JPS5852881Y2 - Chamfer plane stand for woodworking - Google Patents

Description

[Detailed description of the invention] This invention relates to a chamfering table for woodworking that slightly cuts the edge angle of a square lumber, and a through hole is formed in the center of the blade mounting slope that is attached almost to the surface of the truncated cone. A plate-shaped cutter with a circular blade edge partially protruding from the table surface is joined, and a mounting member that is vertically erected with eccentric rotation on the cutter mounting slope is passed through the through hole in a tight fit. Then, the plate-shaped cutter is crimped and fixed to the blade mounting slope by a bullet placed on the head of the mounting member, and the rotation of the plate-shaped cutter that sequentially changes the protruding edge portion is caused by the pressing force of the bullet. Converting the edge of the blade whose sharpness has deteriorated due to resistance to the edge of the blade with sufficient sharpness,
By utilizing the unique shape of the dish-shaped cutter and the action of the bullet, it is easy to remove the cutting edge. Rotate the mounting member to adjust the eccentricity of the member,
This allows a portion of the edge of the blade to be adjusted to the required amount of protrusion.

It is common practice to attach a straight-edged fixed blade to a beveled nameplate for woodworking, but the cutting edge needs to be removed and re-sharpened or replaced each time its sharpness deteriorates, resulting in long downtime. I need to take it.

Other methods include installing disposable blades that do not require resharpening, but this is extremely wasteful.

The present invention aims to eliminate such drawbacks, and embodiments thereof will now be described with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a truncated cone, and a blade mounting slope 3 is provided so as to substantially coincide with the table surface 2 and face a blade opening 5 which is fixed to a mounting portion 4 with a mounting screw 6.

7 is a dish-shaped cutter with an oblique cutting surface 8 formed on the curved surface and a circular cutting edge 9 formed by baking a cemented carbide cutting alloy;
A concentric cylindrical protrusion 10 is provided on the side of the cutting edge 9, and the inner periphery is a through hole 11 of the dish-shaped cutter 7. A second through hole 11a with a slightly smaller diameter is provided at the back of the hole 11, and the cylindrical protrusion 10 has a concentric cylindrical protrusion 10. A male thread 12 is provided on the outer periphery of the base, and several tapped holes 13 are provided in an annular shape at a portion closer to the protruding end.

Reference numeral 14 denotes a set screw which is fitted in the through hole 11 formed by the cylindrical projection 10 of the dish-shaped cutter 7 so as to be relatively rotatable, and which is screwed into the screw hole 13 of the cylindrical projection 10 with respect to the annular groove 16 formed on the outer periphery. 17 is fitted and supported, the first mounting member is provided with an eccentric hole 18 and a rotation operation hole 19 on the outer periphery, and has an inner end surface 1
5 and the stepped surface 20 of the hole edge of the second through hole 11a.
Insert 1.

Reference numeral 22 denotes a threaded portion 2 provided at the tip, which passes the headed shaft portion through the eccentric hole 18 of the first mounting member 14, and is loosely inserted into the second through hole 11a.
3 is screwed into a threaded hole 3a formed in the blade mounting slope 3 and stands perpendicular to the mounting slope 3, and the dish-shaped blade 7 is connected to the second mounting member 22 and the first mounting member The member 14 and the bullet 21 rotatably press against the blade mounting slope 3 to project a part 9a of the blade edge 9 onto the table surface 2.

Reference numeral 24 denotes a back blade formed in a circular shape centered on the center of the eccentric hole 18 of the first mounting member 14, and a fitting hole 25 that tightly fits into the cylindrical protrusion 10 so as to be relatively rotatable. It is formed by a center that coincides with center a of .

Of course, this fitting hole can also be a large-diameter hole 25a centered on the center of the eccentric hole 18, as shown in FIG.

In this case, the above-mentioned fitting hole 25 is hidden.

The back blade 24 is fixed by a nut 26 screwed onto the male thread 12 of the cylindrical projection 10.

In this embodiment, the first mounting member 14 is fixed to the second mounting member 22 while the back blade 24 is fixed to the dish-shaped cutter 7 with the nut 26.
The blade 7 is rotated around the blade 7 to interlock the blade 7.

Although the plate-shaped cutter 7 is pressed against the cutter mounting slope 3 by the bullet 21, this does not mean that it cannot rotate at all, but because it rotates eccentrically around the second mounting member 22 due to the rotation operation described above, the cutting edge The degree of protrusion of the portion 9a of the edge 9 onto the table surface 2 is changed.

Therefore, the degree of protrusion is determined, and then the nuts 26 are loosened, and the back plate 24 is aligned with the portion 9a as shown in FIG. 2 and fixed again with the nuts 26.

This chamfering gun turret is inserted and fixed in a drawer shape into a knife stock groove provided in a material feeding surface plate of a woodworking machine such as a woodworking machine, a super finishing plate, etc. The diameter line in the lateral direction in FIG. 2 may be slightly inclined with respect to the width direction of the material feeding surface plate.

In addition, a ruler plate or a feeding material guide plate is fixed on both sides of the part 9a of the cutting edge 9 protruding from the table surface on the feeding material surface plate in alignment with both sides of the square material, so that one edge angle of the square material is facing downward. It is necessary to make it possible to do so.

When a portion 9a of the blade edge 9 is worn out and its sharpness deteriorates, loosen the setscrew 17 and tighten the through hole 1 around the first mounting member 14.
1 is slightly rotated in one direction to replace the part 9a of the cutting edge 9 of the dish-shaped knife 7 with a sharp part.

During this operation, the first mounting member 14 is integrally connected to the second mounting member 22 due to the elasticity of the bullet 21, so that when the plate-shaped cutter 7 rotates by a small angle against the bullet 21, There is no need to fix the first attachment member 14.

In most cases, the back blade 24 is adjusted to match the portion 9a as described above by loosening the nut 26 after the above-mentioned rotation operation of the plate-shaped blade 7.

As clarified by the above description, the present invention has a through hole 11 in the blade mounting slope 3 of the frustum 1 and the mounting member 14.22.
A dish-shaped cutter 7 is fitted and pressed by a bullet 21 applied to the member, and a part 9a of the circular cutting edge 9 protrudes from the table surface 2, and the blade width required for chamfering is extremely small. It is possible to use a relatively large-diameter dish-shaped cutter 7 to perform a substantially smooth chamfer, and
When the sharpness of the protrusion deteriorates, the protrusion can be replaced one after another by only rotating a small angle in one direction, so the number of times the cutting edge edge 9 is polished can be minimized.

Further, the rotation operation can be easily performed against the elasticity of the ammunition 21.

Furthermore, when the outer diameter of the dish-shaped cutter 7 is reduced by polishing the cutting edge 9, the degree of protrusion of the part 9a of the cutting edge 9 can be kept constant by eccentrically rotating the mounting member fitted with the through hole 11. It has excellent effects such as:

[Brief explanation of the drawing]

The attached drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal cross-sectional side view of the frustum 1 cut at the center of the dish-shaped cutter 7, and Fig. 2 is a part of the frustum 1 seen from the direction of the arrow A in Fig. 1. The cutaway front view and FIG. 3 are plan views of other embodiments of the back blade. 1 → Planer stand, 2 → Table surface, 3 → Blade mounting surface, 5 → Blade mouth,
7→Dish-shaped cutter, 9→Blade edge, 9a→Part, 11→Through hole, 14→First mounting member, 15→Inner end surface, 18→Eccentric hole, 20→Step surface, 21→Bullet machine, 22→ Second mounting member.

Claims (1)

[Scope of utility model registration request] The blade mounting slope 3 corresponding to the blade opening 5 that is mounted almost in line with the table surface 2 has a dish-shaped shape having a through hole 11 in the center and a part 9a of the circular blade edge 9 protruding onto the table surface 2. At the same time as joining the blade 7, the blade mounting slope 3 is allowed to eccentrically rotate, and the mounting member 14, 22 is vertically passed through the through hole 11 in a tight fit, and the bullet 21 placed on the mounting member is used to countersunk the blade. The shaped cutter 7 is crimped and fixed to the cutter mounting slope 3, and the disk-shaped cutter 7 is rotated against the crimping force of the bullet 21 to sequentially change the protruding edge portions of the blade. A chamfered fishing stand for woodworking.