A motor rotor forming die

Abstract

The present invention discloses a motor rotor forming mold, which relates to the technical field of motor rotor molds. The present invention comprises an upper mold installed on a lower mold, wherein both the lower mold and the upper mold are provided with an outer mold body, and an inner mold core is provided in the lower mold, and a cavity is formed between the inner mold core and the outer mold body. The present invention also comprises: a sliding member, wherein the sliding member is slidably provided on the upper mold, and the sliding member matches the shape of the cavity, a cavity is provided in the sliding member, an outer groove is provided on the side wall of the sliding member, and an inner groove corresponding to the position of the outer groove is provided on the inner wall of the sliding member, and a plurality of spray holes are provided on the outer groove and the inner groove. The advantage is that the present invention can polish the cavity surface before molding, and evenly apply a release agent to the polished cavity surface. At the same time, the debris and impurities that fall off after polishing can be collected, thereby effectively improving the molding quality of the casting and the subsequent demolding efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of motor rotor moulds, and in particular to a motor rotor forming mould. Background Art

[0002] The motor rotor is the rotating part of the motor, used to convert electrical energy into mechanical energy. When casting large-scale and complex motor rotors, the rotor aluminum casting process is usually used to complete the casting. During the casting process, molten aluminum is filled into the mold under pressure, and after cooling, a casting with a specific shape and performance is formed.

[0003] Since the shape of the motor rotor is relatively complex, in order to facilitate subsequent demolding, a release agent needs to be coated inside the mold before pouring the raw materials. However, the molds currently used do not have the above function and need to be manually coated with the release agent, which reduces production efficiency and cannot ensure the uniformity of the release agent coating. Therefore, it is necessary to design a motor rotor forming mold. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a motor rotor forming die, which solves the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A motor rotor forming mold comprises an upper mold mounted on a lower mold, wherein both the lower mold and the upper mold are provided with an outer mold body, and an inner mold core is provided in the lower mold, wherein a mold cavity is formed between the inner mold core and the outer mold body, and further comprises:

[0007] A sliding member, the sliding member being slidably disposed on the upper mold and matching the shape of the mold cavity, the sliding member having a cavity therein, an outer groove being formed on a side wall of the sliding member, and an inner groove corresponding to the position of the outer groove being formed on an inner wall of the sliding member, and a plurality of spray holes being formed on both the outer groove and the inner groove;

[0008] A sealing member is slidably disposed in the cavity, and the thickness of the sealing member is greater than the diameter of the spray hole. The bottom of the cavity is open, and a sealing plate is clamped to the bottom of the cavity. The sealing plate is provided with multiple absorption ports. A connecting ring is clamped on the sealing member, and a plurality of sealing columns are fixedly mounted on the bottom of the connecting ring and are sealingly and slidingly connected to the corresponding absorption ports. Changes in the positions of the sealing member and the connecting ring are used to control the opening and closing of the spray hole and the absorption port.

[0009] The pressure regulating member is sealingly and slidingly arranged in the cavity, and the pressure regulating member is located at the upper end of the sealing member. The position change of the pressure regulating member is used to regulate the pressure in the cavity.

[0010] Furthermore, a plurality of connecting blocks are fixedly installed on the side walls of the lower mold and the upper mold, and a connecting bolt is threadedly connected between each two corresponding connecting blocks at the upper and lower positions. An air vent is provided on the inner mold core, and a pouring gate communicating with the mold cavity is provided on the outer mold body.

[0011] Furthermore, the seal is composed of an outer seal and an inner seal, the outer seal corresponds to the position of the outer groove, and the inner seal corresponds to the position of the inner groove. Multiple springs are installed at the bottom of the outer seal and the inner seal, and the size of the outer seal, connecting ring and inner seal after splicing matches the cavity.

