CN112808971A - Core-pulling quick-change guide mechanism of die-casting die - Google Patents
Core-pulling quick-change guide mechanism of die-casting die Download PDFInfo
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- CN112808971A CN112808971A CN202011614456.9A CN202011614456A CN112808971A CN 112808971 A CN112808971 A CN 112808971A CN 202011614456 A CN202011614456 A CN 202011614456A CN 112808971 A CN112808971 A CN 112808971A
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- core
- quick
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- pulling needle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
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- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a core-pulling quick-change guide mechanism of a die-casting die, wherein a quick-change plate of a core-pulling needle sleeve is provided with a plurality of guide holes which are 0.2 larger than the single side of a core-pulling needle body, so that a primary guide effect is formed in the middle of a core-pulling needle, the core-pulling needle cannot sink before entering the core-pulling needle sleeve, and the core-pulling needle sleeve can smoothly enter the core-pulling needle sleeve; the core-pulling needle sleeve quick-change plate is split in the middle of the guide hole to form a first quick-change plate and a second quick-change plate, two positioning pins are installed at the same time, the roundness and the position tolerance of the guide hole after the first quick-change plate and the second quick-change plate are installed are guaranteed, and the function of the guide hole cannot be lost. The mechanism provided by the invention optimizes the quick change of the core pulling and simultaneously plays a role in guiding the long core pulling, so that the core pulling can smoothly extract a product, the reliability of the mechanism is ensured, and the effect on a production field is obvious. The core-pulling quick-change guide mechanism is suitable for various multi-axial-length core-pulling structures, can effectively prolong the core-pulling service life, and saves the production and maintenance time.
Description
Technical Field
The invention belongs to the field of mechanical equipment, and particularly relates to a core-pulling quick-change guide mechanism of a die-casting die.
Background
In recent years, with the requirement of light weight of automobiles, the integration level of parts of an engine is higher and higher, the structure of a die casting is more and more complex, the occurrence of intensive oil passage holes is a difficult problem brought to a die casting boundary, the oil passage holes are not only dense, but also are often long in oil passage, the production line is stopped due to the clamping stagnation and the breakage of a loose core in the actual production process, and the loss of a company is very large.
The utility model provides an engine chain lid casing, discovery is because the product structure is special in the mould review, there are many intensive oil duct holes in product cover side, and length has exceeded conventional loosing core, if die-casting shaping is not carried out in these oil duct holes, mould simple structure, production is stable, but this position will be thicker, the high danger position of thermal junction, lead to follow-up machine-shaping, the gas shrinkage cavity exposes, and can cause the gaseous blowby between the oil duct hole, cause the product bad, so this road is certainly not feasible, if adopt the multiaxis structure of loosing core to carry out the shaping of this product, the jamming of long loosing core and the quick change problem of core pulling cover need be solved.
Disclosure of Invention
The purpose of the invention is as follows: in order to solve the defects of the prior art, the invention provides a core-pulling quick-change guide mechanism of a die-casting die.
The technical scheme is as follows: a core-pulling quick-change guide mechanism of a die-casting die comprises a first oil cylinder, an oil cylinder bracket, a core-pulling needle seat, a core-pulling needle sleeve quick-change plate, a product, a second oil cylinder, a coupler, a guide rail, a core-pulling needle and a core-pulling needle sleeve;
the quick-change plate I and the quick-change plate II are arranged on the guide plate I;
the quick change plate of the core-pulling needle sleeve is provided with a plurality of guide holes which are 0.2 larger than the single edge of the core-pulling needle body, so that a primary guide effect is formed in the middle of the core-pulling needle, the core-pulling needle cannot sink before entering the core-pulling needle sleeve, and the core-pulling needle can smoothly enter the core-pulling needle sleeve;
the core-pulling needle sleeve quick-change plate is split in the middle of the guide hole to form a first quick-change plate and a second quick-change plate, two positioning pins are installed at the same time, the roundness and the position tolerance of the guide hole after the first quick-change plate and the second quick-change plate are installed are guaranteed, and the function of the guide hole cannot be lost.
As an optimization: when the core-pulling needle sleeve is replaced, the first quick-change plate is detached, and the second quick-change plate can sink into the bottom of the positioning groove due to the clearance between the positioning groove and the second quick-change plate, so that the core-pulling needle sleeve can be taken out without the second quick-change plate.
As an optimization: the first oil cylinder and the second oil cylinder are fixedly arranged on the oil cylinder bracket respectively.
As an optimization: the oil cylinder bracket is fixedly connected with the guide rail.
As an optimization: the guide rail on install the needle file of loosing core, loose core needle file about wherein one end fixedly connected with a plurality of loose core needle, loose core 2 shaft couplings of the other end fixedly connected with of needle file, 2 the shaft coupling respectively with hydro-cylinder one and two fixed connection of hydro-cylinder, the needle file of loosing core can slide on the guide rail through the pushing action of hydro-cylinder one and hydro-cylinder two.
As an optimization: the core-pulling needle is sleeved in the core-pulling needle sleeve through the core-pulling needle sleeve quick-change plate.
As an optimization: the tail end of the core-pulling needle sleeve is connected with a product.
Has the advantages that: the invention provides a novel core-pulling quick-change guide mechanism aiming at complex multi-oil-passage long-hole products, which optimizes core-pulling quick change and plays a role in guiding a long core pulling at the same time, so that the core pulling can be smoothly pulled out of the products, the reliability of the mechanism is ensured, and the effect of a production field is obvious.
The core-pulling quick-change guide mechanism is simple in structure, suitable for various multi-shaft long core-pulling structures, different in core-pulling forming length and position, and capable of being correspondingly designed according to actual conditions, effectively prolonging the core-pulling service life, saving production and maintenance time and ensuring stability of the mechanism.
Drawings
FIG. 1 is a schematic view of a conventional mold core pulling structure of the present invention;
FIG. 2 is a schematic view of a multi-axis core pulling region of a product according to the present invention;
FIG. 3 is a schematic view of the insertion state of the core-pulling needle of the present invention;
FIG. 4 is a schematic view of the present invention showing the withdrawal of the core extracting needle;
FIG. 5 is a schematic view of the core pulling guide hole structure of the present invention;
FIG. 6 is a schematic diagram of a split type quick-change guide quick-change plate structure of the invention;
fig. 7 is a schematic view of the working principle of the quick-change plate of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below so that those skilled in the art can better understand the advantages and features of the present invention, and thus the scope of the present invention will be more clearly defined. The embodiments described herein are only a few embodiments of the present invention, rather than all embodiments, and all other embodiments that can be derived by one of ordinary skill in the art without inventive faculty based on the embodiments described herein are intended to fall within the scope of the present invention.
Examples
The product of the invention has longer core pulling length, and the condition of mechanism failure is easy to occur in the production process by adopting a conventional core pulling structure.
Fig. 1 is a core-pulling structure of a conventional mold, wherein, 1: oil cylinder I, 2: hydro-cylinder support, 3: core-pulling needle seat, 4: core-pulling needle sleeve quick-change plate and 5: product, 6: oil cylinder two, 7: a coupler and 8: guide rail, 9: core pulling needle, 10: a core-pulling needle sleeve.
Table 1 shows conventional core-pulling part materials and related processing
Fig. 2 is a schematic view of a multi-axis core pulling region of a product, and the core pulling structure of a conventional mold has the following details and defects: the second oil cylinder controls the core-pulling needle seat to move back and forth, the core-pulling needle seat drives five needles in the first area and the third area, the forming length of the needles in the second area is long, the second oil cylinder is controlled independently, the core-pulling needle sleeves in the first area, the second area and the third area are all pressed by the core-pulling needle sleeve quick-changing plate, and when the core-pulling needles in the first area, the second area and the third area are all pulled out by the oil cylinders, the 6 needles are required to be pulled out of a product, and the product can be taken out of a mold.
As shown in fig. 3 and 4, the insertion state diagram of the core-pulling needle and the drawing state diagram of the core-pulling needle are shown, because the matching section of the needle sleeve and the core-pulling needle is only 30mm (if the matching section is longer, the core-pulling needle is easily clamped in the needle sleeve, the length of the general matching section obtained by experience is 25-30mm), when the core-pulling needle is pulled away from a product, the straight section of the core-pulling needle is separated from the matching section of the needle sleeve, because the matching section of the core-pulling needle and the core-pulling needle base is shorter and has a gap, and the core-pulling needle is longer, the core-pulling needle is definitely in a sunken state under the influence of gravity, and when the product is taken out, the core-pulling needle is easily clamped between the matching section of the.
In order to solve the problem that the core pulling needle is easily clamped between the core pulling needle sleeve matching section and the clearance avoiding section, the core pulling needle can smoothly enter the core pulling sleeve matching section, and the problem that the core pulling needle is pulled away from the core pulling needle sleeve and sinks due to gravity needs to be solved, therefore, when the core pulling needle is pulled away from a product, a guide hole is required to be arranged in the middle of the core pulling needle, so that a preliminary guide effect is formed in the middle of the core pulling needle, the best position of the guide hole is arranged on a core pulling needle sleeve quick-change plate, as shown in fig. 5, a plurality of guide holes which are 0.2 larger than the single side of the core pulling needle body are arranged on the core pulling needle sleeve quick-change plate, so that the core pulling needle cannot sink before entering the core pulling needle sleeve, and the core pulling needle can smoothly enter the.
The problem of sinking of loosing core has been solved, but this needle cover quick change board of loosing core also need play the quick change effect of the needle cover of loosing core when playing the direction of loosing core, "needle cover quick change" is said as the name implies and is led to loosing core needle cover and needle to advance aluminium because of ageing wearing and tearing when loosing core the needle, make the core needle card die in the needle cover, only need demolish needle cover quick change board like this, make needle and needle cover extract simultaneously and need not break up whole set of mechanism of loosing core, also can practice thrift down the time when convenient maintenance, but the experiment discovery core needle is all the time among the guiding hole, the quick change board can't be taken out, the effect of quick change board has also lost the meaning like this, in order to solve this problem, we carry out the change as figure 6 with this quick change board. As shown in figure 6, the guide quick-change plate is split from the middle of the guide hole, two positioning pins are added, and the roundness and the position tolerance of the guide hole are ensured after the two guide plates are assembled, so that the function of the guide hole cannot be lost.
In summary, the core-pulling quick-change guide mechanism of the die-casting die comprises a first oil cylinder 1, an oil cylinder support 2, a core-pulling needle seat 3, a core-pulling needle sleeve quick-change plate 4, a product 5, a second oil cylinder 6, a coupler 7, a guide rail 8, a core-pulling needle 9 and a core-pulling needle sleeve 10. The first oil cylinder 1 and the second oil cylinder 6 are respectively and fixedly arranged on the oil cylinder bracket 2. The oil cylinder bracket 2 is fixedly connected with the guide rail 8. Guide rail 8 on install the needle file 3 of loosing core, loose core needle file 3 about both ends wherein one end fixedly connected with a plurality of loose core needle 9, loose core needle file 3's the other end fixedly connected with 2 shaft couplings 7, 2 shaft coupling 7 respectively with hydro-cylinder 1 and hydro-cylinder two 6 fixed connection, loose core needle file 3 can slide on guide rail (8) through hydro-cylinder 1 and hydro-cylinder two 6's impetus. The core-pulling needle 9 is sleeved in the core-pulling needle sleeve 10 through the core-pulling needle sleeve quick-change plate 4. The tail end of the core-pulling needle sleeve 10 is connected with a product 5.
The core-pulling quick-change guide mechanism of the die-casting die further comprises a guide hole 11, a positioning pin 12, a first quick-change plate 41 and a second quick-change plate 42. The core-pulling needle sleeve quick-change plate 4 is provided with a plurality of guide holes 11 which are 0.2 larger than the single edge of the core-pulling needle body, so that the core-pulling needle 9 can form a preliminary guide effect in the middle of the core-pulling needle, the core-pulling needle 9 can not sink before entering the core-pulling needle sleeve 10, and the core-pulling needle sleeve 10 can smoothly enter the core-pulling needle sleeve 10. The core-pulling needle sleeve quick-change plate 4 is split from the middle of the guide hole 11 to form a first quick-change plate 41 and a second quick-change plate 42, and the two positioning pins 12 are installed at the same time, so that the roundness and the position tolerance of the guide hole 11 after the first quick-change plate 41 and the second quick-change plate 42 are installed are guaranteed, and the function of the guide hole 11 cannot be lost.
As shown in fig. 7, during the quick change, the first quick change plate 41 is detached first, and since the positioning groove and the second quick change plate 42 are kept away, the second quick change plate 42 can be sunk into the bottom of the positioning groove, so that the core pin sleeve 10 can be kept away from the second quick change plate 42, the core pin sleeve 10 can be taken out, and the core guide problem can be solved, and the quick change function can be achieved.
The core-pulling quick-change guide mechanism is simple in structure, suitable for various multi-shaft long core-pulling structures, different in core-pulling forming length and position, and capable of being correspondingly designed according to actual conditions, effectively prolonging the core-pulling service life, saving production and maintenance time and ensuring stability of the mechanism.
