CN115709304A - Telescopic adjusting type T-shaped milling cutter and fixing assembly thereof - Google Patents

Abstract

The invention relates to the technical field of milling cutter processing equipment, in particular to a telescopic adjusting type T-shaped milling cutter and a fixing assembly thereof, which comprise a main shaft, wherein a threaded column is arranged on the bottom wall of the main shaft, a plurality of secondary limiting grooves are formed in the bottom of the threaded column, a cutter end reinforcing unit for reinforcing a cutter handle port is arranged at the bottom of the main shaft, and a cutter middle reinforcing unit for reinforcing the middle part of a cutter handle is arranged at the bottom of the cutter end reinforcing unit.

Description

Telescopic adjusting type T-shaped milling cutter and fixing assembly thereof

Technical Field

The invention relates to the technical field of milling cutter processing equipment, in particular to a telescopic adjusting type T-shaped milling cutter and a fixing assembly thereof.

Background

The milling cutter is a rotary cutter which is used for milling and provided with one or more cutter teeth, the cutter teeth cut off the allowance of a workpiece intermittently in sequence during working, the milling cutter is mainly used for processing planes, steps, grooves, forming surfaces, cutting off the workpiece and the like on a milling machine, and the T-shaped milling cutter needs to be fixed during the processing process so that the milling cutter can play a role in stabilizing during milling and further improve the processing efficiency of the workpiece.

The existing milling cutter has the following two problems in the use process:

1. the existing milling cutter rod and a spindle are fixed by placing an elastic chuck barrel in a spindle nut, then the milling cutter rod is inserted into the elastic chuck barrel in the spindle nut, then the spindle nut is twisted to a bearing of the spindle by hands, and then the spindle nut is screwed by a spanner, so that the elastic chuck barrel clamps the milling cutter rod, and further the purpose of fixing the milling cutter rod is achieved, but after the milling cutter rod processes a workpiece, the milling cutter rods with different diameters need to be replaced, therefore, a worker replaces the corresponding elastic chuck barrel according to the milling cutter rods with different diameters, and if the elastic chuck barrel is not suitable for storage, the elastic chuck barrel is easy to lose, so that the cost of the elastic chuck barrel is increased, and the processing efficiency is influenced;

2. when the cutter handle is fixed on the main shaft, the milling cutter generates larger friction force in the process of processing a workpiece, and due to the special problem of the milling cutter, the cutter bar is longer in design length, so that the stress difference between the end opening of the cutter handle and the end opening of the milling cutter is too large, the condition that the milling cutter edge and the cutter bar shake is caused, the stability of the milling cutter edge and the cutter bar cannot be ensured, and the processing quality of the workpiece is poor.

Disclosure of Invention

In view of this, the present invention provides a telescopic T-shaped milling cutter and a fixing assembly thereof, which can effectively solve the problems of complex installation of the milling cutter, and the shaking of the milling cutter edge and the cutter bar caused by the large difference between the stress applied to the end of the cutter handle and the stress applied to the end of the milling cutter.

In order to achieve the purpose, the invention provides the following technical scheme: a T-shaped milling cutter fixing assembly comprises a main shaft, wherein a threaded column is mounted on the bottom wall of the main shaft, a plurality of secondary limiting grooves are formed in the bottom of the threaded column, a cutter end reinforcing unit used for reinforcing a cutter handle port is arranged at the bottom of the main shaft, and a cutter middle reinforcing unit used for reinforcing the middle of a cutter handle is arranged at the bottom of the cutter end reinforcing unit;

the tool end reinforcing unit comprises a rotating member, wherein an inner ring gear fluted disc which is protruded is arranged on an inner ring of the rotating member, the upper end and the lower end of the inner ring gear fluted disc are rotatably connected with a reinforcing outer disc, the reinforcing outer disc is rotatably connected with the inner ring of the rotating member, connecting sleeves which are in an annular array are arranged at the upper end and the lower end of the reinforcing outer disc, one side of each connecting sleeve, which is far away from the reinforcing outer disc, is provided with a reinforcing inner disc which is used for penetrating through a tool handle, the middle part of each connecting sleeve is rotatably connected with a long cylindrical gear through a bearing, a penetrating transverse groove which is in an annular array is formed between the reinforcing inner disc and the reinforcing outer disc, a gear rack is arranged in the penetrating transverse groove in a sliding mode and meshed with the long cylindrical gear, one end, close to the reinforcing inner disc, of the long cylindrical gear is provided with an arc pressing member used for pressing the tool handle, the outer side of the rotating member is provided with a driving member used for driving the rotating member to rotate, the upper end and the lower end of the reinforcing outer disc are provided with dustproof members, the top of the reinforcing inner disc is provided with a limiting threaded rod, and the limiting threaded rod penetrates through the secondary limiting groove;

