CN201511139U - Adjustable thimble with elastic end surface - Google Patents
Adjustable thimble with elastic end surface Download PDFInfo
- Publication number
- CN201511139U CN201511139U CN2009200716139U CN200920071613U CN201511139U CN 201511139 U CN201511139 U CN 201511139U CN 2009200716139 U CN2009200716139 U CN 2009200716139U CN 200920071613 U CN200920071613 U CN 200920071613U CN 201511139 U CN201511139 U CN 201511139U
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- thimble
- face
- end surface
- thimble body
- elastic filler
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Abstract
The utility model relates to an adjustable thimble with an elastic end surface used on the end surfaces of pulling and positioning products, which comprises a thimble body (1), a main tip (2), sub-tips (3) and an elastic filler (4), wherein the thimble body (1) is a main structural part of the thimble; the thimble body (1) is internally provided with an inner cavity which can contain the elastic filler (4), central line of rotation of the end surface thereof is provided with a through hole for placing the main tip (2), and the end surface thereof is provided with the through hole for placing the sub-tips (3); the main tip (2) is arranged on the central line of rotation of the end surface, and contacted with the end surfaces of parts needing to be processed; the number of the sub-tips (3) is at least three and symmetrically arranged at the arc position around the center of a circle; and the elastic filler (4) is placed in the inner cavity of the thimble body (1). The adjustable thimble can pull against the products steadily and reliably, the products do not deform by the action of a radial force, the thimble body is worn minimally, and the service life is greatly improved.
Description
Technical field
The utility model relates to the improvement of lathe with active thimble, relates in particular to holding out against, locate the improvement of the employed active thimble of product end surface.
Background technology
In the turning process, often run into and need hold out against the location the right side of workpiece, to strengthen the integral rigidity of workpiece, prevent that workpiece from producing vibration in turning process, thereby guarantee to process qualified workpiece.Traditional mode that the workpiece right side is held out against the location is to adopt the active thimble of end face.Production practices prove, adopt the active thimble of end face to carry out the location that holds out against of workpiece right side, have following weak point:
One, because the working face of the active thimble of end face is a plane, the right side of workpiece also is a plane.Hold out against in the position fixing process actual, two planes are difficult to accomplish fit well, thereby influence the actual locating effect that holds out against.
Two, because two planes are difficult to fit well, and the contact site of workpiece and thimble is a point often, and this point often is not to be positioned on the axis of rotation of workpiece, thereby makes workpiece be subjected to the effect of radial load.This active force can make workpiece produce radial deformation, and pressure is big more, and the radial deformation of workpiece is also big more.Thereby the machining accuracy that causes workpiece is difficult to guarantee.
Three, because two planes are difficult to fit well, and the contact site of workpiece and thimble is a point often, and this point often is not to be positioned on the axis of rotation of active thimble equally, thereby makes active thimble be subjected to the effect of radial load.This active force can make the bearing aggravation wearing and tearing of active thimble inside, makes the life-span of active thimble shorten dramatically.
The utility model content
The utility model is intended to solve all deficiencies that adopt the active thimble top tight workpiece of end face to exist, and provides a kind of elasticity end face active thimble.This is a kind of active thimble of end face with self-regulating function.
The utility model is achieved in that
The active thimble of a kind of elasticity end face comprises thimble body 1, and is main top 2, and son is top 3, elastic filler 4:
Wherein, thimble body 1 is a thimble body junction member, is provided with the inner chamber that can hold elastic filler 4 in the thimble body 1, is provided with to place main top 2 through hole on end face centre of gyration line, is provided with the through hole of placing son top 3 at end face; Main top 2 are located on the end face centre of gyration line, contact the product end surface of required processing work, can realize that the master of workpiece holds out against positioning function; Top 3 at least three of son is arranged in arc position around the end face center of circle with symmetric mode, contacts the product end surface of required processing work, can realize the auxiliary jacking positioning function of workpiece; Elastic filler 4 is positioned in the inner chamber of thimble body 1, can realize the automatic adjusting of master top 2 and top 3 collapsing lengths of son.
Top and three the top location that hold out against of finishing jointly product end surface of son of master of above-mentioned employing reach optimal effect.Top quantity is very few, the weak effect that holds out against and locate; Top quantity is too much, then makes trouble.
Above-mentioned elastic filler 4 is the stretchy nylon material.Adopt nylon rather than other fluid to do flexible member and regulate four top collapsing lengths, therefore need not to take special seal approach, nylon can not revealed yet, and is simple and practical.
Top and the sub top energy of master in the utility model is realized the automatic adjusting of collapsing length by the effect of elastic filler, thereby guarantee in the process that holds out against the location workpiece, the main top and sub top pressure that transmits is in full accord, and makes a concerted effort to be positioned on the axis of rotation of workpiece.Thereby it is reliable and stable to hold out against product, and product can not be subjected to the effect of radial load and be out of shape, and thimble can not be subjected to the effect of radial load and premature failure, and significantly prolong service life.
Below, in conjunction with the accompanying drawings, further specify the utility model:
Description of drawings
Fig. 1 holds out against the schematic diagram of location product for traditional active thimble of end face;
Fig. 2 is the utility model general assembly drawing;
Fig. 3 holds out against location product schematic diagram for adopting the utility model.
The specific embodiment
As shown in Figure 2 to Figure 3, a kind of active thimble of elasticity end face that adopts the nylon elastomeric material as elastic filler, this is a kind of active thimble of elasticity end face with self-regulating function.Wherein:
One thimble body 1, this thimble body inside has the space die cavity that can hold stretchy nylon 4, and processes a macropore on this thimble body, is used for assembling main top 2; Process three equally distributed three apertures, be used to assemble three sons top 3.
Master is top 2, is assemblied on the thimble body 1.
Three sons are top 3, are assemblied on the thimble body 1.
The head of main top 2 and three sons top 3 all processes the small platform that diameter is 0.5-1.0mm, prevents that head from crossing point and heading into workpiece inside.Thereby guarantee can on workpiece end face, not eject pit.
During assembling, at first stretchy nylon 4 is poured into to thimble body 1 volume inside die cavity by the hole on the thimble body 1, assemble main top 2 and three sons top 3 then and get final product.
Fig. 2 holds out against location product schematic diagram for adopting the utility model.As shown in the figure, even the right side of workpiece tilts, the utility model owing to the effect of stretchy nylon 4 make main top 2 and son top 3 can regulate automatically, thereby make each top pressure that bears identical size, it is reliable and stable to hold out against, locate workpiece.Because four top tips are reserved with small platform, so can not eject the pit that influences product quality on workpiece end face.
Claims (5)
1. the active thimble of elasticity end face is characterized in that, comprises thimble body (1), main top (2), son top (3), elastic filler (4);
Wherein, thimble body (1) is a thimble body junction member, and the thimble body is provided with the inner chamber that can hold elastic filler (4) in (1), is provided with the through hole of placing main top (2) on end face centre of gyration line, is provided with the through hole of placing son top (3) at end face;
Main top (2) are located on the end face centre of gyration line, contact the product end surface of required processing work;
At least three of top (3) quantity of son are arranged in arc position around the end face center of circle with symmetric mode, contact the product end surface of required processing work;
Elastic filler (4) is positioned in the inner chamber of thimble body (1).
2. the active thimble of elasticity end face according to claim 1 is characterized in that the quantity of described son top (3) is three.
3. the active thimble of elasticity end face according to claim 1 is characterized in that described elastic filler (4) is the stretchy nylon material.
4. the active thimble of elasticity end face according to claim 1 is characterized in that, the head in main top (2) and sub top (3) all processes the small platform that diameter is 0.5-1.0mm.
5. the active thimble of elasticity end face according to claim 1 is characterized in that, described master top (2) and son top (3) are 0.01-0.02mm with the fit clearance of thimble body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200716139U CN201511139U (en) | 2009-05-05 | 2009-05-05 | Adjustable thimble with elastic end surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200716139U CN201511139U (en) | 2009-05-05 | 2009-05-05 | Adjustable thimble with elastic end surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201511139U true CN201511139U (en) | 2010-06-23 |
Family
ID=42482537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200716139U Expired - Fee Related CN201511139U (en) | 2009-05-05 | 2009-05-05 | Adjustable thimble with elastic end surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201511139U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624277A (en) * | 2012-08-24 | 2014-03-12 | 成都科兴密封技术有限公司 | Spring-ball-type centering device |
| CN103769629A (en) * | 2014-01-24 | 2014-05-07 | 南通国盛精密机械有限公司 | Three-point fixation type lathe tailstock |
| CN106001462A (en) * | 2016-06-21 | 2016-10-12 | 孙志军 | Automatic coating machine for sand core of nodular cast iron pipe |
| CN109396720A (en) * | 2018-11-29 | 2019-03-01 | 中国工程物理研究院机械制造工艺研究所 | A kind of multistation vacuum welding is consecutive |
-
2009
- 2009-05-05 CN CN2009200716139U patent/CN201511139U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103624277A (en) * | 2012-08-24 | 2014-03-12 | 成都科兴密封技术有限公司 | Spring-ball-type centering device |
| CN103769629A (en) * | 2014-01-24 | 2014-05-07 | 南通国盛精密机械有限公司 | Three-point fixation type lathe tailstock |
| CN106001462A (en) * | 2016-06-21 | 2016-10-12 | 孙志军 | Automatic coating machine for sand core of nodular cast iron pipe |
| CN109396720A (en) * | 2018-11-29 | 2019-03-01 | 中国工程物理研究院机械制造工艺研究所 | A kind of multistation vacuum welding is consecutive |
| CN109396720B (en) * | 2018-11-29 | 2024-04-23 | 中国工程物理研究院机械制造工艺研究所 | Multi-station vacuum welding table |
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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: 20100623 Termination date: 20120505 |