[0012] Furthermore, a plurality of clamping blocks are fixedly mounted on the inner and outer side walls of the connecting ring, and a plurality of clamping grooves for clamping with corresponding clamping blocks are provided on the side walls of the outer seal and the inner seal.

[0013] Furthermore, a plurality of connecting rods sealingly and slidingly connected to the sliding part are fixedly installed on the top of the connecting ring, and the plurality of connecting rods are sealingly and slidingly connected to the pressure regulating part, a fixed disk is fixedly installed between the tops of the plurality of connecting rods, a plurality of fixed rods sealingly and slidingly matched with the sliding part are fixedly installed on the top of the pressure regulating part, and a disc is fixedly installed between the tops of the plurality of fixed rods.

[0014] Furthermore, a support plate is fixedly installed on the side wall of the upper mold, and a motor 1 is fixedly installed on the support plate. The output end of the motor 1 is fixedly connected to a screw rod 1 that rotates with the support plate, and an L-shaped rod fixedly connected to the sliding part is threadedly installed on the screw rod 1.

[0015] Furthermore, a mounting plate is fixedly installed on the upper end of the L-shaped rod, and motor 2 and motor 3 are fixedly installed on the mounting plate, the output end of motor 2 is fixedly connected to screw rod 2, and the output end of motor 3 is fixedly connected to screw rod 3, screw rod 2 is threadedly connected to the disc, and screw rod 2 slides with the fixed disc, screw rod 3 is threadedly connected to the fixed disc, and screw rod 3 slides with the disc.

[0016] Furthermore, the length of the screw rod 1 is greater than the height of the sliding member, a controller is fixedly mounted on the side wall of the support plate, and the controller is electrically connected to the motor 1, motor 2 and motor 3.

[0017] Compared with the existing technology, the advantages of the present invention are:

[0018] 1: Through the sliding part that can be slidably arranged along the cavity, the cavity surface can be polished before molding, making the cavity surface smoother, thereby improving the quality of the casting after molding.

[0019] 2: Through the cooperation of the seal and the pressure regulating part, the mold release agent can be sprayed out of the nozzle hole simultaneously during the process of grinding the cavity surface with the sliding part to complete the coating process of the mold release agent in the cavity, which can effectively improve the subsequent casting demolding efficiency.

[0020] 3: Through the cooperation of the connecting ring and the pressure regulating part, after the release agent is applied, the pressure regulating part can be moved upward to allow the absorption port to collect the debris and impurities dropped from the cavity surface during grinding, thereby further improving the molding quality of subsequent castings. The applied release agent can then be evenly spread by moving the sliding part upward, thereby further improving the release agent coating effect.

[0021] In summary, the present invention can polish the cavity surface before molding and evenly apply a release agent to the polished cavity surface. At the same time, it can also collect debris and impurities that fall off after polishing, effectively improving the molding quality of the casting and the subsequent demolding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a motor rotor forming die proposed by the present invention;

[0023] Figure 2 for Figure 1 A top view of

[0024] Figure 3 for Figure 2 Schematic diagram of the structure of the AA surface;

[0025] Figure 4 for Figure 3 A schematic diagram of the structure of part a is enlarged;

[0026] Figure 5 for Figure 1 Schematic diagram of the structure with the sliding part removed;

[0027] Figure 6 for Figure 5 An enlarged schematic diagram of the structure at the middle and upper mold;

[0028] Figure 7 for Figure 5 An enlarged schematic diagram of the structure at the middle and lower molds;

[0029] Figure 8 for Figure 1 An enlarged schematic diagram of the structure at the middle sliding member;

[0030] Figure 9 for Figure 8 Schematic diagram of the structure after removing the sliding parts;

[0031] Figure 10 for Figure 8 Structural diagram of the middle sliding member;

[0032] Figure 11 for Figure 10 Structural diagram from another perspective;

[0033] Figure 12 for Figure 9 An enlarged schematic diagram of the structure at the middle pressure regulating part;

[0034] Figure 13 for Figure 9 An enlarged schematic diagram of the structure at the middle connecting rod;

[0035] Figure 14 for Figure 9 An enlarged schematic diagram of the structure at the middle seal.

[0036] In the figure: 1. Lower mold; 2. Upper mold; 3. Connecting block; 4. Connecting bolt; 5. Outer mold body; 6. Inner mold core; 7. Pouring gate; 8. Vent; 9. Sliding part; 10. Outer groove; 11. Inner groove; 12. Spray hole; 13. Sealing part; 14. Connecting ring; 15. Connecting rod; 16. Fixed plate; 17. Pressure regulating part; 18. Fixed rod; 19. Disc; 20. Absorption port; 21. Sealing column; 22. Block; 23. Slot; 24. Spring; 25. Support plate; 26. Motor 1; 27. Screw rod 1; 28. Mounting plate; 29. Motor 2; 30. Screw rod 2; 31. Motor 3; 32. Screw rod 3. DETAILED DESCRIPTION

[0037] Reference Figures 1-14 A motor rotor forming mold includes an upper mold 2 installed on a lower mold 1, an outer mold body 5 is provided on the lower mold 1 and the upper mold 2, and an inner mold core 6 is provided in the lower mold 1, and a cavity is formed between the inner mold core 6 and the outer mold body 5, and the shape of the cavity is the same as the outer shape of the motor rotor to be produced.

[0038] A plurality of connecting blocks 3 are fixedly installed on the side walls of the lower mold 1 and the upper mold 2, and a connecting bolt 4 is threadedly connected between each two connecting blocks 3 corresponding to the upper and lower positions. With the cooperation of the plurality of connecting blocks 3 and the connecting bolts 4, the installation of the lower mold 1 and the upper mold 2 can be positioned, and the stability of the connection between the two can be guaranteed. An air duct 8 is provided on the inner mold core 6, and the air duct 8 is used to discharge gas during the molding process. A pouring gate 7 that is interconnected with the mold cavity is provided on the outer mold body 5, and the pouring gate 7 is used to pour molten aluminum liquid into the mold cavity for molding the motor rotor. A corresponding number of air outlet holes can be set on the outer mold body 5 according to the existing technology. At the same time, the reasonable setting of risers and other operations on the outer mold body 5 are also existing technologies, so they will not be elaborated here.

[0039] It also includes a sliding member 9, which is slidably set on the upper mold 2, and the sliding member 9 matches the shape of the cavity. The cross-section of the sliding member 9 is the same as the cross-section shape of the motor rotor after molding, and the height of the sliding member 9 is greater than or equal to the depth of the cavity. Through the design of the sliding member 9, before the motor rotor is cast, the sliding member 9 can be used to move up and down in the cavity to polish the surface of the cavity, making the surface of the cavity smoother, thereby reducing the possibility of sand holes on the casting surface and effectively improving the quality of the casting.

[0040] A support plate 25 is fixedly mounted on the side wall of the upper mold 2, and a motor 26 is fixedly mounted on the support plate 25. The output end of the motor 26 is fixedly connected to a screw rod 27 that rotates with the support plate 25, and an L-shaped rod that is fixedly connected to the sliding member 9 is threadedly mounted on the screw rod 27. Under the cooperation of the screw rod 27 and the L-shaped rod, the position of the sliding member 9 in the mold cavity can be adjusted by the operation of the motor 26, so that it can move up and down in the mold cavity to complete the polishing process of the mold cavity surface. At the same time, during the casting process, the position of the bottom of the sliding member 9 can be used to adjust the height of the molded casting;

[0041] When the height of the castings produced is consistent, a through groove is opened on the upper mold 2, and the through groove is interconnected with the cavity. At the same time, the shape of the through groove is consistent with the cavity, and the through groove and the sliding member 9 are sealed and slidably matched. At this time, when the casting is produced, the bottom of the sliding member 9 is located at the bottom of the through groove, which can ensure that the height of the casting is consistent with the height of the cavity.

