JPS5915043B2 - wood processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wood processing machine that performs cutting operations such as dovetail processing, dovetail groove processing, and dovetail groove processing in order to join pieces of wood together.

Generally, when joining wood such as a small beam, force joist, or joist to wood such as a second-story beam, various cutting processes such as dovetail processing, dovetail processing, and even dovetail groove processing are applied to the dovetail hook. The wood is joined together.

Traditionally, this kind of cutting has been done manually using a hand saw or by hand, or simply using a router that rotates the machining blade, so-called pit, with a motor. Cutting with a router is time-consuming and troublesome, and cutting with a router is hand-held, making it impossible to obtain high-precision cutting, and accidents such as injuries to hands and feet in the pit occur. Not only is it extremely inconvenient to use due to the risk of causing damage, but also there are various problems such as the need to replace the pit each time depending on the type of cutting process, which is inconvenient.

Therefore, the present invention has been made in view of the above circumstances, and is a wood processing machine that is attached to a workpiece and can be moved and adjusted in three directions with respect to the workpiece, and includes a blade arbor driven by a motor. A router pit is attached to both ends, and the blade arbor is rotated together with a motor depending on the type of cutting process, and the router pit is used as appropriate. The present invention also provides a wood processing machine which is capable of keeping the direction of rotation of the router pit constant at all times and is extremely convenient to use.

An embodiment of the wood processing machine according to the present invention will be described below based on the drawings.

In Fig. 1 showing the processing machine main body A, 1 is a cylindrical motor case, 2 is a motor cover attached to one opening side of the motor case 1, and the end surface thereof is shown in Fig. 2. It is equipped with an air hole to allow motor cooling air to pass through.

A belt cover 3 having air holes is attached to the other open side of the motor case 1.

An armature 8 and a blade arbor 9 of a motor M are supported in the motor case 1 and motor cover 2 in parallel and rotatably by ball bearings 4,5,6°7.

A stator 10 such as a field coil of the motor M is attached to the inner surface of the motor case 1, and an operation switch sw1 of the motor M is also attached to the motor case 1.

Pulleys 11 and 12 are provided at one end of each of the rotary shaft of the armature 80 and the blade arbor 9, and each pulley 11
．． The blade arbor 9 is driven and rotated by a motor M with a belt 13 hooked around the blade arbor 12.

On the other hand, both ends of the blade arbor 9 are made to protrude outward from the motor cover 2 and the belt cover 3, respectively, and various bits such as a flat bit 14 and a dovetail bit 15 can be replaced at each end with collet chucks 14a and 15a. It can be attached and detached freely.

The motor case 1 has a spring 1 as shown in FIG.
At the same time, a stopper button 17 elastically biased by the spring 16 is attached, and a fitting hole 18 is formed in the blade arbor 9, and the tip of the stopper button 17 is inserted by pressing the stop button 17 against the bias of the spring 16. The blade arbor 9 is fitted into the hole 18 to stop the rotation of the blade arbor 9 so that the bit can be replaced.

The motor case 1 has a slide plate 19 as shown in FIG.
It is attached so that it can rotate as appropriate.

That is, the center bolt 20 is passed through the peripheral wall of the motor case 10 and fitted into the square hole of the slide plate 190, so that the motor case is rotatably supported by the slide plate 19 and the center bolt 20.

Moreover, this center bolt 20 is provided with a tightening screw 2 that passes through a vertical window of a left and right sliding base 21 and is provided with a knob 23.
2 are screwed together, and the slide plate 1 is tightened by tightening the tightening screw 22.
The motor case 1 is fixed to the slide plate 9, and the motor case 1 can be rotated relative to the slide plate 19 by loosening the tightening screw 22.

Further, for the tightening, a cylindrical tightening nut 24 is screwed into the male threaded portion 26 of the screw 22, and a lever bundle 25 is provided on the nut 24 for this tightening.

This lever bundle 25 can be tightened by screwing the nut 24 into the screw 22 and press-fitting it to the opening edge of the vertically long window 21a of the left-right sliding base 21, so that it slides against the left-right sliding base 21. By fixing the plate 19 and loosening it again, the slide plate 19 is unfixed, and as it is further loosened, it comes into frictional contact with the knob 23, and the tightening is done by screwing the screw 22 and tightening the slide plate 19. The motor case can be unlocked and rotated.

A cover holder 27 is fixed to the slide plate 19, and a blade cover 28 is attached to the cover holder 27, which can be opened and closed to cover one of the router bits that is not used.

Even when the blade cover 28 is open, when the motor case 1 is rotated, the cover 3 and the motor cover 2
etc., so as not to come into contact with other members.

Furthermore, a lock plate 29 and a limit lever 30 are fixed to the slide plate 19 as shown in FIGS. 1 and 3, and the lock plate 29 contacts the motor case to define the rotation angle of the motor case 1. Two regulation pins 31 and 31' such as hexagonal bolts are provided so as to be removable and removable, and two limit switches SW2. SW3 is the default.

