A casting device based on motor base machining and a casting process thereof

Abstract

The application relates to the technical field of metal casting, and particularly discloses a casting device based on motor frame machining and a casting process thereof, which comprises a casting mechanism arranged on the inner side of a frame and used for casting a motor frame, the casting mechanism comprises a connecting frame and a base, and the bottom of the connecting frame is provided with an upper die seat fixed through bolts, and the inside of the upper die seat is provided with an upper die body in a detachable manner. The first auxiliary assembly and the second auxiliary assembly are matched to block the space between the blocking ring, the lower die seat and the upper die seat, so that the gas in the space around the upper die body and the lower die body is extracted, the contact between oxygen and aluminum liquid is reduced, the generation of an aluminum alloy oxidation film is reduced, the first auxiliary assembly and the second auxiliary assembly are positioned through the positioning assembly, the embedding of the blocking ring and the limiting groove is positioned, the stability of the blocking is improved, the stability of the embedding of the upper die body and the lower die body is improved, and the quality of the motor frame casting is improved.

Description

Technical Field

[0001] This invention relates to the field of metal casting technology, specifically to a casting device and casting process based on the machining of motor bases. Background Technology

[0002] Metal casting equipment typically injects molten metal into a mold and shapes the metal through the fitting and separating of the mold. For example, casting motor bases usually involves pouring molten aluminum alloy into the mold, then cooling and demolding for casting. During the casting process, the molten aluminum alloy reacts with oxygen in the air at high temperatures, forming a thin film of aluminum oxide. This film can form in a very short time, and because its melting point is much higher than that of aluminum alloy, it is very stable. Its density is also slightly higher than that of molten aluminum, making it easy to suspend in the molten aluminum and difficult to aggregate and separate. As a result, during the casting process, the aluminum oxide film on the surface can fold into layers and be drawn into the molten aluminum alloy, causing quality problems in the aluminum alloy casting.

[0003] A casting apparatus for a new energy vehicle motor housing, disclosed in CN118253717B, addresses the following issues in its background: Existing motor housing casting apparatuses are inconvenient for detecting common damage problems within the mold, including breakage or fracture of parts with internal holes and grooves. Furthermore, after casting, due to the residual metal film and dust impurities inside the casting mold during the casting process, the casting mold must be cleaned before re-casting the motor housing, which is inconvenient and involves complicated preparation work, greatly affecting the casting efficiency of the motor housing.

[0004] Based on existing technologies, the following problems exist:

[0005] Existing casting equipment for casting motor bases typically has an open design between the upper and lower mold bodies, making it difficult to extract air between them. This results in a thin aluminum alloy film forming on the surface of the molten aluminum alloy, which affects the quality of the motor base. To address this issue, a casting equipment and casting process based on motor base machining is proposed. Summary of the Invention

[0006] To overcome the shortcomings of the prior art, the present invention provides a casting device and casting process based on motor base machining, which facilitates the extraction of air between the upper mold body and the lower mold body, thereby avoiding the aluminum alloy film generated on the surface of the aluminum alloy melt from affecting the quality of the motor base, and facilitates the casting of motor bases of different sizes.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a casting device based on motor base machining, comprising a body, a frame disposed on one side of the top of the body, and a hydraulic rod fixedly disposed on the top of the frame, wherein the telescopic shaft of the hydraulic rod extends to the inner side of the frame, and further comprising a casting mechanism disposed on the inner side of the frame for casting the motor base, the casting mechanism comprising:

[0008] A connecting frame is fixedly installed at the bottom of the hydraulic rod telescopic shaft. The bottom of the connecting frame is fixed with an upper mold base by bolts. The upper mold body is detachably installed inside the upper mold base.

[0009] The base is fixedly installed on the bottom inner wall of the frame. The top of the base is fixedly provided with a lower mold base that is adapted to the upper mold base. The lower mold base is detachably provided with a lower mold body that is adapted to the upper mold body. The upper mold body and the lower mold body are fitted together to cast the motor base. The lower mold base is provided with a first auxiliary component and a second auxiliary component respectively, located on the outside of the lower mold body and the bottom of the upper mold base, located on the outside of the upper mold body, to seal between the upper mold body and the lower mold body.

[0010] Furthermore, the first auxiliary component includes:

[0011] The movable groove is opened on the top of the lower mold base and located on the outside of the lower mold body. The bottom inner wall of the movable groove is fixedly provided with a first electromagnet, and the inner wall of the movable groove is fitted with a second electromagnet. The side of the first electromagnet and the second electromagnet that are close to each other are the same magnetic poles. Both the first electromagnet and the second electromagnet are designed in a ring shape.

[0012] A retaining ring is fixedly mounted on the top of the second electromagnet and extends to the top of the lower mold base. The second electromagnet cooperates with the upper end of the inner wall of the movable groove to prevent the retaining ring from disengaging from the movable groove. A spring is sleeved on the outer wall of the retaining ring between the second electromagnet and the top inner wall of the movable groove so that the retaining ring has a downward tendency to move.

[0013] Furthermore, the upper end of the inner wall of the movable groove is designed to bulge inward, so that while the second electromagnet moves along the inner wall of the movable groove, the upper end of the inner wall of the movable groove limits the movement of the second electromagnet.

[0014] Both sides of the inner wall of the protruding part of the movable groove are fixedly fitted with first sealing rings arranged at intervals to seal the gap between the retaining ring and the movable groove.

[0015] Furthermore, the second auxiliary component includes:

[0016] A limiting seat is fixedly installed at the bottom of the upper mold base. The limiting seat has a ring-shaped design, and the inner wall of the limiting seat is sleeved on the outer side of the upper mold body. The bottom of the limiting seat has a limiting groove that matches the retaining ring, so that the retaining ring can be inserted into the limiting groove, thereby sealing the upper mold body and the lower mold body. Positioning components for positioning the retaining ring and the limiting groove are provided at the top corners of the upper mold base and the lower mold base.

[0017] A sealing ring is fixedly fitted onto the outer wall of the upper mold body;

[0018] The second sealing ring is fixedly sleeved on both sides of the inner wall of the limiting groove to seal between the retaining ring and the limiting groove after the retaining ring is inserted into the limiting groove.

[0019] Furthermore, the positioning component includes:

[0020] The lower positioning hole is opened at the top corner of the lower mold base, and the inner wall of the lower positioning hole is fixedly fitted with a lower positioning sleeve extending to the bottom of the lower mold base.

[0021] The upper positioning hole is opened at the top corner of the upper mold base. The inner wall of the upper positioning hole is fixedly fitted with an upper positioning sleeve extending to the top of the upper mold base. The inner wall of the upper positioning sleeve is fixedly fitted with a positioning rod extending to the bottom of the lower positioning sleeve, thereby limiting the fitting of the upper mold base and the lower mold base, and positioning the fitting of the retaining ring and the limiting groove.

[0022] Furthermore, the positioning component also includes:

[0023] The lower positioning plate is sleeved on the outer wall of one end of the lower positioning sleeve located at the bottom of the lower mold base. The top of the lower positioning plate is fixed with a ring array of lower positioning components, so as to fix the lower mold body on the top of the lower positioning plate through the lower positioning components, thereby positioning the lower mold body.

[0024] An upper positioning plate is fitted onto the outer wall of the upper positioning sleeve located at the top of the upper mold base. The bottom of the upper positioning plate is fixed with an upper positioning component arranged in a ring array to fix the upper mold body to the bottom of the upper positioning plate, thereby limiting the position of the upper mold body. The center points of the upper positioning component and the lower positioning component arranged in a ring array are vertically aligned. Nuts are threaded onto the outer wall of the lower positioning sleeve located at the bottom of the lower mold base and the outer wall of the upper positioning sleeve located at the top of the upper mold base to fix the lower positioning plate and the upper positioning plate respectively. The bottom of the lower mold base and the top of the upper mold base are respectively provided with a lower positioning groove and an upper positioning groove for installing the lower positioning component and the upper positioning component.

[0025] Furthermore, the top of the lower positioning sleeve is located inside the lower positioning hole, and the bottom of the upper positioning sleeve is located inside the upper positioning hole. The lower positioning sleeve and the upper positioning sleeve are vertically aligned, and the inner wall diameters of the lower positioning sleeve and the upper positioning sleeve are the same.

[0026] Furthermore, the top of the lower mold base and the upper mold base are respectively provided with a lower mounting through groove and an upper mounting through groove for respectively fitting the upper mold body and the lower mold body, and the lower mounting through groove and the upper mounting through groove are respectively connected to the lower positioning groove and the upper positioning groove for installing the upper mold body and the lower mold body;

[0027] The connecting frame is designed in a bent shape to leave space between the inner side of the connecting frame and the top of the upper mold base;

[0028] The base is designed in a bent shape so that the inner side of the base has space for the positioning rod to move.

[0029] Furthermore, the top of the upper mold body is provided with an installation hole, and an installation sleeve is fixedly fitted on the inner wall of the installation hole. The bottom of the installation sleeve is sealed, and a discharge nozzle, an air inlet, and a nozzle are fixedly provided on the bottom of the installation sleeve and inside the installation hole. The air inlet and the nozzle are respectively located on both sides of the discharge nozzle. The top of the discharge nozzle, the air inlet, and the nozzle are respectively provided with a conveying pipe, a first guide pipe, and a second guide pipe extending into the installation sleeve. The conveying pipe, the first guide pipe, and the second guide pipe extend to the inner side of the connecting frame.

[0030] A heating coil is fixedly fitted between the outer wall of the mounting sleeve and the inner wall of the mounting hole.

[0031] The present invention also provides a casting process for a casting device based on motor base machining. Using the aforementioned casting device based on motor base machining, the method includes the following steps:

[0032] S1: The upper mold base and the upper mold body are driven to move downward by the hydraulic rod, so as to seal the gap between the upper mold body and the lower mold body by the first auxiliary component and the second auxiliary component;

[0033] S2: After sealing the upper and lower mold bodies, the air between the upper and lower mold bodies is evacuated to limit the degree of contact between the molten aluminum and the air. Then, molten aluminum is introduced into the lower mold body.

