KR100474637B1 - Tool grinding machine - Google Patents

Abstract

The present invention relates to a tool grinding machine.

That is, the hinge part is formed in the center of the body of the chuck holder, and the inclination scale plate is attached to the upper part of the hinge part, so that the angle of the base of the tool such as the end mill can be precisely ground, and the angle adjusting lever is attached to the tip of the chuck holder part. The outer cutting edges 1 and 2 of the tool can be carried out at the same time, and the angle block of the turning part is fixed to the sine value based on the fixed block gauge, and the fixed block gauge is brought into close contact with the cutting edge of the tool. The angle 1 and 2 angles can be ground accurately, and the grinding body is divided into upper and lower parts so that the upper body can be rotated to the desired angle, and the angle scale plate is formed so that the operator can recognize the angle of the rotated state at this time. It is characterized in that it is possible to form a spherical angle of the tool.

Description

Tool Grinding Machine {TOOL GRINDING MACHINE}

The present invention relates to a tool grinding machine.

Generally, the tool grinder is used when the tool is mounted on the machine and the blade is worn out or before the new tool is mounted on the machine. The feeder is equipped with a turning part for turning the chuck holder to fix the tool, and the chuck holder part is fed to the front and rear, right and left so that the tool is in the optimum grinding position of the grinding material installed in the grinding part, and configured to grind the blade of the tool. It is. However, in order to grind the tool in the above manner, a series of work processes in which the tool is rotated so that the tool maintains the proper grinding angle with respect to the grinding material is performed by the operator's skilled function. By adjusting, there is a problem that the angle of the grinding edge of the tool is inaccurate and the work efficiency is deteriorated. In particular, if the angle of the blade is incorrectly ground like the end mill is mounted on the machine there is a problem that the surface treatment is wrong to increase the defective rate of the product.

The present invention has been made in order to solve the above problems, the purpose is to form a hinge portion in the center of the body of the chuck holder portion, the inclination graduation plate is attached to the hinge portion upper, the angle of the edge of the tool such as end mill The grinding wheel can be accurately grounded, and the circumference cutting blades 1 and 2 of the tool can be carried out at the same time by using the angle adjusting lever at the tip of the chuck holder part, and the desired angle based on the fixed block gauge on the angle scale plate of the turning part. The main purpose of the present invention is to close the fixed block gauge back to the sine value so that the bottom edge of the tool and the 1st and 2nd cutting edges of the tool can be accurately ground, and another object of the present invention is to divide the main body of the grinding part into the upper and lower parts. At the same time, the upper body can be rotated to the desired angle, and the angle of the rotated state can be recognized by the operator. To provide it so that the scale plate is formed, to form a gumyeongak of the tool is that the purpose.

The present invention for achieving the above object is a transfer handle A to rotate the screw bar in the shelf A to move the shelf B to the left and right, the lower side of the shelf B lock lever that can be released or fixed from the shelf A, The front surface of the shelf A has a handle on both sides having a pinion for engaging the rack gear formed at one end of the shelf B to move the shelf B before and after, the guide groove formed on the side of the shelf B, the grinding stroke of the tool after the release of the locking lever The front and rear block gauges for setting the distance value, between the block gauges of the front and rear, lathe B sets the grinding stroke distance value of the tool, the lathe A is fixed to the stopper for braking it, and behind the lathe B A transfer handle B that allows the lathe B to be moved forward and backward on the lathe A, and the turning part disposed on the lathe B visually checks the value of the grinding edge of the tool. An angle scale plate fixed so as to have a fixed block gauge and a fixed block gauge for setting the center angle fixed block gauge and the sign angle to enable grinding the angle of the grinding of the tool and the circumference 1 and 2 angles of the tool On the shelf C fixed to the turning part, a center gauge for setting the center and horizontality of the tool, and a guide groove of the upper and lower straits on the shelf C have a guide groove for conveying and grinding the tool before and after grinding. D, the guide projection of the upper and lower strait on the shelf D has a shelf E having a guide groove for conveying and grinding the grinding of the tool to the left and right, the chuck holder portion for fixing the tool to the hinge axis of the shelf E; The hinge shaft has a bolt fastened to adjust the inclination angle of the chuck holder, an inclination scale plate for checking the inclination angle of the chuck holder portion, and a chuck holder portion behind the chuck holder portion. An angle adjusting lever having an angular scale plate that presses the leaf springs mounted on the portion by rotation and returns to reverse rotation by the elasticity of the pressed leaf springs, and a bushing coupled to the outer peripheral surface of the shaft inside the chuck holder portion. Bolts coupled to one side end, the clip inner circumferential surface mounted on the chuck holder portion bolts connected to one end of the leaf spring, a plurality of clip grooves formed on the outer peripheral surface of the clip control bolt for braking the rotation of the clip, the upper center of the chuck holder It has a feature that consists of a detachable lever having a projection at the end so that the hunger can be attached to and detached at a 15 ° angle built on the shaft of the chuck holder.

And at the lower part of the grinding portion disposed on one side of the shelf A of the main body, the clearance angle adjusting unit for grinding the clearance angle of the tool, the rotation angle rotating part of the clearance angle adjustment unit, the fixed piece fixed to the shelf A, the clearance angle A plurality of control bolts to control the rotating piece in the rear of the government, the pinion of the fixed piece meshing with the rack gear of the rotating piece rotated by the release of the control bolt and the clearance angle scale plate for checking the rotation angle of the rotating piece on the front of the fixed piece There is a formed feature.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

A grinding wheel 21 driven by a driving motor (not shown) is built up in the shaft end at the tip of the grinding portion 20, and the upper side of the clearance angle adjusting piece 22 disposed below the grinding portion 20. Is divided into a rotating piece 23, the lower side is fixed to the fixing piece 24, the front side of the fixing piece 24 is formed with an arc angle plate 24a in an arc shape, the rotating piece 23 behind the fixing piece 24 After setting the value of the clearance angle of the rotary piece by releasing the plurality of control bolts 24b for fastening the rotary piece 23 is fastened, and between the rotary piece 23 and the fixed piece 24 rack gear ( 23a) and pinyang 24c are formed in engagement with each other,

Main body 10 Shelf A (30) A screw rod 32 is integrally coupled to the transfer handle A (31) disposed at one end, and the screw rod (32) is disposed on the shelf A (30). 40 is coupled to the lower thread groove 41 is formed to transfer the shelf B (40) to the left, right, the shelf B (40) fixed on the lower side of the shelf B (40) from the shelf A (30) The lock lever 42 is formed to be released or released, and the rack gear 43 formed at one end of the shelf B 40 has a pinion 33 ′ of both handles 33 fixed to the rear of the shelf A 30. It is engaged with the guide groove 44 formed on the side of the shelf B (40) to release the locking lever 42 to enable the grinding of the tool (P) in a state to move the shelf B (40) before and after After setting the stroke distance, the front and rear block gauges 45 and 45 'are inserted to allow grinding within this set value, and the stopper (between the front and rear block gauges 45 and 45'). 34) Shelf A (30) top Is disposed,

A screw rod 46 'is integrally coupled to the transfer handle B 46 formed behind the shelf B 40, and the screw rod 46' is coupled to the nut 35 of the shelf A 30.

Rotating the transfer handle B 46, the shelf B 40 is moved forward, backward,

On the turning part 50 disposed on the shelf B 40, an angle scale plate 51 fixed so as to visually check the value of the grinding angle of the bottom edge of the tool P is marked in a circle, and the angle scale plate ( 51), a fixed block gauge 52 is arranged to allow grinding of the tool base edge and the circumferential cutting angles 1 and 2 by a signed value, and another fixed block gauge 52 'having a center angle on the same line is disposed. ,

The center gauge 61 for leveling the center of the tool is installed on the shelf C 60 arranged above the turning part 50, and a lower part of the shelf C 60 has a 20 mm of 0 ° of the sign value. Rod 62 is fitted, coupled to the guide groove 71 formed on the shelf D (70) in the guide projection 63 of the upper and lower narrow bar on the shelf C (60),

The screw rod 73 of the angle adjusting lever 72 disposed on the shelf D 70 is engaged with the screw groove 64 formed on the shelf C 60, so that the shelf D 70 is moved forward and backward. To be transported, the guide protrusion 74 of the upper and lower narrow bar on the shelf D (70) is coupled with the guide groove 81 of the shelf E (80) disposed on the upper,

The threaded rod 83 of the angle adjusting lever 82 disposed on the shelf E 80 is coupled to the screw groove 75 of the shelf D 70, so that the shelf E 80 may be moved left and right. The side plate 84 placed on the shelf E 80 is disposed with a chuck holder portion 90 fitted to the hinge shaft 84 '.

The tilt scale plate 91 marked on the upper side of the chuck holder part 90 is a tool fixed by adjusting the inclination of the chuck holder part 90 after releasing the bolt 85 fastened to the hinge shaft 84 '. To check the inclination of the base blade of P), the angle adjustment plate 93 'is marked on the angle adjusting lever 93 disposed behind the chuck holder portion 90, and the angle adjusting lever 93 is the shaft 94. Bolt 96 is fastened to the bushing 95 arranged on the outer circumferential surface of the shaft 94, and the bolt 96 is fastened to a screw hole 97a drilled at one end of the leaf spring 97. A screw bolt 97b drilled at the other end of the leaf spring 97 is fastened to the bolt 99 fastened to the clip 98, and a control bolt is provided to the plurality of clip grooves 98 'formed on the outer circumferential surface of the clip 98. It is formed to be in contact with the end of the (100) and detached, the spring (S) is installed in the detachable lever 101 rod 101a disposed in the center of the chuck holder portion 90, the projections of the detachable lever 101 ( 101b) the chuck hole The part 90 may be detached from the protruding protrusion 102, and the rod 101a may be deposited with the pinion 103 in which starvation is divided at an angle of 15 °, and the pinion 103 is a shaft. It is constructed in (94).

Then, the chuck holder portion 90 and the side plate 84 can be disassembled on the shelf E 80 and the bite portion 120 can be installed at the position. The side plate of the bite portion 120 portion on the shelf E 80 is provided. (121) is entered, the boss 123a of the bite fixing piece 123 and the block 124 are coupled to the track-shaped hole 122 drilled in the side plate 121 and fastened with bolts 125, The upper side of the side plate 121 and the block 124 is drilled through the screw holes 121a and 124 'to which the height bolts 126 are fastened, and the screw holes 123b drilled above the byte fixing piece 123. A bolt 128 that can fix the bite 127 inserted into the insertion hole 123c is fastened, and one side of the side plate 121 is raised and lowered so that the height of the bite fixing piece 123 can be known as it moves up and down. The scale 121b is marked, and on one side of the byte fixing piece 123, the rotating angle scale 123d is marked so that the angle of rotation of the byte fixing piece 123 is indicated. It will cost.

Embodiments of the present invention configured as described above are as follows.

Example 1

(When grinding the first and second clearance angles of the tool's edge)

The transfer handle A 31 at one end of the shelf A 30 by moving the chuck holder 104 on the shelf E 80 to a vertical dead point with the grinding wheel 21 disposed on the grinding unit 20. Rotating) rotates the threaded rod 32 connected to the transfer handle A 31, and the threaded rod 32 is engaged with the nut 41 which is under the shelf B 40, thereby turning the shelf B 40. Feed horizontally.

When the shelf B 40 is transferred and vertically crosses the chuck holder 104 and the grinding wheel 21 on the shelf E 80, the tool P is inserted into the chuck holder 104 to be fixed and then placed on the shelf C 60. Using the center gauge 61 in the level with the center of the tool (P).

Subsequently, when the lock lever 42 in the lower part of the shelf B 40 is released to advance the chuck holder unit 90 so that the tool grinding operation can be performed, the shelf B 40 becomes free from the shelf A 40. do.

And the operation of the grinding unit 20 to grind the lower edge of the tool is to operate the driving motor (not shown) in the grinding unit 20, it drives the grinding wheel 21 built on the axis.

In the state where the initial work for grinding the base clearance angle of the tool P is completed as described above, when the transfer handle B 46 behind the lathe B 40 is rotated clockwise, the transfer handle B 46 and The integrated threaded rod 46 'is screwed into the screw groove 35 at the bottom of the shelf A 30, and the shelf B 40 is transferred forward and

The rack gear 43 at one end of the shelf B 40 is engaged with the pinion 33 'formed on the shelf A 30 to advance the shelf B 40 in a horizontal state, and the base of the tool P is advanced. In contact with the grinding wheel 21, the lock lever 42 on the shelf B 40 is switched to the lock in such a situation so that the first clearance angle of the base of the tool is ground while the shelf B 40 is fixed. do.

After grinding the first clearance angle of the lower edge of the tool P as described above, release the bolt 85 on the side of the shelf E 80 to grind the secondary clearance of the lower edge of the tool P, which is the next step. The chuck holder portion 90 arranged at 84 is inclined forward and backward freely about the hinge axis 84. (The maximum tilt angle of the front and rear chuck holders is 20 °)

The angle of the chuck holder portion 90 is selected within 20 °, and then the bolt 85 is tightened again to fix the chuck holder portion 90, and the transfer handle B 46 is rotated clockwise as described above. The shelf B 40 is moved forward while the shelf C 60, the shelf D 70, the shelf E 80, and the chuck holder 90 are advanced at the same time so that the bottom of the tool P is lowered. When contacted with the grinding wheel 21, the locking lever 42 is switched to the lock to grind the secondary clearance angle in the fixed state of the tool (P).

Example 2

(When grinding the 1st and 2nd corners of the tool's outer cutting edges)

As described above, the chuck holder 104 on the shelf E 80 is moved to the vertical grind point with the grinding wheel 21 disposed on the grinding unit 20 and the center gauge on the shelf C 60. Using (61) to set the center and the horizontal of the tool (P) is the same,

However, since the tip position of the tool P moved to the vertical intersection point is the grinding starting point of the lower edge, the rear block gauge 45 'in the side guide groove 44 of the shelf B 40 is moved and fixed at the position thereof, and the shelf B Make sure stopper 34 does not go out anymore when 40 retracts.

On the other hand, shelf B (40) should be able to reciprocate before and after on table (A) and at the same time reciprocating of shelf (B) 40 to match the grinding length (l) of the outer cutting edges 1 and 2 of the tool (P). To set the stroke distance, the tip of the guide bar 25 installed on the grinding part 20 is positioned at the tip of the outer peripheral cutting edge of the tool P, and the transfer handle B 46 behind the lathe B 40 is moved. When rotating, the shelf B 40 advances, and the guide rod 25 lying at the tip of the cutting edge of the tool P descends along the blade groove P-1 of the tool P and reaches the end of the blade groove.

At this point, as the end point of the outer cutting edge, the front block gauge 45 in the side guide groove 44 of the shelf B 40 is moved and fixed so that the shelf B 40 is no longer deviated by the stopper 34 when the shelf B 40 moves forward. Do not

On the other hand, the 1st angle of the outer peripheral cutting of the tool P is based on 6 degrees normally, The procedure for setting the said 6 degrees is as follows.

First, the end of the guide rod 25 is positioned at the tip of the tool P outer peripheral cutting edge, and when the control bolt 97 in the chuck holder portion 90 is lowered to the right, the lower bolt portion is formed on the outer peripheral surface of the clip 98. A plurality of clip grooves (98 ') are in contact. In this case, the clip 98 cannot be rotated by the control bolt 97, and the control bolt 99 in the clip 98 is coupled with the leaf spring 97 to be suppressed by the angle adjusting lever 93. will be. That is, when the angle adjusting lever 93 in the chuck holder portion 90 is rotated counterclockwise, the shaft 94 inside the chuck holder portion 90 rotates and a bolt fixed to the shaft 94 ( 96 is configured to wind the leaf spring 97.

When the operator releases the angle adjusting lever 93 in the state in which the leaf spring 97 is wound as described above, the angle adjusting lever 93 returns to the clockwise direction by the elasticity of the leaf spring 97 and at the same time, the chuck holder 104. By rotating the tool P fixed to) as well, the guide rod 25 at the tip of the tool P outer peripheral cutting edge is raised by a spring (not shown) installed therein.

When the angle scale plate 93 indicated on the angle adjustment lever 93 is rotated by 6 ° in the reverse rotation process as described above, the operator stops the reverse rotation of the angle adjustment lever 93 and raises and lowers the guide rod 25. By adjusting the adjustment lever (25 ') is the first angle is set so that the guide rod 25 always starts grinding at 6 ° to the tip of the tool (P) outer peripheral cutting edge.

In the same manner as described above, it is possible to set 15 degrees of the second angle.

The guide rod 25 is positioned at the tip of the outer peripheral cutting edge of the tool P in a state where the first cutting edge angle of the outer peripheral cutting edge is set, and the reciprocating stroke distance? Of the grinding of the tool P is set, and the chuck holder portion 90 is disposed. Rotate the angle adjusting lever 93 in the counterclockwise direction to wind the leaf spring 95 and drive the angle adjusting lever 93 while driving the grinding wheel 21 of the grinding portion 20. When placed, the leaf spring 95 rotates the shaft 94 by elasticity, and at the same time, the tool P at the tip of the shaft 94 rotates. At this time, the guide bar 25 at the tip of the tool P outer peripheral cutting edge is vertically downward along the blade groove, and the tool P in contact with the grinding wheel 21 proceeds forward simultaneously with rotation, and the chuck holder portion. 90 proceeds simultaneously.

In addition, the shelf B 40 proceeds forward together, and the front block gauge 45 'in the guide groove 44 on the side is braked to the stopper 34 to stop the shelf B 40.

The operator rotates the transfer handle B 46 in the shelf B 40 counterclockwise to transfer the shelf B 40 to the rear, and the shelf B 40 The block gauge 45 in the guiding groove 44 on the side is braked by the stopper 45 "to stop the shelf B 40, and then several times in the same manner to cut the outer peripheral cutting edge of the tool P. The first angle is to be ground.

Example 3

(When grinding by tool sign)

Sign grinding by a trigonometric function in the plane is established by the basic method as shown in Fig. 12A.

In other words, a coordinate system with 0 as the origin is determined on the plane, the coordinates of the point on this plane are represented as (xy), and the unit circle centered on 0 is drawn with an oblique line OP which makes an angle θ with respect to the positive direction of the x-axis. With the intersection of P and the coordinate of P being (x, y), xy is determined whenever θ is given. At this time, the function θ → y is called a sine function and is expressed as y = sinθ.

When grinding the present invention by the sine function as described above, for example, looking at the x-axis distance of 100 mm around the zero point and setting the sine angle of 10 °, the measurement block gauge of various sizes (c) It can be seen that the measurement block gauge (c) of 17.3648 mm is used by the sign value.

In other words, as shown in Figs. 12B and C, the work table C 60 is set to 0 ° by placing a normal dial gauge (not shown) on the shelf C 60 in order to determine a coordinate system having zero origin in a plane. Tighten the bolts 53 in the turning part 50 in the state to prevent the shelf C 60 from moving, and then adjust the reference distance of the rod 62 installed below the turning C 60 from the center of the turning part 50. After determining the 100mm, one side fixed block gauge 52 that can rotate on the outer peripheral surface of the turning part 50 is set in close contact with the zero point. At this time, in order to fasten the fixed block gauge 52 so that the fixed block gauge 52 does not move, the fixing bolt gauge V is tightened in the direction of the turning part 50 to prevent the fixed block gauge 52 from moving.

As described above, when the fixed block gauge 52 position of one side is set, the measuring block gauge (c) of 17.3648 mm set by the value wrapped on the side of the fixed block gauge 52 fixed at the sine angle of the grinding tool 10 ° After close contact, the measuring block gauge (c) is ground by the rod 62 is tightly fixed to the turning part 50 and then ground by the signing method of the grinding tool.

On the other hand, the fixed block gauge 52 'in the swinging portion 50 can be in close contact with the rod 62, or can be rotated from 0 ° to 360 ° in the swinging portion 50, and the fixed block gauge of the swinging portion 50 is Each time the 52 'is rotated, the rod 62 is in close contact with each other so that the zero point can be found, and the sign values of the + and-of the tool P can be set.

