CN212598951U

CN212598951U - Inner circle tool for finish machining of cylinder

Info

Publication number: CN212598951U
Application number: CN202021400269.6U
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 an interior round frock of cylinder finish machining. This circle frock in cylinder finish machining, including the polylith arc that can splice into a whole circle, the arc is equipped with the counter bore that is used for connecting lathe chuck, the counter bore leans on arc outer wall one side, arc inner wall front end is equipped with the elastic component, the elastic component includes the elastic component body, elastic component body inner wall is equipped with many buffering that are used for centre gripping cylinder excircle protrudingly, buffering is protruding and elastic component body integrated into one piece, the inside skeleton that is equipped with of elastic component body, the skeleton is netted, the one end that the skeleton stretches out the elastic component body is equipped with little turn-ups, the arc inner wall is equipped with the little turn-ups male recess of matching, recess and little turn-ups interference fit, the other end that the skeleton stretches out the elastic component body is equipped with big turn-ups, terminal surface laminating before big turn-ups and the arc. The utility model provides a when finish machining cylinder inner wall, the cylinder excircle easily wears and tears, presss from both sides the problem of hindering or scotch.

Description

Inner circle tool for finish machining of cylinder

Technical Field

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

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 tool for machining the inner wall of the large-caliber thin-walled cylinder with the publication number of CN203542083U solves the problems of clamping deformation, difficult clamping, unstable clamping and slow heat dissipation of the large-diameter thin-walled cylinder. 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 outer circle of the thin-wall cylinder body are inevitably worn mutually in the machining process; in the process of assembling and disassembling the thin-wall cylinder, the clamping jaws also have the risk of damaging or scratching the outer circle of the thin-wall cylinder, and if the quality requirement of the outer circle 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 excircle wearing and tearing, press from both sides interior round frock of hindering or scotch cylinder finish machining.

In order to achieve the above object, the utility model discloses a technical scheme that circle frock adopted in the cylinder finish machining is:

the utility model provides a circle frock in cylinder finish machining, including the polylith arc that can splice into a whole circle, the arc is equipped with the counter bore that is used for connecting lathe chuck, the counter bore leans on arc outer wall one side, arc inner wall front end is equipped with the elastic component, the elastic component includes the elastic component body, elastic component body inner wall is equipped with many buffering of being used for centre gripping cylinder excircle protrudingly, buffering is protruding with elastic component body integrated into one piece, the inside skeleton that is equipped with of elastic component body, the skeleton is netted, the one end that the skeleton stretches out the elastic component body is equipped with little turn-ups, the arc inner wall is equipped with little turn-ups male recess, recess and little turn-ups interference fit, the other end that the skeleton stretches out the elastic component body is equipped with big turn-ups, terminal surface laminating before big turn-ups and the arc. In the machining process, the air cylinder is tightly matched with the elastic piece, so that the friction force is increased, the air cylinder cannot displace and deform, and the outer circle of the air cylinder is protected from being abraded by the elastic piece; in the cylinder loading and unloading process, the inner wall of the arc-shaped plate is separated from the outer circle of the cylinder by the elastic part, so that the inner wall of the arc-shaped plate is prevented from being clamped or scratched on the outer circle of the cylinder.

Preferably, the cross section of the buffering protrusion is semicircular, isosceles triangle or isosceles trapezoid. When the buffering bulges clamp the outer circle of the cylinder, the line contact is gradually changed into the surface contact, and the stability of the outer circle of the clamping cylinder is further improved.

Preferably, the elastic member body is a silica gel pad, a latex pad or a polyurethane pad. The outer circle of the cylinder is protected from being damaged.

Preferably, the framework is made of metal or nylon. The skeleton provides the installation fulcrum for the elastic component.

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.

Preferably, the front end of the outer wall of the arc-shaped plate is provided with a chamfer. The chamfer can not only lead the arc-shaped plate to reduce weight and facilitate clamping, but also increase working space and avoid the operators from colliding and being injured during working.

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

1. the front end of the inner wall of the arc-shaped plate is provided with the elastic part, when in processing, the air cylinder is tightly matched with the elastic part, the friction force is increased, the air cylinder cannot displace and deform, and the outer circle of the air cylinder is protected from being abraded by the elastic part; during loading and unloading, the elastic part separates the inner wall of the arc-shaped plate from the excircle of the cylinder, and the arc-shaped plate is prevented from clamping or scratching the excircle of the cylinder.

2. The elastic component inner wall sets up that the cross-section is semi-circular, isosceles triangle or isosceles trapezoid's buffering is protruding, and when centre gripping cylinder excircle, gradually become the face contact by line contact, further improve the stability of its centre gripping cylinder excircle.

Drawings

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

FIG. 2 is a schematic structural diagram of an inner circle tool for finish machining of a cylinder;

FIG. 3 is an enlarged view of a portion of FIG. 2;

fig. 4 is a schematic structural view of the skeleton.

The elastic part comprises an arc-shaped plate 1, a counter bore 11, an arc-shaped plate outer wall 12, a clamping boss 13, an arc-shaped plate inner wall 14, a groove 15, a chamfer 16, an elastic part 2, an elastic part body 21, a buffering protrusion 22, a framework 23, a small turnup 231, a large turnup 232, a via hole 2321, a cylinder 3, an outer cylinder 31 and an inner cylinder 32.

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 figures 1-4, an inner circle tool for finish machining of an air cylinder comprises three arc plates 1 which can be spliced into a whole circle, counter bores 11 for connecting a lathe chuck are formed in the arc plates, the counter bores are close to one side of the outer wall 12 of the arc plate, clamping bosses 13 are arranged at the bottoms of the counter bores, the machining area of the bottoms of the counter bores is reduced by the clamping bosses, the working efficiency is improved, elastic parts 2 are arranged at the front ends of the inner walls 14 of the arc plates and comprise elastic part bodies 21, the elastic part bodies are silica gel pads, eight buffering protrusions 22 for clamping the outer circle 31 of the air cylinder are arranged on the inner walls of the elastic part bodies, the buffering protrusions and the elastic part bodies are integrally formed, when the buffering protrusions with semicircular sections clamp the outer circle of the air cylinder, line contact is gradually changed into surface contact, the stability of the outer circle of the clamping air cylinder is further improved, frameworks 23 are, the skeleton adopts the nylon material, it is netted, it is more firm reliable that netted makes skeleton and elastic body combine, little turn-ups 231 is arranged to the one end that the skeleton stretches out the elastic component body, the little turn-ups male recess 15 of matching is seted up to the arc inner wall, recess and little turn-ups interference fit, big turn-ups 232 is arranged to the other end that the skeleton stretches out the elastic component body, terminal surface laminating before big turn-ups and the arc, the counter bore is not sheltered from to big turn-ups, do not influence this frock loading and unloading, four via holes 2321 are seted up to big turn-ups, be used for installing the elastic component at arc inner wall front end, chamfer 16 is seted up to arc outer wall front end, the chamfer both can make the arc subtract heavy, the clamping of being convenient for, also can.

The utility model discloses a concrete working process and principle: the cylinder 3 inserts three arc inboards that the concatenation is in the same place, the operation chuck, three arc are along its radial inward movement simultaneously, the semicircular projection of silica gel pad inner wall gradually becomes the face contact with the cylinder excircle by the line contact, frictional force constantly increases, further improve the stability of its centre gripping cylinder excircle, avoid the arc to press from both sides the cylinder excircle, start lathe processing cylinder inner circle 32, the cylinder can not shift and produce the deformation in the course of working, silica gel pad protection cylinder excircle does not receive wearing and tearing, after the processing is accomplished, reverse operation chuck, three arc are along its radial outward movement simultaneously, the cylinder is not hard up, the cylinder excircle is taken on the silica gel pad, avoid arc scotch cylinder excircle when taking out the cylinder. The utility model discloses a silica gel pad arranges between cylinder excircle and arc, and excircle easily wearing and tearing, clamp wound or scotch when having avoided finish machining cylinder inner wall, silica gel pad simple to operate, firm reliable.

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 an interior round frock of cylinder finish machining which characterized in that: including the polylith arc that can splice into a whole circle, the arc is equipped with the counter bore that is used for connecting lathe chuck, the counter bore leans on arc outer wall one side, arc inner wall front end is equipped with the elastic component, the elastic component includes the elastic component body, elastic component body inner wall is equipped with many buffering that are used for centre gripping cylinder excircle protrudingly, buffering is protruding and elastic component body integrated into one piece, the inside skeleton that is equipped with of elastic component body, the skeleton is netted, the one end that the skeleton stretches out the elastic component body is equipped with little turn-ups, the arc inner wall is equipped with the little turn-ups male recess of matching, recess and little turn-ups interference fit, the other end that the skeleton stretches out the elastic component body is equipped with big turn-ups, terminal surface laminating before big turn-ups and the arc, big turn.

2. The inner circle tool for finish machining of the cylinder according to claim 1, wherein: the cross section of the buffering protrusion is semicircular, isosceles triangle or isosceles trapezoid.

3. The inner circle tool for finish machining of the cylinder according to claim 1, wherein: the elastic piece body is a silica gel pad, a latex pad or a polyurethane pad.

4. The inner circle tool for finish machining of the cylinder according to claim 1, wherein: the framework is made of metal materials or nylon materials.

5. The inner circle tool for finish machining of the cylinder according to claim 1, wherein: and a clamping boss is arranged at the bottom of the counter bore.

6. The inner circle tool for finish machining of the cylinder according to claim 1, wherein: and the front end of the outer wall of the arc-shaped plate is provided with a chamfer.