CN214978010U

CN214978010U - Large-scale rotor finish milling cutter dish

Info

Publication number: CN214978010U
Application number: CN202121652278.9U
Authority: CN
Inventors: 叶晓飞; 徐亮; 余华勇
Original assignee: Zhejiang Kaishan Kevin Screw Machinery Co ltd
Current assignee: Zhejiang Kaishan Kevin Screw Machinery Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2021-12-03
Anticipated expiration: 2031-07-20

Abstract

The utility model discloses a large-scale rotor finish milling cutter disc, including the blade disc body, the blade disc body includes the top disc, the top disc rigid coupling has lower blade disc, top disc and lower blade disc integrated casting shaping, the surface of top disc and lower blade disc has all circumference to set up a plurality of sword nests, interval distribution such as sword nest, the sword nest on lower blade disc surface is located between two arbitrary adjacent sword nests of top disc, sword nest bottom wall can be dismantled and be connected with lower cushion, the lateral wall face that the sword nest is close to the shaft hole can be dismantled and be connected with the side cushion; the top surface of the lower cushion block is abutted with a blade, one end of the blade is abutted with the side cushion block, one side of the blade is abutted on the side wall of the cutter nest, and the cutter nest on the lower cutter disc is deep into the surface of the upper cutter disc; one side of sword nest is equipped with the briquetting mount pad, and a plurality of briquetting mount pads are equidistant to be arranged, and the briquetting mount pad is located between two arbitrary adjacent sword nests of last blade disc, and the briquetting mount pad can be dismantled and be connected with the briquetting, briquetting and blade butt. The utility model discloses the machining precision is high, and is with low costs, convenient to popularize and use.

Description

Large-scale rotor finish milling cutter dish

Technical Field

The utility model relates to the technical field of machining, especially, relate to a large-scale rotor finish milling cutter dish.

Background

When the rotor profile of a large-scale double-screw compressor is precisely machined, the milling machining is mostly adopted because the profile size of the rotor is too large and exceeds the bearable grinding range of a grinding wheel, and the precision grade of the milling machining is mainly influenced by the profile precision of a cutter.

At present, the molded line finish machining of a large rotor mostly adopts an imported multi-piece structure cutter disc, the rotor molded lines machined by the multi-piece structure cutter disc have obvious cutter receiving traces at the intersected positions of the blades, the machining precision is seriously influenced, the machining precision can only reach +/-0.05 mm and cannot reach the machining requirement, and side and lower cutter cushions are fixed, so that the blades can only be used once, and the production cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a large-scale rotor finish milling cutter dish to solve the problem that above-mentioned prior art exists.

In order to achieve the above object, the utility model provides a following scheme: the utility model provides a large-scale rotor finish milling cutter head, which comprises a cutter head body, wherein the middle part of the cutter head body is provided with a through shaft hole, the inner side wall of the shaft hole is provided with a key groove, the cutter head body comprises an upper cutter head, the upper cutter head is fixedly connected with a lower cutter head, the upper cutter head and the lower cutter head are integrally cast, a plurality of cutter nests are circumferentially arranged on the surfaces of the upper cutter head and the lower cutter head and are distributed at equal intervals, the tool nests on the surface of the lower cutter head are positioned between any two adjacent tool nests of the upper cutter head, the knife nest on the lower knife disc extends to the surface of the upper knife disc, the bottom wall of the knife nest is detachably connected with a lower cushion block, the side wall surface of the cutter nest close to the shaft hole is detachably connected with a side cushion block, and the length of the cutter nest arranged on the upper cutter head is larger than that of the cutter nest arranged on the lower cutter head;

the top surface butt of lower cushion has the blade, one side butt of blade is in on the lateral wall of sword nest, the opposite side butt of blade has the briquetting, the one end of blade with the side cushion butt.

Preferably, one side of sword nest is equipped with the briquetting mount pad, the briquetting mount pad is seted up go up the blade disc with the surface of blade disc down, the briquetting mount pad is located arbitrary two adjacent between the sword nest, the briquetting mount pad is located one side of sword nest, can dismantle in the briquetting mount pad and be connected with a plurality of the briquetting, the briquetting with the blade butt.

Preferably, the bottom wall of the cutter nest and the side wall of the shaft hole are provided with a plurality of first threaded holes, the first threaded holes are arranged at equal intervals, the lower cushion block is provided with a plurality of tapered holes, the tapered holes correspond to the first threaded holes in the bottom wall of the cutter nest, the side cushion block is provided with a plurality of counter bores, the counter bores correspond to the first threaded holes in the side wall of the cutter nest, and the lower cushion block is connected with the cutter nest through bolts.

Preferably, the blade comprises a cutter head and a cutter handle, the cutter head is fixedly connected with the cutter handle, the cutter handle is respectively abutted to the lower cushion block and the side cushion block, one side of the cutter handle is abutted to one side of the cutter nest, and one side of the cutter handle, which is far away from the cutter nest, is abutted to the pressing block.

Preferably, the included angle between the mutually adjacent cutter pockets on the upper cutter disc and the mutually adjacent cutter pockets on the lower cutter disc is 20 degrees.

Preferably, the pressing block is a semicircular oblique angle pressing block, and the oblique angle of the semicircular oblique angle pressing block is 10 degrees.

Preferably, a round gasket is detachably connected between the bottom wall of the knife nest and the lower cushion block, and another round gasket is detachably connected between the side wall of the knife nest and the side cushion block.

Preferably, a plurality of mounting holes are formed in the pressing block mounting seat, the pressing block is mounted in the mounting holes, second threaded holes are formed in the bottom wall of the mounting holes, the pressing block is provided with connecting holes, and the connecting holes are connected with the second threaded holes through bolts.

The utility model discloses a following technological effect: the utility model provides a pair of large-scale rotor finish milling cutter dish adopts the split type sword nest structure in long short limit, and the sword nest on the lower cutter dish extends to the surface of supreme blade disc, can effectively avoid connecing the sword vestige, improves the machining precision, and detachable lower cushion, side cushion make blade reuse many times, have effectively reduced the cost of production.

Drawings

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

Fig. 1 is a front view of a large rotor finish milling cutter disc of the present invention;

fig. 2 is a side view of the large rotor finish milling cutter disc of the present invention;

FIG. 3 is a view taken along line A-A of FIG. 1;

FIG. 4 is a front view of the lower cushion block of the present invention;

fig. 5 is a front view of the blade of the present invention;

FIG. 6 is a front view of the pressing block of the present invention;

FIG. 7 is a front view of the round gasket of the present invention;

FIG. 8 is a front view of the side pad of the present invention;

fig. 9 is an overall schematic view of the present invention.

Wherein, 1, feeding a cutter head; 2. a cutter head is arranged; 3. a knife nest; 4. a lower cushion block; 5. a shaft hole; 6. side cushion blocks; 7. mounting holes; 8. a press block mounting seat; 9. briquetting; 10. a first threaded hole; 12. a cutter head; 13. a knife handle; 14. a round gasket; 15. and a second threaded hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1-9, the utility model provides a large rotor finish milling cutter head, which comprises a cutter head body, wherein a through shaft hole 5 is arranged in the middle of the cutter head body, a key groove is arranged on the inner side wall of the shaft hole 5, and the arrangement of the shaft hole 5 and the key groove is convenient for the installation and the use of the cutter head; the cutter head body comprises an upper cutter head 1, the upper cutter head 1 is fixedly connected with a lower cutter head 2, the upper cutter head 1 and the lower cutter head 2 are integrally cast and formed, a plurality of cutter nests 3 are circumferentially arranged on the surfaces of the upper cutter head 1 and the lower cutter head 2, the cutter nests 3 are distributed at equal intervals, the cutter nests 3 on the surface of the lower cutter head 2 are positioned between any two adjacent cutter nests 3 of the upper cutter head 1, the cutter nest 3 on the lower cutter disc 2 extends to the surface of the upper cutter disc 1, the bottom wall of the cutter nest 3 is detachably connected with a lower cushion block 4, the side wall surface of the cutter nest 3, which is close to the axis of the cutter disc body, is detachably connected with a side cushion block 6, the length of the cutter nest 3 arranged on the upper cutter disc 1 is larger than that of the cutter nest 3 arranged on the lower cutter disc 2, a long-short edge split type cutter nest structure is adopted, the cutter nest arranged on the upper cutter disc 1 and the cutter nest 3 arranged on the lower cutter disc 2 are not on the same straight line, and the rigidity of the cutter disc body and the blades is effectively ensured; the top surface butt of lower cushion 4 has connected the blade, one side butt of blade is on the lateral wall of sword nest 3, the opposite side butt of blade has filled up briquetting 9, the one end and the 6 butt of side cushion of blade, this embodiment adopts two formula structures of cutter body, sword nest 3 on the last blade disc 1 is not on same axis with sword nest 3 on the lower blade disc 2, can effectively increase the intensity of blade disc, sword nest 3 on the lower blade disc 2 gos deep into the surface of supreme blade disc 1, after the blade cutting of last blade disc 1, the blade of lower blade disc 2 cuts afterwards, the blade cutting mark machine cover of last blade disc 1 after the blade cutting of lower blade disc 2, can effectively promote the machining precision, lower cushion 4, side cushion 6 can be dismantled the setting, make blade reuse more than 15, briquetting 9 compresses tightly the blade, make the blade difficult not hard up.

Further optimization scheme, one side of sword nest 3 is equipped with briquetting mount pad 8, and briquetting mount pad 8 is seted up at last blade disc 1 and 2 surfaces of lower blade disc, and briquetting mount pad 8 is located between two arbitrary adjacent sword nests 3, and briquetting mount pad 8 is dismantled with briquetting 9 and is connected, briquetting 9 and blade butt, and the upper surface of briquetting mount pad 8 is less than the surface of blade disc body, and setting up of briquetting mount pad 8 can not influence the cutting of blade after making the installation of briquetting 9.

Further optimization scheme, a plurality of first screw holes 10 have all been seted up on the lateral wall that 3 diapalls of sword nest and sword nest 3 are close to shaft hole 5, a plurality of first screw holes 10 are equidistant to be arranged, a plurality of bell mouths have been seted up on lower bolster 4, the bell mouth corresponds the setting with first screw hole 10 on the 3 diapalls of sword nest, a plurality of counter bores have been seted up on the side bolster 6, a plurality of counter bores correspond the setting with first screw hole 10 on the 3 lateral walls of sword nest, use the bolt with lower bolster 4 and side bolster 6 to install in sword nest 3, be convenient for lower bolster 4 and side bolster 6 dismantle and install.

Further optimization scheme, the blade includes tool bit 12 and handle of a knife 13, tool bit 12 and handle of a knife 13 fixed connection, handle of a knife 13 respectively with lower bolster 4, side bolster 6 butt, 13 one side of handle of a knife and one side butt of sword nest 3, one side and briquetting 9 butt that sword nest 3 was kept away from to handle of a knife 13, the blade adopts combined type structure, can the purchasing cost of effectual control blade, practices thrift the fund.

According to the further optimized scheme, the included angle between the cutter nest 3 on the upper cutter head 1 and the cutter nest 3 on the lower cutter head 2 which are adjacent to each other is 20 degrees, further cutter connecting marks are avoided, and the machining precision is improved.

Further optimization scheme, briquetting 9 is semicircle formula oblique angle briquetting, and the oblique angle of semicircle formula oblique angle briquetting is 10, and when the blade cut, the blade received the effort by the processing object, and semicircle formula oblique angle briquetting was given the blade one this moment and is given the effort opposite direction by the processing object, and the effort that the size equals realizes the auto-lock function, can also effectually prevent that handle of a knife 13 from taking place not hard up in the course of working when guaranteeing to compress tightly handle of a knife 13.

Further optimization scheme, can dismantle between 3 diapalls of sword nest and the lower bolster 4 and be connected with round gasket 14, can dismantle between 3 lateral walls of sword nest and the side bolster 6 and be connected with

round gasket

14, 12 blade wearing and tearing backs of tool bit, increase round gasket 14, promote the height of tool bit 12, tool bit 12 is from new line cutting, recycles once more.

According to the further optimization scheme, the press block mounting seat 8 is provided with a plurality of mounting holes 7, press blocks 9 are mounted in the mounting holes 7, the bottom walls of the mounting holes 7 are provided with second threaded holes 15, the press blocks 9 are provided with connecting holes, and the connecting holes are connected with the second threaded holes 15 through bolts. The setting of briquetting mount pad 8 and mounting hole 7 makes briquetting 9 can not influence the blade after accomplishing the installation and normally works, and mounting hole 7 passes through bolted connection with briquetting 9, and the installation and the dismantlement of the briquetting 9 of being convenient for can fix handle of a knife 13 better simultaneously.

During the use, at first fix lower cushion 4 and side cushion 6 respectively on the diapire and the lateral wall of sword nest 3 through the bolt, with handle of a knife 13 and lower cushion 4 and side cushion 6 butt, install briquetting 9 in mounting hole 7, through the bolt fastening, the one end and the handle of a knife butt of briquetting 9, locking handle of a knife. After the cutting edge of the cutter head 12 is worn, firstly the pressing block 9 is detached, then the blade is detached, finally the lower cushion block 4 and the side cushion block 6 are detached, the round gaskets 14 are installed between the bottom wall of the lower cushion block 4 and the cutter nest 3 and between the side cushion block 6 and the side wall of the cutter nest 3, then the lower cushion block 4, the side cushion block 6, the blade and the pressing block 9 are sequentially installed in the cutter nest 3 on the surfaces of the upper cutter head 1 and the lower cutter head 2, finally the installed cutter head is installed on a cutter head shaft of a finish milling machine through the shaft hole 5, the key groove is installed corresponding to a key on the cutter head shaft of the finish milling machine, when the cutter head 12 is worn, the round gaskets 14 are additionally installed between the lower cushion block 4 and the side cushion block 6 and the cutter head body, the height of the cutter head 12 is increased, and the cutter head 12 can be reused after being cut and polished from a new line.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides a large-scale rotor finish milling cutter dish which characterized in that: including the blade disc body, shaft hole (5) have been seted up to the middle part of blade disc body, the blade disc body includes last blade disc (1), it has lower blade disc (2) to go up blade disc (1) rigid coupling, go up blade disc (1) with blade disc (2) integrated casting shaping down, go up blade disc (1) with the equal circumference in surface of lower blade disc (2) has seted up a plurality of sword nest (3), a plurality of equal interval distribution of sword nest (3), blade disc (2) surface down cutter nest (3) are located go up two arbitrary neighbours of blade disc (1) between sword nest (3), down on blade disc (2) sword nest (3) extend to go up the surface of blade disc (1), sword nest (3) diapire can be dismantled and be connected with down cushion (4), the lateral wall face that sword nest (3) are close to shaft hole (5) can be dismantled and be connected with side cushion (6), the length of the knife nest (3) arranged on the upper cutter head (1) is greater than that of the knife nest (3) arranged on the lower cutter head (2);

the top surface of the lower cushion block (4) is abutted with a blade, one side of the blade is abutted on the side wall of the cutter nest (3), the other side of the blade is abutted with a pressing block (9), and one end of the blade is abutted with the side cushion block (6).

2. The large rotor finish milling cutter disc of claim 1, wherein: one side of sword nest (3) is equipped with briquetting mount pad (8), set up in briquetting mount pad (8) go up blade disc (1) with the surface of lower blade disc (2), briquetting mount pad (8) are located arbitrary two adjacent between sword nest (3), briquetting mount pad (8) are located one side of sword nest (3), can dismantle in briquetting mount pad (8) and be connected with a plurality of briquetting (9), briquetting (9) with the blade butt.

3. The large rotor finish milling cutter disc of claim 1, wherein: sword nest (3) diapire with sword nest (3) are close to all seted up a plurality of first screw holes (10), and are a plurality of on the lateral wall in shaft hole (5) first screw hole (10) are equidistant to be arranged, a plurality of bell mouth has been seted up on lower cushion (4), the bell mouth with first screw hole (10) on sword nest (3) diapire correspond the setting, a plurality of counter sink have been seted up on side cushion (6), and are a plurality of the counter sink with on sword nest (3) lateral wall first screw hole (10) correspond the setting, side cushion (6) down cushion (4) with sword nest (3) all pass through bolted connection.

4. The large rotor finish milling cutter disc of claim 1, wherein: the blade comprises a cutter head (12) and a cutter handle (13), the cutter head (12) is fixedly connected with the cutter handle (13), the cutter handle (13) is respectively abutted against the lower cushion block (4) and the side cushion block (6), one side of the cutter handle (13) is abutted against one side of the cutter nest (3), and the cutter handle (13) is far away from one side of the cutter nest (3) and the pressing block (9) is abutted against.

5. The large rotor finish milling cutter disc of claim 1, wherein: the included angle between the cutter nest (3) on the upper cutter head (1) and the cutter nest (3) on the lower cutter head (2) which are adjacent to each other is 20 degrees.

6. The large rotor finish milling cutter disc of claim 1, wherein: the pressing block (9) is a semicircular oblique angle pressing block, and the oblique angle of the semicircular oblique angle pressing block is 10 degrees.

7. The large rotor finish milling cutter disc of claim 1, wherein: the knife nest (3) bottom wall with can dismantle between the lower cushion block (4) and be connected with round gasket (14), the knife nest (3) lateral wall with can dismantle between side cushion block (6) and be connected with in addition round gasket (14).

8. The large rotor finish milling cutter disc of claim 2, wherein: a plurality of mounting holes (7) are formed in the pressing block mounting seat (8), the pressing block (9) is mounted in the mounting holes (7), second threaded holes (15) are formed in the bottom wall of the mounting holes (7), connecting holes are formed in the pressing block (9), and the connecting holes are connected with the second threaded holes (15) through bolts.