CN216828584U - Electric automobile motor metal casing forming die - Google Patents

Abstract

The utility model discloses an electric automobile motor metal casing forming die, take out mechanism, right side and take out the mechanism, go up mould, lower mould, go up the abaculus and lower abaculus including pouring nozzle, reposition of redundant personnel awl, left side. The lower die comprises a lower die base and a lower die core with a lower forming groove, the upper die comprises an upper die base and an upper die core with an upper forming groove, the left side drawing mechanism is aligned with the right side drawing mechanism, the pouring nozzle penetrates through the front side of the upper die core and the upper die base, and the diffluent cone penetrates through the front side of the lower die core and the lower die base; the lower insert block is provided with a sunken through groove and strip-shaped lower teeth, the sunken through groove enables the left end and the right end of each strip-shaped lower tooth to be arranged high and the middle of each strip-shaped lower tooth to be arranged low, the upper insert block is provided with a plurality of strip-shaped upper teeth matched with the strip-shaped lower teeth, the strip-shaped upper teeth are meshed with the strip-shaped lower teeth during die assembly, and the lower die core is further provided with a middle channel communicated with the lower forming groove and the sunken through groove; the gas is guided away in time while the reliability of die assembly is ensured, and the quality of products is ensured.

Description

Electric automobile motor metal casing forming die

Technical Field

The utility model relates to a mould especially relates to an electric automobile motor metal casing forming die.

Background

As shown in fig. 1, the motor metal housing 200 is manufactured by die-casting, so that the motor metal housing 200 is not separated from the die-casting mold.

Among them, in the conventional die casting mold, since the mold opening thereof requires the upper mold and the lower mold to be moved away from each other so that the upper and lower guide pillars on the upper mold and the upper and lower guide sleeves on the lower mold are separated from each other, it is necessary to align the upper and lower guide pillars and the upper and lower guide sleeves with each other before the mold closing.

The upper guide post and the lower guide post slide relative to the upper guide sleeve and the lower guide sleeve to form clearance fit, so that the upper die and the lower die have small-range movement after die assembly; meanwhile, in the existing die-casting die, the gas remained in the forming cavity after die assembly cannot be guided away in time, so that the formed product has the defect of a bubble hole.

Therefore, it is necessary to provide a metal shell forming mold for an electric vehicle motor to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric automobile motor metal casing forming die that can in time lead away gas in order to ensure the quality after the compound die.

In order to realize the purpose, the utility model discloses an electric automobile motor metal casing forming die includes that pouring nozzle, reposition of redundant personnel awl, left side take out mechanism, right side and take out the mechanism, go up mould, lower abaculus and go up the abaculus. The upper die and the lower die are matched with each other, the lower die comprises a lower die base and a lower die core embedded in the upper end part of the lower die base, the lower die core is provided with a lower forming groove penetrating through the left side, the right side and the upper side of the lower die core, the upper die comprises an upper die base and an upper die core embedded in the lower end part of the upper die base, and the upper die core is provided with an upper forming groove penetrating through the left side, the right side and the lower side of the upper die core; the left side drawing mechanism is assembled on the lower die base, and the right side drawing mechanism is assembled on the lower die base and aligned with the left side drawing mechanism; the pouring nozzle penetrates through the front side of the upper mold core and the upper mold base at the same time, and the sprue spreader is penetrated through the front side of the lower mold core and the lower mold base at the same time; after the die is closed, the upper forming groove and the lower forming groove jointly enclose a forming cavity, the left side pumping mechanism extends into the forming cavity from the left side of the forming cavity, the right side pumping mechanism extends into the forming cavity from the right side of the forming cavity, and the spreader cone extends into the pouring nozzle; the lower insert block is assembled on the lower die base and located beside the front side of the lower die core, the upper insert block is assembled on the upper die base and located beside the front side of the upper die core, a recessed through groove penetrating through the front side, the rear side and the upper side along the front-rear direction of the lower die base and a plurality of strip-shaped lower teeth arranged at intervals along the front-rear direction of the lower die base are formed in the middle of the upper end portion of the lower insert block, the strip-shaped lower teeth extend along the left-right direction of the lower die base, the recessed through groove enables the left ends and the right ends of the strip-shaped lower teeth to be high and the middle of the strip-shaped lower teeth to be low, a plurality of strip-shaped upper teeth matched with the strip-shaped lower teeth are formed in the lower end portion of the upper insert block, the strip-shaped upper teeth are meshed with the strip-shaped lower teeth during die assembly, and a middle channel communicated with the lower forming groove and the recessed through groove is further formed in the lower die core.

Preferably, the lower embedded blocks are two and arranged in tandem in alignment, and each lower embedded block corresponds to one upper embedded block.

Preferably, an air guide channel which is arranged opposite to the shunting cone is arranged on the rear side of the lower mold core, and the air guide channel is communicated with the lower forming groove.

Preferably, the lower mold core is provided with a main runner communicating the sprue and the lower molding groove, the upper mold core is provided with an auxiliary runner matching the main runner, and the auxiliary runner is communicated with the upper molding groove.

Preferably, the upper forming groove and the lower forming groove are respectively a semicircular groove.

Preferably, the left side pulling mechanism comprises a left side slider and a left side core, the left side slider is slidably disposed on the lower die holder along the left-right direction of the lower die holder, the left end of the left side core is assembled on the left side slider, the right end of the left side core extends to the lower forming groove, the upper die holder is provided with an inclined guide pillar, and the inclined guide pillar slidably penetrates through the left side slider.

Preferably, the right side drawing mechanism comprises a linear driver, a right side sliding block and a right side core, the linear driver is located outside the right side of the lower die holder, the linear driver is further fixedly connected with the right side wall of the lower die holder, the output end of the linear driver extends into the lower die holder, the right end of the right side sliding block is assembled with the output end of the linear driver, the right end of the right side core is assembled at the left end of the right side sliding block, and the left end of the right side core extends to the lower molding groove.

Preferably, the linear actuator is a pneumatic or hydraulic cylinder.

Preferably, the upper die holder and the lower die holder are fixed at four corners of the upper die holder with upper and lower guide posts projecting downward from the upper die holder, and the lower die holder is fixed at four corners of the lower die holder with upper and lower guide sleeves matched with the upper and lower guide posts, and the upper and lower guide posts are slidably inserted in the upper and lower guide sleeves.

Compared with the prior art, the upper strip teeth of the upper embedded block and the lower strip teeth of the lower embedded block are engaged with each other after the die assembly, the upper die and the lower die after the die assembly are constrained in the front-back direction, the play between the upper die and the lower die after the die assembly is effectively prevented, conditions are created for ensuring the quality of products, the middle part of the upper end part of the lower embedded block is provided with a recessed through groove which penetrates through the front side, the rear side and the upper side along the front-back direction of the lower die holder, the left end and the right end of the lower strip teeth are arranged in a high and low middle way through the recessed through groove, so that the upper strip teeth and the lower strip teeth which are engaged with each other do not block the recessed through groove, and the gas remained in the molding cavity after the die assembly flows to the recessed through groove from the middle channel arranged on the lower die core in the process of injecting materials into the molding cavity and is discharged out of the metal shell molding die of the electric automobile, therefore, the existence of the bubble hole structure in the product is prevented.

Drawings

Fig. 1 is a perspective view of a metal housing of an electric vehicle motor.

Fig. 2 is a perspective view of the metal casing of the electric vehicle motor of the present invention when the mold is closed.

Fig. 3 is an exploded view of fig. 2.

Fig. 4 is a plan view of the metal housing of the electric vehicle motor shown in fig. 2, as viewed from above.

Fig. 5 is an internal view taken along line C-C of fig. 4.

Fig. 6 is an internal view taken along line D-D in fig. 4.

Fig. 7 is an enlarged view of a portion E in fig. 6.

Fig. 8 is a perspective view of the upper die in the metal casing of the electric vehicle motor of the present invention.

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like element numerals represent like elements throughout.

Referring to fig. 1, fig. 2 and fig. 3, the electric vehicle motor metal shell forming mold 100 of the present invention includes a pouring nozzle 10, a spreader cone 20, a left side pumping mechanism 30, a right side pumping mechanism 40, an upper mold 50, a lower mold 60, a lower insert 80 and an upper insert 90. The upper die 50 and the lower die 60 are matched with each other to meet the die opening and closing requirement between the upper die 50 and the lower die 60, the lower die 60 comprises a lower die base 61 and a lower die core 62 embedded at the upper end part of the lower die base 61, the lower die core 62 is surrounded by the lower die base 61 from the lower part, the left part, the right part, the front part and the rear part, and the lower die core 62 is provided with a lower molding groove 621 penetrating through the left side, the right side and the upper side of the lower die core 62.

