Light alloy motor shell casting equipment

Abstract

The invention belongs to the technical field of alloy casting, and discloses light alloy motor shell casting equipment which comprises a base. Two movable assemblies; two cleaning assemblies; a mold forming assembly; a discharging assembly; a feeding assembly; a casting assembly and a locking assembly. By installing a pneumatic locking assembly, when a heat absorption block is heated, air in a vent pipe can be pressurized, the pressurized air enters a round shell and pushes a push rod to be pushed out towards the left side, the push rod with a conical head can compress the stroke of a spring and extrude a plurality of steel balls, and the steel balls are annularly clamped in a fixing ring to form a self-locking structure; when the temperature of molten metal in the mold cavity is reduced due to slight cooling, and the thrust of hot air in the round shell is smaller than the elastic acting force of the spring, the push rod moves rightwards, the steel balls are disconnected from the fixing ring, and the problems that the mold deforms due to thermal expansion, and the mold cannot be damaged are solved. And the deformation may cause the problem that a gap is generated at the mold closing position of the mold.

Description

Technical Field

[0001] The invention belongs to the technical field of alloy casting, and in particular relates to a light alloy motor housing casting device. Background Art

[0002] The motor housing is an important part of the motor, which is directly related to the quality and life of the motor. The outside needs a hard shell protection, and the internal rotor needs to dissipate heat during operation. The motor housing cast by aluminum alloy, a light alloy, is widely used because of its high strength, light weight and good heat dissipation. In the casting of the motor housing, the low-pressure casting method is usually used. After the mold is divided into two parts, the molten metal liquid enters the casting head along the riser pipe, and smoothly enters the mold cavity formed by the mold through the casting head until the molten metal liquid is filled and completely solidified, and then the connection between the molds is released, and the casting is taken out; However, when the molten metal enters the mold, since the temperature of the metal liquid is much higher than the temperature of the mold, heat will be transferred from the metal liquid to the mold, and the metal liquid will continue to rise from the bottom through the liquid surface and upward. The heat received at the bottom of the mold will be greater than that at the top, and the heat transfer will be uneven. After continuous casting, the mold will be deformed due to thermal expansion. This deformation may cause gaps in the mold closing position, which will cause the metal liquid to leak out during casting, resulting in defects in the casting, such as cold shut, inclusions, pores and other negative effects. Summary of the invention

[0003] The object of the present invention is to provide a light alloy motor housing casting device to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a light alloy motor housing casting device, comprising a base, the base comprising two support seats, the tops of the two support seats are fixedly mounted with a table, the tops of the table are fixedly mounted with two movable components, and also comprises a linkage casting mechanism, which comprises two cleaning components, the two cleaning components are fixedly mounted on the tops of the two movable components, the middle positions of the two cleaning components are fixedly mounted with a molding component, the tops of the molding components are fixedly mounted with a blanking component, the right side of the blanking component is fixedly mounted with a feeding component, and the middle position of the molding component is fixedly mounted with a casting component; A locking assembly comprises two connecting blocks, a fixing ring is fixedly installed on the front side of the left connecting block, a round shell is fixedly installed on the front side of the right connecting block, a ventilation pipe is fixedly connected to the front side of the round shell, a heat absorption block is fixedly connected to the tail end of the ventilation pipe, a push rod is movably installed inside the round shell, a spring is sleeved on the outer edge of the push rod, a plurality of steel balls are abutted on the left outer edge of the push rod, and the plurality of steel balls are movably clamped on the left side of the round shell.

[0005] Preferably, the movable component comprises a fixed block, the fixed block is fixedly mounted on the top of the table, two screw rods are fixedly mounted on the left side of the fixed block, and the outer edges of the two screw rods are movably sleeved with a supporting plate.

[0006] Preferably, the cleaning assembly includes two groups of first rails, and the two groups of first rails are fixedly installed on the top of the table, and the tops of the two groups of first rails are movably connected with movable blocks, and the tops of the two movable blocks are movably hinged with return rods, and the outer edges of the two return rods are movably hinged with cleaning tracks.

[0007] Preferably, the molding assembly includes two first brackets, two first hydraulic rods are fixedly installed at the bottom of the two first brackets, the telescopic ends of the four first hydraulic rods are fixedly connected to the mold, and the outer edge of the mold is fixedly connected to two connecting blocks and a heat absorption block.

[0008] Preferably, the unloading assembly includes two second brackets, the inner sides of the two second brackets are fixedly connected with second rails, the outer sides of the two second rails are fixedly connected with two support rods, the inner sides of the two second rails are movably connected with movable plates, a second hydraulic rod is installed through the middle position of the movable plate, and a clamp is fixedly connected to the telescopic end of the second hydraulic rod.

[0009] Preferably, the feeding assembly includes a melting box, which is fixedly installed on the right side of the table top, the bottom of the melting box is fixedly connected to a telescopic tube, the bottom of the telescopic tube is fixedly connected to a feeding pipe, the outer wall of the feeding pipe is fixedly connected to two inclined rods, and the two inclined rods are movably clamped on the inner wall of the support seat.

[0010] Preferably, the casting assembly includes a plum blossom tube, which is fixedly connected to the top of the feed pipe, the outer edge of the plum blossom tube is fixedly connected to a triangular block, three third hydraulic rods are fixedly installed on the top of the triangular block, the top of the plum blossom tube is fixedly connected to a discharge head, a plurality of guide teeth are provided inside the discharge head, a plurality of first circular holes are provided in a ring shape on the discharge head, a casting shell is movably sleeved on the outer edge of the discharge head, and a plurality of second circular holes are provided in a ring shape on the casting shell.

[0011] Preferably, the telescopic ends of the three third hydraulic rods are all fixedly connected to the bottom of the table top, and the plum blossom tube is installed through the middle position of the table top.

[0012] The beneficial effects of the present invention are as follows: 1. The present invention installs a pneumatic locking assembly. When the heat absorbing block is heated, the air in the ventilation pipe is pressurized. The pressurized air enters the round shell and pushes the push rod to the left. The push rod with a conical head compresses the stroke of the spring and squeezes out a plurality of steel balls, which are annularly clamped in the fixed ring to form a self-locking structure, further increasing the tightness of the two molds. When the metal liquid in the cavity is slightly cooled and the temperature drops, when the thrust of the hot air in the round shell is less than the elastic force of the spring, the push rod moves to the right, and the plurality of steel balls are released from the fixed ring, thereby solving the problem that the mold may be deformed due to thermal expansion, and this deformation may cause a gap in the mold clamping position.

[0013] 2. The present invention is equipped with a newly designed casting assembly. The molten metal liquid enters the plum blossom tube through the telescopic tube and the feed tube. At this time, the metal liquid will fill the discharge head on the top. After the metal liquid is guided by multiple guide teeth in the discharge head, it will be discharged through the overlapping first circular hole and the second circular hole. After the lower half of the cavity is filled with the metal liquid, the stroke of the three third hydraulic rods is shortened to push the third hydraulic rods to move upward in the casting shell. When the first circular hole overlaps with the second circular hole again, the metal liquid is discharged to fill the upper half of the cavity. The upper and lower filling and casting can be carried out in layers, thereby improving the casting quality.

[0014] 3. The present invention is equipped with movable components and cleaning components. The two supporting plates move along the screw to the position of the fixed block. At this time, the motor housing fixed by the clamp can complete the demoulding of the bottom surface. The two movable blocks move outward in the first track, and the cleaning track will be pulled through two return rods to reduce its longitudinal height, so that the cleaning track can be operated to clean the supporting plates, thereby realizing portable demoulding and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a bottom view of the overall structure of the present invention; Figure 3 It is a top view of the overall structure of the present invention; Figure 4 This is a schematic diagram of the cleaning component structure of the present invention; Figure 5 It is a schematic diagram of the structure of the molding component of the present invention; Figure 6 It is a schematic diagram of the structure of the locking assembly of the present invention; Figure 7 This is a schematic diagram of the structure of the blanking assembly of the present invention; Figure 8 It is a cross-sectional view of the casting assembly structure of the present invention; Fig. 9 A bottom view of the casting assembly structure of the present invention; Fig.10 It is a schematic diagram of the guide tooth structure of the present invention.

[0016] In the figure: 1, base; 2, movable assembly; 3, cleaning assembly; 4, mold assembly; 5, locking assembly; 6, unloading assembly; 7, feeding assembly; 8, casting assembly; 11, support seat; 12, table; 21, fixed block; 22, screw rod; 23, support plate; 31, first track; 32, movable block; 33, return rod; 34, cleaning crawler; 41, first bracket; 42, first hydraulic rod; 43, mold; 51, connecting block; 52, fixed ring; 53, round shell; 54. Ventilation pipe; 55. Heat absorption block; 56. Push rod; 57. Spring; 58. Steel ball; 61. Second bracket; 62. Second track; 63. Movable plate; 64. Support rod; 65. Second hydraulic rod; 66. Clamp; 71. Melting box; 72. Telescopic tube; 73. Feed pipe; 74. Oblique rod; 81. Plum blossom tube; 82. Triangle block; 83. Third hydraulic rod; 84. Discharging head; 85. Guide teeth; 86. First circular hole; 87. Casting shell; 88. Second circular hole. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figures 1 to 10 As shown, an embodiment of the present invention provides a light alloy motor housing casting device, including a base 1, the base 1 includes two support seats 11, a table 12 is fixedly installed on the top of the two support seats 11, two movable components 2 are fixedly installed on the top of the table 12, and a linkage casting mechanism includes two cleaning components 3, the two cleaning components 3 are fixedly installed on the top of the two movable components 2, a mold component 4 is fixedly installed in the middle of the two cleaning components 3, a blanking component 6 is fixedly installed on the top of the mold component 4, a feeding component 7 is fixedly installed on the right side of the blanking component 6, and a casting component 8 is fixedly installed in the middle of the mold component 4; The locking assembly 5 includes two connecting blocks 51. A fixing ring 52 is fixedly installed on the front side of the left connecting block 51. A round shell 53 is fixedly installed on the front side of the right connecting block 51. A vent pipe 54 is fixedly connected to the front side of the round shell 53. A heat absorbing block 55 is fixedly connected to the tail end of the vent pipe 54. A push rod 56 is movably installed inside the round shell 53. A spring 57 is sleeved on the outer edge of the push rod 56. A plurality of steel balls 58 are abutted on the left outer edge of the push rod 56. The plurality of steel balls 58 are all movably clamped on the left side of the round shell 53. When the heat absorbing block 55 is heated, the air in the vent pipe 54 will be pressurized. The pressurized air enters the round shell 53 and pushes the push rod 56 to the left. The push rod 56 with a conical head will compress the stroke of the spring 57 and squeeze out multiple steel balls 58, which are annularly clamped in the fixing ring 52 to form a self-locking structure, further increasing the merging tightness between the two molds 43. When the metal liquid in the cavity cools down slightly and the temperature drops, the thrust of the hot air in the round shell 53 is less than the elastic force of the spring 57, and the push rod 56 moves to the right, and the multiple steel balls 58 are disconnected from the fixing ring 52, which solves the problem that the mold will be deformed due to thermal expansion, and this deformation may cause a gap in the mold clamping position. The movable assembly 2 includes a fixed block 21, which is fixedly mounted on the top of the table 12. Two screw rods 22 are fixedly mounted on the left side of the fixed block 21, and a supporting plate 23 is movably sleeved on the outer edges of the two screw rods 22. The two symmetrically mounted support plates 23 move toward the middle along the screw rod 22 and merge, and can form a cavity between the two molds 43 and the casting shell 87. After the casting is completed, the two support plates 23 move along the screw rod 22 to the position of the fixed block 21. At this time, the motor shell fixed by the clamping hand 66 can complete the demoulding of the bottom surface; The cleaning assembly 3 includes two sets of first rails 31, which are fixedly mounted on the top of the table 12. The tops of the two sets of first rails 31 are movably connected with movable blocks 32. The tops of the two movable blocks 32 are movably hinged with return rods 33, and the outer edges of the two return rods 33 are movably hinged with cleaning tracks 34. The two movable blocks 32 move outwards in the first track 31, and pull the cleaning track 34 through the two return rods 33 to reduce its longitudinal height, so that the cleaning track 34 can run to clean the support plate 23. After cleaning, the two movable blocks 32 move inwards along the first track 31, and lift the cleaning track 34 again through the return rods 33, so that the cleaned support plate 23 can move again. The mold assembly 4 includes two first brackets 41, two first hydraulic rods 42 are fixedly installed at the bottom of the two first brackets 41, and the telescopic ends of the four first hydraulic rods 42 are fixedly connected to the mold 43, and the outer edge of the mold 43 is fixedly connected to the two connecting blocks 51 and the heat absorbing block 55; By increasing the stroke of the four first hydraulic rods 42, the two molds 43 can be pushed and merged, and the two symmetrically installed support plates 23 move toward the middle along the screw rod 22 and merge, and a cavity can be formed between the two molds 43 and the casting shell 87; The blanking assembly 6 includes two second brackets 61, the inner sides of the two second brackets 61 are fixedly connected with second rails 62, the outer sides of the two second rails 62 are fixedly connected with two support rods 64, the inner sides of the two second rails 62 are movably connected with movable plates 63, the middle part of the movable plate 63 is penetrated and installed with a second hydraulic rod 65, and the telescopic end of the second hydraulic rod 65 is fixedly connected with a clamp 66; By moving the movable plate 63 to the top of the motor housing and increasing the stroke of the second hydraulic rod 65, the clamping hand 66 can clamp the outside of the motor housing. After the clamping hand 66 clamps, the two supporting plates 23 are moved along the screw rod 22 to the position of the fixed block 21. At this time, the motor housing fixed by the clamping hand 66 can complete the demoulding of the bottom surface; The bottom of the melting box 71 is fixedly connected with a telescopic tube 72, the bottom of the telescopic tube 72 is fixedly connected with a feed pipe 73, the outer wall of the feed pipe 73 is fixedly connected with two inclined rods 74, and the two inclined rods 74 are movably connected to the inner wall of the support seat 11; The alloy raw material is heated and melted by the melting box 71, and the molten metal liquid enters the plum blossom tube 81 after passing through the telescopic tube 72 and the feed tube 73. When the discharge head 84 moves, the plum blossom tube 81, the feed tube 73, and the telescopic tube 72 will be driven by the third hydraulic rod 83 to move upward by a certain distance, and the two feed tubes 73 will move in the support seat 11 to play a supporting and limiting role. The casting assembly 8 includes a plum blossom tube 81, which is fixedly connected to the top of the feed pipe 73, and a triangular block 82 is fixedly connected to the outer edge of the plum blossom tube 81. Three third hydraulic rods 83 are fixedly installed on the top of the triangular block 82. A discharge head 84 is fixedly connected to the top of the plum blossom tube 81, and a plurality of guide teeth 85 are provided inside the discharge head 84. The discharge head 84 is provided with a plurality of first circular holes 86 in an annular shape. A casting shell 87 is movably sleeved on the outer edge of the discharge head 84, and a plurality of second circular holes 88 are provided in an annular shape on the casting shell 87. The telescopic ends of the three third hydraulic rods 83 are all fixedly connected to the bottom of the table 12, and the plum blossom tube 81 is installed through the middle of the table 12. The molten metal passes through the telescopic tube 72 and the feed tube 73 and enters the plum blossom tube 81. At this time, the molten metal will fill the discharge head 84 on the top. After being guided by multiple guide teeth 85 in the discharge head 84, the molten metal is discharged through the overlapping first circular hole 86 and second circular hole 88. After the lower half of the cavity is filled with the molten metal, the stroke of the three third hydraulic rods 83 is shortened to push the third hydraulic rod 83 to move upward in the casting shell 87. When the first circular hole 86 overlaps with the second circular hole 88 again, the molten metal is discharged to fill the upper half of the cavity.

[0019] Working principle: When the present invention is used to cast the motor housing, the stroke of the four first hydraulic rods 42 is first increased, and the two molds 43 are pushed together and then stopped. During the merging process, the round shell 53 is pushed forward and inserted into the fixing ring 52, and the two symmetrically installed supporting plates 23 are moved toward the middle along the screw rod 22 and merged, forming a cavity between the two molds 43 and the casting shell 87; Then, the raw materials are prepared. The alloy raw materials are heated and melted through the melting box 71. The molten metal liquid passes through the telescopic tube 72 and the feed pipe 73 and enters the plum blossom tube 81. At this time, the metal liquid will fill the discharge head 84 at the top. After the molten metal is guided by a plurality of guide teeth 85 in the discharge head 84, it is discharged through the overlapping first circular hole 86 and second circular hole 88. After the lower half of the cavity is filled with the molten metal, the strokes of the three third hydraulic rods 83 are shortened, and the third hydraulic rods 83 are pushed to move upward in the casting shell 87. When the first circular hole 86 and the second circular hole 88 overlap again, the molten metal is discharged to fill the upper half of the cavity. When the discharge head 84 moves, the plum blossom tube 81, the feed tube 73, and the telescopic tube 72 will be moved upward by a certain distance under the drive of the third hydraulic rod 83, and the two feed tubes 73 will move in the support seat 11 to play a supporting and limiting role; When the molten metal in the cavity is filled, the heat will be transferred to the outer edge of the mold 43. When the heat absorbing block 55 is heated, the air in the vent pipe 54 will be pressurized. The pressurized air enters the round shell 53 and pushes the push rod 56 to the left. The push rod 56 with a conical head will compress the stroke of the spring 57 and squeeze out a plurality of steel balls 58, which are annularly clamped in the fixing ring 52 to form a self-locking structure, further increasing the tightness of the two molds 43. When the molten metal in the cavity is slightly cooled and the temperature drops, the thrust of the hot air in the round shell 53 is less than the elastic force of the spring 57, and the push rod 56 moves to the right, and the plurality of steel balls 58 are disconnected from the fixing ring 52. At this time, the strokes of the four first hydraulic rods 42 are shortened to expose the motor housing with the cast inside, and then the movable plate 63 is moved to the top of the motor housing, and the stroke of the second hydraulic rod 65 is increased, so that the clamping hand 66 can clamp the outside of the motor housing. After the clamping hand 66 clamps, the two supporting plates 23 are moved along the screw rod 22 to the position of the fixed block 21. At this time, the motor housing fixed by the clamping hand 66 will complete the demoulding of the bottom surface, and then the motor housing can be moved away by the movable plate 63 to complete the unloading; When the two supporting plates 23 move to the position of the cleaning component 3, they stop and start the movable blocks 32. The two movable blocks 32 move outward in the first track 31 and pull the cleaning tracks 34 through the two return rods 33 to lower their longitudinal height, so that the cleaning tracks 34 can operate to clean the supporting plates 23. After cleaning, the two movable blocks 32 move inward along the first track 31 and lift the cleaning tracks 34 again through the return rods 33, so that the cleaned supporting plates 23 can move again, and the work process ends here.

[0020] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A light alloy motor housing casting device, comprising a base (1), characterized in that: The base (1) comprises two support seats (11), a table top (12) is fixedly mounted on the top of the two support seats (11), two movable components (2) are fixedly mounted on the top of the table top (12), and further comprises: A linkage casting mechanism, comprising two cleaning assemblies (3), the two cleaning assemblies (3) being fixedly mounted on the tops of the two movable assemblies (2), a molding assembly (4) being fixedly mounted in the middle of the two cleaning assemblies (3), a material discharge assembly (6) being fixedly mounted on the top of the molding assembly (4), a material feed assembly (7) being fixedly mounted on the right side of the material discharge assembly (6), and a casting assembly (8) being fixedly mounted in the middle of the molding assembly (4); A locking assembly (5), the locking assembly (5) comprising two connecting blocks (51), a fixing ring (52) being fixedly mounted on the front side of the left connecting block (51), a round shell (53) being fixedly mounted on the front side of the right connecting block (51), a vent pipe (54) being fixedly connected to the front side of the round shell (53), a heat absorbing block (55) being fixedly connected to the rear end of the vent pipe (54), a push rod (56) being movably mounted inside the round shell (53), a spring (57) being sleeved on the outer edge of the push rod (56), a plurality of steel balls (58) being abutted against the left outer edge of the push rod (56), and the plurality of steel balls (58) being movably clamped on the left side of the round shell (53).

2. A light alloy motor housing casting equipment according to claim 1, characterized in that: The movable assembly (2) comprises a fixed block (21), the fixed block (21) being fixedly mounted on the top of the tabletop (12), two screw rods (22) being fixedly mounted on the left side of the fixed block (21), and a supporting plate (23) being movably sleeved on the outer edges of the two screw rods (22).

3. A light alloy motor housing casting equipment according to claim 2, characterized in that: The cleaning assembly (3) comprises two groups of first rails (31), the two groups of first rails (31) are fixedly mounted on the top of the table (12), the tops of the two groups of first rails (31) are movably connected to movable blocks (32), the tops of the two movable blocks (32) are movably hinged to return rods (33), and the outer edges of the two return rods (33) are movably hinged to cleaning tracks (34).

4. The light alloy motor housing casting equipment according to claim 3 is characterized in that: The mold assembly (4) comprises two first brackets (41), two first hydraulic rods (42) are fixedly mounted at the bottom of each of the two first brackets (41), the telescopic ends of the four first hydraulic rods (42) are fixedly connected to a mold (43), and the outer edge of the mold (43) is fixedly connected to two connecting blocks (51) and a heat absorbing block (55).

5. The light alloy motor housing casting equipment according to claim 4, characterized in that: The material removal assembly (6) comprises two second brackets (61), the inner sides of the two second brackets (61) are fixedly connected to second rails (62), the outer sides of the two second rails (62) are fixedly connected to two support rods (64), the inner sides of the two second rails (62) are movably connected to movable plates (63), a second hydraulic rod (65) is installed through the middle of the movable plate (63), and a gripper (66) is fixedly connected to the telescopic end of the second hydraulic rod (65).

6. The light alloy motor housing casting equipment according to claim 5, characterized in that: The feed assembly (7) comprises a melting box (71), the melting box (71) being fixedly mounted on the right side of the table top (12), the bottom of the melting box (71) being fixedly connected to a telescopic tube (72), the bottom of the telescopic tube (72) being fixedly connected to a feed pipe (73), the outer wall of the feed pipe (73) being fixedly connected to two inclined rods (74), the two inclined rods (74) being movably clamped to the inner wall of the support seat (11).

7. A light alloy motor housing casting equipment according to claim 6, characterized in that: The casting assembly (8) comprises a plum blossom tube (81), the plum blossom tube (81) is fixedly connected to the top of the feed pipe (73), the outer edge of the plum blossom tube (81) is fixedly connected to a triangular block (82), the top of the triangular block (82) is fixedly mounted with three third hydraulic rods (83), the top of the plum blossom tube (81) is fixedly connected to a discharge head (84), the inside of the discharge head (84) is provided with a plurality of guide teeth (85), the discharge head (84) is annularly provided with a plurality of first circular holes (86), the outer edge of the discharge head (84) is movably sleeved with a casting shell (87), and the casting shell (87) is annularly provided with a plurality of second circular holes (88).

8. The light alloy motor housing casting equipment according to claim 7, characterized in that: The telescopic ends of the three third hydraulic rods (83) are all fixedly connected to the bottom of the table top (12), and the plum blossom tube (81) is installed through the middle of the table top (12).

Images