By moving the regulation pins 31° and 31' in and out, the rotation angle r, that is, the amount of rotation, of the motor case 1 can be adjusted.

Matariζtsuitutes'w2. S'w3 comes into contact with the limit lever 30 when the regulation pins 31, 31' and the lock plate 29 come into contact with each other, and performs a switching operation as described later.

The above-mentioned processing machine main body A handles the workpiece 3 when performing cutting processing.
It is supported by vice mechanism B so as to be movable in three directions mutually perpendicular to 2.

To explain this vice mechanism B, as shown in FIGS. 4 and 5, a workpiece 32 is clamped between a vice 33 and a clamp mechanism 50 provided at the supporter. Guy 1 and par 3 between both ends of 34
5 and 35 are interposed therebetween, and has a front and rear sliding base 36 which is slidable along the guide bars 35 and 35.

Also, side plates 37° 37 are attached to both ends of the vise 33 and the supporter 340, and are equipped with rollers 37' and 37', which are flush with the contact surface of the workpiece and can be moved freely on the upper surface of the workpiece 32. It is.

The vise 33 and supporter 34 have front and rear wrought parts...endor 39
A front-rear feed screw 38 is rotatably supported, and the front-rear feed screw 38 is screwed into a front-rear sliding base 36.

Front and back sliding bases 36 are installed at appropriate locations for the front and rear feed screws 38.
It has a stopper 40 that defines a selected corner point.

,' As shown in FIG. 6, two left and right guide bars 41 and 41 are fixedly installed on the front and rear sliding base 36 and are perpendicular to the front and rear guide bars 35 and 35.
, <-41, left-hand sliding base 2 that can be moved along 41
1, and the left and right sliding base 21 has a front and rear sliding base 3.
A left-right feed screw 43 having a left-right feed bundle 42 rotatably supported by the left-right feed bundle 42 is screwed into the left-right feed screw 43 .

The left and right sliding bases 2 are installed at appropriate locations on the left and right feed screws 43.
It has a stopper (not shown) that defines one feed corner point.

As mentioned above, this left and right sliding base 21 has a slide plate 19.
Furthermore, a groove 44 is provided in a direction perpendicular to the sliding direction of the sliding base 21, and the groove 44 is movably engaged therein.

A vertical feed screw 46 equipped with a vertical feed nozzle 45 is rotatably supported on this slide plate 19 while preventing movement in the axial direction. The slide plate 19 is screwed together to move up and down.

As shown in FIGS. 7 and 8, the slide plate 19 is provided with a through hole 47 and a stopper plate 48 pivotally attached to the through hole 47 so as to be openable and closable.
A first stopper pin 49 is erected in such a manner that its height can be freely adjusted.
A second stopper pin 49a is coaxially and height-adjustably screwed into the screw hole of the first stopper pin 49.

The first stopper pin 49 is formed to have a larger diameter than the through hole 47, while the head 49 of the second stopper pin 49a
b is formed to have a smaller diameter than the through hole 47 described above.

Thus, when the slide plate 19 is lowered, when the through hole 47 is closed by the stopper plate 48, the head 49b of the second stopper pin 49a comes into contact with the stopper plate 48, and when the through hole 47 is opened, The peripheral edge of the through hole 47 and the first stopper pin 49 come into contact with each other, forming a so-called switchable two-stage stopper mechanism, thereby making it possible to change the depth of the cutting process at any time.

The front and rear sliding bases 36 and the side plates 37 are provided with scale plates 51 and 52 with movement distances marked thereon. Needless to say, a scale indicator needle is provided at the front and rear sliding bases 36, and a center indicator needle 63 facing the bit center of the processing machine main body A is provided at the center of the front and rear sliding base 36.

As shown in FIGS. 4 to 6, the clamp mechanism 50 has a hole formed in the supporter 34 parallel to the front and rear guide bars 35, and is slidable in the hole, with holders 53 and 53 at both ends.
Outer vise guide bar 54.54 connected and fixed at 53
have.

An inner vise guide bar 56,56 for sliding the vise holder 55 is fixed in the center of the holder 53,53, and sliding and fixing of the outer vise guide bar 54,54 to the supporter 34 is done by tightening and loosening wing bolts 57. This is done by

Further, sliding of the vise holder 55 is prevented by tightening the holder 53 and one of the inner vise guide bars 56 by tightening a butterfly bolt group.

The vise holder 55 has a chuck holder 59, and the chuck holder 59 can be slid in a direction perpendicular to the workpiece 32 by rotating the vise bundle 60, and the chuck holder 59 has a screw-in type. It has a clamp plate 62 to which the workpiece 32 is crimped by rotating the knob.

A fan for cooling the motor is attached to the armature 8 as shown in FIG. It is provided to be discharged to the bit side, so that cutting waste generated when machining a dog holder or the like with the bit in use can be removed by motor cooling air.

