JP2005193365A - End mill cutting edge grinding jig - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an end mill cutting edge grinding jig which is for use in reproducing a cutting edge of an end mill. <P>SOLUTION: The end mill cutting edge grinding jig 1 is used for a machine tool such as a cutter grinder for a surface grinder 50, a milling machine, and a horizontal milling machine which may be existing or newly acquired ones. The machine tool has a laterally, longitudinally or vertically movable table 61, and the grinding jig is fixed to the table. The end mill grinding jig is formed of a stand member 3 mounted on the table, an elevation angle selecting stand 6 borne on the stand member, an erection angle selecting stand 9 borne on the elevation angle selecting stand, and an end mill holding section 10 arranged on the erection angle selecting stand. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention is set on a machine tool such as a surface grinder, a milling machine, or a horizontal milling machine that has a table that can move left and right, move back and forth, and move up and down. The present invention relates to a tool for polishing an end mill blade tip used for regenerating a blade tip.

  Recently, milling machines are often used in the surface cutting work of materials in place of savers that have been used in the past. In particular, milling machines that do not take up much space are playing an active part in the town factory.

  In the case of a plane cutting operation performed using a milling machine, the end mill is replaced and used relatively frequently. End mills used in this way are expensive and one of the weak points of milling machines.

  In the first place, the end mill is configured so that it can be re-polished and regenerated when the cutting edge cannot be cut. However, the re-polishing is not always easy, and the operator himself / herself does not re-grind himself / herself. There were many to put in. When outsourced, according to the catalog of the end mill manufacturer, it takes about 10 to 10 days to recover and return to hand, and 20% to 30% of new polishing costs are required. Therefore, it is not preferable in terms of days and economics.

  In addition, due to the above-mentioned problems of days and economics, when the worker himself / herself re-grinds and uses it, skill is required, and in the category of self-satisfaction, it is used without being sufficiently satisfied. Most of the time, and sometimes it was a great mistake.

  Furthermore, the present inventor collected end mills that could not be cut for free from many mills using a milling machine when researching end mill edge cutting, and as a result of investigating them, the cutting edge was tempered. It was found that there were the largest number of products, and extremely few were polished and recycled.

  Further, most of the reasons not to recycle and use are due to the time problem, the economic problem, the skill level, and the like.

  Because of the above-mentioned problems, it was known that it was uneconomical at present, and there was a survey result that it was so-called disposable.

  On the other hand, conventionally, a wide variety of end mill edge grinders for regenerating the edge of the end mill have been provided (see Patent Document 1). However, these dedicated end mill edge grinders are a) expensive and not readily available, b) occupy a large space when obtained, c) difficult to handle, and a lot of time to complete the polishing. There was a problem such as this.

  According to the results of the survey, most machining factories have surface grinders, milling machines, and small grinders. It was found that one end mill was regenerated by performing only the number of sheets.

  Therefore, the present inventor found that most machining factories possess surface grinders, milling machines, etc., and small grinders, and that the end mill blade tip grinding operation is grinding / polishing of No. 2, No. 3 and Gash. In consideration of the fact that one end mill has been regenerated by performing only the number of blades, the existing tools for cutting edge polishing such as the surface grinding machine and the milling machine have a table that can move left and right, move back and forth, and move up and down. The present invention has been devised by paying attention to the fact that a small grinder can be easily attached and fixed to the main body of an existing machine such as a surface grinding machine or a milling machine.

  That is, the present inventor easily grinds the edge of an end mill by fixing an existing small grinder to the main body of the existing machine with the grindstone positioned above the table and using the table as it is. And the present invention was devised by finding out that it can be easily implemented.

Japanese Patent No. 2655554

  The present invention has been devised in order to solve the above-mentioned problems, and is placed on a table such as a surface grinder or a milling machine that is already owned or newly owned to regenerate the edge of the end mill. An object of the present invention is to provide a new end mill edge polishing jig that can be used for the purpose.

  In order to achieve the above object, in the end mill cutting edge polishing jig according to claim 1, a surface grinder, a milling machine, a blade milling machine for a horizontal milling machine, etc. provided with a table that can move left and right, move back and forth, and move up and down. It is used by being fixed on the table of a machine tool, and includes a base member placed on the table, an elevation angle selection base supported on the base member, and a bearing on the elevation angle selection base. It is comprised from the stand for standing angle selection made, and the end mill holding | maintenance part provided in the stand for standing angle selection.

  In the end mill cutting edge polishing jig according to claim 2, the base member has left and right upright walls on both right and left sides, and the elevation angle selection base has front and rear upright walls on both front and rear sides. The elevation / elevation angle selection table is supported between the left and right upright walls of the platform member so that one end thereof can swing up and down. The elevation angle of the elevation / elevation angle selection table is determined by a tightening screw. It is designed to be able to be fixed at an arbitrarily selected angle, and the upright angle selection table is supported between the front and rear upright walls of the elevation / elevation angle selection table so that the upper end thereof can swing left and right. The swing angle of the stand for selecting the standing angle can be fixed at an arbitrarily selected angle by a tightening screw, and the end mill holding portion is used for fixing the end mill on the upper surface of the stand for selecting the standing angle. It is characterized by being provided with holes.

  In the end mill cutting edge polishing jig according to claim 3, the end mill holding part includes a support column that is erected beside the holding hole of the end mill and a leveling pin that is provided above the support column. It is characterized by that.

  In the end mill cutting edge polishing jig according to claim 4, the end fixing hole of the end mill is formed in a shape composed of a V-groove half portion and a round hole half portion and the round hole half. A fixing screw of the end mill is provided on a side surface of the part.

  The end mill cutting edge polishing jig according to claim 5 is characterized in that the leveling pin can be changed by adjusting the height of the column.

  In the end mill cutting edge polishing jig according to claim 6, the lower end of the column is inserted into the holding hole, and a height determining ring is slidably fitted in the middle of the column. The determination ring can be fixed at an arbitrary height by a butterfly screw, and the length inserted into the holding hole can be adjusted by selecting the height of the height determination ring. It is characterized by that.

  In the end mill cutting edge polishing jig according to claim 7, the leveling pin is slidably inserted into a horizontal hole formed in the upper end of the support column, and the amount of protrusion of the tip thereof is increased by tightening the screw. It is characterized in that it can be determined.

  An end mill edge polishing tool according to claim 1 is fixed on the table of a machine tool such as a surface grinder, a milling machine, and a horizontal milling machine with a table that can move left and right, move back and forth, and move up and down. A base member mounted on the table; a elevation / elevation angle selection base supported on the base member; an upright angle selection base supported by the elevation / elevation angle selection base; Since it is comprised from the end mill holding part provided in the stand for angle selections, the existing small grinder is arranged in such a manner that its grindstone is positioned above the table, and is fixed to the main body of the existing machine. By using the table as it is, end milling of the end mill can be performed easily and easily, and the above-mentioned time, economic and skill problems can be solved. That.

  In the end mill cutting edge polishing jig according to claim 2, the platform member has left and right standing walls on both left and right sides, and the elevation angle selection platform has front and rear standing walls on both front and rear sides. The angle selection table is supported between the left and right upright walls of the table member so that one end thereof can swing up and down, and the elevation angle of the elevation angle selection table is arbitrarily selected by a fastening screw. The upright angle selection table is supported between the front and rear upright walls of the elevation / elevation angle selection table so that its upper end can be swung left and right. The swing angle of the angle selection table can be fixed to an arbitrarily selected angle by a tightening screw, and the end mill holding portion is provided with an end mill extension fixing hole on the upper surface of the standing angle selection table. It can be provided at a low cost with a simple configuration.

  The end mill cutting edge polishing jig according to claim 3, wherein the end mill holding portion includes a support column erected near a holding hole of the end mill and a leveling pin provided at an upper portion of the support column. Therefore, it is possible to accurately and easily position the cutting edge to be ground and regenerated.

  The end mill cutting edge polishing jig according to claim 4, wherein the holding hole of the end mill is formed in a shape composed of a V-groove half portion and a round hole half portion, and a side surface of the round hole half portion. Since the end mill fixing screw is provided on the end mill, the end mill holding and fixing operation is easy and speedy and convenient.

  Since the end mill cutting edge polishing jig according to claim 5 is characterized in that the leveling pin can be changed by adjusting the height of the support column, it can correspond to a regenerative end mill having a different length. .

  The end mill cutting edge polishing jig according to claim 6 is configured such that the lower end of the column is inserted into the holding hole, and a height determining ring is slidably fitted in the middle of the column to determine the height. The ring can be fixed at an arbitrary height by a butterfly screw, and the length inserted into the holding hole can be adjusted by selecting the height of the height determining ring. Because it is characterized by the fact that it is, it is easy to use and easy to adjust the height of the leveling pin.

  The end mill cutting edge polishing jig according to claim 7, wherein the leveling pin is slidably inserted into a horizontal hole drilled in an upper end of the support column, and a protruding amount of the tip can be determined by tightening a screw. Since it is characterized by being made, it can respond to the reproduction | regeneration end mill from which thickness differs.

  Hereinafter, an end mill cutting edge polishing jig 1 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing the whole. FIG. 2 is also a plan view. FIG. 3 is a side view. FIG. 4 is a front view showing a state of use. As shown in FIG. 4, the end mill blade edge polishing jig 1 includes, for example, an existing small grinder 51 with respect to an existing surface grinder 50 already owned, and a grindstone of the table 53 of the existing surface grinder 50. In a state of being fixed in an upper position, it is placed on the table 53 and used.

  The surface grinding machine 50 is a known one configured to move the iron table 53 left and right, front and rear, and up and down by operations of the left and right feed handles 54, the front and rear feed handles 55, and the vertical feed handles 56. The detailed description and detailed drawings are omitted. Further, it is desirable that the small grinder 51 can be used by arbitrarily exchanging a somewhat thick grindstone 52a and a thin grindstone 52b.

  The end mill cutting edge polishing jig 1 according to the embodiment is supported by a base member 3 placed on the iron table 53 and used on the base member 3 via horizontal axes 4 and 5 facing left and right. The elevation angle selection table 6, the standing angle selection table 9 supported on the elevation angle selection table 6 via the front and rear horizontal axes 7, 8, and the end mill provided above the standing angle selection table 9 The holding part 10 is comprised.

  The base member 3 is an iron U-shaped body integrally having left and right upright walls 11 and 12 on both left and right sides. The left and right upright walls 11 and 12 are provided with horizontal axes 4 and 5 facing left and right.

  The elevation / elevation angle selection base 6 is an iron U-shaped body integrally having front and rear standing walls 13 and 14 on both front and rear sides. The elevation / elevation angle selection base 6 is inserted between the left and right upright walls 11 and 12 of the base member 3 and supported on the left and right horizontal axes 4 and 5. Therefore, the elevation / elevation angle selection table 6 can perform a raising / lowering operation in which the rear end thereof moves up and down around the horizontal axes 4 and 5 that are directed to the left and right.

  The elevation angle of the elevation / elevation angle selection stand 6 can be fixed at an angle arbitrarily selected by front / rear side fixing screws 15, 16, 17 provided on the right standing wall 12 of the platform member 3, and once loosened. You can change the angle. Note that the number of front, middle, and rear side fixing screws 15, 16, and 17 may be one or more, so that the number can be increased or decreased. When a plurality of these front, middle and rear side fixing screws are used, it is preferable that they can be temporarily fixed or firmly fixed in multiple layers.

  The upright angle selection base 9 is provided with a holding hole 19 for the end mill 18 at a substantially central position on the upper surface thereof, and holding fixing holes 22 and 23 for the columns 20 and 21 at front and rear positions. It is an iron rectangular parallelepiped shape. The upright angle selection table 9 is inserted between the front and rear upright walls 13 and 14 of the elevation / elevation angle selection table 6 and supported by the front and rear horizontal shafts 7 and 8. Therefore, the upper end of the standing angle selection table 9 can swing left and right about the front and rear horizontal axes 7 and 8.

  The standing angle of the standing angle selecting table 9 can be fixed at an arbitrarily selected angle by left and right fixing screws 24 and 25 provided on the front standing wall 13 of the elevation / elevation angle selecting table 6. Moreover, the angle can be changed by once loosening. Since the left and right fixing screws 24 and 25 may be one or more, the number can be increased or decreased. When a plurality of these left and right fixing screws are used, it is preferable that they can be temporarily fixed or firmly fixed in multiples.

  The end mill holding portion 9 includes an upright fixing hole 19 of the end mill 18 pierced on an upper surface of the upright angle selecting table 9, an upright fixing holes 22, 23 of the support columns 20, 21, and the support 20, 21 is composed of leveling pins 26, 27 and the like provided at the upper part of 21.

  The end-fixing hole 19 of the end mill 18 is formed in a shape composed of a V-groove left half portion 28 and a round hole right half portion 29, and vertically on the right side surface of the round hole right half portion 29. A pair of fixing screws 30 and 31 are provided. These upper and lower fixing screws 30 and 31 are advanced and retracted so that their tips press the end mill 18 toward both wall boundary lines of the V-groove left half portion 28. Therefore, when the end mill 18 is tightened by the upper and lower fixing screws 30, 31, the end mill 18 is naturally maintained in a centering state in which the end mill 18 stands perpendicular to the upper surface of the standing angle selection table 7. As this maintaining means, a method of tightening from multiple directions, a method of using a stuffing member such as a wedge, a method of using a chuck, and the like can be adopted. Further, in the case of polishing only an end mill having the same thickness, it is only necessary to have a configuration having an end mill extending fixing hole having the same diameter as the thickness, and there is an advantage that the configuration and operation are simplified. .

  A pair of upper and lower anti-rotation fixing screws 32 and 33 are provided on the right side surface of the support fixing holes 22 and 23 of the support columns 20 and 21. The struts 20 and 21 set up in the holding holes 22 and 23 are set at the level of the blade when the blades 35a, 35b, 35c and 35d of the end mill 18 are leveled. Pins 26 and 27 are provided. The leveling pins 26 and 27 are provided because the cutting edges 35a, 35b, 35c, and 35d to be ground when grinding with the rotary grindstone 52 need to be horizontal. That is, when the end mill 18 is rotated, the cutting edges 35a, 35b, 35c, 35d of the end mill 18 correspond to the tips of the leveling pins 26, 27 in a close state so that the cutting edges 35a, 35b, 35c, 35d become horizontal. It is supposed to be. Therefore, the angle of the blade edge can be easily set to the horizontal level by visually confirming the angle. In order to avoid hitting the grindstone 52, the leveling pins 26, 27 are positioned somewhat below the blade edges 35a, 35b, 35c, 35d of the end mill 18 as shown in FIG. Used. Further, the leveling pins 26 and 27 can be implemented by being configured as a positioning type in contact with the cutting edges 35a, 35b, 35c and 35d of the end mill 18. There can be only one post with leveling pins. Thus, the advantage of using only one side is suitable for regeneration of an end mill having an odd number of blades such as three blades.

  A height determining ring 37 is slidably fitted in the middle of the support columns 20 and 21, and the height determining ring 37 can be fixed to an arbitrary height by a thumbscrew 38. That is, by selecting the height of the height determining ring 37, the lengths of the columns 20, 21 inserted into the holding holes 22, 23 are adjusted, and thereby the leveling pins 26, 27 are adjusted. The height of the can be determined to the optimal position. The leveling pins 26 and 27 are slidably inserted into a lateral hole 39 formed at the upper end of the support pillars 20 and 21, and the protruding amount of the tip is determined by tightening the slotted screw 40. Has been to be.

  In the figure, reference numeral 46 denotes an angle scale, and 47 denotes an index, which is used to determine the inclination angle of the standing angle selection table 9. Further, if necessary, an angle scale used for determining the inclination angle of the elevation / elevation angle selection table 6 can be provided.

  Next, a procedure for polishing a four-blade end mill using the end mill blade tip polishing jig 1 according to the embodiment will be described with reference to the drawings.

  First, as shown in FIG. 4, the end mill cutting edge polishing jig 1 according to the above-described embodiment is fixed on a table 53 of the surface grinder 50 using the magnet chuck device 57 included in the surface grinder 50. In this case, since the base member 3 is made of iron, the magnet chuck device 57 can be a chuck device using an electromagnet or a chuck device using a permanent magnet. The end mill blade edge polishing jig 1 can be fixed by a screwing method, a clamping method, or other methods.

  Thereafter, the end mill 18 is fixed to the end mill holder fixing hole 19 of the end mill holding portion 10 in the end mill cutting edge polishing jig 1 according to the embodiment using the upper and lower fixing screws 30 and 31. In the case of this fixing operation, the tips of the leveling pins 26 and 27 on both sides and the cutting edges 35a and 35c of the first and third blades in the end mill 18 are brought into a facing state. This directly-facing state can be secured easily and accurately by operating the height determining ring 37, the butterfly screw 38, the anti-rotation fixing screws 32 and 33, and the slotted screw 40. In this case, the leveling pins 26 and 27 are positioned slightly below the cutting edges 35a and 35c of the first and third blades so as not to contact the grindstone 52.

  Next, the standing angle selection base 9 is tilted by 8 degrees and fixed by the left and right side fixing screws 24 and 25, thereby completing the preparation for grinding the second edge of the blade edge 35a of the first blade. In this completed state, it is desirable that the cutting edge 35a of the first blade be in front of the operator. After this fixing, the grindstone 52 is rotated, and the front / rear, up / down and left / right operations of the table 53 are performed by the front / rear feed handle 55, the up / down feed handle 56 and the left / right feed handle 54. The operation of making contact with and separating from the outer peripheral surface is repeated several times, so that the second angle of the blade edge 35a of the first blade is first finished to 8 degrees (see FIG. 9). After this finishing, it is desirable to stop the grindstone 52 and place the cutting edge at a position away from the grindstone 52 in order to ensure safety.

  Next, after finishing the second corner of the cutting edge 35a of the first blade, the upper and lower fixing screws 30, 31 are once loosened in the state where the standing angle selection base 9 is tilted by 8 degrees, and the end mill is loosened. The second and fourth blade tips 35b and 3d are made to face the horizontal pins 26 and 27 by rotating 18 through 90 degrees, and the upper and lower fixing screws 30 and 31 are tightened to form the second sheet. The preparation for grinding the second corner of the blade edge 35b of the blade is completed. By doing so, the second corner of the blade edge 35b of the second blade is necessarily in the position in front of the operator while being inclined by 8 degrees as in the case of the first blade edge 35a. Fixed. After this fixing, the grindstone 52 is rotated, and the front / rear, up / down and left / right operations of the table 53 are performed by the forward / backward feed handle 55, the up / down feed handle 56 and the left / right feed handle 54. The second corner is finished to 8 degrees by repeating the operation of making contact with and separating from the outer peripheral surface several times (see FIG. 9). After this finishing, it is desirable to stop the grindstone in order to ensure safety, like the first blade 35a.

  Thereafter, the third blade edge 35c and the fourth blade edge 35d are sequentially finished in the same manner as the second angle of the second blade edge 35b, and the second edge grinding operation of each blade is performed. To complete.

  As described above, since the second angle grinding operation is performed for all the blades at the inclination angle of the standing angle selection table 9 determined once, the second angle of all the blades is constant and the same. There is an advantage that can be finished to an angle.

  After completing the No. 2 grinding operation, the No. 3 grinding operation is performed. In this third angle grinding operation, first, the standing angle selection table 9 is tilted by 20 degrees and fixed by the right and left side fixing screws 24, 25, thereby completing the preparation for third angle grinding of the blade edge 35a of the first blade. . In this completed state, it is desirable that the cutting edge 35a of the first blade be in front of the operator. After this fixing, the grindstone 52a is rotated, and the front / rear, up / down and left / right operations of the table 53 are performed by the forward / backward feed handle 55, the up / down feed handle 56, and the left / right feed handle 54, and the cutting edge 35a of the first blade is placed on the grindstone 52a. The operation of making contact with and separating from the outer peripheral surface is repeated several times, so that the third corner of the blade edge 35a of the first blade is first finished to 20 degrees (see FIG. 10). After this finishing, in order to ensure safety, it is desirable to stop the grindstone 52a and place the cutting edge at a position away from the grindstone 52a.

  Next, after finishing the third edge of the cutting edge 35a of the first blade, the upper and lower fixing screws 30 and 31 are once loosened while the upright angle selection base 9 is tilted by 20 degrees, and the end mill is loosened. The second and fourth blade tips 35b and 3d are made to face the horizontal pins 26 and 27 by rotating 18 through 90 degrees, and the upper and lower fixing screws 30 and 31 are tightened to form the second sheet. This completes preparation for grinding the third edge of the blade edge 35b of the blade. In this way, the 3rd corner of the blade edge 35b of the second blade is inevitably placed at a position in front of the worker while being tilted by 20 degrees as in the case of the first blade edge 35a. Fixed. After this fixing, the grindstone 52a is rotated, and the front / rear, up / down and left / right operations of the table 53 are performed by the forward / backward feed handle 55, the up / down feed handle 56, and the left / right feed handle 54, and the cutting edge 35b of the second blade is placed on the grindstone 52a. The work of making contact with and separating from the outer peripheral surface is repeated several times to finish the third corner to 20 degrees (see FIG. 10). After this finishing, it is desirable to stop the grindstone in order to ensure safety, like the first blade 35a.

  Thereafter, the third blade edge 35c and the fourth blade edge 35d are sequentially finished in the same manner as the third blade edge 35b of the second blade, and the third blade grinding operation of each blade is performed. To complete.

  As described above, the third angle grinding operation is performed so that all the blades are performed at the inclination angle of the standing angle selection table 9 determined once. Therefore, the third angle of all the blades is constant and the same. There is an advantage that can be finished to an angle.

  After the third angle grinding operation is completed, the thin grinding wheel 52b is replaced, and the upright angle selection table 9 is tilted by 60 degrees and fixed by the left and right fixing screws 24 and 25, and the elevation angle selection table 5 is tilted by 10 degrees. Then, the front, middle, and rear fixing screws 15, 16, and 17 are fixed to complete the preparation for grinding the gash 44 b of the second blade edge 35 b. In this completed state, it is desirable that the cutting edge 35a of the first blade be in front of the operator. After this fixing, the grindstone 52b is rotated, and the front / rear, up / down and left / right operations of the table 53 are performed by the forward / backward feed handle 55, the up / down feed handle 56, and the left / right feed handle 54. The operation of making contact with and separating from the outer peripheral surface is repeated several times, so that the gash 44b of the second blade edge 35b is first finished (see FIG. 11). After this finishing, in order to ensure safety, it is desirable to stop the grindstone 52b and place the cutting edge at a position away from the grindstone 52b.

  Next, after finishing the gash 44b of the second blade edge 35a, the upper and lower fixing screws 30, 31 are kept in a state where the standing angle selection table 9 is tilted by 60 degrees and the elevation angle selection table 5 is tilted by 10 degrees. Once the end mill 18 is rotated 90 degrees, the blade edges 35b and 3d of the second and fourth blades are horizontally aligned with the pins 26 and 27 and the upper and lower fixing screws 30 and 31 are moved. By tightening, the grinding preparation of the gash 44c of the third blade edge 35c is completed. By doing so, the gash 44c of the third blade edge 35c is inevitably inclined in the same manner as the gash 44b of the second blade edge 35b by the 60 ° inclination and elevation angle selection table of the upright angle selection table 9. Positioning is performed in the state of 5 degrees 10 degrees. After this positioning, the grindstone 52b is rotated, and the front / rear, up / down and left / right operations of the table 53 are performed by the forward / backward feed handle 55, the up / down feed handle 56, and the left / right feed handle 54. The gash 44c of the third blade edge 35c is finished by repeating the operation of making contact with and separating from the outer peripheral surface several times while being careful (see FIG. 11). It is desirable to stop the grindstone after this finishing to ensure safety.

  Thereafter, in the same manner as the gash 44c of the third blade edge 35c, the gash 44d of the blade edge 35d of the fourth blade and the gash 44a of the blade edge 35a of the first blade are finished in order to perform the gash grinding work of each blade. Complete.

  As described above, the gash grinding operation is performed so that all the blade edges are subjected to the gash grinding at the inclination angle of the standing angle selection table 9 and the inclination angle selection table 5 which are determined once. Gash has the advantage that it can be finished to a constant angle and depth.

  The angles described in the text are used as examples for ease of explanation, and can be arbitrarily determined by the user.

  FIG. 12 shows a state in which the milling machine 60 is used with the end mill cutting edge polishing jig 1 according to the embodiment of the present invention. In this use state, the end mill cutting edge polishing jig 1 according to the embodiment of the present invention is placed on the table 61 of the milling machine 60, and the small grinder 62 is fixed above the table 61 of the milling machine 60. It is used in the state. The milling machine 60 and the small grinder 62 are existing ones, but of course, it is possible to modify a new milling machine by attaching a newly prepared grinder or to provide a new milling machine with a grinder attached as an accessory set. The end mill cutting edge polishing jig 1 according to the embodiment of the present invention can be used.

  The present invention is not limited only to the above-described embodiments, and various modifications can be made in the design without departing from the spirit of the invention described in the claims of the present invention.

It is a front view which shows embodiment of this invention. It is also a plan view. It is a side view similarly. It is a front view which shows the state installed in the surface grinder. It is a front view which shows the state which inclined the stand for standing angle selection. It is a front view which shows the state which inclined the stand for elevation angle selection. It is a general-view figure of the bottom edge of a 4 blade end mill. It is sectional drawing which follows FIG. 7A-A line. It is sectional drawing which shows the contact state of a 2nd corner and a grindstone. It is sectional drawing which shows the contact state of a 3rd corner and a grindstone. It is sectional drawing which shows the contact state of a gouache and a grindstone. It is a front view which shows the state installed in the milling machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 End mill edge grinding tool according to embodiment 3 Stand member 4 Horizontal axis 5 Horizontal axis 6 Horizontal axis 6 Elevation angle selection base 7 Front and rear horizontal axis 8 Front and rear horizontal axis 9 Standing angle selection base 10 End mill holder DESCRIPTION OF SYMBOLS 11 Left side standing wall 12 Right side standing wall 13 Front side standing wall 14 Rear side standing wall 15 Front side fixing screw 16 Rear side fixing screw 17 Rear side fixing screw 18 End mill 19 Standing fixing hole 20 Column 21 Column 22 Standing fixing hole 23 Standing fixing hole 24 Left side fixing screw 25 Right side fixing screw 26 Leveling pin 27 Leveling pin 28 V-groove left half portion 29 Round hole right half portion 30 Upper side fixing screw 31 Lower side fixing screw 32 Fixing for anti-rotation Screw 33 Stabilizing screw 35a to 35d for preventing rotation 37 Cutting edge 37 Height determining ring 38 Wing screw 39 Horizontal hole 40 Slotted screw 42 Second angle 43 Third angle 44 Gerhard 46 angle scale 47 indication 50 surface grinder 51 grinder 52a, feeding 52b grindstone 53 Table 54 lateral feed wheel 55 back and forth the handle 56 vertical feed wheel 57 magnet chuck device 60 surface grinder 61 Table 62 Grinder

Claims (7)

Used to be fixed on the table of a machine tool such as a surface grinder, a milling machine and a horizontal milling machine with a table that can move left and right, move back and forth, and move up and down, and is placed on the table A base member, a vertical / elevation angle selection base supported on the base member, an upright angle selection base supported by the vertical / elevation angle selection base, and an end mill holding portion provided on the upright angle selection base An end mill cutting edge polishing jig, characterized by being configured. The base member has left and right upright walls on both left and right sides, the elevation / elevation angle selection base has front / rear side elevation walls on both front and rear sides, and the elevation / elevation angle selection base is on the left / right side of the base member. It is supported between the right-side standing walls so that one end thereof can swing up and down, and the elevation angle of the elevation / elevation angle selection table can be fixed at an arbitrarily selected angle by a fastening screw, The upright angle selection table is supported between the front and rear upright walls of the elevation / elevation angle selection table so that the upper end of the upright angle selection table can be swung left and right. 2. The end mill holding portion is provided with an end mill holding hole provided on an upper surface of the stand for selecting an upright angle. End mill edge tool. 3. The end mill blade edge polishing according to claim 2, wherein the end mill holding portion includes a support column erected beside the holding hole of the end mill and a leveling pin provided at an upper portion of the support column. Jigs. The end-milling fixing hole of the end mill is formed in a shape composed of a V-groove half portion and a round hole half portion, and a fixing screw of the end mill is provided on a side surface of the round hole half portion. The end mill cutting edge polishing jig according to claim 2, wherein: The end mill cutting edge polishing jig according to claim 2 or 3, wherein the leveling pin can be changed by adjusting a height of the support column. The lower end of the column is inserted into the holding hole, and a height determining ring is slidably fitted in the middle of the column. The height determining ring is fixed to an arbitrary height by a thumbscrew. 6. The length of the insertion ring is adjusted by selecting a height of the height determining ring, and the length inserted in the holding hole can be adjusted. End mill blade tip polishing jig. 6. The leveling pin is slidably inserted into a lateral hole drilled at the upper end of the support column, and the protruding amount of the tip can be determined by tightening a screw. The end mill cutting edge polishing jig described.

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