JPS5820323Y2 - Processing machine for wood joints in wooden buildings, etc. - Google Patents

Description

[Detailed description of the invention] This invention relates to joints for joining pieces of wood in the longitudinal direction and shikiguchi for joining pieces of wood in a crosswise manner in wooden buildings, furniture, fittings, etc. The present invention relates to a processing machine for forming a housing and a handle hole for fitting the housing.

Conventionally, there is a delivery machine as this type of processing machine, but this machine can cut wood into paulownia, dori, and other types by changing the cutter.
It can be made by processing various types of paulownia, such as Kamano.
It is impossible to manufacture a handle hole for inserting paulownia wood, and for this reason, the current situation is that the manufacture of the handle hole relies on other machines, such as a corner chisel machine.

This requires at least two machines to manufacture a joint for joining wood, and furthermore, the operation thereof requires considerable skill and is inefficient.

Furthermore, when machining a handle hole using a corner chisel, it is impossible to finish the bottom of the hole, so further corrections may be made by hand after machining, which complicates the work.

Furthermore, since it is difficult to process items with relatively complex shapes such as dovetail wood and sickle handles in one step, the processing tool (knife) may need to be replaced or the workpiece may be re-clamped. Since the position of the handle is changed, the position of the handle may be shifted, resulting in a handle and handle hole with poor precision, and various other drawbacks.

The purpose of the present invention is to eliminate the above-mentioned conventional drawbacks, to enable processing of the handle and handle hole with high efficiency and high precision by one machine, and to process the handle and handle hole with the tool to be machined.
An object of the present invention is to provide a processing machine for processing wood joints in wooden buildings, etc., in which a moving means for a cutter (cutter) has a simpler structure and a wider range of movement.

Hereinafter, the illustrated embodiment embodying the processing machine of the present invention will be described in detail. In the figure, 1 is a bed of the processing machine of the present invention;
A part of the bed 1 extends upward to form a table 2 on which the workpiece W is placed, as shown in FIGS. It is erected in an integrated manner.

A dovetail 4 is formed in the vertical direction on one side of the column 3, and an elevating body 5 is installed on the dovetail 4 so as to be movable up and down via a dovetail groove 5a.

Further, a box-shaped gear box 6 is installed at the upper end of the column 3, and inside the gear box 6, a lifting screw 7 having a threaded portion carved on the inner diameter and a bevel gear on the outer diameter rotates. The gearbox 6 also has a handle 8.
An elevating handle shaft 9 having an elevating handle shaft 9 is rotatably supported horizontally, and a bevel gear 10 meshed with the bevel gear of the elevating screw 7 is attached to an end of the elevating handle shaft 9.

A lifting threaded rod 12 is erected on the upper surface of the lifting body 5 via a bracket 11, and the substantially upper end of the lifting screw 12 is screwed into the threaded portion of the lifting screw 7. ing.

Thus, the elevating body 5 is moved up and down integrally with the elevating threaded rod 12 by the rotation of the elevating handle shaft 9 and the rotation of the elevating screw 7.

As shown in FIG. 4, the elevating body 5 rotatably supports a turning shaft 16 having cylindrical holes 13 and 14 on the front and rear sides and having a handle 15 in the boss portion. A worm 17 is attached to the end facing the surface of the cylindrical hole 13 on the front side.

The rotating body 1 is inserted into the front and rear cylindrical holes 13.14.
8 is installed, and this rotary body 18 is rotatably supported in the cylindrical hole 13 on the front side, has a worm wheel 19 on the outer periphery that meshes with the worm 17, and has a disk shape with an insertion hole 20 formed in the center. The front rotating body 21 and the rear cylindrical hole 14
a disk-shaped rear rotary body 23 rotatably supported within and having an insertion hole 22 penetrated through the center; and both rotary bodies 21.2.
It is composed of upper and lower connecting members 24 and 25 that connect 3.

Therefore, the rotating body 18 is rotated by the rotation of the rotating shaft 16.
Worm wheel 1 of the worm 17 and the front rotating body 21
It is rotated through 9.

A long cylindrical cutter shaft support case 26 is installed horizontally on the lower connecting member 25 of the rotating body 18 with bolts B, and the front and rear sides of this support case 26 are connected to the front and rear sides of the rotating body 18. They are loosely inserted into the insertion holes 20.22 of the rotary bodies 21.23 and protrude toward the table 2 and away from the table, respectively.

The cutter shaft support case 26 is configured so that the turning radius of the cutter shaft, which will be described later, can be adjusted using an adjusting screw means 27.

The cutter shaft 28 is rotatably supported within the cutter shaft support case 26, and both ends of the cutter shaft 28 extend from the support case 26. A cutter 30 is attached so as to be replaceable with a cutter corresponding to the hole and handle hole to be processed,
A pulley 31 is attached to the shaft end on the rear side, that is, the side opposite to the table, and a swinging arm 32 hangs down so as to be swingable on the same axis, and the lower end of this swinging arm 32 is fixed on the bed 1. A swing arm 35 is connected to one end of a swing arm 35 horizontally pivoted on a motor shaft 34 of a motor 33 via a support shaft 36, and a pulley 37 of the motor shaft 34, a pulley 38 of the support shaft 36,
38a, a bell 39, 39a is stretched between the pulleys 31 of the cutter shaft 28 along the swinging arm 32.35.

Thus, the carter shaft 28 is connected to the belt 39 from the motor 33.
39a, and is further rotated together with the rotating body 18 about the same center of rotation of the rotating body 18.

403 to 40C are automatic centripetal vertical/horizontal vises installed on the top surface of the table 2 to clamp and fix the workpiece, and are installed at both left and right ends and the front of the table 2. Two vice claws are provided facing each other.

41 is a screw shaft with a right-handed thread on one side from the center and a left-handed thread on the other side, both ends of which are screwed into the vise claws provided opposite each other; Operating handles 42-42 are attached to one end of the shaft 41.

In addition, the two horizontal vises 40 a and 40 b and one vertical vise 40 C shown in the figure are the workpiece W 1 as a whole.
．． The center position of W2 can be changed in relation to the cutter 30.

Further, in the figure, reference numeral 43 denotes a stopper for positioning the workpiece W2 in the longitudinal direction, and the stopper is mounted on the elevating body 5 so that its position can be adjusted.

The processing machine of this embodiment is constructed as described above, and its operation will be explained below.

First, a workpiece is held on the table 2 prior to cutting by the cutter 30.

That is, when cutting the lateral part of the workpiece W1, the workpiece W1 is placed horizontally on the table 2 as shown in FIGS. 1 to 3, and two horizontal vises 40 are used. a,
When the workpiece W1 is placed between the two opposing vise claws of 40b and the operating handles 42 and 42 of the screw shaft 41 are rotated, the two opposing vice claws face each other and advance to move the workpiece W1. Pinch and secure.

When cutting the end of the workpiece, the workpiece W2 is placed vertically between the vertical vise claws at the front of the table 2, as shown in FIGS. 2 and 3. The screw shaft 41 is rotated by contacting the stopper 43 in the same manner as described above, and fixed by the vise 40C.

When cutting a handle hole h1 on the side of the workpiece W3 to be used as a joint for large insertion as shown in FIG.
The cutter 30 is fixed in a horizontal position on top and the cutter 30 has a rotated outer shape, that is, a rotation locus as shown in the figure, and the cutter 30 is placed in the chuck 29.
After the cutter 30 is attached to and positioned below the workpiece W3, it is positioned so that the front end of the cutter 30 intersects the workpiece W3 by the depth of the handle hole h1 to be machined.

Therefore, the motor 33 is started to rotate the cutter 30, and the lifting handle shaft 9 is also rotated to raise the cutter shaft support case 26 together with the lifting body 5. After cutting W3 to a predetermined depth, lower the cutter shaft support case 26 together with the elevating body 5 and return it to its original position.
The machining of the handle hole h1 shown in FIG. 6 is completed.

Next, as shown in FIG. 7, I? '
To explain the case of cutting 3H, first,
A cutter 30 as shown in the figure is installed, and a turning radius around the center of rotation of the rotating body 18 of the cutter 30 is set.

That is, as shown in FIG. 5, after setting the cutter shaft support case 26 by moving it left and right as shown in FIG. Then, the cutter shaft support case 26 is placed relative to the connecting member 25 below the rotating body 18.

As shown in FIG. 1, the cutter 30 is positioned below the table 2 and on the horizontal line of the center of rotation (9 o'clock position on a clock).

Then, the workpiece W4 is replaced with the workpiece W4 shown in FIGS. 2 and 3.
As shown in 2, paulownia H to be placed on table 2 and processed.
After positioning the end surface of the workpiece W4 by abutting it against a stopper 43 set at a length corresponding to the position of the cutter 30, the workpiece W4 is fixed by a vertical vise 40C.

In this case, the width center of the workpiece W4 and the turning center of the cutter 30 are made to coincide.

Therefore, when the cutter 30 is raised to a predetermined position by turning the lifting handle shaft 9 as described above, the cutter 30
Cuts the straight part on the right side of W'r H1 shown in FIG.

Then, when the turning shaft 16 is rotated, the rotating body 18 is rotated with respect to the elevating body 5, so that the cutter shaft support case 26 is rotated at the set turning radius around the rotation center of the rotating body 18. Rotate 180° clockwise.

In this state, the cutter 30 cuts the circular arc portion of the paulownia H1 shown in FIG.

Next, when the lifting handle shaft 9 is rotated in the opposite direction to that described above and the lifting body 5 is lowered to the original position, the cutter 30 is moved to the seventh position.
Cut the straight portion on the left side of the treetop H1 shown in the figure.

In other words, the cutter 30 draws an inverted U-shaped movement trajectory that combines a linear upward movement, an arc movement at that position, and a linear downward movement.
Paulownia H1 shown in the figure can be cut.

This hole H1 corresponds to the handle hole h0 described above.

In addition, when processing similar W'r H1, paulownia wood H1 of the same size can be processed continuously by moving the cutter 30 in the reverse direction of the above-mentioned movement locus.

In addition, when forming hH2 to be used as a dovetail joint as shown in FIG. 8 on the end face of the workpiece W5 by cutting, use the cutter 30 whose rotation locus is in the shape of an inverted cone, and use the same method as above. The cutter 30 may be moved in an inverted U-shape to perform cutting.

Furthermore, when cutting a handle hole h2 to be used as a dovetail joint as shown in FIG. 9 on the end face of the workpiece W6, a cutter 30 whose rotation locus is in the shape of an inverted cone is used. , in this case vertical vise 40C
In order to align the center of the vertical vise 40C with the center of the cutter 30, move the entire vertical vise 40C to the left from the state shown in FIG. Then, the center of the workpiece W6 and the center of the cutter 30 coincide.

Therefore, the paulownia hole h2 as shown in the figure is cut in the same manner as in the case of the machining shown in FIG. 6 described above.

Note that the displacement direction of the vertical vice 40C may be to the right in the figure, in which case it is the downward position when the cutter 30 moves in an inverted U shape when processing the workpiece W4 shown in FIG. 7 described above. Cutting is performed at

This handle hole h2 corresponds to the above-mentioned hole H2.

It should be noted that machining a handle hole with a size larger than the diameter of the cutter 30 can also be easily done by using the movement locus of the cutter 30 described above.

In addition, in the above-mentioned embodiment, the handle for the workpiece,
Machining of the handle hole is a process in which the cutter 30 ascends, that is,
Although the cutter 30 is positioned below the workpiece to start processing, it can also be easily applied by reversing the processing method, and in this case, the assembly of the handle and handle hole is performed using the same processing procedure as before. It has the advantage that it is easy for the operator to perform the work intuitively.

Raising the cutter 30, setting the turning radius R and the cutter work start position can be easily done by using scales, markings, stoppers, etc., and the lifting handle shaft 9 and turning shaft 16 can be easily set. It may be operated using a power means such as electric, and the vertical movement (vertical movement) of the elevating body 5
It is also possible to automate the process using a power-driven means such as a fluid pressure cylinder.

Further, the motor 33 that drives the cutter 30 may be provided directly on the cutter shaft support case 26, and in this case, the need for a transmission mechanism such as a belt can be reduced.

Furthermore, the rotating body 18 can be driven by a device such as a torque actuator with high torque and low rotation, and other mechanisms can be used instead of the transmission means using the worm 17 and the worm wheel 19.

As described above, in the present invention, the column 3 erected on the bed 1 is mounted so as to be movable up and down via the screw 7 on the column 3 side screwed into the screw 12 on the bed 1 side. Front and rear cylindrical holes 13.14 are provided horizontally through the vertically extending body 5, and a rotary body 18 equipped with a worm wheel 19 is inserted into the vertically moving body 5. It is rotatably supported so as to be able to engage with a worm 17 fitted to a rotating shaft 16 which is rotatably supported and has a handle 15 for operation, and
A cutter shaft 28 for attaching the cutter 30 to the rotary body 18 is mounted on the rotary body 18 so that the cutter shaft 28 rotates around the rotation center of the rotary body 18 and the cutter 30 revolves. A cutter shaft 28 is rotatably supported eccentrically with respect to the rotation center via a cutter shaft support case 26 provided therein.
is screwed onto an adjusting screw means 27 for adjusting the revolving radius of the cutter 30 by moving it in the radial direction of the rotating body 18, while transmitting the rotation of the motor 33 to the cutter shaft 28 to cause the cutter 30 to rotate. , the pulley 37 of the motor 33
A motor 33 is connected between the and the pulley 31 of the cutter shaft 28.
Boo'J 38, 38 fitted to a support shaft 36 that connects a swing arm 35 swingably supported to the cutter shaft 28 and a swing arm 32 swingably supported to the cutter shaft 28.
Unlike conventional machines, this machine can process both the handle hole and the handle hole used for joints and shikiguchi with one clamp operation. Moreover, by replacing the cutter, handle holes of various shapes can be easily and reliably produced, work efficiency is improved, and the structure is extremely simple. Therefore, it can be manufactured at low cost,
The cutter processing procedure can be performed both downward and upward with respect to the workpiece, and the cutter's turning radius can be easily adjusted over a wide range, making it easy to store and handle the workpiece. The size of the hole can be set freely.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a front view of the processing machine with the table omitted, Fig. 2 is a partially cutaway plan view,
FIG. 3 is a side view, also partially broken, FIG. 4 is a perspective view showing the elevating body, FIG. 5 is an explanatory view showing the turning radius R, and FIG.
9 to 9 are perspective views showing examples of cutting processing.

Claims (1)

[Scope of utility model registration request] The column 3 is set up on the bed 1, and the screw 7 on the column 3 side is screwed into the screw 12 on the bed 1 side.
The elevating body 5, which is installed to be able to move up and down, has cylindrical holes 13 at the front and rear.
．． A rotating body 18 with a worm wheel 19 is provided in the cylindrical hole 13.14, and a handle 15 for operation is rotatably supported on the elevating body 5. The rotating body 18 is rotatably supported so as to be able to engage with a worm 17 fitted on the rotating shaft 16, and a cutter 3 is attached to the rotating body 18.
0 for attaching the cutter shaft 28 to the same cutter shaft 2.
8 is rotatable eccentrically with respect to the rotation center of the rotation body 18 via a cutter shaft support case 26 installed on the rotation body 18 so that the cutter 30 is rotated around the rotation center of the rotation body 18. Furthermore, an adjusting means 27 for moving the cutter shaft 28 in the radial direction of the rotating body 18 to adjust the revolving radius of the cutter 30 is screwed into the cutter shaft support case 26 . A swing arm is provided between the boot 37 of the motor 33 and the pulley 31 of the cutter shaft 28 to allow the cutter 30 to rotate by transmitting the rotation to the cutter shaft 28. 35 and a swing arm 32 swingably supported with respect to the cutter shaft 28, pulleys 38, 38a fitted on a support shaft 36 are interposed to enable rotation transmission. Processing machine for wood joints in wooden buildings, etc.