CN210360314U

CN210360314U - Milling cutter holder of quick-change tooth locking type CNC lathe

Info

Publication number: CN210360314U
Application number: CN201920568760.0U
Authority: CN
Inventors: 朱相兵
Original assignee: Dongguan Zhuxu Hardware Technology Co ltd
Current assignee: Dongguan Zhuxu Hardware Technology Co ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-04-21
Anticipated expiration: 2029-04-24

Abstract

The utility model belongs to the technical field of numerically controlled fraise machine, a quick change lock tooth formula CNC lathe mills blade holder is disclosed, comprises blade holder and the handle of a knife of locating blade holder one end, include: the sleeve is of a cylindrical structure with a hollow interior and is used for bearing all parts of the cutter holder; the rotating shaft is arranged in the sleeve, is rotatably connected with the sleeve through bearings arranged at two ends of the rotating shaft and is used for transmitting torque to the tool holder; the transmission gear is sleeved at one end of the rotating shaft, keeps a gap with the sleeve and is externally connected with a CNC lathe and drives the rotating shaft to rotate; wherein, the pivot is kept away from drive gear's one end is equipped with the fastener, is used for fixing the handle of a knife, the utility model provides a prior art mill the blade holder and the cutter connected mode is coarse, and it is long consuming time to change the cutter, and is inefficient, and connection accuracy is low, and the milling error is big, influences high quality, the milling process's of high accuracy problem.

Description

Milling cutter holder of quick-change tooth locking type CNC lathe

Technical Field

The utility model belongs to the technical field of numerically controlled fraise machine, especially, relate to a quick change lock tooth formula CNC lathe mills blade holder.

Background

Nowadays, with the rapid development of industry upgrading and modern technology, mechanical equipment is increasingly precise and compact, and with the need of frequent targeted configuration modification, especially mechanical parts required in the fields of spaceflight, ship, military, etc., the precision requirement is high, the shape is complex, the structural characteristics are strong, the equipment parts need to be processed to adjust the processing equipment setting according to the specific requirements, the common machine tool or the automatic machine tool with high degree of specialization can not adapt to the requirements, for this reason, the numerical control machine tool comes along with the operation, the numerical control milling machine mentioned in the utility model belongs to one kind of numerical control machine tool, also called cnc (computer numerical control) lathe, the processing surface shape of the milling machine is generally composed of straight line, circular arc or other curves, in the working process of the numerical control milling machine, the motion coordinates of the tool and the workpiece are divided into the smallest unit quantity, namely the smallest displacement, the numerical control system moves each coordinate by a plurality of minimum displacement according to the requirement of a workpiece program, so that the relative movement of the cutter and the workpiece is realized to complete the processing of parts, the milling cutter holder is used as an important component of the CNC lathe and is a pivot component for connecting the lathe and the cutter, wherein the milling cutter is connected with the milling cutter holder through the cutter handle and is driven by the lathe to complete the milling operation through the milling cutter holder.

The milling cutter seat and the milling cutter handle in the prior art are connected in a collet chuck mode, and are locked by the metal fixing claws or the sleeves to operate, but the milling cutter seat and the milling cutter handle can be stably connected in the connecting mode, but the connecting mode is coarse, the time consumption for replacing the milling cutter is long, the efficiency is low, the connecting precision is low, the milling error is large, the milling processing with high quality and high precision is influenced, and the condition needs to be changed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a quick change lock tooth formula CNC lathe mills blade holder to among the solution prior art, the CNC lathe is changed the cutter and is consumed long time, and is inefficient, mills blade holder and milling cutter handle of a knife and is connected the precision low, mills the great problem of error.

For realizing the purpose of the above utility model, the technical scheme adopted is as follows: the utility model provides a quick change lock tooth formula CNC lathe mills blade holder, comprises blade holder and the handle of a knife of locating blade holder one end, the blade holder includes: the sleeve is of a cylindrical structure with a hollow interior and is used for bearing all parts of the cutter holder; the rotating shaft is arranged in the sleeve, is rotatably connected with the sleeve through bearings arranged at two ends of the rotating shaft and is used for transmitting torque to the tool holder; the transmission gear is sleeved at one end of the rotating shaft, keeps a gap with the sleeve and is externally connected with a CNC lathe and drives the rotating shaft to rotate; and a fastener is arranged at one end of the rotating shaft, which is far away from the transmission gear, and is used for fixing the knife handle.

The utility model discloses further set up to: the handle of a knife comprises connector and setting element, the connector is high-speed steel and is used for external milling cutter, the setting element is located the one end of connector, its be used for with blade holder fastening connection, wherein, the connector with the integrative casting of setting element takes shape.

The utility model discloses further set up to: the positioning member includes: the cutter handle positioning surface is arranged at one end of the connector, is arranged in a plane and is used for positioning the cutter handle; the handle positioning column is arranged at one end, close to the handle positioning surface, of the connector, is arranged in a cylindrical or conical shape and is used for positioning the handle; the locking screw is arranged at one end, far away from the cutter handle positioning surface, of the cutter handle positioning column, and threads are arranged on the outer surface of the locking screw.

The utility model discloses further set up to: the fastener includes: the mounting blind hole is formed in the top end of the rotating shaft and is fixedly connected with the locking screw through threads; the positioning surface is arranged at one end, close to the mounting blind hole, of the rotating shaft and is arranged in a plane, and the positioning surface is abutted to the cutter handle positioning surface; the positioning hole is arranged at one end, close to the positioning surface, in the mounting blind hole and is arranged in a circular hole or a conical hole, and the inner wall of the positioning hole is abutted to the outer wall of the cutter handle positioning column.

The utility model discloses further set up to: the tool apron is characterized by further comprising a mounting seat, wherein the mounting seat is arranged at one end of the sleeve, is integrally formed with the sleeve and is used for fixedly connecting the tool apron with a CNC lathe.

The utility model discloses further set up to: four vertex angles of one end of the mounting seat are provided with mounting holes which are used for being fastened and connected with a CNC lathe through bolts.

The utility model discloses further set up to: an oil through hole is formed in one side of the mounting seat, one end of the oil through hole is directly abutted to the rotating shaft, and lubricating oil used for lubricating and cooling the cutter holder is conveniently added.

The utility model discloses further set up to: and one end of the rotating shaft, which is close to the transmission gear, is provided with a locking nut, the locking nut is positioned outside the transmission gear and is sleeved on the outer surface of the rotating shaft, and the locking nut is used for fixing the transmission gear.

The utility model discloses further set up to: and one end of the rotating shaft, which is close to the locking nut, is provided with an inner hexagonal fixing groove, so that the tool apron and the tool handle can be assembled and disassembled conveniently.

The utility model discloses further set up to: one side of the locking nut is also provided with a locking threaded hole which directly supports the rotating shaft, and the locking nut is convenient to fixedly connect with the rotating shaft through a screw.

To sum up, compare with prior art, the utility model discloses following beneficial effect has: the utility model discloses a quick change lock tooth formula CNC lathe mills blade holder comprises blade holder and the handle of a knife of locating blade holder one end, a structure is simple, and the design is reasonable, wherein, the blade holder includes the sleeve, the apparatus further comprises a rotating shaft, drive gear and fastener, inside hollow sleeve is used for bearing each part of blade holder, locate the inside pivot of sleeve and transmit moment to the handle of a knife under drive gear's drive, the both ends of pivot are equipped with the bearing, the convenience rotates for the sleeve, the one end of keeping away from drive gear in the pivot is equipped with the fastener that is used for fixed handle of a knife, blade holder and the handle of a knife through the fastener connection, it is higher and change handle of a knife speed faster to connect the.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a milling cutter seat of a quick-change tooth-locking CNC lathe provided by an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a milling cutter seat of a quick-change tooth-locking CNC lathe provided by an embodiment of the present invention;

fig. 3 is a schematic view of another internal structure of a milling cutter seat of a quick-change tooth-locking CNC lathe provided by an embodiment of the present invention;

fig. 4 is a schematic perspective view of a tool holder according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of another direction of the tool holder according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a knife handle provided by the embodiment of the present invention.

Reference numerals: 1. a tool apron; 11. a sleeve; 12. a rotating shaft; 121. an inner hexagonal fixing groove; 13. a bearing; 14. a transmission gear; 15. a fastener; 151. installing blind holes; 152. positioning the surface; 153. positioning holes; 16. a mounting seat; 161. mounting holes; 162. an oil through hole; 17. locking the screw cap; 171. locking the threaded hole; 2. A knife handle; 21. a connector; 22. a positioning member; 221. a handle positioning surface; 222. a handle positioning post; 223. and locking the screw rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments, it is to be understood that the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.

The utility model provides a quick change lock tooth formula CNC lathe mills blade holder, as shown in fig. 1-6, comprises blade holder 1 and the handle of a knife 2 of locating blade holder 1 one end, and its blade holder 1 includes: the sleeve 11 is a cylindrical structure with a hollow interior and is used for bearing various parts of the tool apron 1; the rotating shaft 12 is arranged in the sleeve 11, is rotatably connected with the sleeve 11 through bearings 13 arranged at two ends of the rotating shaft and is used for transmitting torque to the cutter handle 2; the transmission gear 14 is sleeved at one end of the rotating shaft 12 and keeps a gap with the sleeve 11, and is used for being externally connected with the CNC lathe and driving the rotating shaft 12 to rotate; wherein, a fastener 15 is arranged at one end of the rotating shaft 12 far away from the transmission gear 14 and used for fixing the knife handle 2.

In the implementation process, the rotating shaft 12 supported in the sleeve 11 through the bearing 13 is driven by the transmission gear 14 to rotate, and the tool shank 2 connected with the rotating shaft 12 through the fastener 15 is also driven by the driving gear 14, wherein the driving gear 14 is externally connected with a CNC lathe, and the CNC lathe is used as an initial power source.

It should be noted that the bearings 13 are disposed at two ends of the rotating shaft 12, each end is configured with two bearings 13 for enhancing the rotating smoothness of the rotating shaft 12 in the sleeve 11, and a bearing seal ring (not shown) is further disposed outside the bearings 13 at two ends for sealing the bearings 13.

As shown in fig. 1 and fig. 6, the tool holder 2 is composed of a connector 21 and a positioning member 22, the connector 21 is made of high-speed steel and is used for externally connecting a milling cutter, the positioning member 22 is disposed at one end of the connector 21 and is used for being fastened and connected with the tool holder 1, and the connector 21 and the positioning member 22 are integrally cast.

In the specific implementation process, the structure of the connector 21 for the external milling cutter is different, the specific structure of the connector 21 is determined by the type of the external milling cutter, the connector 21 and the positioning piece 22 which are integrally cast increase the overall firmness of the cutter handle 2, and the service life of the cutter handle 2 can be ensured in the high-strength milling operation.

As shown in fig. 1 to 6, the positioning member 22 includes: the cutter handle positioning surface 221 is arranged at one end of the connector 21, is arranged in a plane and is used for positioning the cutter handle 2; the handle positioning column 222 is arranged at one end, close to the handle positioning surface 221, of the connector 21, is arranged in a cylindrical shape, and is used for positioning the handle 2; locking screw 223, locate handle of a knife reference column 222 the one end of keeping away from handle of a knife locating surface 221, its surface is equipped with the screw thread, and further, fastener 15 includes: the mounting blind hole 151 is formed in the top end of the rotating shaft 12 and is in threaded fastening connection with the locking screw 223; the positioning surface 152 is arranged at one end, close to the mounting blind hole 151, of the rotating shaft 12 and is arranged in a plane, and the positioning surface 152 is abutted to the cutter handle positioning surface 221; the positioning hole 153 is arranged at one end, close to the positioning surface 152, in the mounting blind hole 151, and is a circular hole, and the inner wall of the positioning hole 153 is abutted to the outer wall of the handle positioning column 222.

As can be seen from the above, in the process of connecting the tool apron 1 and the tool shank 2, the positioning member 22 and the fastening member 15 are mutually matched, firstly, the installation blind hole 151 and the locking screw 223 are tightly connected through threads to fix the tool shank 2 on the tool apron 1, secondly, the inner wall of the positioning hole 153 is abutted with the outer wall of the handle positioning post 222, the cylindrical body is provided with the handle positioning post 222 which is tightly contacted with the positioning hole 153 with zero gap, namely, the cutter handle 2 is preliminarily positioned, the connection precision of the cutter holder 1 and the cutter handle 2 is ensured, and finally, the positioning surface 152 is abutted against the cutter handle positioning surface 221, which are both arranged in a plane, the two are tightly contacted with each other, a gap is zero, namely, the depth positioning is carried out on the tool holder 2, the connection precision and the tightness of the tool holder 1 and the tool holder 2 are ensured again, therefore, the connection precision of the tool apron 1 and the tool holder 2 is extremely high, the milling error is small, and the purpose of high-quality and high-precision milling operation is achieved.

It should be noted that, as shown in fig. 3 and fig. 4, the positioning hole 153 may be a tapered hole, the handle positioning column 222 may be a tapered body, on the premise of this setting, the positioning hole 153 is matched with the handle positioning column 222, the inner wall of the positioning hole 153 abuts against the outer wall of the handle positioning column 222, that is, by fitting the tapered surfaces of the two, the connection precision of the tool apron 1 and the handle 2 is ensured, it can be known in actual assembly that the matching connection of the tapered setting has a better degree of engagement in precision, so as to meet the requirement of higher connection precision.

As shown in fig. 1 or fig. 4, the tool post further includes an installation seat 16, which is disposed at one end of the sleeve 11 and is integrally formed with the sleeve 11, and is used for fixedly connecting the tool post 1 with a CNC lathe, and the integrally formed design meets the overall quality requirement of the tool post 1, and improves the working strength of the tool post 1.

In the specific implementation process, four vertex angles at one end of the mounting seat 16 are provided with mounting holes 161 for fastening and connecting with a CNC lathe through bolts, which facilitates the fixed connection of the tool apron 1 and the CVC lathe.

As shown in fig. 1 or fig. 4, an oil through hole 162 is formed at one side of the mounting seat 16, and one end of the oil through hole 162 directly abuts against the rotating shaft 12, and is used for adding lubricating oil for lubricating and cooling the tool holder 1, so as to reduce the temperature inside the tool holder 1 and the temperature of the rotating shaft 12, and prolong the service life of the tool holder 1.

As shown in fig. 5, a locking nut 17 is disposed at one end of the rotating shaft 12 close to the transmission gear 14, the locking nut 17 is located at an outer side of the transmission gear 14 and sleeved on an outer surface of the rotating shaft 12 to fix the transmission gear 14, the locking nut 17 is disposed in a circular ring shape, wherein a locking threaded hole 171 directly abutting against the rotating shaft 12 is further disposed at one side of the locking nut 17, which facilitates the locking nut 17 to be fixedly connected with the rotating shaft 12 through a screw, so that the transmission gear 14 is connected and fastened without play when transmitting torque on the rotating shaft 12.

As shown in fig. 5, the hexagonal socket head fixing groove 121 has been seted up to the one end of pivot 12 that is close to lock nut 17, when changing milling cutter because of the work needs, need carry out the dismantlement of blade holder 1 and handle of a knife 2 and reinstall, sets up the one end at pivot 12 because of installation blind hole 151, so arrange the hexagonal socket head fixing groove 121 in through allen wrench, guarantee that pivot 12 is static to handle of a knife 2 and blade holder 1 separation realize the purpose of quick replacement handle of a knife 2.

The working principle is as follows: in the assembling process of blade holder 1 and handle of a knife 2, it is fixed through threaded connection by installation blind hole 151 and locking screw 223, the inner wall through locating hole 153 is supported with the outer wall of handle of a knife reference column 222 and is come preliminary location, realize final location through locating surface 152 and handle of a knife locating surface 221 butt, guarantee blade holder 1 and handle of a knife 2's connection precision, in the dismantlement in-process of blade holder 1 and handle of a knife 2, through external tool, arrange in hexagon socket head fixed slot 121 if allen spanner, make pivot 12 static, then rotatory handle of a knife 2, make locking screw 223 break away from installation blind hole 151, reach the purpose of quick replacement handle of a knife 2, and the work efficiency is improved.

To sum up, the utility model discloses following beneficial effect has: the utility model uses the sleeve 11 to bear each part of the tool apron 1, wherein, the mounting seat 16 formed integrally with the sleeve 11 is fixedly connected with the CNC lathe through the mounting holes 161 arranged at the four top corners of one end of the mounting seat for fixing the tool apron 1, one side of the mounting seat 16 is also provided with an oil through hole 162 convenient for adding lubricating oil for cooling and lubricating the rotating shaft 12, the transmission gear 14 is used for externally connecting the CNC lathe and transmitting torque to the rotating shaft 12, and is provided with a lock nut 17 for preventing the transmission gear 14 from moving, the fastening piece 15 arranged at one end of the rotating shaft 12 far away from the transmission gear 14 is matched with the positioning piece 22 forming the tool shank 2 to improve the connection precision of the tool apron 1 and the tool shank 2, the specific assembly relation please refer to the inner hexagon fixing groove 121 for static rotating shaft 12, which is convenient for dismounting and replacing the tool shank 2, thereby, the problem that the connection mode of the, the time for replacing the tool shank 2 is long, the efficiency is low, the connection precision of the tool shank and the tool shank is low, the milling error is large, and the milling processing with high quality and high precision is influenced.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides a quick change lock tooth formula CNC lathe mills blade holder, comprises blade holder and the handle of a knife of locating blade holder one end, its characterized in that, the blade holder includes:

the sleeve is of a cylindrical structure with a hollow interior and is used for bearing all parts of the cutter holder;

the rotating shaft is arranged in the sleeve, is rotatably connected with the sleeve through bearings arranged at two ends of the rotating shaft and is used for transmitting torque to the tool holder;

the transmission gear is sleeved at one end of the rotating shaft, keeps a gap with the sleeve and is externally connected with a CNC lathe and drives the rotating shaft to rotate;

and a fastener is arranged at one end of the rotating shaft, which is far away from the transmission gear, and is used for fixing the knife handle.

2. The milling cutter holder of a quick-change tooth-locking CNC lathe as claimed in claim 1, wherein the cutter holder is composed of a connector and a positioning member, the connector is made of high-speed steel and used for externally connecting a milling cutter, the positioning member is arranged at one end of the connector and used for being tightly connected with the cutter holder, and the connector and the positioning member are integrally cast.

3. The quick-change tooth-locking CNC lathe milling cutter seat of claim 2, characterized in that the positioning member comprises:

the cutter handle positioning surface is arranged at one end of the connector, is arranged in a plane and is used for positioning the cutter handle;

the handle positioning column is arranged at one end, close to the handle positioning surface, of the connector, is arranged in a cylindrical or conical shape and is used for positioning the handle;

the locking screw is arranged at one end, far away from the cutter handle positioning surface, of the cutter handle positioning column, and threads are arranged on the outer surface of the locking screw.

4. The quick-change tooth-locking CNC lathe milling insert seat of claim 3 wherein the fastener comprises:

the mounting blind hole is formed in the top end of the rotating shaft and is fixedly connected with the locking screw through threads;

the positioning surface is arranged at one end, close to the mounting blind hole, of the rotating shaft and is arranged in a plane, and the positioning surface is abutted to the cutter handle positioning surface;

the positioning hole is arranged at one end, close to the positioning surface, in the mounting blind hole and is arranged in a circular hole or a conical hole, and the inner wall of the positioning hole is abutted to the outer wall of the cutter handle positioning column.

5. The milling insert seat of a quick-change tooth-locking CNC lathe as claimed in claim 4, further comprising a mounting seat formed at one end of the sleeve and integrally formed with the sleeve for fixedly connecting the insert seat to a CNC lathe.

6. The milling cutter holder of a quick-change tooth-locking CNC lathe as claimed in claim 5, wherein four corners of one end of the mounting seat are provided with mounting holes for fastening connection with the CNC lathe through bolts.

7. The milling cutter seat of a quick-change tooth-locking CNC lathe as claimed in claim 6, wherein an oil through hole is opened on one side of the mounting seat, and one end of the oil through hole is directly abutted against the rotating shaft, so that lubricating oil for lubricating and cooling the cutter seat can be added conveniently.

8. The milling cutter seat of a quick-change tooth-locking type CNC lathe as claimed in claim 7, wherein a locking nut is provided at one end of the rotating shaft close to the transmission gear, the locking nut is located at the outer side of the transmission gear and sleeved on the outer surface of the rotating shaft, and the locking nut is used for fixing the transmission gear.

9. The milling cutter holder of a quick-change tooth-locking type CNC lathe as claimed in claim 8, wherein an end of the rotating shaft near the locking nut is provided with a hexagon socket head fixing groove, so as to facilitate assembly and disassembly of the cutter holder and the cutter handle.

10. The milling cutter seat of claim 8, wherein one side of the locking nut is further provided with a locking threaded hole directly against the spindle, which facilitates the locking nut to be fixedly connected with the spindle by a screw.