JPH0414163Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The invention is based on a motor and a chuck on a horizontal shaft linked to the motor, which is equipped with a cutting tool such as a bit, and is moved vertically and horizontally to the base. This invention relates to a copying router that copies flat grooves, dovetail grooves, etc. on workpieces.

[Prior Art] Conventionally, woodworking machines are known that are provided with a guide plate and move a workpiece in conjunction with the guide of the guide plate.

[Problem that the invention attempts to solve]

However, with conventional woodworking machines, it is difficult for the operator to instantly and alternately check the guide plate and the cutting machine with their eyes, so a large-scale guide device must be used, resulting in a large overall size. There are problems such as it becomes complicated and structurally complex.

The present invention solves the above-mentioned problems by making the vertical feed of the blade part quick and smooth, allowing fine feed in the left and right directions, and simplifying the structure and improving the accuracy of copying. , is its purpose.

[Means for solving problems]

That is, the present invention provides a profiling router in which a cutter section, which is equipped with a motor and a chuck for attaching a cutter on a horizontal axis that is linked to the motor, is fed vertically and horizontally relative to the base to perform profiling processing. The feed is controlled by the left and right guides, which are vertically movably engaged in the vertical guide grooves installed on the left and right sides of the upper and lower guide plates fixed on both sides of the base, and the two parallel guides that support the blade part so that it can be moved left and right. A feed screw rod for feeding the cutter part is installed parallel to the guide bar and rotatably operable in the upper and lower guide frames formed by framing the guide bar to form a screw feeding means,
The vertical feed is formed into a link feeding means by connecting a link handle to a link mechanism whose one end is pivotally supported by a fulcrum shaft on the base and the other end is pivotally connected to the left and right guides respectively, and furthermore, a The template is fixed, and a profiling concave groove is formed on its side in a direction perpendicular to the upper surface of the base, while a guide pin holder is erected from the cutter part to form a guide pin parallel to the horizontal axis of the cutter part. The above problem was solved by fitting into the groove.

〔Example〕

The embodiments of the present invention will be described below in detail based on the drawings.As shown in Figs. is fixed with bolts 4 . . . , and vertical guide plates 3 having a substantially square shape from the front are erected perpendicularly to the upper surface 1 ′ of the base.

On both left and right sides of the upper and lower guide plates 3, guide grooves 3a and 3b having a substantially U-shaped cross section are provided vertically in parallel to each other, and each guide groove 3a, 3b
As clearly shown in FIG. 6, upper and lower guides 5 and 6 are fitted perpendicularly to the upper surface 1' of the base so that they can slide vertically without play.

Above and below the upper and lower guides 5 and 6, two parallel guide bars 7 and 7' are fixed with spring pins or the like to integrally form an upper and lower guide frame a.

A fulcrum shaft 9 is rotatably installed in a suitable position on the base 1 in parallel with the guide bars 7, 7', and one end of link levers 10, 11 is fixed to both ends of the fulcrum shaft 9, respectively. the lever 10 and the vertical guide 5, and the other link lever 11 and the vertical guide 6.
Link pin 13 with links 12 and 12' respectively...
etc., respectively, to form a link mechanism b′,
Link handle 14 in place on one link lever
is attached to form an upper and lower guide frame a, that is, a link feeding means b for vertically feeding a cutter portion, which will be described later.

Both guide levers 7, 7' of the above upper and lower guide frame a
As shown in FIG. 6, a bracket 15 is mounted on the outside so that it can slide freely in the left and right directions, and a feed screw rod 16 has a handle 17 fixed to one end with a screw 18.
By rotatably supporting both ends of the bracket 15 on the upper and lower guides 5 and 6 and installing it in parallel with the guide bar 7', the bracket 15, that is, the blade section supported by the bracket 15 as described later, can be moved left and right. A screw feeding means c is formed.

As shown in FIG. 6, the base end of the feed screw rod 16 is supported by one of the upper and lower guides 5 through a retaining ring 19 and a thrust washer 20 to prevent axial movement. is fitted into the other vertical guide 6, and is provided so that rotation of the feed screw rod 16 can be prevented by tightening a knob screw 21 threaded onto the vertical guide 6.

The feed screw rod 16 and the bracket 15 are connected as follows. As shown in FIG. 6, the feed nut 22 screwed onto the feed screw rod 16 is fitted into the key grooved hole 15a penetrating the bracket 15, and the key 23 prevents rotation so that it can slide in the axial direction. A retaining ring 25, 25' is fixed to each end of the feed nut 22, and each retaining ring 2
5, 25', both ends 15b, 15c of the key grooved hole 15a, and both ends 2 of the feed nut 22.
2a and 22b simultaneously support the other ends, respectively, and compression springs 24 and 24 are externally mounted on both ends of the feed nut 22 and held compressed to form a cushion means d, and the bracket 1 is supported through the cushion means d.
5 and a feed screw rod 16 are connected.

That is, by rotating the feed screw rod 16 in the forward direction with the handle 17,
Or, by reversing, the feed nut 22 and the bracket 15 are moved in the left and right direction, but the bracket 15
When the leftward or rightward movement of the feed nut 22 is prevented by contacting a template to be described later, the feed nut 22 resists the spring pressure of one compression spring 24 and moves leftward or rightward by the amount of compression of the compression spring 24. It is formed so that it can move in the direction to absorb the impact force of the bracket 15, and smoothly move the blade section in the left and right direction, which will be described later.

Further, when one compression spring 24 is compressed as described above, the other compression spring 24 is only moved while being held by the feed nut 22.

The key 23 of the cushioning means d is fitted with a set screw 2 screwed into the screw hole 15d of the bracket 15.
6, press and fix the bracket 15.
When the key 23 is fixed with the set screw 26, the cushioning means d no longer performs its cushioning function.

Further, the cutter part 2 supported by the upper and lower guide frames a
7 is formed as follows.

As clearly shown in FIGS. 7 and 8, the bearing 3 is attached to the motor case 28 and the motor cover 29.
1 and 31', the motor 30 is rotatably supported by a motor shaft 30a, and the motor 30 is housed in a motor case 28 and a motor cover 29. , 33', and are supported rotatably and parallel to the motor shaft 30a, and a belt 35 is wound around pulleys 34 and 34', which are fixed to the horizontal shaft 32 and the motor shaft 30a, respectively. The horizontal shaft 32 is provided to be driven.

A collet nut 3 is attached to the tip of the horizontal shaft 32.
7. A collector chuck 38 is provided to detachably hold a cutter 39 such as a bit, and the pulleys 34, 34' and belt 35 are covered by a belt cover 40 screwed to the motor cover 29.

The motor case 28 is also provided with a switch 41 for energizing the motor, and a lock pin 42.
is provided so that it can slide orthogonally to the horizontal shaft 32 via a retaining ring 44 and a compression spring 43, and can be engaged and disengaged from an engagement hole 32a provided in the horizontal shaft 32, thereby preventing the horizontal shaft 32 from rotating. It is possible.

A convex portion 28a is provided on the outer side of the motor case 28, parallel to the horizontal axis 32 and perpendicular to the guide bars 7, 7', as shown in FIG. The bracket 15 is provided with a recess 15' that is slidably fitted to the projection 28a, and a long hole 15 is formed in the center of the recess 15' in parallel to the sliding direction of the projection 28a. 8th
The motor case 28 is provided as shown in the figure.
A tightening screw 46 with a lever 45 screwed into the screw hole 28b provided in the hole 28b is inserted through the elongated hole 15'',
Within the effective length of the elongated hole 15'', the motor case 28 is slidably adjusted in the longitudinal direction of the horizontal shaft 32 and fixed to the bracket 15 with the tightening screw 46 so as to be loosened and tightened.

Further, a notched screw 48 with a handle 47 is supported in the motor case 28 with a retaining ring 49 and a thrust washer 50 so as to be rotatable while preventing axial movement.
The blade part 27 is screwed into a screw hole 15e provided in the horizontal axis 3 by rotating the handle 47.
It is provided so that it can be moved and adjusted in the two axial directions, that is, in the front and rear directions.

Furthermore, a template holder 52 is fixed to the upper part of the upper and lower guide plates 3 with screws 52a, etc., and the template 51 is fixed to the template holder 52 by tightening knob screws 53... and nuts 53a.

Here, the template holder 52 and the template 51 have long holes 52a that are orthogonal to each other.
51a are provided in the vertical and horizontal directions, respectively, and the template 51 can be adjusted to move vertically and horizontally relative to the template holder 52 by inserting the knob screws 53 into the long holes 52a and 51a and screwing the nuts 53a. It's like this.

The front surface of the template 51 has a copy groove 5.
1' is formed, for example, into a substantially U-shape from the front as shown in the figure, and into a shape corresponding to other shapes to be processed.

On the other hand, a guide pin bracket 54a is fixed and erected on the upper part of the motor case 28 in the cutter part 27 with a screw or the like. Insert the guide pin 54 into the mounting hole 54b.
is fixed with a knob screw 55 so as to be slidable in the front-rear direction, and is provided so as to be fitable in the copy groove 51'.

Further, a vice holder 56 is fixed to one side of the base 1, and a vice bar 57 is erected thereon, and one end of a vice bracket 58 is slidable up and down on the top of the vice bar 57.
Moreover, it is fixed with a knob screw 59 so as to be rotatable in the horizontal direction and can be loosened or tightened.

A mounting hole 58a is provided at the other end of the vice bracket 58.
The vise bar 61 is inserted horizontally in the left-right direction, and is fixed with a knob screw 60 so as to be slidable in the left-right direction and can be loosened or tightened.

As clearly shown in FIG. 5, the other end of the vice bar 61 extending toward the approximate center of the base upper surface 1' is provided with a vice 62 and a rotatable vice lever 6.
3 is held by a pin 64, and by rotation of the vice lever 63, the head of the vice 62 can be pressed downward by an inclined surface 63a provided on the vice lever 63. A vice means 71a is formed which is selectively used to press and hold the workpiece W placed thereon from above.

Further, left and right scale plates 65 are installed horizontally on the upper and lower guide plates 3, and correspondingly left and right scale indicators 66 are provided on the bracket 15, and upper and lower scale plates 67 are provided on one side of the upper and lower guide plates 3. are provided in the vertical direction, and upper and lower scale indicators 68 are provided on the upper and lower guide frames a corresponding to these.

Furthermore, as shown in FIG. 3, a plurality of grooves 1'', 1, 1''''... are provided on the upper surface of the base 1, parallel to or perpendicular to the left and right guide bars 7, 7, respectively.
Guide plates 69, 69' are slidably fixed in the concave grooves 1'' with knob screws 70, 70', and are provided to serve as a set position for workpieces of the same width and as a vice aid.

Further, a vice means 71 for pressing the workpiece W from the side surface and holding it against the front surface of the upper and lower guide plates 3 is provided separately from the vice means 71a.

As shown in FIG. 3, this vice means 71 has a plurality of mounting holes 1a..., 1b... arranged in a row on both left and right sides of the base top surface 1' so as to be orthogonal to the base top surface 1', and in the front and rear direction. Vise holders 72 are selectively provided in the mounting holes 1a..., 1b at appropriate intervals.
The lower end of the screw hole 7 is fitted and held as shown in FIG.
Insert the vise screw 73 into 2a, and
The workpiece W is clamped and held between the upper and lower guide plates 3 by a vice 74 rotatably supported at the tip of the guide plate 3.

In the above structure, when machining the dovetail groove 75 illustrated in FIG. 9 on the workpiece W using this, the workpiece W is placed on the upper surface 1' of the base, and the vice means 71 or 71a is The workpiece W is clamped to the upper surface 1' of the base. Prior to this, the link handle 14 of the link feeding means b is rotated downward to move the upper and lower guide frames a and the cutter part 27 to the upper surface of the base 1'. After the cutter 39 has descended to a position below the base upper surface 1' and the workpiece W has been clamped as described above, the motor 30 is started. Next, the link handle 1 of the link feeding means b
At the same time as rotating 4 upward, the screw feeding means c
The shape of the copying groove 51' is changed by rotating the handle 17 to move the cutter part 27 vertically and horizontally and moving the guide pin 54 along the inner circumferential surface of the copying groove 51'. A dovetail groove 75 shown in FIG. 9 corresponding to the above can be formed on the side surface of the workpiece W.

At this time, if the handle 17 of the screw feeding means c is turned too much, the cushioning means d absorbs the axial impact force of the feeding screw rod 16, so that the guide pin 54 is constantly pressed against the inner peripheral surface of the tracing groove 51'. It will be moved in a state that

Also, the guide pin 5 for the copy groove 51'
4 is moved in the vertical direction by manually operating the link handle 14 of the link feeding means b, so that the guide pin 54 can always be subjected to an appropriate pressing load against the inner circumferential surface of the copy groove 51'.

[Effect of idea]

Since the copying router according to the present invention is configured as described above, the vertical feeding of the blade part 27 can be done quickly and smoothly by the rotational operation of the link handle 14 of the link feeding means b, and moreover, the copying groove 5
The guide pin 54 can always be placed under an appropriate pressing load against the inner circumferential surface of 1', and the left and right feeding can be finely fed by the screw feeding means c, so biaxial scanning operations can be performed. Since it can be done easily and with high precision, if the proposed router is used, it is possible to improve the accuracy of copying with easy operation, and in addition to the screw feeding means c that feeds left and right, the link feeding means b that feeds vertically is used. So the knife part 27
The feeding means can be simplified, and the copy groove 51' can be easily formed by fixing the template 51 to the upper part of the upper and lower guide plates 3, so that the copy router can be simplified and miniaturized.

[Brief explanation of drawings]

Figure 1 is a front view showing an embodiment of the copying router according to the present invention, Figure 2 is a left side view of the same embodiment, and Figure 3 is a left side view of the same embodiment.
The figure is a plan view of the same embodiment, FIG. 4 is a view taken in the direction of the arrow A in FIG. 1, FIG. 5 is a view taken in the direction of the B arrow in FIG. , Figures 7 and 8 are - lines in Figure 1, -
FIG. 9 is an enlarged cross-sectional view taken along each line, and FIG. 9 is a perspective view of a workpiece showing an example of copying processing. 1... Base, 1'... Upper surface of base, 3... Upper and lower guide plates, 3a, 3b... Guide grooves,
5, 6...Upper and lower guide, 7,7'...Guide bar,
9... Fulcrum shaft, 14... Link handle, 16...
...Feed screw rod, 27...Cutter section, 30...Motor, 32...Horizontal shaft, 51...Template, 5
1'... Copy groove, 54... Guide pin, 54a
...Guide pin holder, a...Upper and lower guide frame,
b...Link feeding means, b'...Link mechanism, c...
...screw feeding means.

Claims (1)

[Scope of utility model registration request] In a copying router that performs profiling by vertically and horizontally moving a cutter unit equipped with a motor and a chuck for attaching a cutter on the horizontal axis that interlocks with the base, the left and right feed of the cutter unit is controlled by the base unit. The frame consists of left and right guides that are vertically movably engaged in vertical guide grooves installed on the left and right sides of the upper and lower guide plates fixed on both sides of the frame, and two parallel guide bars that support the blade part so that it can be moved left and right. A feed screw rod for feeding the cutter part is installed parallel to the guide bar and rotatably in the upper and lower guide frames formed as a screw feed means, and the vertical feed is controlled by a fulcrum shaft with one end attached to the base. A link handle is connected to a link mechanism b' which is pivotally supported and whose other ends are pivotally connected to the left and right guides, respectively, to form a link feeding means.Furthermore, a template is fixed to the upper part of the upper and lower guide plates, and a template is fixed to the upper part of the upper and lower guide plates. A copy groove is formed in a direction perpendicular to the upper surface of the base, and a guide pin holder is provided upright from the blade part, and a guide pin is formed parallel to the horizontal axis of the blade part, and the guide pin is fitted into the copy groove. A copying router characterized by: