CN217192840U

CN217192840U - Quick-change milling cutter head

Info

Publication number: CN217192840U
Application number: CN202221086897.0U
Authority: CN
Inventors: 卜学军; 陈燕楠; 田晓奇
Original assignee: Hangzhou Chai Tools Co ltd
Current assignee: Hangzhou Chai Tools Co ltd
Priority date: 2022-05-05
Filing date: 2022-05-05
Publication date: 2022-08-16
Anticipated expiration: 2032-05-05

Abstract

The application relates to a quick-change milling cutter head, which is detachably connected with a cutter handle and comprises a cutter head, a fixing bolt, a quick-change gasket and a milling cutter positioning piece; the cutter head is axially provided with a core shaft hole, the quick-change gasket is axially provided with a first through hole, the quick-change gasket is placed on one side of the cutter head, which is far away from the cutter handle, and the fixing bolt penetrates through the first through hole and the core shaft hole to be in threaded connection with the cutter handle so as to fix the cutter head and the cutter handle; the quick-change gasket is also provided with a notch communicated with the first through hole, so that the quick-change gasket can be taken out along the radial direction of the cutter head; the diameter of the mandrel hole is larger than that of the head of the fixing bolt, the outer diameter of the quick-change gasket is larger than that of the mandrel hole, and the diameter of the first through hole is smaller than that of the head of the fixing bolt; the milling cutter positioning piece is detachably connected with the cutter head, and a mounting groove for mounting the milling cutter is formed in the milling cutter positioning piece. This application has the function of dismantling milling cutter dish fast.

Description

Quick-change milling cutter head

Technical Field

The application relates to the technical field of milling, in particular to a quick-change milling cutter disc.

Background

Milling is a mechanical processing method for processing the surface of an object by using a milling cutter as a cutter. In milling, the milling head is an important component. Generally, the milling cutter disc is fixedly installed on the cutter handle, and if the milling cutter disc needs to be disassembled, the cutter handle needs to be disassembled from the milling mechanism, so that the disassembling process is very complicated.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the dismantlement of milling cutter dish, this application provides a quick change type milling cutter dish.

The application provides a quick change milling cutter dish adopts following technical scheme:

a quick-change milling cutter head is detachably connected with a cutter handle and comprises a cutter head, a fixing bolt, a quick-change gasket and a milling cutter positioning piece; the cutter head is axially provided with a core shaft hole, the quick-change gasket is axially provided with a first through hole, the quick-change gasket is placed on one side of the cutter head, which is far away from the cutter handle, and the fixing bolt penetrates through the first through hole and the core shaft hole to be in threaded connection with the cutter handle so as to fix the cutter head and the cutter handle; the quick-change gasket is also provided with a notch communicated with the first through hole, so that the quick-change gasket can be taken out along the radial direction of the cutter head; the diameter of the mandrel hole is larger than that of the head of the fixing bolt, the outer diameter of the quick-change gasket is larger than that of the mandrel hole, and the diameter of the first through hole is smaller than that of the head of the fixing bolt; the milling cutter positioning piece is detachably connected with the cutter head, and a mounting groove for mounting the milling cutter is formed in the milling cutter positioning piece.

Through adopting above-mentioned technical scheme, place the quick change gasket in the one side that the handle of a knife was kept away from to the blade disc, fixing bolt passes the first through-hole of quick change gasket and the dabber hole threaded connection of blade disc on the handle of a knife, because the external diameter of quick change gasket is greater than the diameter in dabber hole, the diameter of first through-hole is less than the diameter of fixing bolt head, the blade disc can be fixed with the handle of a knife this moment. When the cutter head needs to be disassembled, the quick-change gasket is taken out along the radial direction of the cutter head, and the cutter head can be directly disassembled from the cutter handle because the diameter of the mandrel hole is larger than that of the head of the fixing bolt. Through adopting the quick change gasket, when dismantling the blade disc, need not to dismantle the handle of a knife from the milling machine, dismantle more swiftly convenient.

Optionally, still include the reinforcement gasket, the second through-hole that supplies fixing bolt to pass is seted up to the reinforcement gasket axial, the reinforcement gasket is installed in the one side that the blade disc was kept away from to the quick change gasket, the diameter of reinforcement gasket is less than the diameter in core shaft hole.

By adopting the technical scheme, the looseness of the quick-change gasket and the fixing bolt is reduced by additionally arranging the reinforcing gasket, and the stability of milling operation is improved.

Optionally, the device further comprises a fixing component; the milling cutter positioning piece penetrates through the mounting groove and is fixed on the cutter head through the fixing component; the fixing assembly comprises a first bolt and a second bolt, and the first bolt and the second bolt are both in threaded connection with the cutter head and are used for fixing the milling cutter positioning piece in the mounting groove; the first bolt and the second bolt are perpendicular to the axis of the cutter head, the first bolt is arranged along the radial direction of the cutter head, and the second bolt is perpendicular to the first bolt.

By adopting the technical scheme, after the milling cutter positioning piece is installed on the cutter head, the first bolt and the second bolt respectively support the milling cutter positioning piece from different directions, so that the displacement of the milling cutter positioning piece is reduced, and the stability of milling operation is improved.

Optionally, the mounting groove penetrates through the cutter disc.

Through adopting above-mentioned technical scheme, when the milling cutter setting element was dismantled, the milling cutter setting element may be difficult to take out from the mounting groove because the joint is too tight, offers the mounting groove for through the groove, can be convenient for take out the milling cutter setting element through exerting pressure in one end.

Optionally, the milling cutter positioning piece is provided with a plurality of milling cutter positioning pieces, and the distances from the milling cutter positioning pieces to the axis of the cutter head are different.

By adopting the technical scheme, when the hole is drilled, if only one milling cutter mills the workpiece, the moving distance of the cutter handle is longer, and the cutter handle is easy to collide with the workpiece for the workpiece with smaller aperture. A plurality of milling cutter positioning pieces with different distances from the axis are arranged on the cutter head, so that the moving distance of the cutter handle during the via hole milling operation can be reduced, and the possibility of collision is reduced.

Optionally, the milling cutter setting element includes integrated into one piece's installation department and location portion, the installation department wears to establish in the mounting groove, location portion and blade disc terminal surface butt.

Through adopting above-mentioned technical scheme, the installation department wears to establish in the mounting groove, through fixed subassembly, can fix the milling cutter setting element in the blade disc. The positioning part is abutted to the end face of the cutter head, so that the relative position of the milling cutter positioning piece and the cutter head is limited, the mounting precision is improved, and the operation stability of the milling cutter positioning piece is improved.

Optionally, the positioning portion is further provided with a limiting groove, and the limiting groove is formed in an included angle position where the positioning portion is abutted to the end face of the cutter head.

By adopting the technical scheme, the included angle between the end face of the cutter head and the butt joint of the positioning part is provided with the limiting groove, so that the sharp corner of the end face of the cutter head can not be in direct contact with the milling cutter positioning part, the limiting groove reduces the collision between the cutter head and the milling cutter positioning part in the installation and positioning process, and the abrasion between the milling cutter positioning part and the cutter head is reduced.

Optionally, the positioning portion is provided with an avoiding groove for avoiding the cutting waste.

Through adopting above-mentioned technical scheme, dodge the groove and offer the one end of installing milling cutter, milling cutter when milling the operation, the cutting waste material can fly out from dodging the groove, reduces the piling up of cutting waste material.

Optionally, the cutter head is provided with a weight reduction groove.

By adopting the technical scheme, the weight of the quick-change milling cutter head is reduced, the disassembly difficulty of the quick-change milling cutter head is reduced, and the disassembly efficiency is improved.

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

1. the quick mounting and dismounting of the quick-change milling cutter head can be completed by mounting and dismounting the quick-change gasket, the cutter handle does not need to be dismounted from the milling machine, and the dismounting is more quick and convenient;

2. a plurality of milling cutter positioning pieces with different distances from the axis of the cutter head are arranged on the cutter head, so that the moving distance of the cutter handle in via hole milling is reduced, and the possibility of collision between the cutter handle and a workpiece is reduced;

3. the milling cutter positioning piece is provided with the avoiding groove, so that the accumulation of cutting waste materials in the milling process can be avoided.

Drawings

Fig. 1 is a schematic view of a quick-change milling cutter head.

Fig. 2 is an exploded view of a quick-change milling cutter head.

Fig. 3 is a schematic structural view of a cutter head in a quick-change milling cutter head.

Fig. 4 is a schematic structural view of a milling cutter positioning member in a quick-change milling cutter head.

Fig. 5 is an enlarged view of a portion a of fig. 2, and is mainly used for showing the structure of the fixing member.

Fig. 6 is a schematic structural view of a quick-change shim in a quick-change milling cutter head.

Fig. 7 is a schematic view of a usage state of the quick-change type milling cutter disc via hole milling.

Description of reference numerals: 100. a cutter head; 110. a weight reduction groove; 120. a mandrel aperture; 130. mounting grooves; 200. a knife handle; 210. a lug of the knife handle; 211. a blind hole is formed in the cutter handle; 300. quickly replacing the gasket; 310. a first through hole; 320. a notch; 400. reinforcing the gasket; 410. a second through hole; 500. a milling cutter positioning piece; 510. an installation part; 520. a positioning part; 521. installing a groove; 522. a limiting groove; 523. an avoidance groove; 1. fixing the bolt; 2. a first bolt; 3. provided is a milling cutter.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The application discloses quick change milling cutter dish.

Referring to fig. 1 and 2, the quick-change milling cutter head comprises a cutter head 100, a milling cutter positioning piece 500, a fixing assembly, a quick-change gasket 300, a reinforcing gasket 400 and a fixing bolt 1.

Referring to fig. 2, a quick-change milling cutter head is used in conjunction with a tool shank 200. The tool holder 200 comprises a tool holder projection 210 and a cylinder, the cylinder is of a cylindrical structure and is used for being connected with a milling machine, the tool holder projection 210 is also of a cylindrical structure, the diameter of the tool holder projection 210 is smaller than that of the cylinder, and a tool holder blind hole 211 is coaxially formed in the tool holder projection 210.

Referring to fig. 2 and 3, the cutter head 100 may be disk-shaped. In this embodiment, the cutter 100 is provided with three weight-reducing slots 110 to reduce the weight of the cutter 100. The cutter head 100 is provided with a core shaft hole 120 along the axial center, the core shaft hole 120 is a through hole, the cutter handle projection 210 is arranged in the core shaft hole 120 in a penetrating way, and the diameter of the column body is larger than that of the core shaft hole, so that the cutter head 100 is arranged on the cutter handle 200. In this embodiment, three mounting grooves 130 for mounting the milling cutter positioning pieces 500 are formed in the cutter disc 100, the mounting grooves 130 penetrate through the cutter disc 100, and the distances from each milling cutter positioning piece 500 to the axis of the cutter disc 100 are different, so that the moving distance of the cutter handle 200 during the via hole milling operation is reduced, and the possibility of collision between the cutter handle 200 and a workpiece is reduced.

Referring to fig. 4 and 5, the milling cutter positioning member 500 includes a mounting part 510 and a positioning part 520 which are integrally formed. The installation department 510 is the cuboid structure that can insert the mounting groove 130, and the installation department 510 passes through fixed subassembly to be installed in the mounting groove 130, and fixed subassembly includes first bolt 2 and second bolt, and first bolt 2 and second bolt all are perpendicular to blade disc 100 axis, and first bolt 2 radially sets up along blade disc 100, and the first bolt 2 of second bolt perpendicular to. The positioning part 520 is provided with an installation groove 521 for installing the milling cutter 3; in this embodiment, the cross-sectional area of the positioning portion 520 is larger than that of the mounting portion 510, so that the positioning portion 520 can be abutted against the end surface of the cutter disc 100, and the positioning of the milling cutter positioning piece 500 is realized. A limit groove 522 is formed at the joint of the positioning portion 520 and the mounting portion 510, and the limit groove 522 is located at an included angle between the positioning portion 520 and the end surface of the cutter head 100, so as to reduce the collision between the cutter head 100 and the milling cutter positioning piece 500 during the mounting process. In the view shown in fig. 4, the height of the left end of the positioning portion 520 is greater than the height of the right end thereof, so that an escape groove 523 for escaping the cutting scraps is formed between the positioning portion 520 and the workpiece.

Referring to fig. 2 and 6, the quick-change shim 300 is placed on the side of the cutter head 100 away from the cutter handle 200, and the outer diameter of the quick-change shim 300 is larger than the diameter of the spindle hole 120. The quick-change gasket 300 is provided with a first through hole 310 and a notch 320 communicated with the first through hole 310, the diameter of the first through hole 310 is smaller than that of the head of the fixing bolt 1, and the quick-change gasket 300 can be radially taken out along the cutter head 100. In this embodiment, the quick-change shim 300 is generally U-shaped, and in other embodiments, the quick-change shim 300 may have other geometric shapes so long as the quick-change shim 300 can be removed.

Referring to fig. 2, a reinforcing gasket 400 may be added to the side of the quick-change gasket 300 away from the cutter head 100, and the diameter of the reinforcing gasket 400 is smaller than that of the spindle hole 120. In this embodiment, the reinforcing spacer 400 is a cylindrical spacer, and the reinforcing spacer 400 is provided with a second through hole 410 along the axial direction.

Referring to fig. 2, the diameter of the head of the fixing bolt 1 is smaller than that of the spindle hole 120. The fixing bolt 1 sequentially penetrates through the second through hole 410, the first through hole 310 and the mandrel hole 120, and is in threaded connection with the inside of the handle blind hole 211 of the handle 200.

The application relates to an implementation principle of quick change milling cutter dish does:

with reference to figures 2 and 7 of the drawings,

when the via hole is milled, the milling cutter positioning piece 500 is firstly installed on the cutter disc 100 through the fixing component, and then the cutter disc 100 is installed on the cutter handle 200. The quick-change gasket 300 and the reinforcing gasket 400 are sequentially placed on the side, away from the tool holder 200, of the tool disc 100. The fixing bolt 1 penetrates through the second through hole 410, then penetrates through the first through hole 310, finally penetrates through the spindle hole 120, and is in threaded connection with the cutter handle 200, so that the cutter head 100 is integrally fixed. When the cutter head 100 needs to be turned over, the quick-change gaskets 300 are radially drawn out along the cutter head 100, and because the diameter of the core shaft hole 120 is larger than that of the head of the fixing bolt 1, and the diameter of the reinforcing gasket 400 is smaller than that of the core shaft hole 120, the cutter head 100 can be directly taken out in the axial direction, the cutter head 100 is turned over, then the cutter head 100 is installed on the cutter handle 200, the quick-change gaskets 300 are clamped in, and the cutter head 100 after turning is fixed. By using the structure, the milling cutter head can be conveniently detached, the replacement process is simplified, and the time for installation and detachment is saved.

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: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a quick change milling cutter dish which characterized in that: the cutter comprises a cutter head (100), a fixing bolt (1), a quick-change gasket (300) and a milling cutter positioning piece (500), wherein the cutter head is detachably connected with the cutter handle (200); a core shaft hole (120) is axially formed in the cutter head (100), a first through hole (310) is axially formed in the quick-change gasket (300), the quick-change gasket (300) is placed on one side, away from the cutter handle (200), of the cutter head (100), and the fixing bolt (1) penetrates through the first through hole (310) and the core shaft hole (120) to be in threaded connection with the cutter handle (200) so as to fix the cutter head (100) and the cutter handle (200); the quick-change gasket (300) is also provided with a notch (320) communicated with the first through hole (310), so that the quick-change gasket (300) can be radially taken out along the cutter head (100); the diameter of the mandrel hole (120) is larger than that of the head of a fixing bolt (1), the outer diameter of the quick-change gasket (300) is larger than that of the mandrel hole (120), and the diameter of the first through hole (310) is smaller than that of the head of the fixing bolt (1); milling cutter setting element (500) can be dismantled with blade disc (100) and be connected, offer mounting groove (521) that are used for installing milling cutter (3) on milling cutter setting element (500).

2. The quick-change milling cutter disc according to claim 1, wherein: still including consolidating gasket (400), consolidate gasket (400) axial and offer second through-hole (410) that supply fixing bolt (1) to pass, consolidate gasket (400) and install the one side of keeping away from blade disc (100) in quick change gasket (300), the diameter of consolidating gasket (400) is less than the diameter in dabber hole (120).

3. The quick-change milling cutter disc according to claim 1, wherein: the device also comprises a fixing component; the cutter head (100) is axially provided with a mounting groove (130), and the milling cutter positioning piece (500) penetrates through the mounting groove (130) and is fixed on the cutter head (100) through a fixing component; the fixing assembly comprises a first bolt (2) and a second bolt, and the first bolt (2) and the second bolt are both in threaded connection with the cutter head (100) and are used for fixing the milling cutter positioning piece (500) in the mounting groove (130); first bolt (2) and second bolt all are perpendicular to blade disc (100) axis, first bolt (2) radially set up along blade disc (100), the second bolt perpendicular to first bolt (2).

4. The quick-change milling cutter disc according to claim 3, wherein: the mounting groove (130) penetrates through the cutter disc (100).

5. The quick-change milling cutter disc according to claim 3, wherein: the milling cutter positioning piece (500) is provided with a plurality of milling cutter positioning pieces (500) which are different in distance from the axis of the cutter head (100).

6. The quick-change milling cutter disc according to claim 3, wherein: milling cutter setting element (500) is including integrated into one piece's installation department (510) and location portion (520), installation department (510) are worn to establish in mounting groove (130), location portion (520) and blade disc (100) terminal surface butt.

7. The quick-change milling cutter disc according to claim 6, wherein: spacing recess (522) have still been seted up in location portion (520), spacing recess (522) are seted up in the contained angle department of location portion (520) and blade disc (100) terminal surface butt.

8. The quick-change milling cutter disc of claim 7 wherein: an avoiding groove (523) for avoiding the cutting waste is formed in the positioning portion (520).

9. The quick-change milling cutter disc according to claim 1, wherein: the cutter head (100) is provided with a weight reduction groove (110).