CN201405227Y

CN201405227Y - End milling cutter grinder

Info

Publication number: CN201405227Y
Application number: CN2009201313811U
Authority: CN
Inventors: 冯雨勤
Original assignee: Individual
Current assignee: TAIZHOU LIYOU PRECISION MACHINERY CO Ltd
Priority date: 2009-04-30
Filing date: 2009-04-30
Publication date: 2010-02-17
Anticipated expiration: 2019-04-30

Abstract

An end milling cutter grinder used for machining treatment of milling cutters comprises a motor fixing chassis, wherein, a motor is fixed at the bottom part of the chassis, a grinding wheel mask is fixed at the upper part of the chassis, a motor-driven grind wheel is arranged between the grinding wheel mask and the motor fixing chassis, the grinding wheel takes the shape of a column and comprisestwo circular truncated cones with opposite small ends, a first cylinder connecting the two circular truncated cones and a second cylinder connected to the outer end of either of the circular truncatedcones, the grinding wheel mask is provided with four end surface round holes which are exposed to the part with smaller taper on the side surface of the grinding wheel, the part with larger taper onthe side surface of the grinding wheel, the upper surface of the grinding wheel and the edges at the upper part of the grinding wheel respectively, positioning seats with different shapes are arrangedat the outer ends of the round holes respectively, and the positioning seats are engaged with a fixing sleeve for being connecting with a jacket and a milling cutter respectively. The utility model ensures that the machining can be carried out without the need for grinding wheel replacement, the incidence of the situation in which the short blade suffers from overcut cutting edge angle during theprocess of machining the long blade of a mill cutter with small diameter can be reduced, and blade width uniformity can be guaranteed among ground milling cutters, thereby ensuring the blade width ofthe ground milling cutter is consistent with the diameter of the milling cutter.

Description

The end mill(ing) cutter grinder

Technical field

The utility model relates to a kind of milling apparatus, relates in particular to a kind of end mill(ing) cutter grinder.

Background technology

The end mill(ing) cutter grinder is that a kind of end mill(ing) cutter that used cutting edge has been worn and torn of using always grinds again, makes milling cutter can grind the equipment of use repeatedly, and it prolongs the service life of milling cutter greatly.

At present, known end mill(ing) cutter grinder is by milling cutter grinder main body, the tool setting device of cutter length and cutting edge, the chuck and two swords of each model (φ 4～φ 12) milling cutter, three swords, the dedicated fixed cover of four swords constitutes, carry out milling cutter when grinding again, the cutter that will grind is put into corresponding cutter chuck earlier, again chuck is put into dedicated fixed cover (what grind as need is the dedicated fixed cover that the cutter of four swords is then selected four swords), the dedicated fixed cover that installs cutter is put into tool setting device, adjust the direction of milling cutter cutting edge and the length that cutter stretches out anchor clamps, locking fixture, then with the cutter adjusted according to processing sequence, put into three holes of emery wheel face shield, respectively to the front bevel angle of milling cutter, tool point angle, the back bevel angles grinds.

Because of when grinding the milling cutter back bevel angles, because tool diameter difference, need the width of back bevel angles also different, the back bevel angles that tool diameter is big needs wideer, the need that diameter is little are a little bit smaller, existing end mill(ing) cutter grinder adopts the mode of changing emery wheel to solve usually, adopt a kind of emery wheel when reaching the back bevel angles that processes φ 8～φ 12, adopt a kind of emery wheel during the cutter of processing φ 4～φ 6, need take the emery wheel face shield apart when changing emery wheel, and carry out the dust cleaning, use inconvenient, and often dismounting influences assembly precision easily, thereby influences the grinding precision of cutter.

Be illustrated in figure 1 as existing a kind of milling fixture group 210 of grinding milling cutter, milling cutter has been adjusted cutter length in tool setting device after, no matter the milling cutter of diameter, illustrated H value is the same, and in the front bevel angle 102 that grinds milling cutter, tool point angle 101, during back bevel angles 103, the end face 210 that all uses anchor clamps 201 is as locating surface, so the edge width S of the cutter that the cutter of different-diameter processes is the same (as shown in Figure 2), the degree of depth of back bevel angles is the same, can't adjust the width S of cutting edge according to the diameter of cutter, therefore the edge width of the cutter that processes is common, large diameter edge width S is too narrow, is that the edge width S of minor diameter is too big, and milling cutter little and φ 4, because edge width S is wide, the front bevel angle can't process, and causes little and milling cutter φ 4 to grind, and the degree of depth of back bevel angles processing also can't be adjusted, there is the little cutter of diameter, the phenomenon that the degree of depth of back bevel angles is dark excessively.

When processing front bevel angle 102 (as shown in Figure 2), because the area of the front bevel angle of two swords, three swords, four blade milling cutters varies in size, during grinding, varying in size of the angle that milling cutter need rotate, when grinding the milling cutter of two swords, three sword numbers, the fixed screw of the positioning seat at the oblique angle of the emery wheel face shield need being gone forward unclamps, realize the processing of front bevel angle by the rotation positioning seat, operate cumbersomely, frequently unclamp the positioning seat screw, influential to the machining accuracy of front bevel angle.

As shown in Figure 2 when processing four blade milling cutter tool point angles, because of four blade milling cutters have two long swords 120 and two short swords 121, as Fig. 3, shown in Figure 4, when the tool point angle of the long sword 120 of milling cutter processing, the center of milling cutter 202 needs in the range of work of the end face 220 of emery wheel, and certain distance arranged, after having guaranteed that two long swords 120 machine, there is certain overlapping processing the centre, during processing weak point sword 121, the center of milling cutter needs outside the range of work of emery wheel, and certain distance is arranged, avoid when processing weak point sword, emery wheel is run into long sword, existing grinder, the mode of the side-play amount that employing is fixing, no matter i.e. diameter, distance inconvenience when milling cutter center and short sword 121 ground when long sword 120 ground between the milling cutter center is when the long sword of processing minor diameter milling cutter, because lap is relatively large, the tool point angle of short sword can be crossed and cut (dash area shown in Figure 5), influence the grinding quality and the service life of milling cutter.

Summary of the invention

Need often to change emery wheel in order to solve in the existing milling cutter milling apparatus processing, and when the tool point angle of processing minor diameter milling cutter long sword, be prone to the short angle of throat basil cross cut and the milling cutter grinding after, no matter the tread tool diameter size of milling cutter, the problem that tread is all equally wide, it is consistent with the diameter of milling cutter to make milling cutter grind the back tread.The utility model provides a kind of end mill(ing) cutter grinder, by to emery wheel and emery wheel face shield and dedicated fixed Analysis of Nested Design, be implemented in and need not to change emery wheel in the process, and the tool point angle that has reduced the long sword of minor diameter milling cutter is as far as possible crossed the situation of cutting, and after the milling cutter of different-diameter grinds, tread difference, and big or small consistent with diameter.

For achieving the above object, the utility model adopts following technical scheme: a kind of end mill(ing) cutter grinder, comprise a collar plate shape motor fixed underpan, a motor is fixed in collar plate shape motor fixed underpan bottom, top is fixed with an emery wheel face shield, be formed with cavity between emery wheel face shield motor fixed underpan, be provided with an emery wheel that is connected with the output shaft of motor in the cavity, emery wheel is parallel with the motor fixed underpan.Described emery wheel is a column type, comprises the relative frustum of a cone of two small ends, is connected first cylinder between two frustums of a cone, and be connected in second cylinder of a frustum of a cone outer face; Four big circular holes are arranged on the emery wheel face shield, one of them is far away slightly from the cavity end in the side of cavity, circular hole is towards the less end face of locating of emery wheel side tapering, side at cavity is near slightly from the cavity end, circular hole is towards the end face of emery wheel side tapering larger part, and a circular hole is on cavity, and circular hole is towards the emery wheel upper surface, another circular hole is on cavity, and circular hole is towards the emery wheel top edge; All have an end face vertical in each circular hole outer end, be fixed with back bevel angles positioning seat, following back bevel angles positioning seat, tool point angle positioning seat or front bevel angle positioning seat in the end respectively with circular hole.

Described go up the back bevel angles positioning seat, down the back bevel angles positioning seat, and the front bevel angle positioning seat be a step cylinder, the end face of the end face of step and emery wheel face shield matches, one manhole is arranged in the middle of it, the conical surface that one end face of large cylinder has a chamfering to form, one small stair is arranged on the end face, and be provided with a plurality of alignment pins, the end face of large cylinder has a counterbore.

Described tool point angle positioning seat is a step cylinder, and the end face of the end face of step and emery wheel face shield matches, and a waist through hole is arranged in the middle of it, the conical surface that one end face of large cylinder has a chamfering to form, one small stair is arranged on the end face, and be provided with a plurality of alignment pins, the end face of large cylinder has a counterbore.

Described back bevel angles positioning seat, following back bevel angles positioning seat, tool point angle positioning seat and corresponding with the shape respectively fixed cover cunning of front bevel angle positioning seat of going up joined, and is connected with chuck in fixed cover.

Described chuck is a cylinder, and two screw holes are arranged on the face of cylinder, in the middle of the cylinder manhole is arranged, and through hole cooperates with the external diameter of milling cutter.Wherein the milling cutter of different-diameter need cooperate different chucks.

Described fixed cover comprises four sword fixed covers, three sword fixed covers and two sword fixed covers, and they are cylinder, and there is a manhole centre, and an end face has the rectangle step.

There are four small boss that highly equate the other end of described four sword fixed covers, two wherein relative boss respectively have a small stair, and the height of two small stairs equates that the external diameter of end face has a special-shaped step.

There are three small boss and two low slightly small boss of highly equating in the other end of described three sword fixed covers, and the external diameter of end face has a special-shaped step, and there is a round ring boss at the center of end face.

There are two small boss that highly equate the other end of described two sword fixed covers, the external diameter of end face has a special-shaped step.

Described motor is embedded in the cuboid metal shell, and the motor fixed underpan is locked on the metal shell.

Described emery wheel is fixed between emery wheel pressing plate and the axle sleeve, is connected with the output shaft of motor by axle sleeve again.

The utility model end mill(ing) cutter grinder, by design to the emery wheel face shield, the fixed position of two back bevel angles processing of design on the emery wheel face shield, be respectively applied for the back bevel angles of processing small-diameter cutter and the back bevel angles of major diameter cutter, thereby realize to change all milling cutters that emery wheel can be processed φ 2～φ 12.And by the chuck of every kind of cutter and the special designs of fixed cover are reached upward back bevel angles positioning seat (φ 2～φ 5 usefulness), following back bevel angles positioning seat (φ 6～φ 12 usefulness), the tool point angle positioning seat, the design of front bevel angle positioning seat, make at the cutter of the different diameter of processing and (two swords of different sword numbers, three swords, four swords) during cutter, different according to the size of tool diameter and sword number, design different front bevel angles, tool point angle, the working depth of back bevel angles, realize that cutter is through after grinding, the cutter tread and the back bevel angles degree of depth are consistent with the diameter of cutter, and avoided when the tool point angle of the long sword of processing minor diameter milling cutter, the tool point angle of short sword crossed cut, and grinding two swords, during the front bevel angle of three swords, need not to unclamp front bevel angle positioning seat screw, rotation front bevel angle positioning seat is processed the front bevel angle, the fixed cover that only needs to rotate milling cutter can be finished, thereby has improved the quality of efficient and milling cutter grinding greatly.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described further:

Fig. 1 is the schematic diagram after milling cutter is pressed from both sides in the milling fixture assembling of existing milling cutter grinder;

Fig. 2 is the partial enlarged drawing of the three-dimensional view of milling cutter;

Fig. 3 grinds the front view of tool point angle for existing milling cutter grinder;

Fig. 4 grinds the vertical view of tool point angle for existing milling cutter grinder;

When Fig. 5 grinds the tool point angle of the long sword of milling cutter for existing milling cutter grinder, the short sword of milling cutter is crossed the three-dimensional view of the milling cutter tip after cutting;

Fig. 6 comprises the three-dimensional view of metal shell part when not carrying out the milling cutter grinding for this patent milling cutter grinder;

Fig. 7 is the vertical view of this patent milling cutter grinder;

Fig. 8 is the N-N cutaway view of this patent milling cutter grinder;

Fig. 9 is the three-dimensional view of this patent milling cutter chuck;

Figure 10 A is the three-dimensional view of this patent four blade milling cutter fixed covers;

Figure 10 B is the vertical view of this patent four blade milling cutter fixed covers;

Figure 11 A is the three-dimensional view of this patent three blade milling cutter fixed covers;

Figure 11 B is the vertical view of this patent three blade milling cutter fixed covers;

