CN215509343U

CN215509343U - Thread milling cutter with internal cooling

Info

Publication number: CN215509343U
Application number: CN202121668454.8U
Authority: CN
Inventors: 戴少杰; 戴志伟; 恽建琴
Original assignee: Changzhou Zhiwei Tools Co ltd
Current assignee: Changzhou Zhiwei Tools Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-01-14
Anticipated expiration: 2031-07-21

Abstract

The utility model relates to the technical field of milling cutters and discloses a thread milling cutter with internal cooling, which comprises a connector, wherein the outer wall of the connector is in threaded connection with a connecting rod, the internal thread of the connecting rod is connected with a cutter head, water is filled into a water storage box, the water flows into the connecting pipe from the inside of the water storage box, an elastic sleeve shell with elasticity is fixedly arranged inside a through hole, when the water flows into the connecting pipe, the through hole inside the elastic sleeve shell can generate certain deformation under the action of the water, when the water is more and more, the elastic sleeve shell can be propped open by the water, the amount of the water which can be accommodated inside the connecting pipe is increased, meanwhile, when the propped open volume of the elastic sleeve shell is increased, the outer wall of the elastic sleeve shell can be mutually pressed with the inner wall of the cutter head, the inside of the elastic sleeve shell is also filled with the water, when the elastic sleeve shell is mutually pressed with the inner wall of the cutter head, the water is contacted with the inner wall of the cutter head to be more tightly, thereby playing certain cooling effect to the tool bit when the tool bit is worked.

Description

Thread milling cutter with internal cooling

Technical Field

The utility model relates to the technical field of milling cutters, in particular to a thread milling cutter with internal cooling.

Background

The traditional thread processing method mainly adopts a threading tool to turn threads or adopts a screw tap and a die to manually tap and sleeve and buckle. With the development of numerical control processing technology, particularly the appearance of a three-axis linkage numerical control processing system, a more advanced thread processing mode, namely the numerical control milling of threads, is realized, and the problem that fingers are scratched by a common milling cutter can occur during manual installation.

According to the chinese patent publication (publication No. CN207592967U), a hollow thread milling cutter includes a first connector, a connecting rod, a working head, a spiral groove, a cutting edge, a rotating handle, a second connector, a first connecting hole, a thread, a center hole, and a second connecting hole. The utility model has the beneficial effects that: through set up the centre bore in the centre of connecting rod, not only can save the processing material and can also improve the intensity of connecting rod. The first connecting head can be replaced at any time according to the size of the opening of the clamp, the whole milling cutter does not need to be replaced, the number of thread milling cutters purchased by a manufacturer is reduced, the production cost is reduced, meanwhile, due to the fact that the working head and the connecting rod are movably connected, workers can replace different working heads to tap holes with different sizes according to actual conditions, the workers can conveniently install the working heads through rotating the handles, and meanwhile, when the workers are prevented from installing the working heads, fingers are scratched.

However, when the working head processes a workpiece, the working head continuously rotates and rubs on the inner wall of the workpiece, a large amount of heat is generated during the rubbing, and the working head is heated under the action of the heat, so that the surface temperature of the working head is high after the working, and the service life of the milling cutter can be reduced after the working head is processed for a long time.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the deficiencies of the prior art, the present invention provides a thread milling cutter with internal cooling that solves the above-mentioned problems.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a thread milling cutter with inside refrigerated, includes the connector, the outer wall threaded connection of connector has the connecting rod, the inside threaded connection of connecting rod has the tool bit, the inside of connecting rod is provided with the water storage box that can dismantle, the water storage box is close to one side wall of connector and has seted up the inlet, the inside threaded connection of inlet has the bolt, the outer wall fixed mounting of bolt has the piston pad, the inside of water storage box is pegged graft and is had the connecting pipe, the thru hole has been seted up to the outer wall of connecting pipe, the inside fixed mounting of thru hole has elastic elasticity cover shell, elasticity cover shell is hemisphere hollow structure.

Preferably, the inside of tool bit has seted up the draw-in groove, the outer wall fixed mounting of connecting pipe have can with the draw-in groove joint stopper one together, stopper one is formed by the combination of the piece of a round platform shape and a hemisphere shape piece.

