CN113828751A

CN113828751A - Centrifugal casting machine

Info

Publication number: CN113828751A
Application number: CN202111175938.3A
Authority: CN
Inventors: 刘祖涛; 吴小虎; 刘海川; 曹怀东; 孙静; 曾鑫; 周锐; 冯勇
Original assignee: Csic Chongqing Intelligent Equipment Engineering Design Co ltd
Current assignee: Csic Chongqing Intelligent Equipment Engineering Design Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2021-12-24

Abstract

The invention provides a centrifugal casting machine, and belongs to the technical field of casting equipment. It has solved the poor, poor problem of casting effect of current casting equipment stability. It includes the base, fix the tailstock box on the base and locate the main shaft box on the base with sliding, wear to be equipped with lateral extension in the tailstock box and can wind self axis pivoted first rotation axis, the one end that first rotation axis is close to the main shaft box is coaxial to be linked firmly the driven plate, be equipped with the sprue on the driven plate, the internal second rotation axis that is equipped with the coaxial setting of first rotation axis of headstock and is used for driving the second rotation axis around self axis pivoted power component, the one end that the second rotation axis is close to the tailstock box is coaxial to be linked firmly the driving plate, be equipped with the subassembly that pulls that is used for making the main shaft box be close to or keep away from the tailstock box between tailstock box and the main shaft box. The invention has the advantages of good stability, good casting effect, good cooling effect, good protection effect and the like.

Description

Centrifugal casting machine

Technical Field

The invention belongs to the technical field of casting equipment, and relates to a centrifugal casting machine.

Background

The babbitt metal centrifugal casting machine is characterized by that the babbitt metal liquid metal is poured into a rotary casting mould, and under the action of centrifugal force the mould is filled, cooled and solidified so as to obtain the casting. The workpiece formed by the centrifugal casting machine has the advantages of good feeding effect, compact casting structure and the like.

For example, chinese patent discloses a babbitt metal centrifugal casting machine [ grant publication number is CN205927049U ], including speed governing rotating electrical machines, a pedestal, remove top dish and fixed top dish, speed governing rotating electrical machines surface is provided with the motor speed regulator, speed governing rotating electrical machines bottom is provided with power supply, power supply installs on the base surface, speed governing rotating electrical machines is connected with the reducing gear box, the reducing gear box is connected with the rotation axis, the rotation axis other end and fixed top dish are connected, flexible (holding) chuck is installed to fixed top dish opposite side, base surface mounting has fore-stock and after-poppet, the rotation axis runs through the fore-stock, remove the top dish outside and be connected with the hydraulic pressure cylinder, the hydraulic pressure cylinder runs through the after-poppet, remove top dish internal connection and have the feed liquor groove, be provided with the protection casing between removal top dish and the fixed top dish, the export of feed liquor groove sets up inside the protection casing.

The centrifugal casting machine has the following problems: the hydraulic pressure compresses tightly the cylinder and keeps away from the one end that removes the head disk and act on the base, compresses tightly the in-process base atress, has influenced the stability of base, causes the slight deformation of base even, and then influences the concentricity of removing the head disk and fixed head disk, has finally influenced the casting quality of work piece.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a centrifugal casting machine with good stability.

The purpose of the invention can be realized by the following technical scheme:

centrifugal casting machine, including the base, fix the tailstock box on the base and slide and locate the main shaft box on the base, wear to be equipped with horizontal extension in the tailstock box and can wind self axis pivoted first rotation axis, the one end that first rotation axis is close to the main shaft box is coaxial to be linked firmly the driven plate, be equipped with the sprue on the driven plate, the main shaft box is internal to be equipped with the coaxial second rotation axis that sets up of first rotation axis and to be used for driving the second rotation axis around self axis pivoted power component, the coaxial main drive plate that has linked firmly of one end that the second rotation axis is close to the tailstock box, be equipped with between tailstock box and the main shaft box and be used for making the main shaft box be close to or keep away from the traction assembly of tailstock box.

Because the traction assembly is arranged between the tailstock box body and the main shaft box body, the main shaft box body is close to the tailstock box body in a pulling mode, and the base is not stressed in the traction process. During operation, a workpiece (such as a sliding bearing base body) is placed between the driving disc and the driven disc which are arranged oppositely, the traction assembly acts to drive the main shaft box body to be close to the tailstock box body, so that the distance between the driving disc and the driven disc is reduced, the workpiece is finally clamped through the driving disc and the driven disc, babbit metal is injected into the workpiece through the injection port, the power assembly acts to drive the second rotating shaft to rotate, the driving disc, the workpiece and the driven disc are driven to rotate, and the casting is formed by mold filling, cooling and solidifying under the action of centrifugal force.

In the centrifugal casting machine, the traction assembly comprises two hydraulic cylinders symmetrically arranged along the central axis of the second rotating shaft, one end of each hydraulic cylinder is connected with the tailstock box body, and the other end of each hydraulic cylinder is connected with the main spindle box body.

Because the two hydraulic cylinders are symmetrically arranged along the central axis of the second rotating shaft and act synchronously, the stress balance of the workpiece can be ensured during the pressing. Besides the hydraulic cylinder, an air cylinder, an electric cylinder and the like can be adopted to replace the hydraulic cylinder.

In the centrifugal casting machine, one hydraulic cylinder is located at the upper part of one side of the tailstock box body, the other hydraulic cylinder is located at the lower part of the other side of the tailstock box body, and the extending direction of the hydraulic cylinders is parallel to the axis of the second rotating shaft. An accommodating space is reserved above the hydraulic cylinder with a lower position, and a workpiece is conveniently arranged between the driving disc and the driven disc.

In the centrifugal casting machine, the power assembly comprises a motor fixed on the main shaft box body, an intermediate shaft coaxially and fixedly connected with an output shaft of the motor, a driving gear coaxially and fixedly connected on the intermediate shaft and a driven gear coaxially and fixedly connected on the second rotating shaft, and the driving gear is meshed with the driven gear.

When the motor works, the intermediate shaft is driven to rotate, the intermediate shaft drives the driving gear to rotate, and the driving gear drives the driven gear to rotate, so that the second rotating shaft is driven to rotate. In order to reduce the rotation speed of the workpiece, the outer diameter of the driven gear is larger than that of the driving gear.

In the centrifugal casting machine, the base is provided with a guide rail parallel to the axis of the second rotating shaft, the guide rail is slidably matched with a sliding block, and the main shaft box is fixed on the sliding block. Specifically, two guide rails can be arranged and are respectively positioned on the left side and the right side, a sliding block is arranged on each guide rail, and the spindle box body is fixedly connected with the sliding blocks positioned on different guide rails.

In above-mentioned centrifugal casting machine, have the first shaft hole of coaxial setting in the first rotation axis, the sprue is with the coaxial intercommunication in first shaft hole, be equipped with on the base and be located the first rotation axis and keep away from the notes material subassembly of driven plate one end.

In the centrifugal casting machine, the material injection assembly comprises a rack, a moving seat arranged on the rack in a sliding mode and a hopper arranged on the moving seat, a casting pipe coaxially arranged with the first shaft hole is arranged on the lower portion of the hopper, one end, close to the hopper, of the casting pipe is communicated with the bottom of the hopper, and a valve used for controlling the on-off of the casting pipe is arranged in the hopper.

The moving direction of the moving seat is the same as the length direction of the casting pipe, and the moving seat can drive the hopper and the casting pipe to be close to or far away from the first shaft hole when moving. The length of casting tube is greater than the length in first shaft hole, and the external diameter of casting tube is less than the aperture in first shaft hole, and it can stretch into the middle part of work piece all the time, has avoided only extending to the work piece port, and liquid metal will be through the problem that a very long section distance could reach the work piece middle part, and it is favorable to the casting of long work piece.