Referring to fig. 8, the upper mold 50 includes an upper mold base 51 and an upper mold core 52 embedded in a lower end portion of the upper mold base 51, the upper mold core 52 is surrounded by the upper mold base 51 from above, left, right, front, and rear, and upper molding grooves 521 penetrating through left, right, and lower sides of the upper mold core 52 are formed in the upper mold core 52. The left side drawing mechanism 30 is assembled on the lower die base 51, and the lower die base 51 provides a supporting function and an assembling place for the left side drawing mechanism 30; the right side draw mechanism 40 is assembled on the lower die holder 51, the lower die holder 51 provides a supporting function and an assembling place for the right side draw mechanism 40, the right side draw mechanism 40 and the left side draw mechanism 30 are aligned with each other to ensure that the two are jointed together when the die is closed, and the jointed state is shown in fig. 5. Nozzle 10 is simultaneously inserted into both the front side of upper mold core 52 and upper mold base 51 to provide a positioning action for upper mold core 52 by virtue of the introduction of nozzle 10, thereby improving the ease of assembly of both nozzle 10 and upper mold core 52 on upper mold base 51. The diverter cone 20 is simultaneously inserted into both the front side of the lower mold core 62 and the lower mold base 61, so that the lower mold core 62 can be positioned by introducing the diverter cone 20, and the assembly convenience of the diverter cone 20 and the lower mold core 62 on the lower mold base 61 is improved.

Referring to fig. 5 again, after the mold assembly, the upper molding groove 521 and the lower molding groove 621 together enclose the molding cavity 70, the left-side pumping mechanism 30 extends into the molding cavity 70 from the left side of the molding cavity 70, the right-side pumping mechanism 40 extends into the molding cavity 70 from the right side of the molding cavity 70, and the skimmer cone 20 extends into the nozzle 10. The lower insert block 80 is assembled on the lower die holder 61 and located near the front side of the lower die core 62, so that the lower insert block 80 and the lower die holder 61 are fixed together, the middle part of the upper end part of the lower insert block 80 is provided with a recessed through groove 81 penetrating through the front side, the rear side and the upper side along the front-rear direction of the lower die holder 61 and a plurality of strip-shaped lower teeth 82 arranged at intervals along the front-rear direction of the lower die holder 61, the strip-shaped lower teeth 82 extend along the left-right direction of the lower die holder 61, and the recessed through groove 81 enables the left end and the right end of the strip-shaped lower teeth 82 to be arranged high and low in the middle, and the state is shown in an enlarged diagram on the right side in fig. 3. The upper insert 90 is assembled to the upper mold base 51 so that the upper insert 90 and the upper mold base 51 are fixed together, the upper insert 90 is located beside the front side of the upper mold core 52, the lower end portion of the upper insert 90 is provided with a plurality of strip-shaped upper teeth 91 matched with the strip-shaped lower teeth 81, the strip-shaped upper teeth 91 are engaged with the strip-shaped lower teeth 81 when the mold is closed, as shown in fig. 7, since the strip-shaped upper teeth 91 and the strip-shaped lower teeth 81 are arranged such that the left and right ends of the strip-shaped lower teeth 82 are high and the middle is low due to the recessed through grooves 81, the strip-shaped upper teeth 91 and the strip-shaped lower teeth 81 which are engaged with each other do not block the recessed through grooves 81, gas can be discharged outwards along the recessed through grooves 81, and the lower mold core 62 is further provided with a middle passage 622 communicating the lower molding grooves 621 and the recessed through grooves 81, as shown in fig. 3 or fig. 7. More specifically, the following:

as shown in fig. 2 and 4, the upper and lower guide posts 54 protruding downward from the upper die holder 51 are fixed at four corners of the upper die holder 51, the upper and lower guide sleeves 63 matching with the upper and lower guide posts 54 are fixed at four corners of the lower die holder 61, and the upper and lower guide posts 54 are slidably inserted into the upper and lower guide sleeves 63, so as to improve the smoothness of opening and closing the upper die 50 and the lower die 60 by the cooperation of the upper and lower guide posts 54 and the upper and lower guide sleeves 63; and the cooperation of the upper strip teeth 91 and the lower strip teeth 81 effectively restricts the front and back directions between the upper and lower guide posts 54 and the upper and lower guide sleeves 63. Specifically, in fig. 3 and 8, two lower insert blocks 80 are aligned in tandem, and each lower insert block 80 corresponds to one upper insert block 90 to improve the exhaust capacity and the front-back constraint capacity, and of course, the number of the lower insert blocks 80 and the number of the upper insert blocks 90 may be other according to actual needs, so that the invention is not limited thereto.

As shown in fig. 3, an air guide channel 623 is opened at the rear side of the lower mold core 62 and is arranged opposite to the spreader 20, and the air guide channel 623 is communicated with the lower molding groove 621 to increase the air exhaust effect by means of the air guide channel 623. Specifically, in fig. 3, the lower mold core 62 is provided with a main runner 624 for communicating the sprue 20 and the lower molding groove 621, in fig. 8, the upper mold core 52 is provided with an auxiliary runner 522 matched with the main runner 624, and the auxiliary runner 522 is communicated with the upper molding groove 521, so that by means of the matching of the auxiliary runner 522 and the main runner 624, the material flowing into the main runner 624 can be divided into the auxiliary runner 522 and flows from the auxiliary runner 522 to the upper molding groove 521, thereby improving the reliability of material flow. For example, in fig. 3 and 8, the upper molding groove 521 and the lower molding groove 621 are each a semicircular groove to match the outer contour of the motor metal housing 200, but not limited thereto.

As shown in fig. 5, the left pulling mechanism 30 includes a left slider 31 and a left core 32. The left slider 31 is arranged on the lower die base 61 in a sliding manner along the left and right directions of the lower die base 61, so that the left slider 31 can slide left and right on the lower die base 61; the left end of the left core 32 is assembled to the left slider 31 so that the left core 32 is fixed to the left slider 31 so that the left core 32 slides together with the left slider 31 and the right end of the left core 32 extends to the lower molding groove 621; the upper die holder 51 is provided with an inclined guide post 53, the inclined guide post 53 can be slidably inserted into the left side slide block 31, so that in the process of opening and closing the die, the inclined guide post 53 is used for realizing the side pumping action or the reset action of the left side pumping mechanism 30, and therefore, the left side pumping mechanism 30 does not need to be additionally provided with a power source, and the use of the power source is omitted, so that the cost is saved.

As shown in fig. 2 to 5, the right drawing mechanism 40 includes a linear actuator 41, a right slider 42, and a right core 43. The linear driver 41 is positioned outside the right side of the lower die holder 61, the linear driver 41 is also fixedly connected with the right side wall 611 of the lower die holder 61, so that the size occupation of the linear driver 41 on the thickness of the lower die holder 61 is reduced, and the output end 411 of the linear driver 41 extends into the lower die holder 61 to meet the assembly requirement of the right slide block 42; the right end of the right side sliding block 42 is assembled and connected with the output end 411 of the linear driver 41, the linear driver 41 provides power for the left-right sliding of the right side sliding block 42, the right end of the right side core 43 is assembled at the left end of the right side sliding block 42, the right side sliding block 42 and the right side core 43 are fixed together, therefore, the right side core 43 slides together along with the right side sliding block 42, and the left end of the right side core 43 extends to the lower molding groove 621. For example, the linear actuator 41 is an air cylinder to drive the right slide 42 and the right core 43 to rapidly switch between two extreme positions, one of which is an extraction position and the other is a reset position, and of course, the linear actuator 41 may also be a hydraulic cylinder according to actual needs, so the invention is not limited thereto.

Compared with the prior art, the strip-shaped upper teeth 91 of the upper insert 90 and the strip-shaped lower teeth 81 of the lower insert 80 are engaged with each other after the mold closing, the upper mold 50 and the lower mold 60 after the mold closing are restrained in the front-back direction, the play between the upper mold 50 and the lower mold 60 after the mold closing is effectively prevented, and a condition is created for ensuring the product quality, the middle part of the upper end part of the lower insert 80 is provided with a recessed through groove 81 which penetrates through the front side, the rear side and the upper side of the lower mold base 61 in the front-back direction, the recessed through groove 81 enables the left end and the right end of the strip-shaped upper teeth 91 to be high and the middle to be low, so that the strip-shaped upper teeth 91 and the strip-shaped lower teeth 81 after the mold closing do not block the recessed through groove 81, as shown in the state of figure 7, therefore, the air remained in the molding cavity 70 after the mold closing flows to the recessed through the middle channel 622 formed by the lower mold core 62 in the molding cavity 70 in the process of injecting the material into the molding cavity 70, then, the metal shell body is discharged from the concave through groove 81 of the utility model discloses an outside the electric automobile metal shell body forming die 100, therefore, the structure that has the bubble hole in the product is prevented.

Note that the direction indicated by the arrow a in the drawing is a direction from left to right of the upper die base 51 and the lower die base 61, and the direction indicated by the arrow B in the drawing is a direction from front to back of the upper die base 51 and the lower die base 61.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims (9)

1. A metal shell forming die for an electric automobile motor comprises a pouring nozzle, a spreader cone, a left side drawing mechanism, a right side drawing mechanism, an upper die and a lower die which are matched with each other, wherein the lower die comprises a lower die holder and a lower die core embedded at the upper end part of the lower die holder, the lower die core is provided with a lower forming groove penetrating through the left side, the right side and the upper side of the lower die core, the upper die comprises an upper die holder and an upper die core embedded at the lower end part of the upper die holder, the upper die core is provided with an upper forming groove penetrating through the left side, the right side and the lower side of the upper die core, the left side drawing mechanism is assembled on the lower die holder, the right side drawing mechanism is assembled on the lower die holder and aligned with the left side drawing mechanism, the pouring nozzle is penetrated in the front side of the upper die core and the upper die holder at the same time, the spreader cone is penetrated in the front side of the lower die core and the lower die holder at the same time, after the die is assembled, the upper forming groove and the lower forming groove jointly enclose a forming cavity, the left side pumping mechanism extends into the forming cavity from the left side of the forming cavity, the right side pumping mechanism extends into the forming cavity from the right side of the forming cavity, and the spreader cone extends into the pouring nozzle, the electric automobile motor metal shell forming die is characterized by further comprising a lower embedded block which is assembled on the lower die base and positioned beside the front side of the lower die core, and an upper embedded block which is assembled on the upper die base and positioned beside the front side of the upper die core, wherein the middle part of the upper end part of the lower embedded block is provided with a recessed through groove which penetrates through the front side, the rear side and the upper side along the front-rear direction of the lower die base, and a plurality of strip-shaped lower teeth which are arranged at intervals along the front-rear direction of the lower die base, the strip-shaped lower teeth extend along the left-right direction of the lower die base, and the recessed through groove enables the left and right ends of the strip-shaped lower teeth to be arranged high and low in the middle, the lower end part of the upper embedded block is provided with a plurality of strip-shaped upper teeth matched with the strip-shaped lower teeth, the strip-shaped upper teeth are meshed with the strip-shaped lower teeth during die assembly, and the lower die core is further provided with a middle channel communicated with the lower forming groove and the sunken through groove.

2. The electric motor metal shell molding die of claim 1, wherein the lower insert is two and aligned in tandem, each corresponding to one of the upper insert.

3. The forming die for the metal shell of the motor of the electric automobile as claimed in claim 2, wherein an air guide channel arranged opposite to the spreader cone is formed in the rear side of the lower die core, and the air guide channel is communicated with the lower forming groove.

4. The forming die for the metal shell of the motor of the electric automobile as claimed in claim 1, wherein the lower die core is provided with a main runner communicating the spreader cone and the lower forming groove, the upper die core is provided with an auxiliary runner matching the main runner, and the auxiliary runner is communicated with the upper forming groove.

5. The electric vehicle motor metal shell molding die of claim 1, wherein the upper molding groove and the lower molding groove are each a semicircular groove.

6. The forming die for the metal shell of the motor of the electric automobile according to claim 1, wherein the left drawing mechanism comprises a left slider and a left core, the left slider is slidably disposed on the lower die holder in the left-right direction of the lower die holder, the left end of the left core is assembled to the left slider, the right end of the left core extends to the lower forming groove, and the upper die holder is mounted with an inclined guide post slidably inserted in the left slider.

7. The forming die for the metal shell of the motor of the electric automobile according to claim 1, wherein the right side drawing mechanism comprises a linear driver, a right side sliding block and a right side core, the linear driver is located outside the right side of the lower die holder, the linear driver is further fixedly connected with the right side wall of the lower die holder, the output end of the linear driver extends into the lower die holder, the right end of the right side sliding block is connected with the output end of the linear driver in an assembling manner, the right end of the right side core is assembled at the left end of the right side sliding block, and the left end of the right side core extends to the lower forming groove.

8. The electric vehicle motor metal shell molding die of claim 7, wherein the linear actuator is a pneumatic cylinder or a hydraulic cylinder.

9. The forming die for the metal shell of the electric motor car according to claim 1, wherein four corners of the upper die base are fixed with upper and lower guide posts protruding downward from the upper die base, four corners of the lower die base are fixed with upper and lower guide sleeves matching with the upper and lower guide posts, and the upper and lower guide posts are slidably inserted in the upper and lower guide sleeves.

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