JPH09193101A - Dovetail groove and dovetail protrusion machining apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to automatically machine a dovetail groove or dovetail shape on a material to be machined and to eliminate scattering of chips at the time of machining. SOLUTION: This dovetail groove and dovetail protrusion machining apparatus comprise a first guide rail 4 having a rack formed downward, a second guide rail 5 provided between a frame 3 and a movable base 8 in such a manner that the movable base moving in parallel on both the guide rails is stood on a base 1, a vertical mount 11 and horizontal mount 10 provided on the movable base, a first annular disc having a through hole opened at the eccentric position of the center and rotatably mounted in the circular guide groove formed on the back of the vertical mount, a dovetail machining unit 9 having a cutter and mounted in an eccentric state at the disc and rotatably displaceably installed, a guide feeding mechanism attached with a rotary shaft having a gear engaged with the rack of the first guide rail and provided on the lower surface of the horizontal mount to move in synchronization with the moving speed of the machining unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing device for dovetail groove and dovetail projection for processing dovetail groove, dovetail shape and the like in a workpiece such as furniture and fittings. In particular, the present invention relates to a processing apparatus that can easily perform a processing operation on a work material, can easily process a dovetail groove and a dovetail shape, and prevent cutting chips from scattering during processing.

[0002]

2. Description of the Related Art Conventionally, as a processing device for this kind of dovetail groove and dovetail projection, the applicant has developed a processing device as shown in Japanese Utility Model Publication No. 61-6084. This conventional processing apparatus has a frame having a bed on which a workpiece is placed and fixed, and a first guide rail and a rack portion facing the frame and parallel to each other. The frame is provided between the frame and the movable table. A second guide rail and a movable base that moves in parallel on both guide rails are erected on a base. The movable base is provided with a vertical mounting portion and a horizontal mounting portion. A circular guide groove is formed on the back surface, and an annular disc that is rotatably displaceable and has a through hole at the center is attached to the circular guide groove of the mounting portion.

A long hole for mounting the dovetail forming machine having the cutter in a symmetrical position with respect to the through hole at the center of the circular disk is provided for adjusting the position of the machine, and the circular disk is symmetrical about the center at the outer peripheral portion. The dovetail forming machine installed in an eccentric state by inserting a stopper hole in one of these stopper holes and one stopper hole provided in the mounting portion. Is configured to be installed in a reversible manner.

[0004]

However, in the above-described conventional processing machine, the annular disk for mounting and fixing the dovetail forming machine is configured to be rotationally displaced, but the constituting means is the mounting of the annular disk. It is configured to be manually performed when rotating in the circular guide groove of the section. That is, when processing a workpiece, first insert the stopper pin into the stopper hole provided in the annular disc and the stopper hole provided in the mounting portion, fix the dovetail machine to the annular disc and operate it. This is for processing one side of the work material. Then, when processing the other side, the stopper pin is pulled out and the dovetailed processing machine that is fixed is rotationally displaced, the stopper pin is inserted through the other stopper hole and fixed, and the processing on the other side is performed again. It was a thing.

As a result, when the work piece is machined, the dovetailing machine is manually operated, so that when the work piece is switched from one side to the other side, the turning force of the cutter is strong so that the work piece is processed. There was a risk that the end of the processed material would be inadvertently damaged. This means that most of the processed materials used in furniture and joinery in recent years use flash laminated wood (laminated wood made by pressing veneer on both sides of the core material), and when using natural wood. Is limited to expensive furniture. Since flash laminated wood is manufactured by press molding, careless damage accidents easily occur because the processing speed is not constant when processing grooves and dovetails in flash laminated wood as a joining structure for furniture etc. It was a thing. Further, since the switching work of the rotational displacement of the processing machine is also manually performed, there is a problem that the switching work requires time and effort.

Further, a large amount of cutting scraps are generated during the processing of the work material, but the cutting scraps are scattered around the processing machine, which hinders the working operation and cleans the scattered cutting scraps. There was a problem that it took time to work.

