CN113477999A

CN113477999A - Carbide milling cutter chuck frock

Info

Publication number: CN113477999A
Application number: CN202110794773.1A
Authority: CN
Inventors: 王辰; 杨家伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-14
Filing date: 2021-07-14
Publication date: 2021-10-08

Abstract

The invention relates to the technical field of milling cutter tools, in particular to a hard alloy milling cutter chuck tool, which comprises a milling cutter body consisting of a cutter handle, a spring clamp, a cutting tool and a locking nut, wherein the spring clamp is formed by eight groups of elastic blocks which are circularly distributed and integrally formed, an expansion joint is arranged between every two adjacent elastic blocks, a clamping assembly is arranged on the inner surface of the spring clamp, the number of the clamping assemblies is sixteen, every two clamping assemblies are in one group and are distributed corresponding to the elastic block in the single group, a linking assembly is arranged on the inner surface of the clamping assembly, and a butt joint groove which is linked and clamped with the linking assembly is arranged on the annular side surface of the tail end of the cutting tool. Utilize fixed block contact handle of a knife rear end inner wall of mounting groove in the drive assembly to further through the extruded article constantly deepening the activity inslot portion, thereby utilize both inclined planes extrusion and then drive the grip block to shift in the extension groove and stretch out fixed to sword tail end centre gripping region centre gripping, this structure possesses effectual centre gripping fixed effect, increases the stability behind the sword centre gripping on the basis based on traditional spring clamp.

Description

Carbide milling cutter chuck frock

Technical Field

The invention relates to the technical field of milling cutter tools, in particular to a hard alloy milling cutter chuck tool.

Background

A milling cutter is a rotating tool with one or more cutter teeth for milling. When in work, each cutter tooth cuts off the allowance of the workpiece in sequence and intermittently. The milling cutter is mainly used for processing planes, steps, grooves, forming surfaces, cutting workpieces and the like on a milling machine;

the existing vertical milling cutter is mostly made of alloy materials and mainly comprises a cutting tool, a cutter handle body, a nut and a spring clamp (also known as a collet chuck), the vertical milling cutter is assembled and fixed on a numerical control machine tool in a combined mode, and the cutter is driven to mill a mold through numerical control.

The prior patent (publication number: CN210649509) relates to an end mill chuck tool for a boring machine, and relates to the field of end mill chucks. The end milling cutter chuck tool for the boring machine comprises a chuck body, wherein a transition sleeve is installed on one side of the chuck body, a screw is arranged on one side of the transition sleeve, and a bolt is installed on one side of the screw. This an end milling cutter chuck frock for boring machine can overlap the milling cutter cylinder handle of the end milling cutter one end of different models tightly through spring housing cooperation sleeve, screw up the nut can, convenient to use, easy operation, only need change the end milling cutter of different models in the course of working can, need not to change the chuck body, has greatly promoted production efficiency, has practiced thrift the valuable production time.

The existing patent (No. CN212599193U) discloses a hard alloy welding thread end mill, which solves the defects that the position of the milling cutter is inconvenient to adjust, the milling cutter is easy to fall off and is dangerous and the milling cutter is easy to break in the prior art, and comprises an installation rod, a handle body, a spring clamp, a locking nut and a tool bit, wherein a positioning boss and a positioning convex ring are arranged at the center of one end of the tool bit, which is close to the installation rod, a first positioning groove and a second positioning groove are arranged at one end of the installation rod, the spring clamp is sleeved on the outer side of the installation rod, the spring clamp is inserted in the locking nut, the locking nut is in threaded connection with the handle body, a lantern ring is sleeved at one end of the installation rod, which is close to the tool bit, telescopic rods are fixed on two sides of the lantern ring, an installation part is arranged at one end of the telescopic rod, which is far away from the lantern ring, a scale mark is arranged on the telescopic rod, so as to adjust the upper position and the lower position of the milling cutter, and can play spacing effect, the security is high to milling cutter.

1. The spring clamp is a main connecting workpiece for connecting the cutting tool and the tool shank body, the cutting tool is fastened inside the tool shank body by matching a nut, and a conical area at the upper end of the spring clamp is pressed by a conical groove arranged in the tool shank body to shrink so as to achieve the purpose of locking, clamping and fixing the cutting tool;

2. regardless of the ER nut or the SK nut, the cutter hole formed in the head of the ER nut or the SK nut is large, so that the waterproof performance and the dustproof effect of the nut are poor. Because a gap exists between the nut and the collet chuck, some fine cutting scraps and dust often enter the groove of the collet chuck or the contact surface of the collet chuck and the tool shank through the gap in the use process of the tool, so that the assembly precision and the motion balance of the tool shank, the collet chuck and the nut are influenced, the contact surface of the collet chuck and the tool shank is accelerated to be abraded, and the service life of the locking tool and the service life of the tool shank are finally shortened.

Therefore, the fixture for the hard alloy milling cutter chuck is provided.

Disclosure of Invention

The invention aims to provide a hard alloy milling cutter chuck tool to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a hard alloy milling cutter chuck tool comprises a milling cutter main body consisting of a cutter handle, a spring clamp, a cutting tool and a locking nut, wherein the spring clamp is formed by eight groups of elastic blocks in a circular distribution and integrated mode, expansion joints are arranged between the adjacent elastic blocks, clamping assemblies are arranged on the inner surface of the spring clamp, the clamping assemblies are sixteen, every two clamping assemblies are in one group and are distributed corresponding to the elastic blocks in a single group, linking assemblies are arranged on the inner surface of the clamping assemblies, butt joint grooves which are linked and clamped with the linking assemblies are formed in the annular side face of the tail end of the cutting tool, a sealing assembly is arranged at the expansion joint at the front end of the spring clamp, a driving assembly is arranged at the rear end of the spring clamp, the spring clamp is arranged behind the locking nut, the tail end of the cutting tool is inserted into the spring clamp and is inserted into the corresponding mounting groove in the cutter handle, the locking nut is in threaded connection with the cutter handle to push the spring clamp to move backwards and further extrude a conical spring clamp through the conical mounting groove in the cutter handle, so that the elastic deformation and contraction of the elastic clamp the tail end of the cutting tool;

the clamping assembly comprises a movable groove and an extension groove, the movable groove is formed in the elastic block, the extension groove and the movable groove are vertically formed and distributed in an L-shaped structure, the upper end of the movable groove is in an opening shape, the opening of the extension groove is located on the inner surface of the elastic block, the interior of the extension groove is movably connected with the clamping block, the left side of the movable groove is vertically provided with a first sliding groove, the left side of the extrusion piece is fixed with a first sliding block at a position corresponding to the movable groove, and the extrusion piece slides in the movable groove in a vertical displacement mode through the first sliding groove and the first sliding block;

the driving component comprises sixteen fixing blocks, wherein every two fixing blocks are in a group and respectively correspond to a single group of elastic blocks, every two adjacent fixing blocks are fixedly connected through the elastic pieces, the elastic pieces are in an X-shaped design, the sixteen fixing blocks are in circular distribution and are arranged at the rear ends of spring clamps, the front ends of the fixing blocks are fixedly connected with the extruding pieces, the front ends of the extruding pieces extend into the movable groove from the opening of the movable groove, the contact surfaces of the extruding pieces and the clamping blocks are in an inclined design of 10-25 degrees, the clamping blocks are far away from the outer surface of one side of the extruding pieces and are fixedly connected with the linking component, the fixing blocks in the driving component are utilized to contact the inner wall of the rear end of the mounting groove in the tool holder and further continuously penetrate into the movable groove through the extruding pieces, and the two inclined planes are utilized to extrude to drive the clamping blocks to move and extend out in the extending groove so as to clamp and fix the tail end clamping area of the cutting edge tool, and further, the connecting component is correspondingly connected with the annular side surface butt joint groove of the cutting tool, so that the axial displacement friction generated by high rotation in the subsequent use process of the cutting tool is reduced.

Preferably, the joining assembly comprises two sets of butt-joint blocks, jacking blocks, elastic sheets, clamping grooves, guide grooves, mounting cavities and extrusion springs, the butt-joint blocks are symmetrically distributed and fixed on one side face of the clamping block, the two butt-joint blocks are not in contact, the adjacent faces of the two butt-joint blocks are provided with the guide grooves and the mounting cavities, the guide grooves are communicated with the mounting cavities, the mounting cavities are positioned at the left ends of the guide grooves, jacking blocks are arranged between the two guide grooves, the extrusion springs are arranged in the mounting cavities, the right ends of the extrusion springs are connected with the jacking blocks, two sides of the inner surface of each guide groove are designed in a relatively inclined mode and matched with the jacking blocks, the two butt-joint blocks are designed in an isosceles trapezoid structure and are composed of high-toughness metal, the opposite faces of the two butt-joint blocks are fixedly connected with the elastic sheets, and the elastic sheets are distributed in four sets at equal intervals, the inner surface of the butt joint groove is provided with a clamping groove corresponding to the elastic sheet, and the elastic sheet is designed to be L-shaped.

Preferably, displacement groove and displacement piece are all provided with to the roof pressure piece left and right sides and guide way contact surface, and both ends are closed about the displacement groove, the displacement piece is fixed with the roof pressure piece side, and the displacement groove is parallel to be seted up in the guide way center, and the displacement piece is the right angle type and distributes to with displacement groove matching sliding connection.

Preferably, seal assembly includes three and the spout of slider three, silica gel gasbag, reset spring, both sides all set up three and the spout three of slider about the internal surface of extending groove, three are connected with the grip block of slider, and three setups of spout are in with the extending groove inner wall, the grip block passes through three and the spout three of slider and the sliding displacement of extending groove direction, is located three left sides of slider of extending groove internal surface bottom set up reset spring, and the right side sets up the silica gel gasbag, the reset spring both ends are connected fixedly with three left end inner walls of spout and extruded article respectively, the silica gel gasbag both ends splice fixedly with three right-hand member inner walls of spout and extruded article respectively.

Preferably, the seal assembly further comprises an air passage and an expansion membrane, the bottom end of the inner surface of the expansion joint is provided with a notch, the expansion membrane is embedded in the notch, the left end of the expansion membrane is fixedly connected with the notch in a splicing manner, the air passage is formed at the three lower sides of the sliding groove, the upper end of the air passage is communicated with the silica gel air bag, and the lower end of the air passage is communicated with the expansion membrane.

Preferably, the adjacent inclined plane of extruded article and grip block is provided with gyro wheel and spout two respectively, three rotation groove has been seted up to extruded article inclined plane lower extreme equidistance, and rotates inslot portion through pivot fixedly connected with gyro wheel, the quantity of spout two is three groups, equidistance parallel distribution and grip block inclined plane, the gyro wheel is arranged in middle spout two, and bilateral symmetry is provided with slider two, two around the gyro wheel slider two is fixed with the extruded article, two slider two corresponds and sliding connection with front and back both sides spout two respectively.

Compared with the prior art, the invention has the beneficial effects that:

1. the driving assembly and the clamping assembly are added into the device and are matched with each other when in use, the spring clamp is pushed to move backwards through the threaded connection of the locking nut and the tool holder, the conical spring clamp is further extruded through the conical installation groove in the tool holder, the elastic deformation of the conical spring clamp is contracted to clamp and fix the tail end of the cutting tool, the fixed block in the driving assembly is utilized to contact the inner wall of the rear end of the installation groove in the tool holder, the fixed block further penetrates into the movable groove continuously through the extrusion piece, the two inclined planes are utilized to extrude the clamping block to move and extend in the extension groove, so that the tail end clamping area of the cutting tool is clamped and fixed, the structure has an effective clamping and fixing effect, and the stability of the cutting tool after clamping is improved on the basis of the traditional spring clamp;

2. by adding the connecting component on the basis of the clamping component, in the process of driving the clamping component to clamp and fix the tail end of the cutting tool, the connecting component is further utilized to be correspondingly connected with the annular side surface butt joint groove of the cutting tool, so that the axial displacement caused by high rotation in the subsequent use process of the cutting tool is reduced, the stability of the cutting tool is improved, and the abrasion degree with a jacket is reduced;

3. through adding seal assembly in the device, on the basis based on drive assembly and centre gripping subassembly, further utilize three displacement compression silica gel airbags of lower extreme slider in centre gripping piece displacement process in the centre gripping subassembly, utilize air flue and trachea with gas delivery in the zhu expansion film for the expansion film inflation grow and then airtight spring clamp front end expansion joint department, make it mix the cutting fluid entering when reducing the cutting in follow-up use, influence spring clamp normal life.

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 description of the embodiments or 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 other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an overall structural view of the present invention;

FIG. 2 is a cross-sectional view of the overall structure of the present invention;

FIG. 3 is a combination view of the spring clamp of the present invention with a drive mechanism and clamping mechanism;

FIG. 4 is a left side view of the spring clip of the present invention;

FIG. 5 is a top view of the spring clip of the present invention;

FIG. 6 is an enlarged view at C of FIG. 5 of the present invention;

FIG. 7 is an exploded view of the docking block and top press block of the present invention;

FIG. 8 is a cross-sectional view taken at A-A of FIG. 5 in accordance with the present invention;

FIG. 9 is a cross-sectional view taken at C-C of FIG. 8 in accordance with the present invention;

FIG. 10 is an enlarged view at D of FIG. 8 of the present invention;

FIG. 11 is a top view of the drive assembly of the present invention;

fig. 12 is a cross-sectional view at B-B of fig. 11 of the present invention.

Description of reference numerals:

1. a knife handle; 11. a spring clip; 12. a cutting tool; 121. a butt joint groove; 13. locking the nut; 14. an expansion joint;

2. a clamping assembly; 21. a clamping block; 22. a movable groove; 221. an extension groove; 23. a first sliding chute; 24. an elastic block; 211. a second chute;

3. a drive assembly; 31. an extrusion; 32. an elastic member; 33. a fixed block; 311. a first sliding block; 312. a rotating groove; 313. a roller; 314. a second sliding block;

4. an engagement assembly; 41. a butt joint block; 42. pressing the block; 421. a displacement block; 43. an elastic sheet; 44. a clamping groove; 45. a guide groove; 451. a displacement slot; 46. a mounting cavity; 47. a compression spring;

5. a seal assembly; 51. a third sliding block; 511. a third chute; 52. a silica gel air bag; 53. a return spring; 54. an airway; 55. an intumescent film.

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 to 12, the present invention provides a technical solution:

a hard alloy milling cutter chuck tool comprises a milling cutter body consisting of a cutter handle 1, a spring clamp 11, a cutting tool 12 and a locking nut 13, wherein the spring clamp 11 is formed by eight groups of elastic blocks 24 which are circularly distributed and integrally formed, expansion joints 14 are arranged between the adjacent elastic blocks 24, a clamping assembly 2 is arranged on the inner surface of the spring clamp 11, the clamping assemblies 2 are sixteen, every two clamping assemblies 2 are in one group and are correspondingly distributed with the elastic blocks 24, a linking assembly 4 is arranged on the inner surface of the clamping assembly 2, a butt joint groove 121 which is linked and clamped with the linking assembly 4 is arranged on the annular side surface of the tail end of the cutting tool 12, a sealing assembly 5 is arranged at the expansion joint 14 at the front end of the spring clamp 11, a driving assembly 3 is arranged at the rear end of the spring clamp 11, the tail end of the cutting tool 12 is inserted into the spring clamp 11 and is inserted into a corresponding mounting groove in the cutter handle 1 after the spring clamp 11 is installed on the locking nut 13, the locking nut 13 is in threaded connection with the tool shank 1 to push the spring clamp 11 to move backwards and further extrude the conical spring clamp 11 through a conical mounting groove in the tool shank 1, so that the spring clamp elastically deforms and contracts to clamp and fix the tail end of the cutting tool 12;

the clamping assembly 2 comprises a movable groove 22 and an extension groove 221 which are arranged inside an elastic block 24, the movable groove 22 is vertically arranged inside the elastic block 24, the extension groove 221 and the movable groove 22 are vertically arranged and distributed in an L-shaped structure, the upper end of the movable groove 22 is in an open shape, the opening of the extension groove 221 is positioned on the inner surface of the elastic block 24, the interior of the extension groove 221 is movably connected with the clamping block 21, a first sliding groove 23 is vertically arranged on the left side of the movable groove 22, a first sliding block 311 is fixed on the left side of an extrusion piece 31 in a position corresponding to the movable groove 22, and the extrusion piece 31 can vertically slide in the movable groove 22 through the first sliding groove 23 and the first sliding block 311;

drive assembly 3 includes extruded article 31, elastic component 32, fixed block 33 is sixteen, and two liang are a set of respectively and singly organize elastic block 24 to correspond, adjacent two connect fixedly by elastic component 32 between the fixed block 33, elastic component 32 is X type design, sixteen fixed block 33 is circular distribution and 11 rear ends of spring clamp, the front end fixedly connected with extruded article 31 of fixed block 33, and extruded article 31's front end extends to movable groove 22 inside by movable groove 22 opening, extruded article 31 is 10 to 25 degrees slope designs with grip block 21 contact surface, grip block 21 keeps away from extruded article 31 one side outer fixed surface and connects link up subassembly 4, utilizes extruded article 33 contact handle of a knife 1 interior mounting groove rear end inner wall in drive assembly 3 to further through the continuous deep activity inslot 22 inside of going deep, utilize both inclined planes extrusion and then drive grip block 21 displacement in extending groove 221 to stretch out thereby to cutting tool 12 tail end clamping area region The cutting tool 12 is clamped and fixed, and further, the connecting component 4 is correspondingly connected with the annular side surface butt joint groove 121 of the cutting tool 12, so that the axial displacement friction generated by high rotation in the subsequent use process of the cutting tool 12 is reduced.

As an embodiment of the present invention, as shown in fig. 6 and 7, the joining assembly 4 includes two sets of butt-joint blocks 41, a top pressing block 42, an elastic sheet 43, a fastening groove 44, a guide groove 45, a mounting cavity 46, and an extrusion spring 47, the butt-joint blocks 41 are symmetrically distributed and fixed on one side of the clamping block 21, the two butt-joint blocks 41 are not in contact with each other, the adjacent surfaces of the two butt-joint blocks are respectively provided with the guide groove 45 and the mounting cavity 46, the guide groove 45 is communicated with the mounting cavity 46, the mounting cavity 46 is located at the left end of the guide groove 45, the top pressing block 42 is arranged between the two guide grooves 45, the extrusion spring 47 is arranged inside the mounting cavity 46, the right end of the extrusion spring 47 is connected with the top pressing block 42, two sides of the inner surface of the guide groove 45 are designed to be relatively inclined and matched with the top pressing block 42, the two butt-joint blocks 41 are designed in an isosceles trapezoid structure, the butt joint structure is made of high-toughness metal, the opposite surfaces of the two butt joint blocks 41 are fixedly connected with elastic sheets 43, the elastic sheets 43 are distributed in four groups at equal intervals, the inner surfaces of the butt joint grooves 121 and the elastic sheets 43 are provided with clamping grooves 44 in corresponding positions, and the elastic sheets 43 are designed in an L-shaped structure.

When the cutting tool 12 is initially installed inside the spring clamp 11, the annular side surface butt-joint groove 121 of the cutting tool 12 corresponds to the butt-joint block 41, the position is initially fixed, then the locking nut 13 is horizontally screwed to slowly shrink the spring clamp 11, so that the butt-joint block 41 is completely inserted into the butt-joint groove 121 on the surface of the cutting tool 12 until the top pressing block 42 contacts the inner wall of the butt-joint groove 121, the top pressing block 42 is forced to move in the guide groove 45 along with the increase of the clamping extrusion pressure degree of the spring clamp 11, the extrusion spring 47 is compressed, the inclined surfaces of the guide groove 45 and the inclined surfaces of the two sides of the top pressing block 42 are pressed downwards, so that the butt-joint blocks 41 on the two sides are expanded, the opening is expanded outwards, at the moment, the elastic sheet 43 is inserted into the clamping groove 44 in a displacement mode, so that the butt-joint block 41 is firmly locked and fixed in the butt-joint groove 121, and is used for being matched with the clamping block 21 to increase the clamping and fixing work of the cutting tool 12 by the elastic clamp as a whole, the sliding of the cutting tool 12 in the subsequent use process is reduced, and the eccentric abrasion with the spring clamp 11 is reduced.

As an embodiment of the present invention, as shown in fig. 6 and 7, displacement grooves 451 and displacement blocks 421 are respectively disposed on the contact surfaces of the left and right sides of the pressing block 42 and the guide groove 45, the upper and lower ends of the displacement grooves 451 are closed, the displacement blocks 421 are fixed to the side surfaces of the pressing block 42, the displacement grooves 451 are parallelly disposed in the center of the guide groove 45, and the displacement blocks 421 are distributed in a right-angle shape and are slidably connected to the displacement grooves 451 in a matching manner.

When the device works, after the use is finished, the locking nut 13 is unscrewed, the spring clamp 11 is restored, the extrusion force degree of the jacking pressing block 42 gradually disappears, the jacking pressing block 42 gradually extends outwards under the elastic extrusion action of the extrusion spring 47, the butt joint block 41 is restored, the elastic piece 43 is separated from the clamping groove 44, the butt joint block 41 is completely separated from the surface butt joint groove 121 of the cutting tool 12, the cutting tool 12 is taken down, in order to ensure that the top pressing block 42 can be smoothly displaced and extend in the guide groove 45 in the process, the displacement groove 451 and the guide groove 45 are added in the guide groove 45, so that the movable displacement of the top pressing block 42 has guidance, and can not be separated from the butt-joint block 41, meanwhile, the right-angled triangle structure of the displacement groove 451 and the displacement block 421 can meet the requirement of changing the distance between the abutting block 41 and the top pressing block 42 in the recovery and bracing states, so that the displacement block 421 is always positioned in the guide groove 45.

As an embodiment of the present invention, as shown in fig. 8 and 10, the upper and lower sides of the inner surface of the extension groove 221 are respectively provided with a third slider 51 and a third sliding groove 511, the third slider 51 is connected with the clamping block 21, the third sliding groove 511 is formed in the inner wall of the extension groove 221, the clamping block 21 is guided to slide and move with the extension groove 221 through the third slider 51 and the third sliding groove 511, the left side of the third slider 51 located at the bottom end of the inner surface of the extension groove 221 is provided with a return spring 53, the right side is provided with a silica gel air bag 52, two ends of the return spring 53 are respectively connected and fixed with the inner wall of the left end of the third sliding groove 511 and the extrusion piece 31, and two ends of the silica gel air bag 52 are respectively fixed with the inner wall of the right end of the third sliding groove 511 and the extrusion piece 31 by gluing.

During operation, the third slide block 51 and the third slide groove 511 are also used for stabilizing the displacement process of the clamping block 21 from the inside of the extension groove 221 and avoiding angular deviation or dislocation, so that the third slide block 51 at the bottom end of the clamping block 21 stretches the return spring 53 and extrudes the silica gel air bag 52 to enable the silica gel air bag to move stably in the outward displacement process of the clamping block 21 by utilizing the third slide block 51 and the third slide groove 511, and the elastic block 24 is matched with the spring clamp 11 to clamp and fix the cutting tool 12.

As an embodiment of the present invention, as shown in fig. 10, the sealing assembly 5 further includes an air passage 54 and an expansion film 55, a notch is formed at the bottom end of the inner surface of the expansion joint 14, the expansion film 55 is embedded in the notch, the left end of the expansion film 55 is fixed to the notch by adhesive bonding, the air passage 54 is formed at the lower side of the third sliding groove 511, the upper end of the air passage 54 is communicated with the silica gel air bag 52, and the lower end of the air passage 54 is communicated with the expansion film 55.

During operation, when the clamping block 21 utilizes the third slide block 51 and the third slide groove 511 to move outwards, the third slide block 51 at the bottom end of the clamping block 21 stretches the return spring 53 and extrudes the silica gel air bag 52, air in the silica gel air bag 52 is conveyed to the expansion film 55 through the air duct 54 and the air pipe, the expansion film 55 expands to fill the bottom end of the expansion joint 14, and the phenomenon that the cutting fluid and metal debris generated in the cutting process enter the elastic block 24 of the spring clamp 11 through the expansion joint 14 to influence the use of the spring clamp 11 can be avoided in the subsequent use process.

As an embodiment of the present invention, as shown in fig. 9, the inclined surfaces of the extrusion member 31 adjacent to the clamping block 21 are respectively provided with a roller 313 and two sliding grooves 211, the lower end of the inclined surface of the extrusion member 31 is equidistantly provided with three rotating grooves 312, the rollers 313 are fixedly connected inside the rotating grooves 312 through rotating shafts, the two sliding grooves 211 are three groups, and are equidistantly distributed in parallel with the inclined surfaces of the clamping block 21, the rollers 313 are located in the middle sliding groove two 211, the front side and the rear side of the rollers 313 are symmetrically provided with two sliding blocks 314, the two sliding blocks two 314 are fixed to the extrusion member 31, and the two sliding blocks two 314 are respectively corresponding to and slidably connected with the sliding grooves two 211 on the front side and the rear side.

During operation, the extrusion piece 31 and the inclined plane of the clamping block 21 are used for extrusion, so that the clamping block 21 is driven to move and extend out in the extension groove 221, and the clamping area at the tail end of the cutting tool 12 is clamped and fixed.

The working principle is as follows:

during operation, the locking nut 13 is in threaded connection with the tool holder 1 to push the spring clamp 11 to move backwards and further extrude the conical spring clamp 11 through the conical mounting groove in the tool holder 1, so that the spring clamp is elastically deformed and contracted to clamp and fix the tail end of the cutting tool 12, meanwhile, in the process of screwing and rotating the locking nut 13 to be fixed in the tool holder 1, sixteen groups of annular fixed blocks 33 in the driving assembly 3 are in contact with the inner wall of the rear end of the mounting groove in the tool holder 1 and further force the extruding piece 31 to continuously penetrate into the movable groove 22, because the mounting groove of the spring clamp 11 mounted on the inner wall of the tool holder 1 and the rear end of the spring clamp 11 are in a conical structure, stable elastic contraction is needed among the fixed blocks 33, in the process, uniform elastic contraction can be completed through the elastic sheet 43 designed in an X shape, the diameter of the fixed blocks 33 forming the annular structure is slowly reduced, and in order to ensure that the extruding piece 31 can stably and directionally move in the movable groove 22, therefore, the sliding connection between the first sliding groove 23 and the first sliding block 311 is matched with the guiding sliding of the second sliding groove 211 and the second sliding block 314, so that the extrusion piece 31 is uniformly and stably inserted into the movable groove 22, then the inclined surfaces of the two are used for extrusion, the clamping block 21 is driven to move and extend out in the extending groove 221, and the clamping area at the tail end of the cutting tool 12 is clamped and fixed, in order to reduce the friction resistance between the inclined surfaces, the extrusion piece 31 can smoothly and smoothly drive the clamping block 21 to move through the inclined surfaces, therefore, the rotating groove 312 and the roller 313 are designed for reducing the friction resistance between the two, the structure has an effective clamping and fixing effect, the stability after the cutting tool 12 is clamped is increased on the basis of the traditional spring clamp 11, and in the process of clamping and fixing the tail end of the cutting tool 12 by driving the clamping component 2 according to the extending depth of the extrusion piece 31 in the movable groove 22, further utilize linking subassembly 4 and the corresponding linking of the annular side butt joint groove 121 of cutting tool 12, it produces axial displacement to reduce the follow-up use in-process high rotation of cutting tool 12, improve cutting tool 12 and stabilize, reduce and press from both sides cover degree of wear, on the basis based on drive assembly 3 and centre gripping subassembly 2, further utilize three 51 displacements of lower extreme slider to compress silica gel gasbag 52 in centre gripping piece 21 displacement in centre gripping subassembly 2, utilize air flue 54 and trachea to carry gas among the zhu expansion film 55, make the expansion film 55 inflation grow and then airtight spring clamp 11 front end expansion joint 14 department, make it reduce metal particle mixed cutting liquid entering when cutting in the follow-up use, influence spring clamp 11 normal life.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a carbide milling cutter chuck frock, includes the milling cutter main part of constituteing by handle of a knife (1), spring clamp (11), cutting tool (12), lock nut (13), its characterized in that: the spring clamp (11) is formed by eight groups of elastic blocks (24) in a circular distribution mode, expansion joints (14) are arranged between the elastic blocks (24) in an adjacent mode, a clamping assembly (2) is arranged on the inner surface of the spring clamp (11), sixteen clamping assemblies (2) are arranged, every two clamping assemblies are arranged in a group and distributed correspondingly to the elastic blocks (24), a linking assembly (4) is arranged on the inner surface of the clamping assembly (2), a butt joint groove (121) which is linked and clamped with the linking assembly (4) is formed in the annular side face of the tail end of the cutting tool (12), a sealing assembly (5) is arranged at the expansion joint (14) at the front end of the spring clamp (11), a driving assembly (3) is arranged at the rear end of the spring clamp (11), the tail end of the cutting tool (12) is inserted into the spring clamp (11) and inserted into a corresponding mounting groove in the spring clamp (1), the spring clamp (11) is pushed to move backwards through the threaded connection of the locking nut (13) and the knife handle (1), and the conical spring clamp (11) is further extruded through a conical mounting groove in the knife handle (1), so that the spring clamp is elastically deformed and contracted to clamp and fix the tail end of the cutting tool (12);

the clamping assembly (2) comprises a movable groove (22) and an extension groove (221), the movable groove (22) is vertically formed in the elastic block (24), the extension groove (221) and the movable groove (22) are vertically formed and distributed in an L-shaped structure, the upper end of the movable groove (22) is open, the opening of the extension groove (221) is located in the inner surface of the elastic block (24), the interior of the extension groove (221) is movably connected with the clamping block (21), a first sliding groove (23) is vertically formed in the left side of the movable groove (22), a first sliding block (311) is fixed on the left side of the extrusion piece (31) corresponding to the movable groove (22), and the extrusion piece (31) slides in the movable groove (22) in an up-and-down displacement mode through the first sliding groove (23) and the first sliding block (311);

drive assembly (3) includes extruded piece (31), elastic component (32), fixed block (33) are sixteen, two liang be a set of respectively with single group elastic block (24) correspondence, adjacent two connect fixedly by elastic component (32) between fixed block (33), elastic component (32) are X type design, sixteen fixed block (33) are circular distribution and spring clamp (11) rear end, the front end fixedly connected with extruded piece (31) of fixed block (33), and the front end of extruded piece (31) extends to activity groove (22) inside by activity groove (22) opening, extruded piece (31) and grip block (21) contact surface are 10 to 25 degrees slope design, grip block (21) keep away from extruded piece (31) one side outer surface fixed connection link up subassembly (4), utilize drive assembly (3) in fixed block (33) contact fixed block (1) mounting groove rear end inner wall, and further, the extrusion piece (31) continuously penetrates into the movable groove (22), the inclined surfaces of the extrusion piece and the movable groove are extruded to drive the clamping block (21) to move and extend out in the extension groove (221) so as to clamp and fix the clamping area at the tail end of the cutting tool (12), the connection component (4) is further correspondingly connected with the annular side surface butt joint groove (121) of the cutting tool (12), and axial displacement friction caused by high rotation in the subsequent use process of the cutting tool (12) is reduced.

2. The carbide milling cutter chuck tooling of claim 1, wherein: the splicing assembly (4) comprises butt-joint blocks (41), jacking blocks (42), elastic sheets (43), clamping grooves (44), guide grooves (45), mounting cavities (46) and extrusion springs (47), the number of the butt-joint blocks (41) is two, the butt-joint blocks (41) are symmetrically distributed and fixed on one side surface of the clamping block (21), the two butt-joint blocks (41) are not in contact, the adjacent surfaces of the two butt-joint blocks are provided with the guide grooves (45) and the mounting cavities (46), the guide grooves (45) are communicated with the mounting cavities (46), the mounting cavities (46) are located at the left ends of the guide grooves (45), the jacking blocks (42) are arranged between the two guide grooves (45), the extrusion springs (47) are arranged inside the mounting cavities (46), the right ends of the extrusion springs (47) are connected with the jacking blocks (42), two sides of the inner surfaces of the guide grooves (45) are designed in a relatively inclined mode, and are matched with the jacking blocks (42), two butt joint piece (41) are the design of isosceles trapezoid structure, and it comprises high tenacity metal, two equal fixedly connected with flexure strip (43) in butt joint piece (41) opposite face, and flexure strip (43) are four groups equidistance distribution at least, butt joint inslot (121) internal surface and flexure strip (43) correspond the position and have seted up block groove (44), flexure strip (43) are L type structural design.

3. The carbide milling cutter collet tool of claim 2, wherein: the left side and the right side of the jacking block (42) are respectively provided with a displacement groove (451) and a displacement block (421) on the contact surface with the guide groove (45), the upper end and the lower end of the displacement groove (451) are closed, the displacement block (421) is fixed on the side surface of the jacking block (42), the displacement groove (451) is arranged at the center of the guide groove (45) in parallel, and the displacement block (421) is distributed in a right angle shape and is connected with the displacement groove (451) in a sliding mode in a matching mode.

4. The carbide milling cutter chuck tooling of claim 1, wherein: the sealing component (5) comprises a third sliding block (51), a third sliding groove (511), a silica gel air bag (52) and a return spring (53), the upper side and the lower side of the inner surface of the extension groove (221) are provided with a third slide block (51) and a third slide groove (511), the third sliding block (51) is connected with the clamping block (21), the third sliding groove (511) is arranged in the inner wall of the extension groove (221), the clamping block (21) is guided to slide and move with the extension groove (221) through a third sliding block (51) and a third sliding groove (511), a return spring (53) is arranged on the left side of the third sliding block (51) at the bottom end of the inner surface of the extension groove (221), a silica gel air bag (52) is arranged on the right side, two ends of the return spring (53) are respectively connected and fixed with the inner wall of the left end of the third sliding chute (511) and the extrusion piece (31), and two ends of the silica gel air bag (52) are respectively fixed with the inner wall of the right end of the third sliding chute (511) and the extrusion piece (31) in a gluing way.

5. The carbide milling cutter collet tool of claim 4, wherein: the sealing assembly (5) further comprises an air passage (54) and an expansion film (55), the bottom end of the inner surface of the expansion joint (14) is provided with a notch, the expansion film (55) is embedded in the notch, the left end of the expansion film (55) is fixed to the notch in a bonding mode, the air passage (54) is formed in the lower side of the third sliding groove (511), the upper end of the air passage (54) is communicated with the silica gel air bag (52), and the lower end of the air passage is communicated with the expansion film (55).

6. The carbide milling cutter chuck tooling of claim 1, wherein: extruded article (31) and the adjacent inclined plane of grip block (21) are provided with gyro wheel (313) and spout two (211) respectively, three rotation groove (312) have been seted up to extruded article (31) inclined plane lower extreme equidistance, and rotate inside through pivot fixedly connected with gyro wheel (313) of groove (312), the quantity of spout two (211) is three groups, equidistance parallel distribution and grip block (21) inclined plane, gyro wheel (313) are arranged in middle spout two (211), and gyro wheel (313) bilateral symmetry is provided with slider two (314), two slider two (314) are fixed with extruded article (31), two slider two (314) correspond and sliding connection with front and back both sides spout two (211) respectively.