JPS63120009A - Chamfering machine - Google Patents

Abstract

PURPOSE:To alter a chamfering quantity and prolong the service life of a cutter as well as to keep off any flaw on a work surface, by clamping a slide guide plate onto a first holding plate and a reference guide plate onto a second holding plate, respectively, while clamping both these plates together as one body, and attaching a slide plate thereto. CONSTITUTION:Both first and second holding plates 4 and 5 are shiftably installed in a fixed plate 2 via a support member 3, while a reference guide plate 6 is clamped onto the first holding plate 4 and a slide guide plate 9 onto the second holding plate 5, respectively, and both these holding plates 4 and 5 are clamped together with clamp screws 8a and 8b. And, when one side of these plates 4 and 5 is clamped to the fixed plate 2 and the other is rotated, a projecting quantity of a cutter 10 is varied whereby a chamfering quantity is alterable. And, if an interspace between both holding plates 4 and 5 is clamped together and rotated or moved in the longitudinal direction, a relative angle between both guide plates 6 and 9 is movable in the longitudinal direction in keeping it constant, so that the contact position with the cutter 10 is altered and thus service life is prolonged. In addition, a detachable slide plate 14 is attached thereto, whereby any flaw on a work surface can be kept back in this way.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a chamfering machine for cutting edge portions of a material to be cut.

[Conventional technology]

In general, a chamfering machine for a plate-shaped cutting machine has fixed plates 2 on the left and right sides on a base plate 1, as shown in FIG. A reference guide plate 6 tilted backward is directly fixed so that the relative angle θ between the two is approximately 90°, and a cutter 10 rotated by a motor M is disposed directly below the center of both guide plates 6 and 9. It has a structure.

Chamfering is then possible by bringing the material to be cut into contact with the reference guide plate 6 and moving it on the slide guide plate 9.

When changing the amount of chamfering, the entire motor M is raised and lowered by the lifting mechanism 16 supporting the motor M, and the amount of protrusion of the cutter 10 that contacts the material to be cut is adjusted to cut an appropriate amount according to the design. ing.

[Problem that the invention seeks to solve]

However, when changing the amount of chamfering with the chamfering machine, the motor M supporting the cutter 10 must be raised and lowered, so the lifting mechanism 16 becomes large.
The cost will be high. In addition, in order to move the cutter 10 up and down, it is necessary to drill a large blade hole 17 directly under the center of both corresponding guide plates 6°9, which causes the problem that narrow or small workpieces fall through the hole 17 and cannot be chamfered. was there.

Moreover, since the cutter 10 simply moves up and down, it always cuts at the same location, resulting in local reduction. Therefore, the life of the cutter 10 is shortened. Furthermore, there are various problems such as the fact that the material to be cut is easily slid on the slide guide plate 9, causing scratches on the surface.

[Object of the invention] The present invention has been made to solve the above problems,
A chamfering machine that allows you to easily change the amount of chamfering, reduces costs, can chamfer small widths and materials to be cut, extends the life of the cutter, and does not cause scratches on the surface of the material to be cut. The purpose is to provide the following.

[Means for solving problems]

The structure of the present invention to achieve the above object is to provide a fixed plate on the plywood, and provide a slide guide plate tilting forward and a reference guide plate tilting backward on the fixing plate. In a chamfering machine in which a rotating cutter is disposed directly below the center of a guide plate, first and second holding plates are movably provided on the fixed plate via a support member, and a sliding guide is provided on the first holding plate. The plate is fixed, a reference guide plate is fixed on the second holding plate, and the first and second holding plates are each fixed with clamp screws.

[Action of the invention]

If one of the holding plates holding the slide guide plate or the reference guide plate is clamped and fixed to the fixed plate and the other holding plate is rotated, the relative protrusion amount of the cutter changes and the surface The amount taken can be changed.

In addition, by clamping and fixing both holding plates and rotating or moving both in the front and rear directions, it is possible to move the two guide plates in the front and back directions while keeping the relative angle θ constant, and the workpiece can be relatively cut. The contact position between the cutter and the cutter changes.

Furthermore, if a removable slide plate is attached to the slide guide plate or the reference guide plate, the surface of the material to be cut does not come into direct contact with these guide plates.

[Embodiments of the invention]

Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 shows an embodiment of a chamfering machine according to the present invention.

1 is plywood, and fixed plates 2 are disposed on the left and right sides of this base plate 1. The upper portions of both defining plates 2 are approximately V-shaped;
As shown in FIG. 2, a support member 3 consisting of a support shaft is provided across both plates at the lower part. On the outside of both defining plates 2, there is provided a second outer side supported by the support member (spindle) 3.
Holding plates 4 are provided on the left and right sides, and first holding plates 5, which are similarly supported by the spindle 3, are provided on the left and right sides.

The first outer holding plate 5 is a substantially triangular plate, and a forwardly inclined slide guide plate 9 is fixed to the upper part of the first outer holding plate 5. Furthermore, arc-shaped elongated holes 7b are provided in the upper part of the first holding plate 5, and clamp screws 8b are attached to the elongated holes 7b. Therefore, by loosening the clamp screw 8b, the slide guide plate 9 can be rotated back and forth about the support shaft 3 supporting the first holding plate 5 as the rotation axis. On the other hand, the upper portions of the left and right second holding plates 4 are substantially V-shaped, and a reference guide plate 6 tilting rearward is fixed to the upper portions. Further, the second holding plate 4
An arc-shaped long hole 7a is provided in the upper part of each of the holes 7a, and a clamp screw 8a is attached to the long hole 7a. Therefore, by loosening the clamp screw 8a, the reference guide plate 6 can be rotated in the front-rear direction about the support shaft 3 that supports the second holding plate 4, as shown in FIG. There is. Also, use this clamp screw 8b to
If the clamp screw 8a is loosened while the holding plate 5 and the second holding plate 4 are clamped, the reference guide plate 6 and the slide guide plate 9 can be moved in the front-back direction while keeping the relative angle θ constant. It can be rotated.

Further, a cutter blade 11 for chamfering the cut material 15 is disposed directly below the center of both guide plates 6 and 9.

A cutter 10 is provided. The cutter shaft 12 is supported by a cutter bearing plate 13 fixed to the left and right fixing plates 2. A motor M that rotates the cutter 10 is connected to one end of the cutter shaft 12 .

A slide plate 14 curved in an L-shape is detachably attached to the slide guide plate 9 at its tip that can move left and right.The cutter 10 is rotated, the material to be cut 15 is placed on the slide plate 14, and the material to be cut 15 is placed on the slide plate 14. Chamfering is performed by moving one end surface of the cutting material 15 in the left-right direction while bringing it into contact with the reference guide plate 6.

The cutting speed for chamfering depends on the material of the workpiece 15, but generally it is 100 m in the case of die steel and 300 m in the case of iron.
m, preferably 1000 m in the case of aluminum. still,
The cutter 10 has a cutter blade 1 in consideration of cutting accuracy and efficiency.
It is preferable for the cutter blade 11 to be installed diagonally, and it is also preferable that the cutter blade 11 be replaceable, since the cutter blade 11 will wear out when used for a long time.

To change the amount of chamfering, loosen the clamp screw 8b that clamps and fixes the slide guide plate 9 and rotate the slide guide plate 9 back and forth.The amount of protrusion of the cutter 10 will change relative to the amount of chamfering. It can be changed.

Further, when it is desired to change the cutting position of the cutter 10, the first retaining plate 5 is clamped with the clamp screw 8b, and the second retaining plate 4 is clamped with the clamp screw 8a.
If you loosen it and rotate both the holding plates 4 and 5 back and forth, the guide plates 6 and 9 will rotate back and forth while keeping the relative angle θ between them constant.
The contact position between the cut material 15 and the cutter 10 can be changed relative to each other. Note that this relative angle θ is generally desirably around 90°.

According to the above chamfering machine, when changing the amount of chamfering, it is only necessary to loosen the clamp screw 8b that clamps and fixes the slide guide plate 9 and rotate the slide guide plate 9 back and forth, so that the amount of chamfering can be changed. It has a simple mechanism and can be operated easily. Therefore, the cost of the entire device can be reduced. Furthermore, since the cutter 10 is not moved up and down when changing the amount of chamfering, the cutter blade 11 of the cutter 10 does not come into contact with the lower surface of the reference guide plate 6 or the slide guide plate 9, and there is no fear of cutting them.

Therefore, there is no need to drill large cutting holes in both guide plates 6.9, and narrow cut materials and small cut materials 15 will not fall through these holes.
Even small objects can be chamfered.

Further, in the chamfering operation, the material to be cut 15 is placed on the slide plate 14 and moved, so the slide guide plate 9 is not directly touched and no scratches are caused on its surface.

FIG. 4 shows another embodiment of the present invention, in which the slide guide plate 9 is horizontally movable in the front-rear direction.

That is, as shown in FIGS. 5 to 7, the support member 3 is guided in the front and back direction formed on the fixing plate 2; a3a and its groove 3a.
It is composed of a slider 3b that slides inside in the front-rear direction, and a bolt shaft 3c attached to the slider 3b. It is designed to support the second holding plate 4. In other words, the first holding plate 5 holding the slide guide plate 9 is supported by the slider 3b of the supporting member 3, and the second holding plate 4 holding the reference guide plate 6 is supported by the bolt shaft 3C of the supporting member 3. I support it.

Therefore, when changing the amount of chamfering, loosen the clamp screw 8a that clamps and fixes the second holding plate 4 and rotate the second holding plate 4 about the bolt shaft 3C of the support member 3. The guide plate 4 is rotated, the amount of protrusion of the cutter 10 is changed relative to the amount of the cutter 10, and the amount of chamfering is changed.

In addition, the clamp screw 8a is kept clamped to fix the space between the first retaining plate 5 and the second retaining plate 4, and the clamp screw 8b (long in the front-rear direction) that clamps the first retaining plate 5 is fixed. (attached to hole 7b) and move both retaining plates 4.5 in the front and back direction using guide a3a of support member 3 as a guide, both guide plates 6 and 9 will maintain a constant relative angle θ. It moves in the front-back direction to change the contact position between the workpiece 15 and the cutter 10.

An eccentric shaft 18 is provided between the first left and right holding plates 5 so that both can move accurately and smoothly at the same time, and similarly, both of the second left and right holding plates 4 can move accurately and smoothly at the same time. In order to enable smooth movement, eccentric shafts 19 are provided on the first left and right holding plates 5 to support the second holding plate 4, respectively.

The slide plate 14 is normally attached to the slide guide plate 9 side, but for reasons such as the shape and size of the material to be cut 15 and the working posture, it may be attached to the reference guide plate 6 side and use the slide guide plate 9 side as a reference plate. is also possible.

〔Effect of the invention〕

As described above, according to the present invention, the amount of chamfering can be easily changed, costs can be reduced, it is possible to chamfer small widths and materials to be cut, the life of the cutter can be extended, and scratches on the surface of the material to be cut can be prevented. This has the effect of eliminating the problem.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of one embodiment of the present invention, and Fig. 2 is its A-
A sectional view, FIG. 3 is a side view, FIG. 4 is a perspective view of another embodiment, FIG. 5 is a sectional view taken along line A-A, FIG. 6 is a side view, and FIG. The BB enlarged cross-sectional view, FIG. 8, is a cross-sectional view of the conventional one. l... Base plate, 2... Fixing plate, 3... Supporting member, 3
a... Guide groove, 3b... Slider, 3C... Bolt shaft, 4.5... Holding plate, 6... Reference guide plate, 8a
, 8b... (clamp screw, 9... slide guide plate, 10... cutter, 14... slide plate. j n) Fig. 3 Fig. 8

Claims (4)

[Claims] (1) A fixed plate is provided on the base plate, and a slide guide plate that slopes forward and a reference guide plate that slopes backward are provided on the fixed plate, and the cutter rotates directly below the center of these guide plates. In the chamfering machine, first and second holding plates are movably provided on the fixed plate via a support member, a slide guide plate is fixed on the first holding plate, and a second holding plate is fixed on the first holding plate. A chamfering machine characterized in that a reference guide plate is fixed on a plate, and first and second holding plates are respectively fixed with clamp screws. (2) The chamfering machine according to claim 1, wherein the support member is constituted by a support shaft provided on the fixed plate. (3) The support member is comprised of a guide groove formed in the fixed plate, a slider that slides in the front and back direction within the guide groove, and a bolt shaft attached to the slider. chamfering machine. (4) The chamfering machine according to any one of claims 1 to 3, wherein the guide plate is provided with a removable slide plate.