CN215547248U

CN215547248U - Drill bit grinding device

Info

Publication number: CN215547248U
Application number: CN202121109158.4U
Authority: CN
Inventors: 黄良华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-21
Filing date: 2021-05-21
Publication date: 2022-01-18
Anticipated expiration: 2031-05-21

Abstract

The utility model discloses a drill bit grinding device which comprises a base, a grinding wheel, an angle grinding sleeve rod and a drill bit sleeve for fixing a drill bit, wherein the grinding wheel is rotatably arranged on the base; the cross section of the angle grinding loop bar is circular, one end of the angle grinding loop bar is fixedly connected to the machine base, and the drill bit sleeve is connected to the angle grinding loop bar in a sleeved mode. Compared with the prior art, the angle grinder has the advantages that the drill sleeve capable of moving on the angle grinding sleeve rod is arranged, and the angle grinder has the advantages of being simple in structure and good in grinding effect.

Description

Drill bit grinding device

Technical Field

The utility model relates to the field, in particular to a drill bit grinding device.

Background

Along with the progress of society and market demands, people have higher and higher requirements on a grinding drill device, the grinding drill device has the advantages of high cost, complex structure and poor grinding effect of a ground drill bit and a ground cutter although the grinding drill bit device in the market has the advantages of high cost, low cost and simple structure.

In view of the above, the present inventors have made extensive studies on the above-mentioned drawbacks of the prior art, and have made this invention.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a drill bit grinding device which has the characteristics of simple structure and good grinding effect.

In order to achieve the above purpose, the solution of the utility model is:

a drill bit grinding device comprises a base, a grinding wheel, a grinding angle sleeve rod and a drill bit sleeve for fixing a drill bit, wherein the grinding wheel is rotatably arranged on the base; the cross section of the angle grinding loop bar is circular, one end of the angle grinding loop bar is fixedly connected to the machine base, and the drill bit sleeve is connected to the angle grinding loop bar in a sleeved mode.

Further, a sleeve is formed on the drill bit sleeve, and the angle grinding sleeve rod is inserted into the sleeve.

Furthermore, the drill bit sleeve is provided with two small V-shaped grooves and a large V-shaped groove which are different in size.

Furthermore, a clamping block is further arranged on the drill bit sleeve, a first hand-screwed screw is arranged on the clamping block, and a pressing block is arranged at the lower end of the first hand-screwed screw; the lower surface of the pressing block is provided with a V-shaped opening.

Furthermore, the drill bit sleeve is connected with an angle aligning block, pin grooves are formed in two ends of the drill bit sleeve, a pin rod is arranged on one side of the angle aligning block, and the pin rod can be inserted into the pin grooves; the angle aligning block is provided with a V-shaped drill bit edge for correcting the angle of the drill bit grinding external angle.

Further, the base is provided with an outer cover, the upper end of the outer cover is provided with a left sharpening oblique edge and a right sharpening oblique edge, and the left sharpening oblique edge, the right sharpening oblique edge and the grinding wheel form a V-shaped opening for a tool sharpening edge.

Further, the drill bit grinding device further comprises a transmission rod for driving the grinding wheel, and the transmission rod is connected with driving power.

Further, grind drill bit device still including grinding the interior angle lift pipe and be used for grinding the interior angle loop bar fixed with the drill bit, it is formed with the turn rod to grind interior angle loop bar one end, the turn rod slides and sets up grind in the interior angle lift pipe, be provided with screw hole and second hand screw on the turn rod, it is provided with the scale mark on the interior angle lift pipe to grind.

Further, a left grinding wheel and a right grinding wheel are arranged on the machine base, a butt grinding drill angle is formed between the left grinding wheel and the right grinding wheel, the left grinding wheel is connected with a left gear, the right grinding wheel is connected with a right gear, and the left gear is in meshed connection with the right gear.

Further, the left grinding wheel and the right grinding wheel are staggered and inclined at an angle consistent with the external angle of the drill bit.

After adopting the structure, the drill bit grinding device provided by the utility model at least has the following beneficial effects:

the drill bit is fixedly arranged on the drill bit sleeve, the drill bit sleeve is arranged on the angle grinding sleeve rod, a user can drive the drill bit sleeve to enable the drill bit on the drill bit sleeve to be abutted to the grinding wheel, and therefore the grinding operation is completed.

And the drill bit sleeve is provided with a small V-shaped groove and a large V-shaped groove which are different in size, the small V-shaped groove can be used for placing a bit of drill bit, the large V-shaped groove can be used for placing a bit of drill bit, the center of gravity of the drill bit is not easy to move, and a better fixing effect is achieved.

And thirdly, the drill bit is pressed on the V-shaped groove through the clamping block, the pressing block moves downwards through screwing the first hand-screwed screw, so that the drill bit is pressed, and the V-shaped opening in the pressing block plays a role in keeping the drill bit stable. Instead of using the clamping and pressing blocks, the drill can also be pressed directly into the V-groove by hand.

And fourthly, the angle block which can be inserted into the pin slot is arranged, the angle of the drill bit grinding outer angle can be corrected by the V-shaped angle block, and the angle block can be detached after the correction is finished.

And fifthly, the two grinding wheels are arranged to rotate simultaneously so as to grind the outer corners on the two sides of the drill bit at one time, so that the consistency of the outer corners on the two sides is ensured, the processing efficiency is improved, and the processing quality is ensured.

Compared with the prior art, the angle grinder has the advantages that the drill sleeve capable of moving on the angle grinding sleeve rod is arranged, and the angle grinder has the advantages of being simple in structure and good in grinding effect.

Drawings

Fig. 1 is a schematic perspective view of a drill bit grinding device according to the present invention.

Fig. 2 is a schematic view of a structure of a fillet grinding inner corner.

FIG. 3 is a schematic view of the bit holder configuration.

Fig. 4 is a schematic structural diagram of the angle block.

Fig. 5 is a perspective view of the present invention with left and right grinding wheels.

In the figure:

a base 11; an outer cover 112; a grinding wheel 113; a drive link 114; a left burr bevel 115; a right sharpening edge 121; an opening 122; angle grinding loop bar 123; a bump 124;

grinding an inner angle sleeve rod 125; a turning lever 126; an internal angle grinding elevator tube 127; a second thumb screw 129; scale markings 128;

a bit case 13; small V-shaped grooves 131; a large V-shaped groove 132; a sleeve 133; a clamping block 134; a briquetting 135; a V-shaped port 136; a first thumb screw 137; pin slots 138;

for the angle block 14; a pin rod 141; a pair of bit edges 142;

a left grinding wheel 221; a right grinding wheel 222; a left gear 223; a right gear 224; and (3) grinding the drilling angle.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

As shown in fig. 1 to 5, the drill bit grinding device according to the present invention includes a base 11, a grinding wheel 133, a grinding angle sleeve 123 and a bit sleeve 13 for fixing a drill bit, wherein the grinding wheel 133 is rotatably disposed on the base 11; the cross section of the angle grinding sleeve rod 123 is circular, one end of the angle grinding sleeve rod 123 is fixedly connected to the machine base 11, and the drill bit sleeve 13 is connected to the angle grinding sleeve rod 123 in a sleeved mode and can move a drill bit to be ground on the drill bit sleeve 13 towards the direction of a grinding wheel. Thus, according to the drill bit grinding device provided by the utility model, the drill bit is fixedly arranged on the drill bit sleeve 13, the drill bit sleeve 13 is arranged on the angle grinding sleeve rod 123, and a user can push the drill bit on the drill bit sleeve 13 to the grinding wheel 133 by driving the drill bit sleeve 13, so that the grinding operation is completed, and the drill bit grinding device has the characteristics of simple structure and convenience in operation.

Preferably, a sleeve 133 is formed on the bit housing 13, and the angle grinding sleeve rod 123 is inserted into the sleeve 133. The sleeve is provided with an inner cavity hole which is matched with the outer diameter of the angle grinding sleeve rod 123 in the radial direction; furthermore, the bit holder 13 can also be rotated slightly by the grinding angle. Furthermore, the angle grinding sleeve rod 123 is provided with a convex point 124.

Preferably, the bit housing 13 is provided with two small V-shaped grooves 131 and a large V-shaped groove 132 having different sizes. The drill bit sleeve 13 is provided with small V-shaped grooves 131 and large V-shaped grooves 132 which are different in size, the small V-shaped grooves 131 can be used for placing small drill bits, the large V-shaped grooves 132 can be used for placing small drill bits, the drill bits are not prone to moving the center of gravity, and a better fixing effect is achieved.

Preferably, the bit holder 13 is further provided with a clamping block 134, a first hand-screwed screw 137 is arranged on the clamping block 134, and a pressing block 135 is arranged at the lower end of the first hand-screwed screw 137; the lower surface of the pressing block 135 is provided with a V-shaped port 136. The drill bit is pressed on the V-shaped groove by arranging the clamping block 134, the pressing block 135 is moved downwards by screwing the first hand screw 137, so that the drill bit is pressed, and the V-shaped opening 136 on the pressing block 135 plays a role in keeping the drill bit stable. Instead of using the clamping block 134 and the pressure block 135, the drill can also be pressed directly into the V-groove by hand.

Preferably, the bit holder 13 is connected to a pair of angle blocks 14, pin grooves 138 are formed at both ends of the bit holder 13, a pin 141 is formed at one side of the pair of angle blocks 14, and the pin 141 can be inserted into the pin grooves 138; the angle block 14 is provided with a V-shaped bit-aligning blade 142 for angle correction of the bit grinding outer angle. By providing an angle alignment block 14 that can be inserted into the pin slot 138; the V-shaped pair of drill bit edges 142 on the angle block 14 can correct the angle of the grinding outer angle of the drill bit through the contact of the drill tip of the drill bit and the pair of drill bit edges 142, and the angle block 14 can be detached after the correction is finished.

Preferably, an outer cover 112 is arranged on the base 11, a left sharpening oblique edge 115 and a right sharpening oblique edge 121 are arranged at the upper end of the outer cover 112, and the left sharpening oblique edge 115 and the right sharpening oblique edge 121 and a grinding wheel form a V-shaped opening 136 for a tool sharpening. Therefore, the utility model can also be used for grinding other tools, and the tools can be pulled over to be sharpened when grinding edges. Further, the left side of the outer cover 112 is provided with an opening 122 so that the grinding angle of the drill is ground by contact with the grinding wheel.

Preferably, the drill bit grinding device further comprises a transmission rod 114 for driving the grinding wheel, and the transmission rod 114 is connected with a driving power. One end of the transmission rod 114 can be connected with a motor for transmission or can be connected with a hand electric drill for rotation.

Preferably, grind drill bit device still includes and grinds interior angle lift pipe 127 and be used for with the fixed interior angle loop bar 125 of grinding of drill bit, grind interior angle loop bar 125 one end and be formed with turn pole 126, turn pole 126 slides and sets up grind in interior angle lift pipe 127, be provided with screw hole and second hand screw 129 on the turn pole 126, be provided with scale mark 128 on the interior angle lift pipe 127 of grinding. The drill bit is attached and fixed on an internal angle grinding sleeve rod 125, the internal angle grinding lifting pipe 127 is a square pipe, and is further provided with scale marks 128 so as to move up and down to align with the edge of the grinding wheel when the internal angle of the drill bit is ground. The second thumb screw 129 can also be tightened during grinding, and the turnabout bar 126 is fixed at a certain height.

Preferably, a left grinding wheel 221 and a right grinding wheel 222 are arranged on the machine base 11, the left grinding wheel 221 and the right grinding wheel 222 form a counter grinding angle 3, the left grinding wheel 221 is connected with a left gear 223, the right grinding wheel 222 is connected with a right gear 224, and the left gear 223 and the right gear 224 are in meshed connection. Further, the left grinding wheel 221 and the right grinding wheel 222 are staggered by an angle corresponding to the external angle of the drill. The two grinding wheels are arranged to rotate simultaneously so as to grind the outer corners on two sides of the drill bit at one time, the consistency of the outer corners on two sides is guaranteed, the machining efficiency is improved, and the machining quality is guaranteed.

Compared with the prior art, the utility model has the characteristics of simple structure and good polishing effect by arranging the drill sleeve 13 which can be moved on the angle polishing sleeve rod 123.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. A drill bit grinding device is characterized by comprising a base, a grinding wheel, a grinding angle sleeve rod and a drill bit sleeve for fixing a drill bit, wherein the grinding wheel is rotatably arranged on the base; the cross section of the angle grinding loop bar is circular, one end of the angle grinding loop bar is fixedly connected to the machine base, and the drill bit sleeve is connected to the angle grinding loop bar in a sleeved mode.

2. A drill bit sharpening apparatus as defined in claim 1, wherein said drill bit casing is formed with a sleeve into which said angle sharpening sleeve rod is inserted.

3. A drill bit sharpening device as defined in claim 1, wherein said drill bit case is provided with two small V-grooves and large V-grooves of different sizes.

4. The drill bit sharpening device as recited in claim 3, wherein said drill bit casing is further provided with a clamping block, said clamping block is provided with a first hand screw thereon, and a pressing block is provided at a lower end of said first hand screw; the lower surface of the pressing block is provided with a V-shaped opening.

5. The drill bit sharpening device as defined in claim 1, wherein the drill bit sleeve is connected with angle aligning blocks, pin grooves are formed at both ends of the drill bit sleeve, and a pin rod is formed at one side of the angle aligning blocks and can be inserted into the pin grooves; the angle aligning block is provided with a V-shaped drill bit edge for correcting the angle of the drill bit grinding external angle.

6. The drill bit sharpening device of claim 1, wherein the base is provided with an outer cover, the upper end of the outer cover is provided with a left burr bevel edge and a right burr bevel edge, and the left burr bevel edge and the right burr bevel edge and the grinding wheel form a V-shaped opening for a sharpening edge of a tool.

7. A drill bit sharpening assembly according to claim 1, further comprising a drive rod for driving the grinding wheel, the drive rod having drive power coupled thereto.

8. The drill bit grinding device of claim 1, further comprising an inner angle grinding lifting pipe and an inner angle grinding sleeve rod for fixing with a drill bit, wherein a turning rod is formed at one end of the inner angle grinding sleeve rod and is slidably disposed in the inner angle grinding lifting pipe, a screw hole and a second hand screw are disposed on the turning rod, and a scale mark is disposed on the inner angle grinding lifting pipe.

9. The drill bit grinding device as claimed in claim 1, wherein the base is provided with a left grinding wheel and a right grinding wheel, the left grinding wheel and the right grinding wheel form a butt grinding angle, the left grinding wheel is connected with a left gear, the right grinding wheel is connected with a right gear, and the left gear and the right gear are meshed and connected.

10. A drill bit sharpening apparatus as recited in claim 9, wherein said left and right grinding wheels are skewed at an angle corresponding to the exterior angle of the drill bit.