[0034] S3: After the aluminum liquid is poured into the lower mold body, the upper mold body moves down and fits into the lower mold body, thereby casting the aluminum liquid to form the motor base.

[0035] This invention provides a casting device and casting process based on the machining of a motor base. Compared with the prior art, it has the following advantages:

[0036] 1. This invention uses a first auxiliary component and a second auxiliary component to seal the space between the retaining ring, the lower mold base, and the upper mold base, thereby facilitating the extraction of gas from the space surrounding the upper and lower mold bodies. This reduces the contact between oxygen and molten aluminum, thus reducing the formation of an aluminum alloy oxide film. The positioning component limits the first and second auxiliary components and positions the retaining ring and the limiting groove, improving the stability of the sealing and the stability of the fit between the upper and lower mold bodies, thereby improving the quality of the motor base casting.

[0037] 2. The present invention adjusts the support force on the retaining ring by using a first electromagnet and a second electromagnet, thereby adjusting the height of the retaining ring so that the upper mold base and the upper mold body move downward and press against and squeeze the retaining ring, thereby ensuring the stability of the retaining ring sealing during the downward movement of the lower mold body;

[0038] The spring causes the retaining ring and the second electromagnet to tend to move downwards, so that after the upper mold body and the lower mold body are separated, the space between the upper mold body and the lower mold body is exposed, thereby facilitating the removal of the cast motor base.

[0039] 3. By setting the discharge nozzle, nozzle and air inlet at the bottom of the upper mold body, the present invention facilitates the sealing of the first auxiliary component and the second auxiliary component, and after the gas in the sealed area is extracted, the discharge and air intake operations are performed, which is convenient for actual casting use.

[0040] 4. The present invention uses positioning components to position the upper mold base and the lower mold base, thereby positioning the retaining ring and the limiting groove, improving the stability of their fitting, and facilitating the positioning of the lower mold body and the upper mold body, thereby improving the stability of the upper mold body embedded in the lower mold body and improving the stability of the motor base casting.

[0041] 5. The upper and lower mounting slots facilitate the installation of the upper mold body and the lower mold body in the upper mold base and the lower mold base respectively, thereby making it easy to replace the upper mold body and the lower mold body of different sizes to meet the casting of motor bases of different sizes. It also makes it easy for the first auxiliary component and the second auxiliary component to block motor bases of different sizes, improving applicability, and without affecting the positioning of the positioning component.

[0042] The upper and lower positioning slots provide space for installing the lower and upper positioning components, thereby increasing the dimensions of the lower and upper mold bodies installed in the mounting through slots and upper mounting through slots. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall structure of the casting device based on the machining of a motor base according to the present invention.

[0044] Figure 2 This is a schematic diagram of the frame, hydraulic rod, and casting mechanism of the present invention;

[0045] Figure 3 This is a schematic diagram of the casting mechanism and hydraulic rod structure of the present invention;

[0046] Figure 4 This is a schematic cross-sectional view of the upper and lower mold bases of the present invention;

[0047] Figure 5 This is a schematic cross-sectional view of the lower mold base and retaining ring of the present invention;

[0048] Figure 6 This is an exploded view of the positioning component of the present invention;

[0049] Figure 7 This is a schematic diagram of the inverted structure of the lower positioning plate, upper positioning groove, upper positioning hole, upper positioning plate and upper positioning element of the present invention;

[0050] Figure 8 This is a schematic diagram of the interlocking structure of the upper and lower mold bodies of the present invention;

[0051] Figure 9 This is a schematic diagram of the separation structure of the upper mold body and the lower mold body of the present invention;

[0052] Figure 10 This is a cross-sectional view of the upper mold body, upper mold base, and heating coil of the present invention;

[0053] Figure 11 For the present invention Figure 10 A magnified structural diagram of A in the middle;

[0054] Figure 12 This is a schematic diagram of the structure of the first auxiliary component and the second auxiliary component of the present invention;

[0055] Figure 13 This is an exploded cross-sectional view of the upper and lower mold bases of the present invention.

[0056] The reference numerals in the above figures are as follows: 1. Body; 2. Casting mechanism; 3. Frame; 4. Hydraulic rod;

[0057] 20. Second auxiliary component; 21. Base; 22. Connecting frame; 23. Upper mold base; 24. Lower mold base; 25. Upper mold body; 26. Lower mold body; 28. First auxiliary component; 29. ​​Positioning component; 2901. Material conveying pipe; 2902. First guide pipe; 2903. Second guide pipe; 2904. Mounting hole; 2905. Air inlet; 2906. Material outlet; 2907. Nozzle; 2908. Mounting sleeve; 2909. Heating coil;

[0058] 201. Limiting seat; 202. Limiting groove; 203. Second sealing ring; 204. Sealing ring;

[0059] 231. Install through slots on the upper part;

[0060] 241. Lower mounting slot;

[0061] 281. Retaining ring; 282. First sealing ring; 283. First electromagnet; 284. Second electromagnet; 285. Moving groove;

[0062] 291. Positioning rod; 292. Lower positioning plate; 293. Lower positioning component; 294. Lower positioning hole; 295. Lower positioning sleeve; 296. Upper positioning groove; 297. Upper positioning sleeve; 298. Lower positioning groove; 299. Upper positioning hole; 2991. Upper positioning component; 2992. Upper positioning plate. Detailed Implementation

[0063] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0064] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 and Figure 9 A casting device based on motor base machining includes a machine body 1, a frame 3 disposed on one side of the top of the machine body 1, and a hydraulic rod 4 fixedly disposed on the top of the frame 3, wherein the telescopic shaft of the hydraulic rod 4 extends to the inner side of the frame 3. The machine body 1 is the casting machine body, and the hydraulic rod 4 is used to drive the upper mold base 23 and the upper mold body 25 to move vertically to complete the fitting of the upper mold body 25 and the lower mold body 26, thereby performing casting. The above are all prior art and will not be described in detail here. It also includes a casting mechanism 2 disposed inside the frame 3 for casting the motor base. The casting mechanism 2 includes:

[0065] The connecting frame 22 is fixedly installed at the bottom of the telescopic shaft of the hydraulic rod 4. The bottom of the connecting frame 22 is fixed with an upper mold base 23 by bolts. The upper mold body 25 is detachably installed inside the upper mold base 23.

[0066] The base 21 is fixedly installed on the bottom inner wall of the frame 3. The top of the base 21 is fixedly provided with a lower mold base 24 that is adapted to the upper mold base 23. The lower mold base 24 is detachably provided with a lower mold body 26 that is adapted to the upper mold body 25. The upper mold body 25 and the lower mold body 26 are fitted together to cast the motor base. The lower mold base 24 is provided with a first auxiliary component 28 and a second auxiliary component 20 respectively, which are located on the outside of the lower mold body 26 and the bottom of the upper mold base 23 is located on the outside of the upper mold body 25, so as to seal the space between the upper mold body 25 and the lower mold body 26.

[0067] In practice, the hydraulic rod 4 is activated, and the telescopic shaft of the hydraulic rod 4 drives the connecting frame 22 and the upper mold base 23 to move, thereby driving the upper mold body 25 to move so that the upper mold body 25 fits into the lower mold body 26, thereby casting the aluminum liquid in the lower mold body 26 to cast the motor base.

[0068] The molten aluminum used in the casting of motor bases is usually a liquid aluminum alloy.

[0069] Please see Figure 5 , Figure 12 and Figure 13 The first auxiliary component 28 includes:

[0070] The movable groove 285 is opened on the top of the lower mold base 24 and located on the outside of the lower mold body 26. The bottom inner wall of the movable groove 285 is fixedly provided with a first electromagnet 283, and the inner wall of the movable groove 285 is sleeved with a second electromagnet 284. The side of the first electromagnet 283 and the second electromagnet 284 that are close to each other are the same magnetic poles. Both the first electromagnet 283 and the second electromagnet 284 are designed in a ring shape.

[0071] A retaining ring 281 is fixedly disposed on the top of the second electromagnet 284 and extends to the top of the lower mold base 24. The second electromagnet 284 is engaged with the upper end of the inner wall of the movable groove 285 to prevent the retaining ring 281 from disengaging from the movable groove 285. A spring is sleeved on the outer wall of the retaining ring 281 between the second electromagnet 284 and the top inner wall of the movable groove 285 to give the retaining ring 281 a downward tendency.

[0072] The upper end of the inner wall of the movable groove 285 is designed to protrude inward, so that while the second electromagnet 284 moves along the inner wall of the movable groove 285, the upper end of the inner wall of the movable groove 285 limits the second electromagnet 284.

[0073] The inner walls of the protruding part of the movable groove 285 are fixedly fitted with first sealing rings 282 arranged at intervals to seal the gap between the retaining ring 281 and the movable groove 285.

[0074] Please see Figure 12 and Figure 13The second auxiliary component 20 includes:

[0075] The limiting seat 201 is fixedly installed at the bottom of the upper mold base 23. The limiting seat 201 is designed in a ring shape, and the inner wall of the limiting seat 201 is sleeved on the outer side of the upper mold body 25. The bottom of the limiting seat 201 is provided with a limiting groove 202 that matches the retaining ring 281, so that the retaining ring 281 can be inserted into the limiting groove 202, thereby sealing the space between the upper mold body 25 and the lower mold body 26. The top corners of the upper mold base 23 and the lower mold base 24 are provided with positioning components 29 for positioning the retaining ring 281 and the limiting groove 202.

[0076] The sealing ring 204 is fixedly sleeved on the outer wall of the upper mold body 25;

[0077] The second sealing ring 203 is fixedly sleeved on both sides of the inner wall of the limiting groove 202 to seal the space between the retaining ring 281 and the limiting groove 202 after the retaining ring 281 is inserted into the limiting groove 202.

[0078] In practical implementation, when the machine base is cast, the first electromagnet 283 and the second electromagnet 284 are first energized, causing a repulsive force to be generated on the side where the first electromagnet 283 and the second electromagnet 284 are close to each other. This repulsive force drives the second electromagnet 284 and the retaining ring 281 to move upward along the limiting groove 202. Then, the hydraulic rod 4 drives the upper mold base 23 and the upper mold body 25 to move downward a certain distance. At this time, the lower mold body 26 and the upper mold body 25 are not completely fitted, and the retaining ring 281 is inserted into the limiting groove 202, thereby sealing the space between the retaining ring 281, the lower mold base 24, and the upper mold base 23, thus controlling the upper mold. The space around the upper mold body 25 and the lower mold body 26 is sealed off. Then, the gas around the upper mold body 25 and the lower mold body 26 is extracted through the air inlet 2905 via the first conduit 2902 and the external suction pipe. This reduces the contact between oxygen and aluminum liquid, thereby reducing the formation of aluminum alloy oxide film and improving the quality of motor base casting. After the gas is extracted, the aluminum liquid is transported to the lower mold body 26 through the external aluminum liquid pipe 2901 and the discharge nozzle 2906. Then, the upper mold body 25 is driven to move downward by the hydraulic rod 4 to cast the aluminum liquid and form the motor base.

[0079] During the downward movement of the upper mold base 23 and the upper mold body 25, the positioning component 29 limits them, thereby improving the stability of the fitting of the upper mold body 25 and the lower mold body 26, thus improving the manufacturing quality of the motor base. It also positions the fitting of the retaining ring 281 and the limiting groove 202, improving the smoothness of the fitting, thereby improving the stability of the sealing.

[0080] The first sealing ring 282 and the second sealing ring 203 respectively seal the retaining ring 281, the moving groove 285, and the limiting groove 202, thereby improving the sealing performance between the retaining ring 281, the upper mold base 23 and the lower mold base 24, and facilitating the subsequent extraction of gas around the upper mold body 25 and the lower mold body 26.

[0081] When the upper mold 25 is embedded in the lower mold 26 and reaches the position for casting the motor base, the bottom of the sealing ring 204 is pressed against the top of the lower mold 26, thereby restricting the aluminum liquid from leaking out from the top of the upper mold 25 and avoiding affecting the quality of the motor base casting.

[0082] By limiting the upper end of the inner wall of the movable groove 285 to the second electromagnet 284, the retaining ring 281 is prevented from disengaging from the movable groove 285, which is convenient for practical use. The second electromagnet 284 is elastically supported by the spring. When the second electromagnet 284 and the first electromagnet 283 are de-energized, the retaining ring 281 and the second electromagnet 284 move downward under the action of the spring, so that after the upper mold body 25 and the lower mold body 26 are separated, the space between the upper mold body 25 and the lower mold body 26 is exposed, which makes it easy to remove the cast motor base.

[0083] When the upper mold base 23 and the upper mold body 25 move downward, the upper mold body 25 can be pressed against the retaining ring 281 and moved downward by controlling the magnitude of the repulsive force between the first electromagnet 283 and the second electromagnet 284, thereby ensuring the stability of the retaining ring 281 during the downward movement of the lower mold body 26.

[0084] Please see Figure 10 and Figure 11 The top of the upper mold body 25 is provided with a mounting hole 2904. The inner wall of the mounting hole 2904 is fixedly fitted with a mounting sleeve 2908. The bottom of the mounting sleeve 2908 is sealed. The bottom of the mounting sleeve 2908 and located inside the mounting hole 2904 are fixedly provided with a discharge nozzle 2906, an air inlet 2905 and a nozzle 2907. The air inlet 2905 and the nozzle 2907 are located on both sides of the discharge nozzle 2906. The top of the discharge nozzle 2906, the air inlet 2905 and the nozzle 2907 are respectively fixedly provided with a conveying pipe 2901, a first guide pipe 2902 and a second guide pipe 2903 extending into the mounting sleeve 2908. The conveying pipe 2901, the first guide pipe 2902 and the second guide pipe 2903 extend to the inner side of the connecting frame 22.

[0085] A heating coil 2909 is fixedly sleeved between the outer wall of the mounting sleeve 2908 and the inner wall of the mounting hole 2904.

[0086] In practice, the aluminum liquid is connected to the external aluminum liquid pipe through the discharge pipe to facilitate the discharge of aluminum liquid into the lower mold body 26 through the discharge nozzle 2906. This facilitates the delivery of aluminum liquid into the lower mold body 26 after the windbreak is completed between the lower mold base 24, the upper mold base 23 and the retaining ring 281, so as to facilitate casting after the air is evacuated.

[0087] The first conduit 2902 is connected to an external air intake pipe, which facilitates the discharge of gas in the sealed space through the air inlet 2905, thereby reducing the contact between oxygen and aluminum liquid, reducing the formation of aluminum alloy oxide film, and thus reducing the amount of aluminum alloy oxide film mixed in after casting, thereby improving the quality of the motor base.

[0088] By connecting the second conduit 2903 to an external solvent pipe, a solvent, such as zinc chloride, is sprayed onto the surface of the molten aluminum through the nozzle 2907 to isolate the molten aluminum from contact with oxygen and water vapor, thereby further improving the quality of the motor base casting.

[0089] A valve body is provided on the side wall of the discharge pipe, the first conduit 2902 and the second conduit 2903 near the discharge nozzle 2906, so as to prevent the aluminum liquid from entering the first conduit 2902, the discharge pipe and the second conduit 2903 during casting. By positioning the discharge nozzle 2906, the nozzle 2907 and the air inlet 2905 within the mounting hole 2904, the amount of burrs on the motor base after casting is reduced, thereby reducing the amount of subsequent grinding work. The installation sleeve 2908 is heated by the heating coil 2909, thereby heating the discharge pipe, thus preventing the aluminum liquid from solidifying and avoiding affecting the next casting use.

[0090] By positioning the discharge nozzle 2906, the nozzle 2907, and the air inlet 2905 at the bottom of the upper mold body 25, it is convenient to perform operations such as discharge and air intake after the upper mold body 25 enters the lower mold body 26, which is convenient for actual use.

[0091] Nozzle 2907, air inlet 2905 and discharge nozzle 2906 are all made of high temperature resistant material, which is a conventional technology in this field and will not be described in detail here;

[0092] The connecting frame 22 is designed in a bent shape so that there is space between the inner side of the connecting frame 22 and the top of the upper mold base 23;

[0093] The base 21 is designed in a bent shape so that the inner side of the base 21 has space for the positioning rod 291 to move.

[0094] Example 2: Please refer to Figure 6 and Figure 7 The technical difference between this embodiment and Embodiment 1 is that the positioning component 29 includes:

[0095] The lower positioning hole 294 is opened at the top corner of the lower mold base 24, and the inner wall of the lower positioning hole 294 is fixedly fitted with a lower positioning sleeve 295 extending to the bottom of the lower mold base 24.

[0096] The upper positioning hole 299 is opened at the top corner of the upper mold base 23. The inner wall of the upper positioning hole 299 is fixedly fitted with an upper positioning sleeve 297 extending to the top of the upper mold base 23. The inner wall of the upper positioning sleeve 297 is fixedly fitted with a positioning rod 291 extending to the bottom of the lower positioning sleeve 295, thereby limiting the fitting of the upper mold base 23 and the lower mold base 24, and positioning the fitting of the retaining ring 281 and the limiting groove 202.

[0097] Positioning component 29 also includes:

[0098] The lower positioning plate 292 is sleeved on the outer wall of one end of the lower positioning sleeve 295 located at the bottom of the lower mold base 24. The top of the lower positioning plate 292 is fixed with a ring array of lower positioning members 293, so as to fix the lower mold body 26 on the top of the lower positioning plate 292 through the lower positioning members 293, thereby positioning the lower mold body 26.

[0099] The upper positioning plate 2992 is sleeved on the outer wall of the upper positioning sleeve 297 located at the top of the upper mold base 23. The bottom of the upper positioning plate 2992 is fixed with an upper positioning member 2991 arranged in a ring array, so as to fix the upper mold body 25 to the bottom of the upper positioning plate 2992 through the upper positioning member 2991, thereby limiting the upper mold body 25. The center points of the upper positioning member 2991 and the lower positioning member 293 arranged in a ring array are vertically aligned. The outer wall of the lower positioning sleeve 295 located at the bottom of the lower mold base 24 and the outer wall of the upper positioning sleeve 297 located at the top of the upper mold base 23 are both threaded with nuts to fix the lower positioning plate 292 and the upper positioning plate 2992 respectively. The bottom of the lower mold base 24 and the top of the upper mold base 23 are respectively provided with a lower positioning groove 298 and an upper positioning groove 296 for installing the lower positioning member 293 and the upper positioning member 2991.

[0100] The top of the lower positioning sleeve 295 is located inside the lower positioning hole 294, and the bottom of the upper positioning sleeve 297 is located inside the upper positioning hole 299. The lower positioning sleeve 295 and the upper positioning sleeve 297 are vertically aligned, and the inner wall diameters of the lower positioning sleeve 295 and the upper positioning sleeve 297 are the same.

[0101] The lower mold base 24 and the upper mold base 23 are respectively provided with a lower mounting through groove 241 and an upper mounting through groove 231 for mounting the upper mold body 25 and the lower mold body 26, and the lower mounting through groove 241 and the upper mounting through groove 231 are respectively connected to the lower positioning groove 298 and the upper positioning groove 296 for mounting the upper mold body 25 and the lower mold body 26.

[0102] In specific implementation, when the upper mold base 23 and the upper mold body 25 move downward, they drive the upper positioning sleeve 297 and the positioning rod 291 to move downward along the inner wall of the lower positioning sleeve 295. Since the lower positioning sleeve 295 and the upper positioning sleeve 297 are vertically aligned and have the same inner wall diameter, the upper mold base 23 and the lower mold base 24 are positioned to position the retaining ring 281 and the limiting groove 202, thereby improving the stability of their engagement.

[0103] The lower mold body 26 and the upper mold body 25 are fixed to the lower positioning plate 292 and the upper positioning plate 2991 respectively by the lower positioning member 293 and the upper positioning member 2991, and the lower positioning plate 292 and the upper positioning plate 2992 are fixed to the outer walls of the lower positioning sleeve 295 and the upper positioning sleeve 297, thereby positioning the lower mold body 26 and the upper mold body 25 to improve the stability of the upper mold body 25 embedded in the lower mold body 26 and improve the stability of the motor base casting. Furthermore, the upper mounting slot 2... The upper mold base 23 and the lower mold base 241 are hollow at the top center of the upper mold base 23 and the lower mold base 24, which facilitates the installation of the upper mold body 25 and the lower mold body 26 in the upper mold base 23 and the lower mold base 24 respectively. This makes it easy to replace the upper mold body 25 and the lower mold body 26 of different sizes to meet the casting of motor bases of different sizes. It also makes it easy for the first auxiliary component 28 and the second auxiliary component 20 to block motor bases of different sizes, improving applicability, and without affecting the positioning of the positioning component 29.

[0104] The upper positioning groove 296 and the lower positioning groove 298 provide space for the lower mold base 24 and the upper mold base 23 to install the lower positioning component 293 and the upper positioning component 2991, thereby increasing the size of the lower mold body 26 and the upper mold body 25 installed in the lower mounting through groove 241 and the upper mounting through groove 231.

[0105] The upper positioning sleeve 297 and the lower positioning sleeve 295 are installed through the upper positioning hole 299 and the lower positioning hole 294 to avoid obstructing the fit between the upper mold base 23 and the lower mold base 24.

[0106] This invention also provides a casting process for a casting device based on motor base machining. The method includes the following steps:

[0107] S1: The upper mold base 23 and the upper mold body 25 are driven to move downward by the hydraulic rod 4, so as to seal the gap between the upper mold body 25 and the lower mold body 26 by the first auxiliary component 28 and the second auxiliary component 20. During this process, the movement of the upper mold base 23 is limited by the positioning component 29, thereby limiting the movement of the first auxiliary component 28 and the second auxiliary component 20, thereby improving the stability of the sealing barrier and facilitating the subsequent fitting and limiting of the upper mold body 25 and the lower mold body 26, thus improving the stability of casting.

[0108] S2: After sealing the upper mold body 25 and the lower mold body 26, the air between the upper mold body 25 and the lower mold body 26 is evacuated to reduce the air between the upper mold body 25 and the lower mold body 26, thereby limiting the degree of contact between the aluminum liquid and the air, thereby reducing the formation of the aluminum oxide film on the surface of the aluminum liquid, and reducing the amount of the aluminum oxide film that will fold into a layer and be rolled into the molten metal, thereby improving the quality of the aluminum alloy casting and improving the quality of the motor base. Then, the aluminum liquid is introduced into the lower mold body 26.

[0109] S3: After the aluminum liquid is introduced into the lower mold 26, the upper mold 25 is moved down and fitted into the lower mold 26, thereby casting the aluminum liquid to form the motor base. After casting is completed, the upper mold 25 is separated from the lower mold 26, and the cast motor base is clamped out by the staff for the next casting operation.

[0110] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0111] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0112] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A casting device based on motor base processing, comprising a body, a frame arranged on one side of the top of the body, and a hydraulic rod fixedly arranged on the top of the frame, and the telescopic shaft of the hydraulic rod extends to the inner side of the frame, characterized in that, Also include the casting mechanism for casting motor frame set in the frame inside, the casting mechanism includes: Connecting frame, fixedly provided on the bottom of the hydraulic rod telescopic shaft, the bottom of the connecting frame is fixedly provided with an upper die seat, and the inside of the upper die seat is detachably provided with an upper die body; Base, fixedly provided on the inner wall of the bottom of the frame, the top of the base is fixedly provided with a lower die seat matched with the upper die seat, the inside of the lower die seat is detachably provided with a lower die body matched with the upper die body, the upper die body and the lower die body are embedded to cast the motor frame, the inside of the lower die seat and the outside of the lower die body and the bottom of the upper die seat and the outside of the upper die body are respectively provided with a first auxiliary assembly and a second auxiliary assembly to block the upper die body and the lower die body; The first auxiliary assembly includes: Moving groove, provided on the top of the lower die seat and located outside the lower die body, the bottom inner wall of the moving groove is fixedly provided with a first electromagnet, and the inner wall of the moving groove is sleeved with a second electromagnet, the side of the first electromagnet and the second electromagnet away from each other is the same polarity magnetic pole, and the first electromagnet and the second electromagnet are annularly designed; The stop ring is fixedly provided on the top of the second electromagnet and extends to the top of the lower die seat, the second electromagnet is in abutting engagement with the upper end of the inner wall of the moving groove to limit the stop ring from being separated from the moving groove, and the outer wall of the stop ring and between the second electromagnet and the top inner wall of the moving groove is sleeved with a spring to make the stop ring have a downward moving trend; The second auxiliary assembly includes: Limiting seat, fixedly provided on the bottom of the upper die seat, the limiting seat is annularly designed, and the inner wall of the limiting seat is sleeved on the outside of the upper die body, the bottom of the limiting seat is provided with a limiting groove matched with the stop ring, so that the stop ring is inserted into the limiting groove to block the upper die body and the lower die body, and the top corner of the upper die seat and the lower die seat is provided with a positioning assembly for positioning the stop ring and the limiting groove; Sealing ring, fixedly sleeved on the outer wall of the upper die body; Second sealing ring, fixedly sleeved on both sides of the inner wall of the limiting groove to seal between the stop ring and the limiting groove after the stop ring is inserted into the limiting groove; The positioning assembly includes: Lower positioning hole, provided on the top corner of the lower die seat, the inner wall of the lower positioning hole is fixedly sleeved with a lower positioning sleeve extending to the bottom of the lower die seat; Upper positioning hole, provided on the top corner of the upper die seat, the inner wall of the upper positioning hole is fixedly sleeved with an upper positioning sleeve extending to the top of the upper die seat, and the inner wall of the upper positioning sleeve is fixedly sleeved with a positioning rod extending to the bottom of the lower positioning sleeve, so as to limit the embedding of the upper die seat and the lower die seat and position the embedding of the stop ring and the limiting groove; The positioning assembly further includes: Lower positioning disc, sleeved on the outer wall of one end of the lower positioning sleeve located at the bottom of the lower die seat, and the top of the lower positioning disc is fixedly provided with a lower positioning piece arranged in an annular array to fix the lower die body on the top of the lower positioning disc through the lower positioning piece, so as to position the lower die body. The upper positioning disc is sleeved on the outer wall of one end of the upper positioning sleeve located at the top of the upper die seat, the bottom of the upper positioning disc is fixedly provided with an annular array of upper positioning members, the upper positioning members are used to fix the upper die body at the bottom of the upper positioning disc, thereby limiting the upper die body, the center points of the annular array of upper positioning members and the lower positioning members are vertically aligned, the lower positioning sleeve is threadedly connected with a nut on the outer wall of one end of the bottom of the lower die seat and the outer wall of one end of the top of the upper die seat, thereby respectively fixing the lower positioning disc and the upper positioning disc, the bottom of the lower die seat and the top of the upper die seat are respectively provided with a lower positioning groove and an upper positioning groove for installing the lower positioning members and the upper positioning members; The inner wall upper end of the moving groove is designed to protrude inward, so that the second electromagnet moves along the inner wall of the moving groove while being limited by the inner wall upper end of the moving groove; The inner wall of the protruding position of the moving groove is fixedly sleeved with a first sealing ring arranged at intervals on both sides, so as to seal between the blocking ring and the moving groove; The top of the lower positioning sleeve is located in the lower positioning hole, the bottom of the upper positioning sleeve is located in the upper positioning hole, the lower positioning sleeve and the upper positioning sleeve are vertically aligned, and the inner walls of the lower positioning sleeve and the upper positioning sleeve have the same diameter; The top of the lower die seat and the top of the upper die seat are respectively provided with a lower installation through groove and an upper installation through groove for respectively sleeving the upper die body and the lower die body, and the lower installation through groove and the upper installation through groove are respectively communicated with the lower positioning groove and the upper positioning groove for installing the upper die body and the lower die body; The connecting frame is designed to be bent, so that a space is left between the inner side of the connecting frame and the top of the upper die seat; The base is designed to be bent, so that a space is left for the movement of the positioning rod on the inner side of the base; The top of the upper die body is provided with an installation hole, an installation sleeve is fixedly sleeved on the inner wall of the installation hole, the bottom of the installation sleeve is designed to be sealed, and a discharge nozzle, an air inlet nozzle and a nozzle are fixedly arranged on the bottom of the installation sleeve and located in the installation hole, and the air inlet nozzle and the nozzle are respectively located on both sides of the discharge nozzle, the top of the discharge nozzle, the air inlet nozzle and the nozzle is respectively fixedly provided with a material conveying pipe, a first conduit and a second conduit extending into the installation sleeve, and the material conveying pipe, the first conduit and the second conduit respectively extend into the inner side of the connecting frame; A heating coil is fixedly sleeved between the outer wall of the installation sleeve and the inner wall of the installation hole; The first electromagnet and the second electromagnet adjust the supporting force of the blocking ring, thereby adjusting the height of the blocking ring, so that the upper die seat and the upper die body move downward and tightly press the blocking ring, thereby ensuring the stability of the blocking ring during the downward movement of the lower die body; the spring makes the blocking ring and the second electromagnet have a downward movement tendency, so that the space between the upper die body and the lower die body is exposed after the subsequent separation of the upper die body and the lower die body, thereby facilitating the removal of the cast motor base.

2. A casting process based on a casting device machined on a motor frame, characterized in that, The motor base casting device of claim 1 comprises the following steps: S1: The upper die seat and the upper die body are driven to move downward by the hydraulic rod, so that the first auxiliary assembly and the second auxiliary assembly are used to block the upper die body and the lower die body; S2: After blocking the upper die body and the lower die body, air is extracted between the upper die body and the lower die body to limit the degree of contact of the aluminum liquid with air, and then the aluminum liquid is input into the lower die body; S3: After the aluminum liquid is input into the lower die body, the upper die body is moved downward and is embedded with the lower die body, so that the aluminum liquid is cast and formed to cast the motor frame.

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