The novel reverse-pushing type inclined pulling structure is mainly suitable for the condition that a large number of inclined holes which are inconsistent with the mold stripping direction exist in the same inclined plane on the side of the fixed mold, and the angle size of a specific accessory needs to be designed according to the actual condition. Compared with the conventional inclined drawing scheme, the structure reduces the failure rate of the die, simplifies the structure of the fixed die side die and has obvious effect in practical application.
Claims (7)
1. A core-pulling quick-change guide mechanism of a die-casting die comprises a first oil cylinder (1), an oil cylinder bracket (2), a core-pulling needle seat (3), a core-pulling needle sleeve quick-change plate (4), a product (5), a second oil cylinder (6), a coupler (7), a guide rail (8), a core-pulling needle (9) and a core-pulling needle sleeve (10); the method is characterized in that:
the quick-change plate is characterized by also comprising a guide hole (11), a positioning pin (12), a first quick-change plate (41) and a second quick-change plate (42);
the quick change plate (4) of the core-pulling needle sleeve is provided with a plurality of guide holes (11) which are 0.2 larger than the single edge of the core-pulling needle body, so that the guide holes have a preliminary guide function in the middle of the core-pulling needle (9), the core-pulling needle (9) cannot sink before entering the core-pulling needle sleeve (10), and the core-pulling needle sleeve (10) can smoothly enter the core-pulling needle sleeve;
the core-pulling needle sleeve quick-change plate (4) is split in the middle of the guide hole (11) to form a first quick-change plate (41) and a second quick-change plate (42), two positioning pins (12) are installed at the same time, the roundness and the position tolerance of the guide hole (11) after the first quick-change plate (41) and the second quick-change plate (42) are installed are guaranteed, and the function of the guide hole (11) cannot be lost.
2. The die casting die's quick change guiding mechanism of loosing core of claim 1 characterized in that: when the core-pulling needle sleeve is quickly replaced, the first quick-change plate (41) is detached firstly, and the second quick-change plate (42) can be sunk into the bottom of the positioning groove due to the clearance between the positioning groove and the second quick-change plate (42), so that the core-pulling needle sleeve (10) can be taken out by avoiding the second quick-change plate (42).
3. The die casting die's quick change guiding mechanism of loosing core of claim 1 characterized in that: the oil cylinder I (1) and the oil cylinder II (6) are respectively and fixedly arranged on the oil cylinder bracket (2).
4. The die casting die's quick change guiding mechanism of loosing core of claim 1 characterized in that: the oil cylinder bracket (2) is fixedly connected with the guide rail (8).
5. The die casting die's quick change guiding mechanism of loosing core of claim 4 characterized in that: guide rail (8) on install needle file (3) of loosing core, both ends about needle file (3) of loosing core wherein one end fixedly connected with a plurality of loose core needle (9), 2 shaft couplings (7) of the other end fixedly connected with of needle file (3), 2 shaft coupling (7) respectively with hydro-cylinder one (1) and hydro-cylinder two (6) fixed connection, needle file (3) of loosing core can slide on guide rail (8) through the impetus of hydro-cylinder one (1) and hydro-cylinder two (6).
6. The die casting die's quick change guiding mechanism of loosing core of claim 1 characterized in that: the core-pulling needle (9) is sleeved in the core-pulling needle sleeve (10) through the core-pulling needle sleeve quick-change plate (4).
7. The die casting die's quick change guiding mechanism of loosing core of claim 1 characterized in that: the tail end of the core-pulling needle sleeve (10) is connected with a product (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011614456.9A CN112808971A (en) | 2020-12-30 | 2020-12-30 | Core-pulling quick-change guide mechanism of die-casting die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011614456.9A CN112808971A (en) | 2020-12-30 | 2020-12-30 | Core-pulling quick-change guide mechanism of die-casting die |
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| CN112808971A true CN112808971A (en) | 2021-05-18 |
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| CN202011614456.9A Pending CN112808971A (en) | 2020-12-30 | 2020-12-30 | Core-pulling quick-change guide mechanism of die-casting die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193704A (en) * | 2021-12-20 | 2022-03-18 | 江苏骏伟精密部件科技股份有限公司 | Different-stroke core-pulling needle control device for injection mold |
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| DE102011105389A1 (en) * | 2011-06-22 | 2012-12-27 | Daimler Ag | Molding tool for producing cylinder crankcase of internal combustion enginec has compression mold in which core is positioned over additional movable bearing in preset portion for compensating thermal expansion of core |
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