CN220660466U

CN220660466U - Bearing frame processing frock

Info

Publication number: CN220660466U
Application number: CN202322375237.5U
Authority: CN
Inventors: 董伟; 罗兴征; 董泽坤; 朱林
Original assignee: Ningjiang Machine Tool Group Co ltd
Current assignee: Ningjiang Machine Tool Group Co ltd
Priority date: 2023-09-01
Filing date: 2023-09-01
Publication date: 2024-03-26
Anticipated expiration: 2033-09-01

Abstract

The utility model discloses a bearing seat processing tool which comprises a cylindrical sleeve, wherein a bearing seat mounting hole concentric with the center of a bearing seat to be processed is processed in the center of the cylindrical sleeve; the side wall of the cylindrical sleeve is provided with a locking screw hole communicated with the bearing seat mounting hole, and the locking screw hole is provided with a bolt for fixing the bearing seat. The bearing seat is fixed through the cylindrical sleeve, the cylindrical sleeve and the cylindrical sleeve are concentrically arranged, the standard of a bearing seat hole is converted to the outer circle of the whole tool sleeve, and the universal grinding machine is convenient for clamping the bearing seat.

Description

Bearing frame processing frock

Technical Field

The utility model relates to the field of bearing seat machining devices, in particular to a bearing seat machining tool.

Background

In the field of machine tool manufacturing, a bearing seat is a common part and mainly used for fixing and supporting a bearing so as to ensure the rotation precision of the bearing. Along with the increasing requirements of the market on the precision and stability of the machine tool, the related bearing precision is gradually improved; the requirements for bearing carrier housings for part of high precision machine tools are evolving into high precision parts.

Fig. 4 and 5 show a high-precision bearing housing for use in a high-precision lathe. The coaxiality of holes at two ends of the part reaches phi 0.002mm, and the roundness is 0.001mm. The part is a square part, and the main precision is that the roundness of the hole is 0.001mm, and the coaxiality of the two ends is 0.002mm. At present, the traditional machining mode for parts of this type is fine boring. Then turning around by the rotary table to process the two ends, and the processing mode can reach the precision of the part about 0.005. The precision of the part is 0.002mm, and the machining requirement of the part cannot be met through fine boring. In addition, the boring and milling process cannot meet the requirement of 0.001mm in roundness of the hole. Therefore, the existing processing means are difficult to break through the precision requirement of the parts. The machining precision requirement of the part can be met only by adopting a high-precision universal grinder. However, because the part structure is large at two ends and small at the middle is separated, the clamping of the universal grinder is difficult.

Disclosure of Invention

The utility model aims to overcome the defect that the conventional universal grinder is inconvenient to clamp when used for machining a square bearing seat, and provides a bearing seat machining tool which is used for fixing a bearing seat through a cylindrical sleeve, concentrically installing the cylindrical sleeve and facilitating clamping of the universal grinder.

The aim of the utility model is achieved by the following technical scheme:

the utility model provides a bearing seat machining tool which comprises a cylindrical sleeve, wherein a bearing seat mounting hole concentric with the center of a bearing seat to be machined is machined in the center of the cylindrical sleeve; the side wall of the cylindrical sleeve is provided with a locking screw hole communicated with the bearing seat mounting hole, and the locking screw hole is provided with a bolt for fixing the bearing seat.

In one possible design, the bearing housing mounting holes are square holes and the locking screw holes are provided on both sides of the bearing housing mounting holes.

In one possible design, 2 locking screw holes are provided on both sides of the bearing housing mounting hole, respectively.

In one possible design, a shim plate is also included for placement between the bearing seat to be machined and the bolt.

In one possible design, one end of the bearing housing mounting hole is provided with a relief slot.

In one possible design, the cylindrical sleeve is provided with a stepped structure at one end thereof which is disposed in the relief slot.

The utility model has the following advantages:

according to the utility model, the bearing seat mounting hole concentric with the center of the bearing seat to be processed is arranged on the cylindrical sleeve, and the bearing seat is concentric with the cylindrical sleeve after the bearing seat is mounted, so that the standard of the bearing seat hole is converted to the outer circle of the whole tool sleeve, and the clamping of the universal grinding machine on the bearing seat is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a side view of a bearing housing tooling of the present utility model;

FIG. 2 is an elevation view of the bearing housing tooling of the present utility model;

FIG. 3 is a schematic clamping view of the bearing seat machining tool of the utility model;

FIG. 4 is a side view of a prior art high precision bearing housing;

fig. 5 is a front view of a conventional high-precision bearing housing.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not to indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In order to solve the problem that the clamping of the upper universal grinder is difficult because the large holes at the two ends and the small holes at the middle of the bearing seat with the structure shown in fig. 4 and 5 are separated, the utility model provides a bearing seat processing tool for assisting the clamping of the bearing seat by the universal grinder. Specifically, as shown in fig. 1 and 2, the bearing seat machining tool comprises a cylindrical sleeve 1, wherein a bearing seat mounting hole concentric with the center of a bearing seat 5 to be machined is machined in the center of the cylindrical sleeve, a locking screw hole 2 communicated with the bearing seat mounting hole is formed in the side wall of the cylindrical sleeve 1, and a bolt 3 for fixing the bearing seat is arranged in the locking screw hole 2.

According to the scheme, the concentric bearing seat mounting hole in the center of the bearing seat to be machined is formed in the cylindrical sleeve, after the bearing seat is installed, the appearance surface of the part is completely attached to the tool cavity, and the center of the circular tool is consistent with the hole center of the part. The bolt is adopted to fix the device in the cylinder sleeve. By adopting the tool structure, the standard of the bearing seat hole can be converted to the outer circle of the whole tool round sleeve, so that the universal grinding machine is convenient for clamping the bearing seat.

In order to improve the stability of fixing the bearing seat, the bearing seat mounting hole is a square hole, and the locking screw holes 2 are arranged on two side surfaces of the bearing seat mounting hole. Further, 2 locking screw holes 2 are respectively arranged on two side surfaces of the bearing seat mounting hole, as shown in fig. 1.

In order to facilitate the processing of the bearing pedestal, a tool retracting groove is arranged at one end of the bearing pedestal mounting hole. One end of the cylinder sleeve 1, which is arranged in the tool retracting groove, is provided with a step structure.

In order to achieve protection of the bearing block, a backing plate 4 may be provided between the bearing block to be machined and the bolt 3.

By adopting the tool with any structure, according to the size of the bearing seat part, the two perpendicular planes of the bearing seat are used as references, the center of the whole round sleeve is processed into a cavity with the same shape as the part, and the center of the bearing seat hole is ensured to be consistent with the center of the tool. After the part is installed in the tool, the center of the circular tool and the center of the hole of the part can be guaranteed to be consistent after the appearance surface of the part is completely attached to the cavity of the tool. The parts are fixed on the whole circular sleeve by using bolts 3 and adding gaskets, refer to figure 2. After the combination is completed according to the tool, the reference of the part hole is converted to the outer circle of the whole circular sleeve of the tool.

During clamping, the part datum is converted into a high-precision whole circle sleeve excircle through the tool, then the part is processed by a high-precision universal grinder, and the part is clamped by a three-jaw chuck and a center frame. Calibrating the precision of the far end and the near end; after one end is machined, turning around for secondary clamping, and the clamping position is exchanged with the position of the center frame, so that the other end is machined. The secondary clamping mainly depends on the precision of the tool and the precision of the calibration. The whole error of the correction precision and the tool precision is ensured to be within the range of the part precision, so that the precision requirement of the part can be ensured. As shown in fig. 3, the position a is a rack position, and the position B is a three-jaw clamping position. By adopting the tool and the high-precision universal grinder, the high-precision bearing seat processing can be realized.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The bearing seat machining tool is characterized by comprising a cylindrical sleeve (1), wherein a bearing seat mounting hole concentric with the center of a bearing seat to be machined is machined in the center of the cylindrical sleeve; the side wall of the cylindrical sleeve (1) is provided with a locking screw hole (2) communicated with the bearing seat mounting hole, and the locking screw hole (2) is provided with a bolt (3) for fixing the bearing seat.

2. The bearing housing processing tool of claim 1, wherein: the bearing seat mounting holes are square holes, and the locking screw holes (2) are formed in two side faces of the bearing seat mounting holes.

3. The bearing housing processing tool of claim 2, wherein: two side surfaces of the bearing seat mounting hole are respectively provided with 2 locking screw holes (2).

4. The bearing housing processing tool of claim 1, wherein: the device also comprises a backing plate (4) which is arranged between the bearing seat to be processed and the bolt (3).

5. The bearing housing processing tool of claim 1, wherein: and one end of the bearing seat mounting hole is provided with a tool retracting groove.

6. The bearing housing processing tool of claim 5, wherein: one end of the cylindrical sleeve (1) arranged in the tool retracting groove is provided with a step structure.