JPH0538666A - Method and device for grinding cutter - Google Patents

Abstract

PURPOSE:To secure a cutting edge with genuine straightness by fixing a cutter to a tool rest alongside its longitudinal, grinding the cutting edge of this cutter with a grinder element reciprocative in parallel with the tool rest while a cooling medium is poured on, and supplying the cooling medium also to the cutter immediately after its service. CONSTITUTION:A traveling body 12 is fitted with No.1 flexible tube 31 to supply cooling medium such as water, oil, compressed air to a grinder element 23 and a cutter 4 during the grinding process, and No.2 flexible tube 31 is installed behind of the traveling direction. When the cutter 4 is ground by the grinder element 23, the cooling medium is supplied not only to the grinder element 23 and the cutter 4 at the grinding surface of element 23 but also to the cutter 4 immediately after its service, and also to the whole cutter 4, the front flat face 33 supporting the back of the cutter 4, and/or ribs 34. Thereby the cutter is prevented from running temperature due to grinding work, and the temps. of different parts over the cutter 4 in its longitudinal direction and vertical direction is maintained approx. uniformly, and the grinding can be performed while it is ensured that the parallelism of cutter 4 in its longitudinal direction is maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for grinding various long blades (3 to 10 shank) such as veneer lace and veneer slicer.

[0002]

2. Description of the Related Art Conventionally, when grinding the above-mentioned blade, a grindstone is appropriately pressed against a front blade or a back blade of the blade, a shaft for supporting the grindstone is rotated, and the blade is reciprocated arbitrarily in the longitudinal direction. It was During this grinding, the blade remains attached to the machine such as veneer lace, veneer slicer, etc., or it is removed separately from the machine and placed in a separately installed grinding device to prevent the blade itself from vibrating. Was fixed along the longitudinal direction.

In order to ensure the accuracy of the lengthwise facing of the cutting edge to be ground when fixing the blade, when it is mounted on a machine, for example, in veneer lace, the blade mounting portion located at the front of the plane is In the grinding apparatus, the tool rests are both formed on a smooth surface and placed or pressed so that the entire surface of the tool in the longitudinal direction is in close contact.

In addition, during grinding of the blade, the grindstone rotates on the surface of the blade and acts on it at a high speed, and the heat generated by the grinding is remarkable. Therefore, in order to prevent deterioration such as grinding burn and grinding crack due to this heat, the latter is particularly important. In the grinding device, the working is performed while pouring a grinding liquid (usually water or grinding oil is used) on the running surface of the grindstone extending in the longitudinal direction of the blade.

Therefore, even in the case of a long blade, the entire surface in the longitudinal direction is brought into close contact with the blade mounting portion or the smooth surface of the tool rest, and the grindstone is reciprocated in parallel with the straight edge line. Since the alteration of the blade is prevented by injecting the grinding liquid even when the blade is moved and the heat is generated during the grinding, the blade after the grinding should be straight in the longitudinal direction.

[0006]

However, when mounting the blade thus ground on the machine, for example, as shown in FIG. 8, the mounting portion 3 of the plane 2 of the veneer lace 1 is mounted.
In addition, when the blade 4 is attached to the blade holder 6 having the inclined surface 5 toward the blade edge of the blade 4 on the back side by screwing the blade 4 with the mounting bolts 7, the lower portion of the blade 4 is currently pressed. A plurality of sets of attachment holes for screwing each set of a push bolt 8 for pulling and a pulling bolt 9 for pulling the lower part of the blade 4 are provided at arbitrary intervals along the longitudinal direction of the lower part of the blade holder 6. Each set of push bolts 8 so that the cutting edge line of 4 is a straight line
In addition, the pulling bolts 9 must be pushed or pulled in an arbitrary set to make adjustments in the longitudinal direction, and the intervals between the blade openings 10 of the veneer lace 1 and the blade edges of the blades 4 must be set to be the same. There wasn't.

However, since the grindstone travels parallel to the longitudinal direction of the tool rest during grinding of the tool, the tool pressed and fixed to the tool rest should also be ground in parallel, that is, straight. Considering the above results after grinding, the grinding is straight during grinding, and the cutting edge maintains a straight line immediately after grinding, but after that, twisting occurs in the longitudinal direction and the vertical direction. It will be.

The fact that the blade is altered as described above during and after grinding means that the blade is closely fixed to the tool rest in the longitudinal direction during the grinding, and expansion due to heat generation in the longitudinal direction is restricted by both ends. Therefore, in the vertical direction, there is a difference due to heat generation between the temperature of the cutting edge that is the upper part of the cutting tool and the temperature of the cutting edge that is the lower cutting tool, and the entire cutting tool This is because the upper part of the blade is twisted into a fan shape as it is at the base of the blade. Furthermore, it is also due to the fact that the surface to be ground of the blade is not equal in thickness, and the wall thickness becomes thinner toward the tip of the blade tip, and this wall thickness is not uniform,
The blade itself thermally expands due to the heat generated during grinding, and the central portion in the longitudinal direction and the vertical direction expands,
This heat is conducted from the back surface of the tool to the tool stand side.

Usually, in this tool rest, a front surface plate for closely fixing the blade and an upper surface plate in a direction orthogonal to the upper part of the front surface plate are welded to each other, and the orthogonal portions are welded at appropriate intervals. Since it is placed and welded and reinforced with a reinforcing plate, the tool post side receives the same stress as the heat stress received by the tool itself, and the conductive heat from the tool causes contact with the back surface of the tool and the opposite side. Causes a temperature difference, the side in contact with the back surface of the tool expands more than the opposite side, and the longitudinal and vertical central parts of the side of the tool post in contact with the back surface of the tool swell. Is fed back to the blade again, resulting in a tight constraint on the blade.

Therefore, since the blade is ground by the mechanically reciprocating grindstone while the central portions in the longitudinal direction and the vertical direction are inflated, the central portions in the longitudinal direction and the vertical direction are excessively ground. After grinding, when the stress due to thermal expansion is eliminated and the temperature reaches room temperature, the cutting edge of the blade becomes thicker and higher from the center to both ends, and both ends are centered in the thickness direction and in the vertical direction. It means that it is twisted into a depressed state.

Even if the once-twisted blade is adjusted by pushing or pulling it on the blade holder as described above, if the pressing force or the pulling force exceeds the rigidity of the blade holder. For example, the blade holder itself cannot withstand these forces and follows the twisting of the blade, and the blade holder cannot eliminate the twisting of the blade. It was impossible to set the same distance between the blade edge of the veneer lace and the blade edge of the blade, which was practically impossible.

In view of the above, the present invention prevents heat generation during grinding of various long blades such as veneer laces and veneer slicers, so that even in the blades after grinding, the blade tips are aligned in the thickness direction and the vertical direction. The purpose is to eliminate the twisted state from both end portions to the central portion and to ensure the straight line of the cutting edge.

[0013]

SUMMARY OF THE INVENTION In order to solve the problems of the above-mentioned prior art, the present invention relates to claim 1 in which the blade tip portion fixed along the longitudinal direction of the tool rest is referred to as a tool rest. We proposed a method of grinding while injecting a cooling medium with a grindstone that reciprocates in parallel, and supplying the cooling medium to the blade immediately after grinding as well, in order to prevent heat generation during grinding.

According to a second aspect of the present invention, when the blade tip portion fixed along the longitudinal direction of the tool rest is ground by a grindstone that reciprocates in parallel to the tool rest, a cooling medium is supplied to the entire tool rest. I am trying.

According to a third aspect of the present invention, the back surface of the tool fixed along the longitudinal direction of the tool rest and the tool rest are also cooled so that the temperature of each part in the longitudinal direction and the vertical direction of the tool is substantially uniform. However, it is characterized in that the blade edge portion of the blade is ground by a grindstone that reciprocates in the longitudinal direction.

According to a fourth aspect of the present invention, there is provided a traveling body which is reciprocally movable in parallel with a tool rest arranged adjacent to the bed, and a grindstone for grinding the tool, and a flexible tube for supplying a cooling medium to the grindstone at the time of grinding. A second flexible tube is attached to the rear of the flexible tube in the traveling direction, and a cooling medium is supplied to each flexible tube when the blade is ground by a grindstone.

According to a fifth aspect of the present invention, the tool is fixed in the longitudinal direction at a front portion of the tool rest disposed adjacent to the bed via a storage portion that covers the entire length of the tool in the longitudinal direction, and is parallel to the tool rest. In addition, a grindstone for grinding a blade is attached to a traveling body that can freely reciprocate, and a cooling medium is supplied to the storage portion when the blade is ground by the grindstone.

According to a sixth aspect of the present invention, a plurality of ribs are projectingly attached to the front portion of the tool rest arranged adjacent to the bed at arbitrary intervals, and the front surface of each rib is on the back surface side extending in the longitudinal direction of the tool. As a support part, while fixing by a tool holder, a grindstone for grinding the tool is attached to a traveling body that can reciprocate in parallel with the tool rest, and when the tool grinds the tool, a cooling medium is placed in each rib interval. It is characterized by supplying.

According to a seventh aspect of the present invention, a tool rest for fixing the tool is provided in a receiving tank arranged adjacent to the bed, and a grindstone for grinding the tool is provided on a traveling body which is reciprocally movable in parallel with the tool rest. A cooling medium is supplied to the inside of the receiving tank when the blade is attached and the blade is ground with a grindstone.

According to an eighth aspect of the present invention, the front smooth surface of the tool rest arranged adjacent to the bed is made of a material having high thermal conductivity, and the blade is fixed to the front smooth surface in the longitudinal direction thereof. ,
It is characterized in that a grindstone for grinding the tool is attached to a traveling body which can reciprocate in parallel with the tool rest, and when the tool is ground by the grindstone, a cooling medium is supplied from a rear portion of the tool rest.

According to a ninth aspect of the present invention, there is provided a grindstone for fixing a tool to a tool rest disposed adjacent to a bed in the longitudinal direction thereof, and for grinding the tool on a traveling body which is reciprocally movable in parallel with the tool rest. It is characterized in that the cooling medium is supplied to the medium passage formed in the tool rest during attachment and grinding of the tool with a grindstone.

According to a tenth aspect of the present invention, a plurality of ribs are projectingly attached to a front portion of a tool rest which is disposed adjacent to the bed and has a hollow interior and is hermetically sealed, and a front surface of each rib is attached to the tool. A supporting portion on the back side in the longitudinal direction of the blade, and the blade is fixed to the supporting portion in the longitudinal direction thereof, and a crosspiece is horizontally attached between the lower ends of the ribs to attach the blade. It is characterized in that a grindstone for grinding a tool is attached to a traveling body that can reciprocate in parallel, and when the tool is ground by the grindstone, a cooling medium is supplied from the inside of each tool rest into a rib interval.

[0023]

When the tool is fixed to the tool rest arranged adjacent to the bed, and when the tool is ground with a grindstone, the cooling medium immediately after grinding, the entire tool, or the front smooth surface that supports the back surface of the tool and the back surface of the tool Alternatively, the ribs are supplied to each rib to prevent heat generation due to grinding of the blade, maintain the temperature of each portion in the longitudinal direction and the vertical direction of the blade substantially uniform, and ensure parallelism in the longitudinal direction.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments will be described below with reference to the accompanying drawings.

A traveling body 12 is movably mounted in the longitudinal direction on a bed 11 having at least the length of the blade 4 to be ground by a guide rod, a rail or the like. A prime mover 13 is installed at one end of the bed 11,
The driving force is transmitted to one of the chain wheels 14 supported at both ends of the chain 12, and the chains 15 attached to the front and rear of the traveling body 12 are suspended between the chain wheels 14 to move the traveling body 12 to the bed 11. It is configured so that it can slide in parallel.

A sliding base 17 is mounted on the traveling body 12 via a guide rod or a dovetail groove 16 as shown in the drawing, and the traveling body 1
The feed shaft 18 supported on the rear end of the slide base 2 is attached to the rear portion of the slide base 17, and the feed shaft 18 can be moved back and forth in the direction of the blade 4 by operating the handle 19. A motor 21 for rotating a grindstone is mounted on the sliding base 17 via a round seat 20.
A cup-shaped grindstone 23 for grinding the blade tip of the blade 4 is attached to the tip of the motor shaft 22 by screwing. Also,
The round seat 20 is configured to be rotatable and fixed by detaching a stopper pin or the like in a horizontal plane with respect to the slide base 17, and a swing angle with respect to the cutting edge and an angle at which the peripheral surface of the grindstone 23 abuts against the cutting edge. It is adjustable.

Below the bed 11, the bed 1
A frame 24 of the same length as 1 is installed.
A support shaft is supported by bearings 25 formed at both ends of the tool, and a tool rest 27 parallel to the bed 11 is fixed to the support shaft 26. The turret 27 is configured such that a worm wheel 28 fixed to one end of the support shaft 26 meshes with a worm 29, and by rotating the worm 29, the angle of the turret 27 can be displaced. A tool holder 30 for fixing the tool 4 by fluid movement such as hydraulic pressure, pneumatic pressure or the like or screwing is attached to the tool rest 27 at appropriate intervals.

In the traveling body 12 of the first embodiment illustrated in FIG. 3, cooling water, oil, and
A first flexible tube 31 for supplying a cooling medium such as compressed air;
The second flexible tube 3 is provided behind the first flexible tube 31 in the traveling direction.
I am wearing 1.

At the front part of the tool rest 27 of the second embodiment illustrated in FIGS. 4 and 5, the tool 4 is fixed in the longitudinal direction via a storage portion 32 that covers the entire length of the tool 4 in the longitudinal direction, A cooling medium is supplied to the storage section 32 when the blade 4 is ground. FIG. 4 exemplifies a case where the cutting edge portion of the cutting tool 4 is fixed to the upper portion of the cutting tool base 27 slightly upward, and since the storage portion 32 in this case is sufficient at least at the cutting edge portion of the cutting tool 4,
Both ends of the blade 4 in the longitudinal direction and arbitrary positions below are surrounded by a dam plate, and FIG. 5 exemplifies a storage portion 32 in a state of storing the entire blade 4 in the front part of the blade base 27. As shown in FIG. 4, the cooling medium is supplied to the flexible tube 31 from above.
Or from the bottom as shown in FIG.

In the tool rest 27 of the third embodiment illustrated in FIG. 6, a plurality of ribs 34 are projectingly attached to the front smooth surface 33 at arbitrary intervals, and the front face of each rib 34 of the tool 4 is attached. Nozzles of the flexible tube 31 for supplying a cooling medium are respectively arranged in the intervals of the ribs 34 while maintaining parallelism in the longitudinal direction as a support portion on the back side across the longitudinal direction. At this time, the tool rest 27 is provided between the bed 11 and the frame 24.
A cooling medium receiving tank 35 is installed over the entire length of the cooling medium and is returned from the receiving tank 35 to the flexible tube 31 through a cooling section. Although the rib 34 in the illustrated example is continuous, the rib 34 may be intermittently formed, that is, divided into a plurality of ribs 34 in the vertical direction.

In the fourth embodiment illustrated in FIG. 7, a cooling medium receiving tank 35 is installed between the bed 11 and the frame 24 over the entire length of the tool rest 27, and the receiving tank 35 is cooled. The cooling medium that is recirculated through the section is supplied and discharged through the flexible tube 31, and the water surface thereof is the upper surface position of the blade 4. In this case, the front smooth surface 33 of the tool rest 27 is in an open state, and the lattice body is an internal framework structure.
In some cases, the front surface of the reinforcing member may serve as a rear side supporting portion extending in the longitudinal direction of the blade 4 as in the first embodiment, so that the cooling medium is directly supplied to the back side of the blade 4.

In the tool rest 27 of the fifth embodiment illustrated in FIG. 8, a material forming the front smooth surface 33 is made of a metal having high heat conductivity, such as copper or aluminum, and the tool rest 27 is used.
The flexible tube 31 for supplying the cooling medium is arranged on the back side of the front smooth surface 33 of the above. A cooling medium receiving tank 35 is installed over the entire length of the tool rest 27.

In the tool rest 27 of the sixth embodiment illustrated in FIG. 9, a medium passage 36 communicating with a plurality of openings in the front portion thereof is bored inside, and the rear portion of the medium passage 36 is cooled. A flexible tube 31 for supplying a medium is connected. Also,
Similar to the above description, the cooling medium receiving tank 35 is installed over the entire length of the tool rest 27, and is recirculated from the receiving tank 35 to the flexible tube 31 through the cooling section.

Further, the tool rest 27 of the seventh embodiment illustrated in FIG. 10 is constructed by hermetically sealing it in a box shape, and the cooling medium is constantly supplied to the hollow interior thereof via a flexible tube 31 by an arbitrary pressure. The temperature of each part of the tool rest 27 in the longitudinal direction and the vertical direction is made substantially uniform. Further, a plurality of front smooth surfaces 33 are opened at arbitrary intervals through the medium passage 36, and a plurality of ribs 34 are formed in the opening intervals from the front smooth surface 33 as in the first embodiment. The ribs 37 are projectingly attached, and the crosspieces 37 are horizontally attached between the lower ends of the ribs 34.

In the first, second and sixth embodiments, the back surface of the blade 4 is in close contact with the front smooth surface 33 of the tool rest 27, but as in the third and seventh embodiments. Rib 3
4, the tool 4 is planned to be fixed by the tool holder 30 in each of the above embodiments, but the invention is not limited to this, and the front smooth surface 33 of the tool rest 27, the ribs 34, The grid body, the reinforcing member, or the like may be an electromagnet, and the blade 4 may be fixed by adsorption or desorption by magnetic force.

Next, the operation will be described. First, the tool 4 to be ground is fixed on the tool rest 27 by fluid or screwing through the tool retainer 30, and the tool rest 27 is held at a required angle by the worm 28 and the worm wheel 29. Next, the round seat 20 is appropriately rotated to adjust the swing angle of the grindstone 23 installed on the slide table 17 with respect to the cutting edge, and the handle 20 is operated to drive the feed shaft 18 at the rear of the traveling body 12. The sliding table 17 is moved forward to bring the grindstone 23 into contact with the blade tip position of the blade 4.

After the initial setting is completed, in the first embodiment illustrated in FIG. 3, the traveling body 12 is moved forward or backward while the cooling medium is supplied from the first and second flexible tubes 31. If it is moved back, the grindstone 23 and the blade 4 can be used when grinding the blade 4.
The cooling medium is injected from the first flexible tube 31 into the blade edge portion of the above, and the cooling medium is supplied from the second flexible tube 31 at the portion of the blade 4 immediately after grinding.

In the second embodiment illustrated in FIG. 4, both ends and the lower end of the storage part 32 are surrounded by dam plates.
The cooling medium is supplied to the inside, and in the example illustrated in FIG. 5, the entire cutting tool 4 is supplied with the cooling medium and the storage portion 32 is supplied.
It is stored inside and the entire blade 4 is cooled when the blade 4 is ground. When the stored cooling medium absorbs heat and rapidly warms due to the heat generated by grinding, the cooling medium is constantly supplied into the storage portion 32 and adjusted by overflowing in order to prevent this. Preferably.

In the third embodiment illustrated in FIG. 6, the cooling medium is jetted from the nozzles arranged within the intervals of the ribs 34 to the blade 4, the front smooth surface 33 of the tool rest 27, and the ribs 34.

In the fourth embodiment illustrated in FIG. 7, the cooling medium recirculated through the cooling section is constantly supplied to and discharged from the receiving tank 35 disposed adjacent to the bed 11, and the water surface position thereof is the tool rest 27. The upper surface position of. In this case, if the structure is such that the front smooth surface 33 of the tool rest 27 is opened, the lattice body, which is the internal framework structure, and the front surface of the reinforcing member extend in the longitudinal direction of the tool 4 as in the first embodiment. It serves as a support portion on the back side, and the cooling medium is directly supplied to the back side of the blade 4. The cooling medium supplied and discharged is the receiving tank 35.
In the case where the blade 4 stays inside and uneven temperature occurs in the lengthwise direction and the vertical direction of the blade 4, an agitator (not shown) is installed at an appropriate position of the receiving tank 35 to agitate the retained cooling medium. Then, the temperature may be maintained substantially uniform.

In the fifth embodiment illustrated in FIG. 8, the cooling medium is supplied to the metal portion having a high heat conductivity such as copper, which constitutes the front smooth surface 33 of the tool rest 27, from the back side.

In the sixth embodiment illustrated in FIG. 9, the medium passage 36 communicating with the plurality of openings in the front portion of the tool rest 27.
Supply cooling medium to.

In the seventh embodiment illustrated in FIG. 10,
Since the cooling medium is constantly supplied to and discharged from the hollow inside of the tool rest 27 through the flexible tube 31 by an arbitrary pressure, the tool rest 2
The temperature of each part in the longitudinal direction and the up-down direction of 7 is made substantially uniform, and the cooling medium is supplied from the medium passage 36 into the spaces between the ribs 34, and the supplied cooling medium flows down from the back surface of the blade 4 to the lower end. It is retained in the portion of the crosspiece 37 and overflows from the blade edge portion. By doing so, the supply amount of the cooling medium can be greatly reduced.

In any of the embodiments, when the blade 4 is ground by the grindstone 23, the cooling medium is not only the grindstone 23 and the blade 4 on the grinding surface of the grindstone 23, but also the blade 4 immediately after grinding or the entire blade 4. , Or the front smooth surface 33 that supports the back surface of the blade 4 or each rib 34 to prevent heat generation due to the grinding of the blade 4, and to keep the temperature of each portion in the longitudinal direction and the vertical direction of the blade 4 substantially uniform. To maintain the parallelism in the longitudinal direction of the blade 4 to ensure the grinding.

[0045]

[Effects] As described above, since the effects described above in each claim can be obtained, even in the case of grinding a long blade, the edge portions are arranged in the thickness direction and from the both end portions in the vertical direction to the central portion. By eliminating the twisted state, the straight line of the cutting edge is guaranteed.

Therefore, in the case of a blade in which the straight line of the blade edge is guaranteed, it is not necessary to adjust the pushing and pulling when the blade is attached to the veneer race, so that the blade holder can be eliminated, and the blade edge and the blade can be eliminated. It becomes easy to set the intervals of the blade edges of the same. Further, since the blade is directly clamped to the plane of the veneer race from its front side, the certainty is increased and the thickness of the blade can be reduced as compared with the clamp via the blade holder.

Further, as for the cutting tool which bites the gravel and the metal piece at the time of cutting the raw wood and causes a large chip at the cutting edge portion,
Although a large amount of heat is generated during grinding, it takes a longer time than the normal grinding time. However, according to the present invention, heat generation during grinding is prevented, which can be shortened. Become.

[Brief description of drawings]

FIG. 1 is a front view showing an entire apparatus for directly carrying out the method of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a schematic side view with a part cut away of the first embodiment.

FIG. 4 is an enlarged side sectional view of an essential part of the second embodiment.

FIG. 5 is an enlarged side sectional view of an essential part of the second embodiment.

FIG. 6 is an enlarged side sectional view of a main part of the third embodiment.

FIG. 7 is an enlarged side sectional view of a main part of the fourth embodiment.

FIG. 8 is an enlarged side sectional view of an essential part of the fifth embodiment.

FIG. 9 is an enlarged side sectional view of an essential part of a sixth embodiment.

FIG. 10 is an enlarged side sectional view of an essential part of a seventh embodiment.

FIG. 11 is a side sectional view showing a conventional example in which a long blade is attached.

[Explanation of symbols]

1 ... veneer lace, 2 ... plane stand, 3 ... rest part, 4 ... blade,
5 ... Inclined surface, 6 ... Blade holder, 7 ... Mounting bolt, 8 ... Push bolt, 9 ... Pull bolt, 10 ... Blade opening, 11 ... Bed, 12 ... Traveling body, 13 ... Motor, 14 ... Chain wheel, 15 ... Chain, 16 ... Dovetail, 17 ... Sliding base, 18
... Feed shaft, 19 ... Handle, 20 ... Round seat, 21 ... Motor, 22 ... Motor shaft, 23 ... Grindstone, 24 ... Frame, 2
5 ... Bearing part, 26 ... Spindle, 27 ... Tool rest, 28 ... Worm wheel, 29 ... Worm, 30 ... Tool holder, 31
... flexible tube, 32 ... storage part, 33 ... front smooth surface, 34 ... rib, 35 ... receiving tank, 36 ... medium passage, 37 ... crosspiece.

Claims (10)

[Claims] 1. A cutting edge portion of a cutting tool fixed along the longitudinal direction of the cutting tool is ground while a cooling medium is injected by a grindstone that reciprocates in parallel with the cutting tool, and the cooling medium is also applied to the cutting tool immediately after grinding. A method for grinding a blade, characterized in that: 2. A cutting tool which supplies a cooling medium to the entire cutting tool when a cutting edge of the cutting tool fixed along the longitudinal direction of the cutting tool is ground by a grindstone that reciprocates in parallel with the cutting tool rest. Grinding method. 3. The tool, which is fixed along the longitudinal direction of the tool post, and also cools the back surface of the tool post, as well as the temperature of the respective parts in the longitudinal direction and the up-down direction of the tool, while making the temperature of the tool almost uniform. A method of grinding a blade, characterized in that the blade tip portion of the blade is ground by a grindstone that reciprocates in the longitudinal direction. 4. A grindstone for grinding a tool on a running body which can reciprocate in parallel with a tool rest arranged adjacent to a bed.
A flexible tube that supplies a cooling medium to this grindstone at the time of grinding and a second flexible tube at the rear of the running direction of this flexible tube are attached, and when the blade is ground by the grindstone, a cooling medium is supplied to each flexible tube. A blade grinding device characterized by supplying. 5. The tool is fixed in the longitudinal direction to a front part of the tool rest arranged adjacent to the bed via a storage portion covering the entire length of the tool, and reciprocates in parallel with the tool rest. A tool grinding apparatus, wherein a grindstone for grinding a tool is attached to a freely movable traveling body, and a cooling medium is supplied to the storage portion when the tool grinds the tool. 6. A plurality of ribs projectingly attached to a front portion of a tool rest arranged adjacent to the bed at arbitrary intervals, and a front surface of each rib serves as a support portion on a back surface side extending in the longitudinal direction of the tool. , While fixing the blade to the support portion in the longitudinal direction thereof, by attaching a grindstone for grinding the blade to a traveling body that can reciprocate in parallel with the tool rest, when grinding the blade with the grindstone,
A blade grinding device characterized in that a cooling medium is supplied into each rib interval. 7. A tool rest for fixing a tool is installed in a receiving tank arranged adjacent to a bed, and a grindstone for grinding the tool is attached to a traveling body which can reciprocate in parallel with the tool rest. A blade grinding apparatus, wherein a cooling medium is supplied into the receiving tank when the blade is ground with a grindstone. 8. A front smooth surface of a tool rest arranged adjacent to a bed is made of a material having high thermal conductivity, and the tool is fixed to the front smooth surface in the longitudinal direction thereof, and A tool grinding device characterized in that a grindstone for grinding a tool is attached to a traveling body that can reciprocate in parallel with the tool rest, and a cooling medium is supplied to a rear portion of the tool rest when the tool grinds the tool. 9. A tool which is fixed to a tool rest disposed adjacent to the bed in the longitudinal direction thereof, and a grindstone for grinding the tool is attached to a traveling body which is reciprocally movable in parallel with the tool rest. And a cooling medium is supplied to a medium passage formed in the tool rest during grinding of the tool with a grindstone. 10. A plurality of ribs are projectingly attached to a front portion of a tool rest, which is arranged adjacent to a bed and has a hollow interior and is hermetically sealed, at arbitrary intervals, and the front surface of each rib is in the longitudinal direction of the tool. The support part on the back side of the tool is fixed to the support part along the longitudinal direction of the support part, and a crosspiece is mounted horizontally between the lower ends of the ribs to reciprocate in parallel with the tool rest. A tool grinding device characterized in that a whetstone for grinding a tool is attached to a movable traveling body, and a cooling medium is supplied from the inside of the tool stand into each rib interval when the tool is ground by the whetstone.