JPH0929542A - Polishing machine - Google Patents

Abstract

(57) [Summary] [Objective] Use a circular saw to polish the back and rake surfaces of the teeth of the tip saw. [Structure] A circular saw is attached to the table, and the inclination of the diamond wheel 27 protruding above the table 17 through the slit 26 is adjusted by changing the attachment angle.
A screw 34 is screwed into the table surface, and the adjustment plate 32,
33 is fixed by a screw 34 fitted into the long grooves 32a, 33a and a wing nut screwed into the projecting end so that the mounting position and the angle can be adjusted. Pins 36 project from one end of each of the adjusting plates 32 and 33, and the tip saw is positioned by fitting the pin 36 into the roots between the teeth of the tip saw 29. After setting the inclination of the diamond wheel 27 to a predetermined angle, the rake face is brought into contact with the diamond wheel 27 to perform polishing at a predetermined rake angle. When polishing the tooth back surface, the adjusting plate 32 fixed at another position is used. ,
Position the tip saw with 33, and use the wheel 27 on the back of the teeth.
Touch and polish.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grinding machine capable of sharpening a saw or saw by attaching an existing circular saw or a disc grinder via an adapter.

[0002]

2. Description of the Related Art In many cases, sharpening of a tip saw is performed by holding a tip saw with a cantilever and holding a disc grinder with another hand and attaching a magnet wheel, a diamond wheel (hereinafter referred to as a polishing wheel), to the tip of the tip of the tip saw. It is not easy to hold the tip saw with one hand and the disc grinder with the other hand, and all the teeth of the tip saw are evenly and evenly ground. It is more difficult to do 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. On the other hand, the sharpening of the saw is usually performed by grasping the saw with one hand or clamping it with a jig such as a vise and holding the file with another hand to grind the teeth.

[0004]

In the tooth profile of the tip saw, as shown in FIG. 1, all teeth are plain tooth longitudinal grinding teeth, as shown in FIG. 2, lateral grinding teeth in which teeth are alternately assembled, and FIG. There are three basic types of dual-purpose teeth that can be used both vertically and horizontally as shown in.
Polishing is generally performed on the back and rake faces of these teeth, but there are various clearance angles, rake angles, or rake angles.

In many conventional polishing machines, the back surface of a tooth can be polished at a constant clearance angle and a grazing angle, and it is not possible to carry out grinding while changing the clearance angle and the rake angle. Can not be polished. There is also a polishing machine that can change the mounting position of the disc grinder so that the back surface of the tooth and the rake surface can be polished, but even with such a machine, it is not possible to perform polishing with changing the clearance angle, the rake angle or the rake angle. It is not possible to grind the lateral ground tooth and the dual-purpose tooth in FIG. In addition, it is troublesome to change the mounting position of the disc grinder for polishing the back surface and the rake surface of the tooth.

[0006] The back surface of the tooth is easy to form a clearance angle and a filing angle,
Alternatively, there is an automatic machine capable of changing the rake angle and polishing, but it has a complicated structure and is expensive. A first object of the present invention is to provide a polishing machine capable of polishing the back surface and rake face of teeth, and a second object thereof is to provide a polishing machine capable of polishing lateral grinding teeth. It is what

A third object of the present invention is to provide a grinding machine capable of grinding a tooth profile having a different flank angle and a different bevel angle, and a fourth object is to provide a tooth profile having a different clearance angle, or An object of the present invention is to provide a polishing machine capable of polishing a tip saw having different sizes and different pitches between teeth.
Further, a fifth object is to provide a polishing machine capable of sharpening a saw.

[0008]

A polishing machine for achieving the first object is provided with a table with legs having slits penetrating vertically and a polishing wheel, and the wheel is projected from the slit and removed under the table. A disc grinder to which a circular saw or a mounting base that can be attached is attached, a positioning means for the tooth back surface and a positioning means for the rake face, which is provided on the table and positions the tip saw placed on the table. When the tip saw placed on the table is positioned by the positioning means for the back surface, the tooth back surface hits the grinding wheel protruding from the slit of the table, the tip saw position is changed on the table, and the positioning means for the rake surface is used for positioning. , The rake face hits the polishing wheel. Thus, by changing the position of the tip saw on the table, the back surface of the tooth and the rake surface can be polished.

A polishing machine for achieving the second object is provided with a positioning means for the back surface and a positioning means for the rake face in the above-mentioned polishing machine, which are respectively provided on both sides of the slit of the table and for the right tooth and the left. The right tooth is formed by positioning the tip saw by the right tooth positioning means, and the left tooth is positioned by the left tooth positioning means to grind lateral grinding teeth. .

As a positioning means for each of the above-mentioned polishing machines, a pin that fits into the valley between the teeth is a preferable example. In this case, the pin is composed of a pair of pins, and both pins are rotated with the tip saw as a fulcrum on the table in a state where one of the pins is fitted with a root gap between the teeth, and another pin The other pin is arranged at a position where the other pin can be fitted without interfering with the teeth.

It is desirable that the positioning means or the table is provided with a display means capable of discriminating whether the positioning means is for the back rake face or for the right tooth or the left tooth. The display means is, for example, a figure of a tip saw displayed on a table, a character, a color colored on the identification means, or the like.

The polishing machine for achieving the third object is the polishing machine of the above-mentioned polishing machines, in which the angle adjusting means of the polishing wheel protruding from the table is provided. If the angle of the grinding wheel is changed while the back surface of the tooth is in contact with the grinding wheel and the angle between the grinding wheel and the table surface is changed, the back surface is ground at the included angle of this angle and the rake surface of the tooth is cut. If the angle of the polishing wheel is changed while it is in contact with the polishing wheel, the rake face is polished at the rake angle of this angle.

A polishing machine for achieving the fourth object is a polishing machine for achieving the first and second objects in which the position of the positioning means can be adjusted. The tooth back surface is adjusted by adjusting the position of the positioning means. The contact angle with respect to the polishing wheel can be changed, and the back surface of the tooth can be polished with a predetermined clearance angle. Further, even with a tip saw having a different size or a pitch between teeth, the back surface of the tooth which is easy to be backed can be applied to the grinding wheel to be ground.

For adjusting the position of the above-mentioned positioning means, when the positioning means is, for example, a pin, a method in which a threaded pin is fitted in a long hole formed in the table and tightened and fixed by a wing nut or the like, Use a method such as mounting an upward pin on an adjusting plate that is fixed by fitting a long hole or long groove into a threaded pin that is screwed and protruding onto the table and tightening a wing nut etc. on the protruding end of the pin. However, the latter method is preferable among them. In the former method, the position of the pin can be adjusted along the slot only within the range of the slot, whereas in the latter method, the adjustment plate is moved by using the slot or slot into which the pin fits as a guide, and By rotating the threaded pin as a center, the pin can be adjusted to any position on the curved coordinates.

A polishing machine for achieving the fifth object is a polishing machine for achieving the fourth object, in which at least one of positioning means capable of position adjustment is wedge-shaped pawl inserted between teeth of a saw. After adjusting the position of the claw, fit the claw between the teeth of the saw and hit the upper blade against the polishing wheel, and the upper blade is polished at the rake angle between the polishing wheel and the table. It

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 4 and 5 show a leg 16 of an existing circular saw 15 whose angle can be adjusted by screwing a wing nut 14 into a main body 12 within an arc groove 13 with respect to a base 11.
This shows a grinder attached to the lower surface of the attached table 17. The attachment of the circular saw 15 is performed by using the fixtures 19 and 20, and the table is provided in the long hole 21 of the fixture 19 and the hole (not shown) of the fixture 20 respectively. Screw 23 protruding from the upper surface
And hook the short bending portions 19a and 20a on the bending portion 11a that bends downward from the base 11, and then attach the wing nut 2 to the long hole 21 and the screw 23 protruding from the hole, respectively.
This is done by screwing in 4 and tightening.

The table 17 is formed with a slit 26 penetrating vertically, and a diamond wheel 27 attached to the circular saw 15 projects through the slit 26 onto the table. As shown in FIG. 6, on the table surface, a layout of a tip saw 29 of a typical size when polishing the rake surfaces of the left and right teeth of the horizontal grinding blade is drawn symmetrically on both sides of the slit 26. Also, on the front side, the layout diagram when polishing the left tooth back surface and the right tooth back surface of the same tip saw is also drawn symmetrically.

As shown in FIGS. 8 to 10, the table surface also has an adjusting plate 3 as shown in FIG.
Screws 34 for attaching 1, 32, and 33 are detachably screwed in, and the adjustment plates 31, 32, and 33 pass through the screws 34 into the long grooves 31a, 32a, and 33a, respectively, and are attached to the protruding ends of the screws 34. It is fixed by screwing in a wing nut (not shown), and its mounting position is within the range of the long grooves 31a, 32a, 33a.
By moving 2 and 33, the mounting angle can be changed to screw 3
It can be adjusted by rotating the adjusting plates 31, 32 and 33 around the center 4. And each adjustment plate 3
Of the 1, 32, 33, a pin 36 is provided at one end of each of the adjusting plates 31, 32, 33 so as to be fitted to the root of the teeth of the tip saw.

This device is constructed as described above. When polishing the rake face of a tip saw with lateral grinding teeth, first loosen the wing nut 14 and adjust the angle of the circular saw 15 according to the rake angle of the tip saw 27. , Match the angle between the table surface and the diamond wheel 27. Then, the wing nut 14 is tightened and fixed. After that, the tip saw 29 is placed on one of the figures for the left tooth or the right tooth in FIG. 6, for example, the figure for the left tooth.
6 and the pin 36 at one end of the adjusting plate 33 at the point a in FIG.
The pin 36 at one end is fitted to the valley between the teeth at or near the point b, and the position is adjusted so that the rake face of the tooth hits the diamond wheel 27. After the adjustment, the adjustment plates 32 and 33 are fixed by tightening the thumbscrews attached to the protruding ends of the screws 34. Similarly, the tip saw 29 is also placed and positioned on the figure for the right tooth, and the adjustment plates 32 and 33 are fixed (FIG. 8). In the tip saw 29 positioned on the table as described above, as shown in FIG. 6, in the case of the left tooth, the arc locus of the point b rotating around the point a does not match the direction of the valley between the teeth. Since they substantially coincide with each other and do not interfere with the teeth, they can rotate clockwise around the point a. Also for the right tooth,
The rotation locus of b ′ that rotates around a ′ does not interfere with the teeth, and the tip saw 29 can rotate about a ′.

After setting the adjusting plates 32 and 33 as described above, the table is attached to the tip saw 29 when the diamond wheel 27 is rotationally driven and set.
Either grind it, or once remove the tip saw 29 from the set position and newly rotate the diamond wheel with the diamond wheel rotating, and then add a new tip saw 29 for lateral grinding to the left or right teeth of the table surface, for example, It is placed for the left tooth, the valley between the teeth of the tip saw 29 is applied to the pin 36 at the point a, and it is fitted to the bottom of the valley. Then, the tip saw 29 is swung counterclockwise with the pin 36 at the point a as a fulcrum, and the pin 36 at the point b is fitted to the bottom of another tooth. In the tip saw 29 thus positioned, the rake face of the left tooth comes into contact with the diamond wheel 27 at a predetermined rake angle, and the tip saw 29 is touched so as to maintain this state, whereby the rake face is polished. Done.

When the polishing is completed, the diamond wheel 27 is swung in the clockwise direction in the figure with the pin at point a as a fulcrum, and b
Remove from the point pin. Then, after removing from the pin at point a, the pin at point a is fitted in the next valley between the teeth, and the tip saw 29 is swung counterclockwise in FIGS. 6 and 8 to move at point b. Fit the pin in the valley. Then, the rake face of the next left tooth is ground. After polishing the rake face of the left tooth one after another as described above, after polishing the rake angle of all the left teeth, the tip saw 29 is placed for the right tooth, and the rake face of the right tooth is subjected to the same procedure as above. Polishing.

When the grinding of the rake face of each tooth is completed, the back surface of the tooth is ground as follows. The angle of the circular saw 15 is adjusted to match the angle formed by the diamond wheel 27 and the table surface with the scraping angle. Next, the tip saw 29 is placed, for example, on the pattern for the left tooth in FIG. 6 so that the back surface of the tooth hits the diamond wheel 27 with the pin 36 at one end of the adjusting plate 33 fitted in the valley at or near point c. Adjust the position (Fig. 9). Also in this case, the tip saw 29 can rotate clockwise around the pin 36 at the point c without the pin 36 at the point d interfering with the teeth. The positions of the adjusting plates 32 and 33 are similarly adjusted on the figure for the right tooth. When the position adjustment of the adjusting plates 32 and 33 is completed,
The diamond wheel 27 is rotationally driven, and the back surface of the tooth is polished at a predetermined clearance angle and a predetermined angle of wear. That is, the tip saw 29 is touched, the tooth back surface is put on the diamond wheel 27, and every other tooth back surface is ground at a predetermined clearance angle and an embedding angle. After polishing the left tooth or the right tooth, the other tooth is similarly polished.

When the saw is sharpened, as shown in FIG. 10, the screw 34 is fitted in the long groove 31a of the adjusting plate 31, and the wedge-shaped claw 38 is axially attached to the pin 36 of the adjusting plate 32. Around this, the mounting angle of the circular saw 15 is adjusted, and the diamond wheel 27 protruding from the table surface
Adjust the angle of to the rake angle. Next, the saw 39 is placed on the table surface, and the adjusting plate 32 in which the claw 38 is engaged with the tooth of the saw 39 so that the upper blade of the right tooth hits the diamond wheel 2.
Then, the position of the adjusting plate 31 is adjusted and fixed.

After adjusting the positions of the adjusting plate 31 and the left and right claws 38 and setting them, the diamond wheel 27 is rotationally driven to grind the upper teeth of the right or left teeth every other tooth, and the upper teeth of one of the teeth are ground. After polishing, change the position of the saw 38,
Polish the other tooth. The above-mentioned polishing machine uses a circular saw, but the disk grinder has the same base 11 as above.
Can be attached to the table 17 by attaching.

[0025]

The present invention is configured as described above and has the following effects. According to the grinding machine of claim 1, the tooth back surface or the rake surface is polished by positioning the tip saw by the positioning means, and the tip saw is changed in position to be positioned by the back surface or rake surface positioning means. By doing so, it is possible to polish both the tooth back surface and the rake face, and the structure is simple because it only requires a circular saw or disc grinder, a table and positioning means, and the existing circular saw or disc grinder is the same as the existing one. It has the effect of being able to be installed as it is.

According to the grinding machine of the second aspect, it is possible to grind either the left tooth or the right tooth of the horizontal grinding blade. If a pin is used as the positioning means as in the polishing machine according to claim 3, the structure is simple, and the positioning is easily and surely performed by fitting the pin to the root of the tooth, and is easily detached from the positioning means. Is.

In the polishing machine according to the fourth aspect, it is possible to easily identify whether the positioning means is for the back rake face, or for the right tooth or the left tooth, and display as in the fifth aspect. If the means is displayed on the table, positioning can be easily performed by placing the tip saw on the figure. Claim 6
According to the above-described polishing machine, it is possible to perform polishing according to the rake angle or the scraping angle of the teeth.

In the polishing machine according to claim 7, by adjusting the position of the positioning means, the tip saw can be positioned regardless of the size of the tip saw and the pitch of the teeth. Can be polished. In the polishing machine according to the eighth aspect, the saw can be sharpened by inserting and positioning the claw between the teeth of the saw.

[Brief description of drawings]

FIG. 1 is a development view of a side surface of a longitudinal tooth.

FIG. 2 is a development view of a side surface of a lateral grinding tooth.

FIG. 3 is a development view of a side surface of a dual-purpose tooth.

FIG. 4 is a front view of a polishing machine according to the present invention.

FIG. 5 is a bottom view of the polishing machine.

FIG. 6 is a plan view of a table displaying a tip saw.

FIG. 7 is a perspective view of an adjustment plate.

FIG. 8 is a diagram showing a case of polishing a rake face of a tooth.

FIG. 9 is a diagram showing a case of polishing the back surface of teeth.

FIG. 10 is a view showing how to sharpen a saw.

[Explanation of symbols]

11 ... Base 12 ... Main body 13 ... Arc groove 14, 24
・ ・ Wing nuts 15 ・ ・ Circular saw 17 ・ ・ Tables 19, 20 ・ ・ Fixing metal fittings 21 ・ ・ Long grooves 23, 34 ・ ・ Screws 26 ・ ・ Slits 27 ・ ・ Diamond wheels 29 ・ ・ Tip saws 31, 32, 33 ・ ・Adjustment plate 36 ··· Pin 38 · · Claw 39 · · Saw

Claims (8)

[Claims] 1. A table with a leg having a slit penetrating vertically and a polishing wheel are attached, and a circular saw or an attachment base which is detachably attached under the table by protruding the wheel from the slit is attached. And a disc grinder, and a grinding machine having a tooth back surface positioning means and a rake surface positioning means for positioning a tip saw placed on the table. 2. The positioning means for the back surface and the positioning means for the rake face are composed of positioning means for the right tooth and positioning means for the left tooth, which are provided on both sides of the slit of the table, respectively. Polishing machine. 3. Each of the positioning means comprises a pair of pins, and when both pins are fitted with the roots between the teeth, the tip saw is rotated on the table with the pin as a fulcrum. The polishing machine according to claim 1 or 2, wherein the other pin is arranged at a position where the other pin can be fitted in the valley bottom between the other teeth without interfering with the teeth. 4. The polishing according to claim 1 or 2, wherein the positioning means or the table is provided with a display means capable of discriminating whether the positioning means is for the back rake face, right tooth or left tooth. Machine. 5. The polishing machine according to claim 4, wherein the display means is a tip saw graphic displayed on a table. 6. The polishing machine according to claim 1, further comprising an angle adjusting means for the polishing wheel protruding from the table. 7. The polishing machine according to claim 1, wherein the positioning means is positionally adjustable. 8. The polishing machine according to claim 7, wherein at least one of the positioning means capable of position adjustment is provided with a wedge-shaped claw inserted between the teeth of the saw.