Preferably, the outer wall of the first limiting block is fixedly provided with two elastic clamps with elasticity, and the cross section of each elastic clamp is V-shaped.

Preferably, four circular grooves are formed in the connecting rod, the clamping blocks are fixedly arranged inside the circular grooves in the connecting rod, and four limiting blocks which can be attached to the clamping blocks are fixedly arranged on the outer wall of the water storage box.

Preferably, the outer wall of the clamping block is provided with a jack, and the outer wall of the second limiting block is fixedly provided with a fixing block which can be connected with the jack in a plugging manner.

(III) advantageous effects

Compared with the prior art, the utility model provides a thread milling cutter with internal cooling, which has the following beneficial effects:

1. the thread milling cutter with internal cooling is characterized in that the connecting head is rotated, the connecting rod and the cutter head are connected with each other, when the milling cutter works, the cutter head is in rotating friction with the inner wall of a workpiece to be processed, more heat can be generated when the cutter head rotates, the detachable water storage box is arranged in the connecting rod, water is filled into the water storage box through a liquid inlet formed in the outer wall of the water storage box, the water flows into the connecting pipe from the inside of the water storage box, the connecting pipe extends to the inside of the cutter head all the time, meanwhile, the outer wall of the connecting pipe is provided with a through hole, an elastic sleeve shell is fixedly arranged in the through hole, when the water flows into the connecting pipe, the through hole in the elastic sleeve shell can generate certain deformation under the action of the water, when more water is supplied, the elastic sleeve shell can be propped open by the water, at the moment, the whole volume of the elastic sleeve shell is increased more and more, the quantity of the inside water that can hold of connecting tube increases, simultaneously, when the elasticity cover shell was propped open the volume increase, the outer wall of elasticity cover shell can with the mutual pressfitting of the inner wall of tool bit, the inside water that has also been full of elasticity cover shell, when the mutual pressfitting of inner wall of elasticity cover shell and tool bit, water and the inner wall contact of tool bit more closely to play certain cooling's effect to the tool bit when the tool bit during operation.

2. This thread milling cutter with inside cooling, there is the fixed block that can be in the same place with the jack joint through the outer wall fixed mounting at the stopper, when installing the water storage box, promote the water storage box to the inside of connecting rod, the inside of water storage box slip entering connecting rod, slide to the fixture block and when the stopper is laminated each other when the water storage box, the inside of jack is advanced to the fixed block card of stopper outer wall this moment, the water storage box at this moment is by spacing fixed under the mutually supporting of fixed block and jack, rotate the connector simultaneously, the connector is in the same place with connecting rod threaded connection, the connector rotates to the outer wall that supports the bolt to the inside of connecting rod, when needs are dismantled the water storage box, can to the outside pulling water storage box of connecting rod, thereby be convenient for carry out dismouting washing to the water storage box and maintain.

3. This thread milling cutter with inside cooling has two elastic clamps through the outer wall fixed mounting at the stopper, when the stopper slides the inside that the card advances the draw-in groove, has elastic clamp and produces certain deformation and slide the inside of draw-in groove under the inner wall extrusion of draw-in groove, when the stopper card advances the inside of draw-in groove, elastic clamp presss from both sides to the inner wall pressfitting each other with the draw-in groove under the elastic action of self in order to improve the stability of stopper when the card advances the draw-in groove inside.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a schematic perspective view of a three-dimensional split according to an embodiment of the present invention;

FIG. 3 is a schematic view of a half-section three-dimensional split in the embodiment of the present application;

FIG. 4 is a partial perspective view of the present embodiment;

FIG. 5 is a partial schematic view of A of FIG. 3;

FIG. 6 is a partial schematic view of B of FIG. 3;

fig. 7 is a three-dimensional schematic view of the present embodiment.

In the figure: 1. a connector; 2. a connecting rod; 3. a cutter head; 4. a card slot; 5. a water storage box; 6. a connecting pipe; 7. a first limiting block; 8. through holes; 9. an elastic casing; 10. a clamping block; 11. a jack; 12. a second limiting block; 13. a fixed block; 14. an elastic clip; 15. a liquid inlet; 16. a bolt; 17. a piston pad.

