CN203003166U - Combined centre - Google Patents

Combined centre Download PDF

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Publication number
CN203003166U
CN203003166U CN 201220580965 CN201220580965U CN203003166U CN 203003166 U CN203003166 U CN 203003166U CN 201220580965 CN201220580965 CN 201220580965 CN 201220580965 U CN201220580965 U CN 201220580965U CN 203003166 U CN203003166 U CN 203003166U
Authority
CN
China
Prior art keywords
centre
workpiece
drive plate
driver plate
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220580965
Other languages
Chinese (zh)
Inventor
马玉山
张忠原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yongcheng Coal and Electricity Holding Group Co Ltd
Original Assignee
Yongcheng Coal and Electricity Holding Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yongcheng Coal and Electricity Holding Group Co Ltd filed Critical Yongcheng Coal and Electricity Holding Group Co Ltd
Priority to CN 201220580965 priority Critical patent/CN203003166U/en
Application granted granted Critical
Publication of CN203003166U publication Critical patent/CN203003166U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A combined centre comprises a centre body, a spring, a centre and a drive plate. A hole is formed in the center of the drive plate, one end portion of the drive plate is sawtooth-shaped, the centre body is conical, one end of the centre body is hollow and connected at the other end of the drive plate through threads; and the spring is installed in the centre body, the centre is installed in the hole formed in the center of the drive plate, and the tail portion of the centre is arranged in the centre body and contacted with the spring. The centre is simple in structure and convenient to machine, manufacture and use, and transmits power depending on friction force produced by pressure between the drive plate and a workpiece end face; the rotation of a lathe spindle drives the rotation of the centre, and the centre drives a workpiece to rotate; the centre not only has the functions of centering the workpiece and guaranteeing that the workpiece and the lathe spindle are cocentric, but also has the functions of controlling the workpiece and guaranteeing the workpiece rotates along with the rotation of a chuck when the workpiece turning is performed; and the combined centre can enable workpiece installation steps to be reduced when used for machining certain special shaft-like workpieces, and machining operation efficiency is significantly improved.

Description

A kind of combination is top
Technical field
The utility model relates to the instrument that a kind of mechanical processing industry machining is used.
Background technology
Turning processing is the most widely used a kind of manufacturing process of mechanical processing industry.Use lathe to carry out turning to axial workpiece and add man-hour, common processing method is: workpiece one end is used top the withstanding that is installed on tailstock, the other end tightens with lathe chuck, start lathe, chuck rotarily drives workpiece rotating, then operate delivering gear, cutter near workpiece after, will scratch the required part of removing of surface of the work.If operate simultaneously feed mechanism, cutter is moved along the axis of workpiece direction, just can realize continuous cutting.
Before using the lathe turning axial workpiece, workpiece is installed needs following four steps usually: 1. first the claw on chuck and tailstock are adjusted to the appropriate location, fix tailstock.Select suitable top (generally selecting common live center) to install on tailstock; 2. pick up workpiece, workpiece one end is by the top support of centre bore, and the other end is placed on chuck jaws; 3. tighten claw, clamping work pieces after adjusting suitably; 4. shake the tailstock handwheel, make top top tight workpiece, lock top.Workpiece is installed and is finished, and just can enter processing link afterwards.
For the workpiece of batch machining, no longer repeat after 1. above step is once completed, then workpiece of three every replacings of step all will come again, and is time-consuming, inefficiency.
Summary of the invention
The purpose of this utility model is: design a kind of combination top, it is existing to workpiece centering, guarantee the workpiece effect concentric with lathe spindle, control again workpiece, guarantee the effect that workpiece rotates with chuck, when processing some special shaft-like workpiece with it, the installation steps of workpiece are reduced, improve working (machining) efficiency.
Realize that the technical scheme that the utility model purpose is taked is: it comprises top body, spring, top and driver plate, and a hole is arranged in the middle of driver plate, and driver plate one end end is zigzag, and top body is taper, and an end hollow is through being threaded in the driver plate other end; Spring fitting is in top body, and in the top hole that is arranged in the middle of driver plate, its afterbody is located in top body and spring contact.
Radially evenly be provided with four blind holes on the driver plate outer surface.
Good effect of the present utility model is: simple in structure, and processing, making, easy to use, by the frictional force transferring power that the pressure between driver plate and workpiece end face produces, lathe spindle rotarily drives top rotation, top drive workpiece rotating; It is existing to workpiece centering, and it can guarantee the effect that workpiece and lathe spindle are concentric, controls again workpiece, the effect that when guaranteeing turner, workpiece rotates with chuck; When processing some special shaft-like workpiece with it, the installation steps of workpiece are reduced, the processing operating efficiency obviously improves.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model; Accompanying drawing 2 is the left view of accompanying drawing 1.
The specific embodiment
As shown in accompanying drawing 1,2, it comprises top body 1, spring 2, top 3 and driver plate 4, and a hole is arranged in the middle of driver plate 4, and driver plate 4 one end ends are zigzag 5, and top body 1 is taper, and an end hollow is through being threaded in driver plate 4 other ends; Spring 2 is arranged in top body 1, and in top 3 holes that are arranged in the middle of driver plate 4, its afterbody is located in top body 1 and contacts with spring 2.Radially evenly be provided with four blind holes 6 on driver plate 4 outer surfaces.
Top body 1, material top 3, driver plate 4 are all optional, and the three will heat-treat with tool steel or quenched and tempered steel, and top 3 tip will be through Quenching Treatment; Compression tooth on driver plate 4 will be processed through surface hardening; Top 3 and top body 4 endoporus between, top 3 and driver plate 4 endoporus between all adopt matched in clearance, both guaranteed top 3 activities freely, simultaneously top 3 positioning function also wants reliable; With being threaded, be processed with four blind holes 6 on driver plate 4 between top body 1 and driver plate 4, can use hook spanner dismounting driver plate 4; Top body 1 profile standard cone, tapering is Morse's taper No.5.
With the utility model working shaft-like part, the installation method of workpiece is: 1. the utility model is contained in the chuck spindle hole; Common live center still is installed on tailstock, is adjusted the tailstock position, fix tailstock.When 2. workpiece being installed, workpiece two ends all by the centre bore processed with two top supports.3. then shake the tailstock handwheel, top stretching out on tailstock promotes the workpiece reach, until make up the driver plate top tight workpiece end face on top, then locks tailstock, just can begin to have processed.Like this, during the batch machining workpiece, workpiece is installed is at every turn only needed two actions.

Claims (2)

1. a combination is top, and it is characterized in that: it comprises top body, spring, top and driver plate, and a hole is arranged in the middle of driver plate, and driver plate one end end is zigzag, and top body is taper, and an end hollow is through being threaded in the driver plate other end; Spring fitting is in top body, and in the top hole that is arranged in the middle of driver plate, its afterbody is located in top body and spring contact.
2. combination according to claim 1 is top, it is characterized in that: radially evenly be provided with four blind holes on the driver plate outer surface.
CN 201220580965 2012-11-07 2012-11-07 Combined centre Expired - Fee Related CN203003166U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220580965 CN203003166U (en) 2012-11-07 2012-11-07 Combined centre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220580965 CN203003166U (en) 2012-11-07 2012-11-07 Combined centre

Publications (1)

Publication Number Publication Date
CN203003166U true CN203003166U (en) 2013-06-19

Family

ID=48594799

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220580965 Expired - Fee Related CN203003166U (en) 2012-11-07 2012-11-07 Combined centre

Country Status (1)

Country Link
CN (1) CN203003166U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103418809A (en) * 2013-09-11 2013-12-04 浙江海德曼机床制造有限公司 Thimble and turning method for strip-shaped workpiece
CN105603362A (en) * 2016-01-06 2016-05-25 庄增信 Center device with hardness-strengthened conical cusp
CN108637288A (en) * 2018-05-18 2018-10-12 杭州世宝汽车方向机有限公司 Self-centering driving tooling

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103418809A (en) * 2013-09-11 2013-12-04 浙江海德曼机床制造有限公司 Thimble and turning method for strip-shaped workpiece
CN103418809B (en) * 2013-09-11 2016-01-20 浙江海德曼机床制造有限公司 The method for turning of a kind of thimble and strip-shaped work
CN105603362A (en) * 2016-01-06 2016-05-25 庄增信 Center device with hardness-strengthened conical cusp
CN108637288A (en) * 2018-05-18 2018-10-12 杭州世宝汽车方向机有限公司 Self-centering driving tooling

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130619

Termination date: 20131107