Grinding wheel center water cooling structure

Abstract

The application discloses a center water outlet cooling structure of a grinding wheel and relates to the technical field of grinding wheel cooling, which comprises a rack, a driving motor arranged above the rack, a grinding wheel fixedly connected with a driving shaft of the driving motor, a mounting seat fixedly connected with the driving shaft of the driving motor and arranged on the grinding wheel in the axial direction of the grinding wheel, a cooling circuit arranged in the mounting seat and corresponding to the inner circular sidewall of the grinding wheel, and a water delivery pipeline communicated with the cooling circuit and arranged on the side of the grinding wheel away from the driving motor. The coating on the inner circular sidewall of the grinding wheel is removed, the cooling water is delivered into the cooling circuit of the mounting seat through the water delivery pipeline, and the centrifugal force generated by the rotation of the grinding wheel makes the cooling water diffuse into the grinding wheel through the air holes between the grinding materials of the grinding wheel, is sprayed out from the edge position of the grinding wheel, flushes and removes the grinding chips filled in the gaps between the grinding materials, simultaneously cools and lowers the temperature of the grinding wheel and the workpiece through the cooling water, and reduces the possibility of the occurrence of a focal spot of the workpiece during machining.

Claims

1. A center water cooling structure of a grinding wheel, comprising a frame (1), a driving motor (11) arranged above the frame (1), and a grinding wheel (2) fixedly connected with a driving shaft of the driving motor (11), characterized in that: The grinding wheel (2) is provided with a mounting base (3) fixedly connected to the drive shaft of the drive motor (11) along its axial direction. The mounting base (3) is provided with a cooling circuit (4) corresponding to the inner circular sidewall of the grinding wheel (2). A water supply pipe (5) connected to the cooling circuit (4) is provided on the side of the grinding wheel (2) away from the drive motor (11). The mounting base (3) extends along the axial direction of the grinding wheel (2) and is provided with a first card seat (31). The outer circular sidewall of the first card seat (31) is in contact with the inner circular sidewall of the grinding wheel (2). The side of the first card seat (31) away from the mounting base (3) is provided with a mounting column (32) corresponding to the water supply pipe (5). The cooling circuit (4) includes a water passage hole (41) opened along the axial direction of the mounting column (32). The sidewall of the mounting column (32) is provided with a water passage groove (42) communicating with the water passage hole (41) in the radial direction. The water passage groove (42) corresponds to the inner circular sidewall of the grinding wheel (2). A fixed chuck (6) is provided at one end of the mounting column (32) away from the first chuck seat (31). The fixed chuck (6) extends towards the grinding wheel (2) and is provided with a second chuck seat (61) corresponding to the inner circular side wall of the grinding wheel (2). The fixed chuck (6) and the second chuck seat (61) are provided with a central hole (62) that fits against the side wall of the mounting column (32). The mounting column (32) passes through the central hole (62) so that the fixed chuck (6) fits against the side of the grinding wheel (2) away from the first chuck seat (31). The outer diameter of the mounting post (32) is smaller than the inner diameter of the grinding wheel (2). A cooling cavity (43) connected to the water channel (42) is formed between the mounting post (32) and the grinding wheel (2) located between the mounting base (3) and the fixed chuck (6).

2. The center water cooling structure of the grinding wheel according to claim 1, characterized in that: The mounting base (3) and the fixed chuck (6) are provided with several interconnected positioning holes (63). The positioning holes (63) pass through the first chuck (31) and the second chuck (61) and are corresponding to the cooling cavity (43). The positioning holes (63) are threaded with set bolts (64) for fixing the mounting base (3) and the fixed chuck (6).

3. The center water cooling structure of the grinding wheel according to claim 2, characterized in that: The water passage holes (41) and water passage grooves (42) are provided at intervals along the circumferential sidewall of the mounting column (32). The end of the mounting column (32) away from the grinding wheel (2) is provided with a connecting groove (321) that communicates with the water passage holes (41). The end of the mounting column (32) is provided with an end cap (33) that covers the connecting groove (321) and is connected to the water supply pipeline (5).

4. The center water cooling structure of the grinding wheel according to claim 3, characterized in that: The outer circular sidewalls of the card holder one (31) and card holder two (61) are provided with a plurality of water inlet grooves (311) that correspond to the inner circular sidewalls of the grinding wheel (2) and communicate with the cooling cavity (43). The axial height of the card holder one (31) is greater than the axial height of the card holder two (61). The circumferential sidewalls of the card holder one (31) are provided with guide grooves (312) that communicate with the water inlet grooves (311).

5. The center water cooling structure of the grinding wheel according to claim 4, characterized in that: The water supply pipeline (5) includes a rotary joint (51) that is axially threaded to the central axis of the end cap (33), and the end of the rotary joint (51) away from the mounting post (32) is connected to the water supply pipe (52).

6. The center water cooling structure of the grinding wheel according to claim 5, wherein: The frame (1) is provided with a cover (7) corresponding to the grinding wheel (2). The top of the cover (7) is provided with a fixing hole (71) corresponding to the water supply pipe (52). The side wall of the cover (7) is provided with a fixing seat (72). The fixing seat (72) is provided with a slot (721) for engaging with the water supply pipe (52).

7. The center water cooling structure of the grinding wheel according to claim 6, characterized in that: The cover (7) extends away from the frame (1) and is provided with a water-retaining edge (73) corresponding to the grinding wheel (2).

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