Figure 12 A is the three-dimensional view of this patent two blade milling cutter fixed covers;

Figure 12 B is the vertical view of this patent two blade milling cutter fixed covers;

Figure 13 is the three-dimensional view of this patent milling cutter grinder duty;

Figure 14 is this patent milling cutter chuck and fixed cover, the configuration diagram of the good milling cutter of clamping;

Figure 15 is a this patent milling cutter grinder, the P-P cutaway view when grinding the edge of milling cutter angle;

A when Figure 16 is this patent milling cutter grinder grinding edge of milling cutter angle is to (as shown in figure 15) view;

Figure 17 is when grinding four blade milling cutter tool point angles, the partial enlarged drawing of Figure 16;

Figure 18 is when grinding three blade milling cutter tool point angles, the partial enlarged drawing of Figure 16;

Figure 19 is when grinding two blade milling cutter tool point angles, the partial enlarged drawing of Figure 16;

Figure 20 is a this patent milling cutter grinder, the R-R cutaway view when grinding the milling cutter front bevel angle;

Figure 21 is a this patent milling cutter grinder, and the B when grinding the milling cutter front bevel angle is to (as shown in figure 20) view;

Figure 22 is when grinding four blade milling cutter front bevel angles, the partial enlarged drawing of Figure 21;

Figure 23 is when grinding three blade milling cutter front bevel angles, the partial enlarged drawing of Figure 21;

Figure 24 is when grinding two blade milling cutter front bevel angles, the partial enlarged drawing of Figure 21;

Figure 25 is a this patent milling cutter grinder, the S-S cutaway view when grinding major diameter milling cutter (φ 6～φ 12) back bevel angles;

Figure 26 is a this patent milling cutter grinder, and the C when grinding major diameter milling cutter (φ 6～φ 12) back bevel angles is to view;

Figure 27 is a this patent milling cutter grinder, and the C when grinding four sword major diameter milling cutter (φ 6～φ 12) back bevel angles is to partial enlarged drawing;

Figure 28 is a this patent milling cutter grinder, and the C when grinding three sword major diameter milling cutter (φ 6～φ 12) back bevel angles is to partial enlarged drawing;

Figure 29 is a this patent milling cutter grinder, and the C when grinding two sword major diameter milling cutter (φ 6～φ 12) back bevel angles is to partial enlarged drawing;

Figure 30 is a this patent milling cutter grinder, the M-M cutaway view when grinding minor diameter milling cutter (φ 2～φ 5) back bevel angles;

Figure 31 is a this patent milling cutter grinder, and D is to view when grinding minor diameter milling cutter (φ 2～φ 5) back bevel angles;

Figure 32 is a this patent milling cutter grinder, and the D when grinding four sword minor diameter milling cutter (φ 2～φ 5) back bevel angles is to partial enlarged drawing;

Figure 33 is a this patent milling cutter grinder, and the D when grinding three sword minor diameter milling cutter (φ 2～φ 5) back bevel angles is to partial enlarged drawing;

Figure 34 is a this patent milling cutter grinder, and the D when grinding two sword minor diameter milling cutter (φ 2～φ 5) back bevel angles is to partial enlarged drawing.

The specific embodiment

This use novel when operation by grinder main body, tool setting device and chuck, the supporting use of fixed cover.As Fig. 6, Fig. 7, shown in Figure 8, a kind of its main body of end mill(ing) cutter grinder comprises metal shell 1, motor 2, motor fixed underpan 3, motor axle sleeve 4, emery wheel 5, emery wheel pressing plate 6, emery wheel face shield 7, goes up back bevel angles positioning seat 8 (φ 2～φ 5 usefulness), following back bevel angles positioning seat 9 (φ 6～φ 12 usefulness), tool point angle positioning seat 10, front bevel angle positioning seat 11,

alignment pin

12,13,14,15,16,17,18,19,20,21,22,23,24.Described metal shell 1 is the cuboid shell, and its upper surface is provided with the screw via hole on fixing motor chassis and leaves the fixedly position of tool setting device.Described motor 2 is a column type, there is circular output shaft the centre, end face has four screws to give prominence to end face, described motor fixed underpan 3 is a collar plate shape, one end face has a counterbore, the end face of counterbore contacts with the end face of motor, the end face of counterbore has four through holes, motor then is locked on the motor fixed underpan with screw by four through holes, motor fixed underpan end face has seven screw holes, and four evenly distribute, use and be locked on the metal shell, three screw holes are used and the fixed emery wheel face shield in addition, and there is an outstanding annulus other end of motor fixed underpan; Described motor axle sleeve 4 is a column type, be installed on the output shaft of motor, and a step arranged, the end that the axle sleeve external diameter is big has a counterbore, counterbore and motor output shaft match, there are two screw through-hole motor axle sleeve side, by screw with the motor drive shaft cover locking on motor output shaft, there is a screw hole motor axle sleeve other end; Described emery wheel 5 is a column type, two frustums of a cone that small end is relative are arranged, be located at first cylinder between two frustums of a cone, be connected in second cylinder of a frustum of a cone outer face, a center and a hole, step axle by centre bore and motor axle sleeve 4 matches, be installed on the motor axle sleeve 4, described emery wheel pressing plate 6 is an annular, one end face and abrasive wheel end face join, by screw emery wheel being locked at motor drive shaft puts, described emery wheel face shield 7 is the cavity of an open type, inner chamber is a column type, opening part has a step circular hole, the outstanding annulus external diameter of circular hole and motor fixed underpan 3 matches, the end face of opening part end face and motor fixed underpan 3 joins, the opening part end face has three screw via holes, by screw emery wheel face shield 7 is fixed on the motor fixed underpan 3, four big circular holes are arranged on the emery wheel face shield, two circular holes are in the side of cavity, one far away slightly from the cavity end, the less end face of locating of circular hole center and emery wheel side tapering is consistent, one near slightly from the cavity end, the circular hole center is consistent with the end face of emery wheel side tapering larger part, two circular holes are on cavity in addition, there is an end face vertical with circular hole at each circular hole place, three screw holes are arranged on each end face, wherein the end face of the cavity side circular hole is used and fixing back bevel angles positioning seat 8 (φ 2～φ 5 usefulness) that go up, another is used for fixing back bevel angles positioning seat 9 (φ 6～φ 12 usefulness) down, the end face in two top holes, one is used for fixing tool point angle positioning seat 10, another is used for fixing front bevel angle positioning seat 11; The described back bevel angles positioning seat 8 of going up, it is a step cylinder, the end face of the end face of step and emery wheel face shield matches, there is a manhole centre, the conical surface that an end face of large cylinder has a bigger chamfering to form, and end face has three screw holes, the small stair that one abnormal shape is arranged on the end face, three pin-and-holes are arranged on the end face,

alignment pin

12,13,14 is installed respectively, the end face of large cylinder has a counterbore; Described back bevel angles positioning seat 9 down, it is a step cylinder, the end face of the end face of step and emery wheel face shield matches, there is a manhole centre, the conical surface that an end face of large cylinder has a bigger chamfering to form, and end face has three screw holes, the small stair that one abnormal shape is arranged on the end face, three pin-and-holes are arranged on the end face,

alignment pin

15,16,17 is installed respectively, the end face of large cylinder has a counterbore; Described tool point angle positioning seat 10, it is a step cylinder, the end face of the end face of step and emery wheel face shield matches, there is a waist through hole centre, the conical surface that one end face of large cylinder has a bigger chamfering to form, end face has three screw holes, and a unequal-sided octagon small stair is arranged on the end face, four pin-and-holes are arranged on the end face,

alignment pin

18,19,20,21 is installed respectively; Described front bevel angle positioning seat 11, it is a step cylinder, the end face of the end face of step and emery wheel face shield matches, there is a manhole centre, the conical surface that one end face of large cylinder has a bigger chamfering to form, end face has three screw holes, and three pin-and-holes are arranged on the end face, and

alignment pin

22,23,24 is installed respectively.Described chuck 28 is a cylinder, two screw holes are arranged on the face of cylinder, one manhole 141 is arranged in the middle of the cylinder, the external diameter of through hole and milling cutter matches, so the milling cutter of different-diameter need be joined different chuck (φ 3, φ 4, φ 5, φ 6, φ 8, φ 10, φ 12 be totally seven chucks, and φ 2 and φ 4 are general) as shown in Figure 9.Described fixed cover 29 is a cylinder, shown in Figure 10 A, Figure 10 B, there is a manhole 155 centre, one end face has rectangle step 150,151, there are four small boss 153 that highly equate the other end, two wherein relative boss respectively have the height of 154, two small stairs of a small stair to equate that the external diameter of end face has a special-shaped step 160.(φ 2, φ 3, φ 4, φ 5, φ 6, φ 8, φ 10, φ 12 be totally eight four sword fixed covers).Described three sword fixed covers 30 are cylinder, shown in Figure 11 A, Figure 11 B, there is a manhole 176 centre, one end face has rectangle step 170,171, there are three small boss 173 and two low slightly small boss 174 of highly equating in the other end, the external diameter of end face has a special-shaped step 183, and there is a round ring boss 175 at the center of end face.(φ 2, φ 3, φ 4, φ 5, φ 6, φ 8, φ 10, φ 12 be totally eight three sword fixed covers).Described two sword fixed covers 31 are cylinder, shown in Figure 12 A, Figure 12 B, there is a manhole 194 centre, one end face has rectangle step 190,191, there are two small boss 193 that highly equate the other end, the external diameter of end face has a special-shaped step 198 (φ 2, φ 3, φ 4, φ 5, φ 6, φ 8, φ 10, φ 12 be totally eight two sword fixed covers).

As Figure 10 A, Figure 10 B, Figure 13, shown in Figure 14, be the working state figure of milling cutter at four abrasion sites, before milling cutter grinds, milling cutter need pass through tool setting device, milling cutter is fixed in the milling cutter chuck 28, and chuck is fixed in the fixed cover, the milling cutter that fixes by tool setting device, it is constant that the point of a knife 105 of the different diameters and the milling cutter of different sword numbers causes the distance L of fixed cover end face, and step 190 directions of the step 170 of the step 150 of cutting edge 104 directions of the long sword of milling cutter and fixed cover 29, three sword fixed covers 30, two sword fixed covers 31 are consistent.During use, turn on the power switch, make emery wheel under motor drives, rotation at a high speed, at first grind the tool point angle of milling cutter, fixed cover with the good milling cutter of clamping, be placed on the tool point angle positioning seat 10, as shown in figure 15, when grinding four blade milling cutters, the end face 152 of fixed cover 29 is contacted with the end face 301 of tool point angle positioning seat 10, match with the centre bore 302 of tool point angle positioning seat 10 (sliding joining) in the face of cylinder 140 of chuck 28, as Figure 16, shown in Figure 17, the plane 156 of fixed cover 29 is contacted with the face of cylinder of alignment pin 18, plane 158 contacts with the face of cylinder of alignment pin 21, plane 159 contacts with the face of cylinder of alignment pin 20, move horizontally fixed cover (Figure 17 upper arrow direction), mind-set in the milling cutter is moved away from the direction of emery wheel, the face of cylinder 140 of chuck 28 is contacted with the contact-making surface 303 of the mounting hole of tool point angle positioning seat 10, the grinding of the 130 pairs of blades of end face by emery wheel, the long angle of throat basil 120 faces of four blade milling cutters machine, take out fixed cover, and fixed cover revolved turn 90 degrees, put into the tool point angle positioning seat again, the plane 157 of fixed cover is contacted with the face of cylinder of alignment pin 18, the face of cylinder 140 of chuck 28 matches with the contact-making surface 303 of tool point angle positioning seat simultaneously, the grinding of the 130 pairs of blades of end face by emery wheel, the short angle of throat basil 121 faces of four blade milling cutters machine, and then fixed cover revolved turn 90 degrees twice, the long angle of throat basil of the another one of milling cutter processing and a short angle of throat basil successively, as shown in figure 17, by the distance X that the fixed cover center is arrived on the plane 156 and the plane 157 of fixed cover 29, Y is (as Figure 10 A, Figure 10 B) different designs, make when adding section chief's sword the milling cutter center in the grinding scope of abrasive wheel end face 130, the center of milling cutter is outside the range of work of abrasive wheel end face during processing weak point sword, milling cutter according to different diameters and sword number, when adding section chief's sword, the side-play amount difference of milling cutter center in abrasive wheel end face 130, so the different diameters and the milling cutter of sword number, 156 of its fixed covers are also different to the distance X at fixed cover center, avoided lacking sword cross the problem of cutting when adding section chief's sword thereby make.

