Motor shell casting mold

Abstract

The utility model provides a motor shell casting mold, and belongs to the technical field of casting molds. The motor shell casting mold comprises a mold assembly and a fixing assembly, the mold assembly comprises a bottom plate, a half mold, a positioning column and an inner mold, the fixing assembly comprises a driving piece, a clamping pressing plate, a limiting block and a limiting rod, the driving piece is arranged at the top of the bottom plate, the clamping pressing plate is arranged at the end of the driving piece, and the limiting block is arranged on the bottom plate. Connecting plates are arranged on the outer sides of the half molds, the bottom plate, the half molds, the connecting plates, positioning columns, inner molds, driving pieces, clamping pressing plates, limiting blocks and limiting rods are arranged, the positioning columns position the positions of the two half molds, the accuracy of a cast motor shell is guaranteed, the driving pieces are used for driving the clamping pressing plates to clamp and press the connecting plates of the two half molds, and therefore the motor shell can be formed. The disassembly and assembly efficiency of the two half molds is greatly improved, use of a plurality of bolts is avoided, the disassembly and assembly time is saved, and therefore the situation that the bolts expand and are difficult to disassemble and assemble due to high temperature is avoided.

Description

Technical Field

[0001] The present application relates to the field of casting molds, and in particular to a motor casing casting mold. Background Art

[0002] The alternating electromotive force induced in the armature coil is converted into a DC electromotive force when it is led out from the brush end by the commutation action of the commutator and the brush. The direction of the induced electromotive force is determined by the right-hand rule, and the direction of the force on the conductor is determined by the left-hand rule. A DC motor is an electric motor that operates on a DC working voltage and is widely used in tape recorders, VCRs, DVD players, electric shavers, hair dryers, electronic watches, toys, etc. A DC motor is generally composed of a stator pole, a rotor, a commutator, a brush, a casing, a bearing, etc. The motor casing is generally formed in one piece through a mold to reduce errors and improve accuracy.

[0003] Announcement No. CN 219043646 U discloses a motor casing casting mold for a static pressure line. By inserting the slots opened at the bottom ends of the two molds into the inside of the plug rods on the bottom plate, the connection convenience and stability are increased, and it is not easy to be misaligned with each other, thereby increasing the product yield and reducing the subsequent polishing time. By opening the casting port at the top of a single outer mold, the connection is stable, and there will be no leakage of molten iron during pouring, thereby increasing the safety of use, facilitating demoulding, and preventing the casting port from breaking.

[0004] However, there are some defects in the above scheme: in the above scheme, multiple bolts are needed to fix the two half molds, but the fixing method of multiple bolts with nuts wastes time in disassembly and assembly, reduces the disassembly and assembly efficiency of the mold, and thus affects the removal of the cast motor housing, reduces the casting efficiency, and easily affects the direct contact with the mold, causing the bolts to expand due to heat, resulting in the threads easily biting each other, which will further cause disassembly and assembly. Utility Model Content

[0005] In order to make up for the above deficiencies, the present application provides a motor casing casting mold, aiming to improve the problems raised in the above background technology.

[0006] An embodiment of the present application provides a motor casing casting mold including a mold assembly and a fixing assembly.

[0007] The mold assembly includes a base plate, a half mold, a positioning column and an inner mold. The positioning column is arranged on the top of the base plate, the base plate is inserted on the surface of the positioning column, and the inner mold is located in the half mold.

[0008] The fixing assembly includes a driving member, a clamping plate, a limit block and a limit rod, the driving member is arranged on the top of the base plate, the clamping plate is arranged on the end of the driving member, a connecting plate is arranged on the outside of the half mold, the clamping plate is pressed against the connecting plate, the limit block is fixedly connected to the clamping plate, the limit rod is fixedly connected to the half mold, and the half mold slides through the limit block.

[0009] In a specific embodiment, the half mold is provided with a positioning groove, and the positioning column is matched with the positioning groove.

[0010] In the above implementation process, by arranging the positioning column and the positioning groove to be compatible, the half mold is inserted on the positioning column through the positioning groove to be positioned.

[0011] In a specific embodiment, a casting pipe is provided on the top of the half mold, and two half molds are symmetrically arranged.

[0012] In the above implementation process, a casting pipe is provided to cast molten iron into the half mold.

[0013] In a specific embodiment, the driving member includes a fixed plate, an internal threaded tube and a threaded rod, the fixed plate is fixedly connected to the base plate, the internal threaded tube is fixedly passed through the fixed plate, the threaded rod is threadedly passed through the internal threaded tube, and the clamping pressure plate is movably connected to the threaded rod.

[0014] In the above implementation process, by setting a fixed plate, an internal threaded tube and a threaded rod, the threaded rod is rotated, the threaded rod rotates and moves axially, the internal threaded tube provides a stable threaded connection, and the threaded rod drives the clamping plate to move.

[0015] In a specific embodiment, a hand wheel is provided at one end of the threaded rod away from the clamping plate.

[0016] In the above implementation process, by providing a hand wheel, it is convenient to drive the threaded rod to rotate by turning the hand wheel, which is convenient for operation.

[0017] In a specific embodiment, a guide rod is provided on one side of the clamping plate, and the guide rod slides through the fixing plate.

[0018] In the above implementation process, the guide rod is provided to guide the clamping plate to move stably in a straight line, thereby limiting the rotation during the thread transmission process.

[0019] In a specific embodiment, the inner wall of the clamping plate is provided with a bevel groove, the connecting plate is provided with a contact bevel, and the bevel groove fits the contact bevel.

[0020] In the above implementation process, by setting the inclined surface groove to fit the contact inclined surface, the clamping plate can more tightly press the two connecting plates together, thereby improving the sealing of the connection.

[0021] In a specific implementation manner, the limiting block is provided with a long hole, the limiting rod slides through the long hole, and the end of the long hole is trumpet-shaped.

[0022] In the above implementation process, a long hole is provided to allow the limit rod to pass through, thereby limiting the relative up and down movement of the limit rod and the limit block.

[0023] Beneficial effect: The present application provides a motor casing casting mold, which locates the two half molds by setting a base plate, half molds, connecting plates, positioning columns, inner molds, driving parts, clamping plates, limit blocks and limit rods, to ensure the accuracy of the cast motor casing. The driving parts drive the clamping plates to clamp the connecting plates of the two half molds, which greatly improves the disassembly and assembly efficiency of the two half molds, avoids the use of multiple bolts, saves disassembly and assembly time, and thus avoids the situation where the bolts expand and are difficult to disassemble and assemble due to high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the structure of the motor casing casting mold provided in the embodiment of the present application;

[0026] Figure 2 A schematic diagram of the structure of a mold assembly provided in an embodiment of the present application;

[0027] Figure 3 A schematic diagram of a half mold structure provided for an embodiment of the present application;

[0028] Figure 4 A schematic diagram of the structure of a driving member provided in an embodiment of the present application;

[0029] Figure 5 A schematic diagram of the clamping plate structure provided in an embodiment of the present application.

[0030] In the figure: 100-mold assembly; 110-base plate; 120-half mold; 121-connecting plate; 1211-contact slope; 122-positioning groove; 123-casting tube; 130-positioning column; 140-inner mold; 200-fixing assembly; 210-driving member; 211-fixing plate; 212-inner threaded tube; 213-threaded rod; 2131-handwheel; 220-clamping plate; 222-guide rod; 223-bevel groove; 240-limiting block; 241-long hole; 243-limiting rod. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0032] See also Figure 1-Figure 5 The present application provides a motor casing casting mold including a mold assembly 100 and a fixing assembly 200 .

[0033] See also Figure 1 , 2 and 3, the mold assembly 100 includes a base plate 110, a half mold 120, a positioning column 130 and an inner mold 140, the positioning column 130 is arranged on the top of the base plate 110, the base plate 110 is inserted into the surface of the positioning column 130, and the inner mold 140 is located in the half mold 120.

[0034] The half mold 120 is provided with a positioning groove 122 , and the positioning column 130 is matched with the positioning groove 122 . By setting the positioning column 130 and the positioning groove 122 to be matched, the half mold 120 is inserted on the positioning column 130 through the positioning groove 122 for positioning.

[0035] Specifically, a casting pipe 123 is provided at the top of the half mold 120 , and two half molds 120 are symmetrically arranged. The casting pipe 123 is provided to cast molten iron into the half mold 120 .

[0036] See also Figure 1 , 3 4, the fixing assembly 200 includes a driving member 210, a clamping plate 220, a limit block 240 and a limit rod 243, the driving member 210 is arranged on the top of the bottom plate 110, the clamping plate 220 is arranged at the end of the driving member 210, a connecting plate 121 is arranged on the outside of the half mold 120, the clamping plate 220 is pressed against the connecting plate 121, the limit block 240 is fixedly connected to the clamping plate 220, the limit rod 243 is fixedly connected to the half mold 120, and the half mold 120 slides through the limit block 240.

[0037] Among them, the driving member 210 includes a fixed plate 211, an internal threaded tube 212 and a threaded rod 213. The fixed plate 211 is fixedly connected to the base plate 110, the internal threaded tube 212 is fixedly penetrated through the fixed plate 211, the threaded rod 213 is threadedly penetrated through the internal threaded tube 212, and the clamping plate 220 is movably connected to the threaded rod 213. By setting the fixed plate 211, the internal threaded tube 212 and the threaded rod 213, the threaded rod 213 is rotated, the threaded rod 213 rotates and moves axially, the internal threaded tube 212 provides a stable threaded connection, and the threaded rod 213 drives the clamping plate 220 to move.

