JPS5820326Y2 - Turret device for woodworking super finishing planer - Google Patents

Description

[Detailed description of the invention] In this invention, a cutting unit consisting of a planer blade and a back blade fixed to the surface of the planer blade is attached to the blade mounting slope using a tightening bolt, and a blade edge protrusion adjustment device is used to adjust the above-mentioned installation. It is possible to easily adjust the amount of protrusion of the cutting edge of the planer blade by moving the integrated object while cutting, and when the material to be cut comes in contact with the cutting edge, the greater the contact force, the tighter the tightening. This invention relates to a tool rest device for a super finishing planer for woodworking that has a structure that increases the contact force against the blade mounting slope of the cutting unit and stabilizes the installation even though bolts are not used.The purpose of this device is to To provide a tool post device which can stably mount a cutting unit consisting of a planer blade and a back blade, and can adjust the protrusion amount of the blade edge even during cutting.

Conventionally, a blade tip protrusion adjustment device was provided at the rear end of a planer blade that was in close contact with the blade mounting slope of the mount and tightened and fixed with a tightening bolt, or a cutting unit with a back blade fixed to the surface of the planer blade. The turret device for a super finishing planer is well known;
In order to adjust the protrusion amount of the cutting edge by moving the planer blade using the above-mentioned blade tip protrusion amount adjusting device, it was necessary to loosen the tightening bolt.

However, since the amount of protrusion of the cutting edge must be adjusted several times and the amount of protrusion determined by trial cutting, the tightening bolt must be loosened and tightened each time before the final adjustment. The drawback was that it was extremely difficult to operate.

The present invention eliminates this drawback and has a structure that allows free adjustment even during cutting.

Several embodiments of the present invention will be described.

Figures 1 and 2 show the first embodiment, in which the mounting base 1 is provided with a relief surface 4 at the rear and lower part of the mounting slope relative to the blade mouth 2, and a fine contact surface 3 is formed at the tip. A shoulder bolt 8 having an angular relationship perpendicular to the planer blade 13 (to be described later) is installed on the rear lower flank of the contact surface 3, and the shoulder bolt 8
A blind hole 6 is bored in the rear and lower part of the elastic body 9 made of a coil spring.
fill in some of the

The back and lower part of the flank 4 has a deeper hem 5, and raised pieces 7, 7 are provided on both sides.

A back blade 19 is fixed to the front surface 16 of the planer blade 13 with a screw, so that the planer blade 13 and the back blade 19 form a cutting unit, and the front edge of the back surface 17 near the cutting edge 15 is brought into close contact with the contact surface 3. The rear edge of the back surface 17 is brought into contact with the elastic body 9, and the stepped bolt 8 is passed through the long hole 14 in the front-rear direction. Fit the washer 11 until it touches the stepped part 10, and then tighten the nut 1.
2 to press the washer 11 against the surface 16 of the rigid blade 13 pressed by the elastic body 9.

In the above, the contact surface 3 and the stepped bolt 8 and the stepped bolt 8
The distances between the centers of the elastic body 9 and the elastic body 9 are approximately equal.

The planer blade 13, which is a one-piece cutting device, is in contact with the contact surface 3 and the elastic body 9 near the front edge and rear edge of the back surface, the washer 11 with the front surface 16, and two points on the back surface and one point on the front surface. It is supported at a total of three points and becomes parallel to the contact surface 3.

An adjustment screw 21 having a rotary grip 22 on the rear side is screwed into the raised pieces 7, 7, and a part of the large diameter collar 23 formed at the front end of each screw 21 is inserted into the rigid blade 13. It is rotatably fitted into horizontal grooves 18 provided on both rear sides of the back surface 17.

The adjustment screw 21 is an example of a blade tip protrusion adjustment device J.

FIG. 3 shows that the rear side of the rigid blade 13 of the cutting unit of the first embodiment is shortened, and the rear end of the back blade 19 is made to protrude to the rear side of the rigid blade 13 to form the sleeve surface 5. An eccentric cam 3 is provided with a horizontal groove 31 facing the lateral groove 31, and is attached to the mounting base 1 so as to be freely rotatable and passed through the horizontal groove 31.
3 to form a blade edge protrusion amount adjusting device J.

FIG. 4 shows a third embodiment of the present invention, in which an auxiliary piece 41 with a square cross section corresponding to the lining surface 5 is fixed to the rear end of the back surface of the planer blade 13 in the cutting unit with a screw, and a blind hole is 6 is provided on the sleeve surface 5, and the elastic body 9 fitted thereon indirectly contacts the planer blade 13 via the auxiliary piece 41.

Further, an adjusting screw 43 with a ring 44 exposed on the rear side is fitted into the protruding pieces 7, 7, and a male screw 45 formed at the tip of the screw 43 is inserted into a female screw hole 42 formed on the rear end surface of the auxiliary piece 41. The blade tip protrusion amount adjustment device J is screwed together with the adjustment screw 43.

FIG. 5 shows a third embodiment, in which the rear end of the planer blade 13 in the cutting unit is shortened as in the second embodiment, and the back edge 19 in the cutting unit is attached to the rear side of the planer blade 13. An extension part 51 is provided, and a blind hole 6a corresponding to the flank face 4 is provided in this extension part 51, and an elastic body 9 made of a coil spring fitted in the blind hole 6a is pressed against the flank face 4, and the raised pieces 7 on both sides, The male threaded portion 54 of the adjusting screw 53, which is fitted freely only in rotation to the extension portion 5, is inserted into the extension portion 5.
The other parts are the same as those in the first and second embodiments.

The adjustment screw 53 is an example of a forward delivery amount adjustment device.

In addition to the coil springs shown in the figures, the elastic body 9 of each of the above embodiments uses a plate spring, a rubber spring, etc., and uses its spring elasticity to press the surface of the planer blade 13 against the washer 11 to fix it in place. In addition, each blade edge protrusion amount adjusting device J has elasticity that allows the cutting unit, which is a fixed body of the rigid blade 13 and the back blade 19, to move in and out of the blade edge 15 freely.

The present invention does not fix the planer blade 13 immovably to the blade mounting slope by tightening it as shown in each of the above-mentioned embodiments. It is supported by a thin line-shaped contact surface 3 and an elastic body 9, and supported by a washer 11 at one point in the center of the surface in the front-rear direction, and the above three-point support allows fixation similar to fixation by tightening a tightening screw. In addition, it is possible to freely adjust the amount of protrusion of the cutting edge 15 by making a small amount of movement using the blade extension amount adjusting device J. 15, the cutting resistance P' received by the cutting edge 15 is a force in the R direction and a force in the S direction. presses the cutting unit against the blade extension adjustment device J.

The S-direction component force presses the back surface 17 of the cutting unit against the contact surface 3 which is the first support point, and the reaction force becomes a pressing force T which presses against the washer 11 which is the second support point.

Therefore, the pressing force V acting on the cutting unit of the elastic body 9 is in the same direction as the pressing force T, and acts as a boosting lever against the stubborn blade 13 with the contact surface 3 as the fulcrum. Therefore, the larger the cutting resistance P' becomes, the more stable the attachment of the cutting integral object becomes.

Therefore, even during heavy cutting, chatter does not occur in the tip 15.

The present invention has the structure and action clarified by the above explanation, and the protrusion degree of the cutting edge 15 is adjusted by finely moving the cutting unit back and forth using the blade tip protrusion adjustment device J without taking a break from the cutting operation. In addition, it has a practical effect that the planer blade 13 can be attached without causing chatter.

[Brief explanation of drawings]

The attached drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional side view of the first embodiment, FIG. 2 is a front view seen from the direction of the arrow hole in FIG. 1, and FIG. 3 is a diagram showing the second embodiment. FIG. 4 is a longitudinal side view of the third embodiment, FIG. 5 is a longitudinal side view of the fourth embodiment, and FIG. 6 is an explanatory diagram. 1 → Mounting base, 3 → Liquid contact, 5 → Clipping surface, 8 → Stepped bolt, 9 → Elastic body, 11 → Washer, 12 → Nut, 13 → Stubborn blade, 14 → Long hole, 15 → Cutting edge , 19 → back blade, 2o → long hole.

Claims (1)

[Scope of utility model registration request] On the blade mounting slope of the mount, a fine contact surface is formed at the tip with the rear lower side as a relief surface, and a step bolt is placed vertically on the rear side of the contact surface, and the back side is placed on the surface of the planer blade. A stepped bolt is passed through a long hole shaped in the cutting unit to which the blade is fixed, and a washer pressed by a nut screwed into the stepped bolt is brought into contact with the surface of the cutting unit, and the stepped bolt is pressed. An elastic body is provided which makes elastic contact with the back surface and the flank surface of the cutting object at the lower rear, and two points on the back surface and one point on the surface of the cutting object are connected as contact surfaces,
A tool rest device for a woodworking super finishing planer, characterized in that it is supported and mounted by an elastic body and a washer, and a cutting edge protrusion adjustment device J is connected to the rear side of the integrated planer cutting device.