CN102407562B - Equipment for rapid manufacturing process of high-melting-point metal arc spraying ceramic female die - Google Patents
Equipment for rapid manufacturing process of high-melting-point metal arc spraying ceramic female die Download PDFInfo
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- CN102407562B CN102407562B CN 201110394345 CN201110394345A CN102407562B CN 102407562 B CN102407562 B CN 102407562B CN 201110394345 CN201110394345 CN 201110394345 CN 201110394345 A CN201110394345 A CN 201110394345A CN 102407562 B CN102407562 B CN 102407562B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 49
- 238000005507 spraying Methods 0.000 title claims abstract description 43
- 239000002184 metal Substances 0.000 title claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 41
- 239000000919 ceramic Substances 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000741 silica gel Substances 0.000 claims abstract description 21
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- 239000002002 slurry Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 7
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
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- Moulds For Moulding Plastics Or The Like (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a rapid manufacturing process and equipment for a high-melting-point metal arc spraying ceramic female die, which comprises the following specific preparation steps: step 1, manufacturing a master die by a stacking method; step 2, silica gel pouring: placing the female die in a mold frame, supporting the female die between the female die and a mold frame bottom plate by a pouring gate rod, then pouring silica gel or ABS material, and curing for 8-15h at room temperature or curing for 2-6h at 150 ℃ in a curing box; step 3, making a parting surface and taking out a female die: removing the mold frame, manufacturing a parting surface according to the shape characteristics of the female mold, parting the silica gel along the parting surface, and taking out the female mold and the pouring gate rod; step 4, pouring ceramic slurry: and closing the silica gel with the female die taken out along the parting surface, then turning for 180 degrees, pouring the prepared high-temperature-resistant ceramic slurry along the left right hole of the pouring gate rod, taking the left hole of the pouring gate rod as a riser, and after the pouring gate rod is filled with the mold and is solidified at room temperature for 20-26 hours, opening the mold and taking out the reshaped high-temperature-resistant ceramic female die.
Description
Technical field
The present invention relates to manufacture method and the technological equipment of fast mould, particularly a kind of quick manufacturing process and equipment of high-melting metal arc spraying ceramic mould master mold.
Background technology
The metal arc spraying rapid die-manufacturing technology is a kind of mold making technology based on " copying ", it with a mock-up (or being called prototype) as master mold, be thermal source with electric arc, by the metal material atomizing of high velocity air with molten condition, and make its injection, be deposited on the master mold surface, form certain thickness compact metal shell, i.e. the mould shell.The mould shell has accurately copied the shape of prototype, has obtained required mold cavity, after finishing aftertreatment technologys such as reinforcement, the demoulding, polishing, can finish the quick manufacturing of mould.Generally no longer need additional machining after the manufacturing of electric arc spraying mould is finished, just can being directly used in is shaped makes.Also can carry out the numerical control fine finishining of few cutting output according to actual conditions and needs, therefore, the electric arc spraying mold making technology comes down to a kind of " near-net-shape mold making technology ".
The metal spraying mould is standard with the master mold, mold cavity size, geometric accuracy depend on master mold fully, mold cavity surface and meticulous decorative pattern thereof once form simultaneously, so molding speed is fast, the manufacturing cycle is short, and cost is low, have long die life simultaneously, manufacturing cycle is about half of traditional digital control processing, and manufacturing expense can be saved more than 25% at least, becomes the important channel of new product development and small lot batch manufacture.Mold surface finish is good, technology is simple, equipment requires low, relatively be suitable for the quick manufacturing of injection mold, compression mod, sheet-metal press working mould, complicated and have in blowing, plastic uptake, PVC injection, PU foaming and all kinds of injecting molding die of the various polyurethane products of meticulous decorative pattern in surface configuration, the feature details that decorative pattern copies even can reach 5 μ m.
