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CN209754048U - A modular chuck - Google Patents

A modular chuck Download PDF

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Publication number
CN209754048U
CN209754048U CN201920522555.0U CN201920522555U CN209754048U CN 209754048 U CN209754048 U CN 209754048U CN 201920522555 U CN201920522555 U CN 201920522555U CN 209754048 U CN209754048 U CN 209754048U
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China
Prior art keywords
chuck
workpiece
work piece
fixed
clamping module
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Expired - Fee Related
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CN201920522555.0U
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Chinese (zh)
Inventor
查彬
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Shanghai Jiansheng Machinery Parts Co Ltd
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Shanghai Jiansheng Machinery Parts Co Ltd
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Abstract

The embodiment of the utility model discloses modularization chuck relates to machining, welding and inspection and detects technical field. The clamping device comprises a chuck body and a workpiece clamping module, wherein the workpiece clamping module is fixedly connected with the chuck body, and a workpiece fixing mechanism for fixing a workpiece is arranged on the workpiece clamping module; the chuck body includes chuck body and body cover that rises, body cover and chuck body sealing connection that rises is equipped with chuck fastening hydraulic pressure chamber between chuck body and body cover that rises, and the chuck body is connected with the chuck booster mechanism with chuck fastening hydraulic pressure chamber intercommunication. Utilize chuck booster mechanism to increase the pressure of working medium such as hydraulic pressure oil in the chuck fastening hydraulic pressure chamber, the body rises the cover and rises and tightly fixes work piece clamping module, and the work piece passes through work piece fixed establishment to be fixed on work piece clamping module, and work piece clamping module rises the cover through the centre gripping and rises automatically and tightly fixedly, realizes automatic centering, and positioning accuracy is higher, does not have wearing and tearing moreover, and life is longer.

Description

一种模块化卡盘A modular chuck

技术领域technical field

本实用新型实施例涉及机加工、焊接和检验检测技术领域,具体涉及一种模块化卡盘。The embodiment of the utility model relates to the technical fields of machining, welding and inspection and detection, in particular to a modular chuck.

背景技术Background technique

在机加工领域,在对工件进行加工之前,必须要使用夹具将工件固定在机床上,而且要求必须安装准确、稳固。目前用于固定工件的夹具主要有普通手动自定心卡盘和后拉式液压自定心卡盘两种。In the field of machining, before the workpiece is processed, it is necessary to use a fixture to fix the workpiece on the machine tool, and the installation must be accurate and stable. At present, there are mainly two types of fixtures for fixing workpieces: ordinary manual self-centering chucks and back-pull hydraulic self-centering chucks.

普通手动自定心卡盘精度差,一般重复定位精度大于0.03MM,而且卡盘内部容易进入切削物,致使卡盘转动不畅,且更换卡爪时需要将其旋出,再用同等时间旋入新卡爪。后拉式液压自定心卡盘的重复精度一般在0.01MM左右,更换卡爪时需要旋去紧固螺丝,取下并按上卡爪,再旋紧螺丝。而且上述 2种卡盘夹紧和松开时都存在滑动运动,这样就产生了滑动面的磨损,进而降低了精度和缩短了使用寿命。Ordinary manual self-centering chucks have poor accuracy, and the general repeat positioning accuracy is greater than 0.03MM, and the inside of the chuck is easy to enter the cutting material, resulting in poor rotation of the chuck, and when replacing the jaws, it needs to be unscrewed, and then rotated in the same time Insert new jaws. The repeatability of the rear-pull hydraulic self-centering chuck is generally around 0.01MM. When replacing the jaws, it is necessary to unscrew the fastening screws, remove and press the upper jaws, and then tighten the screws. And all there is sliding movement when above-mentioned 2 kinds of chucks are clamped and unclamped, so just produced the wearing and tearing of sliding surface, and then reduced precision and shortened service life.

同样在焊接和检验检测行业也都需要对各种工件进行可靠、高效固定。Also in the welding and inspection and testing industries, various workpieces need to be fixed reliably and efficiently.

发明内容Contents of the invention

为此,本实用新型实施例提供一种模块化卡盘,以解决现有技术中夹具定位精度低、使用寿命短、易卡死、更换卡爪耗费时间长的问题。Therefore, the embodiment of the present invention provides a modular chuck to solve the problems of low positioning accuracy, short service life, easy jamming, and long time-consuming replacement of the clamps in the prior art.

为了实现上述目的,本实用新型实施例提供如下技术方案:In order to achieve the above object, the utility model embodiment provides the following technical solutions:

根据本实用新型实施例的第一方面,该模块化卡盘包括卡盘体和工件夹持模块,所述工件夹持模块与卡盘体固定连接,所述工件夹持模块上设有用于固定工件的工件固定机构;所述卡盘体包括卡盘本体和本体涨套,所述本体涨套与卡盘本体密封连接,在卡盘本体与本体涨套之间设有卡盘紧固液压腔,卡盘本体连接有与卡盘紧固液压腔连通的卡盘增压机构。According to the first aspect of the embodiment of the present invention, the modular chuck includes a chuck body and a workpiece clamping module, the workpiece clamping module is fixedly connected to the chuck body, and the workpiece clamping module is provided with a The workpiece fixing mechanism; the chuck body includes a chuck body and a body expansion sleeve, the body expansion sleeve is sealed and connected with the chuck body, and a chuck fastening hydraulic chamber is provided between the chuck body and the body expansion sleeve , the chuck body is connected with a chuck booster mechanism communicating with the chuck fastening hydraulic chamber.

进一步地,所述的卡盘增压机构包括卡盘增压螺栓和卡盘增压柱塞,所述卡盘体上开设有连通卡盘紧固液压腔的卡盘柱塞孔,所述卡盘增压柱塞设置在卡盘柱塞孔内,所述卡盘增压螺栓螺纹连接在卡盘柱塞孔的外端内侧。Further, the chuck pressurization mechanism includes a chuck pressurization bolt and a chuck pressurization plunger, and a chuck plunger hole communicating with the chuck fastening hydraulic chamber is opened on the chuck body, and the chuck The booster plunger of the chuck is arranged in the plunger hole of the chuck, and the booster bolt of the chuck is screwed on the inner side of the outer end of the plunger hole of the chuck.

进一步地,所述的工件固定机构包括设置在工件夹持模块内侧的夹持涨套,所述夹持涨套与工件夹持模块密封连接,在工件夹持模块与夹持涨套之间设有工件固定液压腔,所述工件夹持模块上设有连通工件固定液压腔的工件固定增压机构。Further, the workpiece fixing mechanism includes a clamping expansion sleeve arranged inside the workpiece clamping module, the clamping expansion sleeve is sealingly connected with the workpiece clamping module, and a clamping sleeve is arranged between the workpiece clamping module and the clamping expansion sleeve. There is a workpiece fixing hydraulic cavity, and the workpiece clamping module is provided with a workpiece fixing booster mechanism communicating with the workpiece fixing hydraulic cavity.

进一步地,所述的夹持涨套的内侧设有防滑凸起。Further, the inner side of the clamping expansion sleeve is provided with anti-slip protrusions.

进一步的,所述的工件夹持模块上设有密封设置的工件固定液压腔,所述工件夹持模块上设有连通工件固定液压腔的工件固定增压机构,所述工件固定机构包括楔形机构和工件卡盘,所述楔形机构连通工件固定液压腔,所述工件卡盘的中部通过拉结件连接楔形机构,所述工件卡盘的圆周上设有固定工件的固定环,在所述工件卡盘上径向开设有多个变形槽。Further, the workpiece clamping module is provided with a sealed workpiece fixing hydraulic cavity, and the workpiece clamping module is provided with a workpiece fixing booster mechanism connected to the workpiece fixing hydraulic cavity, and the workpiece fixing mechanism includes a wedge mechanism and the workpiece chuck, the wedge-shaped mechanism communicates with the workpiece fixing hydraulic chamber, the middle part of the workpiece chuck is connected to the wedge-shaped mechanism through a tie piece, and the circumference of the workpiece chuck is provided with a fixing ring for fixing the workpiece. A plurality of deformation grooves are arranged radially on the chuck.

进一步的,所述的楔形机构包括楔形柱塞和拉紧锥体,所述工件夹持模块上设有连通工件固定液压腔的工件夹紧柱塞孔,所述楔形柱塞的一端插入工件夹紧柱塞孔内,所述楔形柱塞的另一端与拉紧锥体的锥形面相配合,所述拉结件一端连接拉紧锥体,另一端连接工件卡盘。Further, the wedge mechanism includes a wedge plunger and a tightening cone, the workpiece clamping module is provided with a workpiece clamping plunger hole communicating with the workpiece fixing hydraulic chamber, and one end of the wedge plunger is inserted into the workpiece holder In the hole of the tightening plunger, the other end of the wedge-shaped plunger matches the tapered surface of the tightening cone, one end of the tie is connected to the tightening cone, and the other end is connected to the workpiece chuck.

进一步的,所述的工件固定机构包括固定芯轴,所述工件夹持模块的前端设有一个薄壁圆筒,所述固定芯轴设置在薄壁圆筒内,且薄壁圆筒前端与固定芯轴密封连接,所述固定芯轴后端与工件夹持模块固定连接,在薄壁圆筒与固定芯轴之间设有工件固定液压腔,所述工件夹持模块上设有连通工件固定液压腔的工件固定增压机构。Further, the workpiece fixing mechanism includes a fixed mandrel, the front end of the workpiece clamping module is provided with a thin-walled cylinder, the fixed mandrel is arranged in the thin-walled cylinder, and the front end of the thin-walled cylinder is sealingly connected with the fixed mandrel, The rear end of the fixed mandrel is fixedly connected to the workpiece clamping module, a workpiece fixing hydraulic chamber is provided between the thin-walled cylinder and the fixed mandrel, and a workpiece fixing pressurization chamber connected to the workpiece fixing hydraulic chamber is provided on the workpiece clamping module. mechanism.

进一步的,所述的工件固定增压机构包括工件固定柱塞和工件固定螺栓,所述工件夹持模块上设有连通工件固定液压腔的模块柱塞孔,所述工件固定柱塞设置在模块柱塞孔内,所述工件固定螺栓螺纹连接在模块柱塞孔的外端内侧。Further, the workpiece fixing booster mechanism includes a workpiece fixing plunger and a workpiece fixing bolt, the workpiece clamping module is provided with a module plunger hole communicating with the workpiece fixing hydraulic chamber, and the workpiece fixing plunger is set on the module In the plunger hole, the workpiece fixing bolts are threaded on the inner side of the outer end of the module plunger hole.

进一步的,所述的工件固定机构包括固定轴、锁紧轴套和蝶形弹簧片,所述固定轴固定在工件夹持模块前端,所述锁紧轴套套设在固定轴上,所述锁紧轴套两侧的固定轴上分别设有蝶形弹簧片,所述固定轴前端设有压紧蝶形弹簧片的弹簧压紧机构。Further, the workpiece fixing mechanism includes a fixed shaft, a locking sleeve and a butterfly spring piece, the fixed shaft is fixed at the front end of the workpiece clamping module, the locking sleeve is sleeved on the fixed shaft, and the lock The fixed shafts on both sides of the tight sleeve are respectively provided with butterfly spring pieces, and the front end of the fixed shaft is provided with a spring pressing mechanism for pressing the butterfly spring pieces.

进一步的,所述的工件夹持模块前端设有一个固定套,所述工件固定机构包括空心弹簧锥形套和压紧螺纹套,所述空心弹簧锥形套设置在固定套前端内侧,所述固定套的前端内侧以及空心弹簧锥形套后部外侧为锥形面,所述空心弹簧锥形套上开设有多个变形槽,所述压紧螺纹套螺纹连接在固定套前端外侧,且压紧螺纹套的前端压紧在空心弹簧锥形套的前端。Further, the front end of the workpiece clamping module is provided with a fixed sleeve, and the workpiece fixing mechanism includes a hollow spring conical sleeve and a compression threaded sleeve, the hollow spring conical sleeve is arranged inside the front end of the fixed sleeve, and the The inside of the front end of the fixed sleeve and the outside of the rear part of the hollow spring conical sleeve are conical surfaces, and a plurality of deformation grooves are opened on the hollow spring conical sleeve. The front end of the tight threaded sleeve is pressed against the front end of the hollow spring conical sleeve.

本实用新型实施例具有如下优点:Embodiments of the utility model have the following advantages:

本实用新型实施例利用卡盘增压机构增加卡盘紧固液压腔内液压油等工作介质的压力,进而使得本体涨套发生变形,本体涨套涨紧固定工件夹持模块,由于需要夹持固定的工件形状有若干种,所以对应的设有多个工件夹持模块,工件通过工件固定机构固定在工件夹持模块上,工件夹持模块通过夹持涨套自动涨紧固定,实现自动定心,定位精度更高,而且没有磨损,使用寿命更长。The embodiment of the utility model utilizes the chuck pressurization mechanism to increase the pressure of the working medium such as the hydraulic oil in the chuck fastening hydraulic chamber, thereby causing the body expansion sleeve to deform, and the body expansion sleeve expands and tightens the fixed workpiece clamping module. Due to the need for clamping There are several kinds of fixed workpiece shapes, so there are multiple workpiece clamping modules correspondingly. The workpiece is fixed on the workpiece clamping module through the workpiece fixing mechanism, and the workpiece clamping module is automatically tightened and fixed by clamping expansion sleeves to realize automatic positioning Center, higher positioning accuracy, no wear, longer service life.

附图说明Description of drawings

为了更清楚地说明本实用新型的实施方式或现有技术中的技术方案,下面将对实施方式或现有技术描述中所需要使用的附图作简单地介绍。显而易见地,下面描述中的附图仅仅是示例性的,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据提供的附图引伸获得其它的实施附图。In order to more clearly illustrate the implementation of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the implementation or the prior art. Apparently, the drawings in the following description are only exemplary, and those skilled in the art can also obtain other implementation drawings according to the provided drawings without creative work.

本说明书所绘示的结构、比例、大小等,均仅用以配合说明书所揭示的内容,以供熟悉此技术的人士了解与阅读,并非用以限定本实用新型可实施的限定条件,故不具技术上的实质意义,任何结构的修饰、比例关系的改变或大小的调整,在不影响本实用新型所能产生的功效及所能达成的目的下,均应仍落在本实用新型所揭示的技术内容得能涵盖的范围内。The structures, proportions, sizes, etc. shown in this manual are only used to cooperate with the content disclosed in the manual for the understanding and reading of those who are familiar with this technology, and are not used to limit the limited conditions that the utility model can be implemented, so there is no In technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the invention disclosed in the utility model without affecting the effect and purpose of the utility model. within the scope of the technical content.

图1为本实用新型实施例1提供的一种模块化卡盘的示意图;Fig. 1 is the schematic diagram of a kind of modular chuck that the utility model embodiment 1 provides;

图2为本实用新型实施例1提供的模块化卡盘的右视图;Fig. 2 is the right side view of the modular chuck provided by Embodiment 1 of the utility model;

图3为图2的A-A剖视图;Fig. 3 is A-A sectional view of Fig. 2;

图4为图3中B处的局部放大图;Fig. 4 is a partial enlarged view of place B in Fig. 3;

图5为图3中C处的局部放大图;Fig. 5 is a partial enlarged view of place C in Fig. 3;

图6为本实用新型实施例2提供的模块化卡盘的结构示意图;Fig. 6 is a schematic structural view of the modular chuck provided by Embodiment 2 of the present invention;

图7为本实用新型实施例2的工件夹持模块沿轴线的纵面剖视图;Fig. 7 is a vertical cross-sectional view along the axis of the workpiece clamping module of Embodiment 2 of the present invention;

图8为本实用新型实施例2的工件夹持模块的爆炸示意图;Fig. 8 is an exploded schematic diagram of the workpiece clamping module of Embodiment 2 of the present invention;

图9为本实用新型实施例3提供的模块化卡盘的结构示意图;Fig. 9 is a schematic structural diagram of the modular chuck provided by Embodiment 3 of the present invention;

图10为本实用新型实施例3的工件夹持模块沿轴线的纵面剖视图;Fig. 10 is a vertical sectional view along the axis of the workpiece clamping module according to Embodiment 3 of the present invention;

图11为本实用新型实施例4提供的模块化卡盘的结构示意图;Fig. 11 is a schematic structural view of the modular chuck provided by Embodiment 4 of the present utility model;

图12为本实用新型实施例4的工件夹持模块沿轴线的纵面剖视图;Fig. 12 is a vertical cross-sectional view along the axis of the workpiece clamping module of Embodiment 4 of the present utility model;

图13为本实用新型实施例5的工件夹持模块沿轴线的纵面剖视图;Fig. 13 is a vertical cross-sectional view along the axis of the workpiece clamping module of Embodiment 5 of the present invention;

图14为本实用新型实施例5中空心弹簧锥形套的结构示意图;Fig. 14 is a schematic structural view of a hollow spring tapered sleeve in Embodiment 5 of the present utility model;

图中:1-机床主轴 2-卡盘体 3-工件夹持模块 4-工件 5-卡盘本体 6-本体涨套7-卡盘紧固液压腔 8-密封圈 9-卡盘增压柱塞 10-卡盘增压螺栓 11-卡盘柱塞孔 12-夹持涨套 13-工件固定液压腔 14-工件固定柱塞 15-工件固定螺栓 16-模块柱塞孔 17-防滑凸起 18-密封法兰 19-楔形柱塞20-拉紧锥体 21-拉结螺栓 22-拉结螺母 23-定位盘24-工件卡盘 25-定位销 26-变形槽 27-固定芯轴 28-薄壁圆筒 29-蝶形弹簧片 30- 锁紧轴套 31-压紧套 32-压紧螺母 33-固定轴 34-固定套 35-空心弹簧锥形套 36-压紧螺纹套。In the figure: 1-machine tool spindle 2-chuck body 3-workpiece clamping module 4-workpiece 5-chuck body 6-body expansion sleeve 7-chuck fastening hydraulic chamber 8-sealing ring 9-chuck booster column Plug 10-Chuck Boost Bolt 11-Chuck Plunger Hole 12-Clamping Sleeve 13-Workpiece Fixing Hydraulic Chamber 14-Workpiece Fixing Plunger 15-Workpiece Fixing Bolt 16-Module Plunger Hole 17-Anti-skid Protrusion 18 -Sealing flange 19-Wedge-shaped plunger 20-Tightening cone 21-Tie bolt 22-Tie nut 23-Location plate 24-Workpiece chuck 25-Location pin 26-Deformation groove 27-Fixed mandrel 28-Thin-walled circle Tube 29-butterfly spring leaf 30-locking shaft sleeve 31-compression sleeve 32-compression nut 33-fixed shaft 34-fixation sleeve 35-hollow spring tapered sleeve 36-compression threaded sleeve.

具体实施方式Detailed ways

以下由特定的具体实施例说明本实用新型的实施方式,熟悉此技术的人士可由本说明书所揭露的内容轻易地了解本实用新型的其他优点及功效,显然,所描述的实施例是本实用新型一部分实施例,而不是全部的实施例。基于本实用新型中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本实用新型保护的范围。本说明书中所引用的如“上”、“下”、“左”、“右”、“中间”等的用语,亦仅为便于叙述的明了,而非用以限定本实用新型可实施的范围,其相对关系的改变或调整,在无实质变更技术内容下,当亦视为本实用新型可实施的范畴。The implementation of the present utility model is illustrated by specific specific examples below. Those who are familiar with this technology can easily understand other advantages and effects of the present utility model from the contents disclosed in this description. Obviously, the described embodiments are the embodiment of the present utility model. Some, but not all, embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model. Terms such as "upper", "lower", "left", "right", and "middle" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the utility model. , the change or adjustment of its relative relationship, without substantive changes in the technical content, should also be regarded as the scope of the utility model that can be implemented.

实施例1Example 1

参见图1,该模块化卡盘包括卡盘体2和工件夹持模块3,工件夹持模块 3与卡盘体2固定连接,工件夹持模块3上设有用于固定工件4的工件固定机构,卡盘体2用于连接到机床主轴1上,卡盘体2通过螺栓直接与机床主轴1 固定连接。Referring to Fig. 1, the modular chuck includes a chuck body 2 and a workpiece clamping module 3, the workpiece clamping module 3 is fixedly connected to the chuck body 2, and the workpiece clamping module 3 is provided with a workpiece fixing mechanism for fixing the workpiece 4 , the chuck body 2 is used to connect to the machine tool spindle 1, and the chuck body 2 is directly fixedly connected to the machine tool spindle 1 through bolts.

参见图2~4,卡盘体2包括卡盘本体5和本体涨套6,本体涨套6与卡盘本体5密封连接,在卡盘本体5与本体涨套6之间设有卡盘紧固液压腔7,卡盘本体5连接有与卡盘紧固液压腔7连通的卡盘增压机构。本实施例的卡盘增压机构包括卡盘增压螺栓10和卡盘增压柱塞9,卡盘体2上开设有连通卡盘紧固液压腔7的卡盘柱塞孔11,卡盘增压柱塞9设置在卡盘柱塞孔11内,卡盘增压螺栓10螺纹连接在卡盘柱塞孔11的外端内侧。Referring to Figures 2 to 4, the chuck body 2 includes a chuck body 5 and a body expansion sleeve 6, and the body expansion sleeve 6 is in sealing connection with the chuck body 5, and a chuck clamp is provided between the chuck body 5 and the body expansion sleeve 6. Solid hydraulic chamber 7, the chuck body 5 is connected with a chuck booster mechanism communicated with the chuck fastening hydraulic chamber 7. The chuck pressurization mechanism of this embodiment includes a chuck pressurization bolt 10 and a chuck pressurization plunger 9, and a chuck plunger hole 11 communicating with the chuck fastening hydraulic chamber 7 is opened on the chuck body 2, and the chuck The booster plunger 9 is arranged in the chuck plunger hole 11 , and the chuck booster bolt 10 is screwed on the inner side of the outer end of the chuck plunger hole 11 .

参见图5,工件固定机构包括设置在工件夹持模块3内侧的夹持涨套12,夹持涨套12与工件夹持模块3密封连接,在工件夹持模块3与夹持涨套12 之间设有工件固定液压腔13,工件夹持模块3上设有连通工件固定液压腔13 的工件固定增压机构。为了固定更加牢固,本实施例在夹持涨套12的内侧设有防滑凸起17。工件固定增压机构包括工件固定柱塞14和工件固定螺栓15,工件夹持模块3上设有连通工件固定液压腔13的模块柱塞孔16,工件固定柱塞14设置在模块柱塞孔16内,工件固定柱塞14的圆周上固定有密封圈8,工件固定螺栓15螺纹连接在模块柱塞孔16的外端内侧。Referring to Fig. 5, the workpiece fixing mechanism includes a clamping expansion sleeve 12 arranged on the inner side of the workpiece clamping module 3, and the clamping expansion sleeve 12 is in sealing connection with the workpiece clamping module 3, between the workpiece clamping module 3 and the clamping expansion sleeve 12 A workpiece-fixing hydraulic chamber 13 is provided between them, and a workpiece-fixing booster mechanism connected to the workpiece-fixing hydraulic chamber 13 is provided on the workpiece clamping module 3 . In order to fix more firmly, in this embodiment, an anti-slip protrusion 17 is provided on the inner side of the clamping expansion sleeve 12 . The workpiece fixing booster mechanism includes a workpiece fixing plunger 14 and a workpiece fixing bolt 15. The workpiece clamping module 3 is provided with a module plunger hole 16 communicating with the workpiece fixing hydraulic chamber 13, and the workpiece fixing plunger 14 is arranged in the module plunger hole 16. Inside, a sealing ring 8 is fixed on the circumference of the workpiece fixing plunger 14 , and the workpiece fixing bolt 15 is threaded on the inner side of the outer end of the module plunger hole 16 .

本实施例中的工件4为圆柱体,也可以用于夹持圆筒体,将工件4放入夹持涨套12内侧,通过旋转工件固定螺栓15从而推动工件固定柱塞14在模块柱塞孔16内移动,使得工件固定液压腔13内的液压油等工作介质压力增加,进而使得夹持涨套12变形夹紧工件4。工件夹持模块3放入本体涨套6内,旋转卡盘增压螺栓10,推动卡盘增压柱塞9在卡盘柱塞孔11内移动,卡盘紧固液压腔7内的液压油等工作介质压力增加,进而使得本体涨套6夹紧工件夹持模块3,实现自动定心固定,定位精度更高,而且没有磨损,使用寿命更长。The workpiece 4 in this embodiment is a cylinder, which can also be used to clamp the cylinder. Put the workpiece 4 into the inner side of the clamping expansion sleeve 12, and rotate the workpiece fixing bolt 15 to push the workpiece fixing plunger 14 on the module plunger. The movement in the hole 16 increases the pressure of the working medium such as hydraulic oil in the workpiece fixing hydraulic chamber 13 , thereby causing the clamping expansion sleeve 12 to deform and clamp the workpiece 4 . The workpiece clamping module 3 is put into the body expansion sleeve 6, and the chuck booster bolt 10 is rotated to push the chuck booster plunger 9 to move in the chuck plunger hole 11, and the chuck tightens the hydraulic oil in the hydraulic chamber 7. Wait for the pressure of the working medium to increase, and then make the body expansion sleeve 6 clamp the workpiece clamping module 3, realize automatic centering and fixing, the positioning accuracy is higher, and there is no wear and tear, and the service life is longer.

实施例2Example 2

参见图6~8,本实施例的工件夹持模块3上设有密封设置的工件固定液压腔13,工件夹持模块3后侧设有密封工件固定液压腔13的密封法兰18。工件夹持模块3上设有连通工件固定液压腔13的工件固定增压机构,工件固定机构包括楔形机构和工件卡盘24,楔形机构连通工件固定液压腔13,工件卡盘 24的中部通过拉结件连接楔形机构,工件夹持模块3的前侧固定有一个定位盘23,工件卡盘24通过定位销25连接定位盘23,而且定位销25的直径小于工件卡盘24上定位孔的直径,这样工件卡盘24可以相对定位销25发生一定的移动变形。工件卡盘24的圆周上设有固定工件4的固定环,工件4固定在固定环的内侧,在工件卡盘24上径向开设有多个变形槽26。本实施例中的卡盘体2与工件固定增压机构结构与实施例1相同,在此不再赘述。Referring to FIGS. 6-8 , the workpiece clamping module 3 of this embodiment is provided with a sealed workpiece fixing hydraulic cavity 13 , and the rear side of the workpiece clamping module 3 is provided with a sealing flange 18 for sealing the workpiece fixing hydraulic cavity 13 . The workpiece clamping module 3 is provided with a workpiece fixing booster mechanism that communicates with the workpiece fixing hydraulic chamber 13. The workpiece fixing mechanism includes a wedge mechanism and a workpiece chuck 24. The wedge mechanism communicates with the workpiece fixing hydraulic chamber 13. The middle part of the workpiece chuck 24 is pulled Knots are connected to the wedge-shaped mechanism, and a positioning disc 23 is fixed on the front side of the workpiece clamping module 3, and the workpiece chuck 24 is connected to the positioning disc 23 through a positioning pin 25, and the diameter of the positioning pin 25 is smaller than the diameter of the positioning hole on the workpiece chuck 24 , so that the workpiece chuck 24 can move and deform relative to the positioning pin 25 to a certain extent. A fixing ring for fixing the workpiece 4 is arranged on the circumference of the workpiece chuck 24 , and the workpiece 4 is fixed inside the fixing ring, and a plurality of deformation grooves 26 are radially opened on the workpiece chuck 24 . The structures of the chuck body 2 and the workpiece fixing pressurization mechanism in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

楔形机构包括楔形柱塞19和拉紧锥体20,工件夹持模块3上设有连通工件固定液压腔13的工件夹紧柱塞孔,楔形柱塞19的一端插入工件夹紧柱塞孔内,楔形柱塞19的另一端与拉紧锥体20的锥形面相配合,拉结件一端连接拉紧锥体20,另一端连接工件卡盘24。本实施例中的拉结件包括拉结螺栓21 和拉结螺母22拉结螺栓21由前至后穿过工件卡盘24与拉紧锥体20后与拉结螺母22连接。The wedge-shaped mechanism includes a wedge-shaped plunger 19 and a tightening cone 20. The workpiece clamping module 3 is provided with a workpiece clamping plunger hole communicating with the workpiece fixing hydraulic chamber 13. One end of the wedge-shaped plunger 19 is inserted into the workpiece clamping plunger hole. , the other end of the wedge-shaped plunger 19 matches the tapered surface of the tightening cone 20 , one end of the tie is connected to the tightening cone 20 , and the other end is connected to the workpiece chuck 24 . The tie piece in this embodiment includes tie bolts 21 and tie nuts 22 . The tie bolts 21 pass through the workpiece chuck 24 and the tightening cone 20 from front to back to connect with the tie nuts 22 .

通过旋转工件固定螺栓15从而推动工件固定柱塞14在模块柱塞孔16内移动,使得工件固定液压腔13内的液压油等工作介质压力增加,进而推动楔形柱塞19向工件夹紧柱塞孔的外侧移动,楔形柱塞19进一步推动拉紧锥体 20向后侧移动,拉紧锥体20通过拉结螺栓21带动工件卡盘24向后侧移动,工件4放置在工件卡盘24的固定环内侧,工件卡盘24向后侧移动的过程中发生一定变形,变形槽26贯穿固定环,固定环的直径缩小,进而夹紧工件4。本实施例的工件夹持模块3可以非常方便地夹持长度较小的圆盘或者圆环。By rotating the workpiece fixing bolt 15, the workpiece fixing plunger 14 is pushed to move in the module plunger hole 16, so that the pressure of the working medium such as hydraulic oil in the workpiece fixing hydraulic chamber 13 increases, and then the wedge-shaped plunger 19 is pushed to the workpiece clamping plunger The outside of the hole moves, and the wedge-shaped plunger 19 further pushes the tightening cone 20 to move to the rear side. The tightening cone 20 drives the workpiece chuck 24 to move to the rear side through the tie bolt 21, and the workpiece 4 is placed on the workpiece chuck 24. Inside the fixed ring, the workpiece chuck 24 is deformed to a certain extent during the process of moving to the rear side. The deformation groove 26 runs through the fixed ring, and the diameter of the fixed ring shrinks, thereby clamping the workpiece 4 . The workpiece clamping module 3 of this embodiment can very conveniently clamp a disc or an annulus with a small length.

实施例3Example 3

参见图9~10,本实施例中工件夹持模块3的工件固定机构包括固定芯轴 27,工件夹持模块3的前端设有一个薄壁圆筒28,固定芯轴27设置在薄壁圆筒28内,且薄壁圆筒28前端与固定芯轴27密封连接,固定芯轴27后端与工件夹持模块3固定连接,在薄壁圆筒28与固定芯轴27之间设有工件固定液压腔13,工件夹持模块3上设有连通工件固定液压腔13的工件固定增压机构。工件4套在薄壁圆筒28的外侧,薄壁圆筒28的厚度根据需要进行选择,本实施例中的薄壁圆筒28的厚度为1~5mm。9-10, the workpiece fixing mechanism of the workpiece clamping module 3 in this embodiment includes a fixed mandrel 27, a thin-walled cylinder 28 is provided at the front end of the workpiece clamping module 3, and the fixed mandrel 27 is arranged in the thin-walled cylinder 28, In addition, the front end of the thin-walled cylinder 28 is sealingly connected to the fixed mandrel 27, and the rear end of the fixed mandrel 27 is fixedly connected to the workpiece clamping module 3. The module 3 is provided with a workpiece fixing booster mechanism communicating with the workpiece fixing hydraulic chamber 13 . The workpiece 4 is set on the outside of the thin-walled cylinder 28, and the thickness of the thin-walled cylinder 28 is selected according to the needs. The thickness of the thin-walled cylinder 28 in this embodiment is 1-5 mm.

工件固定增压机构包括工件固定柱塞14和工件固定螺栓15,工件夹持模块3上设有连通工件固定液压腔13的模块柱塞孔16,工件固定柱塞14设置在模块柱塞孔16内,工件固定螺栓15螺纹连接在模块柱塞孔16的外端内侧。The workpiece fixing booster mechanism includes a workpiece fixing plunger 14 and a workpiece fixing bolt 15. The workpiece clamping module 3 is provided with a module plunger hole 16 communicating with the workpiece fixing hydraulic chamber 13, and the workpiece fixing plunger 14 is arranged in the module plunger hole 16. Inside, the workpiece fixing bolt 15 is threaded on the inner side of the outer end of the module plunger hole 16 .

通过旋转工件固定螺栓15从而推动工件固定柱塞14在模块柱塞孔16内移动,使得工件固定液压腔13内的液压油等工作介质压力增加,进而推动薄壁圆筒28向外侧变形,薄壁圆筒28涨紧固定工件4,本实施例中的工件夹持模块3可以非常方便夹持圆筒形工件4的内壁,不妨碍对工件4外壁进行加工。By rotating the workpiece fixing bolt 15, the workpiece fixing plunger 14 is pushed to move in the module plunger hole 16, so that the pressure of the working medium such as hydraulic oil in the workpiece fixing hydraulic chamber 13 increases, and then pushes the thin-walled cylinder 28 to deform outward, and the thin-walled cylinder 28 Tightening and fixing the workpiece 4, the workpiece clamping module 3 in this embodiment can very conveniently clamp the inner wall of the cylindrical workpiece 4 without hindering the processing of the outer wall of the workpiece 4.

实施例4Example 4

参见图11~12,本实施例中的工件固定机构包括固定轴33、锁紧轴套30 和蝶形弹簧片29,固定轴33固定在工件夹持模块3前端,锁紧轴套30套设在固定轴33上,锁紧轴套30两侧的固定轴33上分别设有蝶形弹簧片29,固定轴33前端设有压紧蝶形弹簧片29的弹簧压紧机构。本实施例中的弹簧压紧机构包括压紧套31和压紧螺母32,压紧套31套设在固定轴33的前端,压紧螺母32连接在压紧套31前侧的固定轴33上。本实施例中在锁紧轴套30的每侧均设有两个蝶形弹簧片29,而且两个蝶形弹簧片29反方向成V形设置,可以提供更大的夹紧力。为了更加有利于蝶形弹簧片29变形,在蝶形弹簧片29 上开设有多个变形槽26。11-12, the workpiece fixing mechanism in this embodiment includes a fixed shaft 33, a locking sleeve 30 and a butterfly spring 29, the fixed shaft 33 is fixed on the front end of the workpiece clamping module 3, and the locking sleeve 30 is sleeved On the fixed shaft 33 , the fixed shafts 33 on both sides of the locking sleeve 30 are respectively provided with butterfly spring sheets 29 , and the front end of the fixed shaft 33 is provided with a spring pressing mechanism for pressing the butterfly spring sheets 29 . The spring compression mechanism in this embodiment includes a compression sleeve 31 and a compression nut 32, the compression sleeve 31 is sleeved on the front end of the fixed shaft 33, and the compression nut 32 is connected to the fixed shaft 33 on the front side of the compression sleeve 31 . In this embodiment, two butterfly spring pieces 29 are provided on each side of the locking sleeve 30 , and the two butterfly spring pieces 29 are arranged in a V shape in opposite directions, which can provide greater clamping force. In order to facilitate the deformation of the butterfly spring piece 29 , a plurality of deformation grooves 26 are opened on the butterfly spring piece 29 .

旋转压紧螺母32后,压紧套31向后侧挤压锁紧轴套30与蝶形弹簧片29,蝶形弹簧片29受压后变形,直径增加,从而夹紧在工件4的两端内壁,实现对工件4的牢固固定,本实施例可以非常方便夹持圆筒形工件4,不妨碍对工件4外壁进行加工。After the compression nut 32 is rotated, the compression sleeve 31 squeezes the locking sleeve 30 and the butterfly spring piece 29 to the rear side, and the butterfly spring piece 29 deforms after being pressed, and the diameter increases, thereby clamping on both ends of the workpiece 4 The inner wall realizes the firm fixing of the workpiece 4, and this embodiment can very conveniently clamp the cylindrical workpiece 4 without hindering the processing of the outer wall of the workpiece 4.

实施例5Example 5

参见图13~14,本实施例在工件夹持模块3前端设有一个固定套34,工件固定机构包括空心弹簧锥形套35和压紧螺纹套36,空心弹簧锥形套35设置在固定套34前端内侧,固定套34的前端内侧以及空心弹簧锥形套35后部外侧为锥形面,空心弹簧锥形套35上开设有多个变形槽26,压紧螺纹套36螺纹连接在固定套34前端外侧,且压紧螺纹套36的前端压紧在空心弹簧锥形套 35的前端。工件4的一端固定在空心弹簧锥形套35内侧。Referring to Figures 13-14, the present embodiment is provided with a fixed sleeve 34 at the front end of the workpiece clamping module 3, and the workpiece fixing mechanism includes a hollow spring conical sleeve 35 and a compression threaded sleeve 36, and the hollow spring conical sleeve 35 is arranged on the fixed sleeve 34 front end inner side, the front end inner side of fixed sleeve 34 and the outside of hollow spring tapered sleeve 35 rear parts are tapered surfaces, and hollow spring tapered sleeve 35 is provided with a plurality of deformation grooves 26, and compression threaded sleeve 36 is threadedly connected to fixed sleeve 34 front end outsides, and the front end of compression threaded sleeve 36 is pressed on the front end of hollow spring tapered sleeve 35. One end of the workpiece 4 is fixed on the inner side of the hollow spring conical sleeve 35 .

旋转压紧螺纹套36后推动空心弹簧锥形套35向固定套34内侧移动,由于固定套34的前端内侧以及空心弹簧锥形套35后部外侧为锥形面,且空心弹簧锥形套35上开设有多个变形槽26,空心弹簧锥形套35向固定套34内侧移动的过程中发生变形,内径变小,从而将工件4夹紧固定。After rotating and compressing the threaded sleeve 36, the hollow spring tapered sleeve 35 is moved to the inside of the fixed sleeve 34, because the inside of the front end of the fixed sleeve 34 and the outside of the rear portion of the hollow spring tapered sleeve 35 are conical surfaces, and the hollow spring tapered sleeve 35 A plurality of deformation grooves 26 are opened on the top, and the hollow spring conical sleeve 35 deforms during the movement to the inner side of the fixed sleeve 34, and the inner diameter becomes smaller, thereby clamping and fixing the workpiece 4.

虽然,上文中已经用一般性说明及具体实施例对本实用新型作了详尽的描述,但在本实用新型基础上,可以对之作一些修改或改进,这对本领域技术人员而言是显而易见的。因此,在不偏离本实用新型精神的基础上所做的这些修改或改进,均属于本实用新型要求保护的范围。Although the utility model has been described in detail with general description and specific examples above, some modifications or improvements can be made on the basis of the utility model, which will be obvious to those skilled in the art. Therefore, the modifications or improvements made on the basis of not departing from the spirit of the utility model all belong to the protection scope of the utility model.

Claims (10)

1. A modular chuck, characterized by: the modularized chuck comprises a chuck body (2) and a workpiece clamping module (3), wherein the workpiece clamping module (3) is fixedly connected with the chuck body (2), and a workpiece fixing mechanism for fixing a workpiece (4) is arranged on the workpiece clamping module (3); chuck body (2) rise cover (6) including chuck body (5) and body, the body rises cover (6) and chuck body (5) sealing connection, rises at chuck body (5) and body and is equipped with chuck fastening hydraulic pressure chamber (7) between cover (6), and chuck body (5) are connected with the chuck booster mechanism who communicates with chuck fastening hydraulic pressure chamber (7).
2. The modular chuck as set forth in claim 1, wherein: chuck booster mechanism include chuck pressure boost bolt (10) and chuck pressure boost plunger (9), set up chuck plunger hole (11) that communicate chuck fastening hydraulic pressure chamber (7) on chuck body (2), chuck pressure boost plunger (9) set up in chuck plunger hole (11), chuck pressure boost bolt (10) threaded connection is inboard in the outer end in chuck plunger hole (11).
3. The modular chuck as set forth in claim 1, wherein: the workpiece fixing mechanism comprises a clamping expansion sleeve (12) arranged on the inner side of a workpiece clamping module (3), the clamping expansion sleeve (12) is connected with the workpiece clamping module (3) in a sealing mode, a workpiece fixing hydraulic cavity (13) is arranged between the workpiece clamping module (3) and the clamping expansion sleeve (12), and a workpiece fixing pressurizing mechanism for communicating the workpiece fixing hydraulic cavity (13) is arranged on the workpiece clamping module (3).
4. The modular chuck of claim 3, wherein: the inner side of the clamping expansion sleeve (12) is provided with an antiskid bulge (17).
5. The modular chuck as set forth in claim 1, wherein: workpiece clamping module (3) on be equipped with the fixed hydraulic pressure chamber of work piece (13) of sealed setting, be equipped with the fixed booster mechanism of work piece that communicates the fixed hydraulic pressure chamber of work piece (13) on workpiece clamping module (3), work piece fixed establishment includes wedge mechanism and work piece chuck (24), wedge mechanism communicates the fixed hydraulic pressure chamber of work piece (13), the middle part of work piece chuck (24) is through drawknot spare connection wedge mechanism, be equipped with the solid fixed ring of fixed work piece (4) on the circumference of work piece chuck (24) radially seted up a plurality of deformation grooves (26) on work piece chuck (24).
6. The modular chuck of claim 5, wherein: the wedge-shaped mechanism comprises a wedge-shaped plunger (19) and a tensioning cone (20), a workpiece clamping plunger hole communicated with a workpiece fixing hydraulic cavity (13) is formed in the workpiece clamping module (3), one end of the wedge-shaped plunger (19) is inserted into the workpiece clamping plunger hole, the other end of the wedge-shaped plunger (19) is matched with a conical surface of the tensioning cone (20), one end of the drawknot piece is connected with the tensioning cone (20), and the other end of the drawknot piece is connected with the workpiece chuck (24).
7. The modular chuck as set forth in claim 1, wherein: work piece fixed establishment include fixed dabber (27), the front end of work piece centre gripping module (3) is equipped with a thin wall drum (28), fixed dabber (27) set up in thin wall drum (28), and thin wall drum (28) front end and fixed dabber (27) sealing connection, fixed dabber (27) rear end and work piece centre gripping module (3) fixed connection are equipped with the fixed hydraulic pressure chamber of work piece (13) between thin wall drum (28) and fixed dabber (27), be equipped with the fixed booster mechanism of work piece that communicates the fixed hydraulic pressure chamber of work piece (13) on work piece centre gripping module (3).
8. The modular chuck as in claim 3, 5 or 7, wherein: the fixed booster mechanism of work piece include work piece fixed plunger (14) and work piece fixing bolt (15), be equipped with module plunger hole (16) that communicate fixed hydraulic pressure chamber of work piece (13) on work piece centre gripping module (3), work piece fixed plunger (14) set up in module plunger hole (16), work piece fixing bolt (15) threaded connection is inboard at the outer end in module plunger hole (16).
9. The modular chuck as set forth in claim 1, wherein: the workpiece fixing mechanism comprises a fixing shaft (33), a locking shaft sleeve (30) and butterfly spring pieces (29), the fixing shaft (33) is fixed at the front end of the workpiece clamping module (3), the locking shaft sleeve (30) is sleeved on the fixing shaft (33), the butterfly spring pieces (29) are arranged on the fixing shaft (33) on two sides of the locking shaft sleeve (30) respectively, and a spring pressing mechanism for pressing the butterfly spring pieces (29) is arranged at the front end of the fixing shaft (33).
10. The modular chuck as set forth in claim 1, wherein: workpiece clamping module (3) front end be equipped with a fixed cover (34), workpiece fixing mechanism includes hollow spring taper sleeve (35) and compresses tightly thread bush (36), hollow spring taper sleeve (35) set up at fixed cover (34) front end inboard, the front end inboard and the hollow spring taper sleeve (35) rear portion outside of fixed cover (34) are the conical surface, a plurality of deformation grooves (26) have been seted up on hollow spring taper sleeve (35), compress tightly thread bush (36) threaded connection in fixed cover (34) front end outside, and compress tightly the front end of thread bush (36) and compress tightly the front end at hollow spring taper sleeve (35).
CN201920522555.0U 2019-04-17 2019-04-17 A modular chuck Expired - Fee Related CN209754048U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109894643A (en) * 2019-04-17 2019-06-18 上海建盛机械配件有限公司 A kind of modularization chuck

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109894643A (en) * 2019-04-17 2019-06-18 上海建盛机械配件有限公司 A kind of modularization chuck
CN109894643B (en) * 2019-04-17 2024-02-27 上海建盛机械配件有限公司 Modularized chuck

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Granted publication date: 20191210