CN216065875U

CN216065875U - Thread drill bit convenient for injecting cutting fluid

Info

Publication number: CN216065875U
Application number: CN202121912545.1U
Authority: CN
Inventors: 潘震生; 王慧
Original assignee: Shanghai Xinwei Cemented Carbide Tools Co ltd Dongtai Branch
Current assignee: Shanghai Xinwei Cemented Carbide Tools Co ltd Dongtai Branch
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-03-18
Anticipated expiration: 2031-08-16

Abstract

The utility model discloses a threaded drill bit convenient for injecting cutting fluid, which comprises a guide cone, a positioning bolt, a sliding ring inner ring and a sliding ring outer ring, wherein a guide pillar is fixed on one side of the guide cone, the guide pillar is slidably installed in an installation groove, the installation groove is formed in one side of a cutter bar, an opening is formed in the outer side of the cutter bar, the positioning bolt penetrates through the bottom of the opening and is in threaded connection with the outer side of the guide pillar, a connecting table is fixed on the outer side of the cutter bar, and an external thread is arranged on one side of the connecting table. This threaded drill convenient to pour into cutting fluid into is provided with the sliding ring inner circle, sliding ring outer lane and feed liquor hole, and cutting fluid feed liquor pipe is installed on the feed liquor pipe interface, and the cutting fluid flows through the buffering in proper order through feed liquor pipe interface afterwards, fan-shaped groove and a plurality of feed liquor hole, and until the cutting fluid through the left feed liquor hole blowout of guide cone, the cutting fluid of being convenient for pour into to the deep hole is inside, plays lubricated and refrigerated effect to the deep hole inside then, very big improvement this threaded drill's processingquality.

Description

Thread drill bit convenient for injecting cutting fluid

Technical Field

The utility model relates to the technical field of thread drill bits, in particular to a thread drill bit convenient for injecting cutting fluid.

Background

The thread drill is a tool for processing internal threads, and is classified into a straight thread drill, a spiral thread drill and a point thread drill according to the shape thereof.

The existing thread drill bit is not provided with a liquid inlet hole usually, the cutting liquid sprayed by a high-pressure spray head is adopted to cool and lubricate when an internal thread is processed, but when the thread of a deep hole is processed, the cutting liquid sprayed from the outside is difficult to enter the inside of the deep hole, so that the thread drill bit has low processing precision when the thread of the deep hole is processed, the existing thread drill bit is of an integral structure usually, when the thread of the deep hole is processed, in order to ensure the strength of the cutter rod, a special steel material is required to be used for manufacturing the cutter rod, the existing thread drill bit has higher manufacturing cost, the service life of a guide cone in the actual use process is far shorter than that of the cutter rod, the cutter rod can be normally used when the guide cone is damaged, the thread drill bit is directly abandoned, resources are wasted, the production cost is also increased, and the problem is solved, and the existing equipment needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a thread drill bit convenient for injecting cutting fluid, and aims to solve the problems that the existing thread drill bit provided in the background technology is not provided with a liquid inlet hole generally, but when deep hole threads are machined, the cutting fluid sprayed from the outside is difficult to enter the deep hole, so that the machining precision of the thread drill bit is not high when the deep hole threads are machined, the existing thread drill bit is of an integral structure generally, the service life of a guide cone in the actual use process is far shorter than that of a cutter bar, the cutter bar can still be normally used when the guide cone is damaged, the thread drill bit is directly abandoned, resources are wasted, and the production cost is increased.

In order to achieve the purpose, the utility model provides the following technical scheme: a thread drill bit convenient for injecting cutting fluid comprises a guide cone, a positioning bolt, a slip ring inner ring and a slip ring outer ring,

a guide pillar is fixed on one side of the guide cone and is slidably mounted in a mounting groove, the mounting groove is formed in one side of the cutter bar, an opening is formed in the outer side of the cutter bar, and the positioning bolt penetrates through the bottom of the opening and is in threaded connection with the outer side of the guide pillar;

the utility model discloses a slip ring, including cutter arbor, connecting platform, slip ring inner circle, rubber packing ring and slip ring inner circle, the cutter arbor outside is fixed with the connection platform, and connects platform one side and be provided with the external screw thread, connect the laminating of platform outside and be provided with the slip ring inner circle, and slip ring inner circle one side through external screw thread and connection platform one side threaded connection, connect the platform opposite side through rubber packing ring and slip ring inner circle opposite side sealing connection, and the rubber packing ring installs between connection platform and slip ring inner circle, the slip ring inner circle outside is rotated and is connected with the slip ring outer circle, and slip ring outer circle top is provided with feed liquor pipe interface, the feed liquor hole has all been run through inside the guide cone, inside and the cutter arbor of guide pillar, the sector groove has been seted up to slip ring inner circle one side, the annular has been seted up to slip ring outer circle inside.

Preferably, the central line of the guide pillar, the central line of the guide cone and the central line of the cutter bar are superposed;

through adopting above-mentioned technical scheme, drive arrangement drives the cutter arbor and rotates, and the cutter arbor passes through the guide pillar afterwards and drives the guide cone rotation, makes the guide cone rotate more stably.

Preferably, the diameter size of the cutter rod is smaller than that of the guide cone;

through adopting above-mentioned technical scheme, the cutter arbor of being convenient for causes the influence to the tapping processing of guide cone.

Preferably, the upper ends of the positioning bolts are positioned in the opening, and the two positioning bolts are symmetrically arranged by taking the guide pillar as a center;

through adopting above-mentioned technical scheme, two positioning bolt are simultaneously with guide pillar threaded connection, make the guide pillar fixed more firm.

Preferably, the connection mode between the slip ring inner ring and the slip ring outer ring is rotary sealing connection;

by adopting the technical scheme, the outer ring of the slip ring is relatively static, and meanwhile, the inner ring of the slip ring rotates rapidly along with the cutter bar, and at the moment, the ring groove in the outer ring of the slip ring is still communicated with the fan-shaped groove in the inner ring of the slip ring.

Preferably, the liquid inlet pipe joint, the annular groove, the fan-shaped groove and the plurality of liquid inlet holes are communicated in sequence, and the central lines of the plurality of liquid inlet holes are overlapped;

by adopting the technical scheme, the cutting fluid can conveniently pass through the liquid inlet pipe connector, the annular groove, the fan-shaped groove and the plurality of liquid inlet holes in sequence, and then the cutting fluid is sprayed out through the liquid inlet hole on the left side of the guide cone.

Compared with the prior art, the utility model has the beneficial effects that: the thread drill bit convenient for injecting the cutting fluid,

(1) the threaded drill bit is provided with a guide pillar, an installation groove and a positioning bolt, the guide pillar on the right side of the guide cone is inserted into the installation groove, the positioning bolt is rotated, the positioning bolt penetrates through the cutter bar and is in threaded connection with the guide pillar, so that the guide pillar is fixedly installed in the installation groove, the guide cone and the cutter bar in the threaded drill bit are independent parts, the guide cone can be replaced conveniently, the cutter bar is reused, waste is reduced, and production cost is reduced;

(2) the threaded drill bit is provided with a sliding ring inner ring, a sliding ring outer ring and a liquid inlet hole, a cutting liquid inlet pipe is installed on a liquid inlet pipe interface, then the cutting liquid sequentially flows through a buffer, a fan-shaped groove and a plurality of liquid inlet holes through the liquid inlet pipe interface until the cutting liquid is sprayed out through the liquid inlet hole on the left side of a guide cone, the cutting liquid is convenient to inject into the deep hole, then the lubricating and cooling effects are achieved on the inside of the deep hole, and the processing quality of the threaded drill bit is greatly improved.

Drawings

FIG. 1 is a schematic cross-sectional front view of the present invention;

FIG. 2 is a schematic diagram of a left side view cross-sectional structure of the present invention;

FIG. 3 is a schematic diagram of a cross-sectional structure of the outer ring of the slip ring according to the present invention;

FIG. 4 is a schematic diagram of the right side view of the present invention;

FIG. 5 is a schematic diagram of a right side view of a cross-sectional structure of the blade holder of the present invention.

In the figure: 1. the guide cone comprises a guide cone body, 2 parts of a guide pillar, 3 parts of a mounting groove, 4 parts of a cutter bar, 5 parts of an opening, 6 parts of a positioning bolt, 7 parts of a connecting table, 8 parts of an external thread, 9 parts of a sliding ring inner ring, 10 parts of a rubber gasket, 11 parts of a sliding ring outer ring, 12 parts of a liquid inlet pipe connector, 13 parts of a liquid inlet hole, 14 parts of a fan-shaped groove, 15 parts of a ring 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. 1-5, the present invention provides a technical solution: a thread drill bit convenient for injecting cutting fluid, as shown in figures 1 and 5, a guide post 2 is fixed at one side of a guide cone 1, the guide post 2 is arranged in the mounting groove 3 in a sliding manner, the center line of the guide post 2, the center line of the guide cone 1 and the center line of the cutter bar 4 are superposed, the rotating axis of the cutter bar 4 is superposed with the rotating axis of the guide cone 1, so that the guide cone 1 can rotate and tap conveniently, the mounting groove 3 is arranged on one side of the cutter bar 4, an opening 5 is arranged on the outer side of the cutter bar 4, the diameter of the cutter bar 4 is smaller than that of the guide cone 1, the cutter bar 4 can conveniently enter the deep hole along with the guide cone 1, the positioning bolt 6 penetrates through the bottom of the opening 5 to be in threaded connection with the outer side of the guide pillar 2, the upper end of the positioning bolt 6 is positioned in the opening 5, and two positioning bolt 6 use guide pillar 2 to be the symmetrical formula setting as the center, two positioning bolt 6 simultaneously with guide pillar 2 threaded connection, make guide pillar 2 fixed more firm in mounting groove 3 is inside.

As shown in fig. 1, 2, 3 and 4, a connecting platform 7 is fixed on the outer side of the cutter bar 4, an external thread 8 is arranged on one side of the connecting platform 7, a sliding ring inner ring 9 is attached to the outer side of the connecting platform 7, one side of the sliding ring inner ring 9 is in threaded connection with one side of the connecting platform 7 through the external thread 8, the connecting mode between the sliding ring inner ring 9 and the sliding ring outer ring 11 is in rotary sealing connection, the sliding ring inner ring 9 still keeps sealing connection with the sliding ring outer ring 11 when rotating at high speed, so that the cutting fluid in the ring groove 15 enters the sector groove 14, the other side of the connecting platform 7 is in sealing connection with the other side of the sliding ring inner ring 9 through a rubber gasket 10, the rubber gasket 10 is arranged between the connecting platform 7 and the sliding ring inner ring 9, the sliding ring outer ring 11 is rotatably connected on the outer side of the sliding ring 9, a liquid inlet pipe interface 12 is arranged on the top of the sliding ring outer ring 11, the liquid inlet pipe interface 12, the ring groove 15, the sector groove 14 and a plurality of liquid inlet holes 13 are sequentially communicated, and the central lines of a plurality of liquid inlet holes 13 coincide, so that cutting liquid sprayed from a cutting liquid inlet pipe sequentially enters the deep hole through a liquid inlet pipe connector 12, an annular groove 15, a fan-shaped groove 14 and a plurality of liquid inlet holes 13, the liquid inlet holes 13 penetrate through the interior of the guide cone 1, the interior of the guide pillar 2 and the interior of the cutter bar 4, the fan-shaped groove 14 is formed in one side of the inner ring 9 of the sliding ring, and the annular groove 15 is formed in the interior of the outer ring 11 of the sliding ring.

The working principle is as follows: when the thread drill bit convenient for injecting the cutting fluid is used, firstly, the cutter bar 4 is installed on a driving device, a cutting fluid inlet pipe is installed on a liquid inlet pipe interface 12 and communicated with the liquid inlet pipe interface 12, meanwhile, a sliding ring outer ring 11 is fixed on a spindle box through a connecting piece, a sliding ring inner ring 9 is rotated, the sliding ring inner ring 9 is installed on the outer side of a connecting platform 7 in a threaded mode through an external thread 8, a rubber gasket 10 between the connecting platform 7 and the sliding ring inner ring 9 plays a sealing role, a fan-shaped groove 14 is communicated with a liquid inlet hole 13, an external power supply is connected, the driving device is started, the driving device drives the cutter bar 4 to rotate, meanwhile, the cutter bar 4 stretches into a deep hole, at the moment, the cutter bar 4 drives a guide cone 1 to rotate through a guide post 2, the guide cone 1 enters the deep hole to perform tapping, meanwhile, a cutting fluid supply device is started, the cutting fluid enters the liquid inlet pipe interface 12 through the cutting fluid inlet pipe, and then the cutting fluid sequentially passes through the liquid inlet pipe interface 12, The annular groove 15, the fan-shaped groove 14 and the plurality of liquid inlet holes 13, until the cutting fluid is sprayed out through the liquid inlet holes 13 in the guide cone 1, the cutting fluid is conveniently injected into the deep hole, the sliding ring inner ring 9 is in rotary sealing connection with the sliding ring outer ring 11, when the sliding ring inner ring 9 rotates along with the cutter bar 4 at a high speed, the fan-shaped groove 14 still keeps communicating with the annular groove 15, then the cooling and lubricating effects on the guide cone 1 are achieved, the processing precision and the finished product quality are improved, after the guide cone 1 is damaged in use, the positioning bolt 6 is rotated and taken down, the guide pillar 2 is taken out in a sliding mode along the mounting groove 3, and similarly, the guide pillar 2 and the guide cone 1 which are renewed in reverse operation are convenient for repeatedly using the cutter bar 4, the production cost is reduced, the use has higher practicability, and all work is finished.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for simplicity of description only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be considered limiting of the claimed invention.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a thread drill convenient to pour into cutting fluid into, includes guide cone (1), positioning bolt (6), sliding ring inner circle (9) and sliding ring outer lane (11), its characterized in that:

a guide pillar (2) is fixed on one side of the guide cone (1), the guide pillar (2) is slidably mounted in a mounting groove (3), the mounting groove (3) is formed in one side of the cutter bar (4), an opening (5) is formed in the outer side of the cutter bar (4), and the positioning bolt (6) penetrates through the bottom of the opening (5) and is in threaded connection with the outer side of the guide pillar (2);

a connecting platform (7) is fixed on the outer side of the cutter bar (4), an external thread (8) is arranged on one side of the connecting platform (7), a sliding ring inner ring (9) is arranged on the outer side of the connecting platform (7) in a laminating manner, one side of the sliding ring inner ring (9) is in threaded connection with one side of the connecting platform (7) through the external thread (8), the other side of the connecting platform (7) is in sealed connection with the other side of the sliding ring inner ring (9) through a rubber gasket (10), the rubber gasket (10) is installed between the connecting platform (7) and the sliding ring inner ring (9), a sliding ring outer ring (11) is rotatably connected on the outer side of the sliding ring inner ring (9), a liquid inlet pipe interface (12) is arranged at the top of the sliding ring outer ring (11), liquid inlet holes (13) are respectively penetrated in the guide cone (1), the guide pillar (2) and the cutter bar (4), a fan-shaped groove (14) is formed in one side of the sliding ring inner ring (9), and a ring groove (15) is formed in the slip ring outer ring (11).

2. A thread drill facilitating the injection of cutting fluid according to claim 1, wherein: the center line of the guide post (2), the center line of the guide cone (1) and the center line of the cutter bar (4) are superposed.

3. A thread drill facilitating the injection of cutting fluid according to claim 1, wherein: the diameter of the cutter bar (4) is smaller than that of the guide cone (1).

4. A thread drill facilitating the injection of cutting fluid according to claim 1, wherein: the upper ends of the positioning bolts (6) are positioned in the opening (5), and the two positioning bolts (6) are symmetrically arranged by taking the guide pillar (2) as the center.

5. A thread drill facilitating the injection of cutting fluid according to claim 1, wherein: the connection mode between the slip ring inner ring (9) and the slip ring outer ring (11) is rotary sealing connection.

6. A thread drill facilitating the injection of cutting fluid according to claim 1, wherein: the liquid inlet pipe joint (12), the annular groove (15), the fan-shaped groove (14) and the plurality of liquid inlet holes (13) are communicated in sequence, and the central lines of the plurality of liquid inlet holes (13) are overlapped.