CN209935966U

CN209935966U - Air inlet pipe guide hole machining tool

Info

Publication number: CN209935966U
Application number: CN201920609030.0U
Authority: CN
Inventors: 王笃军; 孙波
Original assignee: Jiangsu Maohouhui Mechanical Equipment Co Ltd
Current assignee: Jiangsu Maohouhui Mechanical Equipment Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-01-14
Anticipated expiration: 2029-04-30

Abstract

The utility model relates to a hole machining cutter for a guide pipe of an air inlet pipe, which comprises a cutter body and a cutter handle, wherein the cutter body comprises a first cylinder, a first round platform and a second cylinder which are connected in sequence, a plurality of top blades are arranged at the top of the first cylinder, a first chip removal groove is arranged on the first cylinder of a front cutter face of the top blade, cutter grooves are arranged on the first round platform and the second cylinder on one side of the first chip removal groove, a triangular blade is arranged in each cutter groove, three chip removal grooves are arranged on the end face of the triangular blade, chip separation grooves arranged at intervals are arranged on the outer side wall of each chip removal groove, a groove positioned in the center of the triangular blade is arranged; the top blade and the triangular blade with the replaceable cutting edge are combined with the cutter body, so that the inner surface of a guide hole of the air inlet pipe and the surface milling of an inner taper step can be carried out at one time, the chip breaking effect is increased by the chip dividing grooves and the deeper chip breaking grooves, the chips are prevented from being splashed and worn, the service life of the cutter is prolonged, and the surface consistency of workpieces is ensured.

Description

Air inlet pipe guide hole machining tool

Technical Field

The utility model relates to a cutter, especially an intake pipe spot facing work cutter.

Background

The surface of the inner hole is one of the main surfaces of the part and is a matching part in relative connection with other parts, and in the machining process of the guide pipe hole of the automobile air inlet pipe, the milling finish machining of the inner surface of the hole and the milling machining of the inner surface of an inner taper step are related, so that the smoothness of the surface of the pipe is improved, the sudden change of the section is avoided, the connection of the guide pipe can be facilitated, and the stable air flow in the cylinder is ensured. The processing cutter in intake pipe hole generally adopts the cutter of internal surface cutting edge and the cutter tool changing processing of gradient cutting edge among the prior art, and is comparatively loaded down with trivial details, and there is the gradient cutting edge chip breaking unreliable again to adopt integrative compound cutter, collapses garrulous smear metal and splashes and cause the condition of wearing and tearing or winding cutter, arouses work piece damage and cutter damage, has influenced surface quality and uniformity, needs whole change cutter after the gradient cutting edge wearing and tearing, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's defect, provide an intake pipe hole machining tool, the triangle blade that adopts top blade and removable cutting edge combines with the cutter body, can once carry out the face milling processing of the internal surface cutting in intake pipe hole and interior taper step to chip breaker groove and the chip breaker groove increase the chip breaking effect of darker, avoid the smear metal wearing and tearing that splash, increase the cutter life-span, guarantee workpiece surface uniformity.

The utility model discloses a realize through following technical scheme:

a cutter for machining holes of guide pipes of air inlet pipes comprises a cutter body and a cutter handle which are connected into an integral structure, wherein the cutter body comprises a first cylinder, a first round table and a second cylinder which are sequentially connected, a plurality of top blades are arranged at the top of the first cylinder, the outer walls of the top blades protrude out of the first cylinder, first chip removal grooves are formed in the first cylinder of a front cutter face of each top blade, the bottoms of the first chip removal grooves extend onto the first round table and the second cylinder and are of arc structures, the tops of the top blades protrude out of the first cylinder, second chip removal grooves are formed in the first cylinder of a rear cutter face of each top blade, and the bottoms of the second chip removal grooves are arc-shaped and are communicated with the first chip removal grooves;

the first round platform and the second column