CN103624277A - Spring-ball-type centering device - Google Patents
Spring-ball-type centering device Download PDFInfo
- Publication number
- CN103624277A CN103624277A CN201210304394.0A CN201210304394A CN103624277A CN 103624277 A CN103624277 A CN 103624277A CN 201210304394 A CN201210304394 A CN 201210304394A CN 103624277 A CN103624277 A CN 103624277A
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- CN
- China
- Prior art keywords
- spring
- top body
- centre head
- workpiece
- protective sleeve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B23/00—Tailstocks; Centres
- B23B23/04—Live centres
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
Abstract
The invention discloses a spring-ball-type centering device which comprises a centering body, a centering head, a stirring jaw, a spring, a spring base and a steel ball. The centering head and the stirring jaw are arranged at the same end of the centering body. The centering head, the stirring jaw and the centering body are in sliding connection. A cavity is arranged at one end, close to the centering head, of the centering body. The steel ball is arranged in the cavity. The spring base is arranged at the bottom end of the cavity. The spring is fixed below the spring base. According to the technical scheme, a workpiece can be machined at one time, meanwhile, the workpiece does not need to be clamped during shutting down, operation is easy, and machining efficiency is improved.
Description
Technical field
The present invention relates to a kind of Finial device, particularly relate to a kind of spring ball type Finial device.
Background technology
Finial device is used when the machining conventionally as a kind of machining tool, and workpiece is interacted with instrument under the condition pivoting, and the site error of workpiece rotation has material impact to processing result and even lathe and instrument.There is following shortcoming in the Finial device adopting at present: 1, traditional Finial device can not make the disposable processing of workpiece to the end, and clamping workpiece need to stop; 2, the structural formula that current most of Finial device is top adopted directly utilizes carbide alloy to make or by ratio-frequency welding, connects tapered sleeve at centre head outer surface top, when workpiece adds man-hour, because rotating speed is higher, excessive at workpiece volume, in the situation of preponderance, easily cause the fracture of centre head; 3, on the top body of Finial device, protective sleeve is not set, when workpiece adds man-hour, because rotating speed is higher, easily causes the wearing and tearing of top body.
Summary of the invention
The object of the invention is to provide in order to address the above problem a kind of use simple, working (machining) efficiency is high, the spring ball type Finial device of long service life.
The present invention is achieved by the following technical solutions:
A kind of spring ball type Finial device, comprise top body, centre head, pusher dog, spring, spring base and steel ball, described centre head and described pusher dog are arranged at same one end of described top body, described centre head and described pusher dog and described top body are slidably connected, described top body is provided with cavity near one end of centre head, described steel ball is arranged in described cavity, and the bottom of described cavity is provided with spring base, and described spring is fixed on the below of described spring base.
When with top body top tight workpiece, after centre head is compressed, move, extrusion spring seat and steel ball, move forward thereby promote pusher dog simultaneously, the end cutting edge of pusher dog thrusts workpiece end face and stirs workpiece rotation, while unclamping top body, under the effect of spring or spring base, centre head and workpiece are ejected, make workpiece can time processing complete, do not need the clamping workpiece that stops, easy and simple to handle, efficiency is high simultaneously.
Further, the outer surface of described top body is provided with protective sleeve, and described protective sleeve is connected with described top body by screw.Outer surface at top body arranges protective sleeve, can effectively weaken the wearing and tearing that cause top body due to rotating speed when higher.
Particularly, described protective sleeve is polyurethane rubber protective sleeve.Polyurethane rubber protective sleeve has the following advantages: (1) anti-wear performance is remarkable: anti-wear performance is the highest in all rubber.(2) bumper and absorbing shock is good.Under room temperature, UR damper element can absorb 10%-20% vibrational energy, vibration frequency is higher, energy absorption is larger.(3) coefficient of friction is higher, generally more than 0.5.
Further, the outer surface of described centre head is provided with taper sheath, and described taper sheath is fixedly connected with described centre head by screw thread.By at centre head, taper sheath being set, can avoid because rotating speed is higher or situation excessive at workpiece volume, preponderance causes the fracture of centre head.
Particularly, described taper sheath is carbide alloy taper sheath.
The invention has the beneficial effects as follows:
By adopting technique scheme, make workpiece can time processing complete, do not need the clamping workpiece that stops simultaneously, easy and simple to handle, efficiency is high.In addition, at the outer surface of top body, protective sleeve is set, can effectively weakens the wearing and tearing that cause top body due to rotating speed when higher.By at centre head, taper sheath being set, can avoid because rotating speed is higher or situation excessive at workpiece volume, preponderance causes the fracture of centre head.
Accompanying drawing explanation
Fig. 1 is the cutaway view of a kind of spring ball type Finial device of the present invention.
In figure: the top body of 1-, 2-spring support, 3-protective sleeve, 4-centre head, 5-pusher dog, 6-steel ball, 7-spring, 8-taper sheath.
The specific embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail:
As shown in Figure 1, a kind of spring ball type of the present invention is top, comprise top body 1, centre head 4, pusher dog 5, spring 7, spring base 2 and steel ball 6, centre head 4 and pusher dog 5 are arranged at same one end of top body 1, centre head 4 is slidably connected with pusher dog 5 and top body 1, and top body 1 is provided with cavity near one end of centre head 4, and steel ball 6 is arranged in cavity, the bottom of cavity is provided with spring base 2, and spring 7 is fixed on the below of spring base 2.
When with top body 1 top tight workpiece, after centre head 4 is compressed, move, extrusion spring seat 2 and steel ball 6, move forward thereby promote pusher dog 5 simultaneously, the end cutting edge of pusher dog 5 thrusts workpiece end face and stirs workpiece rotation, while unclamping top body 1, under the effect of spring 7 or spring base 2, centre head 4 and workpiece are ejected, make workpiece can time processing complete, do not need the clamping workpiece that stops, easy and simple to handle, efficiency is high simultaneously.
The outer surface of top body 1 is provided with protective sleeve 3, and protective sleeve 3 is connected with top body 1 by screw.Protective sleeve 3 is polyurethane rubber protective sleeve.Outer surface at top body 1 arranges protective sleeve 3, can effectively weaken the wearing and tearing that cause top body 1 due to rotating speed when higher.The outer surface of centre head 4 is provided with taper sheath 8, and taper sheath 8 is fixedly connected with described centre head 4 by screw thread.Taper sheath 8 is carbide alloy taper sheath.By taper sheath 8 being set at centre head 4, can avoid because rotating speed is higher or fracture excessive at workpiece volume, that situation preponderance causes centre head 4.
Claims (5)
1. a spring ball type Finial device, comprise top body, centre head and pusher dog, described centre head and described pusher dog are arranged at same one end of described top body, described centre head and described pusher dog and described top body are slidably connected, it is characterized in that: also comprise spring, spring base and steel ball, described top body is provided with cavity near one end of centre head, described steel ball is arranged in described cavity, the bottom of described cavity is provided with spring base, and described spring is fixed on the below of described spring base.
2. a kind of spring ball type Finial device according to claim 1, is characterized in that: the outer surface of described top body is provided with protective sleeve, and described protective sleeve is connected with described top body by screw.
3. a kind of spring ball type Finial device according to claim 2, is characterized in that: described protective sleeve is polyurethane rubber protective sleeve.
4. a kind of spring ball type Finial device according to claim 1, is characterized in that: the outer surface of described centre head is provided with taper sheath, and described taper sheath is fixedly connected with described centre head by screw thread.
5. a kind of spring ball type Finial device according to claim 4, is characterized in that: described taper sheath is carbide alloy taper sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210304394.0A CN103624277A (en) | 2012-08-24 | 2012-08-24 | Spring-ball-type centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210304394.0A CN103624277A (en) | 2012-08-24 | 2012-08-24 | Spring-ball-type centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103624277A true CN103624277A (en) | 2014-03-12 |
Family
ID=50205923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210304394.0A Pending CN103624277A (en) | 2012-08-24 | 2012-08-24 | Spring-ball-type centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103624277A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985203A (en) * | 2015-06-19 | 2015-10-21 | 苏州亚思科精密数控有限公司 | Centre for machine tool |
| CN105150102A (en) * | 2015-10-26 | 2015-12-16 | 重庆市银钢一通科技有限公司 | Grinding machine and apex thereof |
| CN108856745A (en) * | 2018-08-09 | 2018-11-23 | 浙江台玖精密机械有限公司 | High-precision end face drives tooling and operating method |
| CN109623000A (en) * | 2018-11-19 | 2019-04-16 | 西安近代化学研究所 | A kind of live centre safety insulating device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191303047A (en) * | 1913-02-05 | 1913-12-11 | Siegmund Sokal | Improvements in Bearings for Lathe and like Centres. |
| GB918052A (en) * | 1960-09-30 | 1963-02-13 | Roehm Ges M G H | Improvements in or relating to tailstock centres |
| DE3622725A1 (en) * | 1986-07-05 | 1988-01-07 | Karl Bruckner Gmbh Praezisions | Rotating sleeve or centre |
| CN88210824U (en) * | 1988-02-11 | 1988-11-02 | 刘其汉 | Brute force putting centre |
| CN2070213U (en) * | 1990-07-19 | 1991-01-30 | 烟台市芝罘新兴夹具厂 | Shift claw adjustable mechanical floating end face shifting top |
| CN201399589Y (en) * | 2009-05-13 | 2010-02-10 | 苏州大学 | End tooth transmission centre device |
| CN201505734U (en) * | 2009-09-19 | 2010-06-16 | 常州市大华顶尖厂 | Centre |
| CN201511139U (en) * | 2009-05-05 | 2010-06-23 | 上海标准件模具厂 | Adjustable thimble with elastic end surface |
| CN202861421U (en) * | 2012-08-24 | 2013-04-10 | 成都科兴密封技术有限公司 | Spring roll ball type top apex device |
-
2012
- 2012-08-24 CN CN201210304394.0A patent/CN103624277A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191303047A (en) * | 1913-02-05 | 1913-12-11 | Siegmund Sokal | Improvements in Bearings for Lathe and like Centres. |
| GB918052A (en) * | 1960-09-30 | 1963-02-13 | Roehm Ges M G H | Improvements in or relating to tailstock centres |
| DE3622725A1 (en) * | 1986-07-05 | 1988-01-07 | Karl Bruckner Gmbh Praezisions | Rotating sleeve or centre |
| CN88210824U (en) * | 1988-02-11 | 1988-11-02 | 刘其汉 | Brute force putting centre |
| CN2070213U (en) * | 1990-07-19 | 1991-01-30 | 烟台市芝罘新兴夹具厂 | Shift claw adjustable mechanical floating end face shifting top |
| CN201511139U (en) * | 2009-05-05 | 2010-06-23 | 上海标准件模具厂 | Adjustable thimble with elastic end surface |
| CN201399589Y (en) * | 2009-05-13 | 2010-02-10 | 苏州大学 | End tooth transmission centre device |
| CN201505734U (en) * | 2009-09-19 | 2010-06-16 | 常州市大华顶尖厂 | Centre |
| CN202861421U (en) * | 2012-08-24 | 2013-04-10 | 成都科兴密封技术有限公司 | Spring roll ball type top apex device |
Non-Patent Citations (1)
| Title |
|---|
| 王正蒙: "拨爪顶尖及其应用", 《机械工人冷加工》, no. 10, 31 October 1980 (1980-10-31), pages 42 - 43 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985203A (en) * | 2015-06-19 | 2015-10-21 | 苏州亚思科精密数控有限公司 | Centre for machine tool |
| CN105150102A (en) * | 2015-10-26 | 2015-12-16 | 重庆市银钢一通科技有限公司 | Grinding machine and apex thereof |
| CN108856745A (en) * | 2018-08-09 | 2018-11-23 | 浙江台玖精密机械有限公司 | High-precision end face drives tooling and operating method |
| CN108856745B (en) * | 2018-08-09 | 2023-11-03 | 浙江台玖精密机械有限公司 | High-precision end face driving tool and operation method |
| CN109623000A (en) * | 2018-11-19 | 2019-04-16 | 西安近代化学研究所 | A kind of live centre safety insulating device |
| CN109623000B (en) * | 2018-11-19 | 2020-09-25 | 西安近代化学研究所 | Safety isolation device for live center |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140312 |