CN207127535U

CN207127535U - A kind of thin-wall pipes cut-out fixture

Info

Publication number: CN207127535U
Application number: CN201721074384.7U
Authority: CN
Inventors: 高永�; 任永强; 岳强; 吕祥勇; 俞海平
Original assignee: NORTHWEST ZIRCOCLADDING CO Ltd
Current assignee: NORTHWEST ZIRCOCLADDING CO Ltd
Priority date: 2017-08-25
Filing date: 2017-08-25
Publication date: 2018-03-23
Anticipated expiration: 2027-08-25

Abstract

A kind of thin-wall pipes cut-out fixture disclosed in the utility model, including at least two pieces of valve blocks, hold the annular for surrounding closing between adjacent two pieces of valve blocks tightly by Flexible Connector, the relevant position of every piece of valve block is carved provided with groove, sunk into all valve block bandings using dismountable fixture in groove.A kind of thin-wall pipes cut-out of the present utility model solves the problems, such as that the cut-out that existing clamp structure is complicated, efficiency is low, is not suitable for high-volume thin-wall pipes requires with fixture.A kind of thin-wall pipes cut-out fixture of the present utility model, with simple in construction, it is easily installed, strong applicability, the features such as reliable operation, used suitable for rigid grasp and Flexible Fixturing environment, split-type structure is advantageous to be cut the radially even stress of light-wall pipe, the in addition use of rubber spring, there is cushioning effect for the clamping force suffered by thin-wall pipes, so as to avoid thin-wall pipes from being deformed upon during Pipe Cutting because of chucking power inequality or its outer surface quality is had an impact.

Description

A kind of thin-wall pipes cut-out fixture

Technical field

The utility model belongs to clamping device technical field, and in particular to a kind of thin-wall pipes cut-out fixture.

Background technology

Polishing machine is in the process of running, it is necessary to reach the purpose of polishing using the revolution at a high speed in abrasive band, due to producing The influence of each side factor, such as aqueous medium in journey, abrasive band itself abrasion etc., deflection occurs for abrasive band or what can not be tensioned completely ask Topic, it is due to abrasive band tensioning apparatus damaged themselves to trace it to its cause, such as corrosion or deformation, causes tensile force suffered by abrasive band uneven Even, the problem of so as to cause abrasive band deflection occur or can not be tensioned completely, abrasive band is not in good state, and then can be to polished tubing Surface quality has an impact, such as the defects of aberration, scuffing.

The applying date is on November 29th, 2010, Application No. 201010563864.6, publication date be on April 13rd, 2011, A kind of Publication No. CN 102009363A lathe fixture for thin-wall piece of patent application publication, solves problem of workpiece deformation.The invention is thin Wall pieces vehicle clamper includes two sleeve clamps：Turning clamp and car internal clamp；Turning clamp is the face on the basis of workpiece end face, Workpiece end face is pressed in gland, gland diameter is less than workpiece nominal diameter；Car internal clamp is that clamp body clamps excircle of workpiece, folder Specifically it is welded on chuck jaw.Cut off tubing requires not so its end face squareness must easily cause pipe in tolerance zone There is inclined-plane situation to material in end face after severance, and utility model requirement contacts with internal surface of pipe during cut-out, not only easily makes Need to design different clamp systems into the scuffing of internal surface of pipe, while for different tube diameters, applicability is not high；Each Pipe Cutting When be required for installing and adjusting gland, it is less efficient.

The applying date is on July 11st, 2011, Application No. 201110202096.6, publication date are on January 25th, 2012, public The number of opening is that CN 102328220A patent application is related to the technical field of fixture, more particularly to a kind of fluidity plastic thin-wall sleeve Fixture.This fluidity plastic thin-wall sleeve fixture includes supporting nail, liquid plasticses, thin walled cylinder body, promotes plunger and turn screw, The supporting screw top lives end face, and thin walled cylinder body is provided with liquid plasticses, is provided with thin walled cylinder body and promotes plunger and turn screw, pushed away Dynamic screw, which is placed in, to be promoted in plunger.The clamp structure can not adapt to realize cut-out in the equipment such as lathe, not be suitable for large quantities of The thin-wall pipes cut-out operation of amount, it is less efficient；Secondly, the inner plunger of the fixture can cause to draw to the inner surface of tubing termination Wound；Operating process is complicated, and for the clamping for the very high rare metal light-wall pipe of surface quality requirements, easily causes surface Rub the defects of hindering；

The applying date is on 2 18th, 2014, Application No. 201410054157.2, publication date are August in 2015 19, public The number of opening is the thin cylinder clamp for machining disclosed in CN 104842179A patent application, including chuck and cushion cover, chuck and pad Cover and be arranged on for loop configuration, cushion cover in chuck, the installation gap for installing thin cylinder is provided between cushion cover and chuck, Axis is provided with opening groove on chuck.The fixture realizes the clamping action to thin-wall pipes by inside and outside two benchmark, But Internal hole positioning benchmark can cause to scratch to the inner surface of tubing termination, the very high rare metal of surface quality requirements is not suitable for The clamping requirement of light-wall pipe.

The applying date is on December 24th, 2014, Application No. 201410813808.1, publication date are on April 8th, 2015, public The number of opening is that CN 104493230A patent application discloses a kind of thin-wall pipe Excircle machining fixture, including mandrel, chuck and top Set, the end of mandrel is provided with the elastic conehead of bigger diameter end outwardly；Chuck is sheathed on mandrel, and the outer wall of chuck is provided with projection, Expansion sleeve is also arranged with positioned at raised inner side on the outer wall of chuck, one group of pressurization hole is provided with chuck；Top cover is sheathed on mandrel Upper to be provided with two cylinders positioned at the inner side of chuck, the outer wall of top cover, the center line of two cylinders is located on the same line, and two The bottom of individual cylinder is equipped with spring, and the end of spring is provided with fore-set, and end of the top cover away from chuck is additionally provided with for locking core The locking nut of axle.

For large batch of thin-wall pipes Cutting process, the structure of said mechanism is excessively complicated, and cut-out every time is intended to The relatively large installation of workload and discharge process are completed, efficiency is low, is not suitable for the cut-out requirement of large batch of thin-wall pipes.

Utility model content

The purpose of this utility model is to provide a kind of thin-wall pipes cut-out fixture, solves existing clamp structure and answer Miscellaneous, efficiency is low, is not suitable for the cut-outs of high-volume thin-wall pipes the problem of requiring.

Technical scheme is used by the utility model：A kind of thin-wall pipes cut-out fixture, including at least two pieces of valve blocks, Hold the annular for surrounding closing between adjacent two pieces of valve blocks tightly by Flexible Connector, the relevant position of every piece of valve block is carved provided with recessed Groove, sunk into all valve block bandings using dismountable fixture in groove.

The characteristics of the utility model, also resides in,

Flexible Connector is spring.

Flexible Connector is rubber spring.

Fixture is clip.

The inner surface of valve block has supple buffer layer.

The beneficial effects of the utility model are：A kind of thin-wall pipes cut-out of the present utility model solves existing with fixture Clamp structure is complicated, efficiency is low, is not suitable for the cut-outs of high-volume thin-wall pipes the problem of requiring.One kind of the present utility model Thin-wall pipes cut-out fixture, has simple in construction, is easily installed, strong applicability, the features such as reliable operation, suitable for rigid folder Tight and Flexible Fixturing environment uses, and split-type structure is advantageous to be cut the radially even stress of light-wall pipe, in addition rubber spring Use, there is cushioning effect for the clamping force suffered by thin-wall pipes, so as to avoid thin-wall pipes during Pipe Cutting because folder Holding force is uneven and deforms upon or its outer surface quality is had an impact.

Brief description of the drawings

Fig. 1 is a kind of structural representation of thin-wall pipes cut-out fixture of the present utility model；

Fig. 2 is a kind of thin-wall pipes cut-out fixture sampling clamp position schematic diagram of the present utility model.

In figure, 1. valve blocks, 2. clips, 3. Flexible Connectors.

Embodiment

The utility model is described in detail with reference to the accompanying drawings and detailed description.

A kind of structure of thin-wall pipes cut-out fixture provided by the utility model as depicted in figs. 1 and 2, including at least two Block valve block 1, it is preferred that valve block 1 is arranged to three pieces.The ring of closing is surrounded between adjacent two pieces of valve blocks 1 by Flexible Connector 3 Shape, the relevant position of every piece of valve block 1 are carved provided with groove, sink into bind round all valve blocks 1 in groove using dismountable fixture Tightly.Preferably, Flexible Connector 3 is spring.Further, Flexible Connector 3 can be selected as rubber spring.

Example, dismountable fixture is clip 2.

Preferably, the inner surface of valve block 1 has supple buffer layer.Further, valve block 1 is overall can use organic material Material processing, its flexible interior surface can protect the surface of thin-wall pipes, prevent from scratching.

Then three pieces of valve blocks 1 of the present utility model utilize clip 2 to wait form-separating to be linked together by 3 rubber springs It is fixed, keeps three flap states, and through hole is formed at middle holding.

In use, the utility model is clamped in into revolution driving output end, as at lathe swivel head, at milling machine tool rest or brill It is in pre- clamped condition after force at bed drillstock.Then cut-off thin-wall pipes are cut through a kind of thin-wall pipes of the utility model The endoporus of disconnected fixture, pretightning force is increased, until moving or bounce do not occur in fixture for tubing.Revolution driving end is opened, just The cutting-off process of thin-wall pipes can be realized.

The inner surface of valve block 1 is had supple buffer layer or is directly process using organic material, and its flexible characteristic has Tube surfaces are cut off beneficial to protection, for rare metal light-wall pipe, can play and protect its surface not to be scratched； Rubber spring is provided between valve block 1 to connect, when the cutting force that light-wall pipe receives is excessive, can play cushioning effect, that is, is utilized certainly The speciality of body caoutchouc elasticity, to beyond cutting force enter row buffering, so as to ensure the stability of pipe clamping, and avoid tubing should Stress is excessive and deforms upon.

Claims

A kind of 1. thin-wall pipes cut-out fixture, it is characterised in that including at least two pieces of valve blocks (1), adjacent two pieces of valve blocks (1) annular for surrounding closing is held between tightly by Flexible Connector (3), the relevant position of every piece of valve block (1), which is carved, to be provided with Groove, sunk into all valve block (1) bandings using dismountable fixture in the groove.
2. a kind of thin-wall pipes cut-out fixture as claimed in claim 1, it is characterised in that the Flexible Connector (3) is Spring.
A kind of 3. thin-wall pipes cut-out fixture as claimed in claim 1 or 2, it is characterised in that the Flexible Connector (3) For rubber spring.
4. a kind of thin-wall pipes cut-out fixture as claimed in claim 1, it is characterised in that the fixture is clip (2).
A kind of 5. thin-wall pipes cut-out fixture as claimed in claim 1, it is characterised in that the inner surface of the valve block (1) With supple buffer layer.