CN216990058U - Milling cutter dish for machining - Google Patents

Abstract

The application relates to a milling cutter disc for machining, relates to the technical field of cutter discs, and comprises a cutter holder and a cutter rest fixedly installed with the cutter holder, wherein a first threaded hole is formed in the cutter holder, a balance screw is connected to the first threaded hole in an internal thread manner, a mounting groove is formed in the outer peripheral surface of the cutter rest, a blade is mounted in the mounting groove, a through groove and a first countersunk hole communicated with the through groove are formed in the blade, the blade passes through the through groove through a fastening screw and is fixed on the bottom wall of the mounting groove, the balance screw is arranged in the milling cutter disc, dynamic balance compensation correction is realized by adjusting the position of the balance screw in the first threaded hole, the blade does not need to be replaced, and the milling cutter disc is convenient and rapid to use, saves time and labor and can also save blade resources; through the laminating cooperation on adjusting screw and blade inclined plane, promote the blade removal when making adjusting screw rotatory, the length that the knife tip of adjusting blade stretches out the mounting groove satisfies different processing demands.

Description

Milling cutter dish for machining

Technical Field

The application relates to the field of cutter discs, in particular to a milling cutter disc for machining.

Background

The milling cutter disc can be provided with a plurality of milling cutter blades so as to mill a workpiece. After the cutter head is machined and used for a long time, the cutter head is abraded differently, and after the cutter head is abraded differently, the problems of vibration, abnormal sound and the like can occur in the cutter head in the machining process, so that the machining quality of a workpiece is influenced, a machine tool spindle is damaged, and the safety problem of cutter breakage can also occur.

In the prior art, when the problems of vibration, abnormal sound and the like can occur to the cutter head, the blades on the cutter head are generally replaced, but the replaced blades can not reach the wear limit, so that the waste of blade resources is caused.

SUMMERY OF THE UTILITY MODEL

Need change the problem of blade when vibrations, abnormal sound scheduling problem can appear in order to alleviate the blade disc, this application provides a milling cutter dish for machining.

The application provides a facing cutter for machining adopts following technical scheme:

the utility model provides a milling cutter dish for machining, including the blade holder, with blade holder fixed mounting's knife rest, first screw hole has been seted up on the blade holder, first screw hole female connection has the balance screw.

Through adopting above-mentioned technical scheme, the focus of milling cutter dish is adjusted to the position of adjusting balance screw in first threaded hole to the dynamic balance unbalance that causes because of cutter wearing and tearing under the compensation part condition need not change the blade cutter, and is simple convenient, can save blade resource moreover in the scope of blade wearing and tearing limit.

Further, preferably, the balance screws are installed along the radial direction of the tool holder, and the balance screws are arranged in a plurality and evenly distributed around the axis line of the tool holder.

Through adopting above-mentioned technical scheme, the setting of a plurality of balance screws can satisfy dynamic balance adjustment under more the condition.

Further preferably, a mounting groove is formed in the peripheral surface of the tool rest, a blade is mounted in the mounting groove, a through groove and a first counter bore communicated with the through groove are formed in the blade, and the blade penetrates through the through groove through a fastening screw and is fixed to the bottom wall of the mounting groove.

Through adopting above-mentioned technical scheme, install the blade on the outer peripheral face of knife rest, the change of the blade of being convenient for is adjusted.

Further preferably, the cross section of the through groove is in a strip shape and is arranged along the axial lead direction of the tool rest; the bottom wall of the inner side of the mounting groove is in threaded connection with an adjusting screw, the side face, opposite to the tool nose, of the blade is provided with an inclined plane, and a nut of the adjusting screw is attached to the inclined plane.

Through adopting above-mentioned technical scheme, through rotatory adjusting screw, make its nut carry out lift adjustment to through with the inclined plane laminating on the blade side, realize the removal regulation of blade, change the blade and stretch out the length of installation slot part, satisfy different processing requirements.

Further preferably, a butt plate is slidably arranged in the through groove, a reset piece used for keeping the butt plate in butt joint with the fastening screw is arranged between the butt plate and the side wall of the through groove, and the reset force of the reset piece faces towards the adjusting screw.

By adopting the technical scheme, in the process of adjusting the position of the blade by the adjusting screw, as the position of the fastening screw is unchanged, the abutting plate can abut against the surface of the screw rod of the fastening screw in the moving process of the blade, and the reset piece is compressed; when the adjusting screw is rotated reversely, the movable blade is pushed to reset and move under the action of the resetting piece.

Further preferably, a sleeve penetrates through the through groove, a first through hole for the screw rod of the fastening screw to penetrate through is formed in the sleeve, and the sleeve is located between the nut of the fastening screw and the bottom wall of the first counter sink.

Through adopting above-mentioned technical scheme, make the butt plate can not lead to the fact the damage to the screw thread on screw surface with fastening screw's screw rod surface direct contact, influence the fastening effect of blade.

Further preferably, both ends of the blade are provided with at least one tool nose, and both sides of the fastening screw are provided with the abutting plate and the reset piece.

Through adopting above-mentioned technical scheme, the blade can switch the knife tip and use, from setting up two sets of butt plate and the piece that resets, makes the blade switch the back and use also can remove the regulation and reset.

Further preferably, the blade is of a double-sided structure, the sleeves are T-shaped, the two sleeves are respectively inserted into the through grooves in the two sides of the blade, and threads or clamping joints between the two sleeves form an I-shaped structure used for limiting the abutting plate.

Through adopting above-mentioned technical scheme, the blade is two-sided blade, can switch from top to bottom the use to set up two interconnect and be the sleeve of "worker" style of calligraphy structure, be convenient for switch the back to fastening screw's connection.

Further preferably, the tip of the blade is of a welded type.

Through adopting above-mentioned technical scheme, when the blade reaches the wearing and tearing limit, need not change whole blade, the knife tip that will wear out is polished away and is welded knife tip material again and can be reused, improves resource utilization and rate, moreover can be according to processing needs change welding material can.

Further preferably, the two opposite side surfaces of the blade are provided with a tool nose and an inclined surface.

By adopting the technical scheme, after the tool nose on one side of the blade is machined and reaches the abrasion limit, the tool nose on the other side can be adjusted to the machining position only by rotating the blade, so that the blade can be continuously used, and the service life of the blade is prolonged.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the dynamic balance compensation method, the balance screw is arranged on the base, dynamic balance compensation correction is achieved by adjusting the position of the balance screw in the first threaded hole, a blade does not need to be replaced, convenience and rapidness are achieved, time and labor are saved, and blade resources can be saved;

2. in the further arrangement of the application, the adjusting screw is matched with the inclined plane of the blade in a fitting manner, so that the nut of the adjusting screw pushes the blade to move when the adjusting screw rotates, the length of the tool nose of the blade extending out of the mounting groove is adjusted, and different processing requirements are met;

3. in this application further sets up, the blade both sides all are provided with the knife tip, only need change the knife tip of opposite side after the knife tip of one side uses and reaches the wearing and tearing limit, and this blade can continue to be used for processing to use, increases the life of blade, has reduced the loaded down with trivial details step of the whole change of blade.

Drawings

Fig. 1 is a schematic perspective view of a milling cutter head for machining;

FIG. 2 is a perspective view of the tool holder;

FIG. 3 is a schematic view of the internal structure of the tool holder;

FIG. 4 is a perspective view of the tool holder;

FIG. 5 is a schematic view of the internal structure of the blade;

FIG. 6 is an enlarged schematic view at A in FIG. 5;

FIG. 7 is a schematic view of the internal structure of the sleeve;

FIG. 8 is a cut-away view at B-B in FIG. 6;

fig. 9 is a perspective view of the blade.

Description of reference numerals: 1. a tool apron; 2. a tool holder; 3. a disc; 4. a balance screw; 5. a first threaded hole; 6. a gasket; 7. a sleeve; 11. a connecting portion; 12. a support portion; 13. a groove; 14. a second through hole; 15. a second counterbore; 21. mounting grooves; 22. a second threaded hole; 23. a third threaded hole; 24. connecting holes; 25. a blade; 26. an adjusting screw; 27. a first counterbore; 28. fastening screws; 71. a first through hole; 81. a through groove; 82. abutting against the plate; 83. a reset member; 251. a knife tip; 252. a bevel.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

The embodiment of the application discloses a milling cutter dish for machining. Referring to fig. 1, the tool post 1 and the tool rest 2 are included, in order to enable the tool post 1 and the tool rest 2 to rotate at a high speed, the tool rest 2 and the tool post 1 are both of a revolving body structure, and referring to fig. 2 to 3, a second through hole 14 is formed in the tool post 1 and used for connecting the tool post 1 with a spindle of a machine tool. A balance screw 4 is arranged in a first threaded hole 5 formed in the outer peripheral surface of the cutter holder 1 through internal threads, and the position of the balance screw 4 in the first threaded hole 5 can be adjusted by rotating the balance screw 4, so that the gravity center position of the whole cutter head is adjusted, and the effect of adjusting the dynamic balance of the cutter head is achieved.

The first threaded holes 5 are formed in the outer peripheral surface of the cutter holder 1 in a plurality of modes, so that the center of gravity of the cutter can be adjusted in multiple directions, and preferably, the first threaded holes 5 are uniformly distributed in the circumferential direction of the outer peripheral surface of the cutter holder 1, so that the first threaded holes 5 can be machined conveniently.

Referring to fig. 4, the outer circumferential surface of the tool holder 2 is provided with a plurality of mounting grooves 21 for mounting the inserts 25, the mounting grooves 21 are uniformly distributed along the circumferential direction of the outer circumferential surface of the tool holder 2, and each insert 25 can be mounted in each mounting groove 21, that is, a plurality of inserts 25 can be mounted on the tool holder 2, and preferably, the mounting grooves 21 are the same in number and opposite in position to the first threaded holes 5.

Referring to fig. 5, a second threaded hole 22 is formed in the bottom wall of the inner side of the mounting groove 21, an adjusting screw 26 is threadedly mounted in the second threaded hole 22, the adjusting screw 26 is used for pushing the blade 25 to move, and the length of the portion, extending out of the mounting groove 21, of the blade tip 251 of the blade 25 is adjusted, specifically, the blade tip 251 of the blade 25 is located at the outer side of the mounting groove 21, i.e., away from the adjusting screw 26 and needs to extend out of the mounting groove 21, a side surface, opposite to the blade tip 251, of the blade 25 is provided with an inclined surface 252, i.e., a side surface close to the adjusting screw 26 is an inclined surface 252, the nut of the adjusting screw 26 is attached to the inclined surface 252, by rotating the adjusting screw 26, the nut of the adjusting screw 26 is adjusted to move up and down, and the blade 25 is pushed to move by the attachment of the inclined surface 252. Preferably, the bottom of the adjusting screw 26 abuts the inclined surface 252 to facilitate the screwing of the adjusting screw 26.

Referring to fig. 6-7, a third threaded hole 23 is formed in the bottom wall of the mounting groove 21, a fastening screw 28 is connected to the third threaded hole 23 in a threaded manner, a first counter bore 27 and a through groove 81 are formed in the insert 25, the first counter bore 27 and the through groove 81 penetrate through the insert 25, the fastening screw 28 penetrates through the first counter bore 27 and the through groove 81 to be connected with the third threaded hole 23 in a threaded manner, so that the insert 25 is fixed to the mounting groove 21, the cross section of the first counter bore 27 is larger than that of the through groove 81, and the nut of the fastening screw 28 abuts against the bottom wall of the first counter bore 27 after mounting.

Preferably, a shim 6 is provided between the cap of the securing screw 28 and the bottom wall of the first counter bore 27 to reduce wear between the insert 25 and the securing screw 28.

Referring to fig. 8, since the blade 25 can be adjusted in a moving manner, and the fastening screw 28 is connected with the third threaded hole 23, and the position of the fastening screw is fixed, in order to avoid damage caused by interference between the blade 25 and the fastening screw 28 in moving, an abutting plate 82 is arranged in the through groove 81, and the abutting plate 82 is connected with a reset piece 83 on the side wall of the through groove 81; secondly, still be provided with sleeve 7, sleeve 7 cover is on fastening screw 28 periphery, and its vertical cross-section is the T style of calligraphy, and the T style of calligraphy head of sleeve 7 is located between fastening screw 28's nut and gasket 6, and its pole portion is located logical inslot 81. During the movement of the blade 25, the abutting plate 82 contacts the sleeve 7 sleeved on the periphery of the fastening screw 28, and the reset piece 83 is compressed, so that the blade 25 can not interfere with the fastening screw 28 under the condition that the blade 25 can be displaced relative to the fastening screw 28; the sleeve 7 can prevent the abutting plate 82 from abutting directly with the screw part of the fastening screw 28, and prevent the thread from being damaged, so that the fastening effect is reduced.

Preferably, the upper end surface and the lower end surface of the blade 25 can be respectively provided with a first counter bore 27, the sleeve 7 is two sleeves which are nested with each other and can form an I shape, the side wall of the through groove 81 is provided with two abutting plates 82 and a resetting piece 83, when the machine tool spindle is not suitable for switching the positive rotation and the negative rotation to realize the switching of the processing direction of the blade 25, the fastening screw 28 is only required to be detached from the blade 25 at the moment, the upper direction and the lower direction of the blade 25 are switched and installed, and then the fastening screw 28 is installed again.

Referring to fig. 9, the blade 25 may be a double-point blade having two points 251 disposed at opposite sides of the blade 25, respectively. Similarly, two inclined surfaces 252 are provided to face the cutting edges 251, and the two cutting edges 251 are arranged to be symmetrical about the center of the first countersunk hole 27 so that the cutting directions of the inserts 25 are aligned when the cutting edges 251 are switched.

In addition, in order to avoid frequent replacement of the blade 25, the tool tip 251 is connected with the main body part of the blade 25 in a welding mode, the tool tip material can be common materials such as artificial diamond or polycrystalline diamond, and the like, and can also be selected according to the type of a processed workpiece, and after the tool tip 251 is abraded to reach the limit, the original tool tip is only needed to be abraded, and then a new tool tip is welded, so that the original blade 25 can be reused, and the resource utilization rate is improved.

Preferably, the tool apron 1 is made of light materials such as aluminum alloy and the like, so that the weight of the whole cutter head is reduced, and the high-speed operation of the cutter head is facilitated; the tool rest 2 is generally made of steel, installation of the blades is guaranteed, deformation of the tool rest 2 caused by installation of the blades is avoided, the density of the steel is more than twice that of aluminum alloy, the tool rest 2 is arranged to be annular for further reducing the weight of the tool pan, a connecting hole 24 is formed in the end face of the side of the tool rest 2, a second counter sink 15 is formed in the tool apron 1, and the tool apron 1 and the tool rest 2 are fixed in a screw connection mode.

Secondly, a supporting part 12 and a connecting part 11 are respectively arranged on two sides of the tool apron 1, the supporting part 12, the connecting part 11 and the tool apron 1 are integrally formed and still have a revolving body structure, and a second through hole 14 penetrates through the supporting part 12, the connecting part 11 and the tool apron 1, so that the whole tool pan is further light; the external diameter of supporting part 12 and connecting portion 11 all is less than blade holder 1 external diameter, conveniently processes out second counter bore 15 on blade holder 1, and wherein connecting portion 11 is used for being connected with the lathe main shaft, and supporting part 12 is located the tool rest 2 annular opening and supports it, reduces the loss of the screw between blade holder 1 and the tool rest 2 to the thickness of supporting part 12 is not more than the annular opening width.

In addition, a groove 13 is arranged on the end surface of the supporting part 12, which is far away from the tool holder 1, a disc 3 is fixedly arranged in the groove 13, and the disc 3 is used for sealing the second through hole 14, so that cutting fluid and cutting waste materials for processing are prevented from entering the second through hole 14.

The implementation principle of the milling cutter disc for machining in the embodiment of the application is as follows: firstly, selecting an appropriate blade 25 with a blade tip 251, adjusting the orientation of the blade tip 251 according to the cutting direction, and installing the blade 25 into the installation groove 21, wherein a fastening screw 28 penetrates through the sleeve 7 and is connected with the third threaded hole 23, but is not screwed; secondly, screwing the adjusting screw 26 and adjusting the length of the tool nose 251 extending out of the mounting groove 21, and screwing the fastening screw 28 after the adjustment is finished; then the tool rest 2 is sleeved on the supporting part 12 and fixedly arranged on the tool apron 1 to form a cutter head, the cutter head is arranged on a main shaft of a machine tool, and finally the disc 3 is fixed on the supporting part 12 to close the opening of the second through hole 14.

When dynamic balance adjustment is needed, the balance screw 4 is screwed, the position of the balance screw in the first threaded hole 5 is adjusted, the gravity center position of the whole cutter head is adjusted, and then the dynamic balance adjustment effect is achieved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides a facing cutter for machining, include blade holder (1), with blade holder (1) fixed mounting's knife rest (2), its characterized in that: a first threaded hole (5) is formed in the tool apron (1), and a balance screw (4) is connected to the first threaded hole (5) in an internal thread mode.

2. A milling cutter disc for machining according to claim 1, wherein: the balance screws (4) are arranged along the radial direction of the tool apron (1), and the balance screws (4) are arranged in a plurality and are uniformly distributed around the axial lead of the tool apron (1).

3. A milling cutter disc for machining according to claim 1, wherein: mounting groove (21) have been seted up on knife rest (2) outer peripheral face, install blade (25) in mounting groove (21), be equipped with on blade (25) and lead to groove (81) and with first counter sink (27) that lead to groove (81) intercommunication, blade (25) pass through groove (81) through fastening screw (28) and fix on mounting groove (21) diapire.

4. A milling cutter disc for machining according to claim 3, wherein: the cross section of the through groove (81) is in a strip shape and is arranged along the axial lead direction of the tool rest (2); the cutting insert is characterized in that an adjusting screw (26) is connected to the inner side bottom wall of the mounting groove (21) in a threaded mode, an inclined plane (252) is formed in the side face, opposite to the tool nose (251) of the cutting insert, of the cutting insert (25), and a nut of the adjusting screw (26) is attached to the inclined plane (252).

5. A milling cutter disc for machining according to claim 4, wherein: the through groove (81) is internally provided with a butt plate (82) in a sliding manner, a reset piece (83) used for keeping the butt plate (82) in butt joint with the fastening screw (28) is arranged between the butt plate (82) and the side wall of the through groove (81), and the reset force of the reset piece (83) faces to the adjusting screw (26).

6. A milling cutter disc for machining according to claim 5, wherein: a sleeve (7) penetrates through the through groove (81), a first through hole (71) for the screw rod of the fastening screw (28) to penetrate through is formed in the sleeve (7), and the sleeve (7) is located between the nut of the fastening screw (28) and the bottom wall of the first counter sink (27).

7. A milling cutter disc for machining according to claim 6, wherein: both ends of the blade (25) are respectively provided with at least one tool nose (251), and both sides of the fastening screw (28) are respectively provided with the abutting plate (82) and the resetting piece (83).

8. A milling cutter disc for machining according to claim 7, wherein: blade (25) are two-sided structure, sleeve (7) are "T" shape, two sleeve (7) respectively in the both sides of blade (25) insert logical groove (81), and two screw thread or joint form between sleeve (7) are used for restricting "worker" style of calligraphy structure of butt joint board (82).

9. A milling cutter disc for machining according to claim 3, wherein: the tool tip (251) of the blade (25) is in a welding type.

10. A milling cutter disc for machining according to claim 3, wherein: the two opposite side surfaces of the blade (25) are provided with a tool nose (251) and an inclined surface (252).

Images