CN201147881Y - Lathe centre frame - Google Patents
Lathe centre frame Download PDFInfo
- Publication number
- CN201147881Y CN201147881Y CNU2008200691230U CN200820069123U CN201147881Y CN 201147881 Y CN201147881 Y CN 201147881Y CN U2008200691230 U CNU2008200691230 U CN U2008200691230U CN 200820069123 U CN200820069123 U CN 200820069123U CN 201147881 Y CN201147881 Y CN 201147881Y
- Authority
- CN
- China
- Prior art keywords
- arc
- support bar
- supporting
- rack
- lathe
- 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
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a lathe central rack which comprises a circular rack which can be opened and closed; supporting posts capable of expanding in the radial direction are evenly distributed on the inner ring of the circular rack; the inner end of each supporting post is provided with a rolling element used to support a work piece; the inner end of the supporting post is connected with an arc-shaped plate; the rolling element is rotationally assembled on the arc-shaped plate; bearings or rollers of the lathe central rack are arranged on the expansion posts by the arc-shaped plates which can swing to form a plurality of floating supporting points used to support the outer circular parts; the floating supporting points can improve the rigidity and the stability of the original central rack, thereby having better effect than the original way that the bearings are directly connected with the supporting posts, and increasing the rotating speed of the common central racks by about three times and improving the production efficiency by about twice.
Description
Technical field
The utility model relates to the lathe equipments technical field, especially a kind of lathe centre frame.
Background technology
But the traditional lathe centre frame comprises the annular frame of folding, annular frame is connected and composed by upper frame and lower frame, be evenly distributed with the centering part of three expandables on the circle ring inner wall of annular frame, each centering part all is to be made of telescopic support bar and inner single roller or the bearing that assembles of support bar that radially is inserted in annular frame inside.This centre frame is by single roller or bearings workpiece on its inner support bar, because the contact-making surface of single roller or bearing and workpiece is less and each roller between do not get in touch, each roller of the centre frame of this structure or the pressure of bearing are bigger, and rigidity and stability are limited.
The utility model content
The purpose of this utility model is to provide that a kind of single roller shares that pressure is less, rigidity and stability lathe centre frame preferably.
The technical solution of the utility model is: the lathe centre frame, but the toroidal frame that comprises folding, be evenly equipped with the support bar of expandable along the inner ring of toroidal frame, be equipped with the rolling element that is used for supporting workpiece on the inner of each support bar, the inner of described support bar is connected with arc, and described rolling element rotates and is assemblied on the arc.
Arc on described each support bar is on the same circumference.
The middle part of described arc is hinged by the inner of bearing pin and support bar, is equipped with at least two rotors that are distributed in the arc two ends on each arc.
Described arc two ends have mounting groove, and described rotor rotates by bearing pin and is assemblied in the mounting groove.
Bearing of the present utility model or roller are to be assemblied on each expansion link by the arc that can swing, form a plurality of floating support points that are used for supporting the outer ring part, relocatable strong point can increase former centre frame rigidity and stability, result of use more direct than original bearing and the support bar ways of connecting is good, can make generic central frame rotating speed improve about 3 times, production efficiency improves about 2 times.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of arc gripper shoe of the present utility model;
Fig. 3 is the vertical view of Fig. 2.
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3, toroidal frame 1 of the present utility model is by last, lower frame is hinged to form, inner ring along toroidal frame 1 is evenly equipped with three radial holes, be inserted with telescopic support bar 2 in each radial hole, the inner of each support bar 2 all is hinged with arc 3, the middle part of arc 3 is hinged by bearing pin 4 the inner with support bar 2, two outer ends of arc 3 respectively are rotatably equipped with a bearing 6,3 liang of outer ends of arc have mounting groove 8, bearing 6 rotates by bearing pin 5 and is assemblied in the mounting groove 8, three arcs 3 be in the concentric same circumference of toroidal frame 1 on, amount to six bearings on three expansion links 2 and can form six floating support points, be used for supporting outer ring part 7, can increase former centre frame rigidity and stability.
Claims (4)
1, lathe centre frame, but the toroidal frame that comprises folding, be evenly equipped with the support bar of expandable along the inner ring of toroidal frame, be equipped with the rolling element that is used for supporting workpiece on the inner of each support bar, it is characterized in that: the inner of described support bar is connected with arc, and described rolling element rotates and is assemblied on the arc.
2, lathe centre frame according to claim 1 is characterized in that: the arc on described each support bar is on the same circumference.
3, lathe centre frame according to claim 1 and 2 is characterized in that: the middle part of described arc is hinged by the inner of bearing pin and support bar, is equipped with at least two rotors that are distributed in the arc two ends on each arc.
4, lathe centre frame according to claim 3 is characterized in that: described arc two ends have mounting groove, and described rotor rotates by bearing pin and is assemblied in the mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200691230U CN201147881Y (en) | 2008-01-23 | 2008-01-23 | Lathe centre frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200691230U CN201147881Y (en) | 2008-01-23 | 2008-01-23 | Lathe centre frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201147881Y true CN201147881Y (en) | 2008-11-12 |
Family
ID=40115648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200691230U Expired - Fee Related CN201147881Y (en) | 2008-01-23 | 2008-01-23 | Lathe centre frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201147881Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240912A (en) * | 2010-05-12 | 2011-11-16 | 江苏海恒建材机械有限公司 | Floating supporting mechanism for processing outer surface of workpiece with high quality and large draw ratio |
| CN106584270A (en) * | 2016-12-15 | 2017-04-26 | 常州天山重工机械有限公司 | Special fixture applicable to long-barrel type internal grinding machine |
| CN106625332A (en) * | 2016-12-08 | 2017-05-10 | 无锡市彩云机械设备有限公司 | Abrasion-resistance part clamp |
| CN113146297A (en) * | 2021-04-05 | 2021-07-23 | 厦门戴承贸易有限公司 | Self-centering metal pipe stable clamping auxiliary equipment |
-
2008
- 2008-01-23 CN CNU2008200691230U patent/CN201147881Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240912A (en) * | 2010-05-12 | 2011-11-16 | 江苏海恒建材机械有限公司 | Floating supporting mechanism for processing outer surface of workpiece with high quality and large draw ratio |
| CN106625332A (en) * | 2016-12-08 | 2017-05-10 | 无锡市彩云机械设备有限公司 | Abrasion-resistance part clamp |
| CN106584270A (en) * | 2016-12-15 | 2017-04-26 | 常州天山重工机械有限公司 | Special fixture applicable to long-barrel type internal grinding machine |
| CN113146297A (en) * | 2021-04-05 | 2021-07-23 | 厦门戴承贸易有限公司 | Self-centering metal pipe stable clamping auxiliary equipment |
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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: 20081112 Termination date: 20120123 |