Motor rotor forming die

Abstract

The invention discloses a motor rotor forming mold, and relates to the technical field of motor rotor molds, the motor rotor forming mold comprises an upper mold mounted on a lower mold, outer mold bodies are arranged on the lower mold and the upper mold, an inner mold core is arranged in the lower mold, a cavity is formed between the inner mold core and the outer mold bodies, and the motor rotor forming mold further comprises a sliding piece, the sliding part is arranged on the upper mold in a sliding mode, the sliding part is matched with the cavity in shape, a cavity is formed in the sliding part, an outer groove is formed in the side wall of the sliding part, an inner groove corresponding to the outer groove in position is formed in the inner wall of the sliding part, and a plurality of spraying holes are formed in the outer groove and the inner groove. The mold cavity surface polishing device has the beneficial effects that the surface of a mold cavity can be polished before molding, the polished surface of the mold cavity is evenly coated with a mold release agent, meanwhile, chippings and impurities which fall off after polishing can be collected, and the molding quality of a casting and the subsequent mold release efficiency are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of motor rotor molds, and particularly to a motor rotor forming mold. Background Art

[0002] The motor rotor is the rotating part of the motor, used to convert electrical energy into mechanical energy. When casting large-sized and complex motor rotors, the rotor aluminum casting process is usually adopted 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] Due to the relatively complex shape of the motor rotor, in order to facilitate subsequent demolding, a release agent needs to be coated inside the mold before pouring the raw material. However, the currently used molds do not have the above function, and manual coating of the release agent is required, which leads to a reduction in production efficiency and the inability to ensure the uniformity of the release agent coating. Therefore, a motor rotor forming mold needs to be designed. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a motor rotor forming mold, which solves the problems put forward in the above background art.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A motor rotor forming mold includes an upper mold installed on a lower mold. Outer mold bodies are provided on both the lower mold and the upper mold, and an inner mold core is provided inside the lower mold. A cavity is formed between the inner mold core and the outer mold body. The mold further includes: A sliding member, which is slidably arranged on the upper mold and is matched with the shape of the cavity. A cavity is provided inside the sliding member. Outer grooves are formed on the side wall of the sliding member, and inner grooves corresponding to the positions of the outer grooves are formed on the inner wall of the sliding member. A plurality of spray holes are provided on both the outer grooves and the inner grooves; A sealing member, which is slidably arranged in the cavity, and the thickness of the sealing member is greater than the diameter of the spray holes. The bottom of the cavity is open, and a sealing plate is clamped at the bottom of the cavity. A plurality of absorption ports are formed on the sealing plate. A connecting ring is clamped on the sealing member, and a plurality of sealing columns fixedly installed at the bottom of the connecting ring are hermetically slidably connected to the corresponding absorption ports. The change in the positions of the sealing member and the connecting ring is used to control the opening and closing of the spray holes and the absorption ports; A pressure regulating member, which is hermetically slidably arranged in the cavity and is located above the sealing member. The change in the position of the pressure regulating member is used to regulate the pressure inside the cavity.

[0006] 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 every two connecting blocks corresponding to each other in the up-and-down positions. An air passage is formed in the inner mold core, and a pouring port communicating with the cavity is provided on the outer mold body.

[0007] Furthermore, the sealing member is composed of an outer sealing member and an inner sealing member. The outer sealing member corresponds to the outer groove in position, the inner sealing member corresponds to the inner groove in position, and a plurality of springs are installed at the bottoms of the outer sealing member and the inner sealing member. The size of the outer sealing member, the connecting ring, and the inner sealing member after being spliced matches the cavity.

[0008] Furthermore, a plurality of clamping blocks are fixedly installed on the inner and outer side walls of the connecting ring, and a plurality of clamping grooves engaged with the corresponding clamping blocks are provided on the side walls of the outer sealing member and the inner sealing member.

[0009] Furthermore, a plurality of connecting rods that are hermetically slidably connected to the sliding member are fixedly installed at the top of the connecting ring, and all the connecting rods are hermetically slidably connected to the pressure regulating member. A fixing plate is fixedly installed between the tops of the plurality of connecting rods, and a plurality of fixing rods that are hermetically slidably fitted with the sliding member are fixedly installed at the top of the pressure regulating member, and a disc is fixedly installed between the tops of the plurality of fixing rods.

[0010] Furthermore, a support plate is fixedly installed on the side wall of the upper mold, and a first motor is fixedly installed on the support plate. The output end of the first motor is fixedly connected to a first lead screw rotatably fitted with the support plate, and an L-shaped rod fixedly connected to the sliding member is threadedly installed on the first lead screw.

[0011] Furthermore, a mounting plate is fixedly installed at the upper end of the L-shaped rod, and a second motor and a third motor are fixedly installed on the mounting plate. The output end of the second motor is fixedly connected to a second lead screw, and the output end of the third motor is fixedly connected to a third lead screw. The second lead screw is threadedly connected to the disc and slidably fitted with the fixing plate, and the third lead screw is threadedly connected to the fixing plate and slidably fitted with the disc.

[0012] Furthermore, the length of the first lead screw is greater than the height of the sliding member, and a controller is fixedly installed on the side wall of the support plate, and the controller is electrically connected to the first motor, the second motor, and the third motor.

[0013] Compared with the existing technology, the advantages of the present invention are as follows: 1: By means of the sliding member that can slide along the cavity, the surface of the cavity can be polished before molding, making the surface of the cavity smoother, thereby improving the quality of the castings after molding.

[0014] 2: Through the cooperation of the seal and the pressure regulating component, during the process of polishing the surface of the cavity using the sliding component, the demolding agent can be simultaneously ejected from the spray holes to complete the coating treatment of the demolding agent inside the cavity, effectively improving the subsequent casting demolding efficiency.

[0015] 3: Through the cooperation of the connecting ring and the pressure regulating component, after the coating of the demolding agent is completed, the absorption port can collect the debris and impurities falling from the surface polishing of the cavity by the upward movement of the pressure regulating component, further improving the forming quality of the subsequent casting. Then, the coating of the demolding agent is evenly smeared by the upward movement of the sliding component, further improving the coating effect of the demolding agent.

[0016] In summary, the present invention can polish the surface of the cavity before forming, evenly coat the polished cavity surface with the demolding agent, and simultaneously collect the debris and impurities falling off after polishing, effectively improving the forming quality of the casting and the subsequent demolding efficiency. Brief Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a motor rotor forming die proposed by the present invention; Figure 2 It is Figure 1 the top view of Figure 3 It is Figure 2 the schematic structural diagram of the A-A section in Figure 4 It is Figure 3 the enlarged schematic structural diagram of part a in Figure 5 It is Figure 1 the schematic diagram of removing the structure at the sliding component; Figure 6 It is Figure 5 the enlarged schematic structural diagram of the structure at the upper die in Figure 7 It is Figure 5 the enlarged schematic structural diagram of the structure at the lower die in Figure 8 It is Figure 1 the enlarged schematic structural diagram of the structure at the sliding component in Figure 9 It is Figure 8 the schematic diagram of the structure after removing the sliding component; Figure 10 It is Figure 8 the schematic structural diagram of the sliding component in Figure 11 It is Figure 10 the schematic diagram of another perspective; Figure 12 It is Figure 9 the enlarged schematic structural diagram of the structure at the pressure regulating component in Figure 13 is Figure 9 an enlarged schematic view of the structure at the middle connecting rod; Figure 14 is Figure 9 an enlarged schematic view of the structure at the seal.

[0018] 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. air vent; 9. sliding part; 10. outer groove; 11. inner groove; 12. spray hole; 13. seal; 14. connecting ring; 15. connecting rod; 16. fixed disk; 17. pressure regulating part; 18. fixed rod; 19. disk; 20. absorption port; 21. sealing column; 22. clamping block; 23. clamping groove; 24. spring; 25. support plate; 26. motor 1; 27. lead screw 1; 28. mounting plate; 29. motor 2; 30. lead screw 2; 31. motor 3; 32. lead screw 3. Specific embodiments

[0019] Referring to Figures 1-14 , a motor rotor forming mold includes an upper mold 2 mounted on a lower mold 1. Outer mold bodies 5 are provided on both the lower mold 1 and the upper mold 2, and an inner mold core 6 is provided inside the lower mold 1. 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.

[0020] A plurality of connecting blocks 3 are fixedly installed on the side walls of both the lower mold 1 and the upper mold 2. Connecting bolts 4 are threadedly connected between every two corresponding connecting blocks 3 located up and down. 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 at the same time, the stability of their connection can be ensured. An air vent 8 is provided on the inner mold core 6, and the air vent 8 is used to discharge gas during the forming process. A pouring gate 7 communicating with the cavity is provided on the outer mold body 5, and the pouring gate 7 is used to pour molten aluminum liquid into the cavity for the forming process of the motor rotor. The corresponding number of air holes can be provided on the outer mold body 5 according to the prior art, and at the same time, the operation of reasonably setting risers and the like on the outer mold body 5 is also the prior art, so it will not be specifically described here.

[0021] It further includes a sliding part 9. The sliding part 9 is slidably arranged on the upper mold 2, and the sliding part 9 matches the shape of the cavity. The cross-section of the sliding part 9 is the same as the cross-sectional shape of the formed motor rotor, and the height of the sliding part 9 is greater than or equal to the depth of the cavity. Through the design of the sliding part 9, before the casting and forming of the motor rotor, the sliding part 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 appearing on the surface of the casting and effectively improving the quality of the casting.

[0022] On the side wall of the upper mold 2, a support plate 25 is fixedly installed, and a first motor 26 is fixedly installed on the support plate 25. The output end of the first motor 26 is fixedly connected to a first lead screw 27 that is rotationally matched with the support plate 25. A L-shaped rod fixedly connected to the sliding member 9 is threadedly installed on the first lead screw 27. With the cooperation of the first lead screw 27 and the L-shaped rod, the position of the sliding member 9 in the cavity can be adjusted by the operation of the first motor 26, enabling it to move up and down in the cavity to complete the grinding process of the cavity surface. At the same time, during the casting process, the height of the cast part after forming can be regulated by the position of the bottom of the sliding member 9. When the heights of the cast parts produced are the same, a through groove is opened on the upper mold 2, and the through groove communicates with the cavity. At the same time, the shape of the through groove matches that of the cavity, and the through groove is in sealed sliding fit with the sliding member 9. When producing the cast part at this time, if the bottom of the sliding member 9 is located at the bottom of the through groove, the height of the cast part can be ensured to be the same as that of the cavity.

[0023] A cavity is provided inside the sliding member 9. An outer groove 10 is opened on the side wall of the sliding member 9, and an inner groove 11 corresponding to the position of the outer groove 10 is opened on the inner wall of the sliding member 9. A plurality of spray holes 12 are provided on both the outer groove 10 and the inner groove 11. An adding port is provided on the side wall of the sliding member 9, and a sealing plug is snap-fitted on the adding port. The end of the sealing plug away from the sliding member 9 has the same curvature as the surface of the sliding member 9. With the design of the adding port, it can be used to put the release agent into the cavity. Then, the release agent is evenly sprayed into the cavity through the spray holes 12, which can effectively improve the demolding effect of the subsequent cast part. The cooperation of the inner groove 11 and the outer groove 10 is used to ensure that the release agent sprayed from the spray holes 12 can smoothly adhere to the surface of the cavity.

[0024] A sealing member 13 is slidably arranged in the cavity, and the thickness of the sealing member 13 is greater than the diameter of the spray holes 12. The sealing member 13 is composed of an outer sealing member and an inner sealing member. The outer sealing member corresponds to the position of the outer groove 10, and the inner sealing member corresponds to the position of the inner groove 11. A plurality of springs 24 are installed at the bottoms of both the outer sealing member and the inner sealing member. The design of the sealing member 13 is used to control the opening and closing of the plurality of spray holes 12. The elastic force of the springs 24 is used to keep the spray holes 12 closed when the sealing member 13 is not subjected to external force.

[0025] The pressure regulating member 17 is hermetically and slidably arranged in the cavity, and the pressure regulating member 17 is located above the seal member 13. The position change of the pressure regulating member 17 is used to regulate the pressure in the cavity. A plurality of fixing rods 18 that are hermetically and slidably matched with the sliding member 9 are fixedly installed at the top of the pressure regulating member 17, and a disc 19 is fixedly installed between the tops of the plurality of fixing rods 18. The cooperation between the disc 19 and the plurality of fixing rods 18 is used to control the position of the pressure regulating member 17 in the cavity. After the release agent is injected into the cavity, first let the seal member 13 move downward in the cavity and stagger with the position of the spray holes 12. At this time, the plurality of spray holes 12 are in an open state. Subsequently, the operation of the first motor 26 is used to make the sliding member 9 move downward in the mold cavity. At the same time, the pressure regulating member 17 moves downward in the cavity, so that the release agent in the cavity can be sprayed out from the spray holes 12, and the sliding member 9 can complete the coating process 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 sliding member 9, the coating of the release agent is carried out after the sliding member 9 grinds the surface of the mold cavity, which can improve the coating effect of the release agent.

[0026] 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 an interference fit. A plurality of absorption ports 20 are opened on the sealing plate. A connection ring 14 is clamped on the seal member 13, and a plurality of sealing columns 21 that are hermetically and slidably connected to the corresponding absorption ports 20 are fixedly installed at the bottom of the connection ring 14. The design of the sealing columns 21 is used to open and close the absorption ports 20. When the coating process of the release agent is carried out, the sealing columns 21 seal the absorption ports 20, so that the release agent can be effectively sprayed out from the spray holes 12. When the coating of the release agent is completed, at this time, the pressure regulating member 17 is in a lower position in the cavity. At this time, if the seal member 13 closes the spray holes 12 and the connection ring 14 moves upward to release the seal of the absorption ports 20, and then the pressure regulating member 17 moves upward in the cavity while keeping the sliding member 9 stationary, the negative pressure formed in the cavity can be used to suck the debris and impurities falling off during the grinding process from the absorption ports 20 into the cavity, which can avoid the adverse effects of this part of the debris on the subsequent casting molding. To prevent the debris sucked into the cavity through the absorption ports 20 from falling, the upper surface of the sealing plate can be set to a conical shape, and the absorption ports 20 are located in the middle of the sealing plate. In this way, the conical design can store the debris sucked into the cavity at a position far from the absorption ports 20.

[0027] After the suction of the debris is completed, the sliding member 9 moves upward to reset. During this process, the contact between the sliding member 9 and the surface of the mold cavity can evenly smear the release agent coated on the surface of the mold cavity, further improving the subsequent demolding effect. And when the sliding member 9 moves 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.

[0028] The dimensions of the outer seal, the connecting ring 14, and the inner seal after splicing match the cavity. A plurality of clamping blocks 22 are fixedly installed on the inner and outer side walls of the connecting ring 14, and a plurality of clamping grooves 23 that are clamped with the corresponding clamping blocks 22 are provided on the side walls of the outer seal and the inner seal. Through the cooperation of the clamping grooves 23 and the clamping blocks 22, when the connecting ring 14 moves downward and contacts and is clamped with the seal 13 in place, the seal 13 can be driven to move downward simultaneously. In this way, the spray holes 12 can be opened. When the connecting ring 14 moves upward, the spring 24 at the bottom of the seal 13 can cause the seal 13 to move upward and reset to close the spray holes 12. Then, when the connecting ring 14 continues to move upward and separates from the seal 13 and the sealing column 21 separates from the absorption port 20, the upward movement of the pressure regulating member 17 can be utilized to collect debris at the absorption port 20.

[0029] A plurality of connecting rods 15 that are hermetically and slidably connected to the sliding member 9 are fixedly installed at the top of the connecting ring 14, and a plurality of connecting rods 15 are hermetically and slidably connected to the pressure regulating member 17. A fixing plate 16 is fixedly installed between the tops of the plurality of connecting rods 15. The upper end of the L-shaped rod is fixedly installed with a mounting plate 28, and a second motor 29 and a third motor 31 are fixedly installed on the mounting plate 28. The output end of the second motor 29 is fixedly connected to a second lead screw 30, and the output end of the third motor 31 is fixedly connected to a third lead screw 32. The second lead screw 30 is threadedly connected to the disc 19 and is slidably matched with the fixing plate 16. The third lead screw 32 is threadedly connected to the fixing plate 16 and is slidably matched with the disc 19.

[0030] The length of the first lead screw 27 is greater than the height of the sliding member 9. A controller is fixedly installed on the side wall of the support plate 25, and the controller is electrically connected to the first motor 26, the second motor 29, and the third motor 31. The design of the controller facilitates controlling the working conditions of the first motor 26, the second motor 29, and the third motor 31 according to production needs. The first motor 26, the second motor 29, and the third motor 31 can all adopt servo motors of the ACM6004M2H model, and the controller can specifically adopt a controller of the KV-16AT model.

[0031] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention 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), wherein a mold cavity is formed between the inner mold core (6) and the outer mold body (5), and wherein: Also includes: A sliding member (9), the sliding member (9) being slidably disposed on the upper mold (2), and the sliding member (9) matches the shape of the mold cavity, a cavity being provided inside the sliding member (9), an outer groove (10) being provided on the side wall of the sliding member (9), and an inner groove (11) corresponding to the position of the outer groove (10) being provided on the inner wall of the sliding member (9), and a plurality of spray holes (12) being provided on both 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 on the bottom of the cavity, and 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) are fixedly mounted on the bottom of the connecting ring (14) and are sealingly and slidably connected to the corresponding absorption ports (20); the change in position 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) 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). The position change of the pressure regulating member (17) is used to regulate the pressure in the cavity.

2. A motor rotor forming mold according to claim 1, characterized in that: A plurality of connection blocks (3) are fixedly mounted on the side walls of the lower mold (1) and the upper mold (2); a connection bolt (4) is threadedly connected between each two corresponding connection 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 mold 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 to 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 mold according to claim 1, characterized in that: A plurality of connecting rods (15) sealingly and slidably connected to the sliding member (9) are fixedly mounted on the top of the connecting ring (14), and the plurality of connecting rods (15) are all sealingly and slidably connected to the pressure regulating member (17), a fixing plate (16) is fixedly mounted between the tops of the plurality of connecting rods (15), a plurality of fixing rods (18) sealingly and slidably matched to the sliding member (9) are fixedly mounted on the top of the pressure regulating member (17), and a disc (19) is fixedly mounted between the tops of the plurality of fixing rods (18).

6. The motor rotor forming die according to claim 5, characterized in that: 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); an output end of the motor (26) is fixedly connected to a screw rod (27) that is rotatably 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 (27).

7. The motor rotor forming die according to claim 6, characterized in that: A mounting plate (28) is fixedly mounted on the upper end of the L-shaped rod, and a second motor (29) and a third motor (31) are fixedly mounted on the mounting plate (28); a second screw rod (30) is fixedly connected to the output end of the second motor (29); a third screw rod (32) is fixedly connected to the output end of the third motor (31); the second screw rod (30) is threadedly connected to the disk (19), and the second screw rod (30) is slidably matched with the fixed disk (16); the third screw rod (32) is threadedly connected to the fixed disk (16), and the third screw rod (32) is slidably matched with the disk (19).

8. The motor rotor forming die according to claim 6, 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 mounted 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).

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