During casting, the movable seat is close to the tailstock box body, the casting pipe penetrates through the first shaft hole and the injection port and then extends into the workpiece, the valve is opened afterwards, the babbitt metal located in the hopper enters the workpiece through the casting pipe, and the casting is formed by mold filling, cooling and solidification under the action of centrifugal force. Because the first shaft hole and the pouring gate are respectively and coaxially arranged with the first rotating shaft, the babbitt metal can be injected into the workpiece in the rotating process of the workpiece, and the problem that the babbitt metal is solidified when the workpiece does not rotate is avoided; and the casting pipe can stretch into the workpiece, so that the babbitt metal can be fully contacted with the inner wall of the workpiece, and the casting is more uniform.

In the centrifugal casting machine, the movable seat is provided with a weighing sensor, and the hopper is arranged on the weighing sensor. The total weight of the hopper and the babbitt metal liquid metal is measured by the weighing sensor, and the residual weight is measured after casting, so that the casting amount of the babbitt metal liquid metal can be accurately controlled.

In the centrifugal casting machine, a second shaft hole is coaxially arranged in the second rotating shaft, an opening hole coaxially arranged with the second shaft hole is formed in the driving disc, and a temperature sensor is arranged at one end, close to the opening hole, of the second shaft hole. The temperature sensor is used for detecting the temperature inside the workpiece in real time, and can effectively control the casting quality, so that the casting quality of the workpiece is improved.

In the centrifugal casting machine, a fixed seat is arranged on the lateral side of the hydraulic cylinder positioned at the upper part of one side of the tailstock box body, a guide rod parallel to the second rotating shaft is arranged on the fixed seat, and a water spraying pipe is arranged on the guide rod. Specifically, an infrared sensor is arranged on the fixed seat and used for detecting the temperature outside the workpiece, a cooling cylinder used for driving the water spray pipe to move along the length direction of the guide rod is arranged, the cooling cylinder is controlled by a control system, and the infrared sensor is connected with the control system. The spray pipe is bent along the outer surface of the workpiece, a plurality of water outlet holes which are independently controlled by the electromagnetic valve are arranged on one side of the spray pipe close to the workpiece, and the position of the spray pipe and the size of cooling water are controlled according to the temperature of the surface of the workpiece.

In the centrifugal casting machine, the base is provided with the cover cap, the tailstock box body and the spindle box body are positioned in the cover cap, the cover cap is provided with an opening, and the opening is provided with the sliding door. Due to the arrangement of the cover cap, the protection effect is achieved, and the workpiece is prevented from accidentally falling, throwing and splashing.

Compared with the prior art, the centrifugal casting machine has the following advantages:

the main spindle box body is close to the tailstock box body in a pulling mode, the base is not stressed in the pulling process, deformation cannot occur, the stability is improved, and the concentricity is guaranteed; the casting pipe of the material injection assembly can extend into the middle of the workpiece, so that the problem that liquid metal can reach the middle of the workpiece only after extending to the port of the workpiece for a long distance is avoided, and the casting of long workpieces is facilitated; the water spray pipe capable of moving along with the length of the workpiece is arranged, so that the position of the water spray pipe and the size of cooling water can be controlled according to the temperature of the surface of the workpiece, and the cooling effect is improved; the cover cap is arranged and plays a role in protection, and the workpiece is prevented from accidentally falling, throwing and splashing.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the preferred embodiment of the present invention.

FIG. 3 is a schematic diagram of another internal structure of the preferred embodiment of the present invention.

Fig. 4 is a cross-sectional view of a preferred embodiment of the present invention.

In the figure, 1, a base; 2. a tailstock box body; 3. a main shaft box body; 4. a guide rail; 5. a slider; 6. a first rotating shaft; 7. a driven plate; 8. a material injection port; 9. a first shaft hole; 10. a frame; 11. a movable seat; 12. a hopper; 13. a casting tube; 14. a valve; 15. a lift cylinder; 16. a track; 17. a weighing sensor; 18. a mounting seat; 19. a vacuum tube; 20. a second rotation shaft; 21. a driving disk; 22. a first annular limiting blocking edge; 23. a second annular limiting blocking edge; 24. a motor; 25. an intermediate shaft; 26. a driving gear; 27. a driven gear; 28. a hydraulic cylinder; 29. a second shaft hole; 30. a thermal resistor mounting base; 31. opening a hole; 32. a temperature sensor; 33. a cover; 34. a sliding door; 35. a fixed seat; 36. a guide bar; 37. a water spray pipe; 38. an infrared sensor; 39. cooling the cylinder; a. and (5) a workpiece.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 2 and fig. 3, the centrifugal casting machine includes a base 1, a tailstock box 2 fixed on the base 1, and a main spindle box 3 slidably disposed on the base 1, wherein two guide rails 4 are symmetrically distributed on the upper surface of the base 1 and are parallel to each other, two slide blocks 5 are respectively slidably fitted on the two guide rails 4, and the main spindle box 3 is fixed on the two slide blocks 5 at the same time, so that the main spindle box 3 can move along the length direction of the guide rails 4, thereby being close to or far away from the tailstock box 2.

As shown in fig. 4, a first rotating shaft 6 extending transversely and capable of rotating around its central axis is inserted into the tailstock case 2, the first rotating shaft 6 is parallel to the guide rail 4, at least two bearings and at least one thrust bearing are arranged between the tailstock case 2 and the first rotating shaft 6, the bearings support the first rotating shaft 6, and the thrust bearing can prevent the first rotating shaft 6 from moving axially when being extruded.

As shown in fig. 4, one end of the first rotating shaft 6, which is close to the main shaft box 3, is coaxially fixedly connected with a driven plate 7, the driven plate 7 is provided with a material injection port 8, a first shaft hole 9 is coaxially arranged in the first rotating shaft 6, the material injection port 8 is coaxially communicated with the first shaft hole 9, and a material injection assembly is arranged at one end of the first shaft hole 9, which is far away from the material injection port 8 (i.e., at one end of the first rotating shaft 6, which is far away from the driven plate 7).

In this embodiment, as shown in fig. 1 to 4, the material injection assembly includes a frame 10 fixed on the base 1, a movable seat 11 slidably disposed on the frame 10, and a hopper 12 disposed on the movable seat 11, a casting pipe 13 coaxially disposed with the first shaft hole 9 is disposed at a lower portion of the hopper 12, one end of the casting pipe 13 close to the hopper 12 is communicated with a bottom of the hopper 12, a valve 14 for controlling on/off of the casting pipe 13 is disposed in the hopper 12, and the valve 14 is driven by a lifting cylinder 15 fixed on the hopper 12 to move up and down to control on/off of the casting pipe 13.

Specifically, as shown in fig. 3, two parallel rails 16 are disposed on the frame 10, the rails 16 are parallel to the first rotating shaft 6, the moving base 11 is slidably disposed on the two rails 16, and can move laterally along the two rails 16, and when the moving base 11 moves, the moving base can drive the hopper 12 and the casting pipe 13 to approach or separate from the first shaft hole 9. As shown in fig. 4, the length of the casting pipe 13 is greater than the length of the first shaft hole 9, the outer diameter of the casting pipe 13 is smaller than the diameter of the first shaft hole 9, and the casting pipe can always extend into the middle of the workpiece a, so that the problem that liquid metal can reach the middle of the workpiece a only after extending to the port of the workpiece a for a long distance is avoided, and the structure is beneficial to casting of the long workpiece a.

The hopper 12 comprises a heat preservation furnace positioned on the inner side and a heating sleeve positioned on the outer side, the heating sleeve surrounds the heat preservation furnace, and one end, close to the hopper 12, of the casting pipe 13 is communicated with an inner cavity of the heat preservation furnace. Heating coils (not shown) are provided around the casting pipe 13 outside the casting pipe 13 to heat the liquid metal in the casting pipe 13 and prevent early solidification thereof.

During casting, the movable seat 11 is close to the tailstock box body 2, the casting pipe 13 penetrates through the first shaft hole 9 and the injection port 8 and then extends into the workpiece a, the valve 14 is opened later, the babbitt metal in the hopper 12 enters the workpiece a through the casting pipe 13, and the casting is formed by mold filling, cooling and solidifying under the action of centrifugal force.

As shown in fig. 4, a load cell 17 is provided on the movable base 11, a mounting base 18 is provided on the load cell 17, and the hopper 12 and the lift cylinder 15 are fixed to the mounting base 18. The weight of the casting pipe 13, the lifting cylinder 15, the mounting seat 18, the hopper 12 and the liquid metal in the casting pipe before and after casting can be measured by the weighing sensor 17, and the casting amount of the babbitt metal liquid metal can be accurately controlled.

In order to prevent cooling of the liquid metal in the casting tube 13, a vacuum tube 19 is coaxially arranged in the first axial bore 9, as shown in fig. 4, the inner diameter of the vacuum tube 19 being slightly larger than the outer diameter of the casting tube 13.

As shown in fig. 4, a second rotating shaft 20 disposed coaxially with the first rotating shaft 6 and a power assembly for driving the second rotating shaft 20 to rotate around its central axis are provided in the spindle case 3. At least two bearings supporting the second rotating shaft 20 and at least one thrust bearing preventing the axial movement of the pressed second rotating shaft 20 are provided between the main spindle housing 3 and the second rotating shaft 20.

As shown in fig. 4, one end of the second rotating shaft 20 close to the tailstock box 2 is coaxially and fixedly connected with a driving disc 21, the driving disc 21 is provided with a first annular limiting blocking edge 22, the driven disc 7 is provided with a second annular limiting blocking edge 23, the first annular limiting blocking edge 22 and the second annular limiting blocking edge 23 have the same inner diameter and are coaxially arranged, and the inner diameters of the first annular limiting blocking edge 22 and the second annular limiting blocking edge 23 are slightly larger than or equal to the outer diameter of the workpiece a. One end of the space can be inserted into the first annular limiting blocking edge 22, and the other end of the workpiece a can be inserted into the second annular limiting blocking edge 23, so that the workpiece a and the driving disk 21 are coaxial.

As shown in fig. 4, the power assembly includes a motor 24 fixed on the main shaft housing 3, a middle shaft 25 coaxially and fixedly connected to an output shaft of the motor 24, a driving gear 26 coaxially and fixedly connected to the middle shaft 25, and a driven gear 27 coaxially and fixedly connected to the second rotating shaft 20, wherein the driving gear 26 is engaged with the driven gear 27. The intermediate shaft 25 is parallel to the second rotary shaft 20, and the driven gear 27 has an outer diameter larger than that of the drive gear 26 in order to reduce the rotation speed of the workpiece a. An output shaft of the motor 24 is coaxially and fixedly connected with the intermediate shaft 25 through a coupler. When the motor 24 works, the intermediate shaft 25 is driven to rotate, the intermediate shaft 25 drives the driving gear 26 to rotate, and the driving gear 26 drives the driven gear 27 to rotate, so that the second rotating shaft 20 is driven to rotate.

In this embodiment, a traction unit for moving the spindle case 3 closer to or away from the tailstock case 2 is provided between the tailstock case 2 and the spindle case 3. Specifically, as shown in fig. 2 and 3, the drawing assembly includes two hydraulic cylinders 28 symmetrically disposed along the central axis of the second rotating shaft 20, one end of the hydraulic cylinder 28 is connected to the tailstock body 2, and the other end of the hydraulic cylinder 28 is connected to the headstock body 3.

