CN206717057U

CN206717057U - A kind of axially position claw and clamping device

Info

Publication number: CN206717057U
Application number: CN201720474292.1U
Authority: CN
Inventors: 邓刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-04-28
Filing date: 2017-04-28
Publication date: 2017-12-08
Anticipated expiration: 2027-04-28

Abstract

A kind of axially position claw and clamping device are the utility model is related to, belongs to field of machining.The axially position claw includes claw body, and claw body has relative first end and the second end, and first end has clamping face, and first end is offered through the hole of clamping face.Axially position claw also includes the positioning aid coordinated with hole, and positioning aid is included in the Part I that hole is stretched out when coordinating with hole.The axially position claw structure is simple, can fully meet that the institute of common claw is functional, and and can is used for the positioning and clamping of workpiece by positioning auxiliary accessories, and the service life of claw is longer.Clamping device includes chuck and above-mentioned axially position claw, axially position claw are connected in chuck, and this is designed to that axially position position can be adjusted according to the workpiece of different length, size, mitigates the axially position difficulty of workpiece, adaptability is stronger.

Description

A kind of axially position claw and clamping device

Technical field

It the utility model is related to field of machining, and more particularly to a kind of axially position claw and clamping device.

Background technology

In machine industry, lathe particularly numerically controlled lathe is generally applicable, for processing disk class or the revolution of axle class Body part.

Current numerically controlled lathe, the widely used clamping device of engine lathe are three-jaw self-centering chuck or chuck, The form of chuck includes hand, fluid pressure type and pneumatic type etc..Wherein, scroll chuck is suitable for clamping cylinder class, triangle or six The workpiece of angular class, chuck, can be with clamping square class or octagons in addition to can be with clamping column workpiece Class workpiece.

But there is the shortcomings that one very big in existing chuck three-jaw or four paws, exactly for requiring work during batch turnery processing The function of part axially position is relatively difficult to realize.In consideration of it, the method for being typically employed in lathe main axis hole mounting and positioning device is come Workpiece axially position is realized, but adjusts position location and is relatively difficult to operate, is wasted time and energy；Or directly process and determine on claw Position step to position to workpiece, but this to the influence of damaging property of claw, can influence the service life of claw, and different Workpiece also needs to different positioning steps, and the adaptability of claw is poor.

Utility model content

One of the purpose of this utility model is to provide a kind of axially position claw, and the axially position claw structure is simple, It is functional that the institute of common claw can be fully met, and can is used for the positioning and clamping of workpiece, and claw by positioning auxiliary accessories Service life it is longer.

Another object of the present utility model is to provide a kind of clamping device, and the clamping device can be according to different length The workpiece adjustment axially position position of degree, size, mitigates the axially position difficulty of workpiece, and adaptability is stronger.

The utility model solves its technical problem using following technical scheme to realize：

The utility model proposes a kind of axially position claw, including claw body, claw body has relative first end With the second end, first end has clamping face, and first end is offered through the hole of clamping face.

Axially position claw also includes the positioning aid coordinated with hole, and positioning aid, which is included in when coordinating with hole, to be stretched out The Part I in hole.

Further, in the utility model preferred embodiment, Part I includes the first limited block and the second limited block, One end of second limited block is connected against clamping face, one end of the remote clamping face of the second limited block with the first limited block, and first Direction of the limited block along the extension in hole is provided with the first screw thread.

Further, in the utility model preferred embodiment, positioning aid is stretched into as when being additionally included in and coordinating with hole The Part II in hole, Part II are connected close to one end of clamping face with one end of the second limited block against clamping face, second Divide along the direction of the extension in hole and be provided with the second screw thread.

Further, in the utility model preferred embodiment, hole is screwed hole, and positioning aid is screw rod.

Further, in the utility model preferred embodiment, axially position claw also includes connecting portion, and connecting portion includes First contiguous block and the second contiguous block, one end of the first contiguous block are connected to the bottom of claw body, and the first contiguous block is away from card One end of pawl body is connected with the second contiguous block, and the first contiguous block has neck.

Further, in the utility model preferred embodiment, the one end of the second contiguous block away from claw body is provided with Latch.

Further, in the utility model preferred embodiment, the axis direction in hole is parallel with the direction that latch is set.

Further, in the utility model preferred embodiment, the quantity at least two in hole, at least two holes are along claw Body opens up close to one end of latch to one end interval away from latch.

The utility model also proposes a kind of clamping device, and the clamping device includes chuck and above-mentioned axially position claw, Axially position claw is connected in chuck.

Further, in the utility model preferred embodiment, chuck offers chute, and axially position claw is slidably connected In chute.

The beneficial effect of axial locator card pawl is in the utility model embodiment：Pass through the first end in axially position claw Clamping face open up hole, and the Part I that is connected stretches out the positioning aid in hole, can conveniently realize the axial direction of workpiece Positioning function.By changing the size and installation site of positioning aid, the adjustment of position location can be more easily realized, so as to Meet different length, size workpiece locating and machining needs.After positioning aid is removed, axially position pawl then can be achieved normal With the function of claw.

Include the clamping device of above-mentioned axially position claw, structure is relatively simple, and processing and combination are easier to, and cost increases Add slightly, and can significantly subtract the axially position difficulty of workpiece, adaptability is stronger.

Brief description of the drawings

, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also To obtain other related accompanying drawings according to these accompanying drawings.

Fig. 1 is the structural representation for the clamping device that the utility model embodiment provides；

Fig. 2 is the structural representation for the chuck that the utility model embodiment provides；

Fig. 3 is the structural representation for the axially position claw that the utility model embodiment provides；

Fig. 4 is the structure under the confined state of the axially position claw that the utility model embodiment provides and positioning aid Schematic diagram；

Fig. 5 is the structural representation for the screw rod that the utility model embodiment provides；

Fig. 6 is the structural representation of the connecting portion for the axially position claw that the utility model embodiment provides；

The structural representation for the neck that Fig. 7 is formed by the connecting portion for the axially position claw that the utility model embodiment provides Figure.

Icon：10- clamping devices；100- chucks；110- through holes；120- chutes；200- axially position claws；210- claws Body；211- first ends；212- holes；The ends of 213- second；At the top of 215- claws；216- claws bottom；220- positioning aids； 221- screw rods；The threaded shanks of 222- first；The threaded shanks of 223- second；230- connecting portions；The contiguous blocks of 231- first；233- second is connected Block；235- necks；The necks of 236- first；The necks of 237- second；238- latches；241- Part I；The limited blocks of 242- first； The limited blocks of 243- second；245- Part II.

Embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described.Obviously, retouched The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and The component of the utility model embodiment shown can be configured to arrange and design with a variety of.

Therefore, the detailed description of the embodiment of the present utility model to providing in the accompanying drawings is not intended to limit requirement below The scope of the utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.

In description of the present utility model, it is necessary to explanation, term " on ", "left", "right", " vertical ", " interior ", " outer " Deng instruction orientation or position relationship be based on orientation shown in the drawings or position relationship, or the utility model product use When the orientation usually put or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or Imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that To limitation of the present utility model.In addition, term " first " and " second " are only used for distinguishing description, and it is not intended that instruction or dark Show relative importance.

In addition, the term such as term " vertical " is not offered as requiring part absolute upright, but can be slightly tilted.As " hung down Directly " only refer to that its direction is more vertical with respect to for " level ", be not to represent that the structure must be completely vertical, but can To be slightly tilted.

In description of the present utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in utility model.

It is specifically described with reference to embodiments.

Fig. 1 is refer to, the present embodiment provides a kind of clamping device 10, and it includes chuck 100 and axially position claw 200, Axially position claw 200 is connected in chuck 100.

Please with reference to Fig. 1 and Fig. 2, the core of chuck 100 offers through hole 110, is passed in and out for workpiece to be positioned.Chuck 100 offer chute 120, and optionally, chute 120 is laterally away from through hole 110 by chuck 100 close to the one of through hole 110 Opposite side extends, preferably, chute 120 can extend radially through chuck 100 along chuck 100.The then company of slip of axially position claw 200 It is connected to chute 120, and moving radially along chuck 100.Optionally, chuck 100 can for example include at least two axially Position claw 200, you can be arranged to two dog chucks, scroll chuck and chuck etc..Above-mentioned axially position claw 200 may be used also Applied to the other types of chuck 100 such as type hand chuck 100, hydraulic chuck 100 and air-driven type chuck 100.

It refer to Fig. 3, the axially position claw 200 in the present embodiment includes claw body 210 and positioning aid 220. Wherein, claw body 210 includes the relative end 213 of first end 211 and second.It is preferred that first end 211 for example can be close to chuck 100 through hole 110, the second end 213 then through hole 110 away from chuck 100, and the end 213 of first end 211 and second can for example be put down Row is set.

Because of the length of different workpiece to be positioned and of different sizes, the position of its axially position is also different, for energy simultaneously Enough axially positions met to different workpiece to be positioned, the first end 211 of above-mentioned claw body 210 offer hole 212.The hole 212 can for example be extended from first end 211 to the second end 213, and its development length is unlimited, can both run through the end of first end 211 and second 213, also can not through and form blind hole.

Because existing most of claws can not be bonded with the contact surface of workpiece to be machined, it is difficult to ensure by the main shaft of clamping body Baseline is in plumbness with machine direction, and the axle class higher to requirement on machining accuracy or cylinder have a great influence.In consideration of it, this The first end 211 of embodiment, which has, cries the face of eating, and the clamping face for example may be configured as the arc surface being bonded with workpiece surface to be positioned, In order to stabilize workpiece to be positioned, and its main shaft baseline is kept good plumbness with machine direction.Above-mentioned hole 212 then opens up In first end 211 and through the clamping face of first end 211.

Claw is positioned in the present embodiment also includes the claw top 215 vertical with the end 213 of first end 211 and second and claw Bottom 216, wherein claw bottom 216 are connected with chuck 100.It is preferred that hole 212 can be along between the short transverse of claw body 210 Separate and set, namely opened up along at the top of claw 215 towards the direction of claw bottom 216.Optionally, hole 212 opens up quantity extremely It is two less, such as can is 6.It is preferably to be arranged at intervals when the quantity in hole 212 is at least 2, between adjacent holes 212. Further, can be that equi-spaced apart is set between hole 212 and hole 212 when the quantity in hole 212 is 3 and more than 3, Can be that non-equidistant is arranged at intervals.It is preferred that first end 211 can open up multiple row hole 212, each column equidistantly offers multiple holes 212. In addition, optionally, the shape in hole 212 can targetedly be set according to positioning aid 220, for example, may be configured as it is circular, Square, triangle and polygon etc..

Fig. 4 is refer to, positioning aid 220 coordinates with hole 212.Positioning aid 220 includes Part I 241 and second Part 245, wherein Part I 241 are stretched out outside hole 212 when positioning aid 220 and hole 212 coordinate, and Part II 245 exists Positioning aid 220 is stretched into hole 212 when coordinating with hole 212.Specifically, it is spacing can for example to include first for Part I 241 The limited block 243 of block 242 and second, one end of the second limited block 243 is against clamping face, the remote clamping face of the second limited block 243 One end be connected with the first limited block 242.Part II 245 is close to one end of clamping face and the second limited block 243 against clamping One end connection in face.

In order to make positioning aid 220 have good positioning in hole 212, it is avoided to be positioned to workpiece to be positioned When be subjected to displacement, and relatively firm positioning can be realized to workpiece to be positioned, the present embodiment for example can be in the He of the first limited block 242 Second limited block 243 sets the first screw thread and the second screw thread respectively, and the first screw thread and the second screw thread can be along the extensions in hole 212 Direction set.It is preferred that (namely the one end of the first screw thread away from the first limited block 242 is to close to for the depth of the first screw thread The beeline of one end of one limited block 242) it is more than the depth of the second screw thread, it can avoid positioning aid 220 to undetermined During the workpiece positioning of position, because the gravity of workpiece to be positioned makes positioning aid 220 be subjected to displacement in hole 212.Optionally, Above-mentioned positioning aid 220 for example can be screw rod 221, and accordingly, hole 212 is then screwed hole, and screw rod 221 and hole 212 are removable Unload connection.

Fig. 5 is refer to, screw rod 221 includes the first threaded shank 222 and the second threaded shank 223, one end of the first threaded shank 222 It is connected with one end of the second threaded shank 223.The diameter of first threaded shank 222 is more than the diameter of the second threaded shank 223.In screw rod 221 with screwed hole when being connected, diameter and the screwed hole diameter matches of the second threaded shank 223, the second threaded shank 223 and screwed hole spiral shell Line connects, because the diameter of the first threaded shank 222 is more than the diameter of the second threaded shank 223, namely the diameter more than screwed hole, After screw rod 221 is connected with screwed hole, the first threaded shank 222 is then stuck in screwed hole close to the aperture of first end 211, so that Screw rod 221 keeps preferable stationary state, avoids it from being subjected to displacement.The section of screw rod 221 for example can be square and hexagonal Shape etc..In addition, above-mentioned screw rod 221 can also be replaced in the present embodiment with bolt.

To make the holding function of axially position claw 200 more perfect, to meet the needs of different type workpiece to be positioned, Optionally, Fig. 3 is continued referring to, the second end 213 for example may be configured as stepped, to be relatively large in diameter for installation work Part.The quantity of ladder could be arranged to 3 in the present embodiment, in addition, 1 also can be arranged to according to different processing situations, 2 It is individual or more than 3.Specifically, for example, can in workpiece fabrication to be positioned is clamped when first end 211, axially position claw 200 Half expose chuck 100 it is outer when, use the second end 213 instead and clamped, so that axially position claw 200 is in whole position fixing process At least the region of more than half is in chuck 100, to avoid in positioning or process, because applied external force crosses ambassador Axially position claw 200 departs from chuck 100, situations such as causing workpieces processing to be positioned to be scrapped.Secondly as the second end 213 is leaned on One end of nearly through hole 110 contacts with workpiece to be processed, and the power that Gu Qisuo is born is bigger, and the second end 213 away from through hole 110 one End with workpiece to be processed relatively far apart, one end of its closer through hole 110 of power born born it is smaller, therefore by the second end 213 are arranged to stepped, can meet locating and machining needs, and cost-effective.

It is preferred that the surface that the end 213 of first end 211 and second is used to clamp workpiece to be positioned can also set anti-Slipped Clove Hitch Structure, such as anti-slip veins, anti-slop serrations and slipmat etc., to increase the chucking power between workpiece and clamping face to be positioned.

It is slidably connected to easily facilitate the claw bottom 216 of axially position claw 200 with chuck 100, it is preferred that please join According to Fig. 6 and Fig. 7, above-mentioned axially position claw 200 also includes connecting portion 230, and one end of connecting portion 230 is connected to claw body 210 bottom, the other end are connected to chuck 100.

Specifically, Fig. 6 is continued referring to, connecting portion 230 can for example include the first contiguous block 231 and the second contiguous block 233.Wherein, one end of the first contiguous block 231 is connected to the bottom of claw body 210, namely claw bottom 216, the first connection The one end of block 231 away from claw body 210 is connected with the second contiguous block 233.Optionally, the first contiguous block 231 can along hang down Directly stretched out and in the second contiguous block towards the direction away from claw bottom 216 by claw bottom 216 in the direction of claw bottom 216 233 connections, the second contiguous block 233 then can be with the vertical connections of the first contiguous block 231, and the first contiguous block 231 has neck 235. It is preferred that continuing referring to Fig. 7, the first contiguous block 231 and the second contiguous block 233 are collectively forming the connection that section is "convex" shaped Portion 230, this structure can make the uniform stressed of the first contiguous block 231 or so, and be symmetry axis in its left and right two with the first contiguous block 231 Side forms two necks 235, i.e. the first neck 236 and the second neck 237 respectively.In addition, the first contiguous block 231 also can directly connect The edge of claw bottom 216 is connected to, now, the second contiguous block 233 and the first contiguous block 231 are collectively forming section as " L " shape Neck 235 is formed on connecting portion 230, the connecting portion 230 and claw bottom 216 of " L " shape.

In use, the second contiguous block 233 is slidably connected in the chute 120 of chuck 100, the edge of chute 120 then coordinates It is embedded in neck 235.

Because displacement of the claw body 210 in chute 120 and final position are required to control, Fig. 4 is continued referring to, The present embodiment is additionally provided with latch 238 in second one end of contiguous block 233 away from claw body 210.In addition, inside chuck 100 Gear is additionally provided with along its circumference, gear engages with latch 238, by the rotation of gear, drives claw body 210 close to through hole 110 or remote through holes 110.It is preferred that the side that the axis direction in the hole 212 in the present embodiment can for example be set with latch 238 To parallel.At least two holes 212 are spaced apart along claw body 210 close to one end of latch 238 to one end away from latch 238 If.

To sum up, the application method of above-mentioned clamping device 10 is as follows：Radial direction of the workpiece to be positioned along through hole 110 is vertical It is placed on chuck 100, and the second contiguous block 233 in connecting portion 230 is slidably connected in the chute 120 of chuck 100, chute 120 edge mate is embedded in neck 235, axially position claw 200 is connected with chuck 100.Then drive in chuck 100 The gear in portion, by the rotation of gear, make the teeth portion of gear and the second contiguous block 233 of the connecting portion 230 of axially position claw 200 The latch 238 of one end away from claw body 210 engages, and drive simultaneously be connected to the axially position claw 200 of chuck 100 to Moved close to the direction at the center of through hole 110, be bonded, realize with the surface of workpiece to be positioned so as to the clamping face of first end 211 It is spacing to workpiece to be positioned progress on the direction of workpiece radial direction to be positioned, workpiece to be positioned is kept vertical and avoid it Run-off the straight or other displacements.

According to the length of workpiece to be positioned, positioning aid 220 is connected to the hole 212 of first end 211 in position In, and its one end is stretched out outside hole 212, further to be positioned to it in the height and position needed for workpiece to be positioned, namely Workpiece to be positioned is positioned in the bottom of the height and position needed for workpiece to be positioned, avoids it from being axially positioned claw 200 Short transverse slid to claw bottom 216.

When needing that workpiece other positions to be positioned are processed or change other workpiece to be positioned, chuck 100 is driven Internal gear, by pinion rotation, drive and be connected to the axially position claw 200 of chuck 100 to away from the center of through hole 110 Direction is moved, so that the distance between multiple clamping faces of axially position claw 200 become big, can now be treated to larger-size Positioning workpiece or the larger position of workpiece size to be positioned are positioned.In the case, can be auxiliary by the positioning that need not be used Assistant piece 220 is removed, and the positioning aid 220 connected in the hole 212 of reservation or newly-increased appropriate location.

Therefore axially position claw 200 of the present utility model is in first end 211 by opening up hole 212, and with being filled with appropriate length The positioning aid 220 of degree and size, the axial positioning function of workpiece can be conveniently realized；And by changing positioning auxiliary The size and installation site of part 220, can more easily realize the adjustment of position location, so as to meet different length, size work The locating and machining of part needs；After positioning aid 220 is removed, the function of conventional claw then can be achieved in axially position pawl.Including There is the clamping device 10 of the axially position claw 200, structure is relatively simple, and processing and combination are easier to, and cost increase is slight, and And can significantly subtract the axially position difficulty of workpiece, adaptability is stronger.

Above example is the utility model part of the embodiment, rather than whole embodiments.Reality of the present utility model The detailed description for applying example is not intended to limit claimed the scope of the utility model, but is merely representative of of the present utility model Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made The every other embodiment obtained is put, belongs to the scope of the utility model protection.

Claims

A kind of 1. axially position claw, it is characterised in that including claw body, the claw body have relative first end and Second end, the first end have clamping face, and the first end is offered through the hole of the clamping face；

The axially position claw also include with the hole coordinate positioning aid, the positioning aid be included in it is described The Part I in the hole is stretched out in hole when coordinating.
2. axially position claw according to claim 1, it is characterised in that the Part I include the first limited block and Second limited block, one end of second limited block is against the clamping face, the remote clamping face of second limited block One end be connected with first limited block, the direction of extension of first limited block along the hole is provided with the first screw thread.
3. axially position claw according to claim 2, it is characterised in that the positioning aid is by being additionally included in and institute The Part II that the hole is stretched into when hole coordinates is stated, the Part II is spacing close to one end of the clamping face and described second Block connects against one end of the clamping face, and the direction of extension of the Part II along the hole is provided with the second screw thread.
4. axially position claw according to claim 1, it is characterised in that the hole is screwed hole, the positioning auxiliary Part is screw rod.
5. axially position claw according to claim 1, it is characterised in that also include including connecting portion, the connecting portion First contiguous block and the second contiguous block, one end of first contiguous block are connected to the bottom of the claw body, and described first The one end of contiguous block away from the claw body is connected with second contiguous block, and first contiguous block has neck.
6. axially position claw according to claim 5, it is characterised in that second contiguous block is away from the claw sheet One end of body is provided with latch.
7. axially position claw according to claim 6, it is characterised in that the axis direction in the hole is set with the latch The direction put is parallel.
8. axially position claw according to claim 6, it is characterised in that the quantity at least two in the hole, at least Two holes open up along the claw body close to one end of the latch to one end interval away from the latch.
9. a kind of clamping device, it is characterised in that including chuck and at least two axial directions as described in claim any one of 1-8 Claw is positioned, the axially position claw is connected in the chuck.
10. clamping device according to claim 9, it is characterised in that the chuck offers chute, the axially position Claw is slidably connected to the chute.