Polishing device for demoulding aluminum explosion-proof motor shell
By designing an automated grinding device that combines a screw and abrasive rod, the problem of high-temperature grinding of aluminum explosion-proof motor housings was solved, achieving safe and efficient inner wall grinding and avoiding the risk of burns.
Patent Information
- Application Number
- CN202520490102.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-20
AI Technical Summary
During the demolding process of aluminum explosion-proof motor housing, it is difficult to remove high-temperature burrs and edge residue, and manual grinding poses a risk of burns.
A device including a worktable and a grinding component was designed. It uses a combination of a screw, a twin-axis cylinder and a grinding rod to achieve automated grinding. The screw lifts and rotates to drive the grinding rod to fully grind the inner wall of the motor, replacing manual operation.
It improves grinding efficiency, avoids the risk of burns to operators, and achieves safe and efficient inner wall grinding.
Smart Images

Figure CN223863476U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of explosion-proof motor technology, and in particular to a grinding device for demolding aluminum explosion-proof motor housings. Background Technology
[0002] Molten aluminum is poured into a mold. After the aluminum solidifies, the motor housing is formed in one piece. The hot housing is then removed from the mold. Operators need to polish the ends and inner walls of the housing. After the housing has completely cooled, the burrs and edge residue will harden, making polishing more difficult. Therefore, it is necessary to polish away the relatively soft burrs while the housing is still hot. Although operators wear heat-resistant gloves, the working environment is limited, making the operation difficult and posing a risk of burning their arms. Utility Model Content
[0003] The purpose of this application is to provide a grinding device for demolding aluminum explosion-proof motor housings, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this application provides the following technical solution:
[0005] A grinding device for demolding aluminum explosion-proof motor housings includes a worktable and a grinding assembly mounted on the worktable. A retaining ring is fixedly installed at the center of the worktable surface. The grinding assembly includes a screw, a dual-axis cylinder, and a grinding rod. The screw is movably installed at the center of the worktable, and a mounting ring is fixedly installed at the top of the screw. The dual-axis cylinder is fixedly installed on the outer wall of the mounting ring, and the grinding rod is installed on the output end of the dual-axis cylinder. Two dual-axis cylinders are arranged, installed on both sides of the mounting ring, with the output ends of the two dual-axis cylinders facing the two sides of the screw respectively.
[0006] Preferably, an mounting plate is fixedly installed on the outer wall of the abrasive rod, and a fitting groove is opened at the output end of the dual-axis cylinder. The mounting plate is made of a magnetic plate, and the output end of the dual-axis cylinder is made of ferrous metal. One side of the mounting plate is adsorbed and installed inside the fitting groove.
[0007] Preferably, a threaded tube is fixedly installed at the center of the workbench, and the screw is threaded inside the threaded tube. A movable block is movably arranged below the workbench, and a bearing is installed on the bottom outer wall of the screw. The bottom of the screw is connected to the movable block via the bearing. A telescopic cylinder is fixedly installed on the workbench surface, with its output end passing through the workbench and facing downwards. The outer wall of the movable block is fixedly connected to the output end of the telescopic cylinder. A spring is fixedly installed between the bottom surface of the workbench and the top surface of the movable block, and the spring is sleeved on the outside of the screw.
[0008] The beneficial effects of this utility model are: by setting up a grinding component, the screw adopts a lifting and rotating motion mode to drive the grinding rods on both sides to fully grind the inner wall of the motor housing, replacing manual grinding by operators, improving grinding efficiency, and avoiding the situation of burning people's heads. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0010] Figure 2 This is a schematic diagram of the bottom structure of the workbench in this utility model;
[0011] Figure 3 In this utility model Figure 1 A magnified schematic diagram of the structure of region A;
[0012] Figure 4 This is a schematic diagram of the working state of the motor housing placed on the workbench in this utility model.
[0013] In the diagram: 1. Workbench; 2. Telescopic cylinder; 3. Retaining ring; 4. Screw; 5. Dual-axis cylinder; 6. Frosting rod; 7. Mounting plate; 8. Threaded pipe; 9. Spring; 10. Movable block; 11. Bearing; 12. Mounting ring. Detailed Implementation
[0014] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.
[0015] like Figure 1-4 The present invention discloses a grinding device for demolding aluminum explosion-proof motor housing, comprising a worktable 1 and a grinding assembly mounted on the worktable 1. A retaining ring 3 is fixedly installed at the center of the worktable 1. The grinding assembly includes a screw 4, a dual-axis cylinder 5 and a grinding rod 6. The screw 4 is movably installed at the center of the worktable 1, and an mounting ring 12 is fixedly installed at the top of the screw 4. The dual-axis cylinder 5 is fixedly installed on the outer wall of the mounting ring 12. The grinding rod 6 is installed on the output end of the dual-axis cylinder 5. Two dual-axis cylinders 5 are arranged, and the two dual-axis cylinders 5 are installed on both sides of the mounting ring 12. The output ends of the two dual-axis cylinders 5 face the two sides of the screw 4 respectively.
[0016] The outer wall of the abrasive rod 6 is fixedly mounted with an installation plate 7. The output end of the dual-axis cylinder 5 is provided with a fitting groove. The installation plate 7 is made of magnetic plate, and the output end of the dual-axis cylinder 5 is made of iron metal. One side of the installation plate 7 is adsorbed and installed inside the fitting groove.
[0017] A threaded tube 8 is fixedly installed at the center of the workbench 1. A screw 4 is threaded inside the threaded tube 8. A movable block 10 is movably installed below the workbench 1. A bearing 11 is installed on the bottom outer wall of the screw 4, and the bottom of the screw 4 is connected to the movable block 10 through the bearing 11. A telescopic cylinder 2 is fixedly installed on the surface of the workbench 1. The output end of the telescopic cylinder 2 passes through the workbench 1 and faces downwards. The outer wall of the movable block 10 is fixedly connected to the output end of the telescopic cylinder 2. A spring 9 is fixedly installed between the bottom surface of the workbench 1 and the top surface of the movable block 10, and the spring 9 is sleeved on the outside of the screw 4.
[0018] Example: The aluminum motor housing formed in the mold is removed, and the motor is placed inside the base ring 3 of the workbench 1. The screw 4 and the abrasive rod 6 are located inside the motor housing. The motor housing is removed from the mold, and one end of the motor housing will have solidified residue from the mold gate. The end with the residue is placed upwards. After placement, the dual-axis cylinder 5 extends its output end, which drives the mounting plate 7 through the output end. The mounting plate 7 drives the abrasive rod 6 to abut against the inner wall of the motor. The telescopic cylinder 2 is activated, and the output end drives the movable block 10 to move up and down. The movable block 10 drives the screw 4 to move up and down. The bottom end of the screw 4 and the movable block 10 are connected by the bearing 11. The outer wall is threadedly connected to the threaded tube 8. Therefore, the screw 4 will automatically rotate during the lifting and lowering. The screw 4 drives the abrasive rod 6 on both sides to polish the inner wall of the motor through the mounting ring 12 at the top. The lifting and rotating mechanism can thoroughly polish the inner wall of the motor. The elastic potential energy of spring 9 provides a certain resistance, allowing screw 4 to lift and lower stably. While polishing the inner wall of the motor, the operator can cut off the excess material at the top of the motor and polish the motor port.
[0019] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.
[0020] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A grinding device for demolding aluminum explosion-proof motor housing, comprising a worktable (1) and grinding components mounted on the worktable (1), characterized in that: A retaining ring (3) is fixedly installed at the center of the workbench (1). The grinding assembly includes a screw (4), a dual-axis cylinder (5), and a grinding rod (6). The screw (4) is movably installed at the center of the workbench (1). An installation ring (12) is fixedly installed at the top of the screw (4). The dual-axis cylinder (5) is fixedly installed on the outer wall of the installation ring (12). The grinding rod (6) is installed on the output end of the dual-axis cylinder (5). Two dual-axis cylinders (5) are arranged. The two dual-axis cylinders (5) are installed on both sides of the installation ring (12). The output ends of the two dual-axis cylinders (5) face the two sides of the screw (4) respectively.
2. The grinding device for demolding aluminum explosion-proof motor housing according to claim 1, characterized in that: The outer wall of the abrasive rod (6) is fixedly installed with an installation plate (7), the output end of the dual-axis cylinder (5) is provided with a fitting groove, the material of the installation plate (7) is a magnetic plate, the material of the output end of the dual-axis cylinder (5) is iron metal, and one side of the installation plate (7) is adsorbed and installed inside the fitting groove.
3. The grinding device for demolding aluminum explosion-proof motor housing according to claim 1, characterized in that: A threaded tube (8) is fixedly installed at the center of the workbench (1), and the screw (4) is threaded inside the threaded tube (8). A movable block (10) is movably arranged below the workbench (1). A bearing (11) is installed on the bottom outer wall of the screw (4), and the bottom of the screw (4) is connected to the movable block (10) through the bearing (11).
4. The grinding device for demolding aluminum explosion-proof motor housing according to claim 3, characterized in that: A telescopic cylinder (2) is fixedly installed on the table surface of the workbench (1). The output end of the telescopic cylinder (2) passes through the workbench (1) and faces downwards. The outer wall of the movable block (10) is fixedly connected to the output end of the telescopic cylinder (2).
5. The grinding device for demolding aluminum explosion-proof motor housing according to claim 3, characterized in that: A spring (9) is fixedly installed between the bottom surface of the workbench (1) and the top surface of the movable block (10), and the spring (9) is sleeved on the outside of the screw (4).