s6, cutting the carbon fiber wires after the molten spring steel extends out of the other end of the ceramic forming tube 3;
and S7, detaching the formed spring blank with the carbon fiber mandrel 1 clamped at the center from the workbench 10, resetting the traction mechanism 7, and clamping the end part of the cut carbon fiber wire on the traction mechanism 7 again to perform casting forming of the next spring blank.
In order to avoid the retention of the metal liquid flowing into the pipeline and facilitate the metal to form smooth flow, the preferred embodiment of the invention is that the worktable 10 is arranged obliquely, and the inclination angle is 15-30 degrees, and is preferably 18 degrees.
In order to facilitate the rapid shaping of the metal liquid flowing out of the ceramic forming pipe, avoid the retention of the metal liquid flowing into the pipeline and facilitate the smooth flowing of the metal, the spring blank cooling mechanism 6 further comprises a water spraying mechanism formed by sequentially connecting a water tank, a water pump, a water pipe and a spray head; the carbon fiber line tractor mechanism 7 comprises a clamp, a nut connected with the clamp, a lead screw in threaded fit with the nut, and a driving motor connected with the lead screw, the clamp is in sliding fit with the workbench through a sliding block and a sliding rail, and the driving motor is installed on a rack of the workbench. The traction mechanism 7 of the carbon fiber wire can keep the whole spring blank concentric with the ceramic forming pipe from head to tail, namely, the whole spring blank is positioned in the center of the spring cladding, and meanwhile, the traction mechanism can also play a role in drawing the blank which flows out of the ceramic forming pipe and is cooled, and moves forwards to avoid the retention of metal liquid flowing into the pipeline, so that the metal can form smooth flow.
After the carbon fiber mandrel spring blank is arranged in the center, the blank can be subjected to hot rolling or cold rolling or forging and pressing treatment, then the spring blank is placed in a tip rolling machine to be forged, then the spring blank is heated in a medium-frequency heating furnace, then a hot spring coiling machine is used for coil coiling, then the spring blank is quenched in a quenching furnace, is quenched and cooled, then is tempered in a tempering furnace, is pressed down for 1 time by a first hydraulic machine, then the section of the spring is ground flat, then is subjected to shot blasting treatment and flaw detection after shot blasting, is pressed down for 3 times by a second hydraulic machine, and finally is sprayed with a protective layer, so that the whole process of spring processing can be completed.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A spring blank forming tool with a carbon fiber mandrel in the center is characterized by comprising a ceramic forming pipe with one end provided with a conical opening from small to large, a carbon fiber wire guide pipe coaxial with the ceramic forming pipe is arranged at a position, 30-50 mm away from the opening end, of the large end of the conical opening of the ceramic forming pipe, one opening end of the carbon fiber wire guide pipe faces the large end of the conical opening of the ceramic forming pipe, a pay-off reel of a carbon fiber wire is arranged in front of the other opening end of the carbon fiber wire guide pipe, and a spring blank cooling mechanism and a carbon fiber wire traction mechanism are arranged at the other end of the ceramic forming pipe; the tool is also provided with a lead needle which is used for leading out the carbon fiber wire from the pay-off reel, then penetrating through the carbon fiber wire guide tube and the ceramic forming tube and clamping the carbon fiber wire on the traction mechanism of the carbon fiber wire.
2. The tooling for forming the spring blank with the carbon fiber mandrel at the center according to claim 1, wherein the section of the spring blank is circular, and the carbon fiber mandrel embedded in the spring material is arranged along the center of the circular section.
3. The spring blank forming tool with the carbon fiber mandrel arranged in the center according to claim 2, wherein the carbon fiber mandrel embedded in the spring blank is a carbon fiber wire or a plurality of carbon fiber wires.
4. The tooling for forming the spring blank with the carbon fiber mandrel at the center according to claim 3, wherein the carbon fiber wires are twisted, and the number of the twisting turns is 15-60 turns/m.
5. The carbon fiber mandrel spring blank forming tool is arranged in the center of claim 4, wherein the ratio of the diameter of the circular section of the spring blank to the diameter of a single carbon fiber mandrel is 10: 1-5: 1.
6. The tooling of claim 5, wherein the spring blank is wrapped around the mandrel and is made of spring steel.
7. The tooling of claim 1, wherein a molten metal pouring opening is provided on the side of the ceramic forming tube at the large end of the tapered opening.
8. A machining process for a spring blank with a carbon fiber mandrel in the center is characterized by comprising the following process steps:
s1, sequentially installing a pay-off reel of the carbon fiber wire, a carbon fiber wire guide tube, a ceramic forming tube, a spring blank cooling mechanism and a carbon fiber wire traction mechanism on a workbench in the tool of claim 7;
s2, fixing the end part of the carbon fiber wire at one end of a threading needle in the tool of claim 7, sequentially penetrating a carbon fiber wire guide tube and a ceramic forming tube by the other end of the threading needle, and then removing one end of the carbon fiber wire from one end of the threading needle to clamp the carbon fiber wire on a traction mechanism of the carbon fiber wire;
s3, pouring a certain amount of molten spring steel into the ceramic forming tube from a molten metal pouring gate at the large end side of the conical opening of the ceramic forming tube in the tool set forth in claim 7;
s4, when the molten metal extends out from the other end of the ceramic forming tube, starting a spring blank cooling mechanism in the tool of claim 7 to rapidly cool the formed molten metal extending out of the ceramic forming tube;
s5, starting a traction mechanism of the carbon fiber wire in the tool of claim 7 to draw the carbon fiber wire to move linearly while the spring blank cooling mechanism is started, wherein the moving speed is the same as the extending speed of the molten metal from the other end of the ceramic forming tube;
s6, cutting the carbon fiber wires after the molten spring steel extends out of the other end of the ceramic forming tube;
and S7, detaching the formed spring blank with the carbon fiber mandrel clamped in the center from the workbench, resetting the traction mechanism of the carbon fiber wire, and clamping the end part of the cut carbon fiber wire on the traction mechanism of the carbon fiber wire again to perform casting forming of the next spring blank.
9. The process for manufacturing a spring blank with a carbon fiber mandrel disposed in the center according to claim 8, wherein the worktable is inclined at an angle of 15 ° to 30 °.
10. The process for machining the spring blank with the carbon fiber mandrel arranged in the center according to claim 9, wherein the spring blank cooling mechanism comprises a water spraying mechanism formed by sequentially connecting a water tank, a water pump, a water pipe and a spray head; the carbon fiber line tractor mechanism comprises a clamp, a nut connected with the clamp, a lead screw in threaded fit with the nut, and a driving motor connected with the lead screw, the clamp and the workbench are in sliding fit with a sliding rail through a sliding block, and the driving motor is installed on a rack of the workbench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910623415.7A CN110529533B (en) | 2019-07-11 | 2019-07-11 | Spring blank with carbon fiber mandrel in center, processing tool and processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910623415.7A CN110529533B (en) | 2019-07-11 | 2019-07-11 | Spring blank with carbon fiber mandrel in center, processing tool and processing technology |
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| Publication Number | Publication Date |
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| CN110529533A CN110529533A (en) | 2019-12-03 |
| CN110529533B true CN110529533B (en) | 2021-01-12 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020190451A1 (en) * | 2001-06-01 | 2002-12-19 | The University Of Akron | Fiber-reinforced composite springs |
| CN102278400A (en) * | 2011-06-03 | 2011-12-14 | 贺智挺 | Glass fibre spring and manufacture method thereof |
| US10240654B2 (en) * | 2013-04-03 | 2019-03-26 | Mubea Carbo Tech Gmbh | Hybrid spring device |
| US20150226279A1 (en) * | 2014-02-12 | 2015-08-13 | Peter Robert Scholar | Spring having a core structure |
| CN204419954U (en) * | 2014-12-05 | 2015-06-24 | 江门市德山复合材料科技有限公司 | A kind of glass fibre reinforced plastics Compress Spring |
| CN206287541U (en) * | 2016-11-30 | 2017-06-30 | 上海工程技术大学 | Carbon fibre composite helical spring and its mould |
| CN208057776U (en) * | 2018-04-20 | 2018-11-06 | 嘉兴泰恩弹簧有限公司 | A kind of superelevation service life S type spring |
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