the strengthening unit in the cutter comprises a cavity box, the bottom of the cavity box is in threaded connection with three lifting screw rods, the inner cavity of the cavity box is used for driving a linkage part of the three lifting screw rods to move synchronously, a movable disc is arranged between the lifting screw rods, and an inner ring of the movable disc is rotatably connected with a sleeve disc.

Preferably, the driving part comprises a thread type rotating disc arranged on the outer wall of the rotating part, a bolt type rotating disc is arranged at the top of the thread type rotating disc, and threaded holes matched with the inner ring of the bolt type rotating disc and the outer ring of the threaded column are formed in the inner ring of the bolt type rotating disc and the outer ring of the threaded column.

Preferably, the lateral wall that runs through in the transverse groove installs T type slide rail, the C type slide rail is installed to the one side that the teeth of a cogwheel strip is close to T type slide rail.

Preferably, a notch is formed in one side, away from the reinforcing inner circular disc, of the rack and wheel, a spring telescopic rod is connected to the notch in an internal thread mode, and an arc-shaped piece is installed on one side, away from the rack and wheel, of the spring telescopic rod.

Preferably, the dustproof part is including installing a plurality of first lead screws at circle dish top in the reinforcement, the bottom cover of first lead screw is equipped with first dust guard, threaded connection on the top of first lead screw is gone up to limit threaded rod a plurality of second lead screws are installed to the bottom of circle dish in the reinforcement, the outside cover of circle dish in the reinforcement is equipped with the second dust guard, the outside and the threaded connection that the second dust guard was worn to establish by the one end of second lead screw have a screw thread torsion bar, the circular slot mouth that is used for wearing to establish the handle of a knife is seted up at the middle part of second dust guard.

Preferably, linkage portion is including installing the empty section of thick bamboo disc at cavity incasement chamber middle part, the diapire of cavity case rotates and is connected with first outer lane fluted disc, the inner chamber diapire of cavity case corresponds lift lead screw one side and rotates and is connected with connecting gear, connecting gear and first outer lane fluted disc mesh mutually, cavity incasement chamber and connecting gear fixed connection are worn to establish on the top of lift lead screw, the linkage groove has been seted up on the front end right side of cavity case, the linkage inslot internal rotation is connected with the artifical driving wheel of twisting with second outer lane fluted disc mesh mutually, the below that the cavity case is located artifical driving wheel is provided with and is used for controlling artifical ratchet unit of twisting wheel pivoted.

Preferably, the ratchet unit is including installing in cavity case one side and being located the fixed block of ratchet dish side below, the top of fixed block is rotated and is connected with the clamping head that is used for centre gripping ratchet dish, be connected with reset spring between the right-hand member of clamping head and the cavity case, the clamping head is kept away from one side of cavity case and is installed the pull rod.

The utility model provides a flexible regulation formula T type milling cutter that fixed subassembly of T type milling cutter used, includes milling cutter post and sets up the handle spare at milling cutter post top, the outside of milling cutter post can be dismantled through the bolt and be connected with the T type milling cutter spare that is the annular array, handle spare is including installing the hypomere handle of a knife at milling cutter post top, the cavity lead screw is installed at the top of hypomere handle of a knife, the top of hypomere handle of a knife is provided with the upper segment handle of a knife, the screw wear groove that the cavity lead screw of being convenient for was accomodate is seted up to the bottom of upper segment handle of a knife, the screw is worn to install solid lead screw in the groove, threaded connection between solid lead screw and the cavity lead screw.

Preferably, the top of the upper section of the knife handle is provided with a fixing groove in an annular array, the middle of one side face, away from the reinforcing inner circular disc, of the arc pressing piece is provided with a limiting pressing piece matched with the fixing groove, the top of the upper section of the knife handle is provided with a limiting piece, and the bottom wall of the threaded column is provided with a main limiting groove matched with the limiting piece.

Preferably, the top of the lower section handle is provided with arc-shaped connecting pieces in an annular array, the inner ring of the sleeve disc is provided with through holes for the arc-shaped connecting pieces to penetrate through, and the inner ring of the sleeve disc is positioned between the adjacent through holes to form an arc-shaped groove for pressing the arc-shaped connecting pieces.

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

1. by applying the technical scheme, aiming at the problems encountered when the telescopic adjusting type T-shaped milling cutter and the fixing assembly thereof are used in the prior art, the invention realizes the rotary motion among the inner ring gear fluted disc, the long column gear and the gear tooth strip by arranging the twisting between the bolt type rotating disc and the threaded column, further realizes the purpose of reinforcing the cutter handles with different diameters, and simultaneously realizes the installation or the disassembly between the threaded column and the bolt type rotating disc;

2. by applying the technical scheme, aiming at the problems encountered when the telescopic adjusting type T-shaped milling cutter and the fixing component thereof are used in the prior art, the movable disc drives the sleeve disc to move along the periphery of the cutter handle part by arranging the reinforcing unit in the cutter until the arc-shaped groove on the sleeve disc presses the arc-shaped connecting piece, so that the lower-section cutter handle is pressed and has a limiting effect;

3. by applying the technical scheme of the invention, aiming at the problems encountered when the telescopic adjusting type T-shaped milling cutter and the fixing component thereof are used in the prior art, the first dust guard and the second dust guard are surrounded on the reinforced inner circular disc by the matching of the limiting threaded rod, the first screw rod, the threaded torsion rod and the second screw rod in the dust guard part, so that the dust guard function is achieved, and the installation or the disassembly of the dust guard is convenient.

Drawings

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

FIG. 2 is an exploded view of the overall structure of the present invention;

FIG. 3 is a schematic view of a blade end reinforcement unit of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a partial enlarged view of B in FIG. 3;

FIG. 6 is a view of a reinforcement unit in the knife of the present invention;

FIG. 7 is a top view of a reinforcement unit in the knife of the present invention;

FIG. 8 is an enlarged view of a portion C of FIG. 7;

fig. 9 is an exploded view of the handle member of the present invention.

In the figure:

1. milling a cutter column; 11. a T-shaped milling cutter;

2. a handle member; 20. fixing grooves; 21. an arc-shaped connecting piece; 22. a limiting member; 201. an upper section of a knife handle; 202. a lower section knife handle; 2021. a cavity screw rod; 2022. threading the threads; 2023. a solid lead screw;

3. a main shaft; 31. a threaded post; 32. a primary limit groove; 33. a secondary limiting groove;

4. a cutter end reinforcing unit; 41. a rotating member; 42. an inner ring gear plate; 43. reinforcing the outer disc; 44. connecting sleeves; 45. reinforcing the inner circular disc; 46. a long column gear; 47. a rack and pinion; 470. the transverse groove is penetrated; 48. an arc-shaped pressed piece; 49. limiting a pressing piece; 411. a T-shaped slide rail; 412. a C-shaped slide rail; 413. a notch; 414. a spring telescopic rod; 415. an arcuate member; 421. a bolt-type turntable; 422. a screw-type turntable; 431. a first lead screw; 432. a first dust-proof plate; 433. a limit threaded rod; 434. a second lead screw; 435. a second dust-proof plate; 436. a threaded torsion bar;

5. a knife reinforcing unit; 50. an empty drum disc; 51. a cavity box; 52. a first outer ring gear plate; 53. a connecting gear; 54. a lifting screw rod; 55. moving the disc; 56. a sleeve disk; 57. a through hole; 58. an arc-shaped slot; 511. a second outer ring gear fluted disc; 512. manually twisting the wheel; 5130. a ratchet unit; 513. a ratchet wheel disc; 514. a fixed block; 515. a clamping head; 516. a return spring; 517. a pull rod.

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 9, the present invention provides a technical solution:

the first embodiment is as follows: as shown in fig. 1 to 5, a fixing assembly of a T-shaped milling cutter comprises a main shaft 3, a threaded column 31 is installed on the bottom wall of the main shaft 3, a plurality of secondary limiting grooves 33 are formed in the bottom of the threaded column 31, a cutter end reinforcing unit 4 for reinforcing a cutter handle port is arranged at the bottom of the main shaft 3, the cutter end reinforcing unit 4 comprises a rotating member 41, a protruding inner ring gear fluted disc 42 is installed on the inner ring of the rotating member 41, reinforcing outer disks 43 are rotatably connected to the upper and lower ends of the inner ring gear fluted disc 42, the reinforcing outer disks 43 are rotatably connected to the inner ring of the rotating member 41, annular-array connecting sleeves 44 are installed on the upper and lower ends of the reinforcing outer disks 43, a reinforcing inner disk 45 for penetrating through a cutter handle is installed on one side of the connecting sleeves 44 away from the reinforcing outer disks 43, a long cylindrical gear 46 is rotatably connected between the middle parts of the connecting sleeves 44 through bearings, annular-array penetrating transverse grooves 470 are formed between the reinforcing inner disk 45 and the reinforcing outer disks 43, a gear rack 47 is arranged in the penetrating transverse groove 470 in a sliding manner, the gear rack 47 is meshed with the long cylindrical gear 46, one end, close to the reinforcing inner circular disc 45, of the long cylindrical gear 46 is provided with an arc pressing piece 48 for pressing a tool handle, the outer side of the rotating piece 41 is provided with a driving part for driving the rotating piece 41 to rotate, the top of the reinforcing inner circular disc 45 is provided with a limit threaded rod 433, the limit threaded rod 433 is arranged inside the secondary limit groove 33 in a penetrating manner, the driving part comprises a threaded rotary disc 422 arranged on the outer wall of the rotating piece 41, the top of the threaded rotary disc 422 is provided with a bolt type rotary disc 421, the inner ring of the bolt type rotary disc 421 and the outer ring of the threaded cylinder 31 are provided with matched threaded holes, a T-shaped sliding rail 411 is arranged on the side wall in the penetrating transverse groove 470, a C-shaped sliding rail 412 is arranged on one side, close to the T-shaped sliding rail 411, and a notch 413 is arranged on one side, far away from the reinforcing inner circular disc 45, of the gear rack 47, notch 413 internal thread is connected with spring telescopic rod 414, spring telescopic rod 414 keeps away from one side of rack 47 and installs arc 415, the upper and lower both ends of consolidating outer disc 43 are provided with dustproof component, dustproof component is including installing a plurality of first lead screws 431 at interior disc 45 top of consolidating, the bottom cover of first lead screw 431 is equipped with first dust guard 432, a plurality of second lead screws 434 are installed to threaded connection consolidates the bottom of inner disc 45 on the top of first lead screw 431 for limit threaded rod 433, the outside cover of consolidating inner disc 45 is equipped with second dust guard 435, the outside and the threaded connection that second dust guard 435 was worn to establish by the one end of second lead screw 434 have screw torsion bar 436, the circular slot that is used for wearing to establish the handle of a knife is seted up at the middle part of second dust guard 435.

During operation, when handle of a knife 2 passes and consolidates inside inner disc 45, the staff twists screw type carousel 422 with the hand and drives bolt type carousel 421 rotary motion, make bolt type carousel 421 rotatory the screwing up outside screw post 31, in order to make bolt type carousel 421 and screw post 31 fully firm, can twist on bolt type carousel 421 through the spanner, in the process of twisting bolt type carousel 421, drive its rotation piece 41 and inner circle wheel fluted disc 42 rotary motion of connecting, inner circle wheel fluted disc 42 drives long column gear 46 rotary motion simultaneously, long column gear 46 drives the gear teeth strip 47 rotary motion at both ends from top to bottom afterwards, make four wheel racks 47 realize concertina movement in running through cross slot 470, then suppress the handle of a knife in the periphery of handle 2 through the arc briquetting 48 of consolidating in inner disc 45, and then reach the mesh of consolidating different diameter's handle of knife 2.

During operation, when the inside part of sword end reinforcing unit 4 damages, can unscrew on first lead screw 431 through limit threaded rod 433 to and screw torsion bar 436 unscrews on screw torsion bar 436, can maintain reinforcing inner disc 45 inner circle, simultaneously through limit threaded rod 433, first lead screw 431, under the cooperation between screw torsion bar 436 and the second lead screw 434, surround first dust guard 432 and second dust guard 435 on reinforcing inner disc 45, and then play dustproof effect, and be convenient for install or dismantle it.

It should be noted that the rotation motion among the inner ring gear fluted disc 42, the long column gear 46 and the gear tooth strip 47 is realized by the twisting between the bolt type rotating disc 421 and the thread column 31, so that the purpose of reinforcing the cutter handle pieces 2 with different diameters is realized, and meanwhile, the installation or the disassembly between the thread column 31 and the bolt type rotating disc 421 is also realized.

It should be noted that, in the present invention, the T-shaped slide rail 411 and the C-shaped slide rail 412 are provided, so that the wheel rack 47 keeps limited movement in the through transverse slot 470, and simultaneously, the gear teeth in the wheel rack 47 and the long column gear 46 keep tight engagement, so as to prevent the wheel rack 47 from shaking left and right, and improve the movement stability of the wheel rack 47.

It is worth noting that according to the present invention, the spring in the telescopic spring rod 414 is a compression spring, and the cross-sectional area of the arc-shaped piece 415 is larger than the area of the groove body penetrating through the transverse groove 470, so as to prevent the rack and wheel 47 from moving excessively, and the rack and wheel 47 can be quickly returned through the cooperation between the telescopic spring rod 414 and the arc-shaped piece 415, and the rack and wheel 47 can be disassembled through the threaded connection between the telescopic spring rod 414 and the rack and wheel 47.

Example two:

the embodiment is basically the same as the first technical solution of the embodiment, and the difference is that as shown in fig. 2 and fig. 9, a telescopic adjustment type T-shaped milling cutter used for a fixing assembly of the T-shaped milling cutter includes a milling cutter column 1 and a cutter handle member 2 arranged at the top of the milling cutter column 1, the outer side of the milling cutter column 1 is detachably connected with the T-shaped milling cutter member 11 in an annular array through a bolt, the cutter handle member 2 includes a lower-section cutter handle 202 arranged at the top of the milling cutter column 1, a cavity screw 2021 is arranged at the top of the lower-section cutter handle 202, an upper-section cutter handle 201 is arranged at the top of the lower-section cutter handle 202, a thread through groove 2 convenient for the cavity screw 2021 to be accommodated is arranged at the bottom of the upper-section cutter handle 201, a solid screw 2023 is arranged in the thread through groove 2022, the solid screw 2023 is in threaded connection with the cavity screw 2021, a fixing groove 20 in an annular array is arranged at the top of the upper-section cutter handle 201, a limit pressing member 49 adapted to a pressing groove 20 is arranged at the middle portion of a side surface of the arc member 48 far away from the reinforcing inner circular disc 45, a limit member 22 is arranged at the top of the cutter handle top of the upper-section 2022, a limit member 22, and a limit member 31 is arranged at a limit member 32 adapted to the limit member.

The worker inserts the cavity lead screw 2021 on the lower section handle 202 into the threaded groove 2022 for rotary motion, so that the telescopic motion between the upper section handle 201 and the lower section handle 202 can be realized, and external dust can be prevented from entering the outer wall of the solid lead screw 2023 and the inner wall of the cavity lead screw 2021.

Firstly, in the process of inserting the handle member 2 by a worker, the limiting member 22 at the top of the handle member 2 is inserted into the main limiting groove 32 on the threaded column 31, so that the fixing groove 20 on the handle member 2 is aligned with the limiting pressing member 49, then in the process of moving the arc pressing member 48 close to the handle member 2, the limiting pressing member 49 is directly pressed in the fixing groove 20 on the handle member 2, and the reinforcing effect on the handle member 2 is further improved.

Example three:

basically the same as the first technical solution of the embodiment, the difference is that as shown in fig. 6-8, a middle-knife-fixing unit 5 for fixing the middle part of the knife handle is arranged at the bottom of the knife-end-fixing unit 4, the middle-knife-fixing unit 5 includes a cavity box 51, three lifting screws 54 are connected to the bottom of the cavity box 51 through threads, an inner cavity of the cavity box 51 is used for driving a linkage part of the three lifting screws 54 to move synchronously, a moving disc 55 is arranged between the three lifting screws 54, a sleeve disc 56 is rotatably connected to the inner ring of the moving disc 55, the linkage part includes a hollow cylinder disc 50 arranged at the middle part of the inner cavity of the cavity box 51, a first outer-ring gear disc 52 is rotatably connected to the bottom wall of the inner cavity of the cavity box 51, a connecting gear 53 is rotatably connected to one side of the bottom wall of the inner cavity of the cavity box 51 corresponding to the lifting screws 54, the connecting gear 53 is engaged with the first outer-ring gear disc 52, the top end of the lifting screws 54 penetrates through the inner cavity of the cavity box 51 and is fixedly connected with the connecting gear 53, a linkage groove is formed in the right side of the front end of the cavity box 51, a manual twisting wheel 512 meshed with the second outer ring gear toothed disc 511 is rotatably connected in the linkage groove, arc-shaped connecting pieces 21 in an annular array are mounted at the top of the lower section tool holder 202, through holes 57 for the arc-shaped connecting pieces 21 to penetrate through are formed in inner rings of the sleeve discs 56, arc-shaped grooves 58 for pressing the arc-shaped connecting pieces 21 are formed in the inner rings of the sleeve discs 56 and located between the adjacent through holes 57, a ratchet unit 5130 for controlling the manual twisting wheel 512 to rotate is arranged below the manual twisting wheel 512 of the cavity box 51, the ratchet unit 5130 comprises a fixed block 514 mounted on one side of the cavity box 51 and located below the ratchet wheel 513, a clamping head 515 for clamping the ratchet wheel 513 is rotatably connected at the top of the fixed block 514, and a return spring 516 is connected between the right end of the clamping head 515 and the cavity box 51, the side of the gripping head 515 remote from the cavity box 51 is fitted with a pull rod 517.

When the milling cutter is in operation, when the cutter handle is fixed on the main shaft 3, so that the cutter bar is long in design length, a worker twists the manual twisting wheel 512 to perform rotary motion, the manual twisting wheel 512 drives the hollow cylinder disk 50 and the first outer ring wheel fluted disk 52 to perform synchronous rotary motion, then the first outer ring wheel fluted disk 52 drives the three connecting gears 53 to perform synchronous rotary motion, so that the lifting screw rod 54 performs synchronous direction rotary motion, further the lifting screw rod 54 performs lifting motion on the lifting screw rod 55, the movable disk 55 moves to the middle of the cutter bar according to the length of the cutter bar, then the sleeve disk 56 is rotated to enable the through hole 57 to penetrate through the arc-shaped connecting piece 21 on the lower section cutter handle 202, then the sleeve disk 56 is rotated to enable the arc-shaped connecting piece 21 to move to the inner side of the arc-shaped groove 58, then the manual twisting wheel 512 performs rotary motion on the second outer ring wheel fluted disk 511 and the first outer ring wheel fluted disk 52 again, so that the movable disk 55 moves upwards until the arc-shaped connecting piece 21 is on the arc-shaped groove 58, so that the middle position of the cutter handle 2 can be tightly attached to exert a limiting effect, and compared with the prior art, the problem that the stress on the cutter handle is solved that the milling cutter handle is solved.

In the process of the rotary motion of the manual twist wheel 512, the clamping head 515 presses the ratchet wheel plate 513 at any time under the matching of the reset spring 516, so that the manual twist wheel 512 is prevented from rotating in a small range, meanwhile, the pull rod 517 can be pulled to drive the clamping head 515 to be separated from the inside of the ratchet wheel plate 513, then the manual twist wheel 512 can be rapidly twisted to perform rotary motion, and the rapid locking convenience of the manual twist wheel 512 is further improved.

The working principle is as follows: this be used for stretch-draw adjusting formula T type milling cutter and during fixed subassembly, during the use:

firstly, in the process of inserting the cutter handle member 2 by an operator, inserting the limiting member 22 at the top of the cutter handle member 2 into the main limiting groove 32 on the threaded column 31, and further aligning the fixing groove 20 on the cutter handle member 2 with the limiting pressing member 49, the operator twists the threaded turntable 422 with a hand to drive the bolt turntable 421 to rotate, so that the bolt turntable 421 rotates and screws outside the threaded column 31, in order to sufficiently stabilize the bolt turntable 421 and the threaded column 31, the bolt turntable 421 can be twisted by a wrench, in the twisting process of the bolt turntable 421, the rotating member 41 and the inner ring gear-toothed disc 42 connected with the bolt turntable are driven to rotate, meanwhile, the inner ring gear-toothed disc 42 drives the long column gear 46 to rotate, then, the long column gear 46 drives the gear bars 47 at the upper end and the lower end to rotate, so that the four wheel racks 47 extend and retract in the transverse groove 470, then, the periphery of the cutter handle member 2 is pressed by the arc pressing member 48 in the reinforcing inner disc 45, and then, in the process that the arc pressing member 48 is close to the cutter handle member 2 to move, and the limiting groove 20 on the limiting handle member 49 is directly pressed;

secondly, when parts inside the cutter end reinforcing unit 4 are damaged, the inner ring of the reinforcing inner circular disc 45 can be maintained by unscrewing the limiting threaded rod 433 on the first screw rod 431 and unscrewing the thread torsion rod 436 on the thread torsion rod 436, and meanwhile, the first dust-proof plate 432 and the second dust-proof plate 435 are surrounded on the reinforcing inner circular disc 45 under the matching among the limiting threaded rod 433, the first screw rod 431, the thread torsion rod 436 and the second screw rod 434, so that the dust-proof effect is achieved;

thirdly, when the tool shank is fixed on the main shaft 3, so that the designed length of the tool shank is long, a worker twists the manual twisting wheel 512 to perform a rotating motion, the manual twisting wheel 512 drives the hollow cylinder disk 50 and the first outer ring wheel fluted disk 52 to perform a synchronous rotating motion, then the first outer ring wheel fluted disk 52 drives the three connecting gears 53 to perform a synchronous rotating motion, so that the lifting screw rod 54 performs a synchronous rotating motion, further, the moving disk 55 performs a lifting motion on the lifting screw rod 54, the moving disk 55 moves to the middle of the tool shank according to the length of the tool shank, then the sleeve disk 56 is rotated to enable the arc-shaped connecting piece 21 of the through hole 57 on the lower section tool shank 202 to pass through, then the sleeve disk 56 is rotated to enable the arc-shaped connecting piece 21 to move to the inner side of the arc-shaped groove 58, and then the manual twisting wheel 512 performs a rotating motion on the second outer ring wheel fluted disk 511 and the first outer ring wheel fluted disk 52 again, so that the moving disk 55 moves upwards until the arc-shaped connecting piece 21 is on the arc-shaped groove 58, so that the middle position of the tool shank 2 is tightly attached to play a reinforcing role.

In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A T type milling cutter's fixed subassembly, includes main shaft (3), its characterized in that: the bottom wall of the main shaft (3) is provided with a threaded column (31), the bottom of the threaded column (31) is provided with a plurality of secondary limiting grooves (33), the bottom of the main shaft (3) is provided with a cutter end reinforcing unit (4) for reinforcing a cutter handle port, and the bottom of the cutter end reinforcing unit (4) is provided with a cutter middle reinforcing unit (5) for reinforcing the middle part of the cutter handle;

the utility model discloses a cutter head reinforcing unit (4) including rotating piece (41), the inner circle of rotating piece (41) is installed and is outstanding inner circle fluted disc (42), the upper and lower both ends of inner circle fluted disc (42) are rotated and are connected with reinforcement outer disc (43), it connects to consolidate outer disc (43) and rotate at rotating piece (41) inner circle, it installs adapter sleeve (44) that is annular array to consolidate both ends from top to bottom of outer disc (43), one side that reinforcement outer disc (43) was kept away from in adapter sleeve (44) is installed and is used for running through reinforcement inner disc (45) of handle of a knife, rotate through the bearing between the middle part of adapter sleeve (44) and be connected with long column gear (46), set up running through transverse groove (470) that is annular array between reinforcement inner disc (45) and reinforcement outer disc (43), it is equipped with rack (47) in running through transverse groove (470), rack (47) and long column gear (46) mesh, long column gear (46) are close to the one end of reinforcement disc (45) and install arc suppression pressfitting (48) of handle of a knife, the outside that rotates piece (41) is provided with the drive screw rod (41) and is provided with the drive part, the both ends of rotation piece (433) of rotating piece (41) of the upper and rotation of the upper and lower part of the rotation of the piece (433), the limiting threaded rod (433) penetrates through the inner side of the secondary limiting groove (33);

the knife reinforcing unit (5) comprises a cavity box (51), the bottom of the cavity box (51) is in threaded connection with three lifting screw rods (54), an inner cavity of the cavity box (51) is used for driving a linkage part of the three lifting screw rods (54) to move synchronously, a moving disc (55) is arranged between the lifting screw rods (54), and an inner ring of the moving disc (55) is rotatably connected with a sleeve disc (56).

2. A T-mill fixing assembly according to claim 1, wherein: the driving part comprises a thread type turntable (422) arranged on the outer wall of the rotating part (41), a bolt type turntable (421) is arranged at the top of the thread type turntable (422), and threaded holes matched with each other are formed in the inner ring of the bolt type turntable (421) and the outer ring of the threaded column (31).

3. A T-mill fixing assembly according to claim 1, wherein: the lateral wall that runs through in the horizontal groove (470) is installed T type slide rail (411), C type slide rail (412) are installed to one side that wheel rack (47) are close to T type slide rail (411).

4. A T-mill fixing assembly according to claim 3, wherein: a notch (413) is formed in one side, away from the reinforcing inner circular disc (45), of the wheel rack (47), a spring telescopic rod (414) is connected to the notch (413) in an internal thread mode, and an arc-shaped piece (415) is installed on one side, away from the wheel rack (47), of the spring telescopic rod (414).

5. A T-mill fixing assembly according to claim 1, wherein: the dustproof part is including installing a plurality of first lead screws (431) at disc (45) top in the reinforcement, the bottom cover of first lead screw (431) is equipped with first dust guard (432), threaded connection on the top of first lead screw (431) is gone up in limit threaded rod (433) a plurality of second lead screws (434) are installed to the bottom of disc (45) in the reinforcement, the outside cover of disc (45) in the reinforcement is equipped with second dust guard (435), the outside and the threaded connection that second dust guard (435) were worn to establish by the one end of second lead screw (434) have screw torsion bar (436), the circular slot mouth that is used for wearing to establish the handle of a knife is seted up at the middle part of second dust guard (435).

6. A T-mill fixing assembly according to claim 1, wherein: linkage portion is including installing empty section of thick bamboo disc (50) at cavity case (51) inner chamber middle part, the diapire of cavity case (51) rotates and is connected with first outer lane fluted disc (52), the inner chamber diapire of cavity case (51) corresponds lift lead screw (54) one side and rotates and be connected with connecting gear (53), connecting gear (53) and first outer lane fluted disc (52) mesh mutually, cavity case (51) inner chamber and with connecting gear (53) fixed connection are worn to establish on the top of lift lead screw (54), the linkage groove has been seted up on the front end right side of cavity case (51), the linkage inslot internal rotation is connected with artifical driving wheel (512) of twisting with second outer lane fluted disc (511) engaged with, the below that cavity case (51) are located artifical driving wheel (512) is provided with and is used for controlling artifical ratchet unit (5130) pivoted of twisting wheel (512).

7. A T-mill fixing assembly according to claim 6, wherein: ratchet unit (5130) is including installing fixed block (514) in cavity case (51) one side and being located ratchet dish (513) side below, the top of fixed block (514) is rotated and is connected with clamping head (515) that are used for centre gripping ratchet dish (513), be connected with between the right-hand member of clamping head (515) and cavity case (51) reset spring (516), draw bar (517) are installed to one side that cavity case (51) was kept away from in clamping head (515).

8. A telescopic T-mill for use in a T-mill securing assembly according to any one of claims 1 and 7, wherein: including milling cutter post (1) and handle of a knife spare (2) of setting at milling cutter post (1) top, the outside of milling cutter post (1) can be dismantled through the bolt and be connected with T type milling cutter spare (11) that are the annular array, handle of a knife spare (2) are including installing hypomere handle of a knife (202) at milling cutter post (1) top, cavity lead screw (2021) is installed at the top of hypomere handle of a knife (202), the top of hypomere handle of a knife (202) is provided with upper segment handle of a knife (201), screw thread cross slot (2022) that cavity lead screw (2021) of being convenient for accomodate are seted up to the bottom of upper segment handle of a knife (201), install solid lead screw (2023) in the screw cross slot (2022), threaded connection between solid lead screw (2023) and cavity lead screw (2021).

9. A telescopically adjustable T-mill according to claim 8, wherein: the top of upper segment handle of a knife (201) is seted up and is fixed slot (20) that are the annular array, a side mid-mounting that reinforcement inner disc (45) was kept away from in arc suppression piece (48) has spacing suppression piece (49) with fixed slot (20) looks adaptation, locating part (22) are installed at the top of upper segment handle of a knife (201), main spacing groove (32) with locating part (22) looks adaptation are seted up to the diapire of screw thread post (31).

10. A telescopically adjustable T-mill according to claim 8, wherein: the arc-shaped connecting pieces (21) in an annular array are mounted at the top of the lower section cutter handle (202), through holes (57) used for the arc-shaped connecting pieces (21) to penetrate through are formed in the inner ring of the sleeve disc (56), and arc-shaped grooves 58 used for pressing the arc-shaped connecting pieces (21) are formed in the inner ring of the sleeve disc (56) and located between the adjacent through holes (57).

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