[0042] A cavity is provided in the sliding member 9, an outer groove 10 is provided on the side wall of the sliding member 9, and an inner groove 11 corresponding to the position of the outer groove 10 is provided on the inner wall of the sliding member 9, and a plurality of spray holes 12 are provided on the outer groove 10 and the inner groove 11. An addition port is provided on the side wall of the sliding member 9, and a sealing plug is clamped on the addition port. The end of the sealing plug away from the sliding member 9 is consistent with the curvature of the surface of the sliding member 9. Under the design of the addition port, it can be used to add a release agent into the cavity, and then the release agent is evenly sprayed in the cavity using the spray hole 12, which can effectively improve the demolding effect of subsequent castings. The cooperation of the inner groove 11 and the outer groove 10 is used to ensure that the release agent sprayed from the spray hole 12 can smoothly adhere to the cavity surface.

[0043] The seal 13 is slidably arranged in the cavity, and the thickness of the seal 13 is greater than the diameter of the nozzle hole 12. The seal 13 is composed of an outer seal and an inner seal. The outer seal corresponds to the position of the outer groove 10, and the inner seal corresponds to the position of the inner groove 11. Multiple springs 24 are installed at the bottom of the outer seal and the inner seal. The design of the seal 13 is used to control the switching conditions of the multiple nozzle holes 12. The elastic force of the spring 24 is used to maintain the closing effect of the nozzle hole 12 when the seal 13 is not subjected to external force.

[0044] The pressure regulating member 17 is sealed and slidably arranged in the cavity, and the pressure regulating member 17 is located at the upper end of the sealing member 13. The position change of the pressure regulating member 17 is used to regulate the pressure in the cavity. A plurality of fixed rods 18 that are sealed and slidably matched with the sliding member 9 are fixedly installed on the top of the pressure regulating member 17, and a disc 19 is fixedly installed between the tops of the plurality of fixed rods 18. The cooperation between the disc 19 and the plurality of fixed rods 18 is used to control the position of the pressure regulating member 17 in the cavity. When the release agent is injected into the cavity, the seal 13 is first moved down in the cavity and aligned with the nozzle hole 1. 2 positions are staggered, at this time, multiple spray holes 12 are in an open state, and then the motor 26 is operated to move the slide 9 downward in the cavity, and at the same time, the pressure regulating part 17 is moved downward in the cavity, so that the release agent in the cavity can be sprayed out from the spray holes 12, so that the slide 9 completes the coating of the release agent during the downward movement. At the same time, since there is a certain distance between the inner groove 11 and the outer groove 10 and the bottom of the slide 9, the coating of the release agent is carried out after the slide 9 grinds the cavity surface, which can improve the coating effect of the release agent.

[0045] The bottom of the cavity is open, and a sealing plate is clamped at the bottom of the cavity. The connection between the sealing plate and the bottom of the cavity can be interference fit. A plurality of absorption ports 20 are provided on the sealing plate. A connecting ring 14 is clamped on the sealing member 13, and a plurality of sealing columns 21 with sealing and sliding connections with the corresponding absorption ports 20 are fixedly installed at the bottom of the connecting ring 14. The sealing columns 21 are designed to open and close the absorption ports 20. When the release agent is applied, the sealing columns 21 seal the absorption ports 20, so that the release agent can be effectively sprayed out from the spray hole 12. After the release agent is applied, the pressure regulating member 17 is in a lower position in the cavity. At this time, if the sealing member 17 is closed, the pressure regulating member 17 can be opened and closed. Part 13 closes the spray hole 12, and moves the connecting ring 14 upward to release the seal on the absorption port 20. Then, while keeping the sliding part 9 stationary, the pressure regulating part 17 moves upward in the cavity. The negative pressure formed in the cavity can be used to suck the debris and impurities that fall off during the grinding process into the cavity from the absorption port 20, so as to avoid the adverse effects of these debris on the subsequent casting molding. In order to prevent the debris sucked into the cavity through the absorption port 20 from falling, the upper surface of the sealing plate can be set to a cone, and the absorption port 20 can be located in the middle position of the sealing plate. In this way, the conical design can be used to store the debris sucked into the cavity at a position away from the absorption port 20.

[0046] After the debris is sucked away, the slide 9 is moved upward and reset. During this process, the contact between the slide 9 and the cavity surface can evenly spread the release agent coated on the cavity surface, further improving the subsequent demolding effect. When the slide 9 is moved to the outside of the upper mold 2, the sealing plate can be removed from the bottom of the cavity, the sucked debris can be collected, and the cavity can be cleaned.

[0047] The dimensions of the outer seal, the connecting ring 14 and the inner seal after being assembled match the cavity. A plurality of blocks 22 are fixedly installed on the inner and outer side walls of the connecting ring 14. A plurality of slots 23 are provided on the side walls of the outer seal and the inner seal, which are engaged with the corresponding blocks 22. Through the cooperation of the slots 23 and the blocks 22, the connecting ring 14 can be moved down and contact the seal 13 and after being engaged in place, the seal 13 is driven to move down at the same time, so that the spray hole 12 can be opened. When the connecting ring 14 moves up, the spring 24 at the bottom of the seal 13 can make the seal 13 move up and reset to close the spray hole 12. After that, the connecting ring 14 continues to move up and separates from the seal 13 and separates the sealing column 21 from the absorption port 20. Subsequently, the upward movement of the pressure regulating piece 17 can be used to make the absorption port 20 collect the debris.

[0048] The top of the connecting ring 14 is fixedly installed with multiple connecting rods 15 that are sealed and slidably connected to the sliding member 9, and the multiple connecting rods 15 are all sealed and slidably connected to the pressure regulating member 17. A fixed disk 16 is fixedly installed between the tops of the multiple connecting rods 15. The upper end of the L-shaped rod is fixedly installed with a mounting plate 28, and motor 2 29 and motor 3 31 are fixedly installed on the mounting plate 28. The output end of motor 29 is fixedly connected to screw rod 2 30, and the output end of motor 31 is fixedly connected to screw rod 3 32. Screw rod 2 30 is threadedly connected to the disc 19, and screw rod 2 30 is slidably matched with the fixed disk 16. Screw rod 3 32 is threadedly connected to the fixed disk 16, and screw rod 3 32 is slidably matched with the disc 19.

[0049] The length of screw rod 1 27 is greater than the height of sliding member 9. A controller is fixedly mounted on the side wall of support plate 25, and the controller is electrically connected to motor 1 26, motor 2 29 and motor 3 31. The design of the controller facilitates the control of the working conditions of motor 1 26, motor 2 29 and motor 3 31 according to production needs. Motor 1 26, motor 2 29 and motor 3 31 can all adopt ACM6004M2H model servo motors, and the controller can specifically adopt KV-16AT model controller.

[0050] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A motor rotor forming mold, comprising an upper mold (2) mounted on a lower mold (1), wherein both the lower mold (1) and the upper mold (2) are provided with an outer mold body (5), and an inner mold core (6) is provided in the lower mold (1), and a mold cavity is formed between the inner mold core (6) and the outer mold body (5), characterized in that: Also includes: A sliding member (9), wherein the sliding member (9) is slidably arranged on the upper mold (2), and the sliding member (9) matches the shape of the mold cavity, a cavity is provided in the sliding member (9), an outer groove (10) is provided on the side wall of the sliding member (9), and an inner groove (11) corresponding to the position of the outer groove (10) is provided on the inner wall of the sliding member (9), and a plurality of spray holes (12) are provided on the outer groove (10) and the inner groove (11); A sealing member (13), wherein the sealing member (13) is slidably disposed in the cavity, and the thickness of the sealing member (13) is greater than the diameter of the spray hole (12); the bottom of the cavity is open, and a sealing plate is clamped to the bottom of the cavity, and a plurality of absorption ports (20) are provided on the sealing plate; a connecting ring (14) is clamped to the sealing member (13), and a plurality of sealing columns (21) are fixedly mounted on the bottom of the connecting ring (14) and are sealingly and slidably connected to the corresponding absorption ports (20); the position change of the sealing member (13) and the connecting ring (14) is used to control the opening and closing of the spray hole (12) and the absorption port (20); A pressure regulating member (17), wherein the pressure regulating member (17) is sealingly and slidably disposed in the cavity, and the pressure regulating member (17) is located at the upper end of the sealing member (13), and a position change of the pressure regulating member (17) is used to regulate the pressure in the cavity; A plurality of connecting rods (15) are fixedly mounted on the top of the connecting ring (14) and are sealingly and slidingly connected to the sliding member (9), and the plurality of connecting rods (15) are all sealingly and slidingly connected to the pressure regulating member (17), a fixed disk (16) is fixedly mounted between the tops of the plurality of connecting rods (15), a plurality of fixing rods (18) are fixedly mounted on the top of the pressure regulating member (17) and are sealingly and slidingly matched with the sliding member (9), and a disk (19) is fixedly mounted between the tops of the plurality of fixing rods (18), a support plate (25) is fixedly mounted on the side wall of the upper mold (2), and a motor 1 (26) is fixedly mounted on the support plate (25), an output end of the motor 1 (26) is fixedly connected to a screw rod 1 (27) that is rotationally matched with the support plate (25), and an L-shaped rod fixedly connected to the sliding member (9) is threadedly mounted on the screw rod 1 (27).

2. The motor rotor forming die according to claim 1, characterized in that: A plurality of connecting blocks (3) are fixedly mounted on the side walls of the lower mold (1) and the upper mold (2), and a connecting bolt (4) is threadedly connected between each two corresponding connecting blocks (3) at upper and lower positions. An air vent (8) is provided on the inner mold core (6), and a pouring port (7) communicating with the mold cavity is provided on the outer mold body (5).

3. The motor rotor forming die according to claim 1, characterized in that: The seal (13) is composed of an outer seal and an inner seal. The outer seal corresponds to the outer groove (10) and the inner seal corresponds to the inner groove (11). A plurality of springs (24) are installed at the bottom of the outer seal and the inner seal. The size of the outer seal, the connecting ring (14) and the inner seal after being assembled matches the cavity.

4. The motor rotor forming die according to claim 3, characterized in that: A plurality of clamping blocks (22) are fixedly mounted on the inner and outer side walls of the connecting ring (14), and a plurality of clamping grooves (23) that are clamped with corresponding clamping blocks (22) are provided on the side walls of the outer sealing member and the inner sealing member.

5. The motor rotor forming die according to claim 1, characterized in that: The upper end of the L-shaped rod is fixedly mounted with a mounting plate (28), and a motor 2 (29) and a motor 3 (31) are fixedly mounted on the mounting plate (28), the output end of the motor 2 (29) is fixedly connected with a screw rod 2 (30), and the output end of the motor 3 (31) is fixedly connected with a screw rod 3 (32), the screw rod 2 (30) is threadedly connected to the disc (19), and the screw rod 2 (30) is slidably matched with the fixed disc (16), the screw rod 3 (32) is threadedly connected to the fixed disc (16), and the screw rod 3 (32) is slidably matched with the disc (19).

6. The motor rotor forming die according to claim 1, characterized in that: The length of the screw rod 1 (27) is greater than the height of the sliding member (9), and a controller is fixedly installed on the side wall of the support plate (25), and the controller is electrically connected to the motor 1 (26), the motor 2 (29) and the motor 3 (31).

Images