[0038] In this embodiment, a hand wheel 2131 is provided at one end of the threaded rod 213 away from the clamping plate 220. By providing the hand wheel 2131, it is convenient to rotate the hand wheel 2131 to drive the threaded rod 213 to rotate, thereby facilitating operation.

[0039] In a specific implementation, a guide rod 222 is provided on one side of the clamping plate 220, and the guide rod 222 slides through the fixed plate 211. By providing the guide rod 222, the clamping plate 220 is guided to move stably in a straight line, thereby limiting the rotation during the thread transmission process.

[0040] It should be noted that a bevel groove 223 is provided on the inner wall of the clamping plate 220, and a contact bevel 1211 is provided on the connecting plate 121. The bevel groove 223 fits the contact bevel 1211. By setting the bevel groove 223 to fit the contact bevel 1211, the clamping plate 220 can more tightly press the two connecting plates 121 together, thereby improving the sealing of the connection.

[0041] In a specific implementation, the limit block 240 is provided with a long hole 241, the limit rod 243 slides through the long hole 241, and the end of the long hole 241 is trumpet-shaped. The long hole 241 is provided to pass the limit rod 243 through to limit the relative up and down movement of the limit rod 243 and the limit block 240.

[0042] The working principle of the motor housing casting mold is as follows: when in use, first insert the two half molds 120 into the positioning column 130 through the positioning groove 122 for positioning, then turn the hand wheel 2131 to drive the threaded rod 213 to rotate, the threaded rod 213 rotates and moves axially, the internal threaded tube 212 provides a stable threaded connection, the threaded rod 213 drives the clamping plate 220 to move, and the inclined groove 223 of the clamping plate 220 fits the contact inclined surface 1211, so that the clamping plate 220 can more tightly press the two connecting plates 121. The butt joint improves the sealing of the connection. At the same time, the clamping plate 220 drives the limit block 240 to move. The limit rod 243 passes through the long hole 241 to limit the relative up and down movement of the limit rod 243 and the limit block 240, thereby limiting the upward movement of the half mold 120. When disassembling, the hand wheel 2131 is rotated in the opposite direction to remove the connection and fixation of the two half molds 120, which greatly improves the disassembly and assembly efficiency of the two half molds 120, avoids the use of multiple bolts, saves disassembly and assembly time, and thus avoids the situation where the bolts expand and are difficult to disassemble and assemble due to high temperature.

[0043] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A motor casing casting mold, characterized in that: include A mold assembly (100), the mold assembly (100) comprising a bottom plate (110), a half mold (120), a positioning column (130) and an inner mold (140), the positioning column (130) being arranged on the top of the bottom plate (110), the bottom plate (110) being inserted on the surface of the positioning column (130), and the inner mold (140) being located inside the half mold (120); A fixing assembly (200), the fixing assembly (200) comprising a driving member (210), a clamping plate (220), a limit block (240) and a limit rod (243), the driving member (210) being arranged on the top of the bottom plate (110), the clamping plate (220) being arranged on the end of the driving member (210), a connecting plate (121) being arranged on the outside of the half mold (120), the clamping plate (220) being pressed against the connecting plate (121), the limit block (240) being fixedly connected to the clamping plate (220), the limit rod (243) being fixedly connected to the half mold (120), and the half mold (120) slidingly passes through the limit block (240).

2. A motor casing casting mold according to claim 1, characterized in that: The half mold (120) is provided with a positioning groove (122), and the positioning column (130) is adapted to the positioning groove (122).

3. A motor casing casting mold according to claim 1, characterized in that: The top of the half mold (120) is connected to a casting pipe (123), and two half molds (120) are symmetrically arranged.

4. A motor casing casting mold according to claim 1, characterized in that: The driving member (210) comprises a fixing plate (211), an internally threaded tube (212) and a threaded rod (213); the fixing plate (211) is fixedly connected to the base plate (110); the internally threaded tube (212) is fixedly passed through the fixing plate (211); the threaded rod (213) is threadedly passed through the internally threaded tube (212); and the clamping plate (220) is movably connected to the threaded rod (213).

5. A motor casing casting mold according to claim 4, characterized in that: A hand wheel (2131) is provided at one end of the threaded rod (213) away from the clamping plate (220).

6. A motor casing casting mold according to claim 5, characterized in that: A guide rod (222) is provided on one side of the clamping plate (220), and the guide rod (222) slides through the fixing plate (211).

7. The motor casing casting mold according to claim 1, characterized in that: The inner wall of the clamping plate (220) is provided with an inclined groove (223), the connecting plate (121) is provided with a contact inclined surface (1211), and the inclined groove (223) fits the contact inclined surface (1211).

8. The motor casing casting mold according to claim 1, characterized in that: The limiting block (240) is provided with a long hole (241), the limiting rod (243) slides through the long hole (241), and the end of the long hole (241) is trumpet-shaped.

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