Copper bush centrifugal casting device

Abstract

The utility model relates to the technical field of metal casting, in particular to a copper bush centrifugal casting device which comprises a base, a casting mold is arranged on the base and comprises an upper mold base and a lower mold base, an overturning motor is fixedly installed on the upper mold base, the lower mold base is fixed to the output end of the overturning motor, a jacking push rod is fixed to the bottom of the lower mold base, and a jacking block is arranged on the jacking push rod. The output end of the jacking push rod drives an ejector pin, the casting mold is provided with a limiting ring and a gear ring, the limiting ring and the gear ring are each composed of two halves arranged on the upper mold base and the lower mold base respectively, at least two pairs of supporting rollers are rotationally installed on the base, and the supporting rollers are used for supporting the casting mold to rotate. A main motor is fixedly installed on the base, and the output end of the main motor drives a driving wheel. The casting mold is divided into the upper mold base and the lower mold base to jointly complete casting, and the copper sleeve workpiece with the complex outer wall shape can be cast in the mode that the mold is opened and then the copper sleeve workpiece is taken out.

Description

Technical Field

[0001] This utility model relates to the field of metal casting technology, specifically to a copper sleeve centrifugal casting device. Background Technology

[0002] Centrifugal casting uses centrifugal force to evenly adhere molten casting material to the surface of a mold cavity to achieve casting. This casting method is frequently used in the casting of copper sleeves.

[0003] Utility model patent CN211438029U discloses a centrifugal casting device for copper bushings, which can use a pin to demold the copper bushing workpiece after casting. However, this device still has the following drawbacks:

[0004] 1. The outer wall of the copper bushing must be smooth; otherwise, the outer wall of the copper bushing will get stuck in the cavity and cannot be demolded by ejecting it with ejector pins. This limits the casting of copper bushings with complex surface shapes, such as copper bushings with different diameters at different locations on the surface.

[0005] 2. The mold cannot be opened and is difficult to separate from other parts, making mold replacement and cavity inspection and maintenance extremely difficult;

[0006] Therefore, it is difficult to meet the needs of existing centrifugal casting of complex-shaped copper sleeves. In view of this, this application provides a centrifugal casting apparatus for copper sleeves. Utility Model Content

[0007] This utility model provides a copper sleeve centrifugal casting device to solve the problems mentioned in the background art.

[0008] This utility model is achieved through the following technical solution: a centrifugal casting device for copper bushings, comprising a base, and a casting mold for casting copper bushing workpieces is provided on the base. The casting mold includes an upper mold base and a lower mold base, and a flipping motor is fixedly installed on the upper mold base. The lower mold base is fixed to the output end of the flipping motor, and the upper mold base is flipped and engaged with the lower mold base by the flipping motor. A lifting push rod is fixed to the bottom of the lower mold base, and the output end of the lifting push rod drives an ejector pin for ejecting the copper bushing workpiece from the casting mold. A limit ring and a gear ring are provided on the casting mold, and both the limit ring and the gear ring are composed of two halves respectively provided on the upper mold base and the lower mold base. At least two pairs of support rollers are rotatably installed on the base and locked between the casting mold and the limit ring, and the support rollers are used to support the rotation of the casting mold. A main motor is fixedly installed on the base, and the output end of the main motor drives a drive wheel that meshes with the gear ring. The main motor is used to drive the casting mold to rotate.

[0009] Optionally, a controller is installed on the base, and the controller is electrically connected to the tilting motor, the lifting push rod and the main motor respectively.

[0010] Optionally, a pouring gate is formed between the upper mold base and the lower mold base for pouring into the cavity of the casting mold, and an adjusting push rod is fixedly installed on the base. The output end of the adjusting push rod is fixed with a pouring pipe and used to adjust the position of the pouring pipe. The pouring pipe is used to insert into the pouring gate to provide molten pouring material to the cavity of the casting mold. The adjusting push rod is electrically connected to the controller.

[0011] Optionally, a circular mating seat concentric with the casting mold is fixedly installed on the lower mold base, and an angle sensor for detecting the orientation of the lower mold base is provided on the base and sleeved on the circular mating seat. The angle sensor is electrically connected to the controller, and an electric slip ring is installed between the base and the circular mating seat. The flipping motor, the lifting push rod and the main motor are all electrically connected to the controller through the electric slip ring.

[0012] Optionally, a locking motor is fixedly installed at both the front and rear ends of the lower mold base, and the output end of the locking motor drives a locking plate. A limiting engagement protrusion corresponding to the locking plate is fixedly installed on the upper mold base, and the locking motor is used to clamp the locking plate on the limiting engagement protrusion, thereby fixing the upper mold base and the lower mold base together. The locking motor is electrically connected to the controller.

[0013] Optionally, an ejector rod is fixedly installed at the rear end of the lower mold base, and the output end of the ejector rod is used to lift the upper mold base from the lower mold base to achieve mold opening.

[0014] Compared with the prior art, the beneficial effects of the copper sleeve centrifugal casting device provided by this utility model are:

[0015] 1. This utility model completes casting by disassembling the casting mold into an upper mold base and a lower mold base, and can achieve the casting of copper sleeve workpieces with complex outer wall shapes by opening the mold and then taking out the copper sleeve workpiece.

[0016] 2. This utility model facilitates the inspection and maintenance of equipment by allowing the upper and lower mold bases to be separated and the entire casting mold to be quickly removed from the base.

[0017] 3. This utility model achieves automatic mold closing and opening under the control of a controller, which can effectively save labor costs and improve production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation of the base and the pouring pipe of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the casting mold of this utility model;

[0022] Figure 5 This is a cross-sectional schematic diagram of the casting mold of this utility model.

[0023] In the diagram: 1. Base; 2. Casting mold; 201. Upper mold base; 202. Lower mold base; 203. Sprue; 3. Limiting ring; 4. Gear ring; 5. Sprue pipe; 6. Lifting push rod; 7. Limiting fitting protrusion; 8. Locking plate; 9. Ejector push rod; 10. Locking motor; 11. Tilting motor; 12. Adjusting push rod; 13. Circular mating seat; 14. Controller; 15. Electric slip ring; 16. Angle sensor; 17. Support roller; 18. Drive wheel; 19. Main motor; 20. Copper sleeve workpiece; 21. Ejector pin. Detailed Implementation

[0024] To clearly and completely describe the objectives and technical solutions of this utility model, and to more clearly illustrate its advantages, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Example 1: Please refer to Figures 1 to 5This utility model provides a centrifugal casting device for copper bushings, including a base 1, on which a casting mold 2 for casting copper bushing workpieces 20 is provided. The casting mold 2 includes an upper mold base 201 and a lower mold base 202. A flipping motor 11 is fixedly installed on the upper mold base 201, and the lower mold base 202 is fixed to the output end of the flipping motor 11. After the upper mold base 201 is flipped by the flipping motor 11, it is snapped onto the lower mold base 202, thereby realizing mold closing. After mold closing, the copper bushing workpiece 20 can be manufactured using the cavity inside the casting mold 2. The rotary motor 11 can also cause the upper mold base 201 to be flipped upward from the lower mold base 202, thereby realizing mold opening. The bottom of the lower mold base 202 is fixed with a lifting push rod 6, and the output end of the lifting push rod 6 drives an ejector pin 21 for ejecting the copper sleeve workpiece 20 from the casting mold 2. After the upper mold base 201 is flipped from the lower mold base 202 by the rotary motor 11 to realize mold opening, the lifting push rod 6 can push the ejector pin 21 to eject the copper sleeve workpiece 20 from the casting mold 2. In this way, the operator can remove the ejected copper sleeve workpiece 20 from the casting mold. The casting mold 2 is equipped with a limit ring 3 and a toothed ring 4, each consisting of two halves respectively mounted on the upper mold base 201 and the lower mold base 202. At least two pairs of support rollers 17 are rotatably mounted on the base 1, positioned between the casting mold 2 and the limit ring 3. These support rollers 17 support the rotation of the casting mold 2. Because the support rollers 17 are confined between the casting mold 2 and the limit ring 3, they effectively restrict the vertical and horizontal movement of the casting mold 2, thus allowing the casting mold 2 to rotate only... It can rotate along its own axis, effectively ensuring the rotational accuracy of the casting mold 2 and avoiding unnecessary vibration and noise during operation. Moreover, when the casting mold 2 needs to be removed and replaced, it is only necessary to open the upper mold base 201 and the lower mold base 202, and then continue to rotate the casting mold 2 so that the support roller 17 can slide out of the inside of the limit ring 3 from the opened area between the upper mold base 201 and the lower mold base 202, thereby removing the casting mold 2 as a whole. This facilitates maintenance, especially the inspection and cleaning of the cavity. A main motor 19 is fixedly installed on the base 1, and the output end of the main motor 19 drives a drive wheel 18 that meshes with the gear ring 4. The main motor 19 is used to drive the casting mold 2 to rotate. A controller 14 is installed on the base 1, and the controller 14 is electrically connected to the tilting motor 11, the lifting push rod 6 and the main motor 19 respectively. The main motor 19 can not only drive the casting mold 2 to rotate, but also a worm gear reducer can be installed between the main motor 19 and the drive wheel 18. The worm gear reducer can lock the position of the casting mold 2 by utilizing the function that the worm gear reducer cannot transmit power in reverse. That is to say, when the main motor 19 does not rotate, the casting mold 2 will not be able to rotate. This method can ensure that when the operator takes out the copper sleeve workpiece 20 from the casting mold, the casting mold 2 will not be tilted as a whole, thus avoiding accidents.

