CN205289762U - A live center for processing axle type work piece - Google Patents
A live center for processing axle type work piece Download PDFInfo
- Publication number
- CN205289762U CN205289762U CN201520948752.0U CN201520948752U CN205289762U CN 205289762 U CN205289762 U CN 205289762U CN 201520948752 U CN201520948752 U CN 201520948752U CN 205289762 U CN205289762 U CN 205289762U
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- CN
- China
- Prior art keywords
- bearing
- sliding sleeve
- sliding
- snap ring
- workpiece
- 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
- 238000006073 displacement reaction Methods 0.000 abstract 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000001788 irregular Effects 0.000 description 6
- 238000003892 spreading Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- Support Of The Bearing (AREA)
Abstract
The utility model discloses a live center for processing axle type work piece, including displacement device, bearing (3), bearing two (7) and tapering handle (1), displacement device is by bearing shell (5), the piece (6) that rises slides, sliding sleeve (8) are constituteed, there is a shoulder hole on the bearing shell axle center, downtheholely install the tapering handle through bearing no. 1 and bearing no. 2, use simultaneously interior snap ring (2) and outer snap ring (4) fixed with the bearing, it is concentric with the hole that the toper ladder is established to the one end on the excircle of bearing shell surface, a recess is established to the other end, installation snap ring (9), the sliding sleeve becomes the cylinder, the three above boss of equipartition on the terminal surface of sliding sleeve, the side of every boss is established a recess that rises on the piece with sliding sleeve vertically slot hole and sliding of equivalent amount and is coincide, link into an integrated entity through round pin axle (12), and install at the excircle of bearing shell on the surface. The utility model discloses prevent that the work piece is fixed more steady during the operation, fixes a position more accurately because of the off centering that jar mouth irregularity produced.
Description
Technical field
This utility model relates to the machine tool accessory of a kind of cylindrical parts workpiece machining, specifically a kind of live center for working shaft-like workpiece.
Background technology
Live center is the processing accessory of the most frequently used a kind of shaft-like workpiece of lathe, along with developing rapidly of China's hydraulic jack in recent years, occurs in that again umbrella shape live center, is applied to a secondary process of class workpiece and manufacturability processing. The blank of cylinder barrel is different from round steel, and round steel processing live center acts in centre bore, and positioning datum is reliable. Cylinder barrel class workpiece is then different, the end face of blank material is irregular irregular, position baseline is on the inner port edge line of workpiece, top operationally detent force is mainly thrust on workpiece, forcing workpiece to position, because the blank of workpiece is irregular, the center of protruding point forces workpiece centre to offset to direction, protruding point, position error occurs, causes next procedure processing difficulties. If polish, this error makes the form and position tolerance of workpiece significantly decline, and even scraps. It addition, the protruding parts of cylinder class workpiece also makes umbrella shape live center unbalance stress, producing top elastic deformation, when workpiece rotates, umbrella-shaped lathe center drifts about, and rocks, makes the precision of workpiece can not be guaranteed.
Because the particularity of cylinder barrel class workpiece is in that positioning datum is irregular, produces locating bias, and the concentricity of workpiece and axiality require higher, and umbrella-shaped lathe center is currently also it cannot be guaranteed that the technological requirement of product in process of production.
Summary of the invention
For above-mentioned prior art Problems existing, this utility model provides a kind of live center for working shaft-like workpiece, it is prevented that because of the off-centring of the irregular generation of cylinder mouth, and during operation, workpiece is fixing more steady, more accurate positioning.
To achieve these goals, the technical solution adopted in the utility model is: a kind of live center for working shaft-like workpiece, including slide device, bearing one, bearing two and tapering handle, described slide device is by bearing case, sliding is risen block, sliding sleeve forms, bearing case axle center has a shoulder hole, by bearing one and bearing two, tapering handle is installed in hole, and with interior snap ring and outer snap ring, bearing is fixed, it is concentric with endoporus that one end of the outer round surface of bearing case sets conic steps, the other end sets a groove, snap ring is installed, sliding sleeve becomes cylindrical shape, the boss of uniform more than three on the end face of sliding sleeve, it is identical with the groove that the sliding of equivalent amount is risen on block that the side of each boss sets an elongated hole vertical with sliding sleeve, linked into an integrated entity by bearing pin, and be arranged on the outer round surface of bearing case.
The endoporus of this utility model sliding sleeve is arranged on the periphery on bearing case, and outer round surface one end sets cone, it is simple to the handling of workpiece, tailstock tool moves to workpiece, and the sliding block that rises is subject to thrust, the cone spreading along bearing case, the power of spreading acts on the inwall of workpiece, workpiece tensioner, it is achieved feel relieved with endoporus, it is prevented that because of the off-centring of the irregular generation of cylinder mouth, during operation, workpiece is fixing more steady, more accurate positioning, sliding sleeve assists the sliding of each position to rise block action together, it is achieved synchronize;Workpiece obtains the concentricity equal with machine tool accuracy and axiality and enough expanding forces by rolling center.
Accompanying drawing explanation
Fig. 1 is this utility model sectional view;
Fig. 2 be in Fig. 1 A-A to sectional view;
Fig. 3 is operation principle view of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of live center for working shaft-like workpiece, including slide device, bearing 1, bearing 27 and tapering handle 1; Described slide device is made up of rise block 6, sliding sleeve 8 of bearing case 5, sliding, passes through sliding motion, it is achieved the tensioner of workpiece. Bearing case 5 has a shoulder hole on axle center, by bearing 1 and bearing 27, tapering handle 1 is installed in hole, and with interior snap ring 2 and outer snap ring 4, bearing is fixed, realize rotating with workpiece of slide device, it is concentric with endoporus that one end of the outer round surface of bearing case 5 sets conic steps, the other end sets a groove, installs snap ring 9, it is prevented that slide device comes off. Sliding sleeve 8 one-tenth cylindrical shape, the boss of uniform more than three on the end face of sliding sleeve 8, the side of each boss sets the sliding of an elongated hole vertical with sliding sleeve 8 and the equivalent amount groove on block 6 that rises and coincide, and is linked into an integrated entity by bearing pin 12, and is arranged on the outer round surface of bearing case 5.
Sliding is risen and is strained by spring 10 between block 6 and sliding sleeve 8. Back-moving spring 10 ensures that the sliding block 6 that rises is fitted on the conic steps of outer round surface of bearing case 5.
As it is shown on figure 3, tapering handle 1 is installed on tailstock tool 13, the endoporus of sliding sleeve 8 is arranged on the periphery on bearing case 5, outer round surface one end sets cone, being easy to the handling of workpiece, the other end is provided with and rises the groove of block 6 equivalent amount with sliding, and the boss of the block 6 that rises with sliding coincide and is connected. Tailstock tool 13 moves to workpiece, and the sliding block 6 that rises is subject to thrust, the cone spreading along bearing case 5, and the power of spreading acts on the inwall of workpiece, workpiece tensioner, it is achieved feel relieved with endoporus. Sliding sleeve 8 assists the sliding of each position to rise block 6 action together, it is achieved synchronize. Workpiece obtains the concentricity equal with machine tool accuracy and axiality and enough expanding forces by rolling center, and lathe tool carries out machining.
Claims (2)
1. the live center for working shaft-like workpiece, it is characterised in that include slide device, bearing one (3), bearing two (7) and tapering handle (1), described slide device is by bearing case (5), sliding is risen block (6), sliding sleeve (8) forms, bearing case (5) axle center there is a shoulder hole, by bearing one (3) and bearing two (7), tapering handle (1) is installed in hole, and with interior snap ring (2) and outer snap ring (4), bearing is fixed, it is concentric with endoporus that one end of the outer round surface of bearing case (5) sets conic steps, the other end sets a groove, snap ring (9) is installed, sliding sleeve (8) becomes cylindrical shape, the boss of uniform more than three on the end face of sliding sleeve (8), the side of each boss sets the sliding of an elongated hole vertical with sliding sleeve (8) and the equivalent amount groove on block (6) that rises and coincide, linked into an integrated entity by bearing pin (12), and be arranged on the outer round surface of bearing case (5).
2. a kind of live center for working shaft-like workpiece according to claim 1, it is characterised in that described sliding is risen between block (6) and sliding sleeve (8) by spring (10) tension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520948752.0U CN205289762U (en) | 2015-11-24 | 2015-11-24 | A live center for processing axle type work piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520948752.0U CN205289762U (en) | 2015-11-24 | 2015-11-24 | A live center for processing axle type work piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205289762U true CN205289762U (en) | 2016-06-08 |
Family
ID=56462454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520948752.0U Expired - Fee Related CN205289762U (en) | 2015-11-24 | 2015-11-24 | A live center for processing axle type work piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205289762U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364094A (en) * | 2015-11-24 | 2016-03-02 | 江苏华海钢结构有限公司 | Live center used for machining shaft-type workpiece |
| CN110814366A (en) * | 2019-11-06 | 2020-02-21 | 博信矿山科技（徐州）股份有限公司 | Live center for machining shaft workpieces |
-
2015
- 2015-11-24 CN CN201520948752.0U patent/CN205289762U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364094A (en) * | 2015-11-24 | 2016-03-02 | 江苏华海钢结构有限公司 | Live center used for machining shaft-type workpiece |
| CN110814366A (en) * | 2019-11-06 | 2020-02-21 | 博信矿山科技（徐州）股份有限公司 | Live center for machining shaft workpieces |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160608 Termination date: 20181124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |