CN211516204U - High-efficient and low in maintenance cost's milling cutter - Google Patents

Abstract

The utility model discloses a high-efficiency milling cutter with low maintenance cost, which relates to the technical field of milling cutters and aims to solve the technical problems of higher maintenance cost, large cutting force and large milling machine power of the milling cutter, and the technical proposal is characterized in that the milling cutter comprises an installation shaft and a cutter body fixedly sleeved on the installation shaft, wherein the cutter body comprises a plurality of splitting discs, all the splitting discs are sequentially arranged along the axial direction of the installation shaft, the outer circumferential side wall of each splitting disc is provided with a mounting groove, and an inherent milling cutter blade is embedded in the mounting groove; because the milling cutter consists of a plurality of milling cutter blades, the local milling cutter blades are replaced, the waste of the milling cutter blades is reduced, and the maintenance cost is greatly reduced; meanwhile, the milling cutter blades are respectively contacted with the processed products, so that the cutting force is greatly reduced, and the power of the milling machine is reduced.

Description

High-efficient and low in maintenance cost's milling cutter

Technical Field

The utility model relates to a milling cutter technical field, more specifically say, it relates to a high-efficient and low in maintenance cost's milling cutter.

Background

A milling cutter is a rotating tool for milling machining having one or more cutter teeth. The milling cutter is mainly used for processing planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine.

As shown in fig. 1, the conventional milling cutter includes a mounting shaft 1 and a cutter body 3 fixed on the mounting shaft 1, wherein a milling cutter 32 is fixedly embedded in an outer circumferential side wall of the cutter body 3; when a workpiece is machined, the mounting shaft 1, the cutter body 3 and the milling cutter 32 rotate together, the milling cutter 32 contacts the workpiece, and mills the outer surface of the workpiece until a desired shape is machined on the workpiece.

However, in the milling process, when the milling cutter 32 is broken, the whole milling cutter 32 is discarded; the milling cutter 32 has high hardness, so that the processing cost is high, the price of the milling cutter 32 is high, the maintenance cost of the milling cutter is increased, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a milling cutter that high efficiency and cost of maintenance are low, its advantage that has effective reduction cost of maintenance.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a high-efficient and milling cutter that cost of maintenance is low, includes that installation axle and fixed cover establish at the epaxial cutter body of installation, the cutter body includes a plurality of split dishes, and is whole the split dish sets gradually along the installation axle axial, the outer lateral wall of split dish is provided with the mounting groove, the embedded inherent milling cutter piece in mounting groove.

By adopting the technical scheme, when one of the milling blades is damaged, the milling blade is detached from the mounting groove, and then a new milling blade is embedded, so that the local milling blade is replaced; because the milling cutter consists of a plurality of milling cutter blades, the local milling cutter blades are replaced, the waste of the milling cutter blades is reduced, and the maintenance cost is greatly reduced. In addition, the milling cutter blade is in a sectional type, so that the length of the milling cutter blade is shortened, and the milling cutter blade is convenient to machine.

Furthermore, a limit key groove is formed in the outer side wall of the mounting shaft along the axial direction of the mounting shaft, a fixed key is arranged in the limit key groove, a main buckle key groove is formed in the inner circumferential side wall of each disassembling disc, and the inner side wall of each main buckle key groove is attached to the outer side wall of the fixed key; when the fixed key is buckled with all the main buckling key grooves, the adjacent milling cutter pieces are jointed.

Through adopting above-mentioned technical scheme, buckle whole owner and detain keyway and fixed key mutually, guarantee that whole are laminated mutually along the adjacent milling cutter of installation axle axial, and milling cutter piece is arranged neatly to be convenient for to the grinding of whole milling cutter pieces.

Furthermore, one side, located at the main buckling key groove, of the inner circumferential side wall of each splitting disc is provided with an auxiliary buckling key groove, and when the fixed key is buckled with all the auxiliary buckling key grooves, the adjacent milling cutter blades are in a separated state along the circumferential direction of the splitting disc.

By adopting the technical scheme, when the cutter body rotates, the milling cutter blades are respectively contacted with a product, so that the milling force of the cutter body is reduced; thereby reducing the vibration of the milling cutter and improving the surface quality. In addition, the contact area of the milling blade with air is increased, so that the whole heat dissipation of the milling blade is facilitated.

Furthermore, an end wall of one end of the milling cutter blade is provided with an extension cutter, and the extension cutter is positioned on one side of the milling cutter blade far away from the bottom wall of the mounting groove; and the other end of the milling cutter blade is provided with a butt joint groove which is inosculated with the corresponding extension cutter for the insertion of the extension cutter.

Through adopting above-mentioned technical scheme, set up a set of extension sword at least, extend the sword and follow split dish axial extension to make two adjacent split dish seamless docks, the extension sword can mill all the other several groups of milling cutter pieces adjacent along the installation axle axial because the product arch that the tip wearing and tearing caused, and is better to the processing connectivity of product, improves the surface quality of product.

Further, the mounting groove is a dovetail groove.

By adopting the technical scheme, the mounting groove is in a dovetail groove shape, so that the milling cutter blade is fixed in the splitting disc along the radial direction of the splitting disc; effectively prevent milling cutter piece from being thrown away in the mounting groove.

Furthermore, one end of the mounting shaft is provided with a limiting ring, and the other end of the mounting shaft is in threaded connection with a locking nut; all the split discs are located between the limiting ring and the locking nut.

By adopting the technical scheme, the locking nut is screwed down, so that the quick fixation of all the split discs is realized; and (4) detaching the locking nut, so that all the split discs are quickly taken out.

Furthermore, the mounting shaft is arranged between the splitting disc and the locking nut and is sleeved with an adjusting washer.

By adopting the technical scheme, the diameter of the part of the threaded connection between the mounting shaft and the locking nut is smaller than that of the part of the mounting shaft sleeved with the splitting disc; in order to ensure that the locking nut can be tightly abutted to the splitting disc, the adjusting washer is placed between the locking nut and the splitting disc, and the excircle of the adjusting washer is larger than that of the locking nut, so that the locking nut is tightly abutted to the splitting disc.

Furthermore, the mounting shaft is in threaded connection with a locknut which can be abutted against the locknut; the locknut is positioned on one side of the locknut far away from the direction of the limiting ring.

Through adopting above-mentioned technical scheme, when locknut and lock nut offset, lock nut received along the axial effort of installation axle to make lock nut's internal thread and the external screw thread of installation axle along the interlock of installation axle axial, improve lock nut's fixed effect.

Further, two adjacent outer circumference lateral walls of the split disc are located at the joint of the two adjacent outer circumference lateral walls and are provided with a knife containing groove together, and a transition knife is fixedly arranged in the knife containing groove.

By adopting the technical scheme, the transition cutter is used for correcting the cutter points of two adjacent milling cutter blades along the axial direction of the mounting shaft, so that the bulge of the product is caused; the transition cutter is manufactured independently, so that the structure of the milling cutter blade is simplified, and the manufacturing cost of the milling cutter blade is reduced; meanwhile, extension knives do not need to be manufactured on two sides of the milling cutter blade, and damage to the extension knives is avoided.

To sum up, the utility model discloses following beneficial effect has:

1. by adopting the sectional milling cutter blades, the local milling cutter blades can be replaced, the maintenance cost is effectively reduced, and meanwhile, the milling cutter blades are sequentially abutted against products, so that the vibration of the milling cutter is reduced, and the power of the milling machine is reduced;

2. the arrangement of the extension cutter on one end wall of the milling cutter blades can mill the convex part of the product caused by the abrasion of the cutter point of the rest groups of milling cutter blades which are adjacent along the axial direction of the mounting shaft, thereby improving the surface quality of the processed product;

3. and the transition cutter is arranged at the position adjacent to the splitting disc, the transition cutter is used for correcting the cutter points of two adjacent milling cutter blades along the axial direction of the mounting shaft, so that the product is bulged, and meanwhile, an extension cutter is not required to be manufactured.

Drawings

FIG. 1 is a schematic structural diagram of a milling cutter in the prior art;

FIG. 2 is a schematic view showing the construction of a milling cutter of embodiment 1 with high efficiency and low maintenance cost;

FIG. 3 is a schematic diagram of an embodiment for embodying a split tray configuration;

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

FIG. 5 is a schematic disassembly diagram illustrating an installation relationship between a disassembly disc and a mounting shaft in an embodiment;

FIG. 6 is a schematic view showing the construction of a milling cutter according to embodiment 2, which is efficient and inexpensive to maintain;

fig. 7 is an exploded view showing the installation relationship between the pocket and the transition knife in example 2.

In the figure: 1. installing a shaft; 11. a limit key groove; 12. a limiting ring; 13. locking the nut; 14. a locknut; 3. a cutter body; 31. disassembling the disc; 311. a main buckle key groove; 312. mounting grooves; 313. A cutter installing groove; 314. A secondary buckle key groove; 32. milling a cutter; 4. milling a blade; 41. an extension knife; 43. A butt joint groove; 5. a fixed key; 6. a transition knife; 8. an adjusting washer; 9. and a wedge.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

a high-efficiency milling cutter with low maintenance cost is disclosed, referring to fig. 2, which comprises a mounting shaft 1 and a cutter body 3, wherein the cutter body 3 is fixedly sleeved on the mounting shaft 1; the cutter body 3 includes a plurality of split disks 31, and all split disks 31 set gradually along the axial of installation axle 1.

Referring to fig. 3 and 4, the outer circumferential side wall of the split plate 31 is provided with a mounting groove 312, and the mounting groove 312 penetrates through the thickness direction of the split plate 31; the inherent milling cutter blade 4 is embedded in the mounting groove 312, and the mounting groove 312 is a dovetail groove, so that the milling cutter blade 4 is prevented from being thrown out when the milling cutter runs; when milling cutter piece 4 inserts in mounting groove 312, insert slide wedge 9 at mounting groove 312 diapire simultaneously, utilize the displacement of slide wedge 9 to with milling cutter piece 4 to keeping away from mounting groove 312 diapire direction and moving, thereby milling cutter piece 4 offsets tightly with mounting groove 312 inside wall, thereby realizes that it is fixed.

Referring to fig. 3 and 5, the outer side wall of the mounting shaft 1 is provided with a limit key groove 11 along the axial direction thereof, a fixing key 5 is arranged in the limit key groove 11, the inner circumferential side wall of each splitting disc 31 is provided with a main fastening key groove 311, the inner side wall of the main fastening key groove 311 is attached to the outer side wall of the fixing key 5, when the fixing key 5 is fastened to all the main fastening key grooves 311, adjacent milling blades 4 are attached to each other, so that the milling blades 4 are arranged uniformly, and all the milling cutters can be polished conveniently.

Referring to fig. 3 and 5, each of the detaching discs 31 is provided at an inner circumferential side wall thereof with a sub-catching key groove 314, the sub-catching key groove 314 being located at one side of the main catching key groove 311; the angle between the main buckle key slot 311 and the auxiliary buckle key slot 314 on each split disc 31 and the axis of the split disc 31 is different; when the main fastening key slot 311 on each split disk 31 is simultaneously fastened with the fixed key 5, the milling cutter blades 4 are arranged in a consistent manner, so that the milling cutter blades 4 can be trimmed and ground conveniently; when the secondary snap key groove 314 on each splitting disc 31 is simultaneously snapped with the fixed key 5, the adjacent milling cutter blades 4 are in a separated state along the circumferential direction of the splitting disc 31, so that the milling cutter blades 4 are sequentially contacted with the product, the cutting force is reduced, and the vibration of the milling cutter is reduced.

Referring to fig. 2 and 4, an end wall of one end of the milling cutter blade 4 is provided with an extension cutter 41, the extension cutter 41 is located on one side of the milling cutter blade 4 away from the bottom wall of the mounting groove 312, the extension cutter 41 and the milling cutter blade 4 are integrally formed, and the other end of the milling cutter blade 4 is provided with a butt-joint groove 43 to be matched with the corresponding extension cutter 41 for the insertion of the extension cutter 41; thereby ensuring the processing quality of the product.

Referring to fig. 5, one end of the mounting shaft 1 is provided with a limiting ring 12, the other end of the mounting shaft is in threaded connection with a locking nut 13, and the diameter of the threaded connection part of the locking nut 13 on the mounting shaft 1 is small, so that one end of the mounting shaft 1 close to the locking nut 13 is in a step shape; the total split disks 31 are located between the stop collar 12 and the lock nut 13, so that the total split disks 31 are clamped and fixed by the lock nut 13 and the stop collar 12.

Referring to fig. 5, installation axle 1 is located and is equipped with adjusting washer 8 between split dish 31 and lock nut 13, because installation axle 1 excircle is little with 13 threaded connection part diameters of lock nut, split dish 31 is located the great one end department of installation axle 1 diameter, in order to guarantee that lock nut 13 can be fine with split dish 31 support tightly, through adjusting washer 8's setting, lock nut 13 offsets with adjusting washer 8, and then adjusting washer 8 offsets with split dish 31, realize locking nut 13 and 31 supporting tightly of split dish.

Referring to fig. 5, the mounting shaft 1 is in threaded connection with a locknut 14, and the locknut 14 is located on one side of the locknut 13 away from the direction of the limiting ring 12; the locknut 14 can abut against the locknut 13, so that the internal thread of the locknut 13 and the external thread of the mounting shaft 1 are meshed along the axial direction of the mounting shaft 1, and the locking effect is improved.

The working principle is as follows:

when one of the milling blades 4 is damaged by edge breakage and the like, the locknut 14, the locknut 13 and the adjusting washer 8 are sequentially removed from the mounting shaft 1.

Then, the split disks 31 will be removed one by one until the split disk 31 with the damaged milling insert 4 is removed; at this time, the tapered wedge 9 is knocked in the thickness direction of the splitting plate 31, so that the damaged milling blade 4 is pushed out from the mounting groove 312; and then, inserting a new milling cutter blade 4 into the mounting groove 312 along the thickness direction of the splitting disc 31, mounting the inclined wedge 9, and striking tightly to mount the milling cutter blade 4.

Then, the splitting discs 31 are sequentially sleeved on the mounting shaft 1, then the adjusting washer 8 is sleeved on the mounting shaft 1, and then the locking nut 13 is in threaded connection with the mounting shaft 1, so that all the splitting discs 31 are fixed; and the locknut 14 is connected on the mounting shaft 1 by screw thread, and the locknut 14 is pressed against the locking nut 13.

Because the milling cutter is split into a plurality of milling cutter blades 4, when one of the milling cutter blades is damaged, only the local milling cutter blade 4 is replaced, and the aim of effectively reducing the maintenance cost is fulfilled.

When the main fastening key slot 311 on each split disk 31 is simultaneously fastened with the fixed key 5, the milling cutter blades 4 are arranged in a consistent manner, so that the milling cutter blades 4 can be trimmed and ground conveniently; when the secondary snap key groove 314 on each splitting disc 31 is simultaneously snapped with the fixed key 5, the adjacent milling cutter blades 4 are in a separated state along the circumferential direction of the splitting disc 31, so that the milling cutter blades 4 are sequentially contacted with the product, the cutting force is reduced, and the vibration of the milling cutter is reduced.

Example 2:

referring to fig. 6, the present embodiment is different from embodiment 1 in that: in this embodiment, the transition knife 6 is used instead of the extension knife 41 (see fig. 4).

Referring to fig. 6 and 7, the knife loading groove 313 is jointly arranged at the joint of the outer circumferential side walls of two adjacent splitting discs 31, and the transition knife 6 is arranged in the knife loading groove 313; the transition cutter 6 is positioned between two adjacent milling cutter blades 4 in the axial direction of the mounting shaft 1, so that the outer surface of a product to be processed is in smooth transition, and the surface processing quality is improved.

Referring to fig. 7, an embedded block 7 is fixedly arranged in the tool accommodating groove 313 through a screw, the screw is in threaded connection with one of the split disks 31, and the embedded block 7 is positioned on one side of the transition knife 6 along the circumferential direction of the split disk 31; one side wall of the tool containing groove 313 along the circumferential direction of the splitting disc 31 is inclined, and the side wall of the transition tool 6 towards the embedding and fixing block 7 is inclined; the section of the embedded block 7 in the thickness direction of the transition knife 6 is trapezoidal, and after the embedded block 7 is fixed by screws, two side walls of the embedded block 7 are respectively abutted against the inner side wall of the knife containing groove 313 and the transition knife 6, so that the fixation of the transition knife 6 is realized, and the transition knife 6 is prevented from being thrown out due to centrifugal force.

The working principle is as follows:

when a workpiece is machined, the milling blade 4 mills the surface of the workpiece; meanwhile, the transition cutter 6 processes a bulge part between two adjacent milling cutter blades 4 along the axial direction of the mounting shaft 1 of the workpiece, which is generated due to the transitional abrasion of the cutter tips of the milling cutter blades 4, so that the surface quality of the workpiece is ensured.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (9)

1. The utility model provides a high-efficient and low in maintenance cost's milling cutter, includes that installation axle (1) and fixed cover establish cutter body (3) on installation axle (1), its characterized in that: the cutter body (3) include a plurality of split disks (31), and are whole split disk (31) set gradually along installation axle (1) axial, the outer circumference lateral wall of split disk (31) is provided with mounting groove (312), inherent milling cutter piece (4) are embedded in mounting groove (312).

2. An efficient and low maintenance milling cutter according to claim 1 wherein: the outer side wall of the mounting shaft (1) is provided with a limit key groove (11) along the axial direction of the mounting shaft, a fixed key (5) is arranged in the limit key groove (11), the inner circumferential side wall of each splitting disc (31) is provided with a main buckle key groove (311), and the inner side wall of the main buckle key groove (311) is attached to the outer side wall of the fixed key (5); when the fixed key (5) is buckled with all the main buckle key grooves (311), the adjacent milling cutter blades (4) are jointed.

3. An efficient and low maintenance milling cutter according to claim 2 wherein: and one side, located at the main buckling key groove (311), of the inner circumferential side wall of each splitting disc (31) is provided with an auxiliary buckling key groove (314), and when the fixed key (5) is buckled with all the auxiliary buckling key grooves (314), the adjacent milling blades (4) are in a separated state along the circumferential direction of the splitting disc (31).

4. An efficient and low maintenance milling cutter according to claim 3 wherein: an end wall of one end of the milling cutter blade (4) is provided with an extension cutter (41), and the extension cutter (41) is positioned on one side of the milling cutter blade (4) far away from the bottom wall direction of the mounting groove (312); and the other end of the milling cutter blade (4) is provided with a butt joint groove (43) which is inosculated with the corresponding extension cutter (41) and is used for inserting the extension cutter (41).

5. An efficient and low maintenance milling cutter according to claim 1 wherein: the mounting groove (312) is a dovetail groove.

6. An efficient and low maintenance milling cutter according to claim 1 wherein: one end of the mounting shaft (1) is provided with a limiting ring (12), and the other end of the mounting shaft is in threaded connection with a locking nut (13); all the split discs (31) are located between the limiting ring (12) and the locking nut (13).

7. An efficient and low maintenance milling cutter according to claim 6 wherein: the installation axle (1) is located and is equipped with adjusting washer (8) between split disc (31) and lock nut (13).

8. An efficient and low maintenance milling cutter according to claim 7 wherein: the mounting shaft (1) is in threaded connection with a locknut (14) which can abut against the locking nut (13); the locknut (14) is positioned on one side of the locknut (13) far away from the direction of the limiting ring (12).

9. An efficient and low maintenance milling cutter according to claim 1 wherein: the outer circumferential side walls of two adjacent splitting discs (31) are positioned at the joint of the outer circumferential side walls and are provided with a knife containing groove (313), and a transition knife (6) is fixedly arranged in the knife containing groove (313).

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