JPS6228403Y2 - - Google Patents

Description

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

As conventional woodworking machines of this kind, a handle cutting machine and a square chisel machine are known, but the former cannot process a handle hole, and the latter only has a handle hole and cannot process a handle. Conventionally, not only were two machines needed to process the handle and handle hole, but this also meant that when machining the handle hole, the finish of the hole bottom had to be corrected only by hand, and the machining operations required skill. However, the work was complicated and inefficient.

This led to the emergence of a woodworking machine that made it possible to process handles and handle holes with a single machine.

As shown in FIGS. 1 and 2, the above-mentioned woodworking machine has a bed 1 equipped with a vice means a so that it can self-hold onto the workpiece W, two upper and lower guide bars 2, and a support holder. 3 and a vertical sliding base 4 that can be moved up and down.
At the same time, the vertical sliding base 4 is provided with a horizontal sliding base 7 equipped with a cutter part 6 so as to be guided by the two left and right guide bars 5, 5 through a horizontal feeding means C. A cylindrical shaft 21 is supported on the vertical sliding base 4, and a fulcrum shaft 22 is fitted inwardly in a direction perpendicular to the axial direction of the vertical and horizontal feed screws 8 and 9 of the vertical and left and right feed means b and c. A horizontal axis f consisting of a Connect feed screws 8 and 9 to link 10 and link plate 1.
1, 12, etc., and is further supported on the left and right sliding base 7 so as to be movable in the front and back direction via a back and forth feeding means d.
The cutter part 6 is rotatably and fixedly supported via a tightening means e, and odd-shaped bits such as a flat bit 15 and a dovetail bit 16 are attached to both ends of a rotating shaft 14 driven and rotated by a motor, and these are selected. After forming the blade part 6 so that it can be used, the blade part 6 is lowered by the vertical feeding means b, then moved in a semicircle by rotating the horizontal axis f, and then raised or moved to the left or right by the left and right feeding means c. After moving to the right, the horizontal axis is rotated and then raised to form the handle holes 17 and 18 in the workpiece W as shown in Fig. 8A and B, and the handle as shown in C and D. The present applicant has previously proposed a structure capable of processing 19 and 20. (Japanese Patent Publication No. 1983-7922, Japanese Patent Publication No. 1983-
(Refer to Publication No. 134703) The present invention provides an improved blade movement adjustment device for a woodworking machine having the above-mentioned structure, and its purpose is to change the diameter dimension of the semicircular movement of the blade part. The purpose is to make it possible to easily and easily process various patterns having substantially U-shaped ends.

Hereinafter, the present invention will be described in detail based on the illustrated embodiments. As shown in FIGS.
The horizontal shaft f, which is rotatably inserted into the
A cylindrical shaft 21 as shown in FIG. 7 is used, and the cylindrical shaft 21 has an inner hole 21a slightly eccentric with respect to the outer diameter, and a fulcrum shaft 22 is rotated in the inner hole 21a. It can be inserted freely.

The rotation means for the cylindrical shaft 21 is
A worm wheel 21b is carved on the outer periphery of the worm gear 2, and the worm gear 2 is adapted to fit the worm wheel 21b.
A rotating shaft 23 with a handle 23b integrally formed with the handle 23b is rotatably supported on the vertical sliding base 4 via a metal 24 and an adjustment bearing 25, as shown in FIG.

Furthermore, link plates 11 and 12 are fixed to both ends of the fulcrum shaft 22 with countersunk head screws 26 and parallel pins (not shown), respectively, and one of the link plates 11 has an axis of the fulcrum shaft 22 fixed thereto. As shown in FIG. 5, the other end of the link 10 is rotatably supported by a caulking pin 27 horizontally to the center and connected to the vertical feed screw 8 of the vertical feed means b, and the other link plate 12 is provided with a hole at a position horizontal to the pivot axis of the link 10, as shown in FIG. 6, and the cylindrical portion 28a of the slide shaft 28 consisting of a cylindrical portion 28a and a square portion 28b can be freely rotated through the hole. It has been inserted into.

That is, a square groove 36 is provided in the left and right guides 32 in a direction perpendicular to the left and right feed screws 9, and the square portion 28b of the slide shaft 28 is slidably fitted into the square groove 36.

Also, the caulking pin 27 of the link plates 11 and 12 and the slide shaft 2 are connected to the axis of the cylindrical portion 21.
A hole is provided in one link plate (11 in the illustrated example) opposite to a plurality of holes 21c provided in the cylindrical shaft 21 so that the attachment distance of the link plate 8 can be changed at any time, and a slide pin 29 is fitted in both holes. The cylindrical shaft 21, both link plates 11, and the fulcrum shaft 22 are removably fixed to the cylindrical shaft 21.

Further, one of the link plates 11 and 12, in the illustrated example, the link plate 11, is provided with elongated holes 1 at intervals of 0°, 90°, and 180° about the axis of the fulcrum shaft 22.
1a..., and on the other hand, a hole 4b is provided in the outer wall of the cylindrical shaft mounting hole 4a of the vertical sliding base 4 in parallel with the cylindrical shaft 21. Stopper pin 3
1 is removably engaged in the elongated hole 11a to prevent rotation of the link plate 11, the fulcrum shaft 22 connected thereto, the cylindrical shaft 221, and the link plate 12.

Further, the left and right feeding means c has an adjusting nut (not shown) fixedly adjustable on the left and right sliding base 7, and screws into the threaded portion of the left and right feed screw 9, and the other end of the left and right feed screw 9 is As shown in FIGS. 2 and 6, the left and right guides 32 are rotatably supported via a handle 33, a nut 34, and a spring washer 35. 36
The rectangular portion 28b of the toslide shaft 28 is relatively slidably engaged in the square groove 36, and the rotational movement of the cylindrical shaft 21 is caused by the link plate 12,
It is configured to convert the left and right feed screw 9 into axial movement via the slide shaft 28 and the left and right guides 32. That is, a square groove 36 is provided in the left and right guide 32 in a direction perpendicular to the left and right feed screw 9, and the square part 28b of the slide shaft 28 is slidably engaged in the square groove 36, so that the cylindrical shaft 21 is connected to the handle of the operating shaft 23. 23b, the slide shaft 28 is rotated in an arc when the link plate 12 is rotated. Therefore, the rectangular portion 28b and the square groove 36 slide relative to each other, and the left and right guides 32 move in the left and right direction together with the left and right feed screws 9. The left-right sliding base 7 is configured to move in a semicircle together with the cutter portion 6. In FIG. 2, reference numeral 37 denotes a spring mounted on the upper and lower guide bars 2, 2 for balancing the weight.

In the above structure, using this, the handles 19, 2 whose end faces are U-shaped as shown in FIGS. 8C and 8D.
When machining 0, the machine body is held on the workpiece W by the vice means a, and after selecting the desired bit, the bit is driven and rotated by the motor, and then the vertical feeding means b moves the machine body to the left and right along with the vertical sliding base 4. The workpiece W is cut by lowering the sliding base 7 and the blade part 6.

When the blade part 6 is lowered to a predetermined position, it stops at that position, and then the rotating shaft 23 is rotated by the handle 23b to rotate the cylindrical shaft 21 by 180 degrees, and the link plate connected to the cylindrical shaft 21 is rotated. 11 and 12 are rotated, so one of the link plates 12 moves the left and right guide 32 to the left or right via the slide shaft 28.
As a result, the left and right feed screws 9 move together with the left and right sliding bases 7.

At this time, the other link plate 11 is also rotated, so that the vertical feed screw 8 is slightly raised and lowered via the link 10, so that the left and right sliding base 7
That is, the blade part 6 is moved in a semicircular manner. Next, the handle 1 shown in the figure is moved up by the vertical feeding means b.
9 can be processed.

In addition, when processing the illustrated handle 20, the left and right sliding base is advanced by the length of the handle 20 by the forward and backward feeding means d, and then moved by a predetermined amount in the width direction of the handle 20, and then lowered by vertical feeding means b,
When near the lowering end, the cylindrical shaft 21 is rotated by 90 degrees by operating the handle 23b, then moved in the width direction by the left and right feeding means c, and after being moved by a predetermined amount, the cylindrical shaft 21 is further rotated by 90 degrees by the handle 23b.
By rotating the handle 20° and then raising it, a U-shaped handle 20 having a rounded end corner can be processed.

Here, since the inner hole 21a of the cylindrical shaft 21 is eccentric with respect to the outer diameter, if the fitting hole 21c of the slide pin 29 is converted, the rotation center of the cylindrical shaft 21, the slide shaft 28, and the caulking pin 27 Since the center distances are relatively different by the amount of eccentricity, the diameter dimension of semicircular movement of the blade part 6 can be changed, and U-shaped handles with different widths can be processed.

As explained above, according to the blade movement adjustment device for a woodworking machine according to the present invention, both vertical and horizontal feed means b and c are provided, and both ends of these feed screws 8 and 9 are interlocked and connected so that they can be rotated freely. In a device in which the cutter part 6 can be moved up and down, left and right, and semicircularly by the horizontal axis f, a cylindrical shaft 21 having an inner hole 21a formed eccentrically with respect to the outer diameter is used for the horizontal axis f. , both ends of the link plate 1 are inserted into the inner hole 21a.
1 and 12, the fulcrum shaft 22 interlocked with the vertical and lateral feed screws 8 and 9 is rotatably inserted, so that by rotating the cylindrical shaft 21 relative to the fulcrum shaft 22, the inner hole can be opened. The diameter dimension of the semicircular movement of the cutter part 6 can be converted and adjusted by the eccentricity of the blade 21a, and therefore, just by rotating the cylindrical shaft 21 by a certain angle, the end face U-shaped handles with different widths can be easily and easily created. Moreover, since the amount of movement is determined, there is an effect that processing can be performed with high accuracy.

[Brief explanation of the drawing]

FIG. 1 is a side view of a woodworking machine equipped with a blade movement adjustment device according to the present invention, and FIG. 2 is a front view of the same woodworking machine.
Fig. 3 is a longitudinal cross-sectional side view taken along the line - in Fig. 9, Fig. 4 is a cross-sectional view taken along the - line in Fig. 1, and Fig. 5 is a view from the left side of the blade moving device shown in Fig. 3. 6 is a right side view of the main part as seen from the right side of FIG. 3, FIG. 7 is a view taken along the - line in FIG. 3, and FIGS. 8A, B, C, and D are Perspective views showing examples of cutting the handle and handle hole, No. 9
The figure is a plan view of a woodworking machine equipped with a blade movement adjustment device according to the present invention. W...Workpiece material, a...Vise means, b...Vertical feed means, c...Right and left feed means, 1...Bed, 4...Vertical sliding base, 6...Cutter section, 7...
...Left and right sliding base, 8...Vertical feed screw, 9...
Left and right feed screw, 10... Link, 11, 12...
Link plate, 21... Cylindrical shaft, 21a... Inner hole of the cylindrical shaft, 22... Fulcrum shaft.

Claims (1)

[Scope of utility model registration request] The bed equipped with a self-holding vise means of the machine to be processed has a vertical sliding base integrally framed with a vertical guide bar and a support holder, and the vertical sliding base has a left and right sliding base equipped with a cutting tool part. This is a blade moving device for a woodworking machine, in which a movable base is attached so that the cutter part can be moved vertically and horizontally through vertical and horizontal feeding means, respectively, and a fulcrum shaft is provided at an appropriate position on the vertical sliding base. and a horizontal shaft consisting of a cylindrical shaft, the cylindrical shaft has an inner hole eccentrically formed with respect to the outer diameter, a fulcrum shaft is rotatably inserted into the cylindrical shaft, and upper and lower and left and right feed screws are interlocked and connected to both ends of the fulcrum shaft. A cutter movement adjustment device for a woodworking machine, characterized in that a link plate and the cylindrical shaft are removably connected to each other, and the diameter dimension of semicircular motion of the cutter part can be changed by the rotational phase of the cylindrical shaft.