A punching device for carbon brush production

Abstract

This utility model relates to the field of carbon brush production technology and discloses a drilling device for carbon brush production, including a drilling machine and a drill bit mounted on the drilling machine; the drilling machine is equipped with a dust discharge cylinder sleeved on the top of the drill bit, the dust discharge cylinder has a dust discharge chamber, the top of the dust discharge cylinder has an opening communicating with the dust discharge chamber and allowing the drill bit to pass through, the bottom of the dust discharge cylinder has a through hole communicating with the dust discharge chamber, and the bottom of the dust discharge cylinder has several dust inlet holes arranged around the through hole; an axial flow fan component is fixedly mounted on the drill bit, rotating through the through hole and extending into the dust discharge chamber; an elastic grinding wheel component is mounted on the bottom of the axial flow fan component. This utility model proposes a drilling device for carbon brush production, solving the problem that after drilling carbon brushes, it is impossible to grind off the protrusions and burrs at the top edge of the hole.

Description

Technical Field

[0001] This utility model relates to the field of carbon brush production technology, and in particular to a drilling device for carbon brush production. Background Technology

[0002] A carbon brush is a mechanical sliding contactor used in electric motors. It is typically used to transfer current between the rotor and stator. Carbon brushes are made of graphite or carbon-containing materials and have high electrical conductivity and good lubrication properties. They transfer current through sliding contact in the rotating parts of the motor. During the carbon brush manufacturing process, it is usually necessary to perform a drilling operation using a drilling machine. Drilling a hole in the center can enhance the overall structure of the carbon brush, making it less prone to deformation or breakage. When drilling holes in carbon brushes, protrusions and burrs are likely to appear at the top edge of the hole. After drilling the carbon brush, extra time is needed to polish the protrusions and burrs at the top of the hole. Both polishing and drilling can easily cause dust to fly everywhere.

[0003] To address the aforementioned issues, this application proposes a drilling device for carbon brush production. Utility Model Content

[0004] Based on the technical problems existing in the background art, this utility model proposes a drilling device for carbon brush production.

[0005] This utility model proposes a drilling device for carbon brush production, including a drilling machine and a drill bit installed on the drilling machine; The drilling machine is equipped with a dust discharge cylinder fitted onto the top of the drill bit. The dust discharge cylinder has a dust discharge chamber inside. The top of the dust discharge cylinder has an opening that communicates with the dust discharge chamber and allows the drill bit to pass through. The bottom of the dust discharge cylinder has a through hole that communicates with the dust discharge chamber. The bottom of the dust discharge cylinder has several dust inlet holes arranged around the through hole. An axial flow fan is fixedly fitted onto the drill bit, which rotates through the through hole and extends into the dust discharge chamber. The bottom of the axial flow fan is fitted with an elastic grinding wheel that is sleeved on the drill bit.

[0006] Preferably, the axial flow fan includes a fixed shaft, which is fixedly mounted on the drill bit and rotates through the through hole into the dust exhaust chamber. Several axial flow fan blades arranged circumferentially and located in the dust exhaust chamber are installed on the fixed shaft.

[0007] Preferably, the elastic grinding wheel component includes an elastic part and a grinding wheel disc. The elastic part is installed at the bottom of the fixed shaft and sleeved on the drill bit, and the grinding wheel disc is installed at the bottom of the elastic part and sleeved on the drill bit.

[0008] Preferably, the elastic part includes a spring, an assembly plate, and a limiting rod. The number of springs and limiting rods is several. The bottom of the fixed shaft has several insertion cavities arranged around the center. The several limiting rods are slidably inserted into the several insertion cavities. The assembly plate is installed on the bottom end of the several limiting rods and sleeved on the drill bit. The several springs are respectively sleeved on the several limiting rods and located between the fixed shaft and the assembly plate. The two ends of the several springs are respectively connected to the fixed shaft and the assembly plate. The grinding wheel is installed at the bottom of the assembly plate.

[0009] Preferably, the top of the dust discharge cylinder is connected to a dust discharge pipe that communicates with the dust discharge chamber, and the end of the dust discharge pipe away from the dust discharge cylinder is connected to a dust collection bag.