(For reference, the measuring block gauges vary in width from 1.005mm to 50mm. The height varies depending on the width and the shape is rectangular.)

 In addition, even if the fixed block gauge 52 in the turning part 50 is rotated as needed, if the vertex is found, the vertex of the original position can be found accurately.

Example 4

(Grinding of bite tip)

The chuck holder 90 and the side plate 84 are disassembled on the shelf E 80 and the bite part 120 is installed at the position to grind the bite tip. The unit 120 is installed, and the primary marginal angle (center point) of the byte is set in the state where the byte 127 is provided in the byte insertion hole 123d.

That is, by loosening the bolt 125 on the rear side of the side plate 121, the byte fixing piece 123, the block 124 slides up and down, and then adjusts the height bolt 126 on the side plate 121, the bite The boss 123a of the fixing piece 123 is guided up and down along the track-shaped hole 122 to set the center point of the bite 127.

Subsequently, the secondary free angle (rotation angle) of the byte is set, and the rotation angle of the byte fixing piece 123 may be set based on the zero point of the rotation angle scale 123c.

As described above, the center point and the rotation angle of the bite fixing piece 123 are set, and then, as described above, the shelf E 80 is moved to the grinding wheel 21 of the grinding part 20 to vertically cross the bite 127. You can grind it in the ready state.

As described above, the present invention forms a hinge portion in the center of the body of the chuck holder, and a tilted scale plate is attached to the hinge portion, so that the angle of the base of the tool such as the end mill can be accurately ground, and the chuck holder portion The angle adjusting lever can be used at the tip to simultaneously perform the first and second cutting edges of the tool.The angle scale plate of the turning part adheres to the measuring block gauge closely to the desired angle based on the fixed block gauge. It is possible to precisely grind the 1st and 2nd cutting edges and the 1st and 2nd cutting edges of the cutting edge. The main body is divided into the upper and lower parts so that the upper body can be rotated at the desired angle. The angle scale plate is formed so that the spherical angle of the tool can be formed, and small cylindrical polishing, step, taper, split, There are effects that can be applied to bites, drills and cuts.

1 is a perspective view of the present invention.

Figure 2 is a side view of the present invention.

Figure 3 is a schematic front view of an operation state of the feed handle A and the grinding portion for horizontal movement of the shelf B of the present invention.

Figure 4 is an exploded perspective view of the interior of the chuck holder of the present invention

Figure 5 is an excerpt perspective view of the main division of the angular split plate of the present invention

Figure 6 is a schematic view of the action state of the removable lever of the present invention,

  (a) is the detachable lever is in a downward state,

  (b) is the detachable lever is up.

Figure 7 is a front view of the operating state of the control bolt applied to the present invention

Figure 8 is a side view of the center gauge applied to the present invention

9 is a front schematic view of a vertical intersection state of the grinding part and the tool of the present invention;

  (a) is the state before contact,

  (b) is the first angle of 6 circumference cutting of the tool is formed,

  (c) is the number 2 angle of the outer peripheral cutting 15 ° of the tool (P) is formed.

Figure 10 is a working state of the locking lever applied to the present invention

Figure 11 is a side cross-sectional view of the working state of the chuck holder of the present invention;

12 is a plan view of the working state of the fixed block gauge by the sign measurement of the present invention,

  (a) Plane trigonometric

  (b) is a state in which the fixed block gauge is in close contact with the center ball in the state of 0˚ angle by the dial gauge,

  (c) is an operating state diagram of the fixed block gauge with the dial gauge rotated 90 degrees at 0 degrees.

Figure 13 is a perspective view of the fixture of the bite showing another embodiment of the present invention.

Figure 14 is a cross sectional side view of Figure 13;

Claims (7)

Transfer handle A (31) for moving the shelf B (40) to the left and right on the shelf (10) main body (10), Locking lever 42 that the shelf B 40 can be released or fixed from the shelf A (30), Manual handle 33 having a pinion 33 'for engaging the rack gear 43 at both lower ends of the shelf B 40 so as to move the shelf B 40 before and after; On the side of the shelf B 40, the front and rear block gauges 45 and 45 'for setting the grinding reciprocating stroke distance value of the tool, The stopper 34 which prevents the departure of the shelf B 40 more than the grinding reciprocation stroke value of a tool, Transfer handle B 46 to transfer the shelf B 40 on the shelf A (30) before and after, The turning part 50 has an angle scale plate 51 that can visually check the value of the grinding edge of the tool, The angle scale plate 51 has a fixed block gauge 52 of the x-axis to allow the grinding angles of the first and second circumferential cutting edges 1 and 2 of the tool to be ground by a signed value, Another y-axis fixed block gauge 52 'in close contact with the sine value based on the fixed block gauge 52, The center gauge 61 for setting the center and the horizontal of the tool on the shelf C (60), The shelf C 60 has a rod 62 of 20 mm, which is 0 ° of the sign value, Shelf D (70) having a guide groove (71) which is engaged with the guide projection (63) of the shelf C (60) to move forward and backward, Shelf E (80) having a guide groove (81) which is engaged with the guide protrusion 74 of the shelf D (70) to move left / right, The hinge shaft 84 'of the shelf E 80, the chuck holder 90 for fixing the tool, The inclined scale plate 91 marked to check the inclination of the chuck holder unit 90 after loosening the bolt 85 fastened to the hinge shaft 84 ', Inside the chuck holder portion 90, the pressure adjusting lever 93 presses the coalesced leaf spring 97 in a counterclockwise direction and returns to reverse rotation by elasticity of the pressed leaf spring 97. ), In order to hold the leaf spring 97 at the inner / outer diameter end of the leaf spring 97, the bolt 96 fastened to the bushing 95 at the inner diameter, the bolt 99 fastened to the clip 98 at the outer diameter, A plurality of clip grooves 98 ′ formed on the outer circumferential surface of the clip 98 control bolts 100 for braking or releasing the rotation of the clip 98. A detachable lever 101 having a protrusion 101c for braking or releasing the pinion 103 in which starvation is divided at an angle of 15 ° installed on the central axis 94 of the chuck holder part 90, On the rear side of the main body 10, a plurality of control bolts 24b for controlling the rotating piece 23 of the clearance angle adjusting unit 22, The rotating piece 23 has a pinion (24c), the fixed piece 24 is engaged with the rack gear (23a), Tool grinding machine, characterized in that the front surface of the fixing piece 24 consists of a clearance angle scale plate (24a) for checking the rotation angle of the rotating piece (23). delete The method of claim 1, The screw rod 46 'integrated with the transfer handle B 46 is coupled to the screw groove 35 formed on the shelf A 30 so that the shelf B 40 can be moved forward / backward. Tool grinding machine. The method of claim 1, The screw rod 73 of the angle adjustment lever 72 formed on the shelf D 70 is engaged with the screw groove 64 formed on the shelf C 60 so as to transfer the shelf D 70 to the front and rear. Tool grinding machine, characterized in that. The method of claim 1, The screw rod 83 of the angle adjusting lever 82 formed on the shelf E 80 is engaged with the screw groove 74 formed on the shelf D 70 so that the shelf E 80 can be transferred left and right. Characterized by a tool grinding machine. The method of claim 1, The detachable lever 101 of the rod 101a is characterized in that the spring S is mounted so that the protrusion 101b of the detachable lever 101 can be detached from the protrusion 102 protruding from the chuck holder unit 90. Tool grinding machine. The method of claim 1, The bite portion 120 is installed on the shelf E (80) in a row with the chuck holder portion 90, A bolt 125 for allowing the boss 123a and the block 124 of the bite fixing piece 123 to be coupled to the track-shaped hole 122 of the side plate 121 of the bite part 120, Height bolt 126 fastened to the screw hole 121a of the side plate 121 and the screw hole 124 'of the block 124, A bolt 128 for fixing the bite 127 inserted into the bite insertion hole 123c into the screw hole 123b drilled into the bite fixing piece 123; On one side of the side plate 121, the height scale 121b, so as to know the height when the byte fixing piece 123 moves up and down, Tool bit grinder, characterized in that the rotation angle scale (123d) is marked on one side of the bite fixing piece (123) so as to know the angle of rotation of the bite fixing piece (123).