This fast mould manufacturing technology has been widely used in industries such as aircraft, automobile, household electrical appliances, furniture, shoemaking, artistic handicraft using at present.In the U.S. and coastal area of southeastern China, manufacturer has all adopted the electric arc spraying mould to produce on its automatic moulding production equipment at the bottom of nearly all polyurethane shoe.In automobile making, can be used for producing control wheel, automobile instrument panel, cushion, head cushion, spoiler, automotive trim ceiling etc.In recent years, the electric arc spraying mold making technology has begun for the manufacture of stamping die of automotive covering part, the sprayed on material difference, intensity, hardness, precision and the life-span of spraying mould also are not quite similar, thereby range of application also there are differences, the trial-production that is suitable for the automobile sample car that has, have in addition can substitute traditional steel mold at production line and produce.
At home, the material of spraying molding mainly is middle low-melting-point metal, Xi'an Communications University and Yantai Machinery Technology Inst. are domestic research and development unit the earliest, advanced manufacturing technology research institute of Xi'an Communications University, since the nineties, technology for quickly manufacturing models such as surface forming mold making technology, low-melting alloy cast molding mold making technology and resin mould mold making technology are carried out long term studies and practice, and had patent of invention (ZL200810232335.0 in metal spraying by electric arc moulding Rapid tooling; ZL 200810232334.6).Drag in ChangAn Automobile, Luoyang one, on enterprise such as marine suitable, the little vapour in Liuzhou use.Through trial-production check, the 3D data of qualified fast mould use steel mold for the manufacture of producing in enormous quantities, can avoid in the design of steel mold and make repeatedly, guarantee that the steel mold time processing is successful.Patent of invention " a kind of high-melting metal arc spraying rapid die-manufacturing method (patent No. is: ZL 200810232335.0) " has just been introduced the shape and size of determining mother plate substrate according to the shape and size of product, make no roasting ceramic female die matrix with the refractory ceramics raw material, be not described in detail and illustrate as for the prescription of refractory ceramics raw material, the technology that the ceramic mould master mold is made; Patent of invention " a kind of because the concrete fast preparation method (patent No. is: ZL 200810232334.6) of arc spraying mother plate " discloses a kind of fast preparation method for arc spraying mother plate substrate.This mother plate substrate belongs to a kind of magnesite composite, contains light calcined magnesia 41.2～57.7%, industrial hex-ammoniate 15.9～36.1%, and chopped carbon fiber≤2.0%, all the other are water.The master mold that this spraying mother plate substrate material prescription is made does not satisfy the high-temperature heat-resistance performance of high-melting metal arc spraying and the needs of mechanical performance.
For low-melting-point metal in zinc, the allumen etc. sprayed molding, the main semi-hydrated gypsum material that adopts was made blank at present, and drying obtains the spraying master mold by digital control processing.The gypsum cost is low, easily cutting, but the master mold surface spray coating process that pure gypsum material is made is poor, in the gypsum surface spraying of non-modified, occurs coating deposition difficulty easily, phenomenons such as disbonding.In addition, the theoretical water requirement of semi-hydrated gypsum hydration reaction only is 18.6% of its weight, in use in order to make slurry have enough flowabilities, common amount of water is much larger than theoretical water requirement, and it is 35%～45% that β type gypsum water-solid ratio reaches 60%～80%, α type gypsum water-solid ratio, for the full-sized car cladding member mold, gypsum blank weight in wet base reaches several tons, and water content reaches hundreds of kilograms, and its rate of drying and cost will directly influence fabrication cycle and the cost of spraying mould.
Low-melting alloy spraying molding in the utilization, melting point metal is relatively low, and for example, the Zn fusing point is 419 ℃, and Al is 658 ℃, and little to the heat input of mother plate substrate, the master mold surface temperature rise is little, distortion is little, and the master mold surface temperature rise that causes as some material is less than 70 ℃.Therefore, the master mold material can have multiple choices, and timber, resin, gypsum even paper can be used for making master mold.The major defect of this die-manufacturing method is exactly die surface hardness lower (HV46～67), thereby die life is shorter.
For high-melting-point, the molding of high rigidity metal spraying by electric arc; because the fusing point height of sprayed on material (1400～1500 ℃); heat input to mother plate substrate is big, and the master mold surface temperature rise is big, therefore requires the master mold material to have higher heat resistance and certain high temperature mechanical performance.The temperature that metal particle reaches the master mold surface is very high, must adopt high temperature resistant matrix material to make master mold, and master mold also must have elevated temperature strength and lower linear expansion coefficient preferably simultaneously.Comprise low-melting-point metal spraying master mold material in the great majority of common gypsum, all can not can't satisfy the industrial production needs for the spraying of materials with high melting point.Material prescription and the quick manufacturing process of refractory ceramics type master mold are basis and the guarantee of high-melting metal arc spraying rapid die-manufacturing technology.
Summary of the invention
The deficiency that low-melting-point metal electric arc spraying Rapid tooling exists in the present invention is directed to, a kind of quick manufacturing process and equipment of high-melting metal arc spraying ceramic mould master mold are provided, not only manufacturing speed is fast for it, replica precision height, and it is low to have a cost, and good fluidity is high temperature resistant, easily processing, characteristics such as sprayed on material and master mold bond strength height.
For achieving the above object, the present invention adopts following technical scheme:
A kind of quick manufacturing process of high-melting metal arc spraying ceramic mould master mold, concrete preparation process is:
In the described step 1, resin master mold material adopts liquid photosensitive resin, and it is solidified under the irradiation of laser beam fast, makes master mold by stacked accumulation: at first set up the three-dimensional CAD model of master mold, again the discrete layering of threedimensional model; Then, under the control of computer program, utilize the cross sectional shape of mode each aspect of photocuring moulding successively on workbench of laser scanning, every curing one deck, workbench move down a synusia distance, by that analogy; Adopt this mode, finish until whole master mold moulding, after the master mold moulding is finished, close laser instrument, workbench is shifted out liquid level, from workbench, master mold is taken off, again through post processing and repeatedly curing, further improve form accuracy and the bond strength of master mold.
In the described step 4, described refractory ceramics slurry is that hydrolyzate and the stirring of ceramic compound are made, and wherein the mass fraction of hydrolyzate and ceramic compound is 50-60%; Hydrolyzate is the silester of 65-75%, the absolute ethyl alcohol of 8-12%, the hydrochloric acid of 0.5-1%, the acetic acid of 0.5-1%, the glycerine of 0.5-1% by mass fraction, and all the other are that water is formulated; The pottery compound is that 70-80% mixes for ceramic and metal powder by mass percent, and it is mullite, the Al of 20-65 μ m that pottery adopts particle diameter
2O
3It is that the mass fraction of 50-80 μ m, carbon is less than 0.25% iron-carbon alloy that perhaps SiC, metal powder adopt particle diameter.
A kind of quick manufacturing process of high-melting metal arc spraying ceramic mould master mold is with equipping, it comprises board, board is provided with resin box, in resin box, be provided with the workbench of carrying resin master mold prototype, workbench is connected with lowering or hoisting gear, be provided with at the resin box top and strike off device, laser instrument is arranged on and the corresponding position of resin master mold prototype; Lowering or hoisting gear, strike off device and laser instrument and all be connected with the control computer.
Described lowering or hoisting gear comprises leading screw, and the leading screw top is provided with motor, and perpendicular slide block is installed on the leading screw, and perpendicular slider bottom is provided with positioner; Perpendicular slide block is installed on the perpendicular slideway and two columns of the upright back of the body; The leading screw bottom then cooperates with bracing or strutting arrangement; Two columns bottom is stretched in the resin box and with workbench and is connected; Motor is connected with the control computer.
The described device that strikes off comprises strickle, and it is mobile at horizontal guide rail, and horizontal guide rail is arranged on the board; The strickle two ends link to each other with bolt with belt, thereby realize the synchronous of strickle and belt movement, place the stroke piece at belt and strickle connecting place, and belt is connected with belt wheel, and belt wheel is connected with the band driving motor, and the band driving motor is connected with the control computer.
Described workbench is the sheet metal that has a lot of circular apertures, and the angle bar of workbench bottom is suitable with workbench length, by a plurality of screws angle bar and workbench is connected firmly, and angle bar also is connected with column simultaneously.
Described leading screw lower end bracing or strutting arrangement comprises a pair of rolling bearing, and rolling bearing top is bearing holder (housing, cover), and the bottom is bearing (ball) cover, and leading screw places between the rolling bearing.
Described positioner comprises nut, nut and perpendicular slide block Bolt Connection.
Adopt the quick manufacturing process equipment of the high-melting metal arc spraying ceramic mould master mold of technique scheme, under the control of computer program, the liquid resin that utilizes the laser irradiation to mix, every curing one deck, workbench moves down a synusia distance, by that analogy, adopt this mode, finish until whole master mold moulding.Refractory metal mould shell Rapid Manufacturing Technology is the mold making technology of a kind of " copying ", it with refractory ceramics type master mold as matrix, be thermal source with electric arc, by the metal material atomizing of high velocity air with molten condition, spraying particle is sprayed, is deposited on the matrix surface, form certain thickness compact metal coating, i.e. the mould shell.Shell has accurately copied the shape of prototype, has obtained required mold cavity.
The invention has the beneficial effects as follows: compare with low melting point master molds such as existing gypsum moulds, in order to increase the flowability of gypsum slurry, β type gypsum water-solid ratio reaches 60%～80%, α type gypsum water-solid ratio is 35%～45%, for the full-sized car cladding member mold, gypsum blank weight in wet base reaches several tons, and water content reaches hundreds of kilograms, and its rate of drying and cost will directly influence fabrication cycle and the cost of spraying mould.The master mold that uses the present invention to make has the following advantages: not only manufacturing speed is fast, and the cycle is short, and cost is low, and has replica precision height, and good fluidity is high temperature resistant, easily processing, characteristics such as sprayed on material and master mold bond strength height.
The high-melting metal arc spraying ceramic mould master mold anchoring strength of coating height that adopts the present invention program to make, the surface roughness Ra value is less than 3.2 μ m, the replica precision is higher than IT7, good processability, be higher than 1650 ℃ in temperature and still have extraordinary mechanical performance, cost is saved more than 25% at least than gypsum mould master mold, and the cycle is reduced to 1/3～1/5.
From table 1-3 obviously as can be seen, compare with low-melting gypsum mould master mold, the bond strength of resistant to elevated temperatures ceramic mould master mold, resistance to elevated temperatures, replica precision all have remarkable advantages.
Table 1 α type gypsum and the contrast of ceramic mould master mold bond strength
Table 2 α type gypsum and the high temperature resistant contrast of ceramic mould master mold
Table 3 α type gypsum and ceramic mould master mold replica precision and cost contrast
Description of drawings
Fig. 1 is that the method for the stacked accumulation of employing of a kind of embodiment is made the master mold schematic diagram;
Fig. 2 is the silica gel cast schematic diagram of this embodiment;
Fig. 3 is that the making die joint of this embodiment takes out the master mold schematic diagram;
Fig. 4 is the cast ceramics slurry schematic diagram of this embodiment;
Fig. 5 is the ceramic female die schematic diagram after the replica of this embodiment;
Fig. 6 is the quick manufacturing process of this embodiment equipment front view;
Fig. 7 is the quick manufacturing process of this embodiment equipment left view;
Fig. 8 is the quick manufacturing process of this embodiment equipment tape handler, strickle connected mode schematic diagram;
Fig. 9 is the quick manufacturing process of this embodiment drives movable workbench with the equipment ball screw assembly, schematic diagram.
Wherein, 1 resin master mold prototype, 2 silica gel (ABS material), 3 cast containers, 4 runner sticks, 5 type frames, 6 die joints, 7 rising heads, 8 ceramic sizes, 9 funnels, 12 resin box, 13 boards, 14 horizontal guide rails, 15 strickles, 16 power transmission shafts, 17 columns, 18 perpendicular slide blocks, 19 leading screws, 20 motor, the 21 upright back ofs the body, 22 nuts, 23 band drive motors, 24 stroke pieces, 25 belt wheels, 26 belts, 27 angle bar, 28 resins, 29 workbench, 30 laser instruments, 31 laser beams, 32 rolling bearings, 33 perpendicular slideways, 34 bolts, 35 bearing holder (housing, cover)s, 36 bearing (ball) covers.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing and embodiment.
Embodiment 1:
Among Fig. 1-Fig. 5, preparation process is:
1) make the resin master mold with the method for stacked accumulation: the material of resin master mold prototype 1 adopts liquid photosensitive resin 28, it is solidified under the irradiation of laser beam 31 fast, make resin master mold prototype 1 by stacked accumulation, at first set up the three-dimensional CAD model of resin master mold prototype 1, again the discrete layering of threedimensional model, then, under the control of computer program, utilize the cross sectional shape of mode each aspect of photocuring moulding successively on workbench 29 of laser scanning, every curing one deck, workbench 29 moves down a synusia distance, by that analogy, adopt this mode, finish until whole master mold moulding, after the moulding of resin master mold prototype is finished, close laser instrument 30, workbench 29 is shifted out liquid level, from workbench 29, resin master mold prototype 1 is taken off, pass through post processing and regelate again, further improve form accuracy and the bond strength of master mold prototype.
(2) silica gel cast: resin master mold prototype 1 is placed in the type frame 5, and be supported between master mold prototype 1 and type frame 5 base plates with 2 runner sticks 4, pour into a mould silica gel 2 then, at room temperature solidify 15h.
(3) make die joint and take out master mold: dismounting type frame 5, features of shape according to master mold prototype 1, make die joint 6, the purpose of die joint makes master mold prototype 1 be convenient in demoulding from silica gel 2 exactly, do not damage silica gel and master mold prototype, then along die joint 6 usefulness knife blades to the silica gel somatotype, take out master mold prototype 1 and 2 runner sticks 4.
(4) cast ceramics slurry: will take out after the master mold prototype 1 silica gel up and down 2 die cavities along die joint 6 matched moulds, overturn 180 ° then, the right ports that the refractory ceramics slurry 8 for preparing is stayed along runner stick 4 is that cast gate pours into, the left hole that runner stick 4 stays is then as rising head 7, after treating that it fills type, after solidifying 26h under the room temperature, the refractory ceramics master mold after the replica is taken out in die sinking.
Described refractory ceramics slurry 8 is that hydrolyzate and the stirring of ceramic compound are made, and the mass fraction of hydrolyzate and ceramic compound is 60%; Hydrolyzate is 72% silester, 10% absolute ethyl alcohol, 0.5% hydrochloric acid, 0.5% acetic acid, 1% glycerine by mass fraction, and all the other are that water is formulated; The pottery compound is 75% to mix for pottery and metal powder by mass fraction, and pottery employing particle diameter is the mullite (Al of 60 μ m
2O
3-SiO
2), metal powder employing particle diameter is that the mass fraction of 55 μ m, carbon is 0.20% iron-carbon alloy.
Embodiment 2: preparation process is:
(1) make the resin master mold with the method for stacked accumulation: the material of resin master mold prototype 1 adopts liquid photosensitive resin 28, it is solidified under the irradiation of laser beam 31 fast, make resin master mold prototype 1 by stacked accumulation, at first set up the three-dimensional CAD model of resin master mold prototype 1, again the discrete layering of threedimensional model, then, under the control of computer program, utilize the cross sectional shape of mode each aspect of photocuring moulding successively on workbench 29 of laser scanning, every curing one deck, workbench 29 moves down a synusia distance, by that analogy, adopt this mode, finish until whole master mold moulding, after the moulding of resin master mold prototype is finished, close laser instrument 30, workbench 29 is shifted out liquid level, from workbench 29, resin master mold prototype 1 is taken off, pass through post processing and regelate again, further improve form accuracy and the bond strength of master mold prototype.
(2) silica gel cast: resin master mold prototype 1 is placed in the type frame 5, and be supported between master mold prototype 1 and type frame 5 base plates with 2 runner sticks 4, pour into a mould ABS material 2 then, in solidifying case, keep 150 ℃ then and solidify 6h.
(3) make die joint and take out master mold: dismounting type frame 5, features of shape according to master mold prototype 1, make die joint 6, the purpose of die joint makes master mold prototype 1 be convenient in demoulding from ABS material 2 exactly, do not damage ABS material and master mold prototype, along die joint 6 usefulness knife blades ABS is expected somatotype then, take out master mold prototype 1 and 2 runner sticks 4.
(4) cast ceramics slurry: will take out after the master mold prototype 1 the ABS material up and down 2 die cavities along die joint 6 matched moulds, overturn 180 ° then, the right ports that the refractory ceramics slurry 8 for preparing is stayed along runner stick 4 is that cast gate pours into, the left hole that runner stick 4 stays is then as rising head 7, after treating that it fills type, after solidifying 23h under the room temperature, the refractory ceramics master mold after the replica is taken out in die sinking.
Described refractory ceramics slurry is that hydrolyzate and the stirring of ceramic compound are made, and the mass fraction of hydrolyzate and ceramic compound is 55%; Hydrolyzate is 68% silester, 12% absolute ethyl alcohol, 1% hydrochloric acid, 1% acetic acid, 0.5 glycerine by mass fraction, and all the other are that water is formulated; The pottery compound is 70% to mix for pottery and metal powder by mass fraction, and pottery employing particle diameter is the Al of 45 μ m
2O
3, metal powder employing particle diameter is that the mass fraction of 75 μ m, carbon is 0.25% iron-carbon alloy.
As shown in Figure 6, a kind of quick manufacturing process of high-melting metal arc spraying ceramic mould master mold is with equipping, this device is partly to be made of mechanical part and computer control, mechanical part is mainly by the board 13 of horizontal, strickle 15, leading screw 19, the upright back of the body 21, nut 22, belt wheel 25, workbench 29 constitutes; The upright back of the body 21 links to each other with perpendicular slideway 33, and perpendicular slide block 18 can move up and down along perpendicular slideway 33 under the drive of ball-screw nut 22, two columns 17 and perpendicular slide block 18 employing Bolt Connection, and assurance column 17 and nut 22 are synchronized with the movement; Ball-screw nut 22 and perpendicular slide block 18 are used Bolt Connection, and nut 22 moves up and down the perpendicular slide block 18 of drive, column 17 and workbench 29 and moves up and down; Column 17 and workbench 29 utilize angle bar 27 and bolt 34 to connect, and workbench 29 bottom angle bar 27 are suitable with workbench 29 length, utilize screw that angle bar 27 and workbench 29 are connected firmly; Ball-screw 19 lower end supporting constructions are by rolling bearing 32, bearing holder (housing, cover) 35, and bearing (ball) cover 36 is formed, and leading screw 19 upper ends link to each other with motor 20; The board 13 of horizontal is used for placing resin box 12 and horizontal guide rail 14, strickle 15 is mobile at horizontal guide rail 14, strickle 15 two ends link to each other with belt 26 usefulness bolts 34, thereby realize the synchronous of strickle 15 and belt 26 motions, place stroke piece 24 at belt 26 and strickle 15 connecting places, when belt 26 moved to desired location, stroke piece 24 was run into limit switch, made 23 stalls of band drive motor.
The right and left at workbench 29 has a cover tape handler respectively, and these two tape handlers link to each other with band drive motor 23 by power transmission shaft 16, realize the motion of belt 26 and strickle 15.Top, resin box 12 top is provided with laser instrument 30.
As shown in Figure 6 and Figure 7, the quick manufacturing process of this high-melting metal arc spraying ceramic mould master mold is with board 13 and the perpendicular upright back of the body of putting 21 of equipment.Its neutral back of the body 21 links to each other with perpendicular slideway 33, and erecting slide block 18 can move up and down along perpendicular slideway 33.The nut 22 of ball screw assembly, is connected with perpendicular slide block 18, and nut 22 and perpendicular slide block 18 can be synchronized with the movement up and down along perpendicular slideway 33.Connecting two columns 17 in perpendicular slideway 33 both sides, these two columns 17 and ball screw assembly, are synchronized with the movement, and realize the accurately requirement of control workbench 29 motions.Shown in Figure 9 is that the ball screw assembly, of this embodiment drives the schematic diagram that workbench 29 moves, motor 20 links to each other with leading screw 19 upper ends, the nut 22 of ball screw assembly, and perpendicular slide block 18 connect, and leading screw 19 and nut 22 cooperate the perpendicular slide block 18 of drive, column 17 and workbench 29 to move up and down together.Ball-screw 19 lower end supporting constructions are by rolling bearing 32, bearing holder (housing, cover) 35, and bearing (ball) cover 36 is formed.
As shown in Figure 6, in the bottom of column 17, utilize four angle bar 27 and bolt with about two columns 17 and workbench 29 connect, wherein workbench 29 is for having the sheet metal of a lot of circular apertures.Workbench 29 bottom angle bar 27 are suitable with workbench 29 length, utilize a plurality of screws that angle bar 27 and workbench 29 are connected firmly, and can significantly improve the rigidity of workbench.
On the board 13 of horizontal, also place two horizontal guide rails 14, strickle 15 can move horizontally at horizontal guide rail, the reciprocating motion of strickle 15 is to realize by the tape handler of workbench 29 both sides, and tape handler is made of belt wheel 25, belt 26, power transmission shaft 16 and band drive motor 23.
Fig. 8 is tape handler, the strickle connected mode schematic diagram of this embodiment, and strickle 15 two ends link to each other with belt 26 usefulness bolts 34, thereby realizes the synchronous of strickle 15 and belt 26 motions.Place stroke piece 24 at belt 26 and strickle 15 connecting places, when belt 26 moves to desired location, stroke piece 24 is run into limit switch, (limit switch control Strok mechanism is general electrical structure, do not draw) make 23 stalls of band drive motor, can prevent effectively that strickle 15 and resin box 12 from bumping against.
Claims (5)
1. the quick manufacturing process of a high-melting metal arc spraying ceramic mould master mold is with equipping, it comprises board, board is provided with resin box, in resin box, be provided with the workbench of carrying resin master mold prototype, workbench is connected with lowering or hoisting gear, be provided with at the resin box top and strike off device, laser instrument is arranged on and the corresponding position of resin master mold prototype; Lowering or hoisting gear, strike off device and laser instrument and all be connected with the control computer; It is characterized in that,
Described lowering or hoisting gear comprises leading screw, and the leading screw top is provided with motor, and perpendicular slide block is installed on the leading screw, and perpendicular slider bottom is provided with positioner; Perpendicular slide block is installed on the perpendicular slideway and two columns of the upright back of the body; The leading screw bottom then cooperates with bracing or strutting arrangement; Two columns bottom is stretched in the resin box and with workbench and is connected; Motor is connected with the control computer;
The quick manufacturing process of described high-melting metal arc spraying ceramic mould master mold, concrete preparation process is:
Step 1 is made master mold with the method for stacked accumulation;
Step 2, silica gel cast: master mold is placed in the type frame, and be supported between master mold and the type frame bottom plate with runner stick, pour into a mould silica gel or ABS material then, at room temperature solidify 8-15h or in solidifying case, keep 120-150 ℃ and solidify 2-6h;
Step 3, make die joint and take out master mold: dismounting type frame, according to the features of shape of master mold, make die joint, then along die joint to the silica gel somatotype, take out described master mold and runner stick;
Step 4, cast ceramics slurry: will take out silica gel behind the master mold along the die joint matched moulds, overturn 180 ° then, the refractory ceramics slurry for preparing is poured into along the right ports that runner stick stays, the left hole that runner stick stays is then as rising head, after treating that it fills type, solidify 20-26h under the room temperature after, the refractory ceramics master mold after the replica is taken out in die sinking.
2. the quick manufacturing process of high-melting metal arc spraying ceramic mould master mold as claimed in claim 1 is characterized in that with equipment the described device that strikes off comprises strickle, and it is mobile at horizontal guide rail, and horizontal guide rail is arranged on the board; The strickle two ends link to each other with bolt with belt, thereby realize the synchronous of strickle and belt movement, place the stroke piece at belt and strickle connecting place, and belt is connected with belt wheel, and belt wheel is connected with the band driving motor, and the band driving motor is connected with the control computer.
3. the quick manufacturing process of high-melting metal arc spraying ceramic mould master mold as claimed in claim 1 is with equipping, it is characterized in that, described workbench is the sheet metal that has a lot of circular apertures, the angle bar of workbench bottom is suitable with workbench length, by a plurality of screws angle bar and workbench are connected firmly, angle bar also is connected with column simultaneously.
4. the quick manufacturing process of high-melting metal arc spraying ceramic mould master mold as claimed in claim 1 is with equipping, it is characterized in that described leading screw lower end bracing or strutting arrangement comprises a pair of rolling bearing, rolling bearing top is bearing holder (housing, cover), the bottom is bearing (ball) cover, and leading screw places between the rolling bearing.
5. the quick manufacturing process of high-melting metal arc spraying ceramic mould master mold as claimed in claim 1 is characterized in that described positioner comprises nut, nut and perpendicular slide block Bolt Connection with equipment.
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| CN103290436B (en) * | 2013-05-24 | 2015-08-05 | 燕山大学 | A kind of high-meltiing alloy jet-electrodeposited method rapid die-manufacturing method |
| CN107598170B (en) * | 2017-10-10 | 2023-05-05 | 顺德职业技术学院 | Method and apparatus for rapid mold injection molding of metal parts |
| CN108724430A (en) * | 2018-06-15 | 2018-11-02 | 西安交通大学 | A kind of ceramics photocuring 3D printing system and method |
| CN112275993A (en) * | 2020-10-29 | 2021-01-29 | 兰州理工大学 | Low-temperature gel casting material and preparation method thereof |
| CN113523244B (en) * | 2021-07-09 | 2022-04-01 | 邯郸慧桥复合材料科技有限公司 | Solid-liquid composite casting method for weldable bimetal wear-resistant part |
| CN115475911A (en) * | 2022-09-05 | 2022-12-16 | 青岛理工大学 | Casting method of engine body cover |
| CN116394445A (en) * | 2023-02-22 | 2023-07-07 | 南京工业大学 | Re-engraving device and re-engraving method for natural sand particle morphology |
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| CN101434086A (en) * | 2008-11-19 | 2009-05-20 | 西安交通大学 | Method for quickly preparing arc spraying mother plate substrate |
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| US7173079B2 (en) * | 2001-12-07 | 2007-02-06 | Schutz-Dental Gmbh | Casting material for producing casting molds for casting high-melting point materials |
| US6949136B2 (en) * | 2003-04-24 | 2005-09-27 | Precision Metalsmiths, Inc. | High temperature investment material and method for making solid investment molds |
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| CN101434026A (en) * | 2008-11-19 | 2009-05-20 | 西安交通大学 | High-melting metal arc spraying rapid die-manufacturing method |
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Effective date of registration: 20201126 Address after: Group 18, Hainan village, Hai'an town, Hai'an County, Nantong City, Jiangsu Province, 226601 Patentee after: Nantong Tongtu electromechanical Manufacturing Co.,Ltd. Address before: 266033 No. 11, Fushun Road, Sifang District, Shandong, Qingdao Patentee before: Qindao University of Technology |
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