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.

The first embodiment is as follows: referring to fig. 1-5, a thread milling cutter with internal cooling comprises a connector 1, wherein the connector 1 is of a cylindrical structure, an external thread is formed on the outer circular wall of the connector 1, a connecting rod 2 is in threaded connection with the outer wall of the connector 1, the connecting rod 2 is of a cylindrical hollow structure, an internal thread is formed on the inner circular wall of the connecting rod 2, a cutter head 3 is in threaded connection with the inside of the connecting rod 2, an external thread is formed on the outer circular wall of the cutter head 3, a detachable water storage box 5 is arranged inside the connecting rod 2, the water storage box 5 is of a cylindrical hollow structure, a liquid inlet 15 is formed on one side wall of the water storage box 5, which is close to the connector 1, the liquid inlet 15 is a circular threaded through hole, a bolt 16 is in threaded connection with the inside of the liquid inlet 15, the outer wall of the bolt 16 is mutually attached to the connector 1, a piston pad 17 is fixedly installed on the outer wall of the bolt 16, and the piston pad 17 is of a cylindrical structure, piston pad 17 is for having elastic rubber material, the mutual pressfitting of outer wall of piston pad 17 and inlet 15's inner wall, the inside of water storage box 5 is pegged graft and is had connecting pipe 6, the cylindrical hollow structure of connecting pipe 6, circular opening has been seted up to the outer wall of connecting pipe 6, thru hole 8's quantity is seted up according to the outer wall area of connecting pipe 6, the inside fixed mounting of thru hole 8 has elastic elasticity cover shell 9, elasticity cover shell 9 is hemisphere hollow structure, elasticity cover shell 9 is for having elastic rubber material, draw-in groove 4 has been seted up to the inside of tool bit 3, draw-in groove 4 is the circular recess, the outer wall fixed mounting of connecting pipe 6 has stopper one 7 that can be in the same place with draw-in groove 4 joint, stopper one 7 is formed by the combination of the piece of a round platform shape and a hemisphere piece, stopper one 7 is for having elastic rubber material.

The working principle is as follows: the connector 1 is rotated, the connecting rod 2 and the tool bit 3 are connected with each other, when the milling cutter works, the tool bit 3 is in rotational friction with the inner wall of a workpiece to be processed, more heat can be generated when the tool bit 3 rotates, the detachable water storage box 5 is arranged in the connecting rod 2, water is filled into the water storage box 5 through a liquid inlet 15 formed in the outer wall of the water storage box 5, the water flows into the connecting pipe 6 from the inside of the water storage box 5, the connecting pipe 6 extends into the tool bit 3 all the time, meanwhile, a through hole 8 is formed in the outer wall of the connecting pipe 6, an elastic sleeve shell 9 with elasticity is fixedly installed in the through hole 8, when the water flows into the connecting pipe 6, the through hole 8 in the elastic sleeve shell 9 can generate certain deformation under the action of the water, when more and more water is generated, the elastic sleeve shell 9 can be propped open by the water, at the moment, the whole volume of the elastic sleeve shell 9 is increased, the amount of the inside water that can hold of connecting pipe 6 increases, simultaneously, when elasticity cover shell 9 is propped open the volume increase, the outer wall of elasticity cover shell 9 can with the mutual pressfitting of the inner wall of tool bit 3, the inside water that has also been full of elasticity cover shell 9, when the mutual pressfitting of the inner wall of elasticity cover shell 9 and tool bit 3, water contacts with the inner wall of tool bit 3 and pastes closely more to play certain cooling's effect to tool bit 3 when tool bit 3 is worked.

Example two: on the basis of embodiment one, as fig. 6, four circular recesses have been seted up to the inside of connecting rod 2, the inside fixed mounting of the inside circular recess of connecting rod 2 has fixture block 10, fixture block 10 is the L-shaped piece, jack 11 has been seted up to the outer wall of fixture block 10, jack 11 is circular through-hole, the outer wall fixed mounting of water storage box 5 has four stopper two 12 that can laminate each other with fixture block 10, stopper two 12 is the rectangle structure, the outer wall fixed mounting of stopper two 12 has fixed block 13 that can connect together with 11 plug-in cards of jack, fixed block 13 is cylindrical structure, the outer wall of fixed block 13 is lined with rubber.

The working principle is as follows: through the outer wall fixed mounting at stopper two 12 can with the fixed block 13 of jack 11 joint together, when installing water storage box 5, promote water storage box 5 to the inside of connecting rod 2, water storage box 5 slides the inside that gets into connecting rod 2, slide when water storage box 5 is laminated each other to fixture block 10 and stopper two 12, the inside of jack 11 is gone into to the fixed block 13 card of stopper two 12 outer walls this moment, water storage box 5 at this moment is spacing fixed under fixed block 13 and jack 11's the mutually supporting, rotate connector 1 simultaneously, connector 1 is in the same place with 2 threaded connection of connecting rod, connector 1 rotates to the outer wall that supports bolt 16 to the inside of connecting rod 2, when needs are dismantled water storage box 5, to the outside pulling water storage box 5 of connecting rod 2 can, thereby be convenient for carry out dismouting washing maintenance to water storage box 5.

Example three: on the basis of the first embodiment, as shown in fig. 7, two elastic clamps 14 with elasticity are fixedly installed on the outer wall of the first limiting block 7, the cross section of each elastic clamp 14 is in a V shape, the elastic clamps 14 can be pressed with the inner wall of the clamping grooves 4, and the elastic clamps 14 can deform to a certain extent.

The working principle is as follows: through the outer wall fixed mounting at stopper one 7 have two elastic clamp 14 that have, when stopper one 7 slides the card and advances the inside of draw-in groove 4, have elastic clamp 14 and produce certain deformation and slide the inside of draw-in groove 4 under the inner wall extrusion of draw-in groove 4, when stopper one 7 card advances the inside of draw-in groove 4, elastic clamp 14 under the elastic action of self to with the inner wall of draw-in groove 4 pressfitting each other in order to improve the stability of stopper one 7 when the card advances draw-in groove 4 inside.

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

1. The utility model provides a thread milling cutter with inside cooling, includes connector (1), the outer wall threaded connection of connector (1) has connecting rod (2), and the internal thread connection of connecting rod (2) has tool bit (3), its characterized in that: the inside of connecting rod (2) is provided with water storage box (5) that can dismantle, inlet (15) have been seted up to a side wall face that water storage box (5) are close to connector (1), the inside threaded connection of inlet (15) has bolt (16), the outer wall fixed mounting of bolt (16) has piston pad (17), the inside grafting of water storage box (5) has connecting pipe (6), thru hole (8) have been seted up to the outer wall of connecting pipe (6), the inside fixed mounting of thru hole (8) has elastic elasticity cover shell (9), elasticity cover shell (9) are hemisphere hollow structure.

2. A thread milling cutter with internal cooling according to claim 1, characterized in that: draw-in groove (4) have been seted up to the inside of tool bit (3), the outer wall fixed mounting of connecting pipe (6) have can with draw-in groove (4) joint stopper one (7) together, stopper one (7) are formed by the combination of the piece of a round platform shape and a hemisphere shape piece.

3. A thread milling cutter with internal cooling according to claim 2, characterized in that: the outer wall of the first limiting block (7) is fixedly provided with two elastic clamps (14), and the cross section of each elastic clamp (14) is V-shaped.

4. A thread milling cutter with internal cooling according to claim 1, characterized in that: four circular recesses have been seted up to the inside of connecting rod (2), and the inside fixed mounting of the inside circular recess of connecting rod (2) has fixture block (10), and the outer wall fixed mounting of water storage box (5) has four stopper two (12) that can laminate each other with fixture block (10).

5. A thread milling cutter with internal cooling according to claim 4, characterized in that: the outer wall of the clamping block (10) is provided with a jack (11), and the outer wall of the second limiting block (12) is fixedly provided with a fixing block (13) which can be plugged with the jack (11).