CN212121825U

CN212121825U - Inclined surface self-locking anti-loose milling cutter

Info

Publication number: CN212121825U
Application number: CN202020325377.5U
Authority: CN
Inventors: 陆卓君
Original assignee: Dongguan Aken Precision Machinery Co ltd
Current assignee: Dongguan Aken Precision Machinery Co ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-12-11
Anticipated expiration: 2030-03-16

Abstract

The utility model belongs to the technical field of milling machine cutter technique and specifically relates to indicate a locking milling cutter in inclined plane auto-lock. The utility model discloses a cutter body, including cutter body, blade body, blade. The lateral wall of mounting groove is provided with first inclined plane, and the lateral wall of blade is provided with the direction inclined plane second inclined plane that corresponds first inclined plane, forms the left-hand thread auto-lock after the laminating installation, and the blade is difficult not hard up when carrying out great cut-depth.

Description

Inclined surface self-locking anti-loose milling cutter

Technical Field

The utility model belongs to the technical field of milling machine cutter technique and specifically relates to indicate a locking milling cutter in inclined plane auto-lock.

Background

A milling cutter is a rotating tool with one or more cutter teeth for milling. When in work, each cutter tooth cuts off the allowance of the workpiece in sequence and intermittently. The milling cutter is mainly used for processing planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine. The number of cutting inserts involved in cutting at any one time is an advantage, but too many, the power required is dependent on how many cutting edges are involved in cutting, and the position of the milling cutter relative to the workpiece plays an important role in chip formation, cutting edge loading and machining results. In the milling cutter type, the indexable type is widely applied and has relatively low cost, the indexable type is a cutter which clamps a polygonal blade capable of being used in an indexable mode on a cutter bar or a cutter body by a mechanical method, the cutter of the type generally adopts a screw to lock in to fix the blade, the blade is easy to loosen in a long-time milling process, the technical means for solving the technical problem of the prior art is to limit and fix the blade by designing a relatively complex structure, and the structures can obviously increase the product cost and also increase the complexity of installing and changing the direction of the blade.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a locking milling cutter in inclined plane auto-lock, the lateral wall of mounting groove is provided with first inclined plane, and the lateral wall of blade is provided with the direction inclined plane second inclined plane that corresponds first inclined plane, forms the left-hand thread auto-lock after the laminating installation, and the blade is difficult not hard up when carrying out great depth of cut.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides an inclined plane auto-lock locking milling cutter, includes the cutter body and installs in the blade of cutter body, the cutter body bottom is seted up two at least mounting grooves that are used for installing the blade along the circumferencial direction, and this mounting groove is including the installation face of connecting the blade downside and the first inclined plane of connecting the blade side, and the outer end border arch on this first inclined plane is higher than inner border, the side of blade is provided with the laminating and supports the second inclined plane on tight first inclined plane, the blade runs through and has seted up the locking hole, and this locking jogged joint has the retaining member of cross-under to the installation face.

Preferably, an inner included angle between the first inclined surface and a horizontal plane is 3 to 35 degrees.

Preferably, the bottom end of the cutter body is provided with at least two arc-shaped grooves extending inwards from the side wall along the circumferential direction, and the mounting groove is formed in one side wall of each arc-shaped groove.

Preferably, the both sides wall of mounting groove all is provided with first inclined plane, the cross-section of blade is the octagon, the quantity on second inclined plane is sixteen, and this sixteen second inclined plane encircles and lays the side of blade and corresponds eight borders of connecting blade front and back terminal surface respectively.

Preferably, the cutter body includes the milling disc of fixed part and connection fixed part one end, and the lateral wall of milling disc is seted up around to at least two mounting grooves, blade quantity and mounting groove correspond the setting, and one protrusion in the downside of milling disc in two adjacent blades is another protrusion in the last side of milling disc.

Preferably, the first inclined plane is arranged on one side wall of the mounting groove, the second inclined planes are arranged on the left side face and the right side face of the blade, the mounting surface is provided with a protruding limiting boss, and the limiting boss abuts against one end face of the blade.

The beneficial effects of the utility model reside in that: the utility model provides a locking milling cutter of inclined plane auto-lock, in the actual manufacturing process, the lateral wall of mounting groove has preset first inclined plane, the lateral wall of blade then has preset the reverse inclined plane second inclined plane that corresponds with first inclined plane, the second inclined plane supports the tight laminating with first inclined plane after the blade is packed into the mounting groove, be higher than inner border for the outer end border arch because of first inclined plane, and the laminating of second inclined plane is connected, so first inclined plane outer end border can obviously increase the resistance when the second inclined plane outwards slides, it is not hard up to lead to the blade to be difficult to lateral sliding to appear, form left-hand thread auto-lock effect, the retaining member of this application structure locking blade need not to bear the transverse shear force that the pretension brought when carrying out great depth of cut, the locking reliability of locking has been improved.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic view of a first inclined plane and a second inclined plane of the first embodiment of the present invention abutting against each other.

Fig. 3 is an exploded schematic view of a three-dimensional structure of a blade and a blade body according to an embodiment of the present invention.

Fig. 4 is a schematic perspective view of a second embodiment of the present invention.

Fig. 5 is a schematic view of a close three-dimensional structure of the first inclined plane and the second inclined plane in the second embodiment of the present invention.

Fig. 6 is an exploded perspective view of a knife body and a knife blade according to a second embodiment of the present invention.

Detailed Description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention.

As shown in fig. 1 to 3, the first embodiment of the present invention provides an inclined plane self-locking anti-loose milling cutter, including cutter body 1 and blade 2 installed in cutter body 1, at least two installation grooves 3 used for installing blade 2 are provided along the circumferential direction at the bottom end of cutter body 1, and this installation groove 3 includes installation face 31 of connecting blade 2 downside and first inclined plane 32 of connecting blade 2 side, and the outer end border of this first inclined plane 32 is protruding to be higher than the inner border, the side of blade 2 is provided with the second inclined plane 21 that the laminating supports tight first inclined plane 32, blade 2 runs through and has been provided with locking hole 22, and this locking hole 22 is connected with retaining member 4 that cross-under to installation face 31.

The locking milling cutter of inclined plane auto-lock of this embodiment, in the actual manufacturing process, the lateral wall of mounting groove 3 has preset first inclined plane 32, the lateral wall of blade 2 has then preset the reverse inclined plane second inclined plane 21 that corresponds with first inclined plane 32, blade 2 packs into mounting groove 3 back second inclined plane 21 and first inclined plane 32 and supports the tight laminating, be higher than inner border for the outer end border arch because of first inclined plane 32, and the laminating of second inclined plane 21 is connected, so first inclined plane 32 outer end border can obviously increase the resistance when second inclined plane 21 outwards slides, it is not hard up to appear in the lateral sliding to lead to blade 2 to be difficult to the lateral sliding, form the back-off auto-lock effect, retaining member 4 of this application structure locking blade 2 need not to bear the transverse shear force that the pretension brought when carrying out great depth of cut, the locking reliability of locking has been improved.

In this embodiment, the inner included angle between the first inclined surface 32 and the horizontal plane is 3 to 35 degrees. The self-locking effect formed by the inclined plane in the range reaches the expectation, and meanwhile, the machining difficulty is low, the cost is effectively controlled, and the market competitiveness is kept.

In this embodiment, the bottom end of the cutter body 1 is provided with at least two arc grooves 11 extending inwards from the side wall along the circumferential direction, and the mounting groove 3 is provided on a side wall of the arc groove 11. The mounting groove 3 is vertically arranged, various machining requirements are facilitated, and the practicability is high.

In this embodiment, both side walls of the mounting groove 3 are provided with first inclined planes 32, the cross section of the blade 2 is octagonal, the number of the second inclined planes 21 is sixteen, and the sixteen second inclined planes 21 surround the side surfaces of the blade 2 and are respectively correspondingly connected with eight edges of the front and rear end surfaces of the blade 2. The blade 2 and the sixteen second inclined planes 21 are arranged and matched with the two first inclined planes 32 after being arranged in the mounting groove 3 to form the left-hand buckling and self-locking of two positions, so that the anti-loosening effect is further enhanced.

As shown in fig. 4 to 6, a second embodiment of the present invention is different from the first embodiment in that: the cutter body 1 includes fixed part 12 and the milling disc 13 of connecting fixed part 12 one end, and the lateral wall of milling disc 13 is seted up around to at least two

mounting grooves

3, 2 quantity of blade and the corresponding setting of mounting groove 3, one protrusion in two adjacent blades 2 in the downside of milling disc 13 another protrusion in the last side of milling disc 13. The embodiment is another kind of cutter body 1 structure, and the same cooperation left-hand thread auto-lock inclined plane design reaches and prevents the effect of taking off. The insert 2 protrudes the upper side and the lower side of the milling insert 2, respectively, to form two faces which can be milled.

In this embodiment, the first inclined surface 32 is provided on a side wall of the mounting groove 3, the second inclined surfaces 21 are provided on both left and right side surfaces of the blade 2, and the mounting surface 31 is provided with a protruding limit boss 33, and the limit boss 33 abuts against an end surface of the blade 2. The two side surfaces of the blade 2 are provided with the second inclined surfaces 21, so that the self-locking effect of the reverse inclined surfaces can be formed when one end is turned over after use and is installed for use. The limiting boss 33 abuts against the upper end face or the lower end face of the insert 2, and is arranged to protrude out of the upper side face or the lower side face of the milling insert 2 according to the requirement of the insert 2.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The above-mentioned embodiments only express a plurality of embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. Inclined plane auto-lock locking milling cutter includes cutter body (1) and installs in blade (2) of cutter body (1), its characterized in that: cutter body (1) bottom is seted up two at least mounting groove (3) that are used for installing blade (2) along the circumferencial direction, and this mounting groove (3) are including installation face (31) of connecting blade (2) downside and first inclined plane (32) of connecting blade (2) side, and the outer end border arch of this first inclined plane (32) is higher than inner border, the side of blade (2) is provided with second inclined plane (21) that the laminating supports tight first inclined plane (32), blade (2) are run through and have been seted up locking hole (22), and this locking hole (22) are connected with cross-under to retaining member (4) of installation face (31).

2. The bevel self-locking anti-loose milling tool according to claim 1, characterized in that: the inner included angle between the first inclined surface (32) and the horizontal plane is 3 to 35 degrees.

3. The bevel self-locking anti-loose milling tool according to claim 1, characterized in that: the cutter body (1) bottom is seted up two at least arc recess (11) that inwards extend from the lateral wall along the circumferencial direction, a lateral wall of arc recess (11) is seted up in mounting groove (3).

4. The bevel self-locking anti-loose milling tool according to claim 2, characterized in that: the both sides wall of mounting groove (3) all is provided with first inclined plane (32), the cross-section of blade (2) is the octagon, the quantity of second inclined plane (21) is sixteen, and this sixteen second inclined plane (21) encircle and lay the side of blade (2) and correspond the eight borders of connecting blade (2) front and back terminal surface respectively.

5. The bevel self-locking anti-loose milling tool according to claim 1, characterized in that: cutter body (1) include fixed part (12) and mill disc (13) of connecting fixed part (12) one end, and the lateral wall of milling disc (13) is seted up in encircleing in mounting groove (3) of at least two, blade (2) quantity corresponds the setting with mounting groove (3), and one protrusion in two adjacent blades (2) is in another protrusion of the downside of milling disc (13) the side of going up of milling disc (13).

6. The bevel self-locking anti-loose milling tool according to claim 4, characterized in that: the first inclined plane (32) is arranged on one side wall of the mounting groove (3), the second inclined planes (21) are arranged on the left side surface and the right side surface of the blade (2), the mounting surface (31) is provided with a protruding limiting boss (33), and the limiting boss (33) abuts against one end face of the blade (2).