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CN-224223586-U - High-speed motorized spindle of grinding machine

CN224223586UCN 224223586 UCN224223586 UCN 224223586UCN-224223586-U

Abstract

The application discloses a high-speed motorized spindle of a grinding machine, which relates to the field of motorized spindles and comprises an outer shell, wherein the inner wall of the outer shell is rotationally connected with the motorized spindle through a bearing, an oil inlet groove is formed in the inner wall of the outer shell, one end of the oil inlet groove is in sealing connection with an external oil pipe, an oil guide groove is formed in the inner wall of the outer shell, close to the bearing, and an oil injection port is formed in one side of the oil guide groove. This device is through pouring into the oil feed tank with lubricating oil from outside oil pipe in, in the rethread leads the oil groove, lubricating oil evenly goes out to spray to the bearing from four oil spouts, even spraying is on the bearing, can not appear single-point spraying and lead to lubricating oil to pile up in the peripheral bottom of bearing to a large amount of seepage, collect the lubricating oil of outflow through the guide plate, go out the drainage to the through-hole again, flow from the drainage tube at last, thereby reach the more even that makes bearing lubricating oil spray, reduce the quantity of lubricating oil seepage, can collect the effect to the lubricating oil of seepage simultaneously.

Inventors

  • JIANG NENG
  • TANG JUN

Assignees

  • 上海星合机电有限公司

Dates

Publication Date
20260512
Application Date
20250527

Claims (7)

  1. 1. The high-speed motorized spindle of the grinding machine comprises an outer shell (1), wherein an electric spindle body (7) is rotationally connected to the inner wall of the outer shell (1) through a bearing (12), and is characterized in that an oil inlet groove (11) is formed in the inner wall of the outer shell (1), one end of the oil inlet groove (11) is in sealing connection with an external oil pipe, an oil guide groove (13) is formed in one side, close to the bearing (12), of the inner wall of the outer shell (1), an oil spraying port (131) is formed in one side of the oil guide groove (13), a cooling sleeve (2) is fixed to the outer wall of the outer shell (1), a flange plate (6) is fixed to one side, close to the electric spindle body (7), of the bottom of the flange plate (6), a water storage groove (16) is formed in the inner wall of the outer shell (1), and one end of the outer shell (1) is provided with a second water inlet pipe (14) and a second water outlet pipe (15).
  2. 2. The high-speed motorized spindle of the grinding machine of claim 1, wherein the oil guide grooves (13) are arranged in a circular ring shape, four oil injection ports (131) are arranged, and four oil injection ports (131) are arranged on the outer wall of the oil guide groove (13) in a circumferential equidistant shape.
  3. 3. The high-speed motorized spindle of the grinding machine of claim 1, wherein the guide plates (8) are obliquely arranged, the guide plates (8) are arc-shaped, through holes (9) are formed in the middle of the bottoms of the guide plates (8), and drainage tubes (10) are fixed at the bottoms of the through holes (9).
  4. 4. The high-speed motorized spindle of claim 1, wherein the plurality of water storage tanks (16) are circumferentially equidistant, the plurality of water storage tanks (16) are mutually communicated, and one ends of the two water storage tanks (16) are respectively connected with the second water inlet pipe (14) and the second water outlet pipe (15).
  5. 5. The high-speed motorized spindle of the grinding machine of claim 1, wherein the inner wall of the cooling sleeve (2) is provided with a water flow channel (3), the cross section of the water flow channel (3) is arranged in a semicircular shape, and the water flow channel (3) is arranged in a spiral shape.
  6. 6. The high-speed motorized spindle of the grinding machine of claim 5, wherein one end of the outer wall of the cooling sleeve (2) is fixedly penetrated by a first water outlet pipe (4), the other end of the outer wall of the cooling sleeve (2) is fixedly penetrated by a first water inlet pipe (5), and the first water outlet pipe (4) and the first water inlet pipe (5) are respectively in penetrating and sealing connection with two ends of the water channel (3).
  7. 7. The high-speed motorized spindle of the grinding machine of claim 6, wherein the length value of the cooling sleeve (2) is matched with the length value of the outer shell (1), and sealing rings (17) are fixed at two ends of the cooling sleeve (2).

Description

High-speed motorized spindle of grinding machine Technical Field The application relates to the field of motorized spindles, in particular to a high-speed motorized spindle of a grinding machine. Background In the current industrial production activities, grinding of workpieces is mainly performed on a grinding machine, different grinding machine types such as a internal grinding machine, a cylindrical grinding machine, a surface grinding machine, an end surface grinding machine and the like are required to be selected according to different processing requirements, the stability of operation of a main shaft has an important influence on the quality of the processed workpieces as one of core components of the grinding machine, the traditional grinding machine only simply lubricates a bearing for supporting the main shaft, other measures are not taken to improve the bearing capacity of the main shaft, the problem of unstable operation of the main shaft is caused, serious adverse effects are caused on the quality of the processed workpieces, and based on the situation, how to enhance the stability of operation of the main shaft of the grinding machine, the processing quality of the workpieces is improved, and the problem of urgent need of relevant technicians is increasingly solved. However, when the existing electric spindle works, a large amount of heat is generated due to long-time high-speed rotation, and usually, circulating water flow is injected into the electric spindle and the shell for cooling, although the electric spindle can be effectively cooled, after the electric spindle works for a long time, the shell also has a large amount of heat, so that the temperature of the electric spindle in the electric spindle is only higher and higher, meanwhile, in order to avoid the occurrence of high temperature, the bearing is sprayed with lubricating oil for reducing friction force for cooling, and single-point spraying of the lubricating oil can generate excessive single-position lubricating oil, so that a large amount of lubricating oil leaks. Disclosure of utility model The application provides a high-speed electric spindle of a grinding machine, which aims to solve the problems that after long-time working, a shell has a large amount of heat, so that the temperature of an internal electric spindle is only higher and higher, and lubricating oil at a single position is excessive when lubricating oil is sprayed at a point, so that a large amount of lubricating oil leaks. The application provides a high-speed motorized spindle of a grinding machine, which adopts the following technical scheme that the high-speed motorized spindle comprises an outer shell, wherein the inner wall of the outer shell is rotationally connected with an motorized spindle body through a bearing, an oil inlet groove is formed in the inner wall of the outer shell, one end of the oil inlet groove is in sealing connection with an external oil pipe, an oil guide groove is formed in the inner wall of the outer shell, which is close to the bearing, one side of the oil guide groove is provided with an oil injection port, a cooling sleeve is fixed on the outer wall of the outer shell, a flange plate is fixed on the outer wall of the cooling sleeve, a guide plate is fixed on the bottom of the flange plate, which is close to the motorized spindle body, a water storage groove is formed in the inner wall of the outer shell, and a second water inlet pipe and a second water outlet pipe are arranged at one end of the outer shell. Through adopting above-mentioned technical scheme, in pouring into the oil feeding groove with lubricating oil through outside oil pipe, outer casing inner wall is close to and has offered oil guide groove in one side of having the bearing, has offered oil spout mouth in oil guide groove one side, and oil spout mouth can directly spray outside lubricating oil outside the bearing, and the cooling cover outer wall other end runs through and is fixed with first inlet tube, and first inlet tube is located and is close to electric main shaft body one side, can be preferentially cool down electric main shaft body one side. Preferably, the oil guiding groove is arranged in a circular ring shape, the oil injection ports are arranged in four, and the oil injection ports are arranged on the outer wall of the oil guiding groove in a circumferential equidistant shape. Through adopting above-mentioned technical scheme, through in pouring into the oil inlet groove with lubricating oil from outside oil pipe, in leading the oil groove again, the lubricating oil that outside oil pipe continued to pour into has pressure, evenly goes out the injection to the bearing with lubricating oil from four oil injection ports for lubricating oil can even injection on the bearing, can not appear single-point injection and lead to lubricating oil to pile up in the peripheral bottom of bearing, thereby a large amount of seepage. Preferably, the guide pla