CN201094999Y

CN201094999Y - Clamp construction of automatic lathe

Info

Publication number: CN201094999Y
Application number: CNU200720150308XU
Authority: CN
Inventors: 周生智
Original assignee: TAIWAN GANGDELIN CO Ltd
Current assignee: GMT GLOBAL INC.
Priority date: 2007-06-07
Filing date: 2007-06-07
Publication date: 2008-08-06
Anticipated expiration: 2017-06-07

Abstract

The utility model relates to a clamp structure of an automatic lathe, which comprises a handpiece connecting block, a chuck block, a chuck, a slanted ejecting block, a plurality of clamping pieces and a compression cap. The chuck block and the chuck are arranged coaxially; the slanted ejecting block that can slide forward or backward is arranged in the space between the chuck block and the chuck; the clamping pieces are arranged in a radiating shape in the front of the chuck; the external side of the chuck corresponds to the oblique surface in the front the slanted ejecting block and can do the reciprocating movement in the direction vertical to the axes; the compression cap, the slanted ejecting block, the clamping pieces and other parts are covered and arranged in the chuck block so as to form an integrative body; the slanted ejecting block and the clamping pieces are respectively provided with restoring components in the direction of movement so as to respectively form the maintaining force for the slanted ejecting block to push forward and the maintaining force for each clamping piece to expand outward. Therefore, the clamping pieces have larger clamping opening zooming volume; the slanted ejecting block can be adjusted to tighten or loosen the clamping pieces so as to control the diameter of the clamping opening.

Description

The anchor clamps structure of automatic lathe

Technical field

The utility model relates to the automatic lathe structure, is meant a kind of anchor clamps structure of automatic lathe especially.

Background technology

The anchor clamps structure of general automatic lathe roughly is divided into mechanical type and two kinds of empty, hydraulic types, though wherein the mechanical clips rotating speed is unrestricted, the folding degree is big, can't automation, and the function of forfeiture automation; Empty, hydraulic type anchor clamps be cooperated at a chuck or mechanical arm, the driving of oil pressure brake, reach full-automatic feeding and processing purpose.But existing sky, hydraulic type anchor clamps are to cut the axial joint-cutting in several roads at a conical tube front end, make its front end have several jaws structure, utilize a taper to push forward and reach the purpose of clamping, allow folder mouthful open naturally otherwise then can loosen anchor clamps; Cause described existing anchor clamps the folder mouth open or the clamping amount is to depend at the elasticity of jaw material itself and the width of joint-cutting, it can only inwardly press from both sides and can't expand outwardly according to former folder mouthful size, so its folding amount that can reach only has the scope between 2～4mm approximately, and have the folding degree too little, awkward problem; Moreover, utilize the structure of the mode clamping work pieces of empty, oil pressure actuated, because it has rotating element between empty, oil pressure brake and chuck, so own rotating speed restriction and needing to be unfavorable for the problem of High-speed machining on frame for movement.

In addition, described existing sky, oil pressure anchor clamps structure is easy to exceed the folding amount of single anchor clamps to the material in collinear footpath not, thus often need to change the anchor clamps of different size, and increase the inconvenience on using; Secondly, to be shaped as the diameter of bare terminal end bigger when running into a kind of workpiece material, during the less situation of the diameter of processing end, then is difficult to the mode feeding with self-feeding, and the forfeiture function and the purpose of processing automatically; So a kind ofly is convenient to operation control, and the research and development of the big anchor clamps structure of the folding amount of its folder mouthful, its necessity and development space are arranged in fact.

This case utility model designer is because the anchor clamps structure of above-mentioned existing automatic lathe, wherein: mechanical generally is by manually-operated, can't automatic job, the folding amount that rotating speed restriction and folder mouthful are then arranged of empty, hydraulic type is little, easily causes the actual difficulty in man-hour and the shortcoming of inconvenience of adding; The whence studies intensively, and the long-pending individual use and research experience for many years of being engaged in this product, and a kind of brand-new " the anchor clamps structure of automatic lathe " designed in research and development finally.

Summary of the invention

The utility model main purpose is providing a kind of anchor clamps structure of automatic lathe, it can have bigger folder mouth folding amount (more than the 10mm), and can increase the ability of seizing the special shape workpiece on both sides by the arms, with the different work of changing grip size that can reduce, reach the effect of convenient use and time and labour saving because of the workpiece material size.

The utility model time purpose there is no rotating element in that a kind of anchor clamps structure of automatic lathe is provided in its structure, and no rotating speed restriction can be fit to various speed car systems or boring processing.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of anchor clamps structure of automatic lathe comprises a head joining base, a base of the carrier head, a chuck, an oblique push block, several intermediate plates and a pressure cap, is by a described head joining base other parts to be assembled on the head of automatic lathe to use; It is characterized in that:

Described base of the carrier head is with coaxial setting with chuck, and be provided with in the space between described base of the carrier head and chuck one can before and after the oblique push block that slides, be folded with several intermediate plates at the chuck front end with radial arrangement in addition, described intermediate plate lateral surface is corresponding with the inclined plane in the oblique push block front end, can be along moving back and forth perpendicular to axis direction, described pressure cap covers parts such as chuck, oblique push block and intermediate plate to be assembled in and is combined into one in the base of the carrier head; And,

Oblique push block and intermediate plate respectively are provided with the answer element along its moving direction, make oblique push block have the maintenance energy of ejection forward respectively, have the maintenance energy that expands outwardly with each intermediate plate.

When using according to combinations thereof, advantage of the present utility model:

1. revolution is unrestricted: sky, oil pressure clamping mode that general self-gripping jaws is adopted, because rotating element is arranged, rotating speed is restricted; The utility model is got rid of rotating element fully, so rotating speed is unrestricted, main shaft can change how soon how soon anchor clamps just can change.

2. the folding stroke is big: general empty, oil pressure jaw, because the restriction of structure, the folding degree is all little＜can not surpass 4mm at most 〉, when the workpiece external diameter section of having differs from, will encounter problems as big end plug must be gone into chuck the time; Chuck folding stroke of the present utility model is up between 10mm～20mm, and the cooperative mechanical arm can full automation.

3. thin part is indeformable: this chuck has anti-pinch distortion function, need not take care the power of seizing on both sides by the arms and cause workpiece deformation too greatly when processing light wall pipe spare, does not also worry seizing on both sides by the arms the power deficiency, and workpiece flies out in the processing.

4. it is multiple that chuck opens mode: general self-gripping jaws folding mode is not that the pneumatics mode is exactly the oil pressure mode; Chuck of the present utility model uses spring to clamp, and the mode of opening can be complied with actual board situation design＜pneumatics, oil pressure, machinery, electromagnetic type ... etc.

5. full-automatic: though the mechanical type jaw has the unrestricted and big advantage of folding degree of revolution, the loading and unloading people must manually be reloaded, and can't reach unmanned purpose on a large amount of production; Though and empty, Oil-pressure clamping head can be reached unmanned purpose, but the service condition restriction is many, the chuck folding degree of high revolution is all very little, and the big chuck of folding degree can't reach the requirement of high revolution, really fish and bear's paw can not get both, and chuck of the present utility model then can merge the advantage of above two kinds of chucks fully.

Description of drawings

Fig. 1 is the three-dimensional exploded view of an embodiment of the present utility model;

Fig. 2 is a folder of the present utility model mouthful open combination section;

Fig. 3 is a folder of the present utility model mouthful closed combination section.

Description of reference numerals: 10-head joining base; The 20-base of the carrier head; The 30-chuck; The 40-oblique push block; The 50-intermediate plate; The 60-pressure cap; The 80-bolt; The 11-combined hole; The 12-screw; 13,232-perforation; The 21-grooving; The 22-perforation; The 23-stop block; The 31-joint-cutting; The 32-fixed head; The 33-circular groove; The 41-inclined plane; The 42-floor; The 43-ring body; The 44-guide rod; The 51-spring base; The 52-guide groove; The 53-retainer ring; The 61-combined hole; 71,72-replys element; The 231-flange.

The specific embodiment

See also Fig. 1 to shown in Figure 3, the anchor clamps structure of the utility model automatic lathe, mainly be by a head joining base 10, one base of the carrier head 20, one chuck 30, one oblique push block 40, several intermediate plates 50 and a pressure cap 60 are formed, be to use by adopting described head joining base 10 that other parts are assembled on the head of automatic lathe, it is characterized in that: base of the carrier head 20 is with coaxial setting with chuck 30, and be provided with in the space between described base of the carrier head 20 and chuck 30 one can before and after the oblique push block 40 that slides, be folded with several intermediate plates 50 at chuck 30 front ends with radial arrangement in addition, described intermediate plate 50 lateral surfaces are corresponding with the inclined plane 41 in oblique push block 40 front ends, can be along moving back and forth perpendicular to axis direction, at last with a pressure cap 60 with chuck 30, oblique push block 40 covers to be assembled in the base of the carrier head 20 with intermediate plate 50 parts such as grade and is combined into one; And oblique push block 40 wherein respectively is provided with along its moving direction with intermediate plate 50 and

replys element

71,72, makes oblique push block 40 have the maintenance energy of ejection forward respectively, has the maintenance energy that expands outwardly with each intermediate plate 50.

When using according to above-mentioned tectonic association, when oblique push block 40 being pulled back with a mechanical arm, each intermediate plate 50 breaks away from the compressing on the inclined plane 41 in oblique push block 40 front ends, and can it be expanded outwardly by the strength that adopts its set answer element 72, reaches the purpose of opening the folder mouth automatically; Otherwise, when discharging oblique push block 40 behind the pulling force of backward shift, described oblique push block 40 will be pushed ahead automatically by the strength that adopts its set answer element 71, and utilize the effect on itself and intermediate plate 50 corresponding inclined planes 41, move in the axle center can oppress each intermediate plate 50, reach the effect of auto-closing folder mouth.Again, the folding amount of the folder mouth that is formed by several intermediate plates 50 in the utility model is the amount of movement that depends at described intermediate plate 50, and the impulse stroke of set answer element 72, causes to have bigger folding amount by existing structure; And in overall structure no any rotating member, so structure of the present utility model there is no the restriction of rotating speed, reach the desired purpose of the utility model.

As above-mentioned structure, please consult again shown in the 1st to the 3rd the embodiment, its in the present embodiment:

Described head joining base 10 is to be circular, is equipped with one group of combined hole 11 and one group of screw 12 on its plate body at least; It can lock it on the head of lathe by adopting the bolt (not shown) to pass combined hole 11 on the one hand, on the other hand by adopting screw 12 to combine fixing with base of the carrier head 20.

Described base of the carrier head 20 is cylindrical, equidistantly be provided with several groovings 21 at its front end, and on the barrel between per two groovings 21, be provided with one with the perforation 22 of axis parallel, described perforation 22 is also corresponding with the screw 12 on the head joining base 10, be installed with a ring-type stop block 23 in a described base of the carrier head 20 bottoms (rear end) in addition, described stop block 23 has a flange 231 therebetween;

Described chuck 30 is to be the little tapered tubular in the big rear end of front end, be arranged in the base of the carrier head 20 with stop block 23 on flange 231 offset, equidistantly be provided with several joint-cutting 31 at its front end, and be provided with a fixed head 32 in its back-end the body;

Described oblique push block 40 is in a tubular form, be set between base of the carrier head 20 and the chuck 30 in the formed space, and be provided with several answer elements 71 bottom it and between the thrust block 23 of base of the carrier head 20, make described oblique push block 40 have the maintenance energy of ejection forward, and has an inclined plane 41 that tilts from inside to outside in its front end inside, the front end outer side surface vertically outwards is provided with the grooving 21 of several floor 42 correspondences on base of the carrier head 20, and is connected with a ring body 43 at described floor 42 outboard ends;

Several intermediate plates 50 are tabulars, be separately positioned in the joint-cutting 31 of chuck 30 and form annular arrangement, fixed head 32 in its bottom surface and the chuck 30 contacts, and is provided with an answer element 72 between each intermediate plate 50 and chuck 30, makes described intermediate plate have the maintenance energy that expands outwardly;

Described pressure cap 60 is in the form of a ring, is being equipped with several perforation 22 of combined hole 61 correspondences on base of the carrier head 20 on its plate body, wear closing cap at base of the carrier head 20 front ends by adopting bolt 80, and its bottom surface contacts with the end face of intermediate plate 50 just.

Behind above-mentioned tectonic association, a described oblique push block 40 can then be moved to pusher by the ring body 43 in its outside, at this moment, the inclined plane 41 of oblique push block 40 is retreating the real effect of loosening compressing intermediate plate 50 that has, and intermediate plate 50 can pass through the strength of employing answer element 72 with its past extrapolation, reaches and opens several intermediate plate 50 formed purposes (as shown in Figure 2) of pressing from both sides mouth automatically; Otherwise, after the strength with oblique push block 40 post-tensionings discharges (releasing), the strength of described oblique push block 40 and answer element 71 that can be by adopting its rear end is to reach, and then make its inclined plane 41 oppress each intermediate plate 50 simultaneously inwardly to contract, reach and dwindle folder automatically mouthful to clamp the purpose (as shown in Figure 3) of workpiece.Again, wherein each intermediate plate 50 is the individual part of separating with chuck 30, so its activity is big and easily laborsaving.

Moreover the above-mentioned answer element 71 that is located at oblique push block 40 rear ends is a pressure-proof spring when this enforcement, and is engaged on the tube wall of oblique push block 40 rear ends and is equipped with several guide rods 44, is set in outside each guide rod 44 and described answer element 71 is pressure-proof springs; In addition respectively on the stop block 23 of base of the carrier head 20 rear ends, with on the body of head joining base 10, each correspondence be provided with one group of

perforation

232 and 13; According to and, when oblique push block 40 moves forward and backward, but the

perforation

232,13 of 44 free shuttling of guide rod on stop block 23 and head joining base 10 and can be kept the polarization of spring.With, the above-mentioned answer element 72 that is located between intermediate plate 50 and the chuck 30 is a pressure-proof spring when this enforcement, and be engaged on the joint-cutting 31 of chuck 30 front ends and respectively be provided with a circular groove 33 perpendicular to the axle center, and on the body of each intermediate plate 50, be provided with a spring base 51 perpendicular to the axle center, 72 of described answer elements are to be set on the spring base 51 of intermediate plate 50, are inserted in the circular groove 33 on its grooving 31 by chuck 30 lateral surfaces in the lump with intermediate plate 50 again; According to and, can make each intermediate plate 50 reach the effect that supports flexibly or shrink.

In addition, intermediate plate 50 of the present utility model also can be provided with a guide groove 52 perpendicular to the axle center at its front end, and be located on each guide groove 52 with a retainer ring 53 frames when implementing; According to and, can be easy to firm each intermediate plate 50 so that assembling with use.

More than explanation is just illustrative for the utility model, and it is nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited, can make many modifications, variation or equivalence, but but all will fall within the claim restricted portion of the present utility model.

Claims

1. the anchor clamps of automatic lathe structure comprises a head joining base, a base of the carrier head, a chuck, an oblique push block, several intermediate plates and a pressure cap, is by a described head joining base other parts to be assembled on the head of automatic lathe to use; It is characterized in that:

2. the anchor clamps of automatic lathe according to claim 1 are constructed, and it is characterized in that: described head joining base is to be circular, is equipped with one group of combined hole and one group of screw on its plate body at least.

3. the anchor clamps of automatic lathe according to claim 1 are constructed, it is characterized in that: base of the carrier head is cylindrical, equidistantly be provided with several groovings at its front end, on the barrel between per two groovings, be provided with one with the perforation of axis parallel, described perforation is also corresponding with the screw on the head joining base, be installed with a ring-type stop block in described base of the carrier head bottom in addition, described stop block has a flange therebetween;

Chuck is to be the little tapered tubular in the big rear end of front end, be arranged in the base of the carrier head with stop block on flange offset, equidistantly be provided with several joint-cutting at its front end, be provided with a fixed head in the body in its back-end;

Oblique push block is in a tubular form, be set between base of the carrier head and the chuck in the formed space, and be provided with several answer elements bottom it and between the thrust block of base of the carrier head, make described oblique push block have the maintenance energy of ejection forward, and has an inclined plane that tilts from inside to outside in its front end inside, the front end outer side surface vertically outwards is provided with the grooving of several floor correspondences on base of the carrier head, and is connected with a ring body at described floor outboard end;

Several intermediate plates are tabulars, are separately positioned in the joint-cutting of chuck and form annular arrangement, and its bottom surface contacts with fixed head in the chuck, and are provided with one reply element between each intermediate plate and chuck, make described intermediate plate have the maintenance energy that expands outwardly;

Pressure cap is in the form of a ring, is equipped with several perforation of combined hole correspondence on base of the carrier head on its plate body, wear closing cap at the base of the carrier head front end by adopting bolt, and its bottom surface contacts with the end face of intermediate plate.

4. the anchor clamps of automatic lathe according to claim 3 are constructed, it is characterized in that: the answer element that is located at the oblique push block rear end is a pressure-proof spring, and on the tube wall of oblique push block rear end, be equipped with several guide rods, and being a pressure-proof spring, described answer element is set in outside each guide rod; In addition respectively on the stop block of base of the carrier head rear end, with on the body of head joining base, each correspondence be provided with one group of perforation.

5. the anchor clamps of automatic lathe according to claim 3 are constructed, it is characterized in that: the answer element that is located between intermediate plate and the chuck is a pressure-proof spring, and on the joint-cutting of chuck front end, respectively be provided with a circular groove perpendicular to the axle center, and on the body of each intermediate plate, be provided with a spring base perpendicular to the axle center, described answer element then is to be set on the spring base of intermediate plate, is inserted in the circular groove on its grooving by the chuck lateral surface in the lump with intermediate plate.