CN109483422A - A kind of grinding wheel cold-hot pressure one-shot forming technique - Google Patents
A kind of grinding wheel cold-hot pressure one-shot forming technique Download PDFInfo
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- CN109483422A CN109483422A CN201811618441.2A CN201811618441A CN109483422A CN 109483422 A CN109483422 A CN 109483422A CN 201811618441 A CN201811618441 A CN 201811618441A CN 109483422 A CN109483422 A CN 109483422A
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- cold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
- B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
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Abstract
The present invention relates to cold-hot pressure field shaping technique, especially a kind of grinding wheel cold-hot pressure one-shot forming technique includes the following steps；Step 1: ingredient；Step 2: mixing；Above-mentioned material is proportionally poured into mixed organization, using mixed organization to material carry out preliminary crushing with mix；Step 3: grinding: the material mixed being poured into milling mechanism, using grinding, mechanism carries out grinding 5-8h to mixed material；Step 4: first cold pressing；Step 5: secondary cold pressing；Step 6: preheating；Step 7: first hot pressing: carrying out first time hot pressing using 3000 tons of hot presses；Step 8: carrying out secondary hot pressing molding after 3000 tons of hot presses are warming up to 160 DEG C again, moulding process of the present invention is simple to operation, it is environmentally friendly, it is suitble to industrialization, the Wheel hardness of production is high, and abrasive grain is sharp, thermal conductivity is preferable, wearability is stronger, effectively prevents the loss of bonding agent, improves the hardness and mechanical strength of grinding wheel.
Description
Technical field
The present invention relates to cold pressing thermoforming process technical field more particularly to a kind of grinding wheel cold-hot pressure one-shot forming techniques.
Background technique
Grinding wheel is also known as bonded abrasive tool, and grinding wheel is conventional abrasive material to be consolidated into certain shapes by bonding agent, and have certain strong
The bonded abrasive tool of degree is generally made of abrasive material, bonding agent and stomata, this three parts is frequently referred to the three elements of bonded abrasive tool, is pressed
According to the different classifications of bonding agent, ceramic (bonding agent) grinding wheel, resin (bonding agent) grinding wheel, rubber (bonding agent) sand common are
Wheel, grinding wheel are one kind that dosage is maximum in grinding tool, using face is most wide, high speed rotation when use, can be to metal or non-metal workpiece
Outer circle, inner circle, plane and various type faces etc. roughly ground, half refines and fine grinding and fluting and cutting etc.；
Plain wheel production when, using after cold pressing directly it is hot-forming, such Wheel hardness is not high, mainly hot pressing
In have part bonding agent in the case where big pressure, escaped from grinding wheel blank, both reduce Wheel hardness, also reduce grinding wheel
Mechanical strength, cause waste of material, increase the difficulty of production process.
Summary of the invention
The purpose of the present invention is to provide a kind of grinding wheel cold-hot pressure one-shot forming techniques, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the goals above, present invention employs following technical solutions:
A kind of grinding wheel cold-hot pressure one-shot forming technique is designed, is included the following steps；
Step 1: ingredient: including major ingredient according to weight percent: brown corundum abrasive 10-15%, rose grain 15-20%, carbonization
Silicon 28-40%, polyvinyl butyral resin 5-10%, abrasive material bonding agent 2-5%, vanadium iron powder 5-10%；
Step 2: mixing: above-mentioned material proportionally being poured into mixed organization, is carried out using mixed organization to material preliminary
Crushing with mix；
Step 3: grinding: the material mixed being poured into milling mechanism, using grinding, mixed material grinds in mechanism
Grind 5-8h；
Step 4: first cold pressing: installing matrix in a mold, the mixture after total mix is added to cold pressing through weighing, stocking process
Integrated compression moulding is carried out in the mold of molding equipment；
Step 5: secondary cold pressing: after first cold moudling, natural cooling 2-5h, then passes to cold air progress in a natural environment
It is quickly cooled down 3-4h；
Step 6: preheating: preheated using 3000 tons of hot presses, temperature be gradually warmed up from initial 0 DEG C height to 120 DEG C, with
The speed that temperature per minute increases 30 DEG C is increased to 120 DEG C, and whole process is completed in closed environment；
Step 7: first hot pressing: carrying out first time hot pressing using 3000 tons of hot presses；
Step 8: carrying out secondary hot pressing molding after 3000 tons of hot presses are warming up to 160 DEG C again.
Preferably, mixed organization described in step 2 includes cabinet, and the top dead center position of the cabinet is welded with feed hopper,
It is welded with rectangular box on front side of the cabinet, is connected with the one of the first cylindrical shaft along the longitudinal direction on the left of the inner cavity of the cabinet
End, and the other end of the first cylindrical shaft extends the inner cavity into rectangular box, axis connects along the longitudinal direction on the inner cavity right side of the cabinet
There is one end of the second cylindrical shaft, and the other end of the second cylindrical shaft is welded through cabinet and rectangular box and the output end of first motor
It connects, interference fit is meshed respectively on the first cylindrical shaft of the rectangular box lumen portion and the outer wall of the second cylindrical shaft
First gear and second gear, the equal mistake on first cylindrical shaft at the cabinets cavity position and the outer wall of the second cylindrical shaft
It is full of and is combined with crushing shaft, the right side bottom end screw of the cabinet is connected with the second motor, the output end welding of second motor
There is stirring rod, and the left end of stirring rod extends into the inner cavity of cabinet, the discharge port position of the cabinet is plugged with baffle.
Preferably, milling mechanism described in step 3 includes spill case, and the lower surface of the spill case is reserved with strip groove, institute
The outer wall top for stating spill case is welded with outer container, and the inner cavity bottom end of the spill case is plugged with arc-shaped seat, the top of the spill case
The end left and right sides is welded with rack gear, and the top engagement of the rack gear is connected with H-shaped gear, edge between two H-shaped gears
Left and right directions is welded with round bar, and casing is connected on the outer wall of the round bar, the one of hydraulic cylinder is welded on rear side of the casing
End, and the inner wall of the other end of hydraulic cylinder and outer container welds, the top dead center position of the casing is welded with sliding block, and sliding block
Upper half branch is embedded in the reserved sliding slot in outer container lower surface, and interference is matched on the outer wall of the round bar of the casing lumen portion
Conjunction has the first angular wheel, and engagement is connected with the second angular wheel, second taper on the outer wall of first angular wheel
The bottom end of gear is welded with column axis, and the bottom end of column axis is extended casing and connect with casing axis, the bottom end of the column axis
It is welded with and rolls block, the outer wall bottom end of the spill case is welded with storage bin.
Preferably, the section of the sliding block is in the shape of a " convex ".
Preferably, the block that rolls is semicircle, and the lower surface for rolling block is in contact with arc-shaped seat.
Preferably, limit grinding layer material, core material can be put into step 3, when milling respectively and places reinforcement steel
Ring, the reinforcement steel loop can effectively improve the mechanical strength of grinding wheel.
A kind of grinding wheel cold-hot pressure one-shot forming technique proposed by the present invention, beneficial effect are:
1, moulding process of the present invention is simple to operation, environmentally friendly, is suitble to industrialization, the Wheel hardness of production is high, abrasive grain cutting edge of a knife or a sword
Benefit, thermal conductivity is preferable, and wearability is stronger；
2, after the present invention passes through cold moudling twice, first time hot pressing are carried out in 3000 tons of hot presses by the way of pre- hot pressing,
Temperature is 120 DEG C, then secondary hot pressing forms after being warming up to 160 DEG C, effectively prevents the loss of bonding agent, improves the hard of grinding wheel
Degree and mechanical strength；
3, the present invention can be crushed by mixed organization before raw material mixing, can be made raw material mixing more evenly, be mixed
Expect that effect is preferable, it is ensured that subsequent technique is gone on smoothly；
4, the present invention can mill to mixed raw material by milling mechanism, make adequately to be milled into powder between raw material
End is milled mixed raw material more uniform, the grinding wheel uniform quality of last compression moulding.
Detailed description of the invention
Fig. 1 is milling mechanism structural schematic diagram of the present invention；
Fig. 2 is mixed organization structural schematic diagram of the present invention；
Fig. 3 is mixed organization overlooking structure diagram of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-3, a kind of grinding wheel cold-hot pressure one-shot forming technique, includes the following steps；
Step 1: ingredient: include major ingredient according to weight percent: brown corundum abrasive 15%, rose grain 20%, silicon carbide 40%,
Polyvinyl butyral resin 10%, abrasive material bonding agent 5%, vanadium iron powder 10%；
Step 2: mixing: above-mentioned material proportionally being poured into 2 in mixed organization, is carried out using mixed organization 2 to material
Preliminary crushing with mix；
Mixed organization 2 described in step 2 includes cabinet 201, and the top dead center position of the cabinet 201 is welded with feed hopper 206,
The front side of the cabinet 201 is welded with rectangular box 212, is connected with the first circle on the left of the inner cavity of the cabinet 201 along the longitudinal direction
One end of axis of a cylinder 208, and the other end of the first cylindrical shaft 208 extends into the inner cavity of rectangular box 212, the cabinet 201 it is interior
One end of the second cylindrical shaft 207 is connected on the right side of chamber along the longitudinal direction, and the other end of the second cylindrical shaft 207 runs through cabinet 201
It is welded with rectangular box 212 and the output end of first motor 209, positioned at the first cylindrical shaft 208 of 212 lumen portion of rectangular box
There are the first gear 212 and second gear 210 being meshed with being interference fitted respectively on the outer wall of the second cylindrical shaft 207, is located at institute
It states to be interference fitted on first cylindrical shaft 208 at 201 inner cavity position of cabinet and the outer wall of the second cylindrical shaft 207 and has crushing shaft 202,
The right side bottom end screw of the cabinet 201 is connected with the second motor 203, and the output end of second motor 203 is welded with stirring
Bar 205, and the left end of stirring rod 205 extends into the inner cavity of cabinet 201, the discharge port position of the cabinet 201 is plugged with baffle
204；
Raw material is poured into cabinet by feed hopper 206 by the external power supply that first motor 209 and the second motor 203 are connected when mixing
In 201, since first motor 209 rotates clockwise, the second cylindrical shaft 207 can be driven to follow and rotated clockwise, because second
Gear 210 is engaged with first gear 212 to be connected, and promotes first gear 212 to rotate counterclockwise, can make two crushing shafts 202 1
It is a to rotate clockwise another and rotate counterclockwise, raw material can be clipped and crushed, smashed raw material by stirring rod 205 into
Row is mixed, and twitches out the feedstock transportation that will be mixed from the discharge port of cabinet 201 for baffle 204 after mixing and goes out
Come；
Step 3: grinding: the material mixed being poured into milling mechanism 1, is carried out using grinding mechanism 1 to mixed material
5-8h is ground, in step 3, limit grinding layer material, core material can be put into when milling respectively and place reinforcement steel loop, it should
Reinforcement steel loop can effectively improve the mechanical strength of grinding wheel；
Milling mechanism 1 described in step 3 includes spill case 109, and the lower surface of the spill case 109 is reserved with strip groove 107, institute
The outer wall top for stating spill case 109 is welded with outer container 101, and the inner cavity bottom end of the spill case 109 is plugged with arc-shaped seat 105, institute
It states and is welded with rack gear 102 at left and right sides of the top of spill case 109, the top engagement of the rack gear 102 is connected with H-shaped gear
110, it is welded with round bar 114 in left-right direction between two H-shaped gears 110, is connected with set on the outer wall of the round bar 114
Case 112, the rear side of the casing 112 is welded with one end of hydraulic cylinder, and the inner wall of the other end of hydraulic cylinder and outer container 101 welds
It connects, the top dead center position of the casing 112 is welded with sliding block 113, and the upper half branch of sliding block 113 is embedded under outer container 101
In the reserved sliding slot in surface, the section of the sliding block 113 is in the shape of a " convex ", positioned at the round bar 114 of 112 lumen portion of casing
Outer wall on interference fit have the first angular wheel 111, engagement is connected with the second cone on the outer wall of first angular wheel 111
Shape gear 103, the bottom end of second angular wheel 103 is welded with column axis 108, and set is extended in the bottom end of column axis 108
It case 112 and is connect with 112 axis of casing, the bottom end of the column axis 108, which is welded with, rolls block 106, and the block 106 that rolls is semicircle
Shape, and the lower surface for rolling block 106 is in contact with arc-shaped seat 105, the outer wall bottom end of the spill case 109 is welded with storage bin
104；
Raw material is poured on arc-shaped seat 105, the external power supply of hydraulic cylinder is connected, opening hydraulic cylinder can make it drive casing 112
Front and back moves back and forth, and is engaged and is connected with rack gear 102 due to H-shaped gear 110 when casing 112 is mobile, H-shaped gear 110 is promoted to exist
Rack gear 102 rolls, and round bar 114 can be driven to rotate, and is engaged and is connected with the second angular wheel 103 by the first angular wheel 111,
Promote column axis 108 to rotate, can make to roll the rotation of block 106, reaching while rolling the reciprocal running in 106 front and back of block can be around
Own axis can reinforce the effect milled and efficiency, make to mill more evenly, mill afterwards by arc-shaped seat 105 from recessed
It twitches to come out in shape case 109 and material is collected；
Step 4: first cold pressing: installing matrix in a mold, the mixture after total mix is added to cold pressing through weighing, stocking process
Integrated compression moulding is carried out in the mold of molding equipment；
Step 5: secondary cold pressing: after first cold moudling, natural cooling 4h, then passes to cold air and carries out fastly in a natural environment
Quickly cooling but 3h；
Step 6: preheating: preheated using 3000 tons of hot presses, temperature be gradually warmed up from initial 0 DEG C height to 120 DEG C, with
The speed that temperature per minute increases 30 DEG C is increased to 120 DEG C, and whole process is completed in closed environment；
Step 7: first hot pressing: carrying out first time hot pressing using 3000 tons of hot presses；
Step 8: carrying out secondary hot pressing molding after 3000 tons of hot presses are warming up to 160 DEG C again.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of grinding wheel cold-hot pressure one-shot forming technique, which is characterized in that include the following steps；
Step 1: ingredient: including major ingredient according to weight percent: brown corundum abrasive 10-15%, rose grain 15-20%, carbonization
Silicon 28-40%, polyvinyl butyral resin 5-10%, abrasive material bonding agent 2-5%, vanadium iron powder 5-10%；
Step 2: mixing: above-mentioned material proportionally being poured into mixed organization in (2), using mixed organization (2) to material
Carry out preliminary crushing with mix；
Step 3: grinding: the material mixed being poured into milling mechanism (1), using grinding mechanism (1) to mixed material
Carry out grinding 5-8h；
Step 4: first cold pressing: installing matrix in a mold, the mixture after total mix is added to cold pressing through weighing, stocking process
Integrated compression moulding is carried out in the mold of molding equipment；
Step 5: secondary cold pressing: after first cold moudling, natural cooling 2-5h, then passes to cold air progress in a natural environment
It is quickly cooled down 3-4h；
Step 6: preheating: preheated using 3000 tons of hot presses, temperature be gradually warmed up from initial 0 DEG C height to 120 DEG C, with
The speed that temperature per minute increases 30 DEG C is increased to 120 DEG C, and whole process is completed in closed environment；
Step 7: first hot pressing: carrying out first time hot pressing using 3000 tons of hot presses；
Step 8: carrying out secondary hot pressing molding after 3000 tons of hot presses are warming up to 160 DEG C again.
2. a kind of grinding wheel cold-hot pressure one-shot forming technique according to claim 1, it is characterised in that: mixed described in step 2
Mechanism (2) includes cabinet (201), and the top dead center position of the cabinet (201) is welded with feed hopper (206), the cabinet
(201) it is welded on front side of rectangular box (212), is connected with the first cylinder along the longitudinal direction on the left of the inner cavity of the cabinet (201)
One end of axis (208), and the other end of the first cylindrical shaft (208) extends the inner cavity into rectangular box (212), the cabinet
(201) one end of the second cylindrical shaft (207) is connected on the right side of inner cavity along the longitudinal direction, and the second cylindrical shaft (207) is another
Output end of the end through cabinet (201) and rectangular box (212) and first motor (209) welds, and is located in the rectangular box (212)
Interference fit has the first tooth being meshed respectively on the first cylindrical shaft (208) of cavity segment and the outer wall of the second cylindrical shaft (207)
(212) and second gear (210) are taken turns, first cylindrical shaft (208) and the second cylindrical shaft at the cabinet (201) inner cavity position are located at
(207) interference fit has crushing shaft (202) on outer wall, and the right side bottom end screw of the cabinet (201) is connected with the second electricity
The output end of machine (203), second motor (203) is welded with stirring rod (205), and the left end of stirring rod (205) extends into
The discharge port position of the inner cavity of cabinet (201), the cabinet (201) is plugged with baffle (204).
3. a kind of grinding wheel cold-hot pressure one-shot forming technique according to claim 1, it is characterised in that: mill described in step 3
Mechanism (1) includes spill case (109), and the lower surface of the spill case (109) is reserved with strip groove (107), the spill case
(109) outer wall top is welded with outer container (101), and the inner cavity bottom end of the spill case (109) is plugged with arc-shaped seat (105), institute
It states and is welded with rack gear (102) at left and right sides of the top of spill case (109), the top engagement of the rack gear (102) is connected with H-shaped
Gear (110) is welded with round bar (114) in left-right direction between two H-shaped gears (110), the round bar (114) it is outer
Be connected on wall casing (112), be welded with one end of hydraulic cylinder on rear side of the casing (112), and the other end of hydraulic cylinder with
The inner wall of outer container (101) welds, and the top dead center position of the casing (112) is welded with sliding block (113), and sliding block (113)
Upper half branch is embedded in the reserved sliding slot in outer container (101) lower surface, is located at the round bar of the casing (112) lumen portion
(114) there is the first angular wheel (111) interference fit on outer wall, the company of engagement on the outer wall of first angular wheel (111)
It is connected to the second angular wheel (103), the bottom end of second angular wheel (103) is welded with column axis (108), and column axis
(108) bottom end is extended casing (112) and is connect with casing (112) axis, and the bottom end of the column axis (108), which is welded with, rolls block
(106), the outer wall bottom end of the spill case (109) is welded with storage bin (104).
4. a kind of grinding wheel cold-hot pressure one-shot forming technique according to claim 3, it is characterised in that: the sliding block (113)
Section it is in the shape of a " convex ".
5. a kind of grinding wheel cold-hot pressure one-shot forming technique according to claim 3, it is characterised in that: described to roll block
It (106) is semicircle, and the lower surface for rolling block (106) is in contact with arc-shaped seat (105).
6. a kind of grinding wheel cold-hot pressure one-shot forming technique according to claim 1, it is characterised in that: in step 3, mill
When can put into limit grinding layer material, core material respectively and place reinforcement steel loop, which can effectively improve grinding wheel
Mechanical strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811618441.2A CN109483422A (en) | 2018-12-28 | 2018-12-28 | A kind of grinding wheel cold-hot pressure one-shot forming technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811618441.2A CN109483422A (en) | 2018-12-28 | 2018-12-28 | A kind of grinding wheel cold-hot pressure one-shot forming technique |
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| Publication Number | Publication Date |
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| CN109483422A true CN109483422A (en) | 2019-03-19 |
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ID=65712803
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|---|---|---|---|
| CN201811618441.2A Pending CN109483422A (en) | 2018-12-28 | 2018-12-28 | A kind of grinding wheel cold-hot pressure one-shot forming technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110125330A (en) * | 2019-05-27 | 2019-08-16 | 徐州国隆电力配件铸造有限公司 | A kind of wearability steel ball casting molding sand grinding device |
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Application publication date: 20190319 |
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