[0010] The above-mentioned technical solution of this utility model has the following beneficial technical effects: The carbon brush, axial fan, and flexible grinding wheel are designed to be placed at the bottom of the drill bit. The drill bit is then driven by a drilling machine to drill holes in the carbon brush. As the drill bit drills, it drives the axial fan to rotate. The rotation of the axial fan inside the dust exhaust cylinder generates airflow that is discharged outwards. Dust generated during drilling enters the dust exhaust cylinder through a dust inlet at the bottom and is then discharged. When the drill bit drills deeper into the carbon brush, the flexible grinding wheel at the bottom of the dust exhaust cylinder grinds the top edge of the hole. Dust generated during grinding enters the dust exhaust cylinder through a dust inlet at the bottom and is then discharged. This structure facilitates the grinding of protrusions and burrs on the top edge of the hole after drilling the carbon brush and can clean up the dust generated during drilling and grinding, preventing dust from flying everywhere. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a drilling device for carbon brush production proposed in this utility model.

[0012] Figure 2 This utility model Figure 1 A schematic diagram of a local structure.

[0013] Reference numerals in the attached drawings: 1. Drilling machine; 2. Drill bit; 3. Dust exhaust pipe; 4. Dust inlet; 5. Axial flow fan; 51. Fixed shaft; 52. Axial flow fan blade; 6. Elastic grinding wheel; 61. Elastic part; 611. Spring; 612. Assembly plate; 613. Limiting rod; 62. Grinding wheel disc; 7. Dust exhaust pipe. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0015] like Figure 1 and Figure 2 As shown, the present invention proposes a drilling device for carbon brush production, including a drilling machine 1 and a drill bit 2 installed on the drilling machine 1; In this embodiment, a dust discharge cylinder 3 is installed on the drilling machine 1 and sleeved on the top of the drill bit 2. A dust discharge chamber is opened inside the dust discharge cylinder 3. An opening is opened at the top of the dust discharge cylinder 3 to communicate with the dust discharge chamber and to allow the drill bit 2 to pass through. A through hole is opened at the bottom of the dust discharge cylinder 3 to communicate with the dust discharge chamber. Several dust inlet holes 4 are opened at the bottom of the dust discharge cylinder 3 around the through hole.

[0016] In this embodiment, an axial flow fan 5 is fixedly mounted on the drill bit 2, which rotates through the through hole and extends into the dust exhaust chamber. The axial flow fan 5 includes a fixed shaft 51, which is fixedly mounted on the drill bit 2 and rotates through the through hole to extend into the dust exhaust chamber. Several circumferentially arranged axial flow fan blades 52 are mounted on the fixed shaft 51 and located in the dust exhaust chamber.

[0017] In this embodiment, an elastic grinding wheel 6 is mounted on the bottom of the axial fan 5 and sleeved on the drill bit 2. The elastic grinding wheel 6 includes an elastic part 61 and a grinding wheel disc 62. The elastic part 61 is mounted on the bottom of the fixed shaft 51 and sleeved on the drill bit 2, and the grinding wheel disc 62 is mounted on the bottom of the elastic part 61 and sleeved on the drill bit 2. The elastic part 61 includes a spring 611, an assembly plate 612, and a limiting rod 613. There are several springs 611 and several limiting rods 613. The bottom of the fixed shaft 51 has several insertion cavities arranged around the center. Several limiting rods 613 are slidably inserted into several insertion cavities. The assembly plate 612 is installed on the bottom end of several limiting rods 613 and is sleeved on the drill bit 2. Several springs 611 are respectively sleeved on several limiting rods 613 and are located between the fixed shaft 51 and the assembly plate 612. The two ends of several springs 611 are respectively connected to the fixed shaft 51 and the assembly plate 612. The grinding wheel 62 is installed on the bottom of the assembly plate 612.

[0018] In a specific embodiment, the top of the dust discharge cylinder 3 is connected to a dust discharge pipe 7 that communicates with the dust discharge chamber, and the end of the dust discharge pipe 7 away from the dust discharge cylinder 3 is connected to a dust collection bag.

[0019] It should be noted that during use, the carbon brush can be placed at the bottom of the drill bit 2, and then the drill bit 2 can be driven down by the drilling machine 1 to drill holes in the carbon brush. When the drill bit 2 drills holes in the carbon brush, it can drive the fixed shaft 51 and the axial flow fan 52 located in the dust exhaust cylinder 3 to rotate simultaneously. When the axial flow fan 52 rotates in the dust exhaust cylinder 3, it can generate airflow to be discharged outward. The dust from drilling the carbon brush can enter through the dust inlet hole 4 at the bottom of the dust exhaust cylinder 3 and then be discharged through the dust exhaust pipe 7. When the drill bit 2 drills deep into the carbon brush, the grinding wheel 62 at the bottom of the dust exhaust cylinder 3 can be used to grind the top edge of the hole. The dust from grinding can enter through the dust inlet hole 4 at the bottom of the dust exhaust cylinder 3 and then be discharged. This structure facilitates the grinding of the protrusions and burrs on the top edge of the hole after drilling the carbon brush, and can clean the dust generated during drilling and grinding of the carbon brush, preventing dust from flying everywhere.

[0020] When grinding the top edge of the carbon brush hole, the spring 611 between the fixed shaft 51 and the mounting plate 612 can act as a buffer to prevent excessive impact force from damaging the carbon brush.

[0021] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A drilling device for carbon brush production, comprising a drilling machine (1) and a drill bit (2) mounted on the drilling machine (1), characterized in that: The drilling machine (1) is equipped with a dust discharge cylinder (3) fitted on the top of the drill bit (2). The dust discharge cylinder (3) has a dust discharge chamber. The top of the dust discharge cylinder (3) has an opening that communicates with the dust discharge chamber and allows the drill bit (2) to pass through. The bottom of the dust discharge cylinder (3) has a through hole that communicates with the dust discharge chamber. The bottom of the dust discharge cylinder (3) has several dust inlet holes (4) arranged around the through hole. The drill bit (2) is fixedly fitted with an axial flow fan (5) that rotates through the through hole and extends into the dust discharge chamber. The bottom of the axial flow fan (5) is fitted with an elastic grinding wheel (6) that is sleeved on the drill bit (2).

2. The punching device for carbon brush production according to claim 1, characterized in that, The axial fan component (5) includes a fixed shaft (51), which is fixedly mounted on the drill bit (2) and rotates through the through hole to extend into the dust discharge chamber. Several axial fan blades (52) arranged circumferentially and located in the dust discharge chamber are installed on the fixed shaft (51).

3. The punching device for carbon brush production according to claim 2, characterized in that, The elastic grinding wheel component (6) includes an elastic part (61) and a grinding wheel disc (62). The elastic part (61) is installed at the bottom of the fixed shaft (51) and sleeved on the drill bit (2). The grinding wheel disc (62) is installed at the bottom of the elastic part (61) and sleeved on the drill bit (2).

4. The punching device for carbon brush production according to claim 3, characterized in that, The elastic part (61) includes a spring (611), an assembly plate (612), and a limiting rod (613). There are several springs (611) and several limiting rods (613). The bottom of the fixed shaft (51) is provided with several insertion cavities arranged around the center. Several limiting rods (613) are slidably inserted into several insertion cavities. The assembly plate (612) is installed on the bottom end of several limiting rods (613) and sleeved on the drill bit (2). Several springs (611) are respectively sleeved on several limiting rods (613) and located between the fixed shaft (51) and the assembly plate (612). The two ends of several springs (611) are respectively connected to the fixed shaft (51) and the assembly plate (612). The grinding wheel (62) is installed on the bottom of the assembly plate (612).

5. The punching device for carbon brush production according to claim 1, characterized in that, The top of the dust discharge cylinder (3) is connected to a dust discharge pipe (7) that communicates with the dust discharge chamber, and the end of the dust discharge pipe (7) away from the dust discharge cylinder (3) is connected to a dust removal bag.

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