CN215468357U - Tool bit of groover - Google Patents

Abstract

The utility model discloses a groover bit, comprising: a handle; the drill bit body is detachably arranged at the bottom of the handle; the two limiting blocks are respectively arranged at the top ends of the left side and the right side of the handle part; the water spraying hole is formed in the bottom of the drill bit body; the water delivery pipe is arranged at the bottom end of the handle part from top to bottom and is communicated with the water spray holes; the cutting mechanism is arranged on the side wall of the drill bit body; the clamping mechanism is arranged at the bottom end of the handle part and connected with the top end of the drill bit body. This groover tool bit can feed by vertical direction, need not to drill in advance, has improved grooved efficiency greatly to can change the drill bit body after knife tip or cutting edge fracture or wearing and tearing, the change process is simple, labour saving and time saving.

Description

Tool bit of groover

Technical Field

The utility model relates to the technical field of groover, in particular to a cutter head of a groover.

Background

In the processing process of the parts, the surfaces of the parts need to be grooved, and because the cutting edge of the tool bit of the groover is positioned on the side surface, the vertical feeding cannot be borne, so that the groover firstly needs to drill the grooving position of the parts, and the tool bit of the groover is deep into the hole, the tool bit rotating at high speed drives the cutting edge on the side surface to perform grooving from the inner side wall of the hole, and the grooving of the parts is realized;

the existing groover cutter head cannot bear feeding in the vertical direction, needs to drill in advance, is low in working efficiency, and can only be integrally replaced after a cutter point or a cutting edge at the bottom is broken or worn due to the fact that a cutting part of the drill main body is fixedly connected with a handle part, and the drill main body cannot be detached and replaced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a groover cutter head, which at least solves the problems that the prior art cannot feed in the vertical direction and a drill body cannot be replaced.

In order to achieve the purpose, the utility model provides the following technical scheme: a groover bit comprising: a handle; the drill bit body is detachably arranged at the bottom of the handle; the two limiting blocks are respectively arranged at the top ends of the left side and the right side of the handle part; the water spraying hole is formed in the bottom of the drill bit body; the water delivery pipe is arranged at the bottom end of the handle part from top to bottom and is communicated with the water spray holes; the cutting mechanism is arranged on the side wall of the drill bit body; the clamping mechanism is arranged at the bottom end of the handle part and is connected with the top end of the drill bit body;

the cutting mechanism includes: the number of the side cutting assemblies is a plurality, and the side cutting assemblies are respectively arranged on the side wall of the drill bit body along the circumferential direction; the bottom cutting assemblies are arranged at the bottoms of the side cutting assemblies respectively; the communication grooves are formed in the outer side of the bottom of the drill bit body in the circumferential direction and are located in the middle between two adjacent bottom cutting assemblies; the chip grooves are a plurality of and are respectively arranged at the bottom end of the side wall of the handle part along the circumferential direction and correspond to the positions of the lateral cutting assemblies.

Preferably, the side cutting assembly comprises: the spiral grooves of the plurality of side cutting assemblies are respectively arranged on the side wall of the drill bit body along the circumferential direction, the spiral grooves are respectively communicated with the chip discharge grooves, and the communication grooves are respectively arranged in the middle of the bottom of the spiral grooves from the outer side to the inner side; the spiral blade is arranged at the outer edge of one side of the spiral groove; and the rear furrow edge is arranged on the other side of the spiral groove.

Preferably, supreme anticlockwise setting that is all followed to chip groove and helicla flute, the chip groove is the same with the pitch of helicla flute, just the spiral blade is located anticlockwise one side in the helicla flute inner chamber.

Preferably, the bottom cutting assembly comprises: the rake face is arranged at the bottom end of the anticlockwise side of the spiral groove and is connected with the spiral blade; the cutting convex rib is arranged at the top end of the rake face; the rear cutter face is arranged at the bottom of the front cutter face; the main cutting edge is arranged at the intersection of the front cutter face and the rear cutter face and is arranged from the outer side to the inner side; and the tool nose is arranged at the intersection of the spiral blade and the main cutting blade.

Preferably, the relief surface is inclined gradually upwardly in a direction away from the main cutting edge.

Preferably, the clamping mechanism includes: a positioning tube disposed at a bottom end of the handle portion; the positioning hole is formed in the top end of the drill bit body, and the positioning pipe is in adaptive insertion connection with the positioning hole; the clamping blocks are arranged at the bottom end of the side wall of the positioning pipe in the circumferential direction; the number of the slots is a plurality, and the slots are respectively arranged on the side wall of the inner cavity of the positioning hole along the circumferential direction; the clamping grooves are a plurality of and are respectively arranged on one side of the bottom of the slot clockwise.

Preferably, a chamfer is arranged at the joint of the top of the clamping groove and the slot.

Compared with the prior art, the utility model has the beneficial effects that: the main shaft of the external groover drives the groover head to rotate, so that the bottom of the drill body is in contact with the surface of a part and is fed downwards, the main cutting edge rotates at high speed to cut, cutting chips generated by cutting are extruded by the front cutter face and the cutting bead to be twisted upwards and are cut after being in contact with the spiral groove, secondary cutting is avoided, the cutting chips are fed downwards for a certain distance to finish downward cutting, then the groover drives the rotating handle to feed towards the grooving direction, the spiral blade cuts the side wall of the groove, the cutting chips generated by cutting with the spiral blade rotating at high speed gradually increase and break after being released from the rear groove bead, so that the cutting effect is achieved, secondary cutting is avoided, and grooving is finished; carry out the joint through the joint groove to the fixture block, when the stalk portion drives the drill bit body rotatory, under the effect of cutting resistance, make the only embedded inner wall in joint groove of fixture block, thereby prevent that the drill bit body from dropping, when main cutting edge, spiral sword or knife tip take place wearing and tearing or damage the back, the drill bit body of opposite direction rotation makes the fixture block slide along the joint groove, it is relative until the position of fixture block and slot, thereby can take off the drill bit body and change, therefore, can feed by vertical direction, need not to drill in advance, grooved efficiency has been improved greatly, and can change the drill bit body after knife tip or cutting edge fracture or wearing and tearing, the change process is simple, time saving and labor saving.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a front sectional view of the present invention;

FIG. 4 is a schematic view of a handle structure;

FIG. 5 is a schematic view of the bottom structure of the drill body;

FIG. 6 is a schematic top view of the drill body.

In the figure: 2. the drill comprises a handle part, 3, a drill body, 4, a limiting block, 5, a water spray hole, 6, a water delivery pipe, 7, a cutting mechanism, 71, a side cutting assembly, 711, a spiral groove, 712, a spiral blade, 713, a rear furrow edge, 72, a bottom cutting assembly, 721, a main cutting edge, 722, a tool nose, 723, a rake face, 724, a rear tool face, 725, a cutting ridge, 73, a communication groove, 74, a chip discharge groove, 8, a clamping mechanism, 81, a positioning pipe, 82, a positioning hole, 83, a clamping block, 84, a slot, 85 and a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a groover bit comprising: the drill bit comprises a handle part 2, a drill bit body 3, limiting blocks 4, water spray holes 5, a water conveying pipe 6, a cutting mechanism 7 and a clamping mechanism 8, wherein the drill bit body 3 is detachably arranged at the bottom of the handle part 2, the two limiting blocks 2 are respectively arranged at the top ends of the left side and the right side of the handle part 2 and used for fixing a tool bit with an external tool bit clamp, the water spray holes 5 are formed in the bottom of the drill bit body 3 and used for spraying cutting fluid from the bottom, so that the cutting fluid is discharged from a groove, the space between the drill bit body 3 and a notch is lubricated, the drill bit body 3 is cooled, the water conveying pipe 6 is formed in the bottom of the handle part 2 from top to bottom and communicated with the water spray holes 5, the cutting mechanism 7 is arranged on the side wall of the drill bit body 3, and the clamping mechanism 8 is arranged at the bottom end of the handle part 2 and connected with the top end of the drill bit body 3;

the cutting mechanism 7 includes: lateral part cutting assembly 71, bottom cutting assembly 72, intercommunication groove 73 and chip groove 74, lateral part cutting assembly 71 is a plurality of, set up in the lateral wall of bit body 3 along circumference respectively, bottom cutting assembly 72 is a plurality of, set up respectively in the bottom of lateral part cutting assembly 71, intercommunication groove 73 is a plurality of, set up respectively in the bottom outside of bit body 3 along circumference, and be located the intermediate position between two adjacent bottom cutting assembly 72, chip groove 74 is a plurality of, set up respectively in the lateral wall bottom of stalk portion 2 along circumference, and correspond with lateral part cutting assembly 71's position, chip groove 74 is used for discharging the cutting bits.

Preferably, further, the side cutting assembly 71 includes: the drill bit comprises a spiral groove 711, spiral blades 712 and a rear flute edge 713, wherein the spiral grooves 711 of a plurality of side cutting assemblies 71 are respectively arranged on the side wall of the drill bit body 3 along the circumferential direction, the spiral grooves 711 are respectively communicated with the chip discharge grooves 74, the communication grooves 73 are respectively arranged at the middle position of the bottom of the spiral grooves 711 from the outer side to the inner side, the spiral blades 712 are arranged at the outer edge of one side of the spiral grooves 711, the rear flute edge 713 is arranged at the other side of the spiral grooves 711, cutting chips cut by the high-speed rotation of the spiral blades 712 gradually increase, and the cutting chips and the rear flute edge 713 break after being released, so that the cutting effect is achieved.

Preferably, the chip grooves 74 and the spiral grooves 711 are arranged counterclockwise from bottom to top, the pitch of the chip grooves 74 is the same as that of the spiral grooves 711, and the spiral blades 712 are located on the counterclockwise side in the inner cavity of the spiral grooves 711, so that cutting chips generated by cutting can be discharged through the chip grooves 74, and secondary cutting is prevented.

Still further, the bottom cutting assembly 72 preferably includes: the cutting tool comprises a main cutting edge 721, a tool nose 722, a front tool surface 723, a rear tool surface 724 and a cutting rib 725, wherein the front tool surface 723 is arranged at the bottom end of the counterclockwise side of the spiral groove 711 and connected with the spiral edge 712, the cutting rib 725 is arranged at the top end of the front tool surface 723, the rear tool surface 724 is arranged at the bottom of the front tool surface 723, the main cutting edge 721 is arranged at the intersection of the front tool surface 723 and the rear tool surface 724 and arranged from the outer side to the inner side, the tool nose 722 is arranged at the intersection of the spiral edge 712 and the main cutting edge 721, the main cutting edge 721 rotates at a high speed for cutting, cutting chips generated by cutting are extruded by the front tool surface 723 and the cutting rib 725, are twisted upwards and are cut after contacting with the spiral groove 711, and secondary cutting is avoided.

Preferably, the flank surface 724 is inclined upward in a direction away from the main cutting edge 721, so that friction between the bottom of the drill body 3 and the machined part during cutting is greatly reduced.

Preferably, the latch mechanism 8 further includes: the positioning tube 81, the locating hole 82, the fixture block 83, slot 84 and joint groove 85, the positioning tube 81 sets up in the bottom of stalk portion 2, the top in drill bit body 3 is seted up to the locating hole 82, and positioning tube 81 pegs graft with locating hole 82 looks adaptation, fixture block 83 quantity is a plurality of, set up in the lateral wall bottom of positioning tube 81 respectively along circumference, slot 84 quantity is a plurality of, set up the inner chamber lateral wall in locating hole 82 respectively along circumference, joint groove 85 quantity is a plurality of, set up clockwise one side in the bottom of slot 84 respectively.

Preferably, a chamfer is formed at the connection between the top of the clamping groove 84 and the insertion groove 84.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

Firstly, a main shaft of an external groover drives a tool bit of the groover to rotate, so that the bottom of a drill bit body 3 is in contact with the surface of a part and is fed downwards, a main cutting edge 721 rotates at a high speed to cut, cutting chips generated by cutting are extruded by a front tool face 723 and a cutting rib 725 and are twisted upwards, the cutting chips are cut after being in contact with a spiral groove 711, secondary cutting is avoided, the cutting chips are fed downwards for a certain distance to finish downward cutting, then the groover drives a rotating handle to feed towards the grooving direction, a spiral edge 712 cuts the side wall of the groove, the cutting chips cut by the spiral edge 712 rotating at a high speed gradually increase and break after being released from a rear groove edge 713, and therefore the cutting effect is achieved, and secondary cutting is avoided until grooving is finished;

secondly, the clamping block 83 is clamped through the clamping groove 85, when the drill body 3 is driven to rotate by the handle 2, the clamping block 83 is only embedded in the inner wall of the clamping groove 85 under the action of cutting resistance, so that the drill body 3 is prevented from falling off, and when the main cutting edge 721, the spiral blade 712 or the cutter point 722 are worn or damaged, the drill body 3 is rotated in the opposite direction to enable the clamping block 83 to slide along the clamping groove 85 until the clamping block 83 is opposite to the slot 84, so that the drill body 3 can be taken down for replacement;

the device can feed in the vertical direction, and the drill body can be replaced after the tool tip or the cutting edge is broken or worn.

In the description of the present invention, it is to be understood that the terms "bottom", "one end", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated; unless otherwise specifically stated or limited, the terms "snap" and "connect" and "set" and "open" and "electrically connect" and "fixedly connect" are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A groover bit comprising: stalk portion (2), drill bit body (3) and stopper (4), drill bit body (3) detachably install in the bottom of stalk portion (2), stopper (4) quantity is two, set up respectively in the left and right sides top of stalk portion (2), its characterized in that still includes:

the water spraying hole (5) is formed in the bottom of the drill bit body (3);

the water delivery pipe (6) is arranged at the bottom end of the handle part (2) from top to bottom and is communicated with the water spray holes (5);

a cutting mechanism (7) provided on a side wall of the bit body (3);

the clamping mechanism (8) is arranged at the bottom end of the handle part (2) and is connected with the top end of the drill bit body (3);

the cutting mechanism (7) comprises:

the number of the side cutting assemblies (71) is several, and the side cutting assemblies are respectively arranged on the side wall of the drill bit body (3) along the circumferential direction;

the bottom cutting assemblies (72) are arranged at the bottom of the side cutting assembly (71) respectively;

the number of the communication grooves (73) is a plurality, the communication grooves are respectively arranged on the outer side of the bottom of the drill bit body (3) along the circumferential direction and are positioned in the middle between two adjacent bottom cutting assemblies (72);

the chip grooves (74) are a plurality of and are respectively arranged at the bottom end of the side wall of the handle part (2) along the circumferential direction and correspond to the position of the side cutting assembly (71).

2. A groover head as claimed in claim 1, wherein: the side cutting assembly (71) comprises:

the spiral grooves (711) of the side cutting assemblies (71) are respectively arranged on the side wall of the drill body (3) along the circumferential direction, the spiral grooves (711) are respectively communicated with the chip discharge grooves (74), and the communication grooves (73) are respectively arranged at the middle positions of the bottoms of the spiral grooves (711) from the outer side to the inner side;

a spiral blade (712) provided on one outer edge of the spiral groove (711);

and a rear land (713) provided on the other side of the spiral groove (711).

3. A groover head as claimed in claim 2, wherein: the chip groove (74) and the spiral groove (711) are arranged anticlockwise from bottom to top, the pitch of the chip groove (74) and the spiral groove (711) is the same, and the spiral blade (712) is located on the anticlockwise side in the inner cavity of the spiral groove (711).

4. A groover head as claimed in claim 3, wherein: the bottom cutting assembly (72) includes:

a rake surface (723) which is provided at the bottom end of the spiral groove (711) on the counterclockwise side and is connected to the spiral blade (712);

a cutting ridge (725) provided at the tip of the rake surface (723);

a flank surface (724) provided at the bottom of the rake surface (723);

a major cutting edge (721) provided at the intersection of the rake surface (723) and the flank surface (724) and extending from the outside to the inside;

and a blade tip (722) provided at the intersection of the spiral blade (712) and the main cutting edge (721).

5. The groover head of claim 4, wherein: the flank surface (724) is inclined gradually upward in a direction away from the main cutting edge (721).

6. A groover head according to claim 5, wherein: the clamping mechanism (8) comprises:

a positioning tube (81) provided at the bottom end of the handle (2);

the positioning hole (82) is formed in the top end of the drill bit body (3), and the positioning pipe (81) is in adaptive insertion connection with the positioning hole (82);

the number of the clamping blocks (83) is a plurality, and the clamping blocks are respectively arranged at the bottom end of the side wall of the positioning pipe (81) along the circumferential direction;

the number of the slots (84) is a plurality, and the slots are respectively arranged on the side wall of the inner cavity of the positioning hole (82) along the circumferential direction;

the clamping grooves (85) are provided with a plurality of numbers and are respectively arranged on one side of the bottom of the slot (84) clockwise.

7. The groover head of claim 6, wherein: and a chamfer is arranged at the joint of the top of the clamping groove (85) and the slot (84).

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