CN213245073U - Square shoulder milling cutter - Google Patents

Abstract

A square shoulder milling cutter relates to a milling cutter. The handle of a knife top is equipped with the tool bit, the tool bit encircles central axis isogonism and is equipped with a plurality of installation wings, every installation wing top intermediate position is concave to be equipped with a lower draw-in groove, the gland lid is adorned at the tool bit top, gland edge isogonism is equipped with a plurality of pterygoid laminas, every pterygoid lamina lower surface is concave to be equipped with a draw-in groove, go up the draw-in groove and enclose synthetic round platform form cavity with lower draw-in groove, every square shoulder blade an organic whole is provided with the dop, the dop is round platform form and the cooperation card is established in the round platform form cavity that corresponds, every installation wing lies in square shoulder blade both sides arch and is provided with spacing rib, restriction square shoulder blade rotates, the perforation is seted up at the gland center, the concave screw. Can fix a position a plurality of square shoulder blades through a fastening bolt, it is very little to twist out fastening bolt side direction power of screwing in, need not to dismantle milling cutter and changes square shoulder blade again, improves and changes efficiency.

Description

Square shoulder milling cutter

Technical Field

The utility model relates to a milling cutter, especially a square shoulder milling cutter.

Background

The milling cutter is a common tool for machining, and the surface of a workpiece is milled by a milling cutter blade through high-speed rotation, so that the allowance of the workpiece is cut off.

Every square shoulder blade of traditional milling cutter all need be fixed on the tool bit with a screw, can only change after unscrewing the screw one by one when square shoulder blade needs to be changed, wastes time and energy, and the more milling cutter of square shoulder blade is more obvious. And because the process of screwing the screw needs great lateral force, the position of the milling cutter is easy to change, and the milling cutter can only be disassembled and replaced by the square shoulder blade, and then is recalibrated and installed, so that the operation efficiency is influenced, and the operation is troublesome.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a square shoulder milling cutter, it can fix a position a plurality of square shoulder blades through a fastening bolt, and the installation is more swift, and the side direction is hard very little when twisting in addition and twisting out fastening bolt, need not to change the square shoulder blade again behind the dismantlement milling cutter, improves and changes efficiency.

In order to achieve the above purpose, the utility model adopts the following technical proposal: a square shoulder milling cutter comprises a cutter handle, a cutter head, a gland and fastening bolts, wherein the top end of the cutter handle is coaxially provided with the cutter head, the cutter head and the cutter handle are integrally formed, the cutter head is provided with a plurality of mounting wings at equal angles around a central shaft of the cutter head, each mounting wing is fixedly provided with a square shoulder cutter blade, the middle position of the top end of each mounting wing is concavely provided with a lower clamping groove, the gland is coaxially covered at the top of the cutter head, the edge of the gland is provided with a plurality of wing plates at equal angles, the plurality of wing plates and the top ends of the plurality of mounting wings are arranged in a one-to-one correspondence manner, the lower surface of each wing plate is concavely provided with an upper clamping groove, the upper clamping grooves and the lower clamping grooves are arranged in a one-to-one correspondence manner, the upper clamping grooves and the lower clamping grooves are enclosed to form a round platform-shaped cavity, the inner side end of the round platform-shaped cavity is larger than, every installation wing is located square shoulder blade both sides and still protrudes respectively and is provided with limit rib, through two limit rib restriction square shoulder blade rotates, and the gland center has been seted up and has been perforated, and tool bit top central point puts the concave screw thread blind hole that is equipped with, fastening bolt passes perforate with screw thread blind hole threaded connection is with gland and tool bit fastening position.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses it has a gland to be fixed with through fastening bolt at the tool bit top, the gland edge is equipped with the pterygoid lamina with the installation wing one-to-one of tool bit, the concave draw-in groove that is equipped with down in installation wing top intermediate position of tool bit, the concave draw-in groove that is equipped with of pterygoid lamina lower surface of gland, it can enclose into a round platform form cavity to go up the draw-in groove and draw-in groove down, and square shoulder blade has also abandoned the traditional form of seting up the mounting hole, and an organic whole be provided with the dop with round platform form cavity complex round platform form, a plurality of square shoulder blades can be fixed a position to fastening bolt, the installation is more swift, and fastening bolt is coaxial with milling cutter, the screw that does not like the fixed square shoulder blade of traditional milling cutter is horizontal, the side direction is hard very little when twisting and unscrewing fastening bolt, the removal that causes.

Drawings

Fig. 1 is an axonometric view of the whole structure of the square shoulder milling cutter of the utility model;

fig. 2 is an exploded view of the square shoulder milling cutter of the present invention;

fig. 3 is an enlarged view of a portion a of fig. 2.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

The first embodiment is as follows: as shown in figures 1-3, the utility model discloses a square shoulder milling cutter, which comprises a cutter handle 1, a cutter head 2, a gland 4 and a fastening bolt 5, wherein the cutter head 2 is coaxially arranged at the top end of the cutter handle 1, the cutter head 2 and the cutter handle 1 are integrally formed, the cutter head 2 is provided with a plurality of mounting wings 2-1 surrounding the central axis at equal angles, each mounting wing 2-1 is fixed with a square shoulder blade 3, the middle position of the top end of each mounting wing 2-1 is concavely provided with a lower clamping groove 2-2, the gland 4 is coaxially covered at the top of the cutter head 2, the edge of the gland 4 is provided with a plurality of wing plates 4-1 at equal angles, the plurality of wing plates 4-1 are arranged in one-to-one correspondence with the top ends of the plurality of mounting wings 2-1, the lower surface of each wing plate 4-1 is concavely provided with an upper clamping groove 4-2, the upper clamping grooves 4-2 are arranged in, the upper clamping groove 4-2 and the lower clamping groove 2-2 enclose to form a circular truncated cone-shaped cavity, the inner side end of the circular truncated cone-shaped cavity is larger than the outer side end, the outer side end of the round table-shaped cavity is an opening side, each square shoulder blade 3 is integrally provided with a chuck 3-1, the clamping heads 3-1 are in a circular truncated cone shape and are clamped in corresponding circular truncated cone-shaped cavities in a matching mode, each mounting wing 2-1 is positioned at two sides of the square shoulder blade 3 and is provided with a limiting rib 2-3 in a protruding mode, the square shoulder blade 3 is limited to rotate by the two limit ribs 2-3, a through hole 4-3 is arranged at the center of the gland 4, a threaded blind hole 2-4 is concavely arranged at the center of the top of the cutter head 2, the fastening bolt 5 penetrates through the through hole 4-3 to be in threaded connection with the threaded blind hole 2-4, and the gland 4 and the tool bit 2 are tightly fixed in position.

The second embodiment is as follows: as shown in fig. 1 to 2, in this embodiment, a first embodiment is further described, the through hole 4-3 is a stepped hole, and the fastening bolt 5 is screwed into the blind threaded hole 2-4 and then is flush with the surface of the through hole 4-3.

Referring to fig. 1 to 3, a plurality of mounting wings 2-1 are arranged on a tool bit 2 at equal angles around a central axis thereof, a lower clamping groove 2-2 is concavely arranged at a middle position of a top end of each mounting wing 2-1, a pressing cover 4 is covered on a top portion of the tool bit 2, a plurality of wing plates 4-1 are arranged on edges of the pressing cover 4, the wing plates 4-1 are arranged in one-to-one correspondence with the top ends of the mounting wings 2-1, an upper clamping groove 4-2 is concavely arranged on a lower surface of each wing plate 4-1, the upper clamping groove 4-2 and the lower clamping groove 2-2 enclose a truncated cone-shaped cavity, a large end surface of the truncated cone-shaped cavity is positioned inside, a small end surface of the truncated cone-shaped cavity is provided with an opening for mounting a square shoulder blade 3, the square shoulder blade 3 is integrally provided with a truncated cone-shaped clamping head 3-1, the pressing, thereby once only compress tightly a plurality of square shoulder blade 3, in order to prevent that square shoulder blade 3 from rotating, every installation wing 2-1 still is located the protruding limit rib 2-3 that is provided with respectively of square shoulder blade 3 both sides.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other forms of embodiment without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (2)

1. The utility model provides a square shoulder milling cutter, includes handle of a knife (1) and tool bit (2), the coaxial tool bit (2) that is equipped with in handle of a knife (1) top, tool bit (2) and handle of a knife (1) integrated into one piece, tool bit (2) encircle central axis isogonism and are equipped with a plurality of installation wings (2-1), every be fixed with a square shoulder blade (3), its characterized in that on installation wing (2-1): the square shoulder milling cutter further comprises a gland (4) and fastening bolts (5), a lower clamping groove (2-2) is concavely arranged in the middle position of the top end of each mounting wing (2-1), the gland (4) is coaxially covered on the top of the cutter head (2), a plurality of wing plates (4-1) are arranged at equal angles on the edge of the gland (4), the plurality of wing plates (4-1) and the top ends of the plurality of mounting wings (2-1) are arranged in a one-to-one correspondence manner, an upper clamping groove (4-2) is concavely arranged on the lower surface of each wing plate (4-1), the upper clamping groove (4-2) and the lower clamping groove (2-2) are arranged in a one-to-one correspondence manner, a circular truncated cone-shaped cavity is enclosed by the upper clamping groove (4-2) and the lower clamping groove (2-2), the inner side end of the circular truncated cone-shaped cavity is larger than the, every square shoulder blade (3) an organic whole is provided with dop (3-1), dop (3-1) are round platform form and cooperate the card to establish in the round platform form cavity that corresponds, and every installation wing (2-1) is located square shoulder blade (3) both sides and still protrudes respectively and is provided with spacing rib (2-3), through two spacing rib (2-3) restriction square shoulder blade (3) rotate, and perforation (4-3) have been seted up at gland (4) center, and tool bit (2) top central point puts the concave screw thread blind hole (2-4) that is equipped with, fastening bolt (5) pass perforation (4-3) with screw thread blind hole (2-4) threaded connection, with gland (4) and tool bit (2) tight fixed position.

2. A square shoulder milling cutter according to claim 1, wherein: the through holes (4-3) are stepped holes, and the fastening bolts (5) are screwed into the threaded blind holes (2-4) and then are flush with the surfaces of the through holes (4-3).

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