CN204397610U - A kind of lower grinding head device for grinding, grinding, polishing machine - Google Patents

Abstract

The utility model discloses a kind of lower grinding head device for grinding, grinding, polishing machine, comprise central shaft, the lower wall hollow shaft be movably arranged on central shaft, the lower tray be fixed in lower wall hollow shaft, be arranged on lower wall emery wheel above lower tray; Described lower wall hollow shaft is bearing in frame by plane bearing and one group of back to back angle contact ball bearing and deep groove ball bearing.The utility model can ensure the machining accuracy of equipment, and the quality of raising grinding, polishing and efficiency, adapt to the processing of the class high hard materials such as sapphire.

Description

A lower grinding head device for grinding, grinding and polishing machines

technical field

The utility model belongs to surface processing equipment, in particular to a lower grinding head (lower disc) device for grinding, grinding and polishing machines.

Background technique

Existing double-sided grinding and polishing machine tools all adopt tapered roller bearings and deep groove ball bearing structures, and it is difficult to guarantee the accuracy and service life when the grinding and polishing pressure is high and the line speed is high, and it cannot process high-hard materials such as sapphire.

Utility model content

The purpose of this utility model is to solve the problems that the existing grinding and polishing equipment can withstand the grinding and polishing force is small and the vibration is large, and proposes a grinding, grinding, The lower grinding head (lower plate) device of the polishing machine.

For realizing the purpose of the utility model, the technical scheme provided by the utility model is as follows:

The lower grinding head (lower disc) device for grinding, grinding and polishing machines, including the central shaft, the lower disc hollow shaft movably installed on the central shaft, the lower tray fixed on the lower disc hollow shaft, and the lower disc mounted on the lower tray The lower disc grinding wheel; the hollow shaft of the lower disc is supported on the frame through plane bearings, a set of back-to-back angular contact ball bearings and deep groove ball bearings.

The beneficial effects of the utility model:

Since the hollow shaft of the lower plate of the utility model is supported on the frame by a group of back-to-back angular contact ball bearings and deep groove ball bearings, it can bear the combined action of radial and axial loads, so that the fulcrums of the upper and lower bearings are arranged to span The larger the distance, the smaller the length of the cantilever, so the rigidity of the cantilever end is greater. When the hollow shaft of the lower plate is heated and elongated, the bearing clearance increases, so that the bearing will not be seized and damaged. The utility model can ensure the processing precision of the equipment, improve the quality and efficiency of grinding and polishing, and is suitable for processing high-hard materials such as sapphire.

Further illustrate the technical scheme of the utility model below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Detailed ways

The lower grinding head (lower disc) device for grinding, grinding and polishing machines includes a central shaft 3, a lower disc hollow shaft 4 movably installed on the central shaft 3 through a sealing mechanism 9, and a lower disc hollow shaft fixed on the lower disc hollow shaft 4. The lower tray 2, the lower disc grinding wheel 1 installed on the lower tray 2; the lower disc hollow shaft 4 is supported on the frame 7 by a plane bearing 5, a set of back-to-back angular contact ball bearings 6 and a deep groove ball bearing 8 Combined action of radial and axial loads.

Claims (1)

1., for a lower grinding head device for grinding, grinding, polishing machine, comprise central shaft, the lower wall hollow shaft be movably arranged on central shaft, the lower tray be fixed in lower wall hollow shaft, be arranged on lower wall emery wheel above lower tray; It is characterized in that described lower wall hollow shaft is bearing in frame by plane bearing and one group of back to back angle contact ball bearing and deep groove ball bearing.