As a result, side play occurs on the upper surface of the workpiece 32)37.
37', clamp the workpiece 32 between the vise 33 and the clamp plate 62 by operating the vice grip 60, and place the processing machine main body A at a predetermined position on the upper surface of the workpiece 32.
to be fixed.

Next, move the motor M and the blade arbor 9, that is, the processing machine main body A, to the front (downward in FIG. 4) using the forward/backward feed bundle 39, loosen the lever/handle 25, and use the vertical feed/handle 45. The slide plate 19, that is, the processing machine main body A, is lowered relative to the left-right sliding base 21, thereby feeding the router bit 14 or 15 to the depth of cut, and then tightened by the lever bundle 25 to slide the processing machine main body A left and right. It is fixed to the moving base 21.

When the operation switch SW1 is turned on in this state, the motor M is driven to rotate the router pins N4 and 15, and the required amount of cut, such as the depth of cut and width of the cut, is made by feeding the front and rear feed bundles 34 and the left and right feed bundles 42. Perform cutting.

However, the router bits 14 and 15 are changed depending on the machining process and the type of cutting process such as large-scale machining, but in this case, loosen the lever bundle 25, and then
3, the center bolt 20 is loosened by the screw 22, and then the processing machine main body A is rotated 180 degrees with respect to the slide plate 19, that is, the left and right sliding base 21, and then the tightening is done using the screw 22 and When the lever bundle 25 is tightened, the previously used bit is stored in the blade cover 27, while the previously used bit is stored in the blade cover 27 from the motor case 1.
The bits stored inside are exposed and can be used.

When switching bits like this, one of the limit switches Sw2. Sw3 and the limit lever 30 come into contact, and the limit switch S'w2. SW3 performs a switching operation to reverse the rotational direction of the motor M.

To explain this, when the processing machine body is being rotated, both limit switches S'w2. Since s'w3 is in the connected state as shown in FIG. 9, the motor M is not energized and is stopped.

From this state, when the processing machine body is rotated 180 degrees, SW2 switches due to contact with the limit lever 30, and power is supplied to the armature 8 from the power plug P via the operation switch S'w1 and the limit switch Sw3. , amateur 8 limit switch Sw2, field coil 10
A circuit is formed in such a way that the power supply plug P is connected via the operation switch sw1.

When the processing machine body A is further rotated by 180 degrees, the limit switch Sw2 returns to the connected state as shown in FIG. 9, and at the same time, the limit switch Sw3 switches from the connected state shown in FIG. 9 to the other contact. do.

For this reason, power is supplied from the power plug P to the armature 8 via the operation switch Sw1 and the limit switch KO, and further from the armature 8 to the power plug P via the limit switch S'w3 and the field coil 10, the operation switch sw1. Therefore, each time the processing machine main body A, that is, the motor case 1 is rotated, the connection state of the armature 8 to the field coil 10 is reversed, and the direction of rotation thereof is also reversed accordingly.

In this case, the motor case 1, that is, the blade arbor 9 is
Since the bits are used by being reversed by 0°, the bits to be used, that is, the bits being machined, always rotate in the same direction even if the rotation direction of the motor M is reversed or forward.

In the above embodiment, a commutator motor is used as the motor M, but it goes without saying that any motor may be used as long as the direction of rotation is reversed by the switching operation of the limit switch SW21S'w3. be.

As explained above, according to the wood processing machine according to the present invention,
In a wood processing machine in which a processing machine main body A is freely movable in three directions so that it can be attached to a workpiece 32 and the cutting position can be adjusted with respect to the workpiece 32, both ends of a blade arbor driven by a motor are used. A router bit is attached to the machine, and the machine body A is rotated to use the router bit as appropriate depending on the type of cutting process.
By rotating the processing machine body A to use each bit properly, the rotation direction of the router bit can be maintained constant even by rotating the blade arbor without requiring any switching operations. It has the advantage of being extremely convenient to use.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of the main body of the wood processing machine according to the present invention, Fig. 2 is a half-sectional bottom view thereof, Fig. 3 is a sectional view of the main part of Fig. 1, and Fig. 4 is the same processing machine. Fig. 5 is a side view, Fig. 6 is a front view, Fig. 7 is a plan view of the main body of the processing machine, Fig. 8 is a side view showing the main parts, Fig. 9 is a motor circuit. FIG. 9...Blade arbor, 14,15...
...Router bit, 32... Work material, A.
... Processing machine body, M ... Motor, S'w
2. sw3...Limit switch, B...
...Vise mechanism.

Claims (1)

[Claims] 1. A wood processing machine that can be mounted on a workpiece using a vise mechanism, and the cutting position can be adjusted with respect to the workpiece. The processing machine main body is formed with a blade arbor driven and rotated by a motor, and both bits attached to both ends of the blade arbor are rotatably supported in the vice mechanism so as to be selectively usable. Interlocking with the rotation of the processing machine main body, a switch mechanism is interposed so that power to the motor is cut off during rotation, and the direction of rotation of the motor is reversed when setting forward and reverse rotation. A wood processing machine characterized by: