CN212598950U

CN212598950U - Cylinder finish machining excircle frock

Info

Publication number: CN212598950U
Application number: CN202021400240.8U
Authority: CN
Inventors: 何振宇
Original assignee: JIANGDU XINYU HIGH-VOLTAGE ELECTRICAL EQUIPMENT FACTORY
Current assignee: JIANGDU XINYU HIGH-VOLTAGE ELECTRICAL EQUIPMENT FACTORY
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-02-26
Anticipated expiration: 2030-07-16

Abstract

The utility model discloses a cylinder finish machining excircle frock. This cylinder finish machining excircle frock, including the polylith arc that can splice into a whole circle, arc big footpath one side is equipped with the counter bore that is used for connecting lathe chuck, arc path one side is equipped with the first arc boss that is used for cup jointing the cylinder, is equipped with the elastic component between first arc boss outer peripheral face and the cylinder inner wall, and the elastic component is equipped with the cambered surface that matches with the cylinder inner wall, elastic component rigid coupling slider, and first arc boss outer peripheral face is equipped with the slide of cooperation slider, and the slide is equipped with the tool withdrawal groove by arc one side. The utility model provides a when the finish machining cylinder excircle, the easy wearing and tearing of cylinder inner wall or scotch problem.

Description

Cylinder finish machining excircle frock

Technical Field

The utility model relates to the field of machining, especially, relate to a cylinder finish machining excircle frock.

Background

In the field of machining, the following problems exist in the machining of a large-diameter thin-wall cylinder on a lathe:

1. because the wall of the workpiece is thin, clamping and fastening are difficult, deformation is easy to generate during fastening, and a certain elastic deformation amount can be generated even after the workpiece is machined, loosened and clamped, so that the workpiece is unqualified or directly scrapped.

2. The force can not be too big when the work piece presss from both sides tightly, and too big makes the work piece warp easily, and undersize then the work piece is easy pine to take off in the course of working, flies out.

3. In the machining process, the workpiece needs to bear certain clamping force besides normal cutting force, so that the workpiece is always in an elastic deformation state in the machining process, and the machining size is difficult to guarantee.

4. A large amount of heat can be generated in the machining process, and due to the fact that the rigidity of the thin-wall part is insufficient, the workpiece is always in a constantly changing state in the machining process, the size is difficult to control, and the final size is difficult to meet the machining requirements of drawings.

5. Because the workpiece is always deformed in the machining process, the phenomena of cutter back-off and cutter vibration are easy to occur in the machining process, and the rotating speed of a main shaft, the amount of back-cut and the feeding speed are required to be reduced for improving the phenomena of cutter back-off and cutter vibration. Therefore, the machining efficiency is reduced, the cutter loss is increased, the precision is difficult to ensure, and the machining cost is increased.

The existing tooling for machining the outer circle of the large-diameter thin-wall cylinder with the publication number of CN203542168U can conveniently machine the outer circle of the large-diameter thin-wall cylinder and prevent the cylinder from deforming. In the prior art, the thin-wall cylinder body is tightly attached to the clamping jaw after being clamped, so that the friction force is increased, and the thin-wall cylinder body cannot be displaced and deformed in the machining process. Because the thin-wall cylinder body is tightly attached to the clamping jaws after being clamped, the clamping jaws and the inner wall of the thin-wall cylinder body are inevitably worn mutually in the machining process; in the process of loading and unloading the thin-wall cylinder, the clamping jaws also have the risk of scratching the inner wall of the thin-wall cylinder, and if the quality requirement of the inner wall of the thin-wall cylinder is high, the rejection rate of processing the thin-wall cylinder is easily increased, so that the resource waste is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can avoid cylinder inner wall wearing and tearing or scotch cylinder finish machining excircle frock to prior art not enough.

In order to achieve the purpose, the utility model discloses the technical scheme that cylinder finish machining excircle frock adopted is:

the utility model provides a cylinder finish machining excircle frock, is including splicing into a whole round polylith arc, and arc big footpath one side is equipped with the counter bore that is used for connecting lathe chuck, and arc path one side is equipped with the first arc boss that is used for cup jointing the cylinder, is equipped with the elastic component between first arc boss outer peripheral face and the cylinder inner wall, and the elastic component is equipped with the cambered surface that matches with the cylinder inner wall, elastic component rigid coupling slider, and first arc boss outer peripheral face is equipped with the slide of cooperation slider, and the slide is equipped with the tool withdrawal groove by arc one side. In the machining process, the cylinder is tightly matched with the elastic piece to increase the friction force, and then the center on the lathe tailstock is used for propping against the small hole at the tail end of the cylinder, so that the cylinder cannot displace and deform, and the elastic piece protects the inner wall of the cylinder from being abraded; in the cylinder loading and unloading process, the elastic piece separates the outer peripheral surface of the first arc-shaped boss from the inner wall of the cylinder, and the first arc-shaped boss is prevented from scratching the inner wall of the cylinder.

Preferably, the elastic member is polyurethane.

Preferably, the sliding block is a dovetail block, the sliding way is a dovetail groove, and a baffle is arranged at the free end of the dovetail groove. The baffle prevents the dovetail block from falling off from the dovetail groove.

Preferentially, the joint of the arc-shaped plate and the first arc-shaped boss is provided with a second arc-shaped boss. The second arc boss improves the intensity of first arc boss, avoids the stress concentration of arc and first arc boss handing-over department.

Preferably, the bottom of the counter bore is provided with a clamping boss. The clamping boss reduces the processing area of the bottom of the counter bore, and improves the working efficiency.

Compared with the prior art, the utility model, have following advantage:

1. the outer peripheral surface of the first arc-shaped boss is provided with an elastic part, when in machining, the cylinder is tightly matched with the elastic part to increase the friction force, and then the tail end of the cylinder is jacked by the top of the lathe tailstock to be small, so that the cylinder cannot be displaced and deformed, and the inner wall of the cylinder is protected from being abraded by the elastic part; during loading and unloading, the elastic piece separates first arc boss outer peripheral face and cylinder inner wall, avoids first arc boss scotch cylinder inner wall.

2. The elastic piece is connected to the outer peripheral surface of the first arc-shaped boss through the sliding block, and the interchangeability is strong.

Drawings

FIG. 1 is an exploded view of a cylinder finish machining outer circle tool;

FIG. 2 is a schematic structural diagram of a cylinder external circle finishing tool.

The clamping device comprises an arc-shaped plate 1, a counter bore 11, a clamping boss 12, a first arc-shaped boss 13, a dovetail groove 131, a dovetail block 132, a baffle 133, polyurethane 134, an arc 1341, a second arc-shaped boss 14, a tool withdrawal groove 15, a cylinder 2, an inner wall of the cylinder 21, a small hole 22 and an outer circle of the cylinder 23.

Detailed Description

The present invention will be further clarified by the following description in conjunction with the accompanying drawings, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications of the various equivalent forms of the invention by those skilled in the art after reading the present invention are within the scope defined by the appended claims.

As shown in figure 1-2, an air cylinder finish machining excircle tool comprises three arc plates 1 which can be spliced into a whole circle, wherein one side of the major diameter of each arc plate is provided with two counter bores 11 for connecting a lathe chuck, the bottoms of the counter bores are provided with clamping bosses 12 to reduce the processing area of the bottoms of the counter bores and improve the working efficiency, one side of the minor diameter of each arc plate is provided with a first arc boss 13 for sleeving an air cylinder 2, the joint of the first arc boss and the arc plates is provided with a second arc boss 14 to avoid stress concentration at the joint and improve the strength of the first arc boss, a tool withdrawal groove 15 is arranged between the second arc boss and the first arc boss, the outer peripheral surface of the first arc boss is provided with a dovetail groove 131, a dovetail block 132 is slidably matched in the dovetail groove, one end of the dovetail block is abutted against the second arc boss, the other end of the dovetail block is provided with a baffle 133, the baffle is fixedly connected to the outer, the top of the dovetail block is fixedly connected with polyurethane 134, the top of the polyurethane is provided with an arc surface 1341 matched with the inner wall 21 of the cylinder, and the arc surface is matched with the inner wall of the cylinder.

The utility model discloses a concrete working process and principle: the cylinder jacket connects in the first arc boss outside, the operation chuck, three arcs are along its radial outside removal simultaneously, the cambered surface at polyurethane top and the inseparable laminating of cylinder inner wall, increase frictional force, recycle lathe tailstock go up the aperture 22 that the apex withstood the cylinder tail end, start lathe processing cylinder excircle 23, the cylinder can not shift and produce deformation in the course of working, polyurethane protection cylinder inner wall does not receive wearing and tearing, after the processing is accomplished, the reverse operation chuck, three arcs are along its radial inside removal simultaneously, cylinder inner wall takes over on the polyurethane cambered surface, avoid first arc boss scotch cylinder inner wall, after puting aside the tailstock, can take away the cylinder. The utility model discloses inner wall easy wear or scotch when having avoided finish machining cylinder excircle, also be convenient for change after the polyurethane wearing and tearing.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a cylinder finish machining excircle frock which characterized in that: including the polylith arc that can splice into a whole circle, arc big footpath one side is equipped with the counter bore that is used for connecting lathe chuck, and arc path one side is equipped with the first arc boss that is used for cup jointing the cylinder, is equipped with the elastic component between first arc boss outer peripheral face and the cylinder inner wall, and the elastic component is equipped with the cambered surface that matches with the cylinder inner wall, elastic component rigid coupling slider, and first arc boss outer peripheral face is equipped with the slide of cooperation slider, and the slide is equipped with the tool withdrawal groove by arc one side.

2. The cylinder finish machining excircle frock of claim 1, characterized in that: the elastic member is polyurethane.

3. The cylinder finish machining excircle frock of claim 1, characterized in that: the slide block is a dovetail block, the slide way is a dovetail groove, and a baffle is arranged at the free end of the dovetail groove.

4. The cylinder finish machining excircle frock of claim 1, characterized in that: and a second arc-shaped boss is arranged at the joint of the arc-shaped plate and the first arc-shaped boss.

5. The cylinder finish machining excircle frock of claim 1, characterized in that: and a clamping boss is arranged at the bottom of the counter bore.