A casting device for a support base for aluminum alloy high-speed motor testing

Abstract

The present invention discloses a support base casting device for testing an aluminum alloy high-speed motor, which relates to the technical field of base casting. It comprises a machine body, a mounting frame is fixed on the upper surface of the machine body, an upper mold is connected to the mounting frame, a lower mold is installed on the machine body, a movable block is elastically and rotatably installed on the bottom of the lower mold, a top block is installed on the internal limiting sliding of the lower mold, a moving block is nested inside the groove at the lower end of the top block, trapezoidal limiting blocks are installed on both sides of the upper end of the moving block, an electric push rod is fixedly connected to the lower end of the moving block and the body, a vibration assembly is provided in the moving block and the fixed block, and the fixed block is installed in the body. By the up and down movement of the moving block, bidirectional vibration from inside to outside and from outside to inside is realized. During the liquid injection process, the vibration from inside to outside makes the liquid quickly and evenly distributed, and the vibration from outside to inside improves the separation effect from the side wall of the mold cavity, reducing the equipment processing and operation costs.

Description

Technical Field

[0001] The invention relates to the technical field of base casting, in particular to a support base casting device for testing an aluminum alloy high-speed motor. Background Art

[0002] In motor testing, the support base is the core infrastructure of the entire test bench. Cast iron casting is a key production method for this support base. Casting involves melting metal into a liquid that meets specific requirements and pouring it into a mold. After cooling, solidification, and finishing, the resulting casting has the desired shape, size, and performance. The graphite flake structure within the cast iron effectively absorbs and dissipates vibration energy, resulting in very high internal damping. The cast iron base significantly reduces the test system's own resonance and background noise, providing a cleaner vibration signal and more accurate noise measurement results. Furthermore, cast iron inherently possesses high stiffness and strength. Through appropriate structural design (such as a box-shaped structure and reinforcing ribs), the cast base achieves very high overall stiffness, effectively resisting the forces and torques generated by motor operation, reducing deformation, and ensuring the stability of the test bench.

[0003] However, when most existing casting devices are in use, as the solute is continuously injected into the mold through the casting port, the solute needs to continuously move away from the casting port. As the solute continues to move, its kinetic energy decreases. When the solute moves to both sides, due to the reduction in kinetic energy, the solute may be unevenly distributed on both sides, resulting in insufficient rigidity of the base after demolding, which is prone to damage during testing and reduces the service life.

[0004] In response to the above problems, it is urgent to carry out innovative design based on the original one. Summary of the Invention

[0005] The purpose of the present invention is to provide a support base casting device for aluminum alloy high-speed motor testing to solve the problems raised by the above-mentioned background technology. The technical solution of the present invention addresses the technical problem that the existing technical solution is too single and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a support base casting device for testing an aluminum alloy high-speed motor, comprising a machine body, a mounting frame fixed to the upper surface of the machine body, an upper mold connected to the mounting frame, a lower mold installed on the machine body, a movable block elastically rotatably installed at the bottom of the lower mold, a top block is installed on the internal limiting sliding of the lower mold, a movable block is nested in the groove at the lower end of the top block, trapezoidal limiting blocks are installed on both sides of the upper end of the movable block, an electric push rod is fixedly connected to the lower end of the movable block and a vibration component is provided in the movable block and the fixed block, the fixed block is installed in the machine body, and the left and right sides of the fixed block are connected to the movable frame through an oil transmission component, a cooling fan is rotatably installed on the movable frame through a torsion spring, and abutment blocks are provided on the movement trajectory of the cooling fan, and the abutment blocks are equidistantly arranged in the side grooves of the machine body.

[0007] Preferably, the movable block has an inverted "concave" structure when viewed from the side, and two groups of movable blocks are arranged symmetrically about the top block at the bottom of the lower mold, and the lower end of the movable block is set to a curved surface.

[0008] Preferably, the vibration assembly includes a tooth block symmetrically mounted on the moving block, the outer side of the tooth block is meshed with a rotating gear, the rotating gear is fixedly mounted on a connecting column, and the connecting column is rotatably mounted on the inner wall of the fixed block.

[0009] Preferably, the rear end of the connecting column is rotatably connected to a transmission belt, the upper end of the transmission belt is connected to a belt column, the front and rear ends of the belt column are connected to abutment plate 1, abutment plate 2 is rotatably connected to abutment plate 1, and a sliding block is rotatably installed on the inner side surface of abutment plate 2.

[0010] Preferably, the belt column is installed on the fixed block, and two groups of abutment plates 1 and 2 are symmetrically arranged with respect to the fixed block, and the connection between the abutment plates 1 and 2 corresponds to the groove position of the movable block.

[0011] Preferably, the oil assembly includes an oil cylinder 1, which is symmetrically installed on the upper end of the fixed block. The oil cylinder 1 is connected to the oil cylinder 2 through a delivery hose. The oil cylinder 2 is installed inside the machine body. A piston rod is slidably installed in the oil cylinder 2 through a spring. A ratchet rack is fixedly installed on the output end of the oil cylinder 1, and a ratchet gear is engaged on the moving path of the ratchet rack.

[0012] Preferably, a sliding block is slidably mounted on the first oil cylinder, the second oil cylinder is arranged at the front end of the electric push rod, and the piston rod is located on the displacement path of the fixed protrusion on the moving block.

[0013] Preferably, the ratchet gear is rotatably mounted inside the machine body through a rod, the ratchet gear is connected to a reciprocating screw rod through a transmission belt, the reciprocating screw rod is threadedly connected to the movable frame, and the reciprocating screw rod is symmetrically arranged in the side groove of the machine body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention provides a movable block within a groove formed at the bottom of the lower mold. During the injection process between the upper and lower molds, a vibrating assembly continuously contacts and impacts the movable block, allowing the movable block to continuously impact the interior of the lower mold along the injection direction. This provides an external driving force for the solute moving toward both sides, further increasing the solute's flow rate toward both sides. The continuous impact of the movable block also makes the internal solute distribution more uniform, resulting in a better appearance and longer service life for the mold.

[0016] This invention connects the cooling fan with the oil transmission component, so that the cooling fan can move along the predetermined track groove direction during the cooling stage after the liquid injection is completed, and continuously contacts the abutment blocks set at equal distances during the movement, so that the cooling fan continuously deflects with the connecting rod on the movable frame as the center during the movement, thereby making the heat dissipation inside the mold more uniform. At the same time, during the cooling process, the movable block is pushed in the opposite direction by the vibration component, so that the movable block hits the lower mold in the opposite direction, further improving the demoulding effect of the lower mold. During the whole process, bidirectional vibration from inside to outside and from outside to inside can be achieved through the up and down movement of the movable block. During the liquid injection process, the vibration from inside to outside facilitates the rapid and uniform distribution of the liquid, and the vibration from outside to inside facilitates the improvement of the separation effect from the side wall of the mold cavity. The liquid uniform distribution and demoulding vibration are completed uniformly by the vibration component, the internal space utilization rate is high, the molding effect is improved, and the equipment processing and operation costs are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the bottom structure of the lower mold of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the top block of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the machine body of the present invention;

[0021] Figure 5 For the present invention Figure 4 A in the middle is an enlarged structural diagram;

[0022] Figure 6This is a schematic diagram of the rear perspective structure of the fixing block of the present invention;

[0023] Figure 7 This is a schematic diagram of the internal structure of the fixed block of the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of the rotating gear and the connecting column of the present invention;

[0025] Figure 9 This is a schematic diagram of the enlarged structure of the side wall of the machine body of the present invention;

[0026] Figure 10 This is a schematic diagram of the internal structure of the oil cylinder 2 of the present invention;

[0027] Figure 11 It is a schematic diagram of the three-dimensional structure of the oil cylinder of the present invention.

[0028] In the figure: 1. Machine body; 2. Mounting frame; 3. Upper mold; 4. Lower mold; 5. Movable block; 6. Top block; 7. Moving block; 71. Gear block; 8. Trapezoidal limit block; 9. Electric push rod; 10. Fixed block; 11. Movable frame; 12. Cooling fan; 13. Abutment block; 14. Rotating gear; 15. Connecting column; 16. Transmission belt; 17. Belt column; 18. Abutment plate 1; 19. Abutment plate 2; 20. Sliding block; 21. Hydraulic cylinder 1; 22. Hydraulic cylinder 2; 2201. Piston rod; 23. Ratchet rack; 24. Ratchet gear; 25. Reciprocating screw. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1-11The present invention provides a technical solution: a supporting base casting device for testing an aluminum alloy high-speed motor, comprising a body 1, a mounting frame 2 is fixed on the upper surface of the body 1, an upper mold 3 is connected to the mounting frame 2, a lower mold 4 is installed on the body 1, a movable block 5 is elastically rotatably installed at the bottom of the lower mold 4, a top block 6 is installed internally for limiting sliding and mounting the lower mold 4, a moving block 7 is nested in the groove at the lower end of the top block 6, trapezoidal limiting blocks 8 are installed on both sides of the upper end of the moving block 7, an electric push rod 9 is fixedly connected to the lower end of the moving block 7 and a vibration component is provided in the moving block 7 and the fixed block 10, the fixed block 10 is installed in the body 1, and the left and right sides of the fixed block 10 are connected to the movable frame 11 through an oil transmission component, a cooling fan 12 is rotatably installed on the movable frame 11 through a torsion spring, and abutment blocks 13 are provided on the movement trajectory of the cooling fan 12, and the abutment blocks 13 are equidistantly arranged in the side grooves of the body 1.

[0031] As an embodiment of the present invention, the movable block 5 has an inverted "concave" structure when viewed from the side. Two groups of movable blocks 5 are symmetrically arranged at the bottom of the lower mold 4 about the top block 6, and the lower end of the movable block 5 is set to an arc surface.

[0032] As an embodiment of the present invention, the vibration assembly includes a tooth block 71 symmetrically installed on the movable block 7, the outer side of the tooth block 71 is meshed with a rotating gear 14, the rotating gear 14 is fixedly installed on the connecting column 15, and the connecting column 15 is rotatably installed on the inner wall of the fixed block 10.

[0033] As an embodiment of the present invention, the rear end of the connecting column 15 is rotatably connected to a transmission belt 16, the upper end of the transmission belt 16 is connected to a belt column 17, the front and rear ends of the belt column 17 are connected to abutment plate 18, abutment plate 18 is rotatably connected to abutment plate 2 19, and a sliding block 20 is rotatably installed on the inner side surface of abutment plate 2 19.

[0034] As an embodiment of the present invention, the belt column 17 is installed through the fixed block 10, and two groups of abutment plates 18 and 19 are symmetrically arranged in the front and back of the fixed block 10, and the connection between abutment plates 18 and 19 corresponds to the groove position of the movable block 5.

[0035] During the injection process, as the moving block 7 continuously moves downward and engages with the rotating gear 14 through the tooth blocks 71 on both sides, the rotating gear 14 drives the abutment plate 1 18 to continuously rotate through the connecting column 15, the transmission belt 16 and the belt column 17. At the same time, the abutment plate 18 drives the abutment plate 2 19 to deflect synchronously, and in the process of rotation, continuously abuts and impacts the movable block 5 provided at the bottom of the lower mold 4, causing the movable block 5 to deflect and impact the lower mold 4 once, thereby providing power for the flow of the internal solution and allowing the solute to circulate more rapidly and evenly.

[0036] As an embodiment of the present invention, the oil assembly includes an oil cylinder 21, which is symmetrically installed on the upper end of the fixed block 10. The oil cylinder 21 is connected to the oil cylinder 2 22 through a delivery hose. The oil cylinder 2 22 is installed inside the body 1. A piston rod 2201 is slidably installed in the oil cylinder 2 22 through a spring. A ratchet rack 23 is fixedly installed at the output end of the oil cylinder 21, and a ratchet gear 24 is engaged on the moving path of the ratchet rack 23.

[0037] As an embodiment of the present invention, a sliding block 20 is slidably mounted on the hydraulic cylinder 1 21 , the hydraulic cylinder 2 22 is arranged at the front end of the electric push rod 9 , and the piston rod 2201 is located on the displacement path of the fixed protrusion on the moving block 7 .

[0038] As an embodiment of the present invention, the ratchet gear 24 is rotatably installed inside the body 1 through a rod. The ratchet gear 24 is connected to a reciprocating screw rod 25 through a transmission belt. The reciprocating screw rod 25 is threadedly connected to the movable frame 11. The reciprocating screw rod 25 is symmetrically arranged in the side groove of the body 1 front and back.

[0039] During the demoulding process, as the movable block 7 rises, the transmission assembly will begin to deflect in the opposite direction, thereby providing an opposite impact force to the movable block 5, so that the force of the movable block 5 is used for vibration demoulding, which facilitates the ejection of the top plate. At the same time, as the movable block 7 rises, it drives the oil transmission assembly to retract, so that the cooling fan 12 moves on the reciprocating screw 25. At the same time, the cooling fan 12 is constantly in contact with the abutment block 13 during the movement. The cooling fan 12 with its outer frame squeezed is deflected on the movable frame 11, so that the cooling fan 12 can dissipate heat to the lower mold 4 more comprehensively.

[0040] Working principle: When using the machine body 1, first the lower mold 4 is placed into the groove opened in the machine body 1, and then the upper mold 3 is pressed down to close the mold with the lower mold 4. When the mold closing is completed, the liquid injection is started. When the liquid injection is in progress, the electric push rod 9 set inside the machine body 1 is started, and the electric push rod 9 will pull the moving block 7 downward. In the process of the moving block 7 moving downward, the tooth blocks 71 on both sides engage with the rotating gear 14 to drive the rotating gear 14 to rotate. The rotating gear 14 drives the belt column 17 set above through the connecting column 15 and the transmission belt 16 to start rotating synchronously. The rotating belt column 17 drives the abutment plate 1 18 set at the front and rear ends to offset synchronously, and the abutment plate 18 drives the abutment plate 2 19 synchronously. It rotates clockwise and abuts and impacts the movable block 5 provided at the bottom of the lower mold 4, so that the symmetrically arranged movable block 5 is continuously deflected in the direction away from the liquid injection port under the action of the abutment plate 1 18 and the abutment plate 2 19. The deflected movable block 5 impacts the inner wall of the lower mold 4, providing an impact force away from the liquid injection direction to the solute inside the mold, thereby increasing the overall speed of the solute circulation inside the device and making the internal solute distribution more uniform. At the same time, the convex block on the surface of the downward moving block 7 squeezes the lower end oil cylinder 2 22, so that the oil inside it flows into the oil cylinder 1 21 through the infusion hose, so that the oil cylinder 1 21 can push the ratchet rack 23 to move into the side wall cavity of the machine body 1;

[0041] Furthermore, during the demoulding stage after the injection is completed, the moving block 7 moves upward under the action of the electric push rod 9. At this time, the moving block 7 will drive the vibration assembly to rotate counterclockwise through the tooth block 71, thereby causing the abutment plate 1 18 and the abutment plate 2 19 to drive the movable block 5 to collide with the center of the lower mold 4, so that the cast base can be better separated from the lower mold 4. At the same time, as the moving block 7 moves upward, the moving block 7 pushes the ejector block 6 upward through the trapezoidal limit block 8 to eject the cast model out of the lower mold 4 for the convenience of the staff;

[0042] At the same time, when the moving block 7 moves upward, the piston rod 2201 of the oil cylinder 22 moves upward synchronously under the action of the spring, and the oil inside the oil cylinder 1 21 is drawn back, so that the oil cylinder 1 21 pulls the ratchet rack 23 to move, and the ratchet rack 23 engages with the ratchet gear 24 during the recovery process. The rotating ratchet gear 24 drives the reciprocating screw 25 to rotate synchronously through the transmission belt, driving the movable frame 11 threadedly connected to the reciprocating screw 25 to move, and the movable frame 11 drives the cooling fan 12 to move synchronously, and during the movement, the tail end outer frame of the cooling fan 12 continuously contacts the abutment block 13, causing the cooling fan 12 to deflect, thereby improving the overall heat dissipation effect of the device.

[0043] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A casting device for a support base for testing an aluminum alloy high-speed motor, comprising a body (1), characterized in that: The upper surface of the machine body (1) is fixed with a mounting frame (2), an upper mold (3) is connected to the mounting frame (2), a lower mold (4) is mounted on the machine body (1), a movable block (5) is elastically rotatably mounted on the bottom of the lower mold (4), a top block (6) is mounted internally on the lower mold (4), a moving block (7) is nested in the groove at the lower end of the top block (6), trapezoidal limiting blocks (8) are mounted on both sides of the upper end of the moving block (7), and an electric push rod (9) is fixedly connected to the lower end of the moving block (7) and the machine body (1). The movable block (7) and the fixed block (10) are provided with a vibration assembly. The fixed block (10) is installed in the machine body (1). The left and right sides of the fixed block (10) are connected to the movable frame (11) through the oil transmission assembly. The movable frame (11) is installed with a cooling fan (12) through a torsion spring. Abutment blocks (13) are provided on the movement track of the cooling fan (12). The abutment blocks (13) are equidistantly provided in the side groove of the machine body (1). The movable block (5) is an inverted "concave" structure when viewed from the side. The movable block (5) is located in the lower mold. The bottom of the tool (4) is symmetrically provided with two groups about the top block (6). The lower end of the movable block (5) is provided with an arc surface. The vibration assembly includes a tooth block (71) symmetrically installed on the movable block (7). The outer side of the tooth block (71) is meshed with a rotating gear (14). The rotating gear (14) is fixedly installed on a connecting column (15). The connecting column (15) is rotatably installed on the inner wall of the fixed block (10). The rear end of the connecting column (15) is rotatably connected to a transmission belt (16). The upper end of the transmission belt (16) is connected to the rotating gear (14). A belt column (17) is connected, and the front and rear ends of the belt column (17) are connected to abutment plate 1 (18), and abutment plate 2 (19) is rotatably connected to the abutment plate 1 (18), and a sliding block (20) is rotatably installed on the inner side surface of the abutment plate 2 (19). The belt column (17) is installed on the fixed block (10), and the abutment plate 1 (18) and the abutment plate 2 (19) are symmetrically arranged in two groups with respect to the fixed block (10). The connection between the abutment plate 1 (18) and the abutment plate 2 (19) corresponds to the groove position of the movable block (5).

2. The aluminum alloy high-speed motor testing support base casting device according to claim 1, characterized in that: The oil transmission assembly includes an oil cylinder (21) which is symmetrically mounted on the upper end of the fixed block (10). The oil cylinder (21) is connected to an oil cylinder (22) via a delivery hose. The oil cylinder (22) is mounted inside the machine body (1). A piston rod (2201) is slidably mounted in the oil cylinder (22) via a spring. A ratchet rack (23) is fixedly mounted on the output end of the oil cylinder (21). A ratchet gear (24) is engaged on the moving path of the ratchet rack (23).

3. The aluminum alloy high-speed motor testing support base casting device according to claim 2, characterized in that: A sliding block (20) is slidably mounted on the first hydraulic cylinder (21), the second hydraulic cylinder (22) is arranged at the front end of the electric push rod (9), and the piston rod (2201) is located on the displacement path of the fixed protrusion on the moving block (7).

4. The aluminum alloy high-speed motor testing support base casting device according to claim 3, characterized in that: The ratchet gear (24) is rotatably mounted inside the machine body (1) via a rod. The ratchet gear (24) is connected to a reciprocating screw rod (25) via a transmission belt. The reciprocating screw rod (25) is threadedly connected to the movable frame (11). The reciprocating screw rod (25) is symmetrically arranged in the side groove of the machine body (1) in a front-to-back manner.

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