CN203125182U - Bearing support processing device - Google Patents

Abstract

The utility model discloses a bearing seat processing device, which comprises a mandrel, the middle part of the mandrel is set as a cone structure, the middle part of the mandrel is covered with a ball frame matched with the cone structure, the mandrel The end sleeve is provided with a rotating nut for clamping the bearing seat. In the utility model, the middle part of the mandrel is set as a cone structure, and then a ball frame matched with the cone structure is sleeved. When the bearing seat is set on the mandrel, the rotating nut set on the mandrel is rotated. , Finally, the ball frame and the cone structure in the middle of the mandrel are clamped, and then the bearing seat is locked, so that the positioning of the bearing seat is reliable, and the outer circle of the bearing seat is processed with high precision, which meets the requirement of small coaxiality error of the bearing seat.

Description

A bearing seat processing device

technical field

The utility model belongs to the field of mechanical processing and manufacturing, and relates to a bearing seat processing device. the

Background technique

The bearing seat is a common part on the machine tool. The precision of the bearing seat on the precision machine tool is high, and the coaxiality error is relatively small. When the requirement is 0.005mm, it is difficult to process. If a general clearance mandrel is used, the tolerance zone of the part will cause a gap when the part is matched with the mandrel, which will make the coaxiality requirements of the processed bearing seat exceed the requirements specified in the drawings. the

Utility model content

In view of the above defects or deficiencies, the utility model provides a bearing seat processing device with reliable positioning. the

The purpose of this utility model is to solve through the following technical solutions:

Including the mandrel, the middle part of the mandrel is set as a cone structure, the middle part of the mandrel is set with a ball frame matching the cone structure, and the end of the mandrel is set with a rotating nut for clamping the bearing seat . the

A rubber pad is arranged on the shoulder surface of the rotating nut. the

Several steel balls are installed on the edge of the ball frame. the

The utility model provides a bearing seat processing device. By setting the middle part of the mandrel as a cone structure, and then setting a ball frame matched with the cone structure, when the bearing seat is set on the mandrel, the sleeve The rotating nut on the mandrel rotates, and finally, the ball frame and the cone structure in the middle of the mandrel are clamped, and then the bearing seat is locked, so that the positioning of the bearing seat is reliable, and the outer circle of the bearing seat is processed with high precision, which meets the requirements of the bearing. Seat coaxiality error requirements are small. the

Description of drawings

Fig. 1 is a structural schematic diagram of a bearing seat processing device of the present invention. the

In the figure, 1 is a mandrel, 2 is a bearing seat, 3 is a ball frame, 4 is a rubber pad, 5 is a rotating nut, and 6 is a cone structure. the

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in detail. the

Referring to Fig. 1, the utility model provides a bearing housing processing device, including a mandrel 1, the middle of which is a cone structure 6, specifically, one end of the mandrel is a large diameter, and the other end is a The small diameter, the transition between the large diameter and the small diameter through the cone structure 6; the middle part of the mandrel is covered with a ball frame 3 that matches the cone structure 6, and a number of steel balls are installed on the edge of the ball frame 3, and the The steel ball is in contact with the cone surface of the cone structure 6 , the end of the mandrel 1 is provided with a rotating nut 5 for clamping the bearing seat 2 , and a rubber pad 4 is provided on the shoulder surface of the rotating nut 5 . the

The working principle of this utility model:

Firstly, the bearing seat 2 is sleeved on the spindle 1, and then the nut 5 is rotated so that the shoulder of the nut contacts the rubber pad 4 to pre-tighten the bearing seat 2. When the turning nut rotates further, it can push the ball frame 3, and at the same time, the ball moves to the left along the tapered surface until it touches the bearing seat 2, so that the bearing seat 2 is radially positioned. At this time, the rubber pad 3 has locked the bearing seat 2. Practice has proved that after the high-precision mandrel with cone structure is adopted in the utility model, the positioning of the bearing seat 2 is reliable, and the outer circle of the bearing seat is processed with high precision, which meets the requirement that the coaxiality error of the bearing seat is less than 0.005 mm. the

It should be noted that in this utility model, in order to meet the precision requirements of the coaxiality of the bearing seat, not only the high-precision mandrel 1 with a cone structure is used, but also the ball frame 3 is used to make the positioning of the bearing seat more reliable. At the same time, the following process requirements must be met when making this set of mandrel 1:

(1) The smaller the clearance between the ball frame 3 and the mandrel 1, the better. Therefore, a high-precision clearance fit is used. the

(2) In order not to affect the radial positioning accuracy of the bearing seat 2, the perpendicularity between the positioning hole of the ball frame 3 and the two ends should not be greater than 0.003mm. the

(3) The perpendicularity between the cone structure 6 of the mandrel 1 and the positioning end surface of the bearing seat 2 is not greater than 0.005mm. the

(4) The perpendicularity between the left end surface of the rotating nut 5 and the screw hole is not greater than 0.003mm. the

Claims (3)

1. bearing block processing unit (plant), it is characterized in that: comprise axle (1), the middle part of described axle (1) is set to cone structure (6), the middle part of axle is arranged with the ball frame (3) that matches with described cone structure (6), and the end of axle (1) is arranged with the rotating nut (5) for clamp shaft bearing (2).

2. bearing block processing unit (plant) according to claim 1, it is characterized in that: the shoulder face of described rotating nut (5) is provided with rubber blanket (4).

3. bearing block processing unit (plant) according to claim 1, it is characterized in that: the edge of described ball frame (3) is equipped with some steel balls.

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