As Fig. 9, Figure 11 A, Figure 11 B, Figure 18, when grinding three blade milling cutter tool point angles, the annulus end face 175 of three sword fixed covers 30 is contacted with the end face 301 of tool point angle positioning seat 10, the face of cylinder 140 of chuck 28 matches with mounting hole 302 faces of cylinder of the centre of tool point angle positioning seat 10, the plane 181 of fixed cover 30 is contacted with the face of cylinder of alignment pin 19, plane 177 contacts with the face of cylinder of alignment pin 21, plane 178 contacts with the face of cylinder of alignment pin 20, move horizontally fixed cover (Figure 18 upper arrow direction), mind-set in the milling cutter is moved away from the direction of emery wheel, the face of cylinder 140 of chuck 28 is contacted with the contact-making surface 303 of the mounting hole of tool point angle positioning seat 10, the grinding of the 130 pairs of blades of end face by emery wheel, the long angle of throat basil 120 faces of three blade milling cutters machine, take out fixed cover, and with fixed cover rotation 120 degree, put into the tool point angle positioning seat again, the plane 182 of fixed cover is contacted with the face of cylinder of alignment pin 19, the face of cylinder 140 of chuck 28 matches with the contact-making surface 303 of tool point angle positioning seat simultaneously, the short angle of throat basil 121 faces of three blade milling cutters machine, and then, process the tool point angle of the short sword of another one of three blade milling cutters with fixed cover rotation 120 degree.As shown in figure 18, by the distance X that the fixed cover center is arrived on the plane 181 and the plane 182 of fixed cover 29, Y is (as Figure 11 A, Figure 11 B) different designs, make when adding section chief's sword the milling cutter center in the grinding scope of abrasive wheel end face 130, the center of milling cutter is outside the range of work of abrasive wheel end face during processing weak point sword, according to different diameters three blade milling cutters, when adding section chief's sword, the side-play amount difference of milling cutter center in abrasive wheel end face 130, so three blade milling cutters of different diameters, 181 of its fixed covers are also different to the distance X at fixed cover center, avoided lacking sword cross the problem of cutting when adding section chief's sword thereby make.

As Figure 12 A, Figure 12 B, shown in Figure 19, when grinding two blade milling cutter tool point angles, the annulus end face 192 of two sword fixed covers 31 is contacted with the end face 301 of tool point angle positioning seat 10, the face of cylinder 140 of chuck 28 matches with mounting hole 302 faces of cylinder of the centre of tool point angle positioning seat 10, the plane 196 of fixed cover 31 is contacted with the face of cylinder of alignment pin 18, plane 195 contacts with the face of cylinder of alignment pin 21, plane 196 contacts with the face of cylinder of alignment pin 19, move horizontally fixed cover (Figure 19 upper arrow direction), mind-set in the milling cutter is moved away from the direction of emery wheel, the face of cylinder 140 of chuck 28 is contacted with the contact-making surface 303 of the mounting hole of tool point angle positioning seat 10, the grinding of the 130 pairs of blades of end face by emery wheel, tool point angle 120 faces of two blade milling cutters machine, take out positioning sleeve 31, with fixed cover Rotate 180 degree, put into the tool point angle positioning seat again, grind another tool point angle.By the design that the distance X (as Figure 12 A, Figure 12 B) at fixed cover center is arrived on the plane 196 of fixed cover 31, the milling cutter center is in the grinding scope of abrasive wheel end face 130 when making the processing tool point angle, according to different diameters two blade milling cutters, when the processing tool point angle, the side-play amount difference of milling cutter center in abrasive wheel end face 130, so two blade milling cutters of different diameters, 196 distance X to the fixed cover center of its fixed cover are also different.

And as shown in Figure 6, by

alignment pin

17,18,19,20,21 Position Design and two swords, the relevant position design of three swords, four sword fixed covers, make fixed cover when putting into tool point angle positioning seat 10, four sword fixed covers have only four fixing edge of milling cutter angle abrasion sites can put into three sword fixed covers and have only three fixing edge of milling cutter angle abrasion sites can put into two sword fixed covers to have only two fixing edge of milling cutter angle abrasion sites to put into, when putting into, other positions can interfere with alignment pin, can't put into, thereby the misoperation of avoiding is with fixed cover side's wrong position.

As Figure 21, shown in Figure 22, and then the front bevel angle of grinding milling cutter, the milling cutter of tool point angle will have been ground, put into front bevel angle positioning seat 11, as shown in figure 20, when grinding four blade milling cutters, the raised head face 153 of fixed cover 29 is contacted with the end face 321 of front bevel angle positioning seat 11, match with the centre bore 322 of front bevel angle positioning seat 11 (sliding joining) in the face of cylinder 140 of chuck 28, the plane 158 of fixed cover 29 contacts with the face of cylinder of alignment pin 23, clockwise rotate fixed cover, the plane 159 of fixed cover 29 is contacted with the face of cylinder of alignment pin 24, the raised head face 153 that need be maintained fixed cover 29 during rotation contacts with the end face 321 of front bevel angle positioning seat 11, the grinding of the 130 pairs of front bevel angles of end face by emery wheel, a front bevel angle 102 of four blade milling cutters machines, and takes out fixed cover, and fixed cover revolved turn 90 degrees, put into the front bevel angle positioning seat again, corotation changes 3 times, grinds the front bevel angle of other three swords successively, and the front bevel angle of four blade milling cutters machines.

As scheme shown in Figure 23, when grinding three blade milling cutters, the raised head face 173 of fixed cover 30 is contacted with the end face 321 of front bevel angle positioning seat 11, match with the centre bore 322 of front bevel angle positioning seat 11 (sliding joining) in the face of cylinder 140 of chuck 28, the plane 177 of fixed cover 30 contacts with the face of cylinder of alignment pin 23, clockwise rotate fixed cover, the arc surface 179 of fixed cover 30 is contacted with the face of cylinder of alignment pin 23, the raised head face 173 that need be maintained fixed cover 30 during rotation contacts with the end face 321 of front bevel angle positioning seat 11, the grinding of the 130 pairs of front bevel angles of end face by emery wheel, a front bevel angle 102 of three blade milling cutters machines, and takes out fixed cover, and with fixed cover rotation 120 degree, put into the front bevel angle positioning seat again, corotation changes 2 times, grinds the front bevel angle of other two swords successively, and the front bevel angle of three blade milling cutters machines.By design to fixed cover 30 and alignment pin 23 and 24, when making the front bevel angle that grinds three blade milling cutters, only need the rotation fixed cover, can machine the front bevel angle, need not to unclamp front bevel angle positioning seat screw, the rotation positioning seat is processed the front bevel angle of three blade milling cutters.

As shown in figure 24, when grinding two blade milling cutters, the raised head face 193 of fixed cover 31 is contacted with the end face 321 of front bevel angle positioning seat 11, match with the centre bore 322 of front bevel angle positioning seat 11 (sliding joining) in the face of cylinder 140 of chuck 28, the plane 195 of fixed cover 31 contacts with the face of cylinder of alignment pin 23, clockwise rotate fixed cover, the plane 197 of fixed cover 31 is contacted with the face of cylinder of alignment pin 23, the raised head face 193 that need be maintained fixed cover 31 during rotation contacts with the end face 321 of front bevel angle positioning seat 11, the grinding of the 130 pairs of front bevel angles of end face by emery wheel, a front bevel angle 102 of two blade milling cutters machines, take out fixed cover, and, put into front bevel angle positioning seat 11 again fixed cover Rotate 180 degree, grind the front bevel angle of another one sword, the front bevel angle of two blade milling cutters machines.By design to fixed cover 31 and alignment pin 23, when making the front bevel angle that grinds two blade milling cutters, only need the rotation fixed cover, can machine the front bevel angle, need not to unclamp front bevel angle positioning seat screw, the rotation positioning seat is processed the front bevel angle of three blade milling cutters.

And as shown in Figure 6, the relevant position design of Position Design by alignment pin 22,23,24 and two swords, three swords, four sword fixed covers, make fixed cover when putting into front bevel angle positioning seat 11, four sword fixed covers have only four fixing milling cutter front bevel angle abrasion sites to put into, three sword fixed covers have only three fixing milling cutter front bevel angle abrasion sites can put into two sword fixed covers to have only two fixing milling cutter front bevel angle abrasion sites to put into, when putting into, other positions can interfere with alignment pin, can't put into, thereby the misoperation of avoiding is with fixed cover side's wrong position.As shown in figure 25, and then the back bevel angles of grinding milling cutter, when the milling cutter that grinds is major diameter milling cutter (φ 6～φ 12), the milling cutter of tool point angle and front bevel angle will have been ground, put into down in the back bevel angles positioning seat 9, when grinding four blade milling cutters, the end face 152 of fixed cover 29 is contacted with the end face 341 of following back bevel angles positioning seat 9, match with the centre bore 342 of following back bevel angles positioning seat 9 (sliding joining) in the face of cylinder 140 of chuck 28, as Figure 26, shown in Figure 27, the plane 159 of fixed cover 29 contacts with the face of cylinder of alignment pin 16, rotate counterclockwise fixed cover, the plane 161 of fixed cover 29 is contacted with the face of cylinder of alignment pin 16, the end face 152 that need be maintained fixed cover 29 during rotation contacts with the end face 341 of back bevel angles positioning seat 9, the conical surface 134 by emery wheel, the key groove that the face of cylinder 135 and end face 136 form grinds the long sword back bevel angles of milling cutter, a short sword back bevel angles 123 of four blade milling cutters machines, take out fixed cover, and fixed cover revolved turn 90 degrees, put into the back bevel angles positioning seat again, the step surface 154 of fixed cover 29 is contacted with the end face 341 of following back bevel angles positioning seat 9, the plane 159 of fixed cover 29 contacts with the face of cylinder of alignment pin 16, rotate counterclockwise fixed cover, the plane 161 of fixed cover 29 is contacted with the face of cylinder of alignment pin 16, the step surface 154 that need be maintained fixed cover 29 during rotation contacts with the end face 341 of back bevel angles positioning seat 9, the conical surface 134 by emery wheel, the key groove that the face of cylinder 135 and end face 136 form grinds the short sword back bevel angles of milling cutter, a long sword back bevel angles 124 of four blade milling cutters machines, take out fixed cover, again fixed cover is revolved along same direction and turn 90 degrees, put into back bevel angles positioning seat 9 again, rotate 2 times, grind the back bevel angles of the short sword of another one and the back bevel angles of long sword successively, then the back bevel angles of four blade milling cutters machines.As shown in figure 28, when grinding three blade milling cutters, the end face 172 of fixed cover 30 is contacted with the end face 341 of location, following back bevel angles 9, match with the centre bore 342 of following back bevel angles positioning seat 9 (sliding joining) in the face of cylinder 140 of chuck 28, the plane 178 of fixed cover 30 contacts with the face of cylinder of alignment pin 16, rotate counterclockwise fixed cover, the plane 180 of fixed cover 30 is contacted with the face of cylinder of alignment pin 16, the end face 172 that need be maintained fixed cover 30 during rotation contacts with the end face 341 of back bevel angles positioning seat 9, the conical surface 134 by emery wheel, the key groove that the face of cylinder 135 and end face 136 form grinds the short sword back bevel angles of milling cutter, a short sword back bevel angles 123 of three blade milling cutters machines, take out fixed cover, and with fixed cover turn clockwise 120 the degree, put into down again in the back bevel angles positioning seat 9, the step surface 174 of fixed cover 30 is contacted with the end face 341 of location, following back bevel angles 9, plane 178 contacts with the face of cylinder of alignment pin 16, rotate counterclockwise fixed cover, the plane 180 of fixed cover 30 is contacted with the face of cylinder of alignment pin 16, the end face 172 that need be maintained fixed cover 30 during rotation contacts with the end face 341 of back bevel angles positioning seat 9, the conical surface 134 by emery wheel, the key groove that the face of cylinder 135 and end face 136 form grinds the long sword back bevel angles of milling cutter, a long sword sword back bevel angles 124 of three blade milling cutters machines, take out fixed cover, and with fixed cover turn clockwise 120 the degree, put into down again in the back bevel angles positioning seat 9, process another short sword back bevel angles, then the back bevel angles of three blade milling cutters machines.As shown in figure 29, when grinding two blade milling cutters, the end face 192 of fixed cover 31 is contacted with the end face 341 of following back bevel angles positioning seat 9, match with the centre bore 342 of following back bevel angles positioning seat 9 (sliding joining) in the face of cylinder 140 of chuck 28, the plane 197 of fixed cover 31 contacts with the face of cylinder of alignment pin 17, rotate counterclockwise fixed cover, the plane 195 of fixed cover 31 is contacted with the face of cylinder of alignment pin 15, the end face 192 that need be maintained fixed cover 31 during rotation contacts with the end face 341 of back bevel angles positioning seat 9, the conical surface 134 by emery wheel, the key groove that the face of cylinder 135 and end face 136 form grinds the back bevel angles of milling cutter, a back bevel angles 103 of two blade milling cutters machines, take out fixed cover, and with fixed cover Rotate 180 degree, put into back bevel angles positioning seat 9 under the cutter again, grind the back bevel angles of another one sword, the back bevel angles of two blade milling cutters machines.

As shown in figure 30, when the milling cutter that grinds is minor diameter milling cutter (φ 2～φ 5), the milling cutter of tool point angle and front bevel angle will have been ground, put into back bevel angles positioning seat 8, when grinding four blade milling cutters, the end face 152 that makes fixed cover 29 is (as Figure 10 A, Figure 10 B) end face 361 with last back bevel angles positioning seat 8 contacts, match with the centre bore 362 of last back bevel angles positioning seat 8 (sliding joining) in the face of cylinder 140 of chuck 28, as Figure 31, shown in Figure 32, the plane 159 of fixed cover 29 contacts with the face of cylinder of alignment pin 13, rotate counterclockwise fixed cover, the plane 161 of fixed cover 29 is contacted with the face of cylinder of alignment pin 13, the end face 152 that need be maintained fixed cover 29 during rotation contacts with the end face 361 of last back bevel angles positioning seat 8, the conical surface 133 by emery wheel, the key groove that the face of cylinder 132 and end face 131 form grinds the short sword back bevel angles of milling cutter, a short sword back bevel angles 123 of four blade milling cutters machines, take out fixed cover, and fixed cover revolved turn 90 degrees, put into back bevel angles positioning seat 8 again, the step surface 154 of fixed cover 29 is contacted with the end face 361 of last back bevel angles positioning seat 8, the plane 159 of fixed cover 29 contacts with the face of cylinder of alignment pin 13, rotate counterclockwise fixed cover, the plane 161 of fixed cover 29 is contacted with the face of cylinder of alignment pin 13, the step surface 154 that need be maintained fixed cover 29 during rotation contacts with the end face 361 of last back bevel angles positioning seat 8, the conical surface 133 by emery wheel, the key groove that the face of cylinder 132 and end face 131 form grinds the long sword back bevel angles of milling cutter, a long sword back bevel angles 124 of four blade milling cutters machines, take out fixed cover, again fixed cover is revolved along same direction and turn 90 degrees, put into back bevel angles positioning seat 9 again, rotate 2 times, grind the back bevel angles of the short sword of another one and the back bevel angles of long sword successively, then the back bevel angles of four blade milling cutters machines.As shown in figure 33, when grinding three blade milling cutters, the end face 172 of fixed cover 30 is contacted with the end face 361 of location, last back bevel angles 8, match with the centre bore 362 of last back bevel angles positioning seat 8 (sliding joining) in the face of cylinder 140 of chuck 28, the plane 178 of fixed cover 30 contacts with the face of cylinder of alignment pin 13, rotate counterclockwise fixed cover, the plane 180 of fixed cover 30 is contacted with the face of cylinder of alignment pin 13, the end face 172 that need be maintained fixed cover 30 during rotation contacts with the end face 361 of last back bevel angles positioning seat 8, the conical surface 133 by emery wheel, the key groove that the face of cylinder 132 and end face 131 form grinds the short sword back bevel angles of milling cutter, a short sword back bevel angles 123 of three blade milling cutters machines, take out fixed cover, and with fixed cover turn clockwise 120 the degree, put into back bevel angles positioning seat 8 again, the step surface 174 of fixed cover 30 is contacted with the end face 361 of location, last back bevel angles 8, plane 178 contacts with the face of cylinder of alignment pin 13, rotate counterclockwise fixed cover, the plane 180 of fixed cover 30 is contacted with the face of cylinder of alignment pin 13, the end face 172 that need be maintained fixed cover 30 during rotation contacts with the end face 361 of last back bevel angles positioning seat 8, the conical surface 133 by emery wheel, the key groove that the face of cylinder 132 and end face 131 form grinds the long sword back bevel angles of milling cutter, a long sword sword back bevel angles 124 of three blade milling cutters machines, take out fixed cover, and with fixed cover turn clockwise 120 the degree, put into back bevel angles positioning seat 8 again, process another short sword back bevel angles, then the back bevel angles of three blade milling cutters machines.As shown in figure 34, when grinding two blade milling cutters, the end face 192 of fixed cover 31 is contacted with the end face 361 of last back bevel angles positioning seat 8, match with the centre bore 362 of last back bevel angles positioning seat 8 (sliding joining) in the face of cylinder 140 of chuck 28, the plane 197 of fixed cover 31 contacts with the face of cylinder of alignment pin 14, rotate counterclockwise fixed cover, the plane 195 of fixed cover 31 is contacted with the face of cylinder of alignment pin 12, the end face 192 that need be maintained fixed cover 31 during rotation contacts with the end face 361 of last back bevel angles positioning seat 8, the conical surface 133 by emery wheel, the key groove that the face of cylinder 132 and end face 131 form grinds the back bevel angles of milling cutter, a back bevel angles 103 of two blade milling cutters machines, take out fixed cover, and with fixed cover Rotate 180 degree, put into back bevel angles positioning seat 9 under the cutter again, grind the back bevel angles of another one sword, the back bevel angles of two blade milling cutters machines.

And as shown in Figure 6, by

alignment pin

12,13,14,15,16,17 Position Design and two swords, the relevant position design of three swords, four sword fixed covers, make fixed cover on putting into when back bevel angles positioning seat 8 and following back bevel angles positioning seat 9, four sword fixed covers have only four fixing milling cutter back bevel angles abrasion sites to put into, three sword fixed covers have only three fixing milling cutter back bevel angles abrasion sites can put into two sword fixed covers to have only two fixing milling cutter back bevel angles abrasion sites to put into, when putting into, other positions can interfere with alignment pin, can't put into, thereby the misoperation of avoiding is with fixed cover side's wrong position.

As shown in Figure 2, the tread S of milling cutter is by grinding tool point angle 101 and front bevel angle 102 back formation, after the degree of depth of tool point angle processing is fixing, it is dark more that front bevel angle 102 processes, then tread S is narrow more, otherwise it is then wide more, when grinding tool point angle, four blade milling cutter locating surfaces are the end face 152 of fixed cover 29, three blade milling cutter locating surfaces are the anchor ring 175 of fixed cover 30, the locating surface of two blade milling cutters is the end face 192 of fixed cover 31, when grinding the front bevel angle, four blade milling cutter locating surfaces are the raised head face 153 of fixed cover 29, three blade milling cutter locating surfaces are the raised head face 173 of fixed cover 30, the locating surface of two blade milling cutters is the end face 193 of fixed cover 31, also different according to the tread that the milling cutter of different-diameter is required, S is wide more for the big more then tread of milling cutter, by the adjustment (difference in height between 152 and 153 of four sword fixed covers 29 to the difference in height of the fixed cover tool point angle locating surface of different-diameter milling cutter and front bevel angle locating surface, difference in height between 175 and 173 of three sword fixed covers 30, difference in height between 192 and 193 of two sword fixed covers 31), it is consistent with milling cutter diameter to make milling cutter grind the back tread.As shown in figure 14, because of the milling cutter that fixes by tool setting device, it is constant that the point of a knife 105 of the different diameters and the milling cutter of different sword numbers causes the distance L of fixed cover end face, when grinding the back bevel angles, the back bevel angles locating surface of the short sword of four blade milling cutters is the end face 152 of fixed cover 29, the back bevel angles locating surface of long sword is the step surface 154 of fixed cover 29, the back bevel angles locating surface of the short sword of three blade milling cutters is the end face 172 of fixed cover 30, the back bevel angles locating surface of long sword is the step surface 174 of fixed cover 30, the back bevel angles locating surface of two blade milling cutters is the end face 192 of fixed cover 31, according to different-diameter, the difference of the degree of depth of the back bevel angles that the milling cutter of different sword numbers is required, by to different-diameter, the locating surface of the fixed cover of the milling cutter of different sword numbers is to the adjustment (end face 152 of four sword fixed covers of fixed cover bottom surface distance, step surface 154 is to the distance of fixed cover bottom surface 165, the end face 172 of three sword fixed covers, step surface 174 is to the distance of fixed cover bottom surface 175, the end face 192 of two sword fixed covers is to the distance of fixed cover bottom surface 198), make the degree of depth of back bevel angles, milling cutter grinding back consistent with milling cutter diameter.

Claims

1, a kind of end mill(ing) cutter grinder, comprise a collar plate shape motor fixed underpan (3), a motor (2) is fixed in collar plate shape motor fixed underpan (3) bottom, top is fixed with an emery wheel face shield (7), between emery wheel face shield (7) motor fixed underpan (3), be formed with cavity, be provided with an emery wheel (5) that is connected with the output shaft of motor (2) in the cavity, emery wheel (5) is parallel with motor fixed underpan (3), it is characterized in that: described emery wheel (5) is a column type, comprise two frustums of a cone that small end is relative, be connected first cylinder between two frustums of a cone, and be connected in second cylinder of a frustum of a cone outer face; Four big circular holes are arranged on the emery wheel face shield, one of them is far away slightly from the cavity end in the side of cavity, circular hole is towards the less end face of locating of emery wheel side tapering, side at cavity is near slightly from the cavity end, circular hole is towards the end face of emery wheel side tapering larger part, and a circular hole is on cavity, and circular hole is towards the emery wheel upper surface, another circular hole is on cavity, and circular hole is towards the emery wheel top edge; All have an end face vertical in each circular hole outer end, be fixed with back bevel angles positioning seat (8), following back bevel angles positioning seat (9), tool point angle positioning seat (10) or front bevel angle positioning seat (11) in the end respectively with circular hole.

2, end mill(ing) cutter grinder according to claim 1, it is characterized in that: described back bevel angles positioning seat (8), following back bevel angles positioning seat (9) and the front bevel angle positioning seat (11) gone up is a step cylinder, the end face of the end face of step and emery wheel face shield matches, one manhole is arranged in the middle of it, the conical surface that one end face of large cylinder has a chamfering to form, one small stair is arranged on the end face, and be provided with a plurality of alignment pins, the end face of large cylinder also is provided with a counterbore; Described tool point angle positioning seat (10) is a step cylinder, the end face of the end face of step and emery wheel face shield (7) matches, one waist through hole is arranged in the middle of it, the conical surface that one end face of large cylinder has a chamfering to form, one small stair is arranged on the end face, and be provided with a plurality of alignment pins, also be provided with a counterbore at the end face of large cylinder.

3, end mill(ing) cutter grinder according to claim 1, it is characterized in that: described going up corresponding with shape respectively sliding joining of fixed cover (29,30,31) of back bevel angles positioning seat (8), following back bevel angles positioning seat (9), tool point angle positioning seat (10) and front bevel angle positioning seat (11) is connected with chuck (28) in fixed cover.

4, end mill(ing) cutter grinder according to claim 3 is characterized in that: described chuck (28) is a cylinder, and two screw holes are arranged on the face of cylinder, in the middle of the cylinder manhole (141) is arranged, and through hole cooperates with the external diameter of milling cutter.

5, end mill(ing) cutter grinder according to claim 3, it is characterized in that: described fixed cover comprises four sword fixed covers (29), three sword fixed covers (30) and two sword fixed covers (31), they are cylinder, and there is a manhole centre, and an end face has the rectangle step.

6, end mill(ing) cutter grinder according to claim 5, it is characterized in that: there are four small boss (153) that highly equate the other end of described four sword fixed covers (29), two wherein relative boss respectively have a small stair (154), and the height of two small stairs equates that the external diameter of end face has a special-shaped step (160).

7, end mill(ing) cutter grinder according to claim 5, it is characterized in that: there are three small boss (173) and two the low slightly small boss (174) that highly equate in the other end of described three sword fixed covers (30), the external diameter of end face has a special-shaped step (183), and there is a round ring boss (175) at the center of end face.

8, end mill(ing) cutter grinder according to claim 5 is characterized in that: there are two small boss (193) that highly equate the other end of described two sword fixed covers (31), the external diameter of end face has a special-shaped step (198).

9, end mill(ing) cutter grinder according to claim 1 is characterized in that: described motor (2) is embedded in the cuboid metal shell (1), and motor fixed underpan (3) is locked on the metal shell (1).

10, end mill(ing) cutter grinder according to claim 1 is characterized in that: described emery wheel (5) is fixed between emery wheel pressing plate (6) and the axle sleeve (4), is connected with the output shaft of motor by axle sleeve (4) again.