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CN-116352521-B - Bearing ring polishing device

CN116352521BCN 116352521 BCN116352521 BCN 116352521BCN-116352521-B

Abstract

The application relates to the technical field of bearing processing equipment, and discloses a bearing ring polishing device which solves the problem that a workpiece easily jumps during centerless grinding, and comprises a frame, a grinding wheel, a guide wheel and a cooling mechanism, wherein the grinding wheel, the guide wheel and the cooling mechanism are arranged on the frame; the bracket comprises a supporting plate, the jump prevention mechanism comprises an air suction pipe, an air outlet pipe, a first fan connected with the air suction pipe and a second fan connected with the air outlet pipe, an air suction groove is formed in the top surface of the supporting plate, one end, away from the first fan, of the air suction pipe is communicated with the air suction groove, and an air outlet of the air outlet pipe is arranged above the frame and is close to the entering direction of a workpiece. When the bearing rings pass through the bracket, the first fan attracts the bearing rings to the direction close to the bracket through the air suction grooves, so that the jumping of the bearing rings is reduced, the second fan separates the arranged bearings through the air outlet pipe, the mutual influence among the bearing rings is reduced, and the rotary precision of grinding the bearing rings can be improved.

Inventors

  • YANG JIE
  • CHEN XIUYAN

Assignees

  • 福州市长乐区东风轴承有限公司

Dates

Publication Date
20260505
Application Date
20230426

Claims (7)

  1. 1. The bearing ring polishing device comprises a frame (1) and a grinding wheel (2), a guide wheel (3) and a cooling mechanism (7) which are arranged on the frame (1), and is characterized in that an anti-jump mechanism (6) and a bracket (4) for supporting a workpiece are arranged between the grinding wheel (2) and the guide wheel (3), the bracket (4) comprises a supporting plate (5), the anti-jump mechanism (6) comprises an air suction pipe (61) and a first fan (62) connected with the air suction pipe (61), an air suction groove (53) is formed in the top surface of the supporting plate (5), and one end, far away from the first fan (62), of the air suction pipe (61) is communicated with the air suction groove (53); The top end of the supporting plate (5) comprises a supporting part (51) and an anti-jump part (52) which are connected, the supporting part (51) is close to the grinding wheel (2) and is obliquely downwards arranged from the direction of the grinding wheel (2) to the direction of the guide wheel (3), and the anti-jump part (52) is obliquely upwards arranged from the direction of the grinding wheel (2) to the direction of the guide wheel (3); A transition cavity (54) communicated with the air suction groove (53) is formed in the supporting plate (5), the air suction pipe (61) is communicated with the inner wall of the transition cavity (54), a drain hole (55) is formed in the bottom of the inner wall of the transition cavity (54), a drain channel (56) is formed in the supporting plate (5), one end of the drain channel (56) is communicated with the drain hole (55), and the other end of the drain channel is communicated with the outer surface of the supporting plate (5).
  2. 2. The bearing ring polishing device as set forth in claim 1, wherein the anti-jump mechanism (6) further comprises a second fan (63) and an air outlet pipe (64) connected with the second fan (63), and an air outlet (641) of the air outlet pipe (64) is arranged above the frame (1) and is close to the direction in which a workpiece enters.
  3. 3. The grinding device for bearing rings according to claim 2, wherein the air outlet (641) is arranged obliquely downward in the advancing direction of the workpiece, and the joint of the supporting part (51) and the anti-jump part (52) is also arranged obliquely downward in the advancing direction of the workpiece.
  4. 4. The bearing ring polishing device as set forth in claim 2, wherein the anti-jump mechanism (6) further comprises a support (66), the air outlet pipe (64) is penetrated through and fixed on the support (66), the support (66) is obliquely downwards arranged from the direction of the guide wheel (3) to the direction of the grinding wheel (2), the obliquely downwards edge of the support (66) is located above the position, close to a workpiece, of the grinding wheel (2), and the cooling mechanism (7) comprises an outlet pipe (71), and the water outlet end (711) of the outlet pipe (71) is arranged above the support (66).
  5. 5. A bearing ring grinding device according to claim 1, wherein the bottom wall of the transition chamber (54) is arranged obliquely downwards in the direction of the drain hole (55).
  6. 6. The bearing ring polishing device as set forth in claim 1, wherein the air suction pipe (61) comprises a vertical section (611) and a horizontal section (612) which are communicated, a water outlet hole (613) is formed in the bottom wall of the vertical section (611), and the water outlet hole (613) is communicated with the water drainage channel (56).
  7. 7. A bearing ring polishing device as set forth in claim 1, wherein a drain groove (57) is provided on the top surface of the support portion (51), a drain cavity (58) communicating with the drain groove (57) is provided in the support plate (5), and the bottom of the drain cavity (58) communicates with the drain channel (56).

Description

Bearing ring polishing device Technical Field The application relates to the technical field of bearing machining equipment, in particular to a bearing ring polishing device. Background The bearing is a part with higher precision requirement, and needs to be processed by adopting a polishing device to ensure the rotation precision. With the continuous development of bearing processing technology, for small or miniature bearing rings with difficult axial center positioning, centerless grinding machines capable of grinding without positioning the axial center of a workpiece are mostly adopted. The existing centerless grinding machine comprises a grinding wheel, a guide wheel and a bracket arranged between the grinding wheel and the guide wheel, wherein a workpiece is arranged between the grinding wheel and the guide wheel and supported by the bracket, the guide wheel drives the workpiece to rotate and guide forward, the grinding wheel grinds the surface of the workpiece, and cooling liquid is required to be supplied during grinding to reduce the temperature and wash out fallen abrasive particles. The positioning reference of the centerless grinder is the excircle of the workpiece, the center of the workpiece is higher than the center connecting line of the grinding wheel and the guide wheel, the center of the workpiece is continuously changed in the grinding process, and the contact point between the workpiece and the grinding wheel and the guide wheel is also asymmetric, so that certain bulges on the surface can be gradually rounded in multiple rotations. However, the centerless grinder is positioned by the center hole differently from the outer circle grinder, and the workpiece is easy to jump when being bent, out of round or prismatic, thereby influencing the quality of the workpiece. Disclosure of Invention In order to overcome the defect that a workpiece easily jumps during centerless grinding, the application provides a bearing ring grinding device. The application provides a bearing ring polishing device, which adopts the following technical scheme: The bearing ring polishing device comprises a frame, a grinding wheel, a guide wheel and a cooling mechanism, wherein the grinding wheel, the guide wheel and the cooling mechanism are arranged on the frame, an anti-jump mechanism and a bracket for supporting a workpiece are arranged between the grinding wheel and the guide wheel, the bracket comprises a supporting plate, the anti-jump mechanism comprises an air suction pipe and a first fan connected with the air suction pipe, an air suction groove is formed in the top surface of the supporting plate, and one end, away from the first fan, of the air suction pipe is communicated with the air suction groove. Through adopting above-mentioned technical scheme, offer the groove that induced drafts on the layer board, when the race ring passes through from the bracket, first fan produces suction, can attract the race ring to the direction that is close to the bracket to reduce the race ring and polish the time because of the bellied possibility that produces to beat in surface, can improve the gyration precision of race ring grinding. Optionally, the top of the supporting plate comprises a supporting part and an anti-jump part, the supporting part is close to the grinding wheel and is obliquely downwards arranged from the grinding wheel direction to the guide wheel direction, the anti-jump part is obliquely upwards arranged from the grinding wheel direction to the guide wheel direction, and the air suction groove is arranged on the surface of the anti-jump part. By adopting the technical scheme, the supporting plate is obliquely downwards arranged towards the direction of the guide wheel, so that the bearing ring is tightly pressed on the guide wheel, the bearing ring can be subjected to circumferential rotation and forward movement by the guide force of the guide wheel, and the air suction groove is arranged on one side close to the guide wheel, so that the bearing ring can be pressed against the surface of the guide wheel while the jumping of the bearing ring is reduced, the movement of the bearing ring is more stable, and the rotation precision of grinding the bearing ring is further improved. Optionally, the anti-jump mechanism further comprises a second fan and an air outlet pipe connected with the second fan, and an air outlet of the air outlet pipe is arranged above the frame and is close to the entering direction of the workpiece. Through adopting above-mentioned technical scheme, the race ring can be in the counterbalance arrangement gets into the bracket when the grinding, can influence adjacent race ring when certain race ring takes place to beat, blows the race ring through the outlet duct, gives an acceleration to the race ring, can separate the race ring that gets into the bracket in proper order, makes every race ring each other not ground connection grind through emery wheel and guide pulley, furth