CN2623383Y - Improved speedy collet structure - Google Patents

Abstract

The utility model provides an improved speedy collet structure, wherein, a reset component comprises an actuating element, a fixing ring and an inner spring, and the displacement stoke terminal of the actuating element can be limited by the fixing ring and a limit snap ring; so, the actuation of the rest component is rather stable and can not be affected by the elastic fatigue of the spring as well as has better structure reliability; also, the moving out stroke of the actuating element of the reset component is limited by the limit snap ring and the port of the assembled groove of the utility model is provided with the limit snap ring, so the utility model has a simple structure and reliable actuation, when the toolhead is unlocked, the separate assembled parts can not be bounced out, which is practical to the safety of the operator and the operability.

Description

Quick chuck improves structure

Technical field

The utility model is to improve structure about a kind of quick chuck, is when having the locking of releasing appliance head in the quick chuck more specifically, tool heads can be ejected automatically the quick chuck resetting structure design that breaks away from inlay card.

Background technology

Present instrument industry, when the folder that carries out tool heads, drill bit etc. is established operation, usually can see through jaw member carries out, for example: see also (taking from U.S. Pat 6199872) shown in Figure 6, this be present instrument industrial circle quick chuck 60 structures widely used, it is made of component 61, outer sleeve 62, lock control pearl 63, outer spring 64, return unit 65, inner spring 66 and fixings 67; It is sliding clamped in the design of 62 of component 61 and outer sleeves to see through lock control pearl 63; In the operation, can will have the tool heads 70 of embedding neck 71 structures, the group that directly is inserted in component 61 is established in the groove 611, and when lock control pearl 63 sliding embedding control holes 612 and embedding neck 71, finishes folder and establish; And carry out relative slippage operation in outer sleeve 62 and component 61, and lock control pearl 63 is finished tool heads 70 and discharges operations when shifting out embedding neck 71; As previously mentioned, carrying out the folder locking and the release of tool heads 70, all finish, so industry is being called quick chuck directly to operate fast.

Wherein, in the aforementioned quick chuck structure,, be able to automatically tool heads 70 be deviate from inlay card for making quick chuck 60 when the tool heads 70 that carries out discharges operation; Therefore, establishing in the groove 611 in regular turn in component 61 its groups, group is provided with return unit 65, inner spring 66 and fixings 67; Wherein, this fixings 67 is that build-in is located at group and is established groove 611 bottoms, and with the inlay card head 671 of fixings 67 1 ends and inner spring 66 1 ends build-in mutually, inner spring 66 other ends then with 651 build-ins mutually that are nested of return unit 65 1 ends, this return unit 65 is seen through the inner spring 66 elastic slip operation that carries out in group is established groove 611, by this, when quick chuck 60 carries out the release operation of tool heads 70, tool heads 70 must be thought the elasticity passing of return unit 65 and inner spring 66, and automatically break away from locking, and tool heads 70 ejection groups are established groove 611;

Tool heads when it should be noted that its releasing locking of aforementioned quick chuck is deviate from resetting structure automatically, in actual use, all has following defective:

One, the two ends of inner spring are to be embedded mutually with return unit and fixings respectively, in return unit carries out the process of displacement, are to see through inner spring self length fully, as the displacement terminal travel limits of return unit; So, the displacement stroke of this return unit is correct at the use initial stage, but after use after a while, this inner spring can directly be subjected to the effect of elastic fatigue, the displacement stroke of return unit is changed, and influence the proper operation of quick chuck, and for example: when the return unit displacement stroke exceeds the lock control pearl, then correctly start of quick chuck;

Its two, when the locking of quick chuck releasing appliance head, and see through cooperating of inner spring and return unit, make tool heads automatically break away from At time of eject, this tool heads is established groove through directly ejection group of regular meeting; For the operator, must quite be careful the ejection of tool heads, otherwise tool heads meeting ejection out of control; Directly influence operator's safety.

Based on above-mentioned shortcoming, the structural design of aforementioned quick chuck can't meet the actual demand of industrial circle, and improved necessity is in addition arranged further; Therefore, the inventor is by to structural design of the present utility model, the displacement stroke of return unit is maintained fixed, and the ejection of tool heads is effectively limited, make tool heads break away from locking automatically but not excessively ejection group establish groove, then realistic demand.

Summary of the invention

Main goal of the invention of the present utility model is to be to provide a kind of quick chuck to improve structure, it constitutes reset assembly by actuator, retainer ring and inner spring, and the displacement stroke terminal of actuator, be to limit through retainer ring and spacing clasp, therefore move quite stable, be not subjected to that spring force is tired to be influenced, structural reliability is preferable.

Another goal of the invention of the present utility model is to be to provide a kind of quick chuck to improve structure, the restriction that stroke is subjected to spacing clasp of shifting out owing to its actuator of reset assembly, and establish the groove port in group and be equipped with the restriction clasp, so tool heads can not eject the disengaging component when releasing is sealed; For operator's handling safety and controllability, more realistic demand.

For reaching above-mentioned purpose, the utility model adopts at reset assembly and sees through actuator, retainer ring and inner spring formation, limit by retainer ring and spacing clasp, make the displacement start of actuator not be subjected to accurately, that spring force is weak to be influenced, establishing the groove port in group is equipped with the restriction clasp in addition, tool heads can not eject the disengaging component when releasing is sealed.

Description of drawings

Fig. 1 is the three-dimensional exploded view that the utility model quick chuck improves structure;

Fig. 2 be the utility model quick chuck improve structure in conjunction with cutaway view;

Fig. 3 is that the utility model quick chuck improves structure chuck locked state cutaway view;

Fig. 4 is that the utility model quick chuck improves structure chuck releasing locked state cutaway view;

Fig. 5 is that the utility model quick chuck improves another enforcement state partial perspective view of structure;

Fig. 6 is a prior art quick chuck structure cutaway view.

The symbol simple declaration

(10) component (11) group is established groove (121) (122) ring caulking groove

(13) edge is placed restrictions in restriction clasp (14) control hole (15)

(16) the outer caulking groove of connecting portion (17) (171) perforation

(18) place restrictions on clasp (181) card protruding (19) terminal clasp

(20) lock control pearl (30) outer spring (31) is placed restrictions on clasp

(40) throwout sleeve (41) trepanning (42) card fin

(50) reset assembly (51) actuator (511) pushing and pressing end

(512) slippage bar (52) retainer ring (53) inner spring

(54) spacing clasp (60) quick chuck (61) component

(611) group is established groove (612) control hole (62) outer sleeve

(63) lock control pearl (64) outer spring (65) return unit

(651) head (66) inner spring (67) fixings that is nested

(671) inlay card head (70) tool heads (71) embedding neck

(80) magnetic part

The specific embodiment

For energy more detailed description technical pattern feature of the present utility model, be described as follows with reference to the accompanying drawings:

At first, see also Fig. 1, shown in Figure 2, will be from accompanying drawing to find out that the utility model is made of a component 10, a lock control pearl 20, an outer spring 30, a throwout sleeve 40 and a reset assembly 50, wherein:

This component 10, form in it the group establish groove 11 (group establish groove slotted eye kenel visual tool head kenel and decide, for example: be the hexagon slotted eye in present embodiment), establish inside and outside can respectively being arranged with of groove 11 open end side in group and form ring caulking groove 121,122, it can supply a restriction clasp 13 and terminal clasp 19 (can be the c type buckles) to be embedded at group and establish groove 11 ports; Component 10 outsides are then established groove 11 with a control hole 14 and group and are worn mutually, and make control hole 14 it establishes the end that groove 11 is connected with group, form with the shrinkage cavity kenel and place restrictions on edge 15; In addition, component 10 one ends may be molded to connecting portion 16 (as the hexagon bar), can be for linking with predetermined member (as: instrument is held bright, electric tool chuck etc.);

This lock control pearl 20 is sliding control holes 14 that are embedded at component 10, and is placed restrictions on by placing restrictions on edge 15, exposes to organize and establishes in the groove 11 and be able to part with lock control pearl 20;

This outer spring 30 is sheathed on component 10 outsides, and establishes one in component 10 outer ends and place restrictions on clasp 31 and place restrictions on as the displacement of outer elastic tube 30 1 ends;

This throwout sleeve 40 runs through two ends with trepanning 41, and in the protruding card fin 42 that forms of trepanning 41 inwall rings; Throwout sleeve 40 is to be sheathed on component 10 outsides with trepanning 41; Wherein, these card fin 42 1 ends and outer spring 30 ends offset and close, and in addition end is then established clasp with a group of component 10 outer ends and formed slippage and place restrictions on;

This reset assembly 50 is to include actuator 51, retainer ring 52 and inner spring 53, and wherein these actuator 51 1 ends are shaped to pushing and pressing end 511, and the other end then class contracts and is provided with a slippage bar 512; Actuator 51 is to wear retainer ring 52, and shifts out placing restrictions on of retainer ring 52 with a spacing clasp 54 as slippage bar 512; This reset assembly 50 is equipped on component 10 its groups and establishes in the groove 11, make retainer ring 52 be fixedly arranged on the group establish in the groove 11, and with inner spring 53 be equipped on the group establish between groove 11 and slippage bar 512 ends;

In view of the above, when carrying out the folder lock operation of tool heads 70, tool heads 70 can be provided with an end of embedding neck 71, the group that directly is inserted in component 10 is established in the groove 11 (as shown in Figure 2), and it is lasting mobile to make tool heads 70 continue reciprocal hyte part 50 directions, when the embedding neck 71 of tool heads 70 is positioned at lock control pearl 20 corresponding sections, lock control pearl 20 can slippage be positioned at control hole 14 and embedding neck 71, and throwout sleeve 40 its card fins 42 are distolateral because of not being subjected to the interference of lock control pearl 20, and be subjected to the elastic force effect of outer spring 30 and be able to slippage, and the locked state (as shown in Figure 3) of formation chuck, this moment, inner spring 53 was in compressive state;

Again, when desiring to carry out the lock releasing operation of chuck, the operator can directly draw throwout sleeve 40 to move toward connecting portion 16 directions and reset, when throwout sleeve 40 its card fin 42 end faces shift out 20 interference of lock control pearl, tool heads 70 can be subjected to the elastic thrust effect of inner spring 53, side shifting can force lock control pearl 20 to shift out embedding neck 71 in its process outward, removes locked state (as shown in Figure 4) and form to reset; It should be noted that when tool heads 70 shifts out, be restricted the frictional limited of clasp 13, can't wholely shift out group and establish groove 11, establish groove 11 and be maintained to be positioned to organize;

Should understand through above explanation, the utlity model has traditional quick chuck the characteristic that can't have:

One, the utility model reset assembly 50 are to see through actuator 51, retainer ring 52 and inner spring 53 to constitute, wherein the displacement stroke terminal of this actuator 51, be to limit through retainer ring 52 and spacing clasp 54, irrelevant with spring, so the start quite stable, be not subjected to that spring force is tired to be influenced; Structurally, the possibility that reset assembly 50 no ejection groups are established groove 11, reliability is preferable;

Its two since reset assembly 50 its actuators 51 shift out the restriction that stroke is subjected to spacing clasp 54, and the utility model establishes groove 11 ports in group especially and is equipped with restriction clasp 13, therefore, tool heads 70 is being removed when sealed, can not eject to break away from component 10; The handling safety and the controllability that more help the operator.

On the other hand, for making tool heads 70 when releasing is sealed, unlikely ejection component 10, except seeing through restriction clasp 13 as the restriction, wherein can on the end face of actuator 51 its pushing and pressing ends 511, be embedded a magnetic part 80, be beneficial to quick chuck and remove when sealed, can see through magnetic part 80 magnetic tool heads 70; Having can it establishes caulking groove 17 outside in the openend outside that group is established groove 11 at component 10 again, making outer caulking groove 17 parts establish groove 11 with group is communicated with, or see through perforation 171 and establish groove with group and be communicated with, what it can see through a tool card protruding 181 places restrictions on clasp 18, ring is located at outer caulking groove 17, and with expose be positioned at the group establish groove 11 protruding 181 (as shown in Figure 5) of card, place restrictions on as the ejection of tool heads 70.

In sum, owing to operate when implementing, use actuator, retainer ring and inner spring and constitute reset assembly, and make the displacement stroke terminal of actuator, can limit through retainer ring and spacing clasp; Therefore, the start quite stable of reset components can not be subjected to the tired influence of spring force, and structural reliability is preferable; Moreover, since its actuator of reset assembly shift out the restriction that stroke is subjected to spacing clasp, and the utility model establishes the groove port in group especially and is equipped with the restriction clasp, therefore, tool heads can not eject the disengaging component removing when sealed, is more conducive to the operator.By as above structural design, the inventor has reached goal of the invention of the present utility model.

Claims (3)

1. a quick chuck improves structure, and it mainly is made of a component, a lock control pearl, an outer spring, a throwout sleeve and a reset assembly, and wherein, its outside of this component is established groove with a control hole with the group in it and worn mutually; The lock control pearl is sliding being embedded in the control hole of component, and lock control pearl part can be exposed to group and establishes in the groove; This outer spring is sheathed on the component outside, and places restrictions on clasp as placing restrictions on one; Throwout sleeve forms the card fin in its trepanning inwall, and throwout sleeve is sheathed on the component outside with trepanning, and card fin and outer spring offset and close, and establishes clasp formation slippage with the group of component outer end and place restrictions on; It is characterized in that: this reset assembly, constituted by actuator, retainer ring and inner spring, wherein this actuator one end is shaped to pushing and pressing ends, holds then class to contract in addition and is made as a slippage bar; Actuator wore retainer ring, and shifted out placing restrictions on of retainer ring with a spacing clasp as the slippage bar; This reset assembly is to be equipped on its group of component to establish in the groove, and make retainer ring be fixedly arranged on the group establish in the groove, and with inner spring be equipped on the group establish between groove and the slippage boom end.

2. quick chuck as claimed in claim 1 improves structure, it is characterized in that: be embedded a magnetic part on the end face of its pushing and pressing end of actuator.

3. quick chuck as claimed in claim 1 improves structure, it is characterized in that: it establishes caulking groove outside in the openend outside that group is established groove component, makes that outer caulking groove is local to be established groove with group and be communicated with, can through a tool card protruding place restrictions on clasp, ring is located at outer caulking groove, and exposes and be positioned at group to establish the card of groove protruding.

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