JPS6232805Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is applicable to wooden buildings, furniture, fittings, etc.
This invention relates to a blade feeding device for a woodworking machine that processes holes for joints and joints for joining pieces of wood in the longitudinal direction or in a crosswise manner.

Conventionally, this type of woodworking machine has used two machines, a milling machine and a square chisel machine, to machine the square and square holes separately, which has been complicated and inefficient. Therefore, the applicant first proposed a woodworking machine that could perform both types of processing with one machine. (Special Publication No. 61-7922, Japanese Patent Publication No. 57
(Refer to Publication No. 18045, etc.) As shown in Figs. 1 to 6, these woodworking machines have two parallel A vertical sliding base 4 is integrally framed with the vertical guide bars 2, 2 and the support holder 3, and is vertically movably supported by a vertical feed screw 5, and the vertical sliding base 4 is provided with two left and right guide bars. A left-right sliding base 8 equipped with a cutter part 7 that can be guided by a left-right sliding base 8 is supported so as to be movable left and right by a left-right feed screw 9, so that the cutter part 7 can be moved both vertically and horizontally. be.

According to a woodworking machine having such a configuration, it is possible to machine flat holes 9 and 10 as shown in FIGS. 8A and B, but it is possible to machine holes 11 and 12 as shown in FIGS.
cannot be processed by machining alone;
However, since the left and right sides must be cut separately, the operation is cumbersome and inefficient.

Therefore, by adding a semicircular feeding means for the blade part to the above-mentioned woodworking machine, it became possible to easily process even U-shaped end faces and 〓 end face shapes as shown in Figure 8 C and D. It is.

The present invention provides a cutter feeding device for the purpose of easily and smoothly moving the cutter portion in a semicircular manner in the woodworking machine constructed as described above. In detail, a hole 13 is formed in the end of the support holder 3 in parallel with the upper and lower guide bars 2, 2, and a hole 13 is formed in the hole 13 so that the upper end of the upper and lower feed screws 5 is rotatable and has a shaft. The vertical guide 14 attached via the nut 15, spring washer 16, and handle 17 is fitted and guided so as not to move in the direction, and the lower end of the vertical feed screw 5 is screwed into a threaded part (not shown) of the bed 1, and the handle 17
The base 4 slides up and down relative to the bed 1 due to the rotation of the
can be raised and lowered.

Further, the left and right feed screw 9 has a threaded portion screwed into a screw 18 fixed to the left and right sliding base 8 as shown in FIG. 7, and the other end shaft portion is as shown in FIGS. 2 and 6.
The left and right guides 19 are rotatably directed via a handle 20, a nut 21, and a spring washer 22.

Further, one end of a link 23 is rotatably connected to the vertical guide 14 by a seat bolt 24, and the other end of the link 23 is indirectly connected to the vertical sliding base 4 as described later. By the screw movement of the vertical feed screw 5, the vertical guide 14 and the link 2
3 to move the vertically sliding base 4 upward or downward.

Thus, the vertical sliding base 4 is provided with a hole 4a perpendicular to the axial direction of the vertical guide bars 2, 2, as shown in FIG. The link plate 26 connected to the cylindrical shaft 25 and the link 23 are rotatably connected by a caulking pin 27 as shown in FIG. As shown in FIG. 2, a hole 29 is provided, and a cylindrical portion 30a is fitted into the hole 29 to rotatably support a slide shaft 30.

Further, a square groove 31 is provided in the left and right guide 19 in a direction perpendicular to the left and right feed screw 9, and the square part 30b of the slide shaft 30 is slidably engaged in the square groove 31, so that the cylindrical shaft 25 is connected to the handle. When the operation shaft 38 is rotated by the rotation of 38b, the link plate 28 is rotated, and the slide shaft 30 is rotated in an arc shape. Therefore, the rectangular portion 30b and the square groove 31 slide in the opposite direction, so that the left and right guides 19 move in the left and right directions together with the left and right feed screws 9, and the left and right guides 19 move left and right by the up and down direction and relative movement by the up and down feeding means. The moving base 8 is configured to move in a semicircle together with the blade part 7.

Here, the cutter section 7 is formed by attaching and detaching a dovetail bit 33, a flat bit 34, etc. to both ends of a horizontal shaft 32 which is driven and rotated by a motor (not shown), and is mounted on a left and right sliding base 8 for forward and backward feeding. It is rotatably supported by a short shaft 37 on a slide plate 36 that is slid in the front and back direction by a screw 35, and can be rotated and fixed by a tightening means b provided via the short shaft 37. This allows both bits 33 and 34 to be used selectively.

Further, the cylindrical shaft 25 has a worm wheel 25a carved on its outer periphery, and a shaft 38 which is integrally formed with a worm gear 38a and a handle 38b that fit the worm wheel 25a, as shown in FIG.
Metal 39 and adjustment bearing 4 on vertical sliding base 4
0, and the cylindrical shaft 25 can be rotated by operating the handle 38b.

The inner hole 25b of the cylindrical shaft 25 is provided eccentrically with respect to the outer diameter, into which the fulcrum shaft 41 is rotatably inserted, and the link plate 2 is attached to both ends of the fulcrum shaft 41.
Numerals 6 and 28 are fixed with countersunk head screws 42, etc., and a slide pin 43 supported by one of the link plates 26 is connected to a plurality of engagement holes 2 provided on the end surface of the cylindrical shaft.
5c..., as shown in FIG. 5, to prevent rotation of the fulcrum shaft 41, link plates 26, 28, and cylindrical shaft 25.

Furthermore, a hole 4b is provided in the peripheral wall of the cylindrical shaft mounting hole 4a of the vertical sliding base 4 as shown in FIG.
the stopper pin 4 via the compression spring 44.
Elongated holes 46 are provided in the link plate 26 at intervals of 0°, 90°, and 180°.
It is fitted into the 0° elongated hole of...

In FIG. 2, reference numeral 47 denotes a spring mounted on the upper and lower guide bars 2, 2 for balancing the weight.

In the above configuration, when machining holes and holes using this machine, the machine body is first held on the workpiece W by the vice means a, and once the desired bit is selected, the bit is moved by the motor. Drive rotates,
Next, when the vertical sliding base 4 is lowered by the vertical feed screw 5, the horizontal sliding base 8 is lowered accordingly.
Since the cutter portion 7 is lowered, the workpiece W is cut by the bit.

Once it has descended to the specified position, turn the vertical feed screw 5.
By raising and lowering it, holes 9 and 10 as shown in FIGS. 8A and 8B can be formed.

Further, the blade part 7 is lowered by the same operation as described above, and after stopping at a predetermined lowered position, the handle 38b is lowered.
When the cylindrical shaft 25 is rotated 180 degrees by operation, the left and right feeding means C moves to the left and right sliding base 8 via the link plate 28, the slide shaft 30, and the left and right guides 19.
At the same time, the vertically sliding base 4 slides vertically via the link plate 26 and the link 23, and the cutter part 7 moves semicircularly. That is, the square portion 30b of the slide shaft 30 rotatably supported on the link plate 28 and the square groove 31 of the left and right guides 19.
By sliding relative to the left and right guides 19, the left and right guides 19 move to the left or right along with the left and right feed screws 9, so the left and right sliding base 8 moves in a semicircular manner along with the blade part 7. Therefore, the vertical feed screw 5
By being lifted up, it is possible to process a U-shaped end face 11 as shown in FIGS. 8C and 8D.

In addition, in the case of the end face shape 12 shown in FIG. 8D, after being lowered as described above, the cylindrical shaft 2
5 by 90 degrees, then feed it a predetermined amount to the left or right using the left and right feed screws 9, and then rotate the cylindrical shaft 25 by 90 degrees.
After rotating, it can be processed by lifting it up.

As explained above, according to the knife feeding device for a woodworking machine according to the present invention, the vertical sliding base 4 is lowered by the vertical feeding means, and when it is near the lowering end, the cylindrical shaft 25 is rotated by 90 degrees using the handle 38b. Next, after moving the cylindrical shaft 25 by a predetermined amount in the width direction using the left and right feeding means, the cylindrical shaft 25 is further rotated by 90 degrees using the handle 38b, and then moved upward to process a letter-shaped 〓 having a rounded shape at the corner of the end face. can do. That is, the cutter part 7 is lowered together with the upper and lower and left and right sliding bases 4 and 8 by the vertical feed screw 5, and after stopping at a predetermined position, when the cylindrical shaft 25 is rotated by operating the handle, the link plate 28 at one end of the blade part 7 is lowered. The left and right feed screws 9 are moved in the axial direction by the supported slide shaft 30 via the left and right guides 19, while the link plate 2 at the other end of the cylindrical shaft 25 is moved.
The vertical sliding base 4 moves up and down with respect to the vertical guide 14 which rotatably and vertically supports the vertical feed screw 5 on the support holder 3 via the link 23 connected to the screw 6, and the vertical sliding base 4 moves up and down. By moving relative to the vertical sliding base, the blade part 7 can be moved in a semicircle by only operating the handle, and in conjunction with the vertical movement. Can be simply and easily processed.

Further, the slide shaft 30 is rotatably supported by the link plate 28 at one end of the cylindrical shaft 25, and as the cylindrical shaft 25 rotates, the rectangular portion 30b of the slide shaft 30,
Since the left and right sliding base 8 is moved by relative sliding with the square groove 31 of the left and right guide 19 that rotatably supports the left and right feed screw 9, the movement is smooth and the semicircle of the blade part 7 is It is possible to easily and lightly feed documents with little force. Therefore, by rotating the cylindrical shaft 25 by 180 degrees or 90 degrees by operating the handle after being lowered by the vertical feed means, it is extremely easy to form a U-shape with a semicircular end surface or a letter-shaped end surface. Moreover, it has the effect of being able to be processed easily and efficiently with one machine without manual work.

[Brief explanation of the drawing]

Figures 1 and 2 are a side view and a front view respectively showing a woodworking machine equipped with a blade feeding device according to the present invention, and Figure 3
The figure shows a blade feeding device, and - in Fig. 9.
Fig. 4 is a cross-sectional view of Fig. 1, Fig. 5 is a left side view of the blade feeder as seen from the left side of Fig. 3, and Fig. 6 is a view from the right side of Fig. 3. The right side view of the same device as seen in Fig. 7 shows the screwing part between the left and right sliding bases and the left and right feed screws, the cross-sectional view taken along the line - in Fig. 9, and Fig. 8 A, B,
C and D are perspective views showing examples of cutting holes and holes, respectively, and FIG. 9 is a plan view of a woodworking machine equipped with a blade feeding device according to the present invention. W...Workpiece material, a...Vise means, 1...Vet, 3...Support holder, 4...Vertical sliding base, 5...Vertical feed screw, 7...Cutter section, 8...
Left and right sliding base, 9...Left and right feed screw, 13...
Hole, 14...Upper and lower guide, 19...Left and right guide,
23... Link, 25... Cylindrical shaft, 26, 28...
...Link plate, 30...Slide shaft, 31...
...square groove.

Claims (1)

[Scope of utility model registration request] The bed 1, which is equipped with a vice means that is self-retained by the workpiece, has a vertical sliding base 4 that is integrally framed with the vertical guide bars 2, 2 and the support holder 3.
Further, a left and right sliding base 8 having a cutter part 7 is attached to the vertical sliding base 4 so that the cutter part 7 can be moved vertically and horizontally, respectively, via a vertical feeding means and a left and right feeding means. This is a blade moving device for a woodworking machine, in which a hole 13 is provided in the support holder 3 coaxially with the vertical feed screw 5, and a vertical guide 14 rotatably provided at the upper end of the vertical feed screw 5 is inserted and guided. One end of a cylindrical shaft 25 rotatably attached to the vertical sliding base 4 is operatively connected to the vertical guide 14 via a link 23 and a link plate 26, while a link plate 28 is connected to the other end of the cylindrical shaft. A hole 29 is provided in which the cylindrical part of the slide shaft is fitted and rotatably supported, and the left and right feed screws 9
A square groove 31 is provided in the left and right guide 19 rotatably attached to the left and right feed screws 9 in a direction perpendicular to the left and right feed screw 9.
1 by slidably engaging the slide shaft 30 with the link plate 28 and the left and right guides 19.
A blade feeding device for a woodworking machine, characterized in that the two are interlocked and connected.