Die-casting forming die for fine holes of high-precision aluminum alloy part

Abstract

The invention relates to the technical field of casting dies, in particular to a die-casting forming die for high-precision aluminum alloy part pores. Comprising a mold support, and the mold support is provided with an upper mold module and a lower mold module; the device is further provided with a fine hole forming mechanism, a punching mechanism, a supporting and jacking mechanism and a positioning mechanism. The upper mold module and the lower mold module can vertically move in a guiding manner under the guiding of the longitudinal driving groove, so that stable mold opening and mold closing are realized; sliding fit between a guide rod and a guide hole is not needed, so that the number of holes formed in the mold is reduced, and the manufacturing cost of the mold is reduced; after demolding, the punching mechanism works, drilling equipment does not need to be independently arranged, the occupied field of a plant is reduced, other process equipment can be arranged, and the machining cost of the casting part is greatly reduced; in the punching process, after the punching telescopic base stretches out, the lifting positioning rod rises, the top of the lifting positioning rod abuts against the casting part through the opening module, and therefore the casting part is prevented from falling off, the casting part is further positioned, and the drilling stability and precision are improved.

Description

Technical Field

[0001] The invention relates to the technical field of casting molds, and in particular to a die-casting mold for fine holes of high-precision aluminum alloy parts. Background Art

[0002] Die casting mold is an advanced manufacturing technology widely used in the fields of automobile, electronics, electrical appliances, industry, etc. It is a mold used to manufacture metal parts. It uses high pressure to quickly fill liquid or semi-liquid metal into the mold cavity, and cools and solidifies under pressure to form the desired shape and size. High-pressure die casting molds usually consist of two parts: a fixed mold and a movable mold. The fixed mold is connected to the injection part of the die casting machine, and the movable mold is connected to the middle plate of the die casting machine. The structure and components of high-pressure die casting molds vary according to different products and processes, but generally include fixed mold inserts, movable mold inserts, core pulling mechanisms, gate systems, cooling systems, etc. The material and heat treatment requirements of high-pressure die casting molds also vary according to different metal alloys and usage conditions, but generally require high strength, high hardness, high wear resistance, high heat resistance, etc.

[0003] After the die-casting mold is used to die-cast the product, the next step is usually required, such as punching and grinding some areas. Therefore, the product needs to be removed from the casting mold, and then placed in the corresponding punching equipment for positioning before the punching process is carried out. Since the product needs to be placed in the equipment for transition and secondary positioning, a large amount of equipment needs to be used and a lot of time is spent on operation and positioning, which is extremely inefficient. Summary of the invention

[0004] The purpose of the present invention is to provide a high-precision die-casting mold for fine holes of aluminum alloy parts in view of the deficiencies in the prior art.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A die-casting mold for fine holes of a high-precision aluminum alloy part, comprising a mold bracket, the mold bracket is formed with a longitudinal drive groove arranged longitudinally and a first transverse drive groove and a second transverse drive groove arranged transversely, the first transverse drive groove and the second transverse drive groove are transversely coaxially aligned, and the first transverse drive groove, the second transverse drive groove and the longitudinal drive groove are vertically connected to each other to form a cross groove structure;

[0007] The longitudinal driving groove is provided with an upper mold module and a lower mold module, the upper mold module includes an upper mold module plate and an upper mold core installed at the bottom of the upper mold module plate; the lower mold module includes a lower mold module plate and a lower mold core installed at the top of the lower mold module plate, the upper mold core and the lower mold core form a mold cavity, a side driving plate installed in the first transverse driving groove is provided between the upper mold module and the lower mold module, the side driving plate is used for guiding the lower mold to cooperate with the upper mold module; the molding cavity is arranged with a fine hole molding mechanism;

[0008] The fine hole forming mechanism comprises a forming guide seat slidably mounted on the lower mold core and a long bar that can approach or move away from the forming guide seat, the forming guide seat is formed with a forming guide hole for the long bar to be inserted; the first transverse driving groove is slidably mounted with a first transverse driving seat, the first transverse driving seat is mounted with a side mounting seat, the outer end of the long bar is mounted on the side mounting seat, the side driving plate is formed with a first through hole for the long bar to move through, and the lower mold core is formed with a second through hole for the long bar to move through;

[0009] The second transverse driving groove is provided with a punching mechanism, the punching mechanism comprises a punching driving seat slidably mounted in the second transverse driving groove, the punching driving seat is provided with a punching telescopic seat capable of transverse extension and retraction, the punching telescopic seat is provided with a punching lifting seat capable of longitudinal movement, and a punching module is provided on the top of the punching lifting seat; the punching module comprises a punching driving sleeve embedded in the punching lifting seat, a rotating driving sleeve is provided on the top of the punching driving sleeve, a pair of drilling heads arranged at intervals are provided on the rotating driving sleeve, the drilling head comprises a drill seat mounted on the top of the rotating driving sleeve and a drill rod mounted on the top of the drill seat, a driving gear capable of rotation is provided in the rotating driving sleeve, a pair of driven gears meshing with the driving gear for transmission, the two driven gears are radially arranged on the left and right sides of the driving gear respectively, one of the driven gears rotationally drives one of the drilling heads to rotate, and the other driven gear rotationally drives the other drilling head to rotate;

[0010] The perforated telescopic seat is also provided with a supporting jacking mechanism for supporting and positioning the product after casting. The supporting jacking mechanism includes a lifting and positioning rod, and a support module capable of resisting the casting is installed on the top of the lifting and positioning rod.

[0011] Beneficial effects of the present invention:

[0012] 1. The upper mold assembly and the lower mold assembly can be guided to move vertically under the guidance of the longitudinal driving groove to achieve stable mold opening and mold closing; after mold closing, the upper mold core and the lower mold core form a mold cavity, which can be used to form high-precision aluminum alloy castings; there is no need to use the sliding fit of the guide rod and the guide hole, which reduces the number of mold openings and reduces the mold production cost;

[0013] 2. When closing the mold, the first transverse driving seat equipped with the side mounting seat moves inward along the first transverse driving groove, and the long bar passes through the first through hole and the second through hole in sequence, and then cooperates with the forming guide seat installed on the lower mold core, and is inserted into the forming guide hole, thereby positioning the long bar to prevent the long bar from falling due to excessive length, thereby ensuring the fine hole accuracy of the forming, and the accuracy of the casting can be guaranteed;

[0014] 3. After the casting is formed into a casting in the mold cavity, the mold is opened, and then the casting is fitted with the upper mold core of the upper mold assembly. At this time, the upper mold assembly moves along the longitudinal drive groove to the top of the second transverse drive groove, and the lower mold moves along the longitudinal drive groove to the bottom of the second transverse drive groove. A gap is formed between the upper mold assembly and the lower mold assembly for the punching drive seat to be inserted laterally, and the punching telescopic seat installed on the punching drive seat is extended so that the drilling head is coaxially aligned with the drilling position;

[0015] 4. When drilling, the drilling lifting seat can drive the drilling head close to the drilling position of the casting, and the driving gear in the rotating drive sleeve can drive the driven gear to rotate, and the drill rod rotates in the drill seat to achieve drilling. There is no need to operate to the drilling equipment, which saves operation time, and there is no need for secondary positioning. The casting can be positioned through the upper mold core; there is no need to arrange drilling equipment separately, the site occupation of the factory is reduced, and other process equipment can be arranged, which greatly reduces the processing cost of castings;

[0016] 5. After the drilling telescopic seat is extended, the lifting and positioning rod rises, so that the top of the lifting and positioning rod supports the casting by supporting the module, thereby preventing the casting from falling, further positioning the casting, and improving the stability and accuracy of drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a die-casting mold, which hides multiple mold cylinders.

[0018] Figure 2 It is a schematic diagram of the structure of the die-casting mold in the front view direction.

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the die-casting mold when viewed from the side.

[0020] Figure 4 It is a structural schematic diagram of the fine hole forming mechanism and the slide module.

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the punching mechanism.

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the supporting lifting mechanism.

[0023] Figure 7 It is a schematic diagram of the connection between the upper mold assembly and the positioning mechanism, and a state diagram of the upper mold assembly when it is not demolded.

[0024] Figure 8 It is a schematic diagram of the connection between the upper mold assembly and the positioning mechanism, and the upper mold assembly is shown in the state after demoulding and lifting.

[0025] Fig. 9 It is a schematic diagram of the connection between the mold support and the second lifting mechanism.

[0026] Reference numerals include:

[0027] 1-Mold bracket,

[0028] 11-upper mold module, 110-lower mold module, 111-upper mold plate, 112-upper mold core,

[0029] 113-lower mold plate, 114-lower mold core, 115-mold release drive cavity, 116-mold release drive seat,

[0030] 117- demoulding rod, 118- demoulding hole, 119- side drive plate,

[0031] 12-fine hole forming mechanism, 120-first transverse driving groove, 121-forming guide seat,

[0032] 122-first lateral driving seat, 123-side mounting seat, 124-first through hole, 125-second through hole, 126-long bar, 127-forming guide hole,

[0033] 13-slide module, 131-slide block, 132-bottom slide slot, 133-oblique guide hole,

[0034] 134- oblique guide rod, 135- side sliding block,

[0035] 14-longitudinal drive groove, 141-top drive seat, 142-first mold lifting cylinder,

[0036] 143- bottom drive seat, 144- second mold lifting cylinder, 145- third mold telescopic cylinder,

[0037] 146- fourth mold telescopic cylinder, 147- second lateral drive seat,

[0038] 2-punching mechanism, 21-second transverse driving groove,

[0039] 210-punching drive seat, 211-punching telescopic seat, 212-punching lifting seat, 213-punching drive sleeve, 214-rotating drive sleeve, 2141-first drive slot, 2142-second drive slot, 2143-power rod, 2144-driving shaft 215-drill seat, 216-drill rod, 217-driving gear, 218-driven gear, 219-iron scrap waste tray,

[0040] 22-Support lifting mechanism,

[0041] 221-lifting positioning rod, 222-top concave hole, 223-buffer rod, 224-lateral drive hole,

[0042] 225-buffer block, 2251-first inclined surface, 2252-second inclined surface, 2253-third inclined surface,

[0043] 2254-the fourth inclined surface, 226-the top annular groove, 227-the support seat, 228-the positioning block,

[0044] 3-positioning mechanism, 31-first lifting mechanism, 311-first positioning guide hole,

[0045] 312-second positioning guide hole, 313-positioning guide column, 314-first fitting groove,

[0046] 315- rack driving groove, 316- first driving gear, 317- first driving rack,

[0047] 32- Second lifting mechanism,

[0048] 321-adsorption guide column, 322-side drive slot, 323-lateral moving seat, 324-folding rod,

[0049] 325-adsorption drive seat, 326-adsorption guide hole, 327-adsorption transmission screw sleeve,

[0050] 33-Top drive slot,

[0051] 331-top lifting cylinder, 332-connecting seat, 333-external receiving groove, 334-first movable rod,

[0052] 335 - second movable rod, 336 - third movable rod. DETAILED DESCRIPTION

[0053] The present invention is described in detail below with reference to the accompanying drawings.

[0054] like Figure 1-9 As shown, a die-casting mold for fine holes of high-precision aluminum alloy parts.

[0055] The mold support 1 includes a longitudinal driving groove 14 arranged longitudinally and a first transverse driving groove 120 and a second transverse driving groove 21 arranged transversely. The first transverse driving groove 120 and the second transverse driving groove 21 are transversely coaxially aligned. The first transverse driving groove 120, the second transverse driving groove 21 and the longitudinal driving groove 14 are vertically connected to each other and form a cross groove structure. The longitudinal driving groove 14 is provided with an upper mold module 11 and a lower mold module 110. The upper mold module 11 includes an upper mold module plate 111 and an upper mold core 112 installed at the bottom of the upper mold module plate 111. The lower mold module 110 includes a lower mold plate 113 and a lower mold core 114 installed on the top of the lower mold plate 113. The upper mold core 112 and the lower mold core 114 form a mold cavity. A side drive plate 119 installed in the first transverse drive groove 120 is provided between the upper mold module 11 and the lower mold module 110. The side drive plate 119 is used to guide the lower mold to cooperate with the upper mold module 11. When the upper mold module 11 and the lower mold module 110 are close to or away from each other, there is no need to adopt the sliding cooperation of the guide rod and the guide hole, which reduces the opening of the mold and reduces the production cost of the mold.

[0056] The upper mold assembly 11 and the lower mold assembly 110 can be guided to move vertically under the guidance of the longitudinal driving groove 14 to achieve stable mold opening and closing; after mold closing, the upper mold core 112 and the lower mold core 114 form a mold cavity, which can be used to form high-precision aluminum alloy castings.

[0057] Specifically, a first mold lifting cylinder 142 is provided at the top of the mold support 1, and a top driving seat 141 located at the top of the upper mold assembly plate 111 is also provided at the longitudinal driving groove 14. The driving end of the first mold lifting cylinder 142 is connected to the top driving seat 141. Driven by the first mold lifting cylinder 142, the top driving seat 141 can move up and down in the longitudinal driving groove 14, and the upper mold assembly 11 installed at the bottom of the top driving seat 141 can move close to or away from the lower mold assembly 110, thereby realizing mold opening and mold closing. A second mold lifting cylinder 144 is provided at the bottom of the mold support 1, and the driving end of the second mold lifting cylinder 144 is connected to the bottom driving seat 143. Driven by the second mold lifting cylinder 144, the lower mold assembly 110 installed at the top of the bottom driving seat 143 can move close to or away from the upper mold assembly 11, thereby realizing mold opening and mold closing. In addition, a demolding drive cavity 115 is formed on the top of the bottom driving seat 143, and the demolding drive cavity 115 is equipped with a demolding drive seat 116 that can move up and down, and the demolding drive seat 116 is equipped with multiple demolding rods 117, and the lower model core 114 and the lower mold assembly plate 113 are respectively coaxially formed with demolding holes 118 for the demolding rods 117 to pass through. When the mold is opened, the demolding rod 117 in the demolding drive cavity 115 is driven by the lifting cylinder to rise, and the demolding rod 117 passes through the demolding hole 118 to detach the casting located in the lower model core 114, thereby realizing demolding and preventing the product from sticking to the lower model core 114.

[0058] The molding cavity is arranged with a fine hole molding mechanism 12, which includes a molding guide seat 121 slidably mounted on the lower model core 114 and a long rod 126 that can approach or move away from the molding guide seat 121, and the molding guide seat 121 is formed with a molding guide hole 127 for the long rod 126 to be inserted; the first transverse driving groove 120 is slidably mounted with a first transverse driving seat 122, and the first transverse driving seat 122 is mounted with a side mounting seat 123, the outer end of the long rod 126 is mounted on the side mounting seat 123, the side driving plate 119 is formed with a first through hole 124 for the long rod 126 to move through, and the lower model core 114 is formed with a second through hole 125 for the long rod 126 to move through. When closing the mold, the first transverse driving seat 122 equipped with the side mounting seat 123 moves inward along the first transverse driving groove 120, and the long rod 126 passes through the first through hole 124 and the second through hole 125 in turn and cooperates with the forming guide seat 121 installed on the lower model core 114, and is inserted into the forming guide hole 127, thereby positioning the long rod 126 to prevent the long rod 126 from falling due to its excessive length, thereby ensuring the precision of the fine holes in the molding and the precision of the casting.

[0059] A third mold telescopic cylinder 145 is installed on the right side of the mold bracket 1. The driving end of the third mold telescopic cylinder 145 is connected to the first transverse driving seat 122 of the first transverse driving groove 120 to drive the long rod 126 to move laterally closer to or away from the mold cavity.

[0060] Furthermore, a slide module 13 is arranged between the upper mold assembly 11 and the lower mold assembly 110. The slide module 13 includes an oblique guide rod 134 installed on the upper mold assembly plate 111 and a slide block 131 slidably installed on the lower mold core 114. The slide block 131 is formed with an oblique guide hole 133 for the oblique guide rod 134 to move through; the lower mold core 114 is formed with a bottom slide groove 132 for the slide block 131 to move laterally. Side guide plates are installed on both sides of the bottom slide groove 132. The side guide plates are formed with side guide rails along the length direction. The side wall of the slide block 131 is formed with a side sliding block 135 that slidably cooperates with the side guide rails. When the mold is closed, the oblique guide rod 134 installed on the upper mold assembly plate 111 will drop and be inserted into the oblique guide hole 133 of the slide block 131, which will drive the slide block 131 to move laterally inward along the bottom slide groove 132 to achieve mold closing.

[0061] The forming guide seat 121 is installed on the inner end surface of the slide block 131. The slide block 131 is laterally coaxially aligned with the long rod 126. Therefore, when the mold is closed, the forming guide seat 121 will move toward the interior of the lower model core 114 under the action of the slide block 131, allowing the long rod 126 to be inserted into the forming guide hole 127, positioning the long rod 126, and ensuring that the long rod 126 is located in the mold cavity and does not move, which is beneficial to the hole forming of the casting.

[0062] The second transverse driving groove 21 is provided with a punching mechanism 2, which includes a punching driving seat 210 slidably installed in the second transverse driving groove 21, and a fourth mold telescopic cylinder 146 is installed on the left side of the mold bracket 1, and the driving end of the fourth mold telescopic cylinder 146 is connected to the punching driving seat 210 of the second transverse driving groove 21.

[0063] The punching drive seat 210 is equipped with a punching telescopic seat 211 that can be laterally telescopic, the punching telescopic seat 211 is equipped with a punching lifting seat 212 that can move longitudinally, and a punching module is installed on the top of the punching lifting seat 212; the punching module includes a punching drive sleeve 213 embedded in the punching lifting seat 212, and a rotating drive sleeve 214 is installed on the top of the punching drive sleeve 213. The rotating drive sleeve 214 is equipped with a pair of drilling heads arranged at intervals, and the drilling head includes a drill seat 215 installed on the top of the rotating drive sleeve 214 and a drill rod 216 installed on the top of the drill seat 215. A rotatable driving gear 217 and a pair of driven gears 218 meshing with the driving gear 217 are installed in the rotating drive sleeve 214. The two driven gears 218 are radially arranged on the left and right sides of the driving gear 217, respectively, and one of the driven gears 218 rotationally drives one of the drilling heads to rotate, and the other driven gear 218 rotationally drives the other drilling head to rotate. In this embodiment, after the casting is formed into a casting in the mold cavity, the mold is opened, and then the casting is fitted with the upper mold core 112 of the upper mold module 11. At this time, the upper mold module 11 moves along the longitudinal drive groove 14 to the top of the second transverse drive groove 21, and the lower mold moves along the longitudinal drive groove 14 to the bottom of the second transverse drive groove 21. A gap is formed between the upper mold module 11 and the lower mold module 110 for the punching drive seat 210 to be inserted laterally, and the punching telescopic seat 211 installed on the punching drive seat 210 is extended so that the drilling head is coaxially aligned with the drilling position.

[0064] When drilling, the drilling lifting seat 212 can drive the drilling head close to the drilling position of the casting, and the driving gear 217 in the rotating driving sleeve 214 can drive the driven gear 218 to rotate, and the drill rod 216 rotates in the drill seat 215 to achieve drilling. There is no need to operate to the drilling equipment, which saves the operation time, and there is no need for secondary positioning. The casting can be positioned through the upper mold core; there is no need to arrange drilling equipment separately, the site occupation of the factory is reduced, and other process equipment can be arranged, which greatly reduces the processing cost of the casting.

[0065] Preferably, a drill drive cavity is formed in the rotating drive sleeve 214, and a first drive groove 2141 coaxially aligned with the drilling drive sleeve 213 and a pair of second drive grooves 2142 cooperating with the drilling head are formed in the drill drive cavity. The second drive groove 2142 is installed with a power rod 2143 inserted into the drill seat 215, and the driven gear 218 is sleeved on the power rod 2143. The first drive groove 2141 is installed with a driving shaft 2144. The driving shaft 2144 rotates under the drive of the motor, and the driving gear sleeved on the driving shaft 2144 and the driven gear 218 sleeved on the power rod 2143 rotate, so that the drill rod 216 can rotate on the drill seat 215, and then the drilling of the casting is achieved under the lifting drive of the drilling lifting seat 212.

[0066] It should be noted that the punching telescopic seat 211 is driven by a telescopic cylinder installed on the punching driving seat 210 to perform telescopic movement, and a lifting cylinder is arranged inside the punching telescopic seat 211 to drive the punching lifting seat 212 to perform lifting movement.

[0067] It should be noted that a funnel-shaped iron chip waste tray 219 is installed on the top of the rotating drive sleeve 214. When drilling, the iron chips are supported and stored by the iron chip waste tray 219, and the iron chips will not fall into the lower mold core 114 of the lower mold module 110, affecting the subsequent casting molding.

[0068] In addition, when drilling, in order to prevent the casting from falling off the upper model core 112, the drilling telescopic seat 211 is also provided with a supporting jacking mechanism 22 for supporting and positioning the product after casting. The supporting jacking mechanism 22 includes a lifting and positioning rod 221, and a support module that can support the casting is installed on the top of the lifting and positioning rod 221. After the drilling telescopic seat 211 is extended, the lifting and positioning rod 221 is raised, so that the top of the lifting and positioning rod 221 supports the casting through the support module, thereby preventing the casting from falling, further positioning the casting, and improving the stability and accuracy of drilling.

[0069] Specifically, the expansion module includes a top recessed hole 222 formed at the top of the lifting and positioning rod 221, the top recessed hole 222 is installed with a buffer rod 223 that is elastically lifted by a compression spring, the top recessed hole 222 is radially formed with a transverse driving hole 224, the transverse driving hole 224 is slidably installed with a buffer block 225 that elastically moves inward, the bottom of the buffer rod 223 is formed with a first inclined surface 2251, the inner end of the buffer block 225 is formed with a second inclined surface 2252 that slides with the first inclined surface 2251, the outer end of the buffer block 225 is formed with a third inclined surface 2253, the top of the lifting and positioning rod 221 is coaxially formed with a top annular groove 226, the top annular groove 226 is axially slidably installed with a support seat 227 that elastically retracts driven by a tension spring, and the bottom of the support seat 227 is formed with a fourth inclined surface 2254 that slides with the outer end of the buffer block 225. The lifting and positioning rod 221 rises under the action of the lifting cylinder, and the buffer rod 223 located at the top of the lifting and positioning rod 221 will press down after it abuts against the casting. The buffer block 225 will slide with the second inclined surface 2252 of the radially arranged buffer block 225 through the first inclined surface 2251 on the bottom surface, and the buffer block 225 will move radially outward. The support seat 227 located in the top annular groove 226 will achieve lifting through the sliding cooperation between the third inclined surface 2253 and the fourth inclined surface 2254.

[0070] A locking block 228 is formed on the top of the support seat 227 and cooperates with the concave groove of the casting. After the support seat 227 is lifted up, the locking block 228 on the top cooperates with the groove of the casting to further position the casting and prevent the casting from shifting on the upper model core 112 when drilling.

[0071] It should be noted that the lifting and positioning rod 221 is connected by two lifting blocks, and the two lifting blocks are movably connected through holes and a guide rod structure. The guide rod sleeve is provided with a compression spring, and the lifting and positioning rod 221 has a buffering effect when it is pressed down.

[0072] Furthermore, after the casting is demoulded from the lower model core 114, the upper mold module 11 rises. At this time, the casting needs to be fitted with the upper model core 112, and the casting is not prevented from falling from the upper model core 112 due to gravity. In this regard, the top drive seat 141 is provided with a positioning mechanism 3 to prevent the product from falling from the upper model core 112. The positioning mechanism 3 includes a first positioning guide hole 311 longitudinally formed in the upper mold module 11, and a longitudinally movable adsorption guide column 321 is slidably installed in the first positioning guide hole 311. The bottom of the adsorption guide column 321 is installed with an adsorption plate that fits the casting. In this embodiment, after the casting is demoulded from the lower model core 114, the adsorption guide column 321 is pressed down along the first positioning guide hole 311, and the adsorption plate is pressed against the casting. The casting is vacuum adsorbed by the adsorption plate. When the upper mold module 11 is raised, the casting can be prevented from falling from the upper model core 112, which is convenient for subsequent drilling operations.

[0073] The top driving seat 141 is formed with a second positioning guide hole 312 coaxially aligned with the first positioning guide hole 311, and a positioning guide column 313 capable of longitudinal movement is slidably installed between the first positioning guide hole 311 and the second positioning guide hole 312, and the bottom surface shape of the positioning guide column 313 is adapted to the upper model core 112. After mold closing, the positioning guide column 313 is pressed down along the second positioning guide hole 312 and the first positioning guide hole 311, so that the bottom surface of the positioning guide column 313 is matched with the upper model core 112, which is convenient for the molding of the casting. After molding, the positioning guide column 313 rises and retreats along the first positioning guide hole 311 and the second positioning guide hole 312 to the second positioning guide hole 312, and a space is reserved for the adsorption guide column 321 to be inserted into the first positioning guide hole 311 to adsorb the product.

[0074] Specifically, the top driving seat 141 is provided with a first lifting mechanism 31 for driving the positioning guide column 313 to perform lifting and lowering movements between the first positioning guide hole 311 and the second positioning guide hole 312. The first lifting mechanism 31 includes a first engaging groove 314 formed along the length direction of the positioning guide column 313. The top driving seat 141 is formed with a rack driving groove 315 connected to the second positioning guide hole 312. The rack driving groove 315 is installed with a rotatable first driving gear 316. The first engaging groove 314 is installed with a first driving rack 317 meshing with the first driving gear 316. The first driving gear 316 located on the top driving seat 141 can mesh with the first driving rack 317 of the positioning guide column 313, thereby driving the positioning guide column 313 to perform lifting and lowering movements in the second positioning guide hole 312, and can also perform lifting and lowering movements in the first positioning guide hole 311. In this embodiment, after the product is cast, the first lifting mechanism 31 drives the positioning guide column 313 to descend, demolding the casting from the upper model core 112, and then the positioning guide column 313 rises and retracts into the second positioning guide hole 312, reserving space for the adsorption guide column 321 to be inserted into the first positioning guide hole 311 to adsorb the product.

[0075] Subsequently, a connecting seat 332 is provided on the top of the upper mold plate 111, and a top driving seat 141 is formed with a top driving groove 33, and a top lifting cylinder 331 is installed on the top driving groove 33, and the driving end of the top lifting cylinder 331 is connected to the connecting seat 332; initially, the piston rod of the top lifting cylinder 331 retracts, and at this time there is almost no gap between the top driving seat 141 and the upper mold plate 111; when the positioning guide column 313 rises and retracts to the second positioning guide hole 312, the piston rod of the top lifting cylinder 331 extends out, so that there is a gap between the top driving seat 141 and the upper mold plate 111 for the adsorption guide column 321 to enter the first positioning guide hole 311 horizontally.

[0076] The top driving seat 141 is provided with a second lifting mechanism 32 for driving the adsorption guide column 321 to perform lifting movement in the positioning guide hole. The second lifting mechanism 32 includes a side driving groove 322 laterally formed on the mold bracket 1. The side driving groove 322 is equipped with a lateral moving seat 323 capable of lateral movement. The lateral moving seat 323 is equipped with a folding rod 324 capable of multi-stage movement. An adsorption driving seat 325 is installed at the end of the folding rod 324. Driven by the lateral cylinder, it can approach or move away from the longitudinal driving groove 14 along the side driving groove 322. When the adsorption guide column 321 needs to enter the first positioning guide hole 311 laterally, the adsorption driving seat 325 moves to the top of the first positioning guide hole 311.

[0077] The adsorption drive seat 325 is formed with an adsorption guide hole 326 coaxially aligned with the positioning guide hole, and the adsorption guide column 321 is coaxially installed in the adsorption guide hole 326. The outer ring of the adsorption guide column 321 is formed with a screw structure along the length direction, and the adsorption guide hole 326 is installed with an adsorption transmission screw sleeve 327 that is transmission-matched with the screw structure of the adsorption guide column 321; the adsorption transmission screw sleeve 327 rotates under the drive of the gear set and the motor, and is transmission-matched with the screw structure of the adsorption guide column 321, so that the adsorption guide column 321 can move up and down. When there is a gap between the top drive seat 141 and the upper mold assembly plate 111, the adsorption guide column 321 descends, so that the adsorption plate is pressed down and fits with the top of the casting to achieve adsorption of the casting, and then the top drive seat 141 and the upper mold assembly 11 are driven by the first mold cylinder to rise as a whole until the upper mold core is located at the top of the second transverse drive groove 21, and the punching telescopic seat 211 can enter the longitudinal drive groove 14, and then the rise can be stopped. After the suction plate is pressed down and adsorbed, the top driving seat 141 and the upper mold assembly 11 are lifted up along the longitudinal driving groove 14 as a whole without the casting falling off.

[0078] Preferably, the folding rod 324 includes a first movable rod 334, a second movable rod 335 and a third movable rod 336 which are hinged in sequence, wherein the other end of the first movable rod 334 is connected to the transverse moving seat 323, and the other end of the third movable rod 336 is connected to the adsorption driving seat 325; the outer side wall of the upper mold plate 111 is vertically formed with an outer accommodating groove 333 for accommodating a part of the folding rod 324. In the present embodiment, after the adsorption plate of the adsorption guide column 321 adsorbs the casting and rises as a whole, the upper mold assembly plate 111 will rise along the longitudinal drive groove 14. At this time, the first movable rod 334, the second movable rod 335 and the third movable rod 336 will gradually change from a straight line shape to a "B" shape, that is, the third movable rod 336 is horizontally located at the top of the upper mold assembly plate 111, the second movable rod 335 is vertically located in the outer accommodating groove 333 of the outer side wall of the upper mold assembly plate 111, and the first movable rod 334 is located in the side drive groove 322 of the mold bracket 1, ensuring that the adsorption drive seat 325 and the lateral movable seat 323 remain connected. After the drilling is completed, the upper mold plate 111 and the top drive seat 141 will descend along the longitudinal drive groove 14, and the adsorption guide column 321 will retreat until the adsorption drive seat 325 and the lateral moving seat 323 are horizontally aligned. The lateral moving seat 323 can move outward along the side drive seat, driving the adsorption drive seat 325 to retreat from the upper mold plate 111 to the side drive groove 322; so that the positioning guide column 313 can enter the first positioning guide hole 311 for subsequent casting molding plugging operations.

[0079] In addition, there are multiple first positioning guide holes 311, and the first positioning guide holes 311 are coaxially aligned with the drilling position. When drilling, the lifting and positioning rod 221 supporting the jacking mechanism 22 cooperates with the support module to lift and position the casting. The adsorption guide column 321 can then retreat from the first positioning guide hole 311, so that when drilling, a hole position is reserved for the drill rod 216 to pass through.

[0080] In summary, it can be seen that the present invention has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0081] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A high-precision aluminum alloy part fine-pore die-casting mold, comprising a mold support, characterized in that: The mold support is formed with a longitudinal driving groove arranged longitudinally and a first transverse driving groove and a second transverse driving groove arranged transversely, the first transverse driving groove and the second transverse driving groove are transversely coaxially aligned, and the first transverse driving groove, the second transverse driving groove and the longitudinal driving groove are vertically connected to each other to form a cross groove structure; The longitudinal driving groove is provided with an upper mold module and a lower mold module, the upper mold module includes an upper mold module plate and an upper mold core installed at the bottom of the upper mold module plate; the lower mold module includes a lower mold module plate and a lower mold core installed at the top of the lower mold module plate, the upper mold core and the lower mold core form a mold cavity, a side driving plate installed in the first transverse driving groove is provided between the upper mold module and the lower mold module, the side driving plate is used for guiding the lower mold to cooperate with the upper mold module; the molding cavity is arranged with a fine hole molding mechanism; The fine hole forming mechanism comprises a forming guide seat slidably mounted on the lower mold core and a long bar that can approach or move away from the forming guide seat, the forming guide seat is formed with a forming guide hole for the long bar to be inserted; the first transverse driving groove is slidably mounted with a first transverse driving seat, the first transverse driving seat is mounted with a side mounting seat, the outer end of the long bar is mounted on the side mounting seat, the side driving plate is formed with a first through hole for the long bar to move through, and the lower mold core is formed with a second through hole for the long bar to move through; The second transverse driving groove is provided with a punching mechanism, the punching mechanism comprises a punching driving seat slidably mounted in the second transverse driving groove, the punching driving seat is provided with a punching telescopic seat capable of transverse extension and retraction, the punching telescopic seat is provided with a punching lifting seat capable of longitudinal movement, and a punching module is provided on the top of the punching lifting seat; the punching module comprises a punching driving sleeve embedded in the punching lifting seat, a rotating driving sleeve is provided on the top of the punching driving sleeve, a pair of drilling heads arranged at intervals are provided on the rotating driving sleeve, the drilling head comprises a drill seat mounted on the top of the rotating driving sleeve and a drill rod mounted on the top of the drill seat, a driving gear capable of rotation is provided in the rotating driving sleeve, a pair of driven gears meshing with the driving gear for transmission, the two driven gears are radially arranged on the left and right sides of the driving gear respectively, one of the driven gears rotationally drives one of the drilling heads to rotate, and the other driven gear rotationally drives the other drilling head to rotate; The perforated telescopic seat is also provided with a supporting jacking mechanism for supporting and positioning the product after casting. The supporting jacking mechanism includes a lifting and positioning rod, and a support module capable of resisting the casting is installed on the top of the lifting and positioning rod.

2. The high-precision die-casting mold for fine holes of aluminum alloy parts according to claim 1, characterized in that: The longitudinal driving groove is also provided with a top driving seat located at the top of the upper mold assembly plate, the top driving seat can move up and down in the longitudinal driving groove, the top driving seat is provided with a positioning mechanism to prevent the product from falling from the upper mold core, the positioning mechanism includes a first positioning guide hole longitudinally formed on the upper mold assembly, the first positioning guide hole is slidably installed with a positioning guide column that can move longitudinally, the bottom surface shape of the positioning guide column is adapted to the upper mold core, and the top driving seat is formed with a second positioning guide hole coaxially aligned with the first positioning guide hole.

3. The high-precision die-casting mold for fine holes of aluminum alloy parts according to claim 2, characterized in that: The top driving seat is provided with a first lifting mechanism that drives the positioning guide column to perform lifting and lowering movements between the first positioning guide hole and the second positioning guide hole. The first lifting mechanism includes a first engaging groove formed along the length direction of the positioning guide column. The top driving seat is formed with a rack driving groove that is connected to the second positioning guide hole. The rack driving groove is equipped with a first rotatable driving gear, and the first engaging groove is equipped with a first driving rack that meshes with the first driving gear for transmission.

4. The high-precision aluminum alloy part fine-pore die-casting mold according to claim 3, characterized in that: A connecting seat is provided at the top of the upper mold assembly plate, a top driving seat is formed with a top driving groove, a top lifting cylinder is installed in the top driving groove, and the driving end of the top lifting cylinder is connected to the connecting seat; the first positioning guide hole is also slidably installed with an adsorption guide column that can move longitudinally, and an adsorption plate that fits the casting is installed at the bottom of the adsorption guide column.

5. The high-precision aluminum alloy part fine-pore die-casting mold according to claim 4, characterized in that: The top driving seat is provided with a second lifting mechanism that drives the adsorption guide column to perform lifting movement in the first positioning guide hole. The second lifting mechanism includes a side driving groove arranged on the mold bracket. The side driving groove is equipped with a lateral moving seat that can move laterally. The lateral moving seat is equipped with a folding rod that can move in multiple sections. The end of the folding rod is equipped with an adsorption driving seat. The adsorption driving seat is formed with an adsorption guide hole that is coaxially aligned with the first positioning guide hole. The adsorption guide column is coaxially installed in the adsorption guide hole. The outer ring part of the adsorption guide column is formed with a screw structure along the length direction. The adsorption guide hole is equipped with an adsorption transmission screw sleeve that is transmission-matched with the screw structure of the adsorption guide column.

6. The high-precision aluminum alloy part fine-pore die-casting mold according to claim 5, characterized in that: The folding rod includes a first movable rod, a second movable rod and a third movable rod hinged in sequence, wherein the other end of the first movable rod is connected to the transverse moving seat, and the other end of the third movable rod is connected to the adsorption driving seat; the outer side wall of the upper mold assembly plate is vertically formed with an external accommodating groove for accommodating a part of the folding rod.

7. A high-precision die-casting mold for fine holes of aluminum alloy parts according to claim 1 or 6, characterized in that: A drill bit driving cavity is formed in the rotating driving sleeve, and a first driving groove coaxially aligned with the punching driving sleeve and a pair of second driving grooves cooperating with the drilling head are formed in the drill bit driving cavity. A power rod inserted into the drill bit seat is installed in the second driving groove, and a driven gear sleeve is arranged on the power rod.

8. The high-precision aluminum alloy part fine-pore die-casting mold according to claim 7, characterized in that: The expansion module includes a top concave hole formed at the top of the lifting and positioning rod, the top concave hole is installed with an elastically raised buffer rod, the top concave hole is radially formed with a transverse driving hole, the transverse driving hole is slidably installed with a buffer block that elastically moves inward, the bottom of the buffer rod is formed with a first inclined surface, the inner end of the buffer block is formed with a second inclined surface that slides with the first inclined surface, the outer end of the buffer block is formed with a third inclined surface, the top of the lifting and positioning rod is coaxially formed with a top annular groove, the top annular groove is axially slidably installed with an elastically retracted support seat, and the bottom of the support seat is formed with a fourth inclined surface that slides with the outer end of the buffer block.

9. The high-precision aluminum alloy part fine-pore die-casting mold according to claim 8, characterized in that: A sliding module is arranged between the upper mold module and the lower mold module, and the sliding module includes an oblique guide rod installed on the upper mold assembly plate and a sliding block slidably installed on the lower mold core, and the sliding block is formed with an oblique guide hole for the oblique guide rod to move through; the lower mold core is formed with a bottom sliding groove for the sliding block to move laterally, and side guide plates are installed on both sides of the bottom sliding groove, and the side guide plates are formed with side guide rails along the length direction, and the side walls of the sliding block are formed with side sliding blocks that slide with the side guide rails, and the formed guide seat is installed on the inner end face of the sliding block, and the sliding block is laterally coaxially aligned with the long bar.

10. The high-precision aluminum alloy part fine-pore die-casting mold according to claim 9, characterized in that: A first mold lifting cylinder is arranged on the top of the mold bracket, and a driving end of the first mold lifting cylinder is connected to the top driving seat; a second mold lifting cylinder is arranged on the bottom of the mold bracket, and a driving end of the second mold lifting cylinder is connected to the bottom driving seat; a demoulding driving cavity is formed on the top of the bottom driving seat, and a demoulding driving seat capable of lifting and lowering movement is installed in the demoulding driving cavity, and a plurality of demoulding rods are installed on the demoulding driving seat, and the lower mold core and the lower mold assembly plate are respectively coaxially formed with demoulding holes for the demoulding rods to pass through; a third mold telescopic cylinder is installed on the left side of the mold bracket, and a driving end of the third mold telescopic cylinder is connected to the punching driving seat of the second transverse driving groove.

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