CN115026263A - Speed reducer box is mould for casting - Google Patents
Speed reducer box is mould for casting Download PDFInfo
- Publication number
- CN115026263A CN115026263A CN202210645204.5A CN202210645204A CN115026263A CN 115026263 A CN115026263 A CN 115026263A CN 202210645204 A CN202210645204 A CN 202210645204A CN 115026263 A CN115026263 A CN 115026263A
- Authority
- CN
- China
- Prior art keywords
- box cover
- forming
- die
- casting
- pressing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005266 casting Methods 0.000 title claims abstract description 53
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 9
- 238000003825 pressing Methods 0.000 claims abstract description 61
- 238000012546 transfer Methods 0.000 claims description 43
- 238000007789 sealing Methods 0.000 claims description 35
- 238000000465 moulding Methods 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 20
- 238000003860 storage Methods 0.000 claims description 14
- 230000009467 reduction Effects 0.000 claims description 13
- 239000000155 melt Substances 0.000 claims description 11
- 238000001802 infusion Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 10
- 230000006872 improvement Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a casting die for a speed reducer box, which comprises: a pressing unit; the forming unit is arranged at the lower part of the pressing unit; the limiting unit is used for limiting the pressing position of the pressing unit and is arranged between the pressing unit and the forming unit; the pressing unit comprises a first pressing component for forming the lower box cover; the second pressing component is arranged on the side part of the first pressing component and used for forming the upper box cover; and a carrier assembly for coaxially arranging hole dies of the upper box cover and the lower box cover is transited between the first downward pressing assembly and the second downward pressing assembly. Through the mode that adopts the half axle setting of staggering when casting upper and lower case lid, guarantee that the upper and lower case lid of casting can be a complete round hole and upper and lower semicircle orifice dislocation can not appear after closing the lid, the effect of the installation work of subsequent bore hole work and gear shaft of being convenient for.
Description
Technical Field
The invention relates to the technical field of reduction gearbox casting, in particular to a mould for casting a reduction gearbox body.
Background
The casing of the reduction gearbox is generally divided into an upper box cover and a lower box cover, and when the casing of the reduction gearbox is manufactured, a low-pressure casting die is generally adopted for casting, and the low-pressure casting die is a die for molding industrial products through pressure casting, so that molten metal is filled into a die cavity under certain pressure and is solidified and molded under the condition of keeping the pressure to be processed into parts.
Chinese patent CN 105127400B discloses a reduction gearbox mould for locomotive driving device, including mould shell and mould core, the mould shell comprises preceding upper die, back upper die, preceding lower die and back lower side module, be equipped with the independent cooling mouth that is used for carrying out the cooling to the mould on preceding upper die, back upper die, preceding lower die and the back lower die respectively, the cooling mouth includes cold wind mouth and cold water mouth.
However, the technical scheme has the following defects:
1. according to the scheme, the upper box cover and the lower box cover of the reduction box are separately cast, so that when the upper box cover and the lower box cover are cast, the pressure intensity of molten metal of the upper box cover and the lower box cover cannot be kept consistent, and the internal stress of the cast upper box cover and the cast lower box cover has large difference;
2. still the scheme is because divide two moulds with last case lid and lower upper cover and cast, and great dislocation appears in the semicircle orifice opening that upper case lid and lower case lid are used for bearing the weight of the gear shaft easily appearing, brings very big difficulty for the finish machining of later stage.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a mould for casting a speed reducer box body, wherein the mould for casting an upper box cover and a lower box cover is integrally designed, so that the upper box cover and the lower box cover can be simultaneously cast at one time, the pressure of molten metal of the upper box cover and the lower box cover in the mould is ensured to be consistent during casting, the mechanical properties of the cast upper box cover and the cast lower box cover are highly consistent, the working efficiency is high, the sealing performance is good, the cast upper box cover and the cast lower box cover can be a complete round hole after being closed, the upper semi-circular hole and the lower semi-circular hole cannot be staggered by adopting a mode of staggering half shafts during casting the upper box cover and the lower box cover, and the subsequent boring work and the installation work of a gear shaft are facilitated.
In order to achieve the purpose, the invention provides the following technical scheme:
a mould for casting a speed reducer box body comprises:
a pressing unit;
the forming unit is arranged at the lower part of the pressing unit; and
the limiting unit is used for limiting the pressing position of the pressing unit and is arranged between the pressing unit and the forming unit;
the pressing unit comprises a first pressing component for forming the lower box cover; the second pressing component is arranged on the side part of the first pressing component and used for forming the upper box cover;
and a carrier assembly for coaxially arranging hole dies of the upper box cover and the lower box cover is transited between the first downward pressing assembly and the second downward pressing assembly.
As a refinement, the carrier assembly comprises:
a sealing block;
the first forming block is connected to the lower end of the sealing block;
the lower box cover hole die is connected to the side part of the first forming block and is attached to the lower part of the sealing block;
the bearing frame is connected to the outlet end of the lower box cover hole die through a switching block;
the side part of the switching block is connected with a first upper box cover hole die attached to the upper end of the bearing frame.
As an improvement, a second upper box cover hole die is connected to one end, opposite to the first upper box cover hole die, of the upper end of the bearing frame;
the lower box cover hole die, the first upper box cover hole die and the second upper box cover hole die are arranged along the same axis;
the upper end surface of the lower box cover hole die and the lower end surface of the first upper box cover hole die are positioned on the same horizontal plane;
and the lower box cover hole die, the first upper box cover hole die and the second upper box cover hole die are semi-circles.
As an improvement, a first transfer groove is formed in the first molding block;
a liquid guide groove for communicating the lower box cover hole die with the first upper box cover hole die is formed in the adapter block;
the second hold-down assembly comprises:
the first forming cover is connected to the upper end of the bearing frame;
the first forming cover is located one side opposite to the pressing unit and is provided with a first sealing groove.
As an improvement, the molding unit includes:
a frame;
the lower box cover forming assembly is arranged at the left position of the upper end of the rack;
the upper box cover forming assembly is arranged obliquely above the lower box cover forming assembly;
the upper case cover molding assembly includes:
a second push rod;
a third molding cover connected to a side of the second push rod;
the side part of the third forming cover is connected with a first sealing strip;
and a lower rack is connected to the side part of the second push rod below.
As an improvement, the lower box cover forming assembly comprises:
a first push rod;
the upper rack is connected to the side part of the first push rod through a connecting rod;
a second molding cover connected to one end of the first push rod;
and a second sealing groove is formed in one side, located at the limiting unit, of the second forming cover.
As an improvement, the spacing unit includes:
a support;
a lifting column is inserted into the bracket in a sliding manner close to the right;
a limiting frame with a circular upper part is connected to the upper part of the bracket and positioned outside the lifting column;
a limiting cylinder is sleeved outside the lifting column and outside the limiting frame;
a pre-tightening spring is connected to the outer side of the lifting column and below the limiting cylinder;
the top of the lifting column is connected with a second forming block.
As an improvement, a first sinking groove is arranged in the middle of the inner part of the bracket;
a return spring is inserted into the first sinking groove;
a lifting block is inserted into the first sinking groove at the upper end of the return spring;
a second sinking groove is formed in the upper end of the support and is positioned at the opening of the first sinking groove;
and a second sealing strip is arranged on one side of the bracket, which is positioned on the first downward pressing component.
As an improvement, the forming unit further comprises a transfusion assembly;
the infusion set includes:
pre-storing the box;
a second cylinder is arranged on one side of the pre-storage box;
a piston used for pushing the melt liquid into the lower box cover forming assembly is inserted into one end of the second cylinder and positioned in the pre-storage box in a sliding mode;
and one side of the pre-storage box, which is opposite to the second cylinder, is connected with a transfer pipe communicated with the bottom of the second forming cover.
As a refinement, the opening of the transfer pipe is smaller than the opening of the first transfer groove;
the openings of the first transfer groove, the liquid guide groove, the lower box cover hole die, the first upper box cover hole die and the second transfer groove are equal in size.
The invention has the beneficial effects that:
(1) according to the invention, when the switching block moves downwards along the second sinking groove, the side surface of the second sinking groove is contacted with the two sides of the switching block, and the lifting block is always in close contact with the bottom of the switching block under the action of the elastic force of the return spring, so that the effect of good sealing performance is achieved.
(2) According to the invention, the upper box cover and the lower box cover can be simultaneously cast at one time by integrally designing the die for casting the upper box cover and the lower box cover, so that the pressure intensity of molten metal of the upper box cover and the lower box cover in the die is ensured to be consistent during casting, the mechanical properties of the cast upper box cover and the cast lower box cover are highly consistent, and the working efficiency is high.
(3) According to the invention, the half shafts are arranged in a staggered manner when the upper box cover and the lower box cover are cast, so that the cast upper box cover and the cast lower box cover can be a complete round hole after being closed, and the upper semicircular hole and the lower semicircular hole are not staggered, thereby facilitating the subsequent boring work and the installation work of the gear shaft.
(4) According to the invention, the lower box cover forming assembly and the upper box cover forming assembly are separated from the first downward pressing assembly and the second downward pressing assembly respectively by starting the driving mechanism, and then the first air cylinder is started to enable the first downward pressing assembly and the second downward pressing assembly to move upwards and separate from the lower box cover and the upper box cover which are completely cast respectively, so that the upper box cover and the lower box cover which are completely cast are both arranged on the upper part of the support, and the effect of automatic mold stripping is achieved.
(5) According to the invention, the sizes of the openings of the first transfer groove, the liquid guide groove, the lower box cover hole die, the first upper box cover hole die and the second transfer groove are set to be equal, and the opening of the transfer pipe is set to be smaller than the opening of the first transfer groove, so that the transfer speed of the molten liquid in the pre-storage box transferred from the transfer pipe into the lower box cover casting cavity is higher than the speed of the lower box cover casting cavity entering the upper box cover casting cavity, and the molten liquid can rapidly enter the lower box cover casting cavity after filling the upper box cover casting cavity, and the solution is prevented from being cooled and solidified in the lower box cover casting cavity in the transfer process.
In conclusion, the invention has the advantages of good sealing, high working efficiency, consistent mechanical properties of the cast upper box cover and the cast lower box cover, no dislocation of semicircular holes of the cast upper box cover and the cast lower box cover and the like.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a diagram of the relationship between the first and second pressing members;
FIG. 3 is a schematic view of the construction of the carrier assembly of the present invention;
FIG. 4 is a schematic view of the overall internal structure of the present invention;
FIG. 5 is an enlarged view of the invention at A in FIG. 4;
FIG. 6 is a diagram showing the fit relationship between the lower case cover hole mold and the upper case cover hole mold relative to the joint block according to the present invention;
FIG. 7 is a schematic structural view of a molding unit of the present invention;
FIG. 8 is a diagram showing the relationship between the position limiting unit and the pressing unit;
FIG. 9 is a diagram of the working state of the infusion set of the present invention;
FIG. 10 is a drawing showing the relationship between the lifting block and the transfer block in the first sink tank;
FIG. 11 is a diagram showing the relationship between the second sink groove and the adapter block;
FIG. 12 is a drawing of the relationship between the upper and lower lids after completion of the present invention.
In the figure, 1, a pressing unit; 2. a molding unit; 3. a limiting unit; 11. a first hold-down assembly; 12. a second hold-down assembly; 110. a first cylinder; 111. a fork member; 112. a carrier assembly; 1121. a sealing block; 1122. a first molding block; 11221. a first transfer tank; 1123. a lower box cover hole die; 1124. a transfer block; 11241. a liquid guide groove; 1125. a first upper box cover hole die; 1126. a carrying frame; 11261. an ejection aperture; 1127. a second upper box cover hole die; 121. a first mold cover; 1211. a first seal groove; 122. a discharge pipe; 123. a collection frame; 200. a frame; 21. a lower box cover forming assembly; 22. an upper box cover forming assembly; 23. a fluid delivery assembly; 211. a first guide frame; 212. a first push rod; 213. a connecting rod; 214. an upper rack; 2141. a second guide frame; 215. a second molded cover; 2151. a second seal groove; 216. a drive mechanism; 221. a second push rod; 222. a third forming cover; 2221. a first seal strip; 223. a guide support; 224. a lower rack; 2241. a third guide frame; 231. pre-storing the box; 232. a second cylinder; 2321. a piston; 233. a transfer tube; 301. a support; 3011. a first sink tank; 3012. a return spring; 3013. a lifting block; 3014. a second sink tank; 3015. a second seal strip; 302. a lifting column; 303. a limiting frame; 304. pre-tightening the spring; 305. a limiting cylinder; 306. a second molding block; 3061. a second transfer tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example one
As shown in fig. 1 to 4, a mold for casting a reduction box comprises:
a press-down unit 1;
the forming unit 2 is arranged at the lower part of the pressing unit 1; and
the limiting unit 3 is used for limiting the pressing position of the pressing unit 1, and the limiting unit 3 is arranged between the pressing unit 1 and the forming unit 2;
the lower pressing unit 1 comprises a first lower pressing component 11 for forming a lower box cover; and a second lower pressing component 12 which is arranged at the side part of the first lower pressing component 11 and is used for forming an upper box cover;
the first pressing component 11 and the second pressing component 12 are transited by a carrier component 112 for coaxially arranging the hole dies of the upper box cover and the lower box cover.
As a refinement, as shown in fig. 2-3, the carrier assembly 112 includes:
a sealing block 1121;
a first forming block 1122, wherein the first forming block 1122 is connected to the lower end of the sealing block 1121;
a lower cover hole mold 1123 connected to a side portion of the first molding block 1122 and attached to a lower portion of the sealing block 1121;
a carrier frame 1126, said carrier frame 1126 being attached at an exit end of said lower housing aperture die 1123 by an adaptor block 1124;
a first upper cover hole mold 1125 attached to the upper end of the carrier frame 1126 is connected to the side of the adapting block 1124.
Further, a second upper cover hole mold 1127 is connected to the upper end of the carrying frame 1126 and the end opposite to the first upper cover hole mold 1125;
an ejection hole 11261 is formed in the bearing frame 1126, the opening of the ejection hole 11261 is equal to the periphery of the upper part of the second molding block 306 in size, and a baffle plate for limiting the bearing frame 1126 to be separated from the second molding block 306 is arranged at the bottom of the second molding block 306.
The lower box cover hole die 1123, the first upper box cover hole die 1125 and the second upper box cover hole die 1127 are coaxially arranged;
the upper end surface of the lower box cover hole die 1123 and the lower end surface of the first upper box cover hole die 1125 are located on the same horizontal plane;
the lower box cover hole die 1123, the first upper box cover hole die 1125 and the second upper box cover hole die 1127 are semi-circles.
Further, as shown in fig. 4 to 6, a first transfer groove 11221 is formed in the first forming block 1122;
a liquid guide groove 11241 for communicating the lower box cover hole die 1123 with the first upper box cover hole die 1125 is arranged in the switching block 1124;
the second hold-down assembly 12 includes:
the first molding cover 121, the first molding cover 121 is connected to the upper end of the bearing frame 1126;
a discharge pipe 122 is connected to the upper end of the first molding cover 121, and a collection frame 123 is connected to the side of the first molding cover 121 and below the discharge pipe 122;
the first molding cover 121 is provided with a first sealing groove 1211 at a side opposite to the pressing unit 1.
It should be added that the upper portion of the sealing block 1121 is connected with a shifting fork 111, the side portion of the shifting fork 111 is connected with the first forming cover 121, the upper end of the shifting fork 111 is connected with a first air cylinder 110, and the first air cylinder 110 is connected to the top of the frame 200.
As a modification, as shown in fig. 7, the molding unit 2 includes:
a frame 200;
the lower box cover forming assembly 21 is arranged, and the lower box cover forming assembly 21 is arranged at the left position of the upper end of the rack 200;
the upper box cover forming component 22 is arranged on the lower box cover forming component 21 in a tilted upper mode;
the upper case cover molding assembly 22 includes:
a second push rod 221;
a third forming cover 222, wherein the third forming cover 222 is connected to the side of the second push rod 221;
preferably, a guide support 223 is slidably connected to the lower end of the second push rod 221, and the bottom of the guide support 223 is connected to the frame 200;
a first sealing strip 2221 is connected to the side of the third forming cover 222;
a lower rack 224 is connected to the lower side of the second push rod 221;
preferably, a third guide frame 2241 connected to the bottom of the rack 200 is sleeved outside the lower rack 224.
Further, the lower box cover forming assembly 21 includes:
a first push rod 212;
an upper rack 214, wherein the upper rack 214 is connected to the side of the first push rod 212 through a connecting rod 213;
preferably, a first guide frame 211 connected to the upper end of the frame 200 is sleeved outside the connecting rod 213;
a second guide frame 2141 connected with the rack 200 is sleeved on the outer side of the upper rack 214;
a second molding cover 215, the second molding cover 215 being connected to one end of the first push rod 212;
a driving mechanism 216 with a gear is engaged between the upper rack 214 and the lower rack 224, and the driving mechanism 216 preferably adopts a motor;
a second sealing groove 2151 is formed in one side of the second molding cover 215 located in the limiting unit 3.
As an improvement, as shown in fig. 8, the limiting unit 3 includes:
a bracket 301;
a lifting column 302 is inserted into the bracket 301 in a sliding manner close to the right;
a limiting frame 303 with a circular upper part is connected to the upper part of the bracket 301 and positioned outside the lifting column 302;
a limiting cylinder 305 is sleeved outside the lifting column 302 and outside the limiting frame 303;
a pre-tightening spring 304 is connected to the outer side of the lifting column 302 and below the limiting cylinder 305;
the top of the lifting column 302 is connected with a second forming block 306;
the second molding block 306 is internally provided with a second transfer groove 3061 communicating with the first upper cover hole mold 1125.
Further, as shown in fig. 10 to 11, a first sink slot 3011 is provided in the middle inside the bracket 301;
a return spring 3012 is inserted into the first sinking groove 3011;
a lifting block 3013 is inserted into the first sinking groove 3011 at the upper end of the reset spring 3012;
a second sinking groove 3014 is arranged at the upper end of the bracket 301 and at the opening of the first sinking groove 3011;
the bracket 301 is provided with a second sealing strip 3015 on one side of the first pressing component 11.
It should be noted that, initially, the sealing block 1121 and the first forming cover 121 are both away from the upper portion of the bracket 301, the third forming cover 222 is away from the right side of the second forming block 306, and the second forming cover 215 is away from the left side of the bracket 301, when in operation, as shown in fig. 2-5, the first air cylinder 110 is started first, the first air cylinder 110 drives the sealing block 1121 and the first forming cover 121 to synchronously move downward through the fork 111, the sealing block 1121 drives the transfer block 1124 to move downward along the second sinking groove 3014 through the lower cover hole mold 1123, the transfer block 1124 drives the bearing frame 1126 to move to the baffle at the bottom of the second forming block 306 through the first upper cover hole mold 1125 to contact, subsequently, the bearing frame 1126 drives the lifting column 302 to move downward along the bracket 301 through the second forming block 306, the lifting column 302 compresses the pretension spring 304 downward through the restraining barrel 305 until the bottom of the second forming block 306 contacts with the upper portion of the restraining bracket 303, at this time, the first cylinder 110 stops pushing down;
the driving mechanism 216 is started, the driving mechanism 216 drives the connecting rod 213 to move through the upper rack 214, the connecting rod 213 drives the second forming cover 215 to move towards the direction of the bracket 301 through the first push rod 212, as shown in fig. 4, so that the second sealing groove 2151 is sleeved outside the second sealing strip 3015, and the second forming cover 215 is in contact with the periphery of the sealing block 1121, at this time, a cavity for casting the lower box cover is formed between the first forming block 1122 and the second forming cover 215 as well as between the bracket 301;
in the process that the driving mechanism 216 drives the upper rack 214 to move, the driving mechanism 216 also drives the second push rod 221 to move along the guide support 223 through the lower rack 224, and the second push rod 221 drives the third forming cover 222 to move along the second forming block 306, so that the first sealing strip 2221 is inserted into the first forming block 1122, and at this time, a cavity for casting the upper box cover is formed between the second forming block 306 and the first forming cover 121 as well as between the second forming block 306 and the third forming cover 222;
at this point, the mold merging work is completed, and the present invention stops the movement by driving the first cylinder 110 first, as shown in fig. 4 to 5, until the bottom of the second molding block 306 is pushed to the upper portion of the spacing frame 303, and at this time, the second seal groove 3015 and the second seal groove 2151 are located at the same level, the first seal groove 1211 and the first seal groove 2221 are located at the same level, and then by activating the driving mechanism 216, such that the second seal strip 3015 and the second seal groove 2151 and the first seal groove 1211 and the first seal groove 2221 are fully engaged, as shown in figures 5 and 10-11, when the switching block 1124 moves downwards along the second sinking groove 3014, on one hand, the side surface of the second sinking groove 3014 contacts with both sides of the switching block 1124, and on the other hand, the lifting block 3013 is always in close contact with the bottom of the switching block 1124 under the action of the elastic force of the return spring 3012, so that the effect of good sealing performance is achieved;
when the melt is poured, the melt is poured into the inside of the pre-storage tank 231, as shown in fig. 5-6 and 8-9, the second cylinder 232 is started, the second cylinder 232 moves along the pre-storage tank 231 through the piston 2321, so that the melt in the pre-storage tank 231 is poured into the cavity for casting the lower box cover along the transfer pipe 233, the melt rapidly rises from the bottom of the cavity for casting the lower box cover to contact with the bottom of the sealing block 1121, then the melt enters the cavity for manufacturing the upper box cover along the first transfer groove 11221, the lower box cover hole mold 1123, the liquid guide groove 11241, the first upper box cover hole mold 1125 and the second transfer groove 3061 in sequence, the melt is gradually filled in the cavity for manufacturing the upper box cover, and the redundant melt falls into the collection frame 123 along the discharge pipe 122 for recycling, thereby achieving the integrated design by the molds for casting the upper box cover and the lower box cover, the upper box cover and the lower box cover can be simultaneously cast at one time, so that the pressure intensity of molten metal of the upper box cover and the lower box cover in a die is consistent during casting, the mechanical properties of the cast upper box cover and the cast lower box cover are highly consistent, and the working efficiency is high;
according to the invention, the upper end surface of the lower box cover hole die 1123 and the lower end surface of the first upper box cover hole die 1125 are arranged on the same horizontal plane and are transited through the transfer block 1124, and the first lower box cover hole die 1123, the first upper box cover hole die 1125 and the second upper box cover hole die 1127 are semi-circles as shown in fig. 3-6, fig. 8 and fig. 11-12, so that the situation that an incomplete round hole at a position b in fig. 12 appears on the cast upper box cover and the cast lower box cover can not occur, meanwhile, the lower box cover hole die 1123, the first upper box cover hole die 1125 and the second upper box cover hole die 1127 are arranged along the same axis, so that the situation that a misplaced hole at a position a in fig. 12 does not occur on the cast upper box cover and the cast lower box cover can not occur, wherein a half-shaft hole at a position c in fig. 12 is a hole to be cast by the invention, so that the mode that round holes are arranged in the casting process of up and down and up and down box covers can be staggered and a complete box cover and a half-up and a half-down hole can not occur and a cover hole can be misplaced hole after being cast can occur And the subsequent boring work and the installation work of the gear shaft are facilitated.
When the mold stripping operation is performed after the casting is completed, as shown in fig. 4 and fig. 7-8, the driving mechanism 216 is firstly started to separate the lower cover molding assembly 21 and the upper cover molding assembly 22 from the first lower pressing assembly 11 and the second lower pressing assembly 12, and then the first cylinder 110 is started to move the first lower pressing assembly 11 and the second lower pressing assembly 12 upward and separate from the lower cover and the upper cover after the casting is completed, so that the upper cover and the lower cover after the casting are both placed on the upper portion of the bracket 301, thereby achieving the effect of automatic mold stripping.
In the present invention, it is preferable that a heater is installed inside the adapting block 1121, and after each casting, the melt formed and solidified in the liquid guide groove 11241, the lower cover hole mold 1123, and the first upper cover hole mold 1125 can be changed into a melt again by heating at a high temperature by the heater and flow out, thereby preventing the inside of the adapting block 1121 from being clogged at the time of the next transfusion.
Example two
As shown in fig. 9, in which the same or corresponding components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience. The second embodiment is different from the first embodiment in that:
the forming unit 2 further comprises a feeding set 23;
the infusion set 23 comprises:
a pre-storage bin 231;
a second air cylinder 232 is arranged on one side of the pre-storage box 231;
a piston 2321 for pushing the melt into the lower box cover molding assembly 21 is inserted and inserted in a sliding manner at one end of the second cylinder 232 and inside the pre-storage box 231;
a transfer pipe 233 communicating with the bottom of the second molding cover 215 is connected to a side of the pre-storage tank 231 opposite to the second cylinder 232.
Further, the opening of the transfer tube 233 is smaller than the opening of the first transfer groove 11221;
the openings of the first transfer groove 11221, the liquid guide groove 11241, the lower cover hole mold 1123, the first upper cover hole mold 1125, and the second transfer groove 3061 are equal in size.
It should be noted that, because the molten liquid has a certain concentration, and the molten liquid needs to be transferred quickly in order to prevent solidification in the casting cavity, the openings of the first transfer groove 11221, the liquid guide groove 11241, the lower cover hole mold 1123, the first upper cover hole mold 1125 and the second transfer groove 3061 are set to be equal, and the opening of the transfer pipe 233 is set to be smaller than the opening of the first transfer groove 11221, so that the transfer speed of the molten liquid in the prestoring tank 231 from the transfer pipe 233 to the lower cover casting cavity is greater than the speed of the lower cover casting cavity to the upper cover casting cavity, and the molten liquid can rapidly enter the lower cover casting cavity after filling the upper cover casting cavity to prevent the molten liquid from being cooled and solidified in the lower cover casting cavity.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a mould is used in casting of speed reducer box which characterized in that includes:
a pressing unit;
the forming unit is arranged at the lower part of the pressing unit; and
the limiting unit is used for limiting the pressing position of the pressing unit and is arranged between the pressing unit and the forming unit;
the pressing unit comprises a first pressing component for forming the lower box cover; the second lower pressing component is arranged on the side part of the first lower pressing component and used for forming the upper box cover;
and a carrier assembly for coaxially arranging hole dies of the upper box cover and the lower box cover is transited between the first downward pressing assembly and the second downward pressing assembly.
2. The die for casting the reduction box body as claimed in claim 1,
the carrier assembly includes:
a sealing block;
the first forming block is connected to the lower end of the sealing block;
the lower box cover hole die is connected to the side part of the first forming block and is attached to the lower part of the sealing block;
the bearing frame is connected to the outlet end of the lower box cover hole die through a switching block;
the side part of the switching block is connected with a first upper box cover hole die attached to the upper end of the bearing frame.
3. The die for casting the speed reducer box body according to claim 2,
a second upper box cover hole die is connected to the end, opposite to the first upper box cover hole die, of the upper end of the bearing frame;
the lower box cover hole die, the first upper box cover hole die and the second upper box cover hole die are arranged along the same axis;
the upper end surface of the lower box cover hole die and the lower end surface of the first upper box cover hole die are positioned on the same horizontal plane;
and the lower box cover hole die, the first upper box cover hole die and the second upper box cover hole die are semi-circles.
4. The die for casting the reduction box body as claimed in claim 3, wherein the die comprises a die body,
a first transfer groove is formed in the first forming block;
a liquid guide groove for communicating the lower box cover hole die with the first upper box cover hole die is formed in the adapter block;
the second hold-down assembly comprises:
the first forming cover is connected to the upper end of the bearing frame;
the first forming cover is located one side, opposite to the pressing unit, of the pressing unit is provided with a first sealing groove.
5. The die for casting the reduction box body as claimed in claim 1,
the molding unit includes:
a frame;
the lower box cover forming assembly is arranged at the left position of the upper end of the rack;
the upper box cover forming assembly is arranged obliquely above the lower box cover forming assembly;
the upper case cover molding assembly includes:
a second push rod;
a third forming cover connected to a side of the second push rod;
the side part of the third forming cover is connected with a first sealing strip;
and a lower rack is connected to the side part of the second push rod below.
6. The die for casting the speed reducer box body as claimed in claim 5,
the lower box cover forming assembly comprises:
a first push rod;
the upper rack is connected to the side part of the first push rod through a connecting rod;
a second molding cover connected to one end of the first push rod;
and a second sealing groove is formed in one side, located at the limiting unit, of the second forming cover.
7. The die for casting the reduction box body as claimed in claim 1,
the spacing unit includes:
a support;
a lifting column is inserted into the bracket in a sliding manner close to the right;
a limiting frame with a circular upper part is connected to the upper part of the bracket and positioned outside the lifting column;
a limiting cylinder is sleeved outside the lifting column and outside the limiting frame;
a pre-tightening spring is connected to the outer side of the lifting column and below the limiting cylinder;
and the top of the lifting column is connected with a second forming block.
8. The die for casting the reduction box body as claimed in claim 7,
a first sinking groove is formed in the middle inside the support;
a return spring is inserted into the first sinking groove;
a lifting block is inserted into the first sinking groove at the upper end of the return spring;
a second sinking groove is formed in the upper end of the support and is positioned at the opening of the first sinking groove;
and a second sealing strip is arranged on one side of the bracket, which is positioned on the first downward pressing assembly.
9. The die for casting the speed reducer box body according to claim 4,
the forming unit further comprises a transfusion assembly;
the infusion set includes:
pre-storing the box;
a second cylinder is arranged on one side of the pre-storage box;
a piston used for pushing the melt liquid into the lower box cover forming assembly is inserted into one end of the second cylinder and positioned in the pre-storage box in a sliding mode;
and one side of the pre-storage box, which is opposite to the second cylinder, is connected with a transfer pipe communicated with the bottom of the second forming cover.
10. The die for casting the reduction box body as claimed in claim 9, wherein the die comprises a die body,
the opening of the transfer pipe is smaller than the opening of the first transfer groove;
the openings of the first transfer groove, the liquid guide groove, the lower box cover hole die, the first upper box cover hole die and the second transfer groove are equal in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210645204.5A CN115026263B (en) | 2022-06-09 | 2022-06-09 | Die for casting speed reducer box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210645204.5A CN115026263B (en) | 2022-06-09 | 2022-06-09 | Die for casting speed reducer box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115026263A true CN115026263A (en) | 2022-09-09 |
| CN115026263B CN115026263B (en) | 2024-04-12 |
Family
ID=83123900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210645204.5A Active CN115026263B (en) | 2022-06-09 | 2022-06-09 | Die for casting speed reducer box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115026263B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08312456A (en) * | 1995-05-11 | 1996-11-26 | Toyota Motor Corp | Cylinder block lower case |
| DE19720057A1 (en) * | 1997-05-14 | 1998-11-19 | Wagner Heinrich Sinto Masch | Method and device for increasing pouring in sand molds |
| JP2003088940A (en) * | 2001-09-14 | 2003-03-25 | Honda Motor Co Ltd | Apparatus for casting cylinder head |
| CN105033222A (en) * | 2015-08-12 | 2015-11-11 | 重庆市合川区均恒金属加工厂 | Die-casting mould for gearbox shell |
| CN106180553A (en) * | 2016-08-11 | 2016-12-07 | 李向阳 | A kind of blank manufacture method of gear box of tractor |
| CN106734943A (en) * | 2017-03-17 | 2017-05-31 | 新绛县祥和机械有限公司 | The split core and its pouring procedure of housing core retainer plate core pouring technology |
| CN107745081A (en) * | 2017-11-22 | 2018-03-02 | 扬州峰明光电新材料有限公司 | The differential pressure running gate system and differential pressure pouring procedure of U-shaped magnesium alloy member |
| CN207533918U (en) * | 2017-12-14 | 2018-06-26 | 杭州祥盛机械铸造有限公司 | A kind of speed reducer rear cover mould |
| CN208495759U (en) * | 2018-07-10 | 2019-02-15 | 天津源远精密机械有限公司 | A kind of dampener sleeve casting mould |
| CN209370416U (en) * | 2018-11-30 | 2019-09-10 | 一汽解放汽车有限公司 | A kind of main reducing gear of drive axle housing assy |
| CN111570783A (en) * | 2020-04-30 | 2020-08-25 | 浙江惠通全成重工机械科技有限公司 | Production equipment and process for casting speed reduction motor box body |
| WO2021002418A1 (en) * | 2019-07-04 | 2021-01-07 | 武蔵精密工業株式会社 | Differential device |
| CN112692262A (en) * | 2020-12-22 | 2021-04-23 | 孟辉 | Speed reducer shell casting forming process |
-
2022
- 2022-06-09 CN CN202210645204.5A patent/CN115026263B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08312456A (en) * | 1995-05-11 | 1996-11-26 | Toyota Motor Corp | Cylinder block lower case |
| DE19720057A1 (en) * | 1997-05-14 | 1998-11-19 | Wagner Heinrich Sinto Masch | Method and device for increasing pouring in sand molds |
| JP2003088940A (en) * | 2001-09-14 | 2003-03-25 | Honda Motor Co Ltd | Apparatus for casting cylinder head |
| CN105033222A (en) * | 2015-08-12 | 2015-11-11 | 重庆市合川区均恒金属加工厂 | Die-casting mould for gearbox shell |
| CN106180553A (en) * | 2016-08-11 | 2016-12-07 | 李向阳 | A kind of blank manufacture method of gear box of tractor |
| CN106734943A (en) * | 2017-03-17 | 2017-05-31 | 新绛县祥和机械有限公司 | The split core and its pouring procedure of housing core retainer plate core pouring technology |
| CN107745081A (en) * | 2017-11-22 | 2018-03-02 | 扬州峰明光电新材料有限公司 | The differential pressure running gate system and differential pressure pouring procedure of U-shaped magnesium alloy member |
| CN207533918U (en) * | 2017-12-14 | 2018-06-26 | 杭州祥盛机械铸造有限公司 | A kind of speed reducer rear cover mould |
| CN208495759U (en) * | 2018-07-10 | 2019-02-15 | 天津源远精密机械有限公司 | A kind of dampener sleeve casting mould |
| CN209370416U (en) * | 2018-11-30 | 2019-09-10 | 一汽解放汽车有限公司 | A kind of main reducing gear of drive axle housing assy |
| WO2021002418A1 (en) * | 2019-07-04 | 2021-01-07 | 武蔵精密工業株式会社 | Differential device |
| CN111570783A (en) * | 2020-04-30 | 2020-08-25 | 浙江惠通全成重工机械科技有限公司 | Production equipment and process for casting speed reduction motor box body |
| CN112692262A (en) * | 2020-12-22 | 2021-04-23 | 孟辉 | Speed reducer shell casting forming process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115026263B (en) | 2024-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209775389U (en) | Die-casting device is used in production of entity plastic product | |
| CN217941815U (en) | Blanking mechanism of automobile die-casting die | |
| CN112705692A (en) | Casting mould | |
| CN218168697U (en) | Vertical casting equipment for metal blank | |
| CN211564459U (en) | Die-casting die convenient for demolding | |
| CN217570808U (en) | Die casting die structure with central feeding sprue | |
| CN115026263A (en) | Speed reducer box is mould for casting | |
| CN112208078B (en) | Easily radiating injection mold | |
| CN116352051B (en) | Die-casting die and die-casting process | |
| CN210996447U (en) | Circulating cooling equipment for casting automobile parts | |
| CN113751690A (en) | Pressure boost casting mould of casing casting usefulness | |
| CN212045725U (en) | Long-life injection mold | |
| CN209773447U (en) | Injection mold processing that security is good is with pouring device | |
| CN208450354U (en) | A kind of motor shell processing mold | |
| CN220372170U (en) | Metal casting waste output mechanism | |
| CN215965978U (en) | Push-out mold for processing key products | |
| CN218139584U (en) | Injection mold convenient to drawing of patterns | |
| CN218519140U (en) | Customized plastic mold cooling device | |
| CN219903073U (en) | Automobile bushing injection molding machine capable of automatically demolding | |
| CN212792940U (en) | Improve die-casting device of boss structure foundry goods internal quality | |
| CN212472161U (en) | Dumbbell plastic-coated mold | |
| CN218517690U (en) | Decorative character cast-pressing processing device | |
| CN217196752U (en) | Quick demoulding device is used in injection mold production | |
| CN217315817U (en) | Thermos bottle metal shell stamping die convenient for demolding | |
| CN220636260U (en) | Multi-pouring-gate casting and forging integrated forming machine for bottom |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |