CN2673563Y

CN2673563Y - Main shaft locking tool withdraw mechanism

Info

Publication number: CN2673563Y
Application number: CN 200320122683
Authority: CN
Inventors: 萧如崧
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-19
Filing date: 2003-12-19
Publication date: 2005-01-26
Anticipated expiration: 2013-12-19

Abstract

The utility model relates to a central shaft locking tool withdraw mechanism, comprising a central shaft, a shaft driving rod, a restoring piece, an inner liner shaft sleeve, a lock pushing-block, an elastic collet chuck, an interlock shaft sleeve and a collet chuck shaft sleeve. Wherein, the shaft driving rod is passed through and sheathed with the restoring piece and the inner liner shaft sleeve, and one end of the shaft driving rod is positioned in the central shaft inner edge after the end of the shaft driving rod is fixedly locked the lock pushing-block; the central shaft is sheathed between the inner liner shaft sleeve and the lock pushing-block by a plurality lock rods and positioning rods. Furthermore, one end of the positioning rods is simultaneously clamped and sheathed at the inner edge of the interlock shaft sleeve of the central shaft peripheral edge, and make the displacement of the interlock shaft sleeve and the shaft driving rod interlock each other. One end of the interlock shaft sleeve is connected with the collet chuck shaft sleeve which are locked each other, and makes the collet chuck shaft sleeve cover at the end of the central shaft; matched with the inner cone in inner wall of the central shaft; the interlock shaft sleeve makes the elastic collet chuck positioned at the end of the central shaft present a forced pressing and holding status, and serves to clamp the cutters. The utility model has the advantages of that the operation of the cutter in withdrawing, tool-change and locking tool aspect is at a heat, and the process saves the time and labor and do not by the help of the spanner tools.

Description

Lock spindle, retraction mechanism

Technical field

The utility model relates to a kind of technical field of tool changing axle, particularly a kind of lock spindle, retraction mechanism that is applicable to manual rapid changing knife.

Background technology

By prior art as can be known, cutting element machines such as general boring or milling cutter, the hyperphoric operation of its cutter has manual or automatic two kinds, wherein, with manual tool changing, because when cutter is fixed on the cutter shaft of toolroom machine, mostly utilize one " knife bar " reducing sleeve to be located on the cutter shaft, as shown in Figure 1, an end of general knife bar and cutter shaft socket is outer tapering, and the other end utilizes " lock solid structure " interlocking cutter again, yet when this knife bar is sheathed on the cutter shaft of toolroom machine, though after knife bar and the cutter shaft socket, the precision of its " concentric shafts " can reach the standard value of tolerance, when cutter is locked on this knife bar, it is many that " concentric shafts " precision of this cutter and cutter shaft just can the value of being above standard, so, just directly influence the precision of machining, secondly, when cutter is locked on the knife bar, after must utilizing " Wrench " that its " lock solid structure " unclamped again, can change cutter, and cause the inconvenience on the cutter changing; In addition, though also have the part toolroom machine can make the direct sheathed cutter of cutter shaft, yet the substitute mode of its cutter also must see through Wrench and pull to get loose and just can carry out, and more increase inconvenience on the efficient directly changing cutter on the toolroom machine.

Summary of the invention

In view of this, the inventor is in line with the research and development of being engaged in relevant industries for many years and manufacturing experience, manually replacing with the shortcoming that is faced at above-mentioned existing cutter commonly used deeply inquires into, and comply with above-mentioned demand and actively seek solution, study and study through long-term endeavour ground, successfully develop the utility model.So the purpose of this utility model is in order to overcome the defective of prior art, a kind of lock spindle, retraction mechanism to be provided.

The purpose of this utility model realizes by following technical proposals: a kind of lock spindle, retraction mechanism is characterized in that this mechanism includes:

One axis, this axis inner edge hollow, be built-in with one wear a return unit and a liner axle sleeve the axle moving bar, this moving bar one end lock is provided with a lock-pushing rod, the suitable place of this liner axle sleeve outer rim offers a circular groove, the suitable place of this lock-pushing rod outer rim five equilibrium has provided some locating holes, this axis is to should circular groove and this locating hole place, be formed with the some lockholes and the slotted hole that are communicated with its inner rim, spiral shell is provided with some locking bars in this lockhole, this slotted hole is built-in with shaft-like reference column, and this locking bar and reference column are arranged in this circular groove and locating hole place respectively, is used to limit this liner axle sleeve and lock-pushing rod;

One interlock axle sleeve, it is sheathed on the outer rim place that this axis is inserted for this reference column, the one end convexes with the section of being spirally connected with collet chuck axle sleeve screw lock, the suitable place of inner edge offers an inner groove, can utilize the limited block of an end edge portion tool scalene cone to lock from the other end of this lock-pushing rod, the other end by this this reference column of scalene cone ejection is arranged in this inner groove place, in order to locate this interlock axle sleeve;

One elastic collet chuck in order to the clamping cutter, it places in this shaft end, the outer edge surface of these elastic collet chuck two ends forms the one first outer tapering and the second outer tapering respectively, the internal face that this axis installs for this elastic collet chuck then forms corresponding interior tapering, thereby make this elastic collet chuck be packing, clamp position, in order to the clamping cutter;

One collet chuck axle sleeve, it is sheathed on this elastic collet chuck outside, and the one end is locked with this couple axle interplanting and is established binding, and other end inner edge then forms starting taper face that should the elastic collet chuck second outer tapering;

Wherein, this moving bar drives the stroke distances of this collet chuck axle sleeve displacement, is to depend on that this reference column is positioned at the distance of this slotted hole internal shift.

Positive progressive effect of the present utility model is: according to structure of the present utility model, when this moving bar is accepted tool changing instruction and during to bottom offset, can compress this return unit and see through this interlock axle sleeve and drive this collet chuck axle sleeve displacement, when this collet chuck axle sleeve moves down a predetermined stroke, this elastic collet chuck can be relaxed state because of the temporary transient release of packing, grasping part, to be user-friendly for operations such as withdrawing, tool changing, lock cutter, must be by Wrench, and have effect of saving time and labor.

The technology that relevant the utility model adopted, means and effect thereof are lifted after a preferred embodiment and conjunction with figs. be described in more detail in now, believe the above-mentioned purpose of the utility model, structure and feature, can by one deeply and concrete understanding.

Description of drawings

Fig. 1 is the simple and easy schematic diagram of existing folder knife structure commonly used.

Fig. 2 is a decomposing schematic representation of the present utility model.

Fig. 3 is a user mode combination generalized section (before the tool changing) of the present utility model.

Fig. 4 is another user mode combination generalized section (in the tool changing) of the present utility model.

Fig. 5 is an another user mode combination generalized section (after the tool changing) of the present utility model.

The specific embodiment

Lift a preferred embodiment below, and come the clearer the utility model that intactly illustrates in conjunction with the accompanying drawings.

See also Fig. 2～shown in Figure 5, lock spindle of the present utility model, retraction mechanism, it comprises an axis 10, the moving bar 20 of axle, return unit 30, liner axle sleeve 40, lock-pushing rod 50, interlock axle sleeve 60, elastic collet chuck 70, and a collet chuck axle sleeve 80, wherein:

This axis 10 is a long shaft rod member, its inner rim hollow, and the inner wall at end face forms interior tapering 13, can wear this return unit 30, liner axle sleeve 40 in regular turn for this moving bar 20, and after establishing this lock-pushing rod 50, the moving bar 20 1 ends lock of this axle inserts this axis 10 inner edges, in addition, this axis 10 is formed with the lockhole 11 and slotted hole 12 of some connection its inner rim in its outer axial face two appropriate locations, these lockholes 11 are internal thread hole, can establish wherein for a locking bar 91 locks respectively, these slotted holes 12 are then inserted wherein for a reference column 92 respectively.

This moving bar 20 is the long bolt that without exception is the T font, and the one end forms external screw section 21.

This return unit 30 is a dish-shaped spring, has an elastic-restoring force after being compressed.

This liner axle sleeve 40 is a spacing member of using, the suitable place of its outer rim offers a circular groove 41, when this circular groove 41 is placed on this moving bar 20 in this liner axle sleeve 40, by chance the lockhole 11 with this axis 10 is relative, the other end of these locking bars 91 is locked in this circular groove 41, in order to keep out the other end of this return unit 30.

This lock-pushing rod 50 is one slightly to be the member of type, its inner rim is formed with interior spiral shell portion 51, use for external screw section 21 locks of these moving bar 20 1 ends and establish wherein, its outer edge surface is suitable locates then that five equilibrium is drilled with some locating holes 52 that run through its inner rim, when these locating holes 52 are locked on this moving bar 20 in this lock-pushing rod 50, by chance the slotted hole 12 with this axis 10 is relative, and an end sleeve that makes these reference columns 92 wherein.

This interlock axle sleeve 60 is a connection body, its cover is overlying on this axis 10 and inserts the outer rim place of its slotted hole 12 for these reference columns 92, and suitable place offers an inner groove 61 in the inner edge of relative these slotted holes 12, make these reference column 92 outer ends be subjected to a limited block 93 ejections and be arranged in this inner groove 61 places, thereby make this interlock axle sleeve 60 can be subjected to these moving bar 20 displacements and rotate; And the spiral shell spare that this limited block 93 is an ora terminalis tool scalene cone 931, it just can be locked on interior spiral shell portion 51 other ends of this lock-pushing rod 50, by this reference column of ejection 92 displacements of when lock is established, taking advantage of a situation of its scalene cone 931, and be arranged in this inner groove 61 places, in addition, these interlock axle sleeve 60 other ends form a section of being spirally connected 62, establish in conjunction with this collet chuck axle sleeve 80 in order to spiral shell.

This elastic collet chuck 70 places in these axis 10 ends, in order to the clamping cutter, the outer edge surface of these elastic collet chuck 70 2 ends forms the one first outer tapering 71 and the second outer tapering 72 respectively, this first outer tapering 71 by chance with interior tapering 13 butts of this axis 10, thereby make this elastic collet chuck 70 be packing, clamp position.

These collet chuck axle sleeve 80 covers are overlying on this elastic collet chuck 70 outsides, its inner rim one end forms an internal thread segment 81, in order to establish binding with the section of being spirally connected 62 locks of this interlock axle sleeve 60, the other end then forms starting taper face 82 that should elastic collet chuck 70 second outer taperings 72, makes these elastic collet chuck 70 certain packings, clamping cutter.

Form according to above-mentioned member, when this moving bar 20 is accepted tool changing instruction and during to bottom offset, can compress this return unit 30 and see through this interlock axle sleeve 60 and drive this collet chuck axle sleeve 80 displacements, when this collet chuck axle sleeve 80 moves down a predetermined stroke, this elastic collet chuck 80 can be relaxed state because of the temporary transient release of packing, grasping part, and then is user-friendly for operations such as withdrawing, tool changing, lock cutter.

Below, now that the utility model is detailed use is discussed in the back:

Please referring again to shown in Figure 3, when this moving bar 20 compresses this return unit 30 and is shifted downwards, seeing through these reference columns 92 can move down with the interlock axle sleeve 60 that this moving bar 20 links thereupon, when these interlock axle sleeve 60 displacements, this collet chuck axle sleeve 80 is also done relative moving down (as shown in Figure 4) by its drive, thus, this elastic collet chuck 70 can be because of being pushed in the second outer tapering 72, the release of the pressure of packing and lax gradually, when this moving bar 20 is shifted downward to last stroke, this elastic collet chuck 70 can relax fully and take advantage of a situation to bottom offset (as shown in Figure 5), at this moment, the user just can carry out the tool changing operation, and when cutter changing was finished, this moving bar 20 can be subjected to the elastic force pushing tow of this return unit 30, upwards be moved to original position and drive this collet chuck axle sleeve 80, make these elastic collet chuck 70 clamping cutters and reach lock cutter purpose, thus, can make the cutter tool changing, the operation of lock cutter is accomplished without any letup, time saving and energy saving, and must not have more practicality and progressive and have structure commonly used now by Wrench.

Claims

1, a kind of lock spindle, retraction mechanism is characterized in that this mechanism includes:

One axis, this axis inner edge hollow, be built-in with one wear a return unit and a liner axle sleeve the axle moving bar, this moving bar one end lock is provided with a lock-pushing rod, the suitable place of this liner axle sleeve outer rim offers a circular groove, the suitable place of this lock-pushing rod outer rim five equilibrium has provided some locating holes, this axis is to should circular groove and this locating hole place, be formed with the some lockholes and the slotted hole that are communicated with its inner rim, spiral shell is provided with some locking bars in this lockhole, this slotted hole is built-in with shaft-like reference column, and this locking bar and reference column are arranged in this circular groove and locating hole place respectively;

One interlock axle sleeve, it is sheathed on the outer rim place that this axis has reference column to insert, the one end convexes with the section of being spirally connected, with collet chuck axle sleeve screw lock mutually, the suitable place of this interlock axle sleeve inner edge offers an inner groove, one end edge portion tool scalene cone of one limited block of locking from the other end of this lock-pushing rod, the other end of this reference column of ejection by this scalene cone is arranged in this inner groove place;

One elastic collet chuck in order to the clamping cutter, it places in this shaft end, and the outer edge surface of these elastic collet chuck two ends forms the one first outer tapering and the second outer tapering respectively, and the internal face that this axis installs for this elastic collet chuck forms corresponding interior tapering;

One collet chuck axle sleeve, it is sheathed on this elastic collet chuck outside, and the one end is locked with this couple axle interplanting and is established binding, and other end inner edge forms starting taper face that should the elastic collet chuck second outer tapering.

2, lock spindle as claimed in claim 1, retraction mechanism is characterized in that this moving bar drives the stroke distances of this collet chuck axle sleeve displacement, are to depend on that this reference column is positioned at the distance of this slotted hole internal shift.