JPS6134962B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION When constructing wooden structures such as houses and furniture, the present invention involves joining the pieces of wood in the lengthwise direction or across them by dovetailing or dovetailing the pieces of wood. It relates to a processing machine such as a large insertion machine for machining dovetail grooves, etc., and more specifically, to a biaxial movement adjustment mechanism for a blade arbor equipped with a router bit.
The purpose of this is that the arcuate convex surface provided on one side of the processing machine body is guided along the arcuate concave surface provided on the sliding base.
The purpose is to simplify the structure so that the two-axis movement adjustment of the blade arbor can be performed smoothly and with high precision.

The present invention will be described in detail below based on the illustrated embodiments.As shown in FIGS. 1 and 2, the processing machine main body 1
, a vice mechanism 2 , and a sliding base 3 .

As shown in FIGS. 4 and 5, the processing machine main body 1 includes a motor 5 housed in a motor case 4, and a blade arbor 7 which is driven and rotatably connected to a motor shaft 5a by an appropriate power transmission mechanism 6. Equipped with
A router bit 8 is removably attached to the protruding end of the blade arbor 7 which protrudes outward from the lower end of the motor case 4 with a collet nut 9, and a stopper hole 7a is provided at a suitable position in the blade arbor 7. , by inserting a stopper pin 11 which is provided in the motor case 4 so as to be freely movable in the axial direction via a leaf spring 10 in opposition to this, the rotation of the blade arbor 7 is prevented, and the router bit 8 is It is arranged so that the exchange can be carried out conveniently.

Further, the processing machine main body 1 is formed by providing an arcuate convex surface 12 with an appropriate curvature on one side surface of the motor case 4, as shown in FIG.

The arcuate convex surface 12 is provided on the circumference of the blade arbor 7 at a position offset by a certain distance laterally from the center O of the blade arbor 7. It is inscribed and supported by the sliding base 3 so as to be slidable in the arc surface direction and in the direction perpendicular to this.

Furthermore, a sliding base 3 supporting the processing machine main body 1 is provided.
is integrally equipped with a support part 13 of the processing machine main body 1, and the support part 13 is provided in an arc shape with an appropriate wall thickness, and its inner surface has the same curvature as the arc-shaped convex surface 12 of the processing machine main body 1. The outer surface is formed into a circular arc surface 15 concentric with the circular arc concave surface 14, and a window hole 1 is formed in the center thereof.
6 is passed through.

Thus, the processing machine main body 1 has a boss 17 that integrally projects outward from the center of the arcuate convex surface 12, and the boss 17 is slidably inserted into the window hole 16 of the sliding base 3. An arcuate convex surface 12 is provided inside the arcuate concave surface 14, and a leaf spring 18 is attached to the tip of the boss 17.
is fixed with bolts 20 via the holding plate 19, so that the processing machine main body 1 is attached to the support part 13 of the sliding base 3.
is supported by

Here, the inner diameter of the window hole 16 is equal to the inner diameter of the boss 17.
The boss 17 is made larger than the outer diameter of the boss 17 by a desired dimension so that there is enough space for the machine to move an appropriate amount in two orthogonal axes. It is possible to move to.

Further, as shown in FIG. 1, a lever 21 is protruded from the bolt 20, and by tightening and loosening the bolt 20 with the lever 21, the processing machine main body 1 is fixed to the sliding base 3. or loosen its fixation.

Furthermore, the biaxial movement of the processing machine body 1 with respect to the sliding base 3 is carried out by the vertical feed screw 22 and the left and right feed screw 2.
3.

This vertical feed screw 22 is rotatably supported by a mounting plate 24 fixed to the processing machine main body 1, and its axial movement is restrained.
It is screwed into the screw hole 3a.

On the other hand, the left and right feed screw 23 is rotatably supported with its axial movement restrained by a mounting plate 25 formed of an elastically deformable metal plate fixed to the side surface of the processing machine main body 1, and the threaded portion 23a of the left and right feed screw 23 is It is screwed into a screw hole 3b of the moving base 3.

In addition, as shown in FIGS. 1 and 2, the vice mechanism 2 has a front and rear guide bar 28 between a vice block 26 and a supporter 27, and left and right side blades 29, 30 fixed in a frame in parallel. There is,
Front and rear guide bar 28 and left side plate 2
At 9, the sliding base 3 is fitted so as to be slidable in the front-back direction.

Both side plates 29 and 30 are the workpiece W
It is fixed so that it is flush with the contact surface.

Further, a vice holder 331 is fitted to the front and rear guide bars 28 so as to be slidable in the front and rear direction, and a plurality of holes 28a are formed at appropriate intervals in the longitudinal direction of the front and rear guide bars 28. The vice holder 31 is properly fixed by selecting an appropriate hole from inside according to the dimensions of the workpiece W and fitting the pin 32 therein.

Inside the vise holder 31, as shown in FIG.
5 are assembled in order, and a feed nut 37 is inserted through the center of the bolts, and the feed nut 37 is threaded through the tightening screw 36 of the workpiece W, the end of which is provided with a knob 40 and a clamp plate 41. A plate spring 38 is fixed to the opening of the tightening boss 35 with a screw 39 so as not to separate from the tightening boss 35.

Further, as shown in FIG. 7, the tightening boss 35 is provided with a protruding portion 35a that protrudes outward. The portion 35a is removably fitted into the recess 38a of the leaf spring 38.

Further, the collar 33 is fixed to the feed nut 37 via a ring 43, and the tightening boss 3
5 is provided with a lever 44.

Therefore, when tightening the workpiece W,
Tighten the tightening screw 3 so that the vise block 26 is butted against one end and the clamp plate 41 is butted against the other end.
Screw 6. Next, when the tightening boss 35 is rotated by the lever 44, the protrusion 35 of the tightening boss 35
Since a is removed from the recess 38a of the leaf spring 38, the tightening boss 35 moves to the left in FIG. 6 and compresses the compression spring 34. This compressive force is
3, ring 43, feed nut 37, tightening screw 3
6. The clamp plate 41 acts in this order to press the workpiece W and clamp the workpiece W between it and the vise block 26.

In the above configuration, when the blade arbor 7, that is, the router bit 8, is to be moved in the axial direction, when the vertical feed screw 22 is rotated, the vertical feed screw 22 is restrained by the processing machine body 1 and moves in the axial direction. Since it does not move, due to the screw engagement with the sliding base 3, the arcuate convex surface 12 of the processing machine main body 12 is slidably guided by the arcuate concave surface 14 in a direction perpendicular to its circumferential direction, and is moved upward or axially. moved downward.

Also, when the left and right feed screws 23 are rotated, the left and right feed screws 23 are attached to the processing machine main body 1 by the mounting plate 25.
The arc-shaped convex surface 12 of the processing machine main body 1 slides in the circumferential direction on the arc-shaped concave surface 14 of the sliding base 3 by screwing with the sliding base 3 without moving in the axial direction. You will be guided. As a result, as shown in FIG. 3, the processing machine main body 1 is rotated about the center P, so the blade arbor 7 located at a certain distance from the center P is rotated about the center P. , the router bit 8 together with the blade arbor 7 is moved leftward or rightward.

The router bit 8 is moved laterally with the bolt 20 loosened and within the effective diameter of the window hole 16 into which the boss 17 is inserted.

Also, a mounting plate 25 that supports the left and right feed screws 223
When the processing machine main body 1 moves in the left-right direction, the upward direction of its configuration changes, but the amount of change is absorbed by the elastic deformation of the mounting plate 23 itself, so the left and right feed screws 23 Rotation is not difficult.

Further, the router bit 8 is moved in the longitudinal direction by rotating a longitudinal feed screw 45 which is threaded through a threaded hole in the sliding base 3.

The longitudinal feed screw 45 is rotatably installed in the vice mechanism 2 while preventing movement in the axial direction.

As explained above, according to the processing machine for large insertion, etc. according to the present invention, the outer side of the processing machine main body 1 equipped with the blade arbor 7 at a position offset from the blade arbor 7 in the circumferential direction A sliding base 3 is formed with a circular convex surface 12, and the circular convex surface 12 is attached to a vice mechanism 2 so as to be movable back and forth.
The processing machine main body 1 is supported by bolts 20 through plate springs 18, and is provided in relation to the processing machine main body 1 and the sliding base 3. Since the processing machine main body 1 can be adjusted to move in two axial directions along the arcuate concave surface 14 by operating the vertical and left and right feed screws 22 and 23, the blade arbor 7 can be moved up and down and left and right. , the arc-shaped convex surface 12 of the processing machine main body 1 is guided by the arc-shaped concave surface 14 provided on the support part 15 of the sliding base 3 and is slid or rotated in the plane direction and the arc surface direction. Since this method does not cause backlash or the like when adjusting the movement in the two axes directions, unlike when using a guide bar or link mechanism, it has the advantage that the movement adjustment can be made smoothly and with high precision. be.

In addition, since the processing machine main body 1 and the sliding base 3 themselves need only be provided with corresponding arcuate convex surfaces 12 and arcuate concave surfaces 14, the structure is simpler than conventional guide bars and link mechanisms. Not only can it be manufactured at low cost because it can be simplified, but it also has the advantage of being less likely to break down and having excellent durability.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a processing machine for large inserts, etc. according to the present invention, Fig. 2 is a partially cutaway side view of the processing machine, and Fig. 3 is a main body of the processing machine. FIGS. 4 and 5 are a partially sectional side view and a front view of the main body of the processing machine, respectively, and FIGS. 7 is a partial longitudinal side view of the vice mechanism in the processing machine, and FIG. 7 is a partial plan view of the vice mechanism. 1...Processing machine body, 2...Vise mechanism, 3...Sliding base, 5...Motor, 7...Blade arbor, 8
... Router bit, 12 ... Arc-shaped convex surface, 13 ... Support part of sliding base, 14 ... Arc-shaped concave surface, 18 ... Leaf spring, 20 ... Bolt, 22 ... Vertical feed screw, 23
...Left and right feed screw.

Claims (1)

[Claims] 1 A processing machine main body comprising a motor, a router bit attached to a blade arbor driven and rotated by the motor, and a sliding base attached to a vice mechanism so as to be adjustable in forward and backward movement, the processing machine main body comprising: One side surface of the motor case is formed into an arc-shaped convex surface that coincides with the circumference centered at a position offset from the axis of the blade arbor by a certain distance from the axis of the blade arbor. The upper and lower feed screws and the left and right feed screws are supported by mounting plates that are butted against the concave surfaces, supported by bolts via leaf springs, and fixed to the main body of the processing machine, respectively, and the threaded portions are respectively screwed to the sliding base. 1. A processing machine for large inserts, etc., characterized in that the main body of the processing machine can be moved in two axial directions along an arcuate recess of a sliding base by operating the left and right screws.