[0007]

SUMMARY OF THE INVENTION The present invention is intended to solve the above problems and takes the following means. A first invention that seeks to obtain a patent includes a frame having a bed on which a work piece is placed and fixed, and a first guide rail having a rack portion that faces the frame and is formed in parallel downward. A second guide rail provided between the frame and the movable base and a movable base that moves in parallel on both guide rails are erected on the base, and the movable base has a vertical mounting portion and a horizontal mount. With a mounting part,
A circular guide groove is formed on the back surface of the vertical mounting portion, and a first annular disk, which is rotatably displaceable in the circular guide groove and has a through hole at an eccentric position at the center thereof, is provided via a buffer member. The dovetailing machine having a cutter blade protruding from the through hole at the center thereof toward the frame is attached to the annular disk in an eccentric state, and the dovetailing machine is formed by the rotational displacement of the first annular disk. Installed so as to be rotationally displaceable, and provided with a guide feed mechanism with a rotating shaft having a gear that meshes with the rack portion of the first guide rail attached to the lower surface of the horizontal mounting portion, synchronized with the moving speed of the dovetail forming machine. It is a processing device for dovetail grooves and dovetail projections, characterized in that it is configured to move.

The first aspect of the present invention is characterized in that, in the conventional machining apparatus, the work of rotational displacement of the dovetail machine having a cutter is easily performed, and the moving speed of the movable table to which the dovetail machine is attached. By performing the step at a constant pitch, it is intended to provide a processing device for a dovetail groove and a dovetail projection having a good finished surface. Then, the work safety is enhanced and the work efficiency is enhanced.

As a means for easily performing the rotational displacement of the dovetail machine, the first annular disk is mounted in the circular guide groove of the vertical mounting portion via the buffer member. The 180 degree rotational displacement of the annular member can be facilitated and can be stopped at a predetermined position by the stopper member.

As means of the guide feed mechanism for feeding the movable table at a constant pitch, a rack portion formed downward is formed on the lower surface of the first guide rail, while the lower surface side of the horizontal mounting portion of the movable table is formed. Has a support portion that extends to support the base end portion of the rotary shaft, has a gear that meshes with the rack portion at approximately the middle portion, and has a handle portion that extends outside the base at the tip end portion. It is provided. By rotating this handle part, the gear meshed with the rack part of the first guide rail rotates and guides the movable table so as to move in synchronization with the moving speed of the forming machine. is there. And
The means of the guide feeding mechanism described above has both the function of guiding the movable table by the first guide rail and the function of feeding the movable table at a constant pitch. Note that these functions may be configured separately.

According to a second aspect of the present invention, which is intended to receive a patent, the vertical mounting portion of the movable table is surrounded by a cutter blade projecting toward the workpiece between the vertical mounting portion and the frame, and the cutter blade is provided. The processing device for dovetail groove and dovetail projection according to claim 1, wherein a suction mechanism having a suction port opening toward the front is provided.

According to the first aspect of the present invention, the cutting waste generated and scattered during the processing of the material to be processed is sucked during the processing to improve the efficiency of the processing operation and shorten the cleaning operation. is there. The means of the suction mechanism is configured to open the suction port of the suction mechanism so as to surround this cutter blade in the vicinity of the cutter blade of the dovetail machine, so suck all cutting waste during processing. You can

[0013]

In using the dovetail groove and dovetail projection processing apparatus of the present invention, first, the dovetail machine is fixed to an annular disc, and the annular disc is attached to the circular guide groove of the vertical attachment portion. At this time, the position of the cutter blade of the dovetail machine is also finely adjusted if necessary. Then, the work piece is placed on the bed of the frame, and the height of the bed is adjusted and fixed. When the cutting processing operation is started, the movable table to which the dovetail machine is attached moves at a constant pitch by the rack portion formed on the guide rail while being guided by the guide rail that is the guide feed mechanism. On the other hand, since the cutting waste processed by the cutter blade is sucked by the suction mechanism, the cutting waste does not scatter.

When the machining of one side of the material to be machined is detected by the limit mechanism and completed, the annular disk is manually rotationally displaced to machine the other side, and the movable table is moved back and guided by the guide mechanism. Moving. Therefore, the rotational displacement of the annular disk can be easily performed, and the movable table can be moved at a constant pitch. In addition, since all cutting chips during processing are sucked by the suction mechanism, work efficiency is good,
Cleaning work will also be simplified.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view in which a part of the processing device for dovetail groove and dovetail projection is cut, FIG. 2 is a front view of the device, and FIG. 3 is an enlarged partial sectional view of a main part. FIG. 4 is a perspective view for explaining the guide mechanism, and is a perspective view of the dovetail forming machine as viewed from below. FIG. 5 is a front view illustrating an operating state of rotational displacement. 6 is an explanatory view for explaining the suction mechanism, a front view seen from the frame side, FIG. 7 is a perspective view of a processed material showing a processed state, FIG. 8 is an end view of the processed material,
(A) shows a right side processed surface, and (B) shows a left side processed surface. FIG. 9 is a side view showing the processing state of the material to be processed.
Is a processed material with a thickness of 16 mm, and (b) is a material with a thickness of 12 mm.
Shows the processed material.

In the figure, reference numeral 1 is a base, on which a frame 3 having a bed 2 for fixing a material A to be processed is erected. A handle portion 3a is attached to the upper side of the frame 3, and the pressing member 3b is configured to place and fix the work material A on the bed 2 by rotating the handle 3a. Reference numerals 2a are right-angled rulers mounted on the bed 2, and are mounted on the left and right sides of the bed 2. 2b is a leg for adjusting the height of the bed 2, 2c is a mount for the leg 2b, and 1a is a leg for the base 1. A first guide rail 4 and a second guide rail 5 are laterally bridged on the supporting portions 6 and 7 which are erected on the left and right so as to face the frame 3. A downward rack portion 4a is formed on the lower surface of the first guide rail 4, and a limit portion (not shown) is attached to the end portion thereof.

Reference numeral 8 is a movable table for mounting and fixing the dovetail machine 9, and the movable table 8 is adapted to move in parallel on the guide rails 4, 5. This movable table 8 is the first
Slide on the guide rail 4 of the
It is composed of a horizontal mounting portion 10 having a and 10a and a vertical mounting portion 11 which slides on the second guide rail 5 and has one supporting portion 11a. That is, the movable table 8 is provided on the two guide rails 4 and 5 with three supporting portions 10a and 10 at three points.
It is supported by b and 11a. Vertical mounting part 1 above
1 has a through hole 12 formed in the center thereof, and a circular guide groove 13 is formed in the rear surface thereof so as to sandwich a first annular disc, which will be described later, for rotationally displacing the disc. It is configured.

Reference numerals 14a and 14b denote support portions extending downward in the lower surface portion of the horizontal mounting portion 10. Both support portions 14a and 14b rotatably support both end portions of the rotary shaft 15. There is. Then, the first portion is provided at the substantially middle portion of the rotary shaft 15.
A gear 16 that meshes with a rack portion 4a formed on the guide rail 4 is attached, and a handle portion 17 extended to the outside of the base 1 is attached to the tip end portion thereof.

Therefore, by manually rotating the handle portion 17, the gear 16 meshed with the rack portion 4a formed on the first guide rail 4 is rotated, and the movable table 8 is moved together with the dovetail machine 9 together. A guide feed mechanism is configured to slide on both guide rails 4 and 5 at a constant pitch.

Reference numeral 18 denotes a circular guide groove 13 of the vertical mounting portion 11.
Is a first annular disc mounted on the center of the first annular disc 18, and the cutter blade 9a of the dovetail machine 9 is
A first through hole 19 for guiding the is formed at an eccentric position. Reference numeral 20 is a cushioning member capable of easily rotationally displacing the first annular disk 18, and is provided between the circular annular guide groove 13 and the circular guide groove 13. 21 is the first circular disk 1
8 is an annular ring for attaching 8 to the vertical attachment portion 11, and also has a function of facilitating the rotational displacement of the first annular disc 18 together with the above-mentioned cushioning member 21.

A cutter blade 9a is removably attached to the tip of the dovetail shape machine 9, and the body of the machine is fixed to a mounting portion at the inner peripheral portion of a second annular disk described later. 9b is a grip part.

Reference numeral 22 is a second annular disk, and this disk 2
A second through hole 23 for guiding the cutter blade 9a is bored in 1 for directly attaching and fixing the dovetail machine 9 and fixing it to the first annular disk 18. A mounting portion 24 for mounting and fixing the dovetail machine 9 is formed on an inner peripheral portion of the annular disc 22, and a second annular disc 22 is formed on the outer peripheral portion thereof in a circular shape of the first annular disc 18. An attaching portion 25 for attaching to the guide groove 13 is formed.

Reference numeral 26 is an elongated hole for finely adjusting the second annular disk 22 with respect to the first annular disk 18, and the elongated hole 26 is formed in the through hole 19 formed in the first annular disk 18. As shown in FIG. 3 and FIG. 6, elongated holes 26a and 26b for attachment, which extend in the radial direction, are provided at symmetrical positions. Further, although not shown, a stopper member is attached to the second annular disk 22, and the second annular disk 22 is rotationally displaced every 180 degrees so that the cutter blade can be eccentric. There is. For that purpose the second annular disc 2
Since the second through hole 23 at the center of 2 is formed at the eccentric position, when the first annular disk 18 is rotationally displaced, the cutter blade 9a of the dovetail machine 9 is shown in FIG. It is displaced to the dotted line position 9a 'shown. The mounting position of the cutter blade 9a can be finely adjusted by the long holes 26a and 26b.

It should be noted that the dovetail projection of the work material A is usually the right work surface A in the sense that the directionality such as top and bottom and left and right is maintained.
The a and the left processing surface Ab are processed by displacing the axis of symmetry with respect to the plate thickness as shown in FIGS. The processed material A shown in FIG. 8 is a material to be processed having a plate thickness of 16 mm to 24 mm, and the dovetail projections are 7.5 mm from the center S thereof.
The protrusions have a width of mm, and the protrusions have a width of 15 mm as a whole. A work material having such a plate thickness and a dovetail shape is mainly used for large furniture, fittings, and the like.

The side view shown in FIG. 9 shows the processing state of the material to be processed. (A) shows a processed material having a plate thickness of 16 mm, and (b) shows a processed material having a plate thickness of 12 mm. There is.
In the case of processing the work material A1 having a thickness of 16 mm shown in (a), the dovetail projections are formed from the center S of the projections 6 mm wide and 12 mm wide as a whole.
In this case, since the plate thickness of the material to be processed is 16 mm, the material to be processed is placed and fixed on the bed 2 together with the packing member C1 of 3 mm for processing.

Further, when processing the work material A2 having a plate thickness of 12 mm shown in (B), the dovetail projection has a center S
From the above, protrusions B1 each having a width of 3 mm and having a width of 6 mm as a whole are formed. In this case, the thickness of the work piece is 12
Since it is mm, the packing member C is 6 mm when processing.
Placed and fixed on bed 2 together with 2. Therefore, if a predetermined packing member is used, the total thickness D becomes constant, and it becomes easy to set the position of the projecting center S with respect to the cutter blade of the dovetail forming machine.

