TWM456880U - Improved drill bit grinding machine - Google Patents

Description

Improvement of drill grinding machine

This creation is related to a drill grinder, and in particular to a drill grinder capable of grinding the cutting angle and the chip removal angle of the drill bit.

In order to allow the user to grind and repair the damaged drill bit through simple operation to extend the service life of the drill bit and achieve cost saving and environmental protection effects, the creator of the case completed a drill bit as shown in the first figure. The grinding machine mainly has a base 1 , and the base 1 is provided with a vertical plate 2 , and the base 1 is provided with a motor 3 , and the output shaft 4 of the motor 3 passes through the The vertical plate 2 is connected to a grinding wheel 5, and the base 1 is further provided with a knife-edge back grinding seat 6, and the first knife-removing seat 6 is provided with a first grinding hole 7 in the direction of the grinding wheel 5, and the same A vertical spot grinding seat 8 is further disposed on the vertical plate 2, and a second grinding hole 9 is formed in the center static spot grinding seat 8 so as to be used as shown in the fourth figure. As long as one of the drill bits 200 to be repaired and damaged is sequentially fixed to the first grinding hole 7 and the second grinding hole 9 , the cutting edge 202 and the blade back of the drill bit 200 can be respectively ground and polished through the grinding wheel 5 . 203 and center static point 204.

However, please refer to the second figure. Since the center static spot grinding seat 8 is disposed on the vertical plate 2, the user cannot freely adjust the angle of the center static spot grinding seat 8 relative to the grinding wheel 2, so that the angle The central axis c of the second grinding hole 9 can only be disposed parallel to the radial direction y of the second grinding wheel, resulting in the drill bit 200 repaired by the drill grinder having the following disadvantages:

1. Referring to the third figure, the drill bit 200 is ground and repaired using the drill grinder. The cutting edge 201 corresponds to the axial direction x of the parallel direction of the drill bit 200 of the chip flute 205, so that the cutting edge 201 will have a large cutting angle α, and a large resistance will be generated during cutting, thereby causing the bit 200 to be Short life, about 2 hours of life.

2. Referring to the fourth figure, the drill bit 200 is ground and repaired by the drill grinder, and the cutting angle β of the chip flute 205 can only be set at a right angle, which cannot be adjusted according to the processing requirements, so that the drill bit 200 can be used. In the case of drilling operations where waste is more likely to occur, it is prone to insufficient chip evacuation capability.

Therefore, after observing the above shortcomings, the creator of this case is adhering to the spirit of excellence, and believes that the existing drill grinding machine still needs further improvement, and there is no such creation.

The purpose of the present invention is to provide an improvement of a drill grinder which can be used for grinding and repairing a drill bit and reducing the cutting angle of the drill bit to reduce the cutting resistance of the drill bit during drilling, thereby greatly increasing the drill bit. Service life.

In order to achieve the above object, the improvement of the drill grinder provided by the present invention comprises: a base having a motor mounted thereon, and one end of the motor is provided with a first output shaft, the first output shaft Connected to a first grinding wheel, and the other end of the motor is provided with a second output shaft, the second output shaft is coupled with a second grinding wheel, the radial direction of the second grinding wheel is perpendicular to the second output shaft; and a cutting edge a back grinding unit is disposed on the base adjacent to the first grinding wheel, and the knife back grinding unit has a first fixing seat, and the first fixing seat is provided with a through hole in a direction of the first grinding wheel. The puncturing member is pivotally provided with an eccentric member, and the eccentric member is eccentrically disposed with a first grinding hole toward the first grinding wheel; a first central static spot grinding unit disposed on the base adjacent to the second grinding wheel, and the first central static spot grinding unit has a second fixing seat, the second fixing seat is attached thereto The second grinding wheel is bored with a second grinding hole, and the central axis of the second grinding hole has an angle with the radial direction of the second grinding wheel.

The improvement of the drill grinder provided by the present invention, the user can pass through the first grinding wheel and the second grinding wheel as long as the drill bit to be ground and fixed is fixedly fixed to the first grinding hole and the second grinding hole. Grinding the cutting edge, the blade back and the center static point of the drill bit to repair the drill bit, wherein the drill bit is clamped between the central axis of the second grinding hole and the radial direction of the second grinding wheel, After the grinding is completed, the cutting angle of the drill bit can be reduced, and the cutting resistance of the drill bit during drilling can be reduced, thereby greatly increasing the service life of the drill bit.

Please refer to the fifth, sixth, seventh and eighth figures, which are perspective views of the first preferred embodiment of the present invention, a top view of the first central static spot grinding unit, and a knife back grinding unit. An exploded view and an exploded view of the first central static spot grinding unit, which discloses an improved 100 of a drill grinder, the modified 100 of the drill grinder mainly comprising: a base 10 on which a first portion is disposed a vertical plate 11 and a second vertical plate 12, and a motor 13 is disposed between the first vertical plate 11 and the second vertical plate 12, and one end of the motor 13 is provided with a first output shaft 131, the first The output shaft 131 passes through the first vertical plate 11 and is connected with a first grinding wheel 14, and the other end of the motor 13 is provided with a second output shaft 132, and the second output shaft 132 passes through the second vertical plate. 12 and connected with a second grinding wheel 15, and the radial direction y of the second grinding wheel 15 is perpendicular to the second output shaft 132.

a knife-edge back grinding unit 20 is disposed on the base 10 adjacent to the first grinding wheel 14, and the knife-edge back grinding unit 20 has a base 21 disposed on the base 10, and the base 21 is attached A first fixing seat 22 is pivotally disposed on the first fixing base 22, and a first arcing groove 221 is defined in the first fixing base 22, and is locked to the base 21 through the first arcing hole 221 to limit the first a pivoting angle of the fixing seat 22, the first fixing seat 22 is provided with a through hole 222 in the direction of the first grinding wheel 14, and a plurality of first limiting holes 223 are disposed adjacent to the through hole 222. A first limiting pin 24 is inserted into the at least one first limiting hole 223, and an eccentric member 25 is pivotally disposed in the through hole 222, and the eccentric member 25 is eccentrically worn toward the first grinding wheel 14. The first eccentric member 24 is provided with a limiting plane 252, and the eccentric member 25 is provided with a stopping portion adjacent to the first grinding hole 251. 253.

a first central static spot grinding unit 30 is disposed on the base 10 adjacent to the second grinding wheel 15 , and the first central static spot grinding unit 30 has an adjustment platform disposed on the base 10 31. A second fixing base 32 is vertically pivoted on the adjusting platform 31, so that the second fixing base 32 can be pivoted on the adjusting platform 31 to further pivot relative to the base 10, and the second A second arc slot 321 is further disposed on the fixing base 32, and is locked to the adjusting base 31 through the second arcing slot 321 through a second bolt 33 to limit the pivoting angle of the second fixing base 32. A second grinding hole 322 is further disposed on the second fixing base 32 in the direction of the second grinding wheel 15, and a central axis c of the second grinding hole 322 is at an angle with a radial y of the second grinding wheel 15 θ, in the embodiment, the angle θ can be adjusted according to the pivoting of the second fixing base 32, and the second fixing base 32 is adjacent to the second research A plurality of second limiting holes 323 are defined in the grinding holes 322 , and a second limiting pin 34 is inserted into the at least one second limiting hole 323 .

In order to further understand the characteristics of this creation, the use of technical means and the expected results, we will use the way of this creation to describe, and believe that we can have a deeper and more specific understanding of this creation, as follows: Please Referring to FIG. 9 , it is a schematic view of the use of the knife-edge back grinding unit of the first preferred embodiment of the present invention. The user only needs to fix a drill bit 200 to be ground and repaired in a chuck nut 300 and perform The blade is positioned, and then the collet nut 300 is directly inserted into the first grinding hole 251, and the position of the collet nut 300 is fixed by the stopping portion 253, and finally the collet nut 300 is rotated. The rivet member 300 is rotated in the through hole 222 to repair the knife edge 202 and the blade back 203 of the drill bit 200 by grinding the first grinding wheel 14 by using a circular arc grinding method. The structure of the collet nut 300, the manner in which the blade is positioned, and the arc grinding method are conventional techniques, and therefore will not be described again.

Please refer to the tenth figure at the same time, which is a schematic diagram of the use of the first central static spot grinding unit of the first preferred embodiment of the present invention. When the user finishes the cutting edge 202 of the drill bit 200 and the blade back 203, the user wants to continue When the center dead spot 204 of the drill bit 200 is polished, the user only needs to take the collet nut 300 out of the first grinding hole 251, and then insert the second grinding hole 322 into the second grinding hole 322 and pass the second limit. The position pin 34 fixes the position of the collet nut 300, and the center dead spot 204 of the drill bit 200 can be ground through the second grinding wheel 15, and the drill bit 200 can be completely repaired.

It is worth mentioning that please also refer to Figure 11 as the first comparison of this creation. In the side view of the drill bit of the preferred embodiment, since the first central static spot grinding unit 30 is independently disposed on the base 10 adjacent to the second grinding wheel 15, the second fixing base 32 will not have an angle limitation. Therefore, the central axis c of the second grinding hole 322 can be clamped with the radial angle y of the second grinding wheel 15 to allow the cutting edge 200 of the drill bit 200 to correspond to the chip ditch. The side p of the 205 is deflected relative to the axial direction x of the drill bit 200, that is, the cutting angle α of the drill bit 200 can be reduced to reduce the cutting resistance of the drill bit 200 during drilling, thereby greatly increasing the service life of the drill bit 200. According to the test result, the life of the drill bit 200 can be increased to about 4 hours, and at the same time, because the second fixing base 32 is pivotally disposed on the adjustment table 31, the user can rotate the second fixing base 32. The angle θ is adjusted to further adjust the cutting angle α.

It is worth mentioning that, as shown in FIG. 12, it is a top view of the drill bit of the first preferred embodiment of the present invention, since the second fixing base 32 is adjacent to the second grinding hole 322. There are a plurality of second limiting holes 323. Therefore, the user can adjust the insertion position of the second limiting pin 34 to adjust the second positioning pin 34 to the second grinding hole. The inner edge of the drill bit 200 is pivoted toward the second grinding wheel 15 to increase the chip discharge angle β of the drill bit 200, thereby achieving the effect of improving the chip removal capability of the drill bit 200.

Please refer to FIG. 13 again, which is a perspective view of a second preferred embodiment of the present invention. The improvement of the drill grinder differs from the first preferred embodiment described above in that it further includes a first The second center static spot grinding unit 40 has a third fixing base 41, and the third fixing base 41 is pivotally disposed at the top end of the first vertical plate 11, and the third fixing base 41 is attached thereto. The first grinding wheel 14 is provided with a third grinding hole 411, and A plurality of third limiting holes 412 are disposed on the third fixing hole 41 adjacent to the third grinding hole 411, and a third limiting pin 42 is inserted into the at least one third limiting hole 412, thereby The present invention is capable of grinding and repairing the drill bit 200 directly through the second center static spot grinding unit 40 for the drill bit 200 that does not require adjustment of the cutting angle α and the chip removal angle β.

Hereby, the characteristics of this creation and its achievable expected effects are stated as follows:

1. The improvement of the bit grinding machine of the present invention, the user can pass through the first grinding wheel and the second grinding wheel as long as the drill bit to be ground and fixed is fixedly fixed to the first grinding hole and the second grinding hole. Grinding the cutting edge, the blade back and the center static point of the drill bit to repair the drill bit, wherein the drill bit is clamped between the central axis of the second grinding hole and the radial direction of the second grinding wheel, After the grinding is completed, the cutting angle of the drill bit can be reduced, and the cutting resistance of the drill bit during drilling can be reduced, thereby greatly increasing the service life of the drill bit.

2. The improvement of the bit grinding machine of the present invention, since the second fixing hole is provided with a plurality of second limiting holes adjacent to the second grinding hole, the user can adjust the second limit pin by adjusting The insertion position is such that the drill bit pivots with the adjustment of the second limit pin in the second grinding hole, and the cutting edge of the drill bit is adjusted to be close to the second grinding wheel to increase the chip removal angle of the drill bit, thereby further The effect of improving the chip removal ability of the drill bit is achieved.

In summary, this creation has its excellent progress and practicality in similar products. At the same time, it has investigated the technical information about such structures at home and abroad. The same structure has not been found in the literature. This creation has already possessed new types of patent requirements, and applied for it according to law.

However, the above-mentioned ones are only one of the preferred embodiments of the present invention, so the equivalent structural changes that apply to the scope of the present application and the scope of the patent application should be included in Within the scope of this creation's patent.

1‧‧‧Base

2‧‧‧ 立板

3‧‧‧Motor

4‧‧‧Output shaft

5‧‧‧ grinding wheel

6‧‧‧Knife knife back grinding seat

7‧‧‧First grinding hole

8‧‧‧Center static spot grinding seat

9‧‧‧Second grinding hole

100‧‧‧Improvement of drill grinding machine

10‧‧‧ Pedestal

11‧‧‧First vertical board

12‧‧‧Second board

13‧‧‧Motor

131‧‧‧First output shaft

132‧‧‧Second output shaft

14‧‧‧First grinding wheel

15‧‧‧Second grinding wheel

20‧‧‧Knife back grinding unit

21‧‧‧Base

22‧‧‧First mount

221‧‧‧First arc slot

222‧‧‧Perforation

223‧‧‧First limit hole

23‧‧‧First bolt

24‧‧‧First limit pin

25‧‧‧Eccentric parts

251‧‧‧First grinding hole

252‧‧‧Limited plane

253‧‧‧stops

30‧‧‧First central static grinding unit

31‧‧‧ adjustment station

32‧‧‧Second fixed seat

321‧‧‧second arc slot

322‧‧‧Second grinding hole

323‧‧‧Second limit hole

33‧‧‧Second bolt

34‧‧‧Second limit pin

40‧‧‧Second central static grinding unit

41‧‧‧ third mount

411‧‧‧ third grinding hole

412‧‧‧ third limit hole

42‧‧‧ third limit pin

200‧‧‧ drill bit

201‧‧‧blade

202‧‧‧ knife mouth

203‧‧‧ knife back

204‧‧‧ center point

205‧‧‧Ditching

300‧‧‧ collet nut

x‧‧‧Axial

Y‧‧‧radial

c‧‧‧Center axis

‧‧‧‧Cutting angle

Β‧‧‧ Chip shaving angle

Θ‧‧‧ angle

P‧‧‧ side

The first figure is a perspective view of a conventional drill grinder.

The second figure is a side view of a conventional drill grinder.

The third figure is a side view of a conventional drill bit.

The fourth figure is a top view of a conventional drill bit.

The fifth drawing is a perspective view of the first preferred embodiment of the present creation.

Figure 6 is a plan view of the first central static spot grinding unit of the first preferred embodiment of the present invention.

Figure 7 is an exploded view of the knife back grinding unit of the first preferred embodiment of the present invention.

The eighth drawing is an exploded view of the first central static spot grinding unit of the first preferred embodiment of the present invention.

The ninth drawing is a schematic view showing the use of the knife-edge back grinding unit of the first preferred embodiment of the present invention.

The tenth figure is a schematic view showing the use of the first central static spot grinding unit of the first preferred embodiment of the present invention.

The eleventh drawing is a side view of the drill bit of the first preferred embodiment of the present invention.

Figure 12 is a plan view of the drill bit of the first preferred embodiment of the present invention.

Figure 13 is a perspective view of a second preferred embodiment of the present invention.

100‧‧‧Improvement of drill grinding machine

10‧‧‧ Pedestal

11‧‧‧First vertical board

12‧‧‧Second board

13‧‧‧Motor

131‧‧‧First output shaft

132‧‧‧Second output shaft

14‧‧‧First grinding wheel

15‧‧‧Second grinding wheel

20‧‧‧Knife back grinding unit

21‧‧‧Base

22‧‧‧First mount

23‧‧‧First bolt

24‧‧‧First limit pin

25‧‧‧Eccentric parts

251‧‧‧First grinding hole

30‧‧‧First central static grinding unit

31‧‧‧ adjustment station

32‧‧‧Second fixed seat

322‧‧‧Second grinding hole

33‧‧‧Second bolt

34‧‧‧Second limit pin

Claims (10)

An improvement of a drill grinder includes: a base having a motor mounted thereon, and one end of the motor is provided with a first output shaft, the first output shaft is coupled to a first grinding wheel, and the motor The other end is provided with a second output shaft, the second output shaft is connected with a second grinding wheel, the radial direction of the second grinding wheel is perpendicular to the second output shaft; and a knife-edge back grinding unit is disposed on the base The pedestal is provided with a first fixing seat, and the first fixing seat is provided with a through hole in a direction of the first grinding wheel, and an eccentric member is pivotally disposed on the first fixing seat. a first grinding hole is disposed on the eccentric member eccentrically toward the first grinding wheel; a first central static spot grinding unit is disposed on the base adjacent to the second grinding wheel, and the first center is static The point grinding unit has a second fixing seat, and the second fixing seat is provided with a second grinding hole toward the second grinding wheel, and the central axis of the second grinding hole is radially sandwiched by the second grinding wheel There is an angle. The improvement of the drill grinder of claim 1, wherein the second mount is pivotable relative to the base to adjust the angle of the angle. The improvement of the drill grinder according to claim 2, wherein the first central static spot grinding unit further has an adjusting platform, the adjusting platform is disposed on the base, and the adjusting platform is The second fixing seat is vertically pivoted so that the second fixing seat can pivot on the adjusting table to further pivot relative to the base. The improvement of the drill grinder according to claim 3, wherein the second fixing seat is provided with a second arc groove and passes through a second bolt through the second arc groove. The lock is arranged on the adjustment platform to limit the pivoting angle of the second fixing seat. The improvement of the drill grinder according to the first aspect of the invention, wherein the second fixing seat is provided with a plurality of second limiting holes adjacent to the second grinding hole, and at least a second limit A second limit pin is inserted into the hole. The improvement of the bit grinding machine according to the first aspect of the invention, wherein the blade back grinding unit further has a base, the base is disposed on the base, and the base is pivotally provided with the first The first fixing seat is further provided with a first arc groove, and is locked to the base through a first bolt through the first arc slot for limiting the pivoting angle of the first fixing seat. The improvement of the drill grinder according to claim 1, wherein the first fixing seat is provided with a plurality of first limiting holes adjacent to the through hole, and is inserted into the at least one first limiting hole. There is a first limit pin, and the eccentric member has a limit plane corresponding to the first limit pin. The improvement of the drill grinder according to the first aspect of the invention, wherein the eccentric member is provided with a stop portion adjacent to the first grinding hole. The improvement of the drill grinder according to claim 1, wherein the base is oppositely disposed with a first vertical plate and a second vertical plate, and the first vertical plate and the second vertical plate are disposed. The motor is provided with a first output shaft passing through the first vertical plate and connected to the first grinding wheel, and a second output shaft of the motor passes through the second vertical plate and is connected to the first Two grinding wheels. The improvement of the drill grinder according to claim 9 , further comprising a second central static spot grinding unit having a third fixing base. And the third fixing seat is pivotally disposed at a top end of the first vertical plate, and the third fixing seat is provided with a third grinding hole toward the first grinding wheel, and the third fixing seat is adjacent to the third fixing seat The third grinding hole is provided with a plurality of third limiting holes, and a third limiting pin is inserted into the at least one third limiting hole.