KR101285962B1 - Blade attached and removed device - Google Patents

Abstract

The blade detachment apparatus is provided with the flange holding part 1 for attaching and detaching a flange, and the nut rotation support part 2 for attaching and detaching a nut. The flange holding part 1 is attached to the nut rotation support part 2 so that attachment and detachment are possible. The flange D supported by each engagement pawl 11b of the flange holding part 1 and the nut E supported in the recess 21d of the nut rotation support part 2 are the nut rotation support part 2. And the flange gripping portion 1 are integrally attached to and detached from the blade mounting portion of the spindle B at the same time. In addition, the flange D and the nut E are detachably attached to the blade mounting part of the spindle B in the state which isolate | separated the nut rotation support part 2 and the flange holding part 1.

Description

Blade detachment device {BLADE ATTACHED AND REMOVED DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blade detachment device, and more particularly, to a blade detachment device for attaching or detaching a blade as a rotary cutting edge to a cutting device for cutting a semiconductor wafer or the like.

A blade (rotary cutting edge) is attached to a cutting device for cutting a predetermined position of a workpiece such as a semiconductor wafer and dividing the semiconductor wafer into minimum units. The blade is attached to the distal end mounting portion of the spindle of the cutting device by a nut for attaching and detaching the blade. If the blade is consumed or broken, it is necessary to replace the blade. In addition, even when the type of the workpiece is changed or the processing content of the workpiece is changed, it is necessary to replace the blade as appropriate.

As a method of mounting a blade to the front end mounting part of a spindle, the method of fitting a blade between two flanges, for example, and mounting a flange to a spindle front end mounting part with a nut in that state are known.

Moreover, the patent document (Japanese Unexamined-Japanese-Patent No. 2005-191096) proposes the blade attachment / detachment apparatus which made the nut and flange detachable simultaneously with respect to the front-end | tip mounting part of a spindle. In this blade detachment apparatus, the flange and the nut are detached at the same time by rotating the nut while holding the flange attached to the distal end mounting portion of the spindle.

According to the blade detaching apparatus described above, the nut can be rotated at least while holding the flange located on the nut side. Thus, after the nut is removed from the distal end mounting portion of the spindle, the nut and the flange on the nut side are supported, and the nut and the flange can be prevented from falling off.

In addition, in this blade attachment / detachment device, since the nut can be removed and the flange can also be removed, the supported nut and the flange can be attached to the distal end mounting portion of the spindle in the reverse order of the removal order.

In this manner, in the blade detachment apparatus described above, by simultaneously supporting the nut and the flange, the nut and the like can be prevented from falling off, and the nut and the flange can be detached from the spindle at the same time.

Japanese Patent Application Laid-Open No. 2005-191096

However, in the blade detachment apparatus described above, when only the nut is attached to or detached from the flange or only the flange is attached to or detached from the front end mounting portion of the spindle, there is a problem that the operability is poor and the work efficiency is deteriorated.

For example, when mounting the flange while checking the mounting state of the flange with respect to the distal end mounting portion of the spindle, if the nut is not supported by the blade detachable device, the operation can be performed efficiently and smoothly. There is. In addition, when carrying out a mounting operation of a flange and performing a mounting operation of a nut simultaneously, both mounting operations need to be performed more prudently, and this operation requires skill.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a blade detachment device excellent in operability in attaching and detaching a nut and a flange to a tip mounting portion of a spindle.

A blade detachment device according to the present invention is a blade detachment device for attaching or detaching a cutting blade to a cutting device for cutting a workpiece, and for attaching the blade to a blade mounting portion of the cutting device. The flange holding part which attaches or detaches a flange, and the nut rotation support part which attaches or detaches the nut for attaching a blade to a blade mounting part are included.

The flange gripping portion includes a sleeve-shaped flange gripping portion main body, a flange gripping means provided in the circumferential direction in the flange gripping portion main body, and an operation member for operating the flange gripping means provided on the outer circumferential surface of the flange gripping portion main body.

The flange gripping means has a first coupling pivotable in a first direction away from the first shaft center of the flange gripping portion main body and a second direction close to the first shaft center about the first shaft point supporting the one end side. A pole and a 1st elastic member which add a 1st coupling pole to a 1st direction are provided.

The flange gripping means slides the operation member in the axial direction of the flange gripping portion main body, and rotates the first engagement pawl in the second direction against the elastic force of the first elastic member to thereby blade the first engagement pawl. Engaging the first circumferential groove formed in the mounting site, and conversely, separating the first engagement pawl from the first circumferential groove by rotating the first engagement pawl in the first direction by the elastic force of the first elastic member. Have

The nut rotation support part is provided with the nut rotation support part main body, a nut rotation support part provided in the nut rotation support part, and a flange gripping part detachable member for attaching or detaching a flange grip part to the nut rotation support part, and the nut rotation support part provided in the nut rotation support part main body. Doing.

The flange gripping portion detachable member is rotatable in a third direction away from the second shaft center of the nut rotation support unit body and a fourth direction close to the second shaft center with respect to the second shaft point supporting the one end side. The 2nd engagement member and the 2nd elastic member which adds a 2nd engagement pole to a 3rd direction are provided.

The flange gripping portion detachable member rotates the second coupling pawl in the third direction by the elastic force of the second elastic member, thereby engaging the second coupling pawl with the second circumferential groove formed on the inner circumferential surface of the flange gripping body. By mounting the flange gripping portion to the nut rotation support, and conversely, by rotating the second engagement pawl in the fourth direction against the elastic force of the second elastic member, the second engagement pawl is separated from the second circumferential groove. And the flange gripping portion is separated from the nut rotation support portion.

According to the blade detaching apparatus according to the present invention, by using the flange gripping portion and the nut rotating support in an integrated state, the nut and the flange can be simultaneously supported, and the nut and the flange can be prevented from falling off. With respect to the tip mounting portion of the spindle, the nut and the flange can be attached and detached at the same time.

In addition, by separating and using the flange gripping portion and the nut rotating support separately, the nut and the flange can be detachably attached to the tip mounting portion of the spindle.

This makes it possible to adapt to various detachable operations (manipulations) of the nut and the flange with respect to the tip mounting portion of the spindle.

As the flange gripping means, it is preferable that three flange gripping means are arranged at equal intervals in the circumferential direction in the flange gripping portion main body.

Moreover, it is preferable to provide the non-slip means in the outer peripheral surface of a nut rotation support part and an operation member. In this case, the operation | work which grasps a blade by a flange holding part, and the operation | movement which rotates a nut by a nut rotation support part can be performed efficiently and reliably, and the safety of a work can be improved.

Moreover, it is preferable to provide the flange holding part with the stopper which controls the sliding of an operation member.

In addition, the stopper is preferably formed integrally with the first coupling pawl.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows schematically the whole blade detaching apparatus which concerns on Example 1 of this invention.
FIG. 2: is a figure which shows the positional relationship of the blade detaching apparatus shown in FIG. 1, and the spindle of a cutting machine in FIG. 1, and FIG. 2 (a) is sectional line IIa-IIa shown in FIG. The longitudinal cross-sectional view of the 1st state of the blade detaching apparatus corresponding to), the side view which shows a spindle, and FIG.2 (b) are the 2nd of the blade detaching apparatus corresponding to sectional line IIa-IIa shown in FIG. Longitudinal sectional view of the state of a state, and a side view which shows a spindle.
Fig. 3 is a view for explaining the operation by the blade detaching device in the same embodiment, and Fig. 3 (a) is a longitudinal sectional view showing a state in which the flange gripping portion is separated from the nut rotation support portion, and Fig. 3 (b). Is a longitudinal sectional view of the flange gripping portion.
Fig. 4 is a view for explaining the operation by the blade detaching device in the same embodiment, Fig. 4 (a) is a first longitudinal cross-sectional view of the nut rotating support section, and Fig. 4 (b) is a drawing showing the first rotational view of the nut rotating support section. 2 longitudinal cross-sectional view.
FIG. 5 is a view for explaining the operation by the blade detaching device in the same embodiment, and FIG. 5 (a) is a longitudinal cross-sectional view showing a state before fitting the blade detaching device to the distal end mounting portion of the spindle; FIG. (b) is a longitudinal cross-sectional view which shows the state which fitted the blade detachable apparatus to the front-end | tip mounting part of a spindle.
Fig. 6 is a view for explaining the operation by the blade detaching device in the same embodiment, and is a longitudinal sectional view showing a coupling state between the flange gripping portion and the nut rotation support portion.
Fig. 7 is a view for explaining the operation by the blade detaching device in the embodiment, and is a longitudinal sectional view showing a state in which the flange and the nut are separated and supported from the tip mounting portion of the spindle.
Fig. 8 is a perspective view schematically showing the entire blade detachment apparatus according to the second embodiment of the present invention.
Fig. 9 is a longitudinal sectional view schematically showing main portions of a flange gripping portion and a nut rotation support portion of the blade detaching apparatus according to the third embodiment of the present invention.

Hereinafter, with reference to FIGS. 1-5, the blade detaching apparatus which concerns on Example 1 of this invention is demonstrated.

(Example 1)

1 illustrates a blade detachment apparatus according to the first embodiment.

This blade detachment apparatus is used to detach a blade (rotary cutting edge) of a cutting device for cutting a predetermined position of a workpiece such as a semiconductor wafer and dividing the semiconductor wafer into minimum units (chips). More specifically, a blade detachment apparatus is used when attaching and detaching the blade of a cutting machine, the flange which clamps the blade, a nut which fixes a blade, etc.

The blade detachment apparatus is provided with the flange holding part 1 for attaching and detaching a flange, and the nut rotation support part 2 for attaching and detaching a nut.

The flange holding part 1 is attached to the nut rotation support part 2 so that attachment and detachment are possible.

The flange gripping portion 1 includes a sleeve-shaped flange gripping portion main body 10, at least three flange gripping means 11, and an operation member 12 for operating the flange gripping means 11. . The three flange holding means 11 are provided in the circumferential direction of the flange holding part main body 10 at equal intervals.

In addition, in this blade attachment and detachment device, although it is shown about the case where three flange holding means were provided in order to make it the simple structure with the minimum flange holding function required, it responds to the structure, weight, and other requirements of a flange. In addition, four or more flange holding means may be provided at equal intervals in the circumferential direction of the flange holding part main body.

As shown in FIG.2 (a) or FIG.2 (b), each of the three flange holding means 11 is axially supported by the flange holding part main body 10 at the one end side (left side toward a longitudinal surface). 11a) is provided with the engaging pawl 11b. The engaging pawl 11b is rotatably mounted along the radial direction of the flange holding part 1 with the part of the axial support 11a as a point. That is, the engagement pawl 11b is rotatably mounted in the direction away from the shaft center of the flange holding part 1, and the direction close to the shaft center. In addition, the engaging pawl 11b is biased by the elastic force of the elastic member 11c, such as a spring, on the opposite side (direction away from an axis center) of the flange holding part main body 10. As shown in FIG.

The operation member 12 is enclosed in the outer peripheral part of the flange holding part main body 10 so that the flange holding part main body 10 can slide to the axial direction (left-right direction toward a longitudinal surface).

As shown in Fig. 2 (a), the operation member 12 is slid in the axial direction (the right direction toward the longitudinal surface) of the flange holding part main body 10, so that the three engagement poles 11b are elastic members ( The engaging pawl 11b is closed by the operation (close operation) which rotates to the axial center side (direction close to the axial center) of the flange holding part main body 10 against the elastic force of 11c). By the operation of rotating the three engaging pawls 11b in a direction close to the axis center of the flange gripping portion main body 10, the peripheral grooves of the engaging pawls 11b formed on the outer circumferential surface of the flange D are formed. Iii) can be coupled to D1.

On the other hand, as shown in FIG.2 (b), the operation member 12 is slid in the axial direction (left direction toward the longitudinal surface) of the flange holding part main body 10, and three engagement poles 11b are elastic. The engagement pawl 11b is opened by the operation (opening operation) which rotates to the opposite side (direction away from an axis center) of the flange holding part main body 10 by the elastic force of the member 11c. Each of the engaging pawls 11b is coupled to the circumferential groove D1 of the flange D by an operation of rotating the three engaging pawls 11b in a direction away from the shaft center of the flange holding part main body 10 as described above. It can be taken out of the condition.

The nut rotation support part 2 includes a sleeve-shaped nut rotation support part main body 20 and a flange grip part detachable member 21 for attaching or detaching the flange grip part 1 to the nut rotation support part main body 20. And a nut rotating member 22 for rotating the nut.

As shown in FIG.2 (a) or FIG.2 (b), as for the flange holding part detachable member 21, the one end side (right side toward the longitudinal surface) is axially supported by the nut rotation support part 2 (21a). The engaging pawl 21b is provided. The engagement pawl 21b is rotatably attached along the radial direction of the nut rotation support part main body 20 by making into the part the axial support 21a the point. That is, the engagement pawl 21b is rotatably mounted in the direction away from the shaft center of the nut rotation support part main body 20, and the direction approaching a shaft center. In addition, the engaging pawl 21b is biased by the elastic force of the elastic member 21c, such as a spring, on the opposite side (direction away from an axis center) of the nut rotation support part main body 20. As shown in FIG.

As shown in FIG.2 (a) or FIG.2 (b), the flange holding | maintenance part is couple | bonded by the joined coupling pole 21b to the circumferential groove 10a formed in the inner peripheral surface of the flange holding part main body 10. FIG. (1) is in a state where it is attached to the nut rotation support part (2).

In addition, at this time, although the flange holding part 1 is attached to the nut rotation support part 2, the engaging pawl 21b and the circumferential groove 10a relatively rotate in the circumferential direction of the circumferential groove 10a. Is in a possible state.

As shown in Fig. 3 (a), the engaging pawl 21b is rotated to the axial center side (direction close to the axial center) of the nut rotation support unit body 20 against the elastic force of the elastic member 21c. , The coupling pole 21b can be released from the state coupled to the circumferential groove 10a of the flange holding portion main body. In this state, the flange gripping portion 1 and the nut rotation supporting portion 2 can be easily separated by sliding the flange holding portion 1 and the nut rotation supporting portion 2 relatively in the axial direction.

The whole of the nut E attached to the distal end mounting portion is formed on the end face (in the figure, the right end surface) on the nut rotation support part main body 20 side facing the distal end mounting portion of the spindle B of the cutting machine. A recessed portion 21d for penetrating the gap is formed.

In this recessed portion 21d, two nut rotating members 22 are inserted into the coupling holes provided in the nuts E to be described later.

Moreover, in this blade attachment / detachment device, although the nut rotation member 22 is shown about the case where two nut rotation members 22 are arrange | positioned at equal intervals in the circumferential direction in the recessed part 21d for the purpose of the minimum required structure, a nut ( In accordance with the structure of the coupling hole formed in E), the number of the coupling holes, and other requirements, the shape and the number thereof may be changed.

In addition, in this blade detachment apparatus, although the case where the nut rotation member 22 was fixed in the recessed part 21d is shown, you may change so that it may respond to the thickness of the nut E, the shape of a coupling hole, etc. As shown in FIG. For example, the nut rotating member may be projected in the axial direction by the elastic force of an elastic member such as a spring, and the elastic stretching means (not shown) may be used in combination to adjust the retracting of the protruding nut rotation member in the axial direction. You may also do it.

In addition, as shown in FIG.4 (b), in this blade detachment apparatus, the through-hole 24 is provided in the axial center part of the nut rotation support part main body 20. As shown in FIG. The through hole 24 is formed in the size which can penetrate the tool 3 which prevents spindle rotation, such as a torque wrench mentioned later.

The spindle B is provided with an engaging groove B1 to which the tool 3 for preventing spindle rotation is engaged. In addition, as shown in FIG. 6, the coupling hole E1 through which the nut rotating member 22 is inserted is formed in the nut E. As shown in FIG.

In addition, in the case of the cutting apparatus which is provided with the locking mechanism etc. (not shown) for automatically or manually stopping the rotation of the spindle B when a cutting operation is not performed as a cutting apparatus, It is not necessary to use the tool 3 which prevents spindle rotation at the time of attaching and detaching the nut E. FIG. In such a case, it is not necessary to necessarily provide the through-hole 24 for penetrating the tool 3 in a blade detaching apparatus.

Next, with reference to FIGS. 1-7, the procedure which attaches and detaches the nut and flange for blade attachment and detachment with respect to the front end mounting part of the spindle B of a cutting machine is demonstrated.

What is necessary is just to carry out as follows when removing the blade E and the flange D which are attached to the front-end | tip mounting part of the spindle B simultaneously.

First, as shown to Fig.5 (a), the operation member 12 is slid in the axial (axial center) direction (left direction toward a longitudinal surface) of the flange holding part main body 10, and the flange holding means 11 is carried out. Each engaging pawl 11b is rotated in the outward direction (direction away from the shaft center) by the elastic force of each elastic member 11c, so that each engaging pawl 11b is opened (coupling pawl 11b). Opening operation).

Next, in the state where each engaging pawl 11b is opened, the end face (cross section of the right side toward the longitudinal surface) of the blade detachable device is attached to the tip mounting portion of the spindle B as shown in Fig. 5B. While engaging, each engaging pawl 11b is coupled to the circumferential groove D1 formed on the outer circumferential surface of the flange D, and the cross section (the right side toward the longitudinal plane) of the nut rotation support part main body 20 side of the blade detachment device is fitted. In the recessed portion 21d provided in the cross section), the entire nut E mounted on the tip mounting portion of the spindle is fitted.

When fitting the whole nut E in the recessed part 21d, as shown in FIG. 6, rotating the nut rotation support part main body 20 in the circumferential direction, the two nuts provided in the recessed part 21d are shown. The rotating member 22 may be inserted into the engaging hole E1 provided in the nut E. FIG.

Moreover, after inserting the nut rotation member 22 into the engagement hole E1, as shown to FIG. 5 (b) and FIG. 6, the operation member 12 is the axis | shaft (axial center) of the flange holding part main body 10. As shown in FIG. Sliding in the direction of () to the right side of the longitudinal surface, so that each engaging pawl 11b of the flange gripping means 11 is rotated in an inward direction (direction close to the shaft center) against the elastic force of each elastic member 11c. By doing so, each engagement pawl 11b is closed (close operation of the engagement pawl 11b). Thereby, each engagement pawl 11b couple | bonded with the circumferential groove D1 of the outer peripheral surface of the flange D is reliably engaged in the circumferential groove, and the flange D is reliably gripped by each engagement pole 11b. You can.

Next, by unscrewing the nut E by rotating the nut rotation support part main body 20, the nut E can be removed from the tip mounting part of the spindle B. As shown in FIG.

At this time, the engaging pawl 21b of the flange holding part detachable member 21 is coupled to the circumferential groove 10a of the flange holding part main body 10. For this reason, although the nut rotation support part main body 20 (nut rotation support part 2) and the flange holding part main body 10 (flange holding part 1) integrally move simultaneously in an axial direction, Since it is possible for 21b to rotate the inside of the circumferential groove 10a in the circumferential direction, the nut rotation support part main body 20 and the flange holding part main body 10 can be rotated relatively in the circumferential direction.

In addition, at this time, the nut E is supported in the recessed part 21d of the nut rotation support part main body 20 in the state which the nut rotation member 22 penetrated into the engagement hole E1.

In the above case, when the spindle B is locked so as not to rotate, the nut rotation support main body 20 is rotated to release the nut E, and the nut rotation support main body 20 and the nut E are released. Is moved in the axial direction (the left direction toward the longitudinal surface).

Thereby, the flange holding part main body 10 integrated with the nut rotation support part main body 20 also moves simultaneously in the same direction. As a result, the flange D gripped by each engagement pawl 11b can also be separated from the tip mounting portion of the spindle B together with the nut E. FIG.

Moreover, the flange D and the nut E which were isolate | separated from the front end attachment site | part of the spindle B are in the state reliably supported by the blade detaching apparatus. As a result, the flange D and the nut E can be prevented from falling off from the distal end portion of the spindle B or the blade detaching device.

In the above case, when the spindle B is in a rotatable state without being locked, since the spindle B rotates together through the nut E when the nut rotation support part main body 20 is rotated, the nut (E) cannot be separated from the distal end portion of the spindle B.

In such a case, as shown in FIG.4 (b), the tool 3, such as a torque wrench, is inserted through the through-hole 24 of the nut rotation support part main body 20, and the tip part of the tool 3 is a spindle. It is good to stop the rotation of the spindle by engaging the engaging groove B1 of. In that state, by rotating the nut rotation support part main body 20, the nut E can be isolate | separated from the tip mounting site | part.

Next, the case where the flange D and the nut E are separately attached to the distal end mounting portion of the spindle B will be described.

For example, as in the case of replacing a blade, a new blade is mounted on the tip mounting portion of the spindle B from which the blade is separated, and the new blade is fixed to a predetermined position on the tip mounting portion by a flange and a nut. The case where it is made will be explained.

At this time, the nut E separated from the distal end mounting portion of the spindle B is supported in the recess 21d of the nut rotation support 2, and the respective engagement of the flange gripping means 11 is supported. It is assumed that the flange 11b is gripped by the pawl 11b.

As shown in FIG. 7, the nut E is supported in the recessed part 21d of the nut rotation support part 2, and the flange D is attached to each engagement pawl 11b of the flange holding part 1. As shown in FIG. Is held. In addition, at this time, since the flange holding part 1 and the nut rotation support part 2 are integrated, the flange D and the nut E are supported by the blade detaching apparatus.

Thus, as shown in Fig. 3 (a), the flange gripping portion detachable member 21 is operated and the coupling pawls 21b are engaged with the circumferential grooves 10a of the flange gripping portion main body. Likewise, the flange gripping portion 1 and the nut rotation support portion 2 are separated.

At this time, the flange D is gripped by the separated flange gripping portion 1, and the nut E is supported by the nut rotation supporting portion 2.

Since the separated flange gripping portion 1 is a simpler structure than the original structure of the original blade attaching and detaching device, its handling becomes easy and the operability is improved.

Next, the separated flange gripping portion 1 is fitted to the tip mounting portion of the spindle B, and the flange D is mounted at the flange mounting position of the tip mounting portion. Next, the engaging pawls are slid by sliding the operating member 12 in the axial (axial center) direction (leftward toward the longitudinal plane) to rotate each engaging pawl 11b in the outward direction (direction away from the axial center). 11b is opened, and the state which each engaging pawl 11b couple | bonded with the circumferential groove D1 formed in the outer peripheral surface of the flange D is loosened. Thereafter, the flange gripping portion 1 is retracted from the tip mounting portion.

Moreover, since the separated nut rotation support part 2 becomes a simpler structure compared with the whole structure of the original blade detaching apparatus, the handling becomes easy and the operability improves.

While fitting the separated nut rotation support part 2 to the tip mounting part of the spindle B, the nut E in the recessed part 21d is attached to the nut provision position (screw part) of a tip mounting part. Next, by rotating the nut rotation support part 2 to fasten the nut E, the new blade C can be fixed to the predetermined position of the tip mounting part. Then, the nut rotation support part 2 is retracted from the tip mounting part.

In addition, in the above-mentioned case, when the spindle B is not locked and in a rotatable state, the spindle B rotates together when the nut E is rotated by the nut rotation support 2. Need to be prevented.

For this reason, as shown in FIG.4 (b), the tool 3 is inserted into the through-hole 24 of the nut rotation support part 2, and the front-end | tip part of the tool 3 is engaged with the engaging groove | channel of the spindle B ( The rotation of the spindle may be stopped by engaging with B1). In this state, by rotating the nut rotation support part 2, the nut E can be attached to a front end attachment site | part.

According to this embodiment, the nut and the flange are simultaneously or individually removed when the nut E and the flange D for attaching and detaching the blade with respect to the distal end mounting portion of the spindle B of the cutting machine are removed. It can support and can attach / detach.

As a result, an optimum order can be selected in response to various detachment and removal operations required in the cutting operation of the cutting device.

In addition, since the nut E and the flange D can be supported simultaneously or separately, problems such as accidental dropping of the nut or flange during removal operation of the blade removal apparatus can be eliminated. have.

Next, a blade detachment apparatus according to a second embodiment of the present invention will be described with reference to FIG. 8.

(Example 2)

In the second embodiment, the sliding operation of the operation member 12 and the rotation operation of the nut rotation support part main body 20 are performed in the various attachment / detachment operations (detachment operation) of the nut and the flange to the distal end mounting portion of the spindle. The blade removal apparatus which is more efficient and can be reliably performed is shown.

In addition, in the blade detachment apparatus according to the second embodiment, the difference from the blade detachment apparatus according to the first embodiment is as follows. Other points are the same as the configuration of the blade detachment apparatus according to the first embodiment. The members are given the same reference numerals and the description thereof will not be repeated.

As shown in FIG. 8, the characteristic of the blade detaching apparatus which concerns on Example 2 implements the non-slip means 12a to the outer peripheral surface of the operation member 12 of the flange holding means 11, and the nut rotation support part main body. This is the point where the non-slip means 20a was implemented on the outer peripheral surface of (20). As the non-slip means 12a and 20a, irregularities, grooves, rough surfaces, or the like are formed.

In order to perform the sliding action in the axial direction of the operation member 12 more efficiently and reliably, as the anti-slip means 12a, forming a plurality of peripheral grooves along the outer circumferential surface of the operation member 12 is required. desirable.

In addition, in order to perform the rotation action more efficiently and reliably in the circumferential direction (rotation direction) of the nut rotation support part main body 20, as an anti-slip means 20a, the outer peripheral surface of the nut rotation support part main body 20 is carried out. It is preferable to form a plurality of grooves along the axial direction.

According to the blade detachment apparatus which concerns on said 2nd example, sliding operation of the operation member 12 and rotation operation of the nut rotation support part main body 20 can be performed more efficiently and reliably.

Thereby, the various attachment / detachment operations of the nut and the flange can be performed correctly with respect to the distal end attachment part of the spindle, and the various attachment / detachment operations can be correctly assisted.

Next, a blade detachment apparatus according to the third embodiment of the present invention will be described with reference to FIG. 9.

(Example 3)

In the third embodiment, the operation member 12 falls off from the flange gripping portion main body 10 during various attachment / detachment operations of the nut and the flange to the distal end attachment portion of the spindle, in particular, in the attachment / detachment operation of the flange. It shows the blade detachment apparatus which can prevent that beforehand.

In addition, in the blade detachment apparatus which concerns on Example 3, it differs from the blade detachment apparatus which concerns on Example 1 or Example 2 as follows, About the other point, the blade detachment apparatus which concerns on Example 1 or Example 2 is Since it is the same as the structure of an apparatus, the same member attaches | subjects the same code | symbol, and the description is not repeated.

As shown in FIG. 9, the characteristic of the blade detaching apparatus which concerns on Example 3 is that the flange holding part 1 provided the stopper 11d for restricting the sliding of the operation member 12. As shown in FIG.

In the blade detachment apparatus shown in FIG. 9, a protrusion-shaped stopper 11d that restricts the slide of the operation member 12 to an end portion (the right end portion thereof toward the longitudinal side) of the engaging pawl 11b of the flange gripping means 11. ) Is provided.

This stopper 11d is advantageous in that it can be formed integrally with the engaging pawl 11b when forming the engaging pawl 11b without employing a special stopper mechanism.