The material to be processed on which the protrusions B1 having a width of 12 mm are formed is mainly used for medium-sized furniture or fittings, and the material having a thickness A1 of 16 mm is used in addition to the material to be processed of 12 mm. It can also be used for processed materials. Further, the work piece on which the protrusion B2 having a width of 6 mm is formed is mainly formed on relatively small furniture such as a needle box or a mirror stand, and has a plate thickness A2 of 12 m.
In addition to the work material of m, the work material of 6 mm or 9 mm can be used.

The packing member C is used in the cutting process because it is time-consuming to adjust the position of the cutter blade for each processing operation when adjusting the positional relationship between the projecting center S of the workpiece A and the cutter blade. This is because it takes a lot of work, but the work of adjusting the position according to the plate thickness of the work material A does not take much time. Therefore, it is possible to easily perform the cutting work without adjusting the position of the cutter blade of the dovetail forming machine simply by preparing several kinds of packing members according to the plate thickness of the workpiece.

Reference numeral 28 is a suction mechanism, and this suction mechanism 28
Is disposed between the vertical mounting portion 11 and the frame 3, as shown in FIGS. 1, 3 and 6. In the embodiment shown in FIG. 6, a suction port 29 is arranged in the immediate vicinity of the cutter blade 9a of the dovetail machine 9 so as to surround the periphery of the cutter blade 9a, and the suction hose 30 thereof has a base 1 It is configured to be disposed on the lower side. Reference numeral 31 is a drive pump for suction, which collects cutting chips by machining and collects them in a suction bag 32. Further, the suction port 29 is formed of a transparent acrylic plate, and the worker can proceed with the work while visually recognizing the processing state by the cutter blade 9a. The upper cover portion 29a of the suction port 29 can be opened and closed, and cleaning work and inspection work are easy.

Therefore, when the work material A is machined and cut by the dovetail machine 9, the movable table 8 to which the dovetail machine 9 is attached has the first guide rail 4 and the first guide rail 4 which are guide feed mechanisms. It is guided by two guide rails 5. At this time, since the gear 16 extending downwardly from the lower surface of the horizontal mounting portion 10 and attached to the horizontal mounting portion 10 meshes with the rack portion 4a of the first guide rail 4, these gears are provided by these guide feeding mechanisms. The movable table 8 moves in parallel at a constant pitch in synchronization with the rotational movement speed of the shaping machine 9.

The movable table 8 is the end of the guide rail,
That is, when the end of the one processing surface of the set work material A is machined, the limit switch mounted on the horizontal mounting portion 10 and the limit portion mounted on the first guide rail 4 come into contact with each other. Then, it is detected visually and electrically that the machining end is reached, and the rotational displacement of the first annular disk 18 becomes possible, and then the machining of the other machining surface of the workpiece A is started.

At the time of these cutting processes, the suction mechanism 2 is always provided.
Since the work piece 8 is operating, the cutting debris resulting from the processing passes through the suction hose 30 and is collected in the suction bag 32, so that the cutting debris does not scatter around.

In the above embodiment, the rotational displacement operation of the annular disk is configured to be performed manually, but the movable table, the guide rail, etc. are provided with the start and end point detection switches, etc. The drive motor may be operated by switching these switches to automatically operate the rotational displacement of the annular disk. Further, the guide feeding mechanism may also be configured to automatically operate.

[0034]

According to a first aspect of the present invention, a frame having a bed on which a material to be processed is placed and fixed, and a rack portion facing the frame and formed in parallel and downward are provided. 1 guide rail, a second guide rail provided between the frame and the movable base, and a movable base that moves in parallel on both guide rails are erected on the base, and the movable base is mounted on the movable base. Is provided with a vertical mounting portion and a horizontal mounting portion, and a circular guide groove is formed on the back surface of the vertical mounting portion, and the circular guide groove is rotatably displaceable and a through hole is formed at an eccentric position at the center thereof. The first annular disk is attached via a cushioning member, and the dovetail forming machine having a cutter blade projecting from the through hole at the center toward the frame is attached to the annular disk in an eccentric state. For the rotational displacement of the circular disk of A dovetail forming machine is installed so that it can be rotationally displaced, and a guide feed mechanism is attached to the lower surface of the horizontal mounting part, which has a rotating shaft with a gear that meshes with the rack part of the first guide rail. It is a processing device for dovetail groove and dovetail projection, characterized in that it moves in synchronization with the moving speed of the machine.

Therefore, in the conventional machining apparatus, the work of rotational displacement of the dovetail machine having a cutter is automatically performed, and the machining speed of the movable table to which the dovetail machine is attached is set to a constant pitch, thereby performing machining. It is possible to provide a processing device for a dovetail groove and a dovetail projection having a good surface finish. Then, the work safety is enhanced and the work efficiency is enhanced.

A second aspect of the present invention, which seeks to receive a patent, encloses a cutter blade projecting toward a workpiece between the vertical mounting portion of the movable table and the frame, and at the same time, encloses the cutter blade. The processing device for dovetail groove and dovetail projection according to claim 1, further comprising a suction mechanism having a suction port opening toward the front.

Therefore, by sucking the cutting dust generated and scattered during the processing of the material to be processed during the processing, the efficiency of the processing work and the cleaning work can be shortened.

[Brief description of the drawings]

FIG. 1 is a side view in which a part of a processing device for dovetail groove and dovetail projection is cut.

FIG. 2 is a front view of the same device.

FIG. 3 is an enlarged partial sectional view of a main part.

FIG. 4 is a perspective view illustrating a guide mechanism, and is a perspective view of the dovetail forming machine as viewed from below.

FIG. 5 is a front view illustrating an operating state of rotational displacement.

FIG. 6 is a front view illustrating a suction mechanism as viewed from the frame side.

FIG. 7 is a perspective view of a processed material showing a processed state.

FIG. 8 is an end view of a processed material, (a) shows a right side processed surface, (b) is a left side processed surface and has a plate thickness of 16 m.
The processed material of m to 24 mm is shown.

FIG. 9 is a side view showing a processed state of a material to be processed, (a) shows a processed material having a plate thickness of 16 mm, and (b) shows a processed material having a plate thickness of 12 mm.

[Explanation of symbols]

 1 Base 3 Frame 4 First Guide Rail 4a Rack Section 5 Second Guide Rail 8 Movable Platform 9 Dovetailing Machine 9a Cutter Blade 10 Horizontal Mounting Section 11 Vertical Mounting Section 13 Circular Guide Groove 16 Gear 18 First Annular Disk 22 Second annular disk 26 Long hole 28 Suction mechanism A Workpiece S Center

Claims (2)

[Claims] 1. A frame having a bed on which a workpiece is placed and fixed, a first guide rail having a rack portion formed in parallel and facing downward while facing the frame, the frame and a movable base. A second guide rail provided between the two guide rails and a movable base that moves in parallel on both guide rails are erected on a base, and the movable base is provided with a vertical mounting portion and a horizontal mounting portion, A circular guide groove is formed on the back surface of the vertical mounting portion, and a first annular disk, which is rotatably displaceable in the circular guide groove and has a through hole at an eccentric position at the center thereof, is provided via a buffer member. The dovetailing machine having a cutter blade protruding from the through hole at the center toward the frame is attached to the annular disk in an eccentric state, and the dovetailing machine is formed by the rotational displacement of the first annular disk. Installable for rotational displacement Then, a guide feed mechanism having a rotating shaft having a gear that meshes with the rack portion of the first guide rail is provided on the lower surface of the horizontal mounting portion to move in synchronization with the moving speed of the dovetail forming machine. A processing device for a dovetail groove and a dovetail-shaped projection. 2. A suction mechanism in which a vertical mounting portion of the movable table is surrounded by a cutter blade projecting toward a workpiece between the vertical mounting portion and the frame, and a suction port is opened toward the cutter blade. The processing device for dovetail groove and dovetail projection according to claim 1, wherein the device is provided.