Because the two hydraulic cylinders 28 are symmetrically arranged along the central axis of the second rotating shaft 20, and the two hydraulic cylinders 28 act synchronously, the workpiece a can be ensured to be stressed evenly during pressing. Instead of the hydraulic cylinder 28, a pneumatic cylinder, an electric cylinder, or the like may be used.

As shown in fig. 2 and 3, one of the hydraulic cylinders 28 is located at an upper portion of one side of the tailstock case 2, and the other hydraulic cylinder 28 is located at a lower portion of the other side of the tailstock case 2, and the extending direction of the hydraulic cylinder 28 is parallel to the axis of the second rotating shaft 20. A space is left above the lower hydraulic cylinder 28 to facilitate the insertion of the workpiece a between the driving disk 21 and the driven disk 7.

In the embodiment, the main spindle box body 3 is close to the tailstock box body 2 in a pulling mode, and the base 1 is not stressed in the pulling process. When the casting machine works, a workpiece a (such as a sliding bearing matrix) is placed between the driving disc 21 and the driven disc 7 which are arranged oppositely, the traction assembly acts to drive the driving shaft box body 3 to be close to the tailstock box body 2, the distance between the driving disc 21 and the driven disc 7 is reduced, finally, the workpiece a is clamped through the driving disc 21 and the driven disc 7, babbit metal is injected into the workpiece a through the injection port 8, the power assembly acts to drive the second rotating shaft 20 to rotate, so that the driving disc 21, the workpiece a and the driven disc 7 are driven to rotate, and the casting is formed by mold filling, cooling and solidifying under the action of centrifugal force.

As shown in fig. 4, a second shaft hole 29 is coaxially formed in the second rotating shaft 20, a thermal resistor mounting base 30 is arranged in the second shaft hole 29, an opening 31 coaxially formed and communicated with the second shaft hole 29 is formed in the driving disk 21, a temperature sensor 32 is arranged at one end, close to the opening 31, of the thermal resistor mounting base 30, and the temperature sensor 32 is used for detecting the temperature inside the workpiece a in real time, so that the casting quality can be effectively controlled, and the casting quality of the workpiece a is improved.

In the present embodiment, as shown in fig. 1, the base 1 is provided with a cover 33, the cover 33 covers other structures (such as the main spindle housing 3, the tailstock housing 2, the driving disk 21, the driven disk 7, the workpiece a, and the like) provided on the upper portion of the base 1, an opening is provided in the cover 33 at a position opposite to the insertion space, and a sliding door 34 is provided in the opening. The cover 33 serves as a guard against accidental dropping and splashing of the workpiece a. A transparent window is arranged on the cover cap 33, so that the casting condition can be observed in real time.

As shown in fig. 3, a fixed seat 35 is disposed on the inner side of the cover 33 and located at the upper portion of one side of the tailstock case 2, two guide rods 36 parallel to the second rotating shaft 20 are disposed on the fixed seat 35, and a water spray pipe 37 is slidably disposed on the guide rods 36. The water spray pipe 37 is bent substantially along the surface of the workpiece a, and a plurality of water outlet holes independently controlled by electromagnetic valves are arranged on one side of the water spray pipe 37 close to the workpiece a, so that the position of the water spray pipe 37 and the size of the cooling water are controlled according to the temperature of the surface of the workpiece a.

In order to realize automatic control of cooling water, as shown in fig. 3, an infrared sensor 38 for detecting the temperature of the outer surface of the workpiece a is arranged on the fixed seat 35, a cooling cylinder 39 for driving the water spray pipe 37 to move along the length direction of the guide rod 36 is arranged on the fixed seat 35, the cooling cylinder 39 is controlled by a control system, and the infrared sensor 38 is connected with the control system. The infrared sensor 38 transmits the temperature of the surface of the workpiece a to the control system, the control system finds the portion to be cooled, the cooling cylinder 39 moves the water spray pipe 37 to the portion to be cooled, and then the cooling water is sprayed.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides a centrifugal casting machine, includes base (1), fixes tailstock box (2) on base (1) and slides and locate main shaft box (3) on base (1), a serial communication port, wear to be equipped with horizontal extension and can locate main shaft box (3) on base (1) in tailstock box (2), the one end that first rotation axis (6) are close to main shaft box (3) is coaxial to be linked firmly driven plate (7), be equipped with sprue (8) on driven plate (7), be equipped with in main shaft box (3) with second rotation axis (20) of the coaxial setting of first rotation axis (6) and be used for driving second rotation axis (20) around self axis pivoted power component, the one end that second rotation axis (20) are close to tailstock box (2) is coaxial to be linked firmly driving plate (21), be equipped with between tailstock box (2) and main shaft box (3) and be used for making main shaft box (3) be close to or keep away from tailstock box (2)'s tailstock box (3) of tail A tow assembly.

2. Centrifugal casting machine according to claim 1, characterized in that said drawing assembly comprises two hydraulic cylinders (28) arranged symmetrically along the central axis of the second rotation axis (20), one end of said hydraulic cylinders (28) being connected to the tailstock box (2) and the other end of said hydraulic cylinders (28) being connected to the main shaft box (3).

3. The centrifugal casting machine according to claim 2, characterized in that one of the hydraulic cylinders (28) is located at the upper portion of one side of the tailstock tank (2) and the other hydraulic cylinder (28) is located at the lower portion of the other side of the tailstock tank (2), and in that the extension direction of said hydraulic cylinder (28) is parallel to the axis of the second rotation shaft (20).

4. The centrifugal casting machine according to claim 1, 2 or 3, characterized in that the power assembly comprises an electric motor (24) fixed to the main shaft housing (3), an intermediate shaft (25) coaxially secured to the output shaft of the electric motor (24), a driving gear (26) coaxially secured to the intermediate shaft (25), and a driven gear (27) coaxially secured to the second rotation shaft (20), the driving gear (26) meshing with the driven gear (27).

5. The centrifugal casting machine according to claim 1, characterized in that the base (1) is provided with a guide rail (4) parallel to the axis of the second rotating shaft (20), a slide block (5) is slidably fitted on the guide rail (4), and the main shaft box (3) is fixed on the slide block (5).

6. The centrifugal casting machine according to claim 1, wherein the first rotating shaft (6) is provided with a first shaft hole (9) coaxially arranged therein, the injection port (8) is coaxially communicated with the first shaft hole (9), and the base (1) is provided with an injection assembly positioned at one end of the first rotating shaft (6) far away from the driven plate (7).

7. The centrifugal casting machine according to claim 6, characterized in that the material injection assembly comprises a frame (10), a movable seat (11) slidably arranged on the frame (10) and a hopper (12) arranged on the movable seat (11), a casting pipe (13) coaxially arranged with the first shaft hole (9) is arranged at the lower part of the hopper (12), one end of the casting pipe (13) close to the hopper (12) is communicated with the bottom of the hopper (12), and a valve (14) for controlling the on-off of the casting pipe (13) is arranged in the hopper (12).

8. Centrifugal casting machine according to claim 7, characterized in that said mobile seat (11) is provided with a load cell (17) and said hopper (12) is provided on said load cell (17).

9. The centrifugal casting machine according to claim 1, characterized in that a second shaft hole (29) is coaxially arranged in the second rotating shaft (20), the driving disk (21) is provided with an opening (31) coaxially arranged with the second shaft hole (29), and one end of the second shaft hole (29) close to the opening (31) is provided with a temperature sensor (32).

10. The centrifugal casting machine according to claim 1, characterized in that a fixed seat (35) is arranged on the side of the hydraulic cylinder (28) on the upper portion of one side of the tailstock box body (2), a guide rod (36) parallel to the second rotating shaft (20) is arranged on the fixed seat (35), and a water spray pipe (37) is arranged on the guide rod (36).