JP2506313B2 - Polishing machine for chip saw - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention makes it possible to easily grind the cutting edge surface and the blade back surface of a chinosaw which is worn and poorly sharpened by use by simply rotating the handle in a reciprocating manner. The present invention also relates to a polishing machine such as a tip saw capable of finishing a base metal in a well-balanced shape.

[0002]

2. Description of the Related Art Conventionally, a sharpening machine such as a tip saw, which is worn by use and has a poor sharpness by polishing the cutting edge surface of a sharpened tip saw with a rotating abrasive, has been used before the present application. It is described in Japanese Patent Publication No. 4-40820 and is publicly known.

[0003]

By the way, in the conventional polishing machine for this type of tip saw, etc., only the cutting edge surface of the tip saw attached to the periphery of the base metal having a flat disk shape is polished. Yes, because the back of the blade of the tip saw cannot be polished, it is not possible to finish polish the tip saw as a whole with good sharpness, but the outer shape of the base metal cannot be finished in a well-balanced perfect circle, so it is distorted. As a result, the base metal rattles during cutting work and abnormal noise is generated, and the work cannot be efficiently accomplished in a stable state.

According to the present invention, even with a base metal having a plurality of chips mounted on its peripheral edge, a simple reciprocal rotation operation of the handle, a longitudinal movement adjustment operation of the grinder mounting base, a horizontal rotation adjustment operation and a locking device are provided. With the locking action of, the blade tip surface and the blade back surface of the tip saw are not only accurately ground for good sharpness, but also the outer shape of the base metal is finished in a well-balanced shape, so that cutting work is efficiently achieved. An object of the present invention is to provide a polishing machine such as a tip saw that can be used.

[0005]

In order to achieve the above object, in a polishing machine such as a tip saw according to the present invention, a tipping shaft is rotated in a vertical plane by a longitudinal movement adjusting operation and a lateral turning adjusting operation. A grinder mount that can change the position of the grinder relative to the base, and a rotating body that is rotated left and right by the left and right reciprocating rotations of the handle are provided on the base so as to face each other, and are erected at eccentric positions of the rotating body. While mounting the mounting shaft on the bearing cylinder while braking the rotation in the left-right direction, attach a saw blade with a chip on the periphery of the base metal to the mounting shaft to move the rotating body with the forward movement of the handle. As a shaft, the saw blade is moved forward in an arc so that it contacts the grinder, and it is retracted so that it separates in the backward movement, and it is locked on one side of the base in a specific groove of the saw blade when the saw blade moves forward. Keep the groove in that position and the lock will be released when retracting. It is characterized in that it has So設 a locking device for locking to one or more remote grooves from the grooves.

[0006]

[Function] When polishing each blade tip surface of the tip saw attached to the periphery of the saw blade (base metal), first, the base metal is passed through the clamping metal fitting and the tip surface of the tip passes through the axis of the mounting shaft. The handle is mounted on the mounting shaft so as to coincide with the line, and the adjusting screw of the reciprocating rotation range restricting device of the handle is moved forward (10 mm in this embodiment).

Then, with the handle set to the position A in FIG. 5, the grinder mount is moved forward along the long hole with the spindle as the base point, and then the grinder mount is mounted on the base. Fix it to the reference line that has been engraved in advance. Then, the grinding surface of the grinder rotatably mounted on the grinder mount and the cutting edge surface of the chip are set to be in alignment with each other.

After the above setting work is completed, when the handle is moved forward (clockwise) from the position A'to the position A in FIG. 7, the bearing cylinder rotated about the rotating body as an axis is in a braking state. The mounting shaft centered on the base moves forward from the B ′ position to the B position in an arc shape, and at the same time, by the locking operation of the locking device elastically locked to one of the saw blades. The base metal is advanced toward the grinder while drawing an arc shape from the C'position toward the C position under the unrotated state. As a result, the tip at the position to be ground is advanced in the non-rotating state while drawing an arc opposite to the arc moving from the C ′ position toward the C position, so that the tip of the tip moves when the base metal moves forward. Is moved forward without contacting the grinder, and finally the entire cutting edge surface is evenly contacted and polished.

After the cutting edge surface of one tip is polished by the grinder by the above operation, the handle is then moved to A
Move back from position to A'position (counterclockwise). By the way, the mounting shaft, which is mounted on the bearing tube under the braking state, is restored and moved in an arc shape from the position B to the position B ′, while the base metal is engaged. When the locked state with the stop position is released, the one-piece handle is rotated backward in the same direction as the backward movement of the handle with the backward movement of the handle. As a result, the tip whose edge surface has been polished along with the returning movement of the handle moves from the D position toward the D'position while drawing an arc, and is sequentially separated from the grinder. Sliding contact with the grinder during movement is prevented.

The locking device elastically locked to one of the saw blades is elastically locked to the next saw blade in response to the rotation of one piece of the base metal so that the base metal is in a non-rotating state. Prepared for the next movement by elastically locking to and. Therefore, each time the handle is reciprocated once, the blade tip surface of one tip is polished, so that the blade tip surface of all the tip saws is quickly and accurately polished by reciprocating the handle by the number of chips.

Next, when it is desired to grind the back surface of the blade of the tip saw, as shown in FIG. 6, the grinder mounting base is moved backward along the long hole with the spindle as the base point, and then is rotated with the spindle as the base point. Then, the handle is fixed to the reference line preliminarily engraved on the base, and the adjusting screw of the handle reciprocating range regulating device is retracted by about 10 mm to greatly adjust the reciprocating range of the handle. Then, the grinding surface of the grinder and the back surface of the blade of the chip are set to face each other.

Therefore, if the handle is moved forward (clockwise) from the position A'to the position A "as shown in FIG. 8 as in the case of polishing the cutting edge surface, the rotating body is used as an axis. The mounting shaft, which is mounted on the rotating bearing sleeve under braking condition, is also moved forward from the B ′ position to the B ″ position in an arc shape, and at the same time, is mounted on one of the saw blades of the base metal. The base metal is also moved forward from the C ′ position toward the C ″ position while drawing an arc under the non-rotating state by the locking operation with the locking device that has been locked.
As a result, the tip at the position to be ground is moved forward toward the grinder in a non-rotating state while drawing an arc opposite to the arc moving from the C ′ position to the C ″ position, and the blade back surface is moved toward the grinder. It abuts the polishing surface and is polished.

After the back surface of the blade of one chip is polished by the grinder by the above operation, the handle is then moved back from the A ″ position to the A ′ position (counterclockwise). By the way, the mounting shaft mounted on the bearing cylinder under the braking state is restored from the B ″ position to the B ′ position in an arc shape with the rotating body as an axis, and at the same time the base metal is moved. When the locking state with the locking device is released, the one-piece handle is rotated backward in the same direction as the backward movement direction of the handle with the backward movement of the handle. As a result, the tip whose blade back surface has been polished along with the backward movement of the handle is separated from the grinder sequentially while drawing an arc from the D ″ position to the D ′ position, so that the back surface of the tip blade moves when the handle moves backward. Never slidably touch the grinder.

The locking device elastically locked to one of the saw blades is elastically locked to the next saw blade in response to the one-piece rotation operation of the base metal so that the base metal is not rotated. Elastically locked to and ready for the next action. Therefore, each time the handle is reciprocated once, the back surface of the blade of one tip is ground, and therefore, when the handle is reciprocated by the number of chips, the back surface of the entire blade of the tip saw is quickly and accurately ground.

[0015]

EXAMPLES Examples will be described with reference to the drawings. 1 to 8, reference numeral 1 is a base with legs, and a grinder mounting base 2 on which a grinder 3 is rotatably mounted is erected on the rear side of the base 1, and the grinder mounting Spindle 4 inserted in slot 5 drilled in base 2
Is installed so that movement adjustment operation in the front-rear direction and rotation adjustment operation in the left-right direction can be performed with the base point as a base point, and a fixing screw rod 6 for fixing the grinder mounting base 2 to an appropriate position of the base 1 is provided with the grinder mounting base 2. It is screwed into one side. Reference numeral 7 is a reference line engraved on the base 1 for setting the grinder mounting base 2 on the base 1 when polishing the tip surface of a chip, and 8 is the grinder mounting base 2
Is a reference line engraved on the base 1 in order to set it on the base 1 at the time of polishing the back surface of the chip.

9 is a base 1 in front of the grinder mount 2.
The rotating body 9 is a rotating body disposed on the base 1.
The rotary body 9 is mounted on a fixed shaft 10 which is erected upright, and the rotary body 9 is braked by an urging elastic force interposed between the fixed shaft 10 and the rotary body 9 so as not to inadvertently rotate in the left-right direction. . Reference numeral 12 denotes an upright bearing cylinder integrally provided at an eccentric position of the rotating body 9, and the mounting shaft 1 is provided in the bearing cylinder 12.
3, the mounting shaft 13 is mounted on the bearing tube 1
The urging elastic force of the urging ammunition machine 14 interposed between the 2 and the nut 15 screwed to the lower end of the mounting shaft 13 is braked so as not to unintentionally rotate in the left-right direction. 16 is a rotating body 9
A handle attached to one side of the handle 16
The reciprocating rotation range regulating device 17 regulates the reciprocating rotation range.

The reciprocating rotation range restricting device 17 comprises a base 1.
A mounting member 18 of a reverse gate type fixed to one side by a fixing screw rod 21 and one or both of mounting plates 19 and 19 standing upright on both sides of the mounting member 18 so as to be adjustable in forward and backward movement. The adjusting screw 20 is combined with the adjusting screw 20 to adjust the reciprocating rotation range of the handle 16, that is, the rotation range between the positions A ′ to A ″, depending on the length of the front-back movement dimension of the adjustment screw 20. Reference numeral 22 denotes a disc-shaped base metal that is detachably mounted on the upper end side of the mounting shaft 13 via a fixing device 23. A large number of saw blades 24a are provided on the periphery of the base metal 22 at the same pitch. A tip 24 having a blade tip surface 25 and a blade back surface 26 is attached to each of the.

Reference numeral 27 is a locking device disposed on one side of the front side of the base 1, and the locking device 27 supports a support shaft 28 erected on the base 1 and a support shaft 28. A locking claw 29 rotatably mounted on the upper side of the shaft 28, one end of which is attached to the base 1, the middle of which is wound around the support shaft 28, and the other end of which is a locking piece. It is composed of a tractor 30 that is locked to 29,
The tip end side of the locking claw 29 is elastically locked by one of the saw blades 24a so that the base metal 22 is locked so as not to rotate.
The locking device 27 is moved to the X position when the diameter of the base metal 22 is smaller than that of the present embodiment, and is moved to the Y position when the diameter of the base metal 22 is larger than that of the present embodiment. It is possible to lock the base metal 22.

A motor 31 for rotating the grinder 3 is provided on the grinder mount 2 described above.
In addition, the grinder 3 in the vertical state can be tilted in the left and right directions at the same angle without changing the axis of the grinder 3, and the base metal 22 is rotated by the reciprocating rotation operation of the handle 16 toward two frames. Even if the same polishing machine is adjusted, the blade tip surface 25 and the blade back surface 26 of the tip 24 provided on the sorting clam-shaped base metal 22 can be simply
As long as the grinder 3 can be adjusted to move back and forth with respect to the grinder mounting base 2, it is possible to adjust the grinding surface of the grinder as needed, and the grinder 3 can be removed evenly. Can be prevented.

[0020]

Since the present invention is constructed as described above, it has the following effects. It is easy to change the grinder mount to a position suitable for polishing the tip and back of the tip saw simply by moving the grinder mount forward and backward or adjusting it left and right. The base metal mounted on the braked mounting shaft and equipped with the tip saw on the periphery of the base metal is not rotated around the rotating body that is braked by the locking operation with the locking device when the handle is moved forward. While the blade is moving, it can be advanced in an arc toward the grinder without hitting the grinder, and the blade surface and blade back can be accurately grounded. While rotating backwards in the same direction as the moving direction, the back surface of the blade separates without hitting the grinder, so that the handle simply reciprocates. Not only can the blade edge and blade back of the psaw be polished to have a good sharpness, but the outer shape of the base metal has also been modified to an appropriate shape, and the cutting work can be done efficiently without causing noise or rattling. Can be achieved.

[Brief description of drawings]

FIG. 1 is a front view of a polishing machine such as a tip saw with a main part broken away.

FIG. 2 is a side view of FIG.

FIG. 3 is a plan view of a polishing machine such as a tip saw with a part cut when polishing the blade tip surface of the tip saw.

FIG. 4 is a plan view of a polishing machine such as a tip saw with a part cut away when polishing the back surface of the blade of the tip saw.

FIG. 5 is a plan view showing a set position of a grinder mounting base and a handle during polishing work of a cutting edge surface.

FIG. 6 is a plan view showing a set position of a grinder mount and a handle when polishing the back surface of the blade.

FIG. 7 is an explanatory view of the action during polishing work of the cutting edge surface.

FIG. 8 is an explanatory view of the operation in the polishing work on the back surface of the blade.

[Explanation of symbols]

 1 Base 2 Grinder Mount 3 Grinder 4 Spindle 5 Long Hole 9 Rotating Body 11 Biasing Machine 12 Bearing Tube 13 Mounting Axis 14 Biasing Machine 16 Handle 17 Reciprocating Rotation Range Control Device 20 Adjustment Screw Rod 22 Base Metal 24 Tip 24a Saw blade 25 Blade tip surface 26 Blade back surface 27 Locking device

Continuation of the front page (56) References JP-A-60-249524 (JP, A) JP-A-5-192815 (JP, A) Actually opened 61-92523 (JP, U) Actual-opened 3-40053 (JP , U) Actual Kaihei 2-74125 (JP, U)

Claims (2)

(57) [Claims] 1. A grinder mounting base that can change the position of a grinder that rotates in a vertical plane with respect to a base by a longitudinal movement adjustment operation and a lateral rotation adjustment operation with a spindle as a base, and a handle that reciprocates left and right. A rotating body that is rotated left and right is provided on the base so as to face each other, and the mounting shaft is mounted on a bearing tube that is erected at an eccentric position of the rotating body while the rotation in the left-right direction is braked. A saw blade with a tip mounted on the periphery of the base metal is attached to the mounting shaft, and the forward movement of the handle causes the saw blade to move forward in an arc so that it contacts the grinder, and the backward movement causes the saw blade to move backward. In addition, on one side of the base, when the saw blade moves forward, it is locked in a specific groove of the saw blade and holds the groove in that position, and when retracted, the locking is released and one or more away from the groove. A tip saw characterized by being provided with a locking device for locking in the groove.ー Polishing machine. 2. A grinder for a tip saw or the like according to claim 1, wherein the grinder can be fixed so as to be tilted left and right about its axis.