[0026] Please see Figures 1 to 5 A pouring port 203 is formed between the upper mold base 201 and the lower mold base 202, allowing the molten material to be poured into the cavity of the casting mold 2. An adjusting push rod 12 is fixedly installed on the base 1. A pouring pipe 5 is fixed to the output end of the adjusting push rod 12 and is used to adjust the position of the pouring pipe 5. The pouring pipe 5 is inserted into the pouring port 203 to provide molten casting material to the cavity of the casting mold 2. The adjusting push rod 12 is electrically connected to the controller 14. After the casting mold 2 is closed, the adjusting push rod 12 drives the pouring pipe 5 to be inserted into the pouring port 203. Then the casting mold 2 starts to rotate. The operator feeds the molten casting material into the inlet of the pouring pipe 5, thus using the pouring pipe 5 to feed the molten casting material into the cavity of the casting mold 2 to achieve centrifugal casting. The molten casting material used here has different raw material ratios depending on the requirements of copper sleeve casting, but it is generally alloy copper or pure copper. After centrifugal casting is completed, adjusting the push rod 12 can pull the pouring pipe 5 out of the pouring port 203, thereby preventing the pouring pipe 5 from affecting the mold opening of the casting mold 2 and the removal process of the copper sleeve workpiece 20.

[0027] Please see Figures 1 to 5 A circular mating seat 13, concentric with the casting mold 2, is fixedly installed on the lower mold base 202. An angle sensor 16, fitted onto the circular mating seat 13, is mounted on the base 1 to detect the orientation of the lower mold base 202. The angle sensor 16 is electrically connected to the controller 14. An electric slip ring 15 is installed between the base 1 and the circular mating seat 13. The tilting motor 11, the lifting push rod 6, and the main motor 19 are all electrically connected to the controller 14 via the electric slip ring 15. When the casting mold 2 rotates, the circular mating seat 13 rotates concentrically with the casting mold 2. This allows the control signal from the controller 14 to be transmitted to the tilting motor 11, the lifting push rod 6, and the main motor 19 via the electric slip ring 15. Other electronic devices on the casting mold 2 that need to be electrically connected to the controller 14 are also electrically connected to the controller 14 via the electric slip ring 15. The controller 14 can determine whether the lower mold base 202 is facing downward by the angle signal identified by the angle sensor 16. In this way, the controller can control the main motor 19 to ensure that the lower mold base 202 is facing downward, so that after the upper mold base 201 is opened, the copper sleeve workpiece 20 can be pushed upward, making it convenient for the operator to pick up the copper sleeve workpiece 20. It can also avoid the problem of the support roller 17 getting stuck on the limit ring 3 due to the incorrect mold opening direction of the upper mold base 201 and the lower mold base 202. Therefore, it facilitates automatic mold opening.

[0028] When in use, this device can automatically open the casting mold 2 and eject the copper sleeve workpiece 20, making it convenient for operators to remove the copper sleeve workpiece 20. Moreover, since the direction of removal of the copper sleeve workpiece 20 is not coaxial with the axis of the casting mold 2, the shape of the copper sleeve workpiece 20 will not affect demolding. It can be used to produce copper sleeve workpieces with more complex shapes, greatly expanding the range of types of copper sleeve workpieces 20 that can be centrifugally cast. After the mold is opened, it can also automatically close the mold. If it is combined with external automatic pouring equipment and a robot arm to remove the copper sleeve workpiece 20, fully automated casting can be achieved, thereby greatly saving labor costs and improving work efficiency.

[0029] Example 2: Please refer to Figure 1 , Figure 2 and Figure 4 Based on Embodiment 1, locking motors 10 are fixedly installed at the front and rear ends of the lower mold base 202, and the output end of the locking motor 10 drives the locking plate 8. The upper mold base 201 is fixedly installed with a limiting engagement protrusion 7 that is corresponding to and clamps the locking plate 8. The locking motor 10 is used to clamp the locking plate 8 on the limiting engagement protrusion 7, thereby fixing the upper mold base 201 and the lower mold base 202 together. During the mold closing stage of the casting mold 2, the locking motor 10 rotates the locking plate 8 to the top of the limiting engagement protrusion 7 for clamping, which can increase the mold closing pressure between the upper mold base 201 and the lower mold base 202, thereby preventing the molten casting material from entering the mold closing surface and affecting the processing, thus improving the reliability of the equipment. During the mold opening stage of the casting mold 2, the locking motor 10 can rotate the locking plate 8 to disengage it from the clamping state with the limiting engagement protrusion 7, thereby facilitating normal mold opening. The locking motor 10 is electrically connected to the controller 14. The lower mold base 202 is fixedly equipped with an ejector rod 9 at its rear end. The output end of the ejector rod 9 is used to lift the upper mold base 201 from the lower mold base 202 to open the mold. During the mold opening process of the casting mold 2, in order to prevent the flipping motor 11 from failing to open the upper mold base 201 normally, the output end of the ejector rod 9 can be used to open the upper mold base 201 first. This double insurance can ensure normal mold opening and further improve the reliability of the equipment.

[0030] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. A centrifugal casting device for copper bushings, comprising a base (1), and a casting mold (2) for casting copper bushing workpieces (20) is provided on the base (1), characterized in that: The casting mold (2) includes an upper mold base (201) and a lower mold base (202). A flipping motor (11) is fixedly installed on the upper mold base (201). The lower mold base (202) is fixed to the output end of the flipping motor (11). The upper mold base (201) is flipped by the flipping motor (11) and then fastened to the lower mold base (202). A lifting push rod (6) is fixed to the bottom of the lower mold base (202). The output end of the lifting push rod (6) drives an ejector pin (21) for ejecting the copper sleeve workpiece (20) from the casting mold (2). A limit ring is provided on the casting mold (2). 3) and gear ring (4), and the limiting ring (3) and gear ring (4) are each composed of two halves respectively set on the upper mold base (201) and the lower mold base (202). At least two pairs of support rollers (17) are rotatably installed on the base (1) and are locked between the casting mold (2) and the limiting ring (3). The support rollers (17) are used to support the casting mold (2) to rotate. The main motor (19) is fixedly installed on the base (1), and the output end of the main motor (19) drives the drive wheel (18) that meshes with the gear ring (4). The main motor (19) is used to drive the casting mold (2) to rotate.

2. The centrifugal casting device for copper sleeves according to claim 1, characterized in that: A controller (14) is installed on the base (1), and the controller (14) is electrically connected to the flipping motor (11), the lifting push rod (6) and the main motor (19).

3. The centrifugal casting device for copper sleeves according to claim 2, characterized in that: A pouring port (203) for pouring into the cavity of the casting mold (2) is formed between the upper mold base (201) and the lower mold base (202). An adjusting push rod (12) is fixedly installed on the base (1). A pouring pipe (5) is fixed to the output end of the adjusting push rod (12) and is used to adjust the position of the pouring pipe (5). The pouring pipe (5) is used to insert into the pouring port (203) to provide molten pouring material into the cavity of the casting mold (2). The adjusting push rod (12) is electrically connected to the controller (14).

4. The centrifugal casting device for copper sleeves according to claim 2, characterized in that: A circular mating seat (13) concentric with the casting mold (2) is fixedly installed on the lower mold base (202), and an angle sensor (16) for detecting the orientation of the lower mold base (202) is provided on the base (1) and sleeved on the circular mating seat (13). The angle sensor (16) is electrically connected to the controller (14), and an electric slip ring (15) is installed between the base (1) and the circular mating seat (13). The flipping motor (11), the lifting push rod (6) and the main motor (19) are all electrically connected to the controller (14) through the electric slip ring (15).

5. A centrifugal casting device for copper sleeves according to claim 2, characterized in that: Locking motors (10) are fixedly installed at the front and rear ends of the lower mold base (202), and the output end of the locking motor (10) drives the locking plate (8). The upper mold base (201) is fixedly installed with a limiting engagement protrusion (7) that corresponds to and engages with the locking plate (8). The locking motor (10) is used to engage the locking plate (8) on the limiting engagement protrusion (7) to fix the upper mold base (201) and the lower mold base (202) together. The locking motor (10) is electrically connected to the controller (14).

6. The centrifugal casting device for copper sleeves according to claim 2, characterized in that: The lower mold base (202) is fixedly equipped with an ejector rod (9) at its rear end, and the output end of the ejector rod (9) is used to lift the upper mold base (201) from the lower mold base (202) to achieve mold opening.

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