JPH09155701A - Polishing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To polish the upper blade or the lower blade of the teeth of a chip saw with an existing disk polishing machine without changing the mounting position of the disk polishing machine. SOLUTION: A chip saw 5 is mounted in either one position of an upper blade polishing position or a lower blade polishing position on a table 1 so as to be capable of rotating, demounting, and adjusting the mounting position. A claw plate 6 is mounted in the other position of the both positions so as to be capable of adjusting the position and demounting, and engaged with the teeth of the chip saw 5 with a spring 8, so as to be capable of rotating the chip saw 5 one tooth by one tooth only in the one direction. A disk polishing machine 11 is foxed to a holder 9 mounted on the table 1 so as to be capable of rotating, so that the disk grinder 11 is capable of changing the direction, and positioned with a stopper 13 fixed to the table 1 so as to be capable of adjusting the position. In the state that the holder 9 is positioned with the stopper 13, a polishing wheel 12 of the disk polishing machine 11 polishes the upper teeth or the lower teeth of the chip saw 5 at the specified clearance angle or face angle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing machine which can be attached to an existing disc grinder, a circular saw or the like to sharpen a tip saw for woodworking, mowing or cutting light metal.

[0002]

2. Description of the Related Art In many cases, sharpening of a tip saw is performed by grasping the tip saw with one hand and holding a disc grinder with the other hand and attaching a magnet wheel or diamond wheel (hereinafter referred to as a grinding wheel) to the tip of the tip saw. Although it is done by applying and polishing, it is not easy to grind the tip saw with one hand and the disc grinder with the other hand, and to grind all the teeth of the tip saw uniformly. Is more difficult and requires considerable skill.

There are also known a polishing machine in which a tip saw is detachably attached and a disk grinder is attached, and a polishing machine which automatically sharpens the tip saw.

[0004]

Many of the conventional polishing machines for sharpening the tip saw are capable of polishing the top blade with a constant clearance angle, but not the belly blade. . There is also known a grinding machine that can change the mounting position of the disc grinder to polish the top and belly blades of the tooth, but it is troublesome to change the mounting position of the disc grinder to polish the top or belly blade of the tooth. is there.

An automatic machine capable of polishing the top and belly teeth of a tooth is also known, but its structure is complicated and expensive. The present invention provides a polishing machine capable of polishing a top blade or a belly blade of a tooth of a tip saw by using an existing disc grinder, a circular saw or the like without changing a mounting position of the disc grinder, the circular saw or the like. With the goal.

[0006]

In the polishing machine of the present invention, a tip saw is attached / detached and rotatably rotatably supported by a spindle at a top blade polishing position or a belly blade polishing position, and rotatably attached to the table. A holder, a disc grinder or a circular saw that is detachably attached to the holder, and a grinding wheel attached to the disc grinder or the circular saw is attached to the top blade of a tip saw that is pivotally supported at the top blade polishing position, or to abdominal blade polishing. A stopper that engages with one side of the holder to position the holder so that it is positioned at the polishing position applied to the belly blade of the tip saw pivotally supported at the position,
After the tip saw is pivotally mounted on the table at the top blade polishing position or the belly blade polishing position by the support shaft, the disc grinder or circular saw and the holder are rotated in the direction in which the holder moves away from the stopper to move the polishing wheel from the polishing position. After once detached, the tip saw is rotated by a certain amount, and the polishing wheel is applied to the top blade or belly blade of the tip saw for polishing.

The polishing machine of the present invention is preferably provided with a one-way clutch so that the tip saw can be rotated only in one direction, and is provided with intermittent feeding means capable of rotating the tip saw by a fixed amount in one direction. Is more desirable. In order to allow the tip saw to rotate in only one direction, or to rotate in a fixed amount in one direction, a one-way clutch may be attached to the support shaft or intermittent feeding means may be provided.
Only when the tip saw is attached to the teeth of the tip saw by turning the tip on the table so that it can be rotated in one direction by the action of a spring and turning the tip saw in one direction, the jaws successively move to the next tooth. It is good to hit. The former support shaft with a one-way clutch or intermittent feed means tends to have a complicated support shaft structure, while the latter pawl has the advantage of a relatively simple structure. , When using nails,
The pawl is preferably made removable, and more preferably one of the two positions for axially attaching the tip saw, that is, the tip saw is in the abdominal blade polishing position when the tip saw is pivotally supported in the top blade abrading position, and the tip saw is abdominal blade abrading. When it is pivotally supported at the position, it is detachably mounted at the top blade polishing position. The claw can be removed when it is not needed, so it does not get in the way, and if the tip saw is pivotally supported at the position where it is pivotally mounted, it is a support shaft for attaching the tip saw or a mounting hole drilled in the table for mounting the support shaft. Can be used to attach the nail.

It is desirable that the spindle for pivotally supporting the tip saw and the spindle for pivotally mounting the claw can be positionally adjusted according to the size of the tip saw. It is desirable that the stopper for positioning the holder can be adjusted in position, so that the positioning position of the holder can be adjusted, and the inclination of the polishing wheel can be changed according to the relief angle of the top blade and the rake angle of the belly blade. It is desirable that the disc grinder or the circular saw attached to the holder can also be mounted at different angles depending on the side relief angle of the top blade or the side rake angle of the belly blade.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A vertical groove 2 in the front-rear direction is formed in the center of a table 1, and a slightly inclined lateral groove 3 is formed in the upper left end.
After the bolt 4 serving as a support shaft is passed through the shaft center of the tip saw 5 and the vertical groove 2 or the horizontal groove 3, a wing nut (not shown) is screwed into the bolt end projecting under the table so that the top edge polishing position or the belly position is increased. At the blade polishing position, the tip saw 5 is adjusted within the range of the vertical groove 2 or the horizontal groove 3 and the bolt 4 is moved.
Is rotatably attached by a shaft.

When the tip saw 5 is axially attached to the vertical groove 2 for polishing the top blade, it is attached to the lateral groove 3, and when the tip saw 5 is axially attached to the lateral groove 3 for abdominal blade polishing, it is attached to the vertical groove 2. The claw plates 6 are pivotally mounted by bolts 7 and wing nuts (not shown) so that their positions can be adjusted. The claw plate 6 is biased by a spring 8 so as to rotate in one direction, and engages with the teeth of the tip saw 5 so that the tip saw 5 can rotate only in one direction.

A holder 9 made of a hugging metal is rotatably attached to the table 1 at the upper right end thereof, and a disc grinder 11 is hugged and fixed to the holder 9 to change the mounting position of the grinder 11 to the holder 9. With this, the direction of the polishing wheel 12 attached to the grinder 11 can be changed. In the figure, 13 is a stopper that is attached to the table 1 so that its position can be adjusted and that positions the holder.

This apparatus is constructed as described above, and when polishing the top blade of the tip saw, as shown in FIGS. 1 and 2, the tip saw 5 is placed at the center of the table and the tip saw 5 and the vertical groove 2 are bolted. 4, the tip saw 5 is moved within the range of the vertical groove 2, the top blade is brought into contact with the polishing wheel 12 of the disc grinder 11 positioned by the stopper 13, and the position of the stopper 13 is adjusted to make the clearance angle of the top blade. The inclination of the polishing wheel 12 is changed in accordance with the condition, and the bolt 4 is fixed by screwing a wing nut into the projecting end of the bolt 4 under the table with the polishing wheel 12 hitting the top blade at a predetermined clearance angle, and the stopper Fix 13
Then, the position of the claw plate 6 is adjusted within the range of the lateral groove 3, and the claw plate 6 is brought into contact with the belly blade of the tooth of the tip saw 5 so that the tip saw 5 can be rotated only in the counterclockwise direction in the drawing (see FIG. 1). This nail plate 6
May be attached before the tip saw 5 is attached.

After setting as described above, the tip saw 5 is grasped by one hand, the disc grinder 11 which is turned on is grasped by the other hand, and the holder 9 is stopped by the stopper 13.
The top blade is polished at a predetermined clearance angle while being positioned in. When the grinding of the top blade of one tooth is completed, the disc grinder 11 is rotated in the direction in which the holder 9 is separated from the stopper 13 as shown in FIG. 2, so that the grinding wheel 12 is once separated from the top blade, and then the tip saw 5 is drawn. Rotate in the direction of the arrow 2 to bring the claw plate 6 against the belly blade of the next tooth, and push it against the claw plate 6 and rotate the disc grinder 11 with the tip saw 5 held until the holder 9 contacts the stopper 13. Then, the polishing wheel 12 is applied to the tooth top blade and the same polishing as above is performed (FIG. 1).

By repeating the above work, the top blade is polished all around the tip saw. When the top blade is ground at a predetermined side clearance angle, the disc grinder 11 for the holder 9 is used.
The mounting angle is changed, and the grinding wheel 12 is ground so as to hit the top blade at a predetermined side clearance angle. When polishing the belly blade of the tip saw 5, as shown in FIG. 3, the tip saw 5 is placed on the upper left part of the table 1, and bolts are passed through the tip saw 5 and the lateral groove 3 to move the tip saw 5 within the range of the lateral groove 3 to the stopper 13. The grinding wheel 12 of the disc grinder 11 thus positioned is contacted with the belly blade, and the stopper 13 is adjusted in position to change the direction of the grinding wheel 12 according to the rake angle of the belly blade. The bolt 4 and the stopper 13 are fixed in a state of hitting at the corner. Then, the position of the claw plate 6 is adjusted within the range of the vertical groove 2, and the claw plate 6 is brought into contact with the teeth of the tip saw 5 so that the tip saw 5 can be rotated only in the clockwise direction in FIG. Also in this case, the claw plate 6 may be attached before attaching the tip saw.

After setting as described above, the tip saw 5 is grasped with one hand, the teeth are pressed against the claw plate 6, and the disc grinder 11 is rotated until the holder 9 comes into contact with the stopper 13 with the teeth positioned, and the polishing wheel 12 is removed. Apply to the belly blade of the tooth and polish. After polishing one tooth,
Similar to the above, the tip saw 5 is rotated and the polishing wheel 12 is pressed against the abdominal blade to perform polishing. By repeating the above work, the abdominal blade is polished all around the tip saw.

When polishing the belly blade at a predetermined side rake angle, the mounting angle of the disc grinder 11 with respect to the holder 9 is changed, and the polishing wheel 12 is ground so as to hit the belly blade at the predetermined side rake angle.

[0017]

The present invention is configured as described above and has the following effects. According to the polishing machine of claim 1, the tip saw or the abdominal blade is abraded by attaching the tip saw to the top blade polishing position or the abdominal blade polishing position by the spindle while the disc grinder or the circular saw is attached to the holder. Can also do existing disc grinders,
Alternatively, a circular saw can be used, and the structure is simple because it only requires a table, a holder and a stopper.

According to the polishing machine of the second aspect, the tip saw can be rotated by one tooth in one direction, and each top blade or abdominal blade can be polished easily and surely, and moreover, it can be pivotally attached to the table. The structure is simple because only the claws and the springs that bias the claws to rotate in one direction are provided. If the nail can be removed as in the polishing machine according to the third aspect of the invention, it can be removed when it is not needed so as not to get in the way.

According to the polishing machine of the fourth aspect, by adjusting the position of the support shaft according to the size of the tip saw,
It is possible to polish tip saws of various sizes. If the position of the stopper can be adjusted as in the polishing machine according to the fifth aspect, the inclination of the polishing wheel can be changed according to the clearance angle of the top blade and the rake angle of the belly blade.

If the mounting angle of the disc grinder or the circular saw can be adjusted as in the polishing machine according to claim 6, the inclination of the polishing wheel can be changed according to the side relief angle of the top blade and the side rake angle of the belly blade. Can be changed.

[Brief description of the drawings]

FIG. 1 is a plan view showing a polishing machine at the time of polishing a top blade.

FIG. 2 is a plan view showing a state where the polishing wheel is separated from the top blade.

FIG. 3 is a plan view showing a polishing machine when polishing a belly blade.

[Explanation of symbols]

1 ・ ・ Table 2 ・ ・ Vertical groove 3 ・ ・ Horizontal groove 4 ・ ・ Bolt 5 ・ ・ Tip saw 6 ・ Claw plate 7 ・ ・ Bolt 8 ・ ・ Spring 9 ・ ・ Holder 11 ・ ・ Disk grinder 12 ・ ・ Grinding wheel 13 ・ ・stopper

Claims (6)

[Claims] 1. A table for rotatably and rotatably supporting a tip saw by a support shaft at a top blade polishing position or a belly blade polishing position, a holder rotatably attached to the table, and a holder removable from the holder. Of the disc grinder or circular saw to be attached and the grinding wheel attached to the disc grinder or circular saw to the top blade of the tip saw that is pivotally supported at the top blade polishing position, or of the tip saw that is pivotally supported at the belly blade polishing position. A polishing machine comprising a stopper that engages with one side of a holder and positions the holder so that the holder is positioned at the polishing position applied to the belly blade. 2. A table is provided with a pawl that is axially urged by a spring so as to be rotatable in one direction, and is contacted with teeth of a tip saw so that the tip saw can rotate only in one direction. The polishing machine according to Item 1. 3. The polishing machine according to claim 2, wherein the claw is removable. 4. A position adjustment is possible for the support shaft for supporting the tip saw and the support shaft for supporting the claw, respectively.
The polishing machine described. 5. The position of the stopper is adjustable.
A polishing machine according to any one of claims 1 to 4. 6. The polishing machine according to claim 1, wherein the disc grinder or the circular saw has an adjustable mounting angle with respect to the holder.