In addition, such a stopper may be integrally formed in the outer peripheral surface of the edge part (right end toward the longitudinal surface) of the flange holding part main body 10. As shown in FIG.

According to the blade detaching apparatus according to the above-described third embodiment, when the flange D is gripped by the engaging pawl 11b, for example, the operation member 12 causes the flange gripping means 11 by a work miss. ) And the engaging pawls 11b are rotated outwardly (direction away from the shaft center), and as a result, the flange D falls out of the engaging pawls 11b and falls. It can be prevented to throw it away.

While the present invention has been described and illustrated in detail, it is intended to be illustrative, and not to be taken as limiting, the scope of the invention being clearly understood by the appended claims.

B: spindle
B1: combined groove
C: blade
D: Flange
D1: Perimeter Groove
E: Nut
E1: engagement hole
1: flange holding part
2: nut rotating support
3: tool
10: flange holding part body
10a: Peripheral groove
11: flange holding means
11a: shaft support
11b: combined pole
11c: elastic member
11d: stopper
12: operation member
12a: non-slip means
20: nut rotating support body
20a: non-slip means
21: flange holding part detachable member
21a: shaft support
21b: combined pole
21c: elastic member
21d: concave
22: nut rotating member
24: through hole

Claims (5)

In the blade removal apparatus for attaching or detaching the blade for cutting with respect to the cutting device which cuts a to-be-processed object,
A flange gripping portion for attaching and detaching a flange for attaching a blade to a blade mounting portion of the cutting apparatus;
It includes a nut rotation support for detaching the nut for mounting the blade to the blade mounting portion,
The flange gripping portion,
Sleeve-shaped flange gripping body,
Flange holding means provided in the circumferential direction in the flange holding portion main body;
It is provided in the outer peripheral surface of the said flange holding part main body, and is provided with the operation member which operates the said flange holding means,
The flange holding means,
A first engagement pawl rotatable in a first direction away from a first shaft center of the flange gripping portion main body, centering on a first shaft point supporting one end side, and in a second direction close to the first shaft center;
It is provided with the 1st elastic member which adds the said 1st coupling pole to the said 1st direction,
The flange holding means slides the operation member in the axial direction of the flange holding portion main body, and rotates the first engagement pawl in the second direction against the elastic force of the first elastic member. The first coupling pawl is coupled to the first circumferential groove formed in the blade mounting portion, and conversely, the first coupling pawl is rotated in the first direction by the elastic force of the first elastic member. 1 has a function of separating the coupling pawl from the first circumferential groove,
The nut rotation support portion,
Nut rotating support body,
A flange gripping portion detachable member provided on the nut rotation support portion for attaching or detaching the flange gripping portion to the nut rotation support portion;
A nut rotating member provided in the nut rotating support body;
The flange holding part detachable member,
A second engagement pawl rotatable in a third direction away from a second shaft center of said nut rotation support part main body about a second shaft point bearing one end side, and in a fourth direction approaching said second shaft center,
It is provided with the 2nd elastic member which adds the said 2nd coupling pole to the said 3rd direction,
The flange holding part detachable member rotates the second coupling pawl in the third direction by the elastic force of the second elastic member, so that the second coupling pawl is formed on the inner circumferential surface of the flange holding part main body. By attaching the flange gripping portion to the nut rotation support portion, and conversely, rotating the second engagement pawl in the fourth direction against the elastic force of the second elastic member to rotate the second coupling pawl. 2. A blade detachment device having a function of separating the flange gripping portion from the nut rotation support by separating the engaging pawl from the second circumferential groove. The method of claim 1,
Three flange holding means are arranged as said flange holding means at equal intervals in the circumferential direction in the said flange holding part main body, The blade detaching apparatus characterized by the above-mentioned. The method of claim 1,
An anti-slip device is provided on an outer circumferential surface of the nut rotation support part and the operation member. The method of claim 1,
A blade detachment device, characterized in that a stopper for regulating the slide of the operation member is provided in the flange gripping portion. 5. The method of claim 4,
The stopper is a blade detachment device, characterized in that formed integrally with the first coupling pawl.

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