CN209918852U - Be used for preparing motor housing forming die - Google Patents

Abstract

The utility model provides a be used for preparing motor housing forming die belongs to die-casting machine technical field, include: the three upper die cavities are used for embedding upper die cores of motor housings with different molding shapes, and a liquid flowing channel is arranged between the upper die core and the pouring gate; the lower die comprises a lower die, a lower die core and a die holder, wherein three lower die cavities corresponding to the upper die cavity are arranged at one end of the lower die, a corresponding lower die core is embedded in each lower die cavity, and the other end of the lower die is provided with the die holder; and the ejection mechanism is positioned below the lower die, wherein one end of the ejection mechanism is arranged on the die holder, and the other end of the ejection mechanism penetrates through the lower die and extends into the cavity of the lower die. The utility model provides a pair of be used for preparing motor housing forming die is provided with three shaping die cavity between last mould and lower mould, realizes the forming die of "one goes out three".

Description

Be used for preparing motor housing forming die

Technical Field

The utility model belongs to the technical field of die-casting machine, a forming die is related to, especially one kind is used for preparing motor housing forming die.

Background

Die casting (i.e., pressure casting) is a casting method in which a metal in a molten or semi-molten state is filled into a mold cavity at a high pressure and a high speed, and is solidified and formed at a high pressure to obtain a cast product, and is one of the most advanced metal forming methods. Die casting is performed in a die casting mold, which is a method for casting liquid die forging, a process that is performed on a dedicated die casting die forging machine.

The production yield and the quantity of the die-casting die are about eight percent of the total production of various dies in China, and are only inferior to those of a stamping die and a plastic die. Under the rapid development environment of international economy, the bases and centers of the international die-casting industry and the foundry industry are gradually shifted to China, China becomes a world die-casting big country, and the development and forming space in the future is large. As a processing base of the basic industry of the world mechanical industry, particularly a die casting processing base, China brings great development opportunities to domestic die casting manufacturers, and simultaneously stimulates the quality improvement of basic products in China and requires the quality and performance of mechanical equipment to be synchronously followed.

The motor housing is one of the key parts of large-scale engineering machinery and agricultural machinery, the product volume is large, the weight reaches more than ten kilograms, all the parts adopt inlet parts before, and the transportation and manufacturing cost is high.

However, when the existing die-casting die is used for manufacturing the motor housing, only one die-casting die can be used for producing two motor housings, namely, the number of the motor housings formed at one time is two, and the working efficiency is relatively low.

In summary, in order to overcome the structural defects of the existing forming mold for manufacturing the motor housings, a forming mold capable of realizing one-step forming of three motor housings needs to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a can realize that one shot forming quantity is the forming die of three motor housing.

The purpose of the utility model can be realized by the following technical proposal: a forming die for preparing a motor housing, comprising: the three upper die cavities are used for embedding upper die cores of motor housings with different molding shapes, and a liquid flowing channel is arranged between the upper die core and the pouring gate; the lower die comprises a lower die, a lower die core and a die holder, wherein three lower die cavities corresponding to the upper die cavity are arranged at one end of the lower die, a corresponding lower die core is embedded in each lower die cavity, and the other end of the lower die is provided with the die holder; and the ejection mechanism is positioned below the lower die, wherein one end of the ejection mechanism is arranged on the die holder, and the other end of the ejection mechanism penetrates through the lower die and extends into the cavity of the lower die.

In the above mold for manufacturing a motor housing, the number of the liquid-feeding passages is two, and the two liquid-feeding passages are respectively a first flow-through passage and a second flow-through passage, wherein the liquid flow rate of the first flow-through passage per unit time is twice the liquid flow rate of the second flow-through passage per unit time.

In the above mold for manufacturing a motor housing, the first flow channel is divided into two branches, namely the first branch channel and the second branch channel, wherein the liquid flow rates of the first branch channel, the second branch channel and the second flow channel in unit time are equal.

In the above molding die for manufacturing the motor housing, the output ends of the first branch passage, the second branch passage and the second flow passage all form a branch structure, and the flow rate of each branch passage is equal, wherein the two branches are respectively communicated with the positions at the two ends of the mold core.

In the above-mentioned mold for manufacturing a motor housing, the three upper mold cavities on the upper mold and the three lower mold cavities on the lower mold are correspondingly arranged in a structure like a Chinese character pin, wherein the two upper mold cavities on the two sides of the upper mold and the two lower mold cavities on the two sides of the lower mold are respectively arranged on the transverse symmetry axis of the corresponding upper mold and the corresponding lower mold, the remaining one upper mold cavity and the remaining one lower mold cavity are respectively arranged on the longitudinal symmetry axis of the corresponding upper mold and the corresponding lower mold, and the upper mold cavity or the lower mold cavity on the longitudinal symmetry axis is arranged opposite to the pouring gate.

In the above forming mold for manufacturing the motor housing, a plurality of exhaust channels are arranged at the periphery of each lower mold cavity, and each exhaust channel is arranged along the horizontal transverse line direction, the horizontal longitudinal line direction or the horizontal oblique line direction of the lower mold, wherein one end of each exhaust channel horizontally penetrates through the edge of the lower mold, and the other end of each exhaust channel corresponds to the exhaust channel on the lower mold core.

In the above forming die for manufacturing the motor housing, the lower die core is provided with a plurality of slag ladle cavities, and the position of each slag ladle cavity corresponds to the position of the exhaust channel on the lower die core.

In the above forming die for manufacturing the motor housing, the slag ladle cavity is a concave cavity, and both sides of the slag ladle cavity are inclined planes, so that the section of the slag ladle cavity forms an inverted trapezoidal structure.

In the above forming die for manufacturing the motor housing, the inclination of the slag ladle cavity close to the forming side of the die core is larger than that of the slag ladle cavity close to the exhaust passage.

In the above forming die for manufacturing the motor housing, the ejection mechanism includes a top plate, and a plurality of ejector rods are arranged on the top plate, wherein a part of the ejector rods corresponds to the forming space in the lower die core, the other part of the ejector rods corresponds to the slag ladle cavity bottom, and each ejector rod extends into the forming space and the slag ladle cavity bottom respectively.

In the above molding die for manufacturing the motor housing, the ejection mechanism further includes a plurality of support columns and guide columns, the support columns and the guide columns are connected between the lower die and the top plate, and are distributed along the horizontal longitudinal axis of the top plate, and the guide columns are also distributed at each corner of the top plate.

In the above forming die for manufacturing the motor housing, a cooling channel is further arranged between the upper die and the lower die, and cooling liquid or cooling air can be introduced into the cooling channel to cool the formed product.

In one of the above-described molding dies for manufacturing a motor housing, each of the cooling passages is located around the core, and surrounds the core in the cooling passage.

In the above molding die for manufacturing the motor housing, a pouring sleeve is embedded in the pouring gate, and the pouring sleeve is arranged in a step-shaped structure, wherein the diameter of the pouring sleeve close to the upper die is larger, and the diameter of the pouring sleeve close to the lower die is smaller.

In the above mold for manufacturing a motor housing, two notches, namely a large notch and a small notch, are disposed on the gate sleeve at the end with a smaller caliber, wherein the position of the large notch corresponds to the position of the first circulation channel, and the position of the small notch corresponds to the position of the second circulation channel.

Compared with the prior art, the utility model provides a pair of be used for preparing motor housing forming die is provided with three shaping die cavity between last mould and lower mould, realizes the forming die of "one goes out three", promptly in the same time, the three motor housing of single play article to work efficiency has been improved.

Drawings

Fig. 1 is a schematic structural view of a forming mold for manufacturing a motor housing according to the present invention.

Fig. 2 is a schematic structural view of an upper mold according to a preferred embodiment of the present invention.

Fig. 3 is a schematic structural view of a lower mold and an ejection mechanism according to a preferred embodiment of the present invention.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is a partial structural schematic view of fig. 3.

In the figure, 100, the upper die; 110. a pouring gate; 120. an upper mold cavity; 130. an upper mold core; 140. a second flow-through channel; 150. a first bypass channel; 160. a second branch passage; 170. pouring a sleeve; 171. a large notch; 172. a small notch; 200. a lower die; 210. a lower die cavity; 220. a lower mold core; 230. an exhaust passage; 240. a slag ladle cavity; 300. a die holder; 400. an ejection mechanism; 410. a top plate; 420. a top rod; 430. a support pillar; 440. a guide post; 500. a cooling channel; 510. an inlet; 520. and (7) an outlet.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 5, the utility model provides a be used for preparing motor housing forming die, include: the upper die 100 is provided with a sprue gate 110 communicated with a discharge port of the blanking equipment and three upper die cavities 120, wherein the three upper die cavities 120 are used for embedding upper die cores 130 of motor housings with different molding shapes, and a liquid flowing channel is arranged between the upper die cores 130 and the sprue gate 110; one end of the lower die 200 is provided with three lower die cavities 210 corresponding to the positions of the upper die cavities 120, a corresponding lower die core 220 is embedded in each lower die cavity 210, and the other end of the lower die 200 is provided with a die holder 300; and the ejection mechanism 400 is positioned below the lower die 200, wherein one end of the ejection mechanism 400 is mounted on the die holder 300, and the other end of the ejection mechanism 400 penetrates through the lower die 200 and extends into the lower die cavity 210.

The utility model provides a pair of be used for preparing motor housing forming die is provided with three shaping die cavity between upper die 100 and lower mould 200, realizes the forming die of "one goes out three", promptly in the same time, the three motor housing of single play article to work efficiency has been improved.

It is further preferable that the number of the liquid passing paths is two, that is, the first circulation path and the second circulation path 140, wherein the liquid passing amount of the first circulation path per unit time is twice as large as the liquid passing amount of the second circulation path 140 per unit time.

It is further preferable that the first flow channel is divided into two branch flows, i.e., a first branch flow channel 150 and a second branch flow channel 160, wherein the liquid flow rates per unit time of the first branch flow channel 150, the second branch flow channel 160, and the second flow channel 140 are equal.

In the embodiment, the liquid passing channels flowing to any two of the mold cores are integrally arranged, and then after the liquid passes a certain distance, the integrally arranged liquid passing channels are equally divided, so that three liquid passing channels are formed, the liquid flow rates in the three liquid passing channels are the same in unit time, the liquid flow rates reaching the three mold cores are ensured to be consistent in unit time, the speeds of the motor housings in each mold core during molding and cooling are further ensured to be synchronous, and the reliability of the quality of the product during mold stripping is ensured.

It is further preferable that a "branch" structure is formed at the output ends of the first branch channel 150, the second branch channel 160 and the second flow channel 140, and the flow rate of each branch channel is equal, wherein two "branches" are respectively communicated with the positions of the two ends of the mold core. Thereby further reducing the product molding time and improving the working efficiency.

Further preferably, the three upper mold cavities 120 located in the upper mold 100 and the three lower mold cavities 210 located in the lower mold 200 are correspondingly arranged in a zigzag structure, wherein two mold cavities located on two sides of the upper mold 100 and two mold cavities located on two sides of the lower mold 200 are respectively arranged on a transverse symmetry axis of the corresponding upper mold 100 or lower mold 200, the remaining one mold cavity is arranged on a longitudinal symmetry axis of the corresponding upper mold 100 or lower mold 200, and the mold cavity located on the longitudinal symmetry axis is arranged opposite to the gate 110.

In this embodiment, the gate 110 of the upper mold 100 is eccentrically disposed, and the longitudinal symmetry axis of the gate 110 coincides with the longitudinal symmetry axis of the upper mold 100. This arrangement further ensures that the flow rates of the liquid flowing from gate 110 are equal when flowing to the three mold cavities.

Preferably, as shown in fig. 1 to 5, a plurality of vent channels 230 are provided at the periphery of each lower mold cavity 210, and each vent channel 230 is provided along a horizontal transverse line direction, a horizontal longitudinal line direction, or a horizontal oblique line direction of the lower mold 200, wherein one end of each vent channel 230 horizontally penetrates through the edge of the lower mold 200, and the other end of each vent channel 230 corresponds to the position of the vent channel 230 on the lower mold core 220.

When the upper die 100 and the lower die 200 are closed, the upper die core 130 and the lower die core 220 are correspondingly spliced together, so that a large amount of gas exists in a forming space for filling liquid in the upper die core 130 and the lower die core 220, when the liquid flows into the forming space, the gas in the forming space is extruded outwards, if the exhaust channel 230 is not arranged, the explosion phenomenon is caused due to the fact that the gas is discharged everywhere, and the safety of the motor housing during forming is improved through the exhaust channel 230.

Further preferably, a plurality of slag ladle cavities 240 are arranged on the lower mold core 220, and the position of each slag ladle cavity corresponds to the position of the exhaust channel 230 on the lower mold core 220. Because the exhaust channel 230 is communicated with the forming space filled with liquid in the lower mold core 220, in order to fully fill the whole mold core with liquid, the inflow amount of the liquid is generally slightly larger than the filling amount of the forming space in the mold core, and the redundant liquid filled with the mold core overflows into the slag ladle cavity 240, and because the feeding amount is strictly controlled, the amount of the liquid overflowing into the slag ladle cavity 240 is less, so that the whole slag ladle cavity 240 is not completely filled, thereby ensuring that the exhaust channel 230 is always in a smooth state, and improving the safety and reliability of the motor housing during forming.

Further preferably, the slag ladle cavity 240 is a concave cavity, and both sides of the slag ladle cavity 240 are inclined planes, so that the cross section of the slag ladle cavity 240 forms an inverted trapezoidal structure. It is further preferred that the slope of the slag ladle chamber 240 near the molding side of the mold core is greater than the slope of the slag ladle chamber 240 near the side of the vent passageway 230. In this embodiment, the inclined plane is adopted to provide a flow guiding function, so that the liquid flowing into the slag ladle chamber 240 is always located in the slag ladle chamber 240 and does not flow outwards, and the liquid flowing into the slag ladle chamber 240 is prevented from splashing into the exhaust passage 230 due to the impact on the bottom of the slag ladle chamber 240, thereby improving the smoothness of the exhaust passage 230.

Preferably, as shown in fig. 1 to 5, the ejection mechanism 400 includes a top plate 410, and a plurality of ejector rods 420 are disposed on the top plate 410, wherein a portion of the ejector rods 420 corresponds to a position of a molding space in the lower mold core 220, another portion of the ejector rods 420 corresponds to a position of a cavity bottom of the slag ladle cavity 240, and each ejector rod 420 extends into the molding space and the cavity bottom of the slag ladle cavity 240, respectively.

After the motor housing is molded and cooled, the top plate 410 moves upwards to drive the top rod 420 to move upwards, so that the molded product falls off from the lower mold core 220, and the demolding process of the product is completed.

Further preferably, the ejection mechanism 400 further includes a plurality of support columns 430 and a plurality of guide columns 440 connected between the lower mold 200 and the top plate 410, wherein the number of the support columns 430 is a plurality, and the support columns are distributed along the horizontal longitudinal axis of the top plate 410, and the number of the guide columns 440 is a plurality, and the guide columns are respectively located at each corner of the top plate 410, so as to ensure the perpendicularity when the top plate 410 drives the ejector rod 420 to move up and down.

Preferably, as shown in fig. 1 to 5, a cooling channel 500 is further disposed between the upper mold 100 and the lower mold 200, and cooling water (cooling liquid) or cold air may be introduced into the cooling channel 500 to cool the formed product. Further preferably, each cooling channel 500 corresponds to one mold core, and the inlet 510 and the outlet 520 of each cooling channel 500 are located on the lower mold 200, wherein each cooling channel 500 is independent from each other. Therefore, the motor housing formed in each die core can independently complete the corresponding cooling operation, and the cooling rate is improved.

Further preferably, each cooling channel 500 is located around the mold core, and the mold core is surrounded in the cooling channels 500, so that products in the mold core can be synchronously cooled in all directions, and further the cooling efficiency is improved.

Preferably, as shown in fig. 1 to 5, a casting sleeve 170 is embedded in the casting port 110, and the casting sleeve 170 is disposed in a stepped structure, wherein the diameter of the casting sleeve 170 adjacent to the upper mold 100 is larger, and the diameter of the casting sleeve 170 adjacent to the lower mold 200 is smaller.

Further preferably, two notches, namely a large notch 171 and a small notch 172, are provided on the gate sleeve at the end with the smaller caliber, wherein the position of the large notch 171 corresponds to the position of the first flow channel, and the position of the small notch 172 corresponds to the position of the second flow channel 140, so that the liquid flowing from the gate 110 can flow into the liquid flowing channel along the notches.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. A mold for manufacturing a motor housing, comprising: the three upper die cavities are used for embedding upper die cores of motor housings with different molding shapes, and a liquid flowing channel is arranged between the upper die core and the pouring gate; the lower die comprises a lower die, a lower die core and a die holder, wherein three lower die cavities corresponding to the upper die cavity are arranged at one end of the lower die, a corresponding lower die core is embedded in each lower die cavity, and the other end of the lower die is provided with the die holder; and the ejection mechanism is positioned below the lower die, wherein one end of the ejection mechanism is arranged on the die holder, and the other end of the ejection mechanism penetrates through the lower die and extends into the cavity of the lower die.

2. The mold according to claim 1, wherein the number of the fluid passages is two, and the fluid passages are a first fluid passage and a second fluid passage, wherein the first fluid passage has a fluid flow rate per unit time twice as large as the fluid flow rate per unit time of the second fluid passage.

3. The motor housing forming die as claimed in claim 2, wherein the first flow passage is divided into two sub-flows, a first sub-flow passage and a second sub-flow passage, wherein the liquid flow rates per unit time of the first sub-flow passage, the second sub-flow passage and the second flow passage are equal.

4. The mold according to claim 3, wherein a branch structure is formed at the output ends of the first branch passage, the second branch passage and the second flow passage, and the flow rate of each branch passage is equal, wherein the two branches are respectively communicated with the positions of the two ends of the mold core.

5. The mold according to claim 1, wherein the three upper cavities on the upper mold and the three lower cavities on the lower mold are correspondingly arranged in a zigzag configuration, wherein the two upper cavities on both sides of the upper mold and the two lower cavities on both sides of the lower mold are respectively arranged on the lateral symmetry axes of the corresponding upper and lower molds, the remaining one upper cavity and the remaining one lower cavity are respectively arranged on the longitudinal symmetry axes of the corresponding upper and lower molds, and the upper cavity or the lower cavity on the longitudinal symmetry axis is arranged opposite to the gate.

6. The mold according to claim 1, wherein a plurality of air exhaust channels are disposed around the periphery of each lower mold cavity, and each air exhaust channel is disposed along a horizontal transverse line, a horizontal longitudinal line, or a horizontal oblique line of the lower mold, wherein one end of each air exhaust channel horizontally penetrates through the edge of the lower mold, and the other end of each air exhaust channel corresponds to the position of the air exhaust channel on the lower mold core.

7. The mold according to claim 6, wherein a plurality of cinder ladle chambers are provided in the lower mold core, and each cinder ladle chamber is located at a position corresponding to the position of the exhaust passage in the lower mold core.

8. The mold according to claim 7, wherein the slag ladle chamber is a concave chamber and both sides of the slag ladle chamber are inclined so that the cross section of the slag ladle chamber forms an inverted trapezoidal structure, wherein the inclination of the slag ladle chamber near the molding side of the mold core is greater than the inclination of the slag ladle chamber near the exhaust passage.

9. The mold according to claim 6, wherein the ejector mechanism comprises a top plate, and a plurality of ejector rods are disposed on the top plate, wherein a portion of the ejector rods corresponds to the molding space of the lower mold core, another portion of the ejector rods corresponds to the bottom of the slag ladle cavity, and each ejector rod extends into the molding space and the bottom of the slag ladle cavity respectively.

10. The mold according to claim 1, wherein a cooling channel is disposed between the upper mold and the lower mold, and the cooling channel is filled with cooling liquid or cooling air to cool the molded product.

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