CN206277308U - The accurate centring means of inner circle - Google Patents
The accurate centring means of inner circle Download PDFInfo
- Publication number
- CN206277308U CN206277308U CN201720095196.6U CN201720095196U CN206277308U CN 206277308 U CN206277308 U CN 206277308U CN 201720095196 U CN201720095196 U CN 201720095196U CN 206277308 U CN206277308 U CN 206277308U
- Authority
- CN
- China
- Prior art keywords
- bearing pin
- pin body
- hole
- guide plate
- expanding block
- 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
Links
Landscapes
- Insertion Pins And Rivets (AREA)
Abstract
The utility model is related to a kind of accurate centring means of inner circle, solves the problems, such as that a current hole one is sold.Including bearing pin body, guide plate and swelling system, swelling system includes three expanding blocks, three guide plates, three springs, one steel ball and a driving leading screw, three guide plates are uniformly fixedly mounted on bearing pin body periphery into 120 °, radius of the outer arc radius of guide plate less than bearing pin body, expanding block is step shaft-like, big end head carries the conical surface, small end is arranged in the pilot hole being provided with guide plate, spring is installed between the big end of expanding block Step Shaft and guide plate and spring housing is on expanding block Step Shaft small end, hole is provided with the axle center of bearing pin body, the conical surface of the big end head of expanding block Step Shaft is stretched into the hole at bearing pin body axle center, contacted with the steel ball in hole at bearing pin body axle center, leading screw is driven to be screwed in the hole at bearing pin body axle center, lower end contacts with steel ball.The utility model can realize that the circular hole of different-diameter is accurately positioned, simple to operate, accurate positioning reliability.
Description
Technical field：
The utility model is related to a kind of centring means, and in particular to a kind of accurate centring means of inner circle.
Technical background：
In machinery industry, domestic conventional inner circle keeper is generally straight pin, rhombus pin at present, accurate to positioning requirements
True use taper pin.Straight pin, rhombus pin setting accuracy are low, though taper pin is compared with accurate positioning, its stability is poor.These positioning
Pin can not be adjusted, and can only be manufactured into the pin of a hole one, and manufacturing cost is higher, the need for being unfavorable for that the fast quick change of high-volume is produced.
Utility model content：
The utility model replaces traditional cylinder by providing a kind of centring means of " pin is porous " precise positioning
Pin, rhombus pin and taper pin, solve that the current pin of a hole one manufacturing cost is higher, are unfavorable for that the fast quick change of high-volume produces asking of needing
Topic.
The utility model is realized by following technical scheme：
A kind of accurate centring means of inner circle, including bearing pin body, guide plate and swelling system, swelling system include three swellings
Block, three guide plates, three springs, a steel ball and a driving leading screws, three guide plates are uniformly fixedly mounted on bearing pin into 120 °
On body periphery, the radius of the outer arc radius less than bearing pin body of guide plate, expanding block is step shaft-like, and big end head is with cone
Face, small end is arranged in the pilot hole being provided with guide plate, and spring and bullet are provided between the big end of expanding block Step Shaft and guide plate
Spring is enclosed within expanding block Step Shaft small end, and hole is provided with the axle center of bearing pin body, and the conical surface of the big end head of expanding block Step Shaft is stretched into
In hole at bearing pin body axle center, contacted with the steel ball in hole at bearing pin body axle center, drive leading screw to be screwed in bearing pin body axle center
In the hole at place, lower end contacts with steel ball.
The utility model can realize that the circular hole of different-diameter (in the adjusting range of centring means) is accurately positioned, operation
Simply, conveniently, small volume, lightweight, accurate positioning, reliability, low cost of manufacture.
Brief description of the drawings：
Fig. 1 is the utility model structural representation；
Fig. 2 is the A direction views of Fig. 1；
Fig. 3 is the B-B sectional views (guide plate structure schematic diagram) of Fig. 2.
Specific embodiment：
As Figure 1-3, the utility model is a kind of accurate centring means of inner circle, including bearing pin body 1, guide plate 2 and swelling
System, swelling system includes three 2, three, guide plate spring, 3, steel balls 8 of expanding block 5, three and a driving leading screw 7, three
120 ° of individual 2 one-tenth of guide plate is uniformly fixedly mounted on the periphery of bearing pin body 1, and the outer arc radius of guide plate 2 are less than the half of bearing pin body 1
Footpath, expanding block 5 is step shaft-like, and big end head carries the conical surface, and small end is arranged in the pilot hole being provided with guide plate 2, expanding block 5
Spring 3 is installed between the big end of Step Shaft and guide plate 2 and spring 3 is enclosed within the Step Shaft small end of expanding block 5, the axle of bearing pin body 1
Hole is provided with the heart, the conical surface of the big end head of the Step Shaft of expanding block 5 is stretched into the hole at the axle center of bearing pin body 1, and installed in bearing pin body 1
Steel ball 8 at axle center in hole is contacted, and drives leading screw 7 to be screwed in the hole at the axle center of bearing pin body 1, and lower end contacts with steel ball 8.Using one
The circular hole that individual bearing pin can meet different-diameter (in the adjusting range of centring means) is accurately positioned.
By adjusting the extension elongation of three expanding blocks 5 (120 ° uniform), being accurately positioned for centring means is met.Bearing pin body
There are six uniform screwed holes 41 upper surface, for the device fastening with needing positioning, can also increase positioning pin connection.
The upper design of leading screw 7 is driven into outer six side, and three equal cloth holes 6 are opened on six sides, be easy to wrench or crowbar to screw.
Three expanding blocks 5 are slided relative to bearing pin body 1 and along guide plate 2 is simultaneously accurate.Positioning is stretched out by driving leading screw 7 to extrude
Steel ball 8 is moved, and steel ball 8 extrudes the inclined-plane at three expanding blocks 5 end greatly simultaneously, and the small end of expanding block 5 stretches out fixed with the swelling of workpiece hole wall
Position；Derotation drives leading screw 7, is retracted by the effect expanding block of spring 3 and releases positioning.
The outer arc radius of guide plate 2 are less than the radius of bearing pin body 1, are designed with guide plate 2 for leading that expanding block 2 is slided
To the bolt hole 11 of hole 12 and resting guide 2, pinhole 13, guide plate 2 is separately fixed at bearing pin body 1 with bolt 9 and pin 10
Side face (120 ° uniform), it is ensured that the mounting hole axiality of expanding block 5 on pilot hole 12 and bearing pin body 1 is full within φ 0.02
Sufficient expanding block 5 is accurately slided relative to bearing pin body 1.
During work, according to workpiece (positioner) the need for, the bearing pin body 1 of centring means is fastened with it with bolt, must
Will when increase positioning pin connection, positioner is integrated with centring means.During positioning, bearing pin body 1 is arranged in location hole,
Driving leading screw 7 is screwed with instrument (wrench or crowbar), driving leading screw is extruded steel ball 8 and is moved, steel ball extrudes three swellings simultaneously
The inclined-plane of block 5, three expanding blocks stretch out simultaneously and with workpiece location hole medial surface exact contact, realize " gapless " positioning；Solution
During except positioning, reversely rotate and drive leading screw 7, release it to steel ball 8 and the pressure of three expanding blocks 5, three are made by the effect of spring 3
Expanding block 5 is retracted, and dismantles positioner.
The utility model in the course of the work, meets positioner with the pinpoint requirement of circular hole.By various
Using practice on positioner, registration is simple, convenient；Meanwhile, a kind of centring means of specification (bearing pin) can be with
The circular hole for meeting different-diameter (in the adjusting range of centring means) is accurately positioned, and realizes the precisely fixed of " pin is porous "
Position.
Claims (1)
1. the accurate centring means of a kind of inner circle, it is characterized in that：Including bearing pin body, guide plate and swelling system, swelling system includes three
Individual expanding block, three guide plates, three springs, a steel ball and a driving leading screws, three guide plates are uniformly fixedly mounted into 120 °
On bearing pin body periphery, the radius of the outer arc radius less than bearing pin body of guide plate, expanding block is step shaft-like, big end head band
There is the conical surface, small end is arranged in the pilot hole being provided with guide plate, and spring is provided with simultaneously between the big end of expanding block Step Shaft and guide plate
And spring housing is on expanding block Step Shaft small end, hole, the conical surface of the big end head of expanding block Step Shaft are provided with the axle center of bearing pin body
Stretch into the hole at bearing pin body axle center, contacted with the steel ball in hole at bearing pin body axle center, drive leading screw to be screwed in bearing pin body
In hole at axle center, lower end contacts with steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720095196.6U CN206277308U (en) | 2017-01-24 | 2017-01-24 | The accurate centring means of inner circle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720095196.6U CN206277308U (en) | 2017-01-24 | 2017-01-24 | The accurate centring means of inner circle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206277308U true CN206277308U (en) | 2017-06-27 |
Family
ID=59072071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720095196.6U Expired - Fee Related CN206277308U (en) | 2017-01-24 | 2017-01-24 | The accurate centring means of inner circle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206277308U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350854A (en) * | 2017-09-06 | 2017-11-17 | 广西玉柴机器股份有限公司 | The positioner at cylinder block cylinder holes center |
| CN107790762A (en) * | 2017-11-22 | 2018-03-13 | 成都齐平科技有限公司 | A kind of interchangeable cutter of cutter head and its connected mode of interchangeable cutter head and knife bar |
| CN109079025A (en) * | 2018-06-26 | 2018-12-25 | 安徽昊方机电股份有限公司 | A kind of flexibly positioned core |
-
2017
- 2017-01-24 CN CN201720095196.6U patent/CN206277308U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107350854A (en) * | 2017-09-06 | 2017-11-17 | 广西玉柴机器股份有限公司 | The positioner at cylinder block cylinder holes center |
| CN107790762A (en) * | 2017-11-22 | 2018-03-13 | 成都齐平科技有限公司 | A kind of interchangeable cutter of cutter head and its connected mode of interchangeable cutter head and knife bar |
| CN107790762B (en) * | 2017-11-22 | 2019-10-01 | 成都齐平科技有限公司 | A kind of connection type of the cutter that cutter head is interchangeable and its interchangeable cutter head and knife bar |
| CN109079025A (en) * | 2018-06-26 | 2018-12-25 | 安徽昊方机电股份有限公司 | A kind of flexibly positioned core |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206277308U (en) | The accurate centring means of inner circle | |
| CN204449915U (en) | A kind of frock clamp for processing gate valve sealing surface | |
| CN207873963U (en) | A kind of flexible sheet positioning device | |
| CN206671038U (en) | A kind of diaphragm spring is general to suppress mould | |
| CN201419329Y (en) | Clamping device for drilling machine | |
| CN210209533U (en) | Internal expansion type precision turning clamp | |
| CN208801041U (en) | For the completely new perforating device of oblate column side wall punching | |
| CN207229659U (en) | A kind of rotary body damping mechanism | |
| CN108247369B (en) | But rotation angle's clamping device | |
| CN114888326B (en) | drilling device for roller shaft diameter | |
| CN211454934U (en) | Rotatable teaching board for teaching | |
| CN220568553U (en) | Embedded special fixture of tensile test | |
| CN220533600U (en) | General hub machining positioning tool | |
| CN219925321U (en) | Zero point positioning conversion jig for machine tool | |
| CN213559489U (en) | Precise hardware stamping die capable of stamping at multiple angles | |
| CN219189107U (en) | Adjustable welding fixture | |
| CN218800693U (en) | Piston pin hole depth angle adjusting clamp | |
| CN203945153U (en) | Back cover of motor drilling-hole positioning device | |
| CN214447526U (en) | Hollow drill positioning device | |
| CN221051995U (en) | Pipeline positioning regulator | |
| CN112589155B (en) | Side jacking device of double-roller rolling mill | |
| CN202894795U (en) | Stainless steel pump outer barrel body tool | |
| CN214162090U (en) | Air hole punching angle adjusting workbench for semisteel two-half die | |
| CN213889136U (en) | Superfine punching equipment for finish machining of die | |
| CN220113066U (en) | Positioning device for polishing mechanical sealing piece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170627 Termination date: 20180124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |