CN203210153U - Live center sharpening device - Google Patents
Live center sharpening device Download PDFInfo
- Publication number
- CN203210153U CN203210153U CN 201320155897 CN201320155897U CN203210153U CN 203210153 U CN203210153 U CN 203210153U CN 201320155897 CN201320155897 CN 201320155897 CN 201320155897 U CN201320155897 U CN 201320155897U CN 203210153 U CN203210153 U CN 203210153U
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- CN
- China
- Prior art keywords
- rolling center
- grinding
- telescopic shaft
- tail stock
- stepless speed
- 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.)
- Withdrawn - After Issue
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model provides a live center sharpening device. The live center sharpening device comprises a lathe tailstock telescopic shaft provided with an inner tapped hole in the axial direction, a miniature grinding machine installed on a cutter rest of a small lathe carriage and a stepless speed regulating motor for driving a live center mandrel to rotate. The stepless speed regulating motor is installed on a horizontal bearing platform, and the horizontal bearing platform is installed on the external cylindrical wall of the lathe tailstock telescopic shaft. The axis deflection caused by different reference rotation of the live center mandrel is avoided, and grinding accuracy errors of an existing external cylindrical grinder are eliminated. The live center sharpening device is light and handy in structure, simple, practical and simple in installation and adjustment.
Description
Technical field
The utility model belongs to field of machining, is specifically related to a kind of rolling center arrangement for grinding.
Background technology
Exceed workpiece or the axial workpiece of certain limit in the machining in lathe processing draw ratio, must implement an end chuck clamping, the other end uses rolling center supporting or two ends conical sliding support clamping, could carry out turning processing operation to workpiece.So the precision of rolling center is most important.Its precision height is with axiality and the same circularity that directly influences after workpiece is processed.And rolling center improves the percent defective of workpiece repeatedly using the back centre position because wearing and tearing influence the machining accuracy of workpiece greatly.So rolling center is reconditioning again.Its grinding method uses cylindrical grinder all the time.The rolling center taper shank is enclosed within cylindrical grinder bistrique internal taper hole, starts the bistrique power supply it is rotated at a slow speed; Start the cylindrical grinder emery wheel and can carry out reconditioning to the top abrading section of rolling center mandrel.This moment, rolling center was to be that basic circle rotary grinding mandrel is top with the taper shank.And reconditioning is to be the rotation benchmark with the mandrel in the production use after finishing.The rotation benchmark difference of its use and reconditioning makes rolling center different axis trueness error of meeting generation degree after reparation, and generally between 0.03mm～0.10mm, none escapes by luck its error range.And rolling center is a high accuracy accessory in the lathe operation, and its mandrel rotation precision of beating is absolute value 0.Because error range is as long as produce beating of 0.01mm, the element precision that the workpiece of clamping processes on its lathe is inevitable identical with its error, and the axiality of workpiece reaches and will can hardly be avoided with deviation from circular from.
By analysis, needing only with the mandrel is that the rotation benchmark carries out the grinding reparation to the top position of mandrel cone, accomplishes that it repairs grinding and use is same rotation benchmark, and the reconditioning trueness error then can thoroughly be got rid of.And the structure of cylindrical grinder does not possess above-mentioned condition.
The utility model content
The purpose of this utility model is to overcome existing rolling center arrangement for grinding can't satisfy to repair and grind and use the rolling center reconditioning requirement that is same rotation benchmark, causes rolling center after the reconditioning to have the problem of axis trueness error.
For reaching above-mentioned purpose, the utility model provides a kind of rolling center arrangement for grinding, comprise the internal taper hole of termination on being provided with axially the tail stock telescopic shaft, be installed in the miniature abrasive machine on the knife rest of lathe upper slide rest and be used for driving the stepless speed-regulating motor that the rolling center mandrel rotates, stepless speed-regulating motor is installed on the horizontal supporting platform, and this horizontal supporting platform is installed on the cylindrical wall of described tail stock telescopic shaft.
Above-mentioned horizontal supporting platform is opened limit steel bushing clamp on tail stock telescopic shaft cylindrical wall by two semicircles.
Above-mentioned horizontal supporting platform is welded on a semicircle and opens on the steel bushing of limit.
The gap width that above-mentioned semicircle is opened between the external diameter of the internal diameter size of limit steel bushing and tail stock telescopic shaft is 0～0.5mm.
The gap that the joint that above-mentioned two semicircles are driven the limit steel bushing is got 4mm～5mm.
Above-mentioned rolling center comprises the rolling center taper shank that is arranged on described rolling center mandrel opposed end, this rolling center taper shank is installed in the described internal taper hole realizes being connected of rolling center and tail stock telescopic shaft.
The rotating speed of above-mentioned stepless speed-regulating motor is between 15r/min～150r/min.
The spindle nose of above-mentioned stepless speed-regulating motor is provided with the belt pulley with this spindle nose interference fit, and this belt pulley drives described rolling center mandrel by belt.
Above-mentioned miniature abrasive machine is pneumatic type or the miniature abrasive machine of power type.
The beneficial effects of the utility model are: got rid of the rolling center mandrel journal offset that different benchmark rotations cause, eliminated the trueness error of using the cylindrical grinder reconditioning in the past; Structure is light and handy, and is simple and practical, and installation and adjustment are simple.
Below in conjunction with the drawings and the specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is rolling center arrangement for grinding schematic diagram.
Fig. 2 is the A-A schematic diagram among Fig. 1.
Among the figure: 1, tail stock handwheel; 2, tail stock; 3, tail stock telescopic shaft: 4, semicircle is driven the limit steel bushing; 5, rolling center taper shank; 6, rolling center body; 7, emery wheel; 8, horizontal supporting platform; 9, stepless speed-regulating motor; 10, belt pulley; 11, belt; 12, rolling center mandrel; 13, miniature abrasive machine; 14, lathe upper slide rest; 15, knife rest; 16, fastening bolt; 17, upper slide rest handwheel; 18, spindle nose.
The specific embodiment
For being overcomes existing rolling center arrangement for grinding can't satisfy the reparation grinding and use the rolling center reconditioning requirement that is same rotation benchmark, cause rolling center after the reconditioning to have the problem of axis trueness error, present embodiment provides a kind of rolling center arrangement for grinding shown in Figure 1, the tail stock telescopic shaft 3 that comprises the internal taper hole of termination on being provided with axially, its termination of miniature abrasive machine 13(that is installed on the knife rest 15 of lathe upper slide rest 14 is provided with emery wheel 7) and be used for driving the stepless speed-regulating motor 9 that rolling center mandrel 12 rotates, and this stepless speed-regulating motor 9 is installed on the horizontal supporting platform 8, this horizontal supporting platform 8 is opened limit steel bushing 4 clamps on tail stock telescopic shaft 3 cylindrical walls by two semicircles, and horizontal supporting platform 8 is welded on a semicircle and opens on the limit steel bushing 4.The gap width that semicircle is opened between the external diameter of the internal diameter size of limit steel bushing 4 and tail stock telescopic shaft 3 is 0～0.5mm.And two semicircles are opened the gap that the joint of limit steel bushing 4 is got 4mm～5mm, are with capacity and take-up the slack in order to open the limit.As shown in Figure 2, two semicircles are opened between the limit steel bushing 4 and are connected by fastening bolt 16.
And rolling center comprises the rolling center taper shank 5 that is arranged on rolling center mandrel 12 opposed ends, this rolling center taper shank 5 is installed in the internal taper hole realizes being connected of rolling center and tail stock telescopic shaft 3.
Also comprise the tail stock 2 that tail stock telescopic shaft 3 is installed in the structure shown in Figure 1, its left end is provided with tail stock handwheel 1.
The spindle nose 18 of the stepless speed-regulating motor 9 that relates in the present embodiment is provided with the belt pulley 10 with this spindle nose 18 interference fit, this belt pulley 10 drives by belt 11 and is connected with rolling center mandrel 12, the rotating speed of stepless speed-regulating motor 9 is between 15r/min～150r/min, to reach the slow rotation effect.And the miniature abrasive machine of selecting for use 13 is pneumatic type or the miniature abrasive machine of power type.
The installation of rolling center arrangement for grinding and use that present embodiment provides are as follows:
1, two semicircles that will be welded with horizontal supporting platform 8 are opened on the cylindrical wall that limit steel bushing 4 is installed on tail stock telescopic shaft 3, and it is fastening with fastening bolt 16 that semicircle is opened the two ends of limit steel bushing 4.
2, stepless speed-regulating motor 9 is installed on the horizontal supporting platform 8, uses bolted, and motor shaft head 18 ends are installed belt pulley 10.
3, rolling center taper shank 5 is installed in the internal taper hole of tail stock telescopic shaft 3, and installation belt 11 is connected rolling center mandrel 12 with the belt pulley 10 of motor.
4, miniature abrasive machine 13 is installed on the knife rest 15 of lathe upper slide rest 14, with the bolt clamping on the knife rest 15.
5, lathe upper slide rest 14 is pressed the 12 angle adjustment of rolling center mandrel to identical, and tightens up fastening bolt.
6, start stepless speed-regulating motor 9 and miniature abrasive machine 12, pull upper slide rest handwheel 17, can carry out grinding action.
In sum, the rolling center arrangement for grinding that present embodiment provides has solved the rolling center mandrel journal offset that different benchmark rotations cause effectively, has eliminated the trueness error of using the cylindrical grinder reconditioning in the past.And this apparatus structure is light and handy, and is simple and practical, and installation and adjusting process are simple.
Above content be in conjunction with concrete preferred embodiment to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (9)
1. rolling center arrangement for grinding, comprise the internal taper hole of termination on being provided with axially tail stock telescopic shaft (3), be installed in the miniature abrasive machine (13) on the knife rest (15) of lathe upper slide rest (14) and be used for driving the stepless speed-regulating motor (9) that rolling center mandrel (12) rotates, it is characterized in that: described stepless speed-regulating motor (9) is installed on the horizontal supporting platform (8), and this horizontal supporting platform (8) is installed on the cylindrical wall of described tail stock telescopic shaft (3).
2. rolling center arrangement for grinding as claimed in claim 1, it is characterized in that: described horizontal supporting platform (8) is opened limit steel bushing (4) clamp on tail stock telescopic shaft (3) cylindrical wall by two semicircles.
3. rolling center arrangement for grinding as claimed in claim 2, it is characterized in that: described horizontal supporting platform (8) is welded on a semicircle and opens on the limit steel bushing (4).
4. rolling center arrangement for grinding as claimed in claim 2 is characterized in that: the gap width that described semicircle is opened between the external diameter of the internal diameter size of limit steel bushing (4) and tail stock telescopic shaft (3) is 0～0.5mm.
5. rolling center arrangement for grinding as claimed in claim 2 is characterized in that: described two semicircles are opened the gap that the joint of limit steel bushing (4) is got 4mm～5mm.
6. as claim 1 or 2 or 3 or 4 or 5 described rolling center arrangement for grinding, it is characterized in that: described rolling center comprises and is arranged on rolling center taper shank (5) on the end relative with described rolling center mandrel (12), this rolling center taper shank (5) is installed in realizes in the described internal taper hole being connected of rolling center and tail stock telescopic shaft (3).
7. as claim 1 or 2 or 3 or 4 or 5 described rolling center arrangement for grinding, it is characterized in that: the rotating speed of described stepless speed-regulating motor (9) is between 15r/min～150r/min.
8. as claim 1 or 2 or 3 or 4 or 5 described rolling center arrangement for grinding, it is characterized in that: the spindle nose (18) of described stepless speed-regulating motor (9) is provided with the belt pulley (10) with this spindle nose (18) interference fit, and this belt pulley (10) drives described rolling center mandrel (12) by belt (11).
9. as claim 1 or 2 or 3 or 4 or 5 described rolling center arrangement for grinding, it is characterized in that: described miniature abrasive machine (13) is pneumatic type or the miniature abrasive machine of power type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320155897 CN203210153U (en) | 2012-12-14 | 2013-03-29 | Live center sharpening device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220694949.2 | 2012-12-14 | ||
| CN201220694949 | 2012-12-14 | ||
| CN 201320155897 CN203210153U (en) | 2012-12-14 | 2013-03-29 | Live center sharpening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203210153U true CN203210153U (en) | 2013-09-25 |
Family
ID=48811383
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310109687.8A Expired - Fee Related CN103213054B (en) | 2012-12-14 | 2013-03-29 | A kind of rolling center arrangement for grinding and grinding method thereof |
| CN 201320155897 Withdrawn - After Issue CN203210153U (en) | 2012-12-14 | 2013-03-29 | Live center sharpening device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310109687.8A Expired - Fee Related CN103213054B (en) | 2012-12-14 | 2013-03-29 | A kind of rolling center arrangement for grinding and grinding method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103213054B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213054A (en) * | 2012-12-14 | 2013-07-24 | 广州中船黄埔造船有限公司 | Movable centre grinding device and grinding method thereof |
| CN104354104A (en) * | 2014-11-10 | 2015-02-18 | 重庆蓝黛动力传动机械股份有限公司 | Assistant shaft for grinding hexagonal tip |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8902380U1 (en) * | 1989-03-01 | 1989-04-20 | Hornung, Andreas, 4708 Kamen | Device for grinding the tips of tungsten electrodes |
| CN202053387U (en) * | 2011-04-19 | 2011-11-30 | 韦绍武 | Clamping hoop type pile head cutting machine |
| CN202317211U (en) * | 2011-11-27 | 2012-07-11 | 西安航天博诚新材料有限公司 | Milling device for machining inner arcs |
| CN202388344U (en) * | 2011-12-07 | 2012-08-22 | 齐重数控装备股份有限公司 | Centre grinding device of numerical control roll grinder |
| CN202392355U (en) * | 2011-12-26 | 2012-08-22 | 智胜化工股份有限公司 | Leakage blocking instrument for chemical industrial pipeline under pressure |
| CN202462163U (en) * | 2011-12-27 | 2012-10-03 | 芜湖新联造船有限公司 | Lathe center grinding device |
| CN103213054B (en) * | 2012-12-14 | 2015-08-19 | 广州中船黄埔造船有限公司 | A kind of rolling center arrangement for grinding and grinding method thereof |
-
2013
- 2013-03-29 CN CN201310109687.8A patent/CN103213054B/en not_active Expired - Fee Related
- 2013-03-29 CN CN 201320155897 patent/CN203210153U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213054A (en) * | 2012-12-14 | 2013-07-24 | 广州中船黄埔造船有限公司 | Movable centre grinding device and grinding method thereof |
| CN104354104A (en) * | 2014-11-10 | 2015-02-18 | 重庆蓝黛动力传动机械股份有限公司 | Assistant shaft for grinding hexagonal tip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103213054B (en) | 2015-08-19 |
| CN103213054A (en) | 2013-07-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130925 Effective date of abandoning: 20150819 |
|
| RGAV | Abandon patent right to avoid regrant |