CN102974846A - Rotor and loose broach composite limiting damping mechanism of electric main shaft - Google Patents
Rotor and loose broach composite limiting damping mechanism of electric main shaft Download PDFInfo
- Publication number
- CN102974846A CN102974846A CN2012105187710A CN201210518771A CN102974846A CN 102974846 A CN102974846 A CN 102974846A CN 2012105187710 A CN2012105187710 A CN 2012105187710A CN 201210518771 A CN201210518771 A CN 201210518771A CN 102974846 A CN102974846 A CN 102974846A
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- rotor
- pull rod
- main shaft
- limiting
- electric main
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Abstract
The invention discloses a rotor and loose broach composite limiting damping mechanism of an electric main shaft. The rotor and loose broach composite limiting damping mechanism comprises a pull rod and a rotor, wherein the pull rod is positioned in an inner hole of the rotor; the wall of the rotor is provided with a run-through slotted hole; the pull rod is provided with a positioning pin corresponding to the slot hole; the two ends of the positioning pin are positioned in the slot hole; and tetrafluoroethylene material rings are embedded in the pull rod on the two sides of the positioning ring respectively. After the measure is taken, the external diameter of the pull rod of a moving part is radially matched with that of the inner hole of the rotor, and the radial clearance is eliminated by using the tetrafluoroethylene material to realize radial limiting and axial moving. The mechanism has the characteristics of small friction coefficient, wear resistance, good elasticity and easiness in machining; the pull rod is provided with the positioning pin which is matched with the slot in the rotor for axial limiting; by adopting the structure, bidirectional limiting of the mechanism can be effectively realized; and loose broach mechanisms such as the pull rod and a disc spring are axially and radially limited, so that the rotor and the pull rod are balanced after being combined, thereby reducing the overall vibration of the electric main shaft.
Description
Technical field
The present invention relates to a kind of damping of electric main shaft, is machining center device commonly used.
Background technology
The present invention is the vibration reducing measure that machining center electricity consumption main shaft is taked in loose tool-broaching mechanism, because of this electricity speed of mainshaft height, the loose tool-broaching mechanism of its inside has in rotor need do axially-movable, so to radially, axial cooperation has relatively high expectations, otherwise it is unstable to make loose tool-broaching mechanism be in the middle position of hollow rotor, thereby cause main shaft when High Rotation Speed, to produce vibration, affect the serviceability of whole lathe.
Summary of the invention
In order to solve electric main shaft vibrative problem when the High Rotation Speed, the present invention designs the compound spacing damper mechanism of a kind of electric spindle rotor pine broaching tool.
Purpose of the present invention is come specific implementation by the following technical programs:
The compound spacing damper mechanism of electricity spindle rotor pine broaching tool, comprise pull bar and rotor, described pull bar is positioned at rotor inner hole, has the slotted eye of perforation at the wall of described rotor, corresponding described slotted eye is provided with alignment pin at described pull bar, and the two ends of described alignment pin are positioned at described slotted eye.
On the pull bar of described alignment pin both sides, embed respectively the PTFE ring is installed.
Taked after the above measure, the radial fit of moving parts pull bar external diameter and rotor inner hole is eliminated radial clearance with PTFE, reaches radially spacing, axially movable, the characteristics of this material be coefficient of friction little, wear-resisting, elasticity, easily processing arranged preferably; Being provided with an alignment pin at pull bar, matching with epitrochanterian groove, is to use as axial limiting; By taking above structure, can effectively realize the bidirectionally limited of this mechanism; Make the loose tool-broaching mechanism such as pull bar dish spring axially and radially spacing, can make rotor pull bar combination back balance, thereby electric main shaft body vibration is reduced.
Description of drawings
The below is described in further detail the present invention with embodiment with reference to the accompanying drawings.
Fig. 1 is the structure chart of the compound spacing damper mechanism of the described electric spindle rotor pine broaching tool of the embodiment of the invention.
Fig. 2 is the partial enlarged drawing among Fig. 1;
Fig. 3 is the top view at position shown in Figure 2.
The specific embodiment
As Figure 1-3, the compound spacing damper mechanism of the described electric spindle rotor pine broaching tool of the embodiment of the invention, comprise pull bar 1 and rotor 2, described pull bar 1 is positioned at rotor 2 endoporus, have the slotted eye 3 of perforation at the wall of described rotor 2, corresponding described slotted eye 3 is provided with alignment pin 4 at described pull bar, and the two ends of described alignment pin 4 are positioned at described slotted eye 3.
On the pull bar of described alignment pin 4 both sides, embed respectively PTFE ring 5 is installed.
Taked after the above measure, the radial fit of moving parts pull bar external diameter and rotor inner hole is eliminated radial clearance with PTFE, reaches radially spacing, axially movable, the characteristics of this material be coefficient of friction little, wear-resisting, elasticity, easily processing arranged preferably; Being provided with an alignment pin at pull bar, matching with epitrochanterian groove, is to use as axial limiting; By taking above structure, can effectively realize the bidirectionally limited of this mechanism; Make the loose tool-broaching mechanism such as pull bar dish spring axially and radially spacing, can make rotor pull bar combination back balance, thereby electric main shaft body vibration is reduced.
Claims (2)
1. the compound spacing damper mechanism of electric spindle rotor pine broaching tool, comprise pull bar and rotor, it is characterized in that, described pull bar is positioned at rotor inner hole, have the slotted eye of perforation at the wall of described rotor, corresponding described slotted eye is provided with alignment pin at described pull bar, and the two ends of described alignment pin are positioned at described slotted eye.
2. the compound spacing damper mechanism of electric spindle rotor pine broaching tool as claimed in claim 1 is characterized in that, embeds respectively on the pull bar of described alignment pin both sides the PTFE ring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105187710A CN102974846A (en) | 2012-12-06 | 2012-12-06 | Rotor and loose broach composite limiting damping mechanism of electric main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105187710A CN102974846A (en) | 2012-12-06 | 2012-12-06 | Rotor and loose broach composite limiting damping mechanism of electric main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102974846A true CN102974846A (en) | 2013-03-20 |
Family
ID=47849355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105187710A Pending CN102974846A (en) | 2012-12-06 | 2012-12-06 | Rotor and loose broach composite limiting damping mechanism of electric main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102974846A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111843526A (en) * | 2020-07-22 | 2020-10-30 | 湖南中大创远数控装备有限公司 | Main shaft mechanism and machine tool |
| CN112775486A (en) * | 2019-11-06 | 2021-05-11 | 杭州通产机械有限公司 | Processing equipment and processing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220625A (en) * | 1997-03-28 | 1999-06-23 | 沙迪克株式会社 | Spindle for machine tools |
| CN101462177A (en) * | 2008-12-22 | 2009-06-24 | 黄正飞 | Main spindle set |
| CN201592256U (en) * | 2009-09-23 | 2010-09-29 | 永进机械工业股份有限公司 | Main shaft capable of suppressing vibration |
| CN202356640U (en) * | 2011-11-26 | 2012-08-01 | 广州市昊志机电股份有限公司 | Close coupled ball spindle of high-speed machine tool |
| CN202531537U (en) * | 2012-02-27 | 2012-11-14 | 宜都市西孚机械有限公司 | Piston for hydraulic oil cylinder |
| CN202943265U (en) * | 2012-12-06 | 2013-05-22 | 无锡博华机电有限公司 | Broach releasing mechanism combining spacing and damping and used in rotor of electric spindle |
-
2012
- 2012-12-06 CN CN2012105187710A patent/CN102974846A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220625A (en) * | 1997-03-28 | 1999-06-23 | 沙迪克株式会社 | Spindle for machine tools |
| CN101462177A (en) * | 2008-12-22 | 2009-06-24 | 黄正飞 | Main spindle set |
| CN201592256U (en) * | 2009-09-23 | 2010-09-29 | 永进机械工业股份有限公司 | Main shaft capable of suppressing vibration |
| CN202356640U (en) * | 2011-11-26 | 2012-08-01 | 广州市昊志机电股份有限公司 | Close coupled ball spindle of high-speed machine tool |
| CN202531537U (en) * | 2012-02-27 | 2012-11-14 | 宜都市西孚机械有限公司 | Piston for hydraulic oil cylinder |
| CN202943265U (en) * | 2012-12-06 | 2013-05-22 | 无锡博华机电有限公司 | Broach releasing mechanism combining spacing and damping and used in rotor of electric spindle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775486A (en) * | 2019-11-06 | 2021-05-11 | 杭州通产机械有限公司 | Processing equipment and processing method |
| CN111843526A (en) * | 2020-07-22 | 2020-10-30 | 湖南中大创远数控装备有限公司 | Main shaft mechanism and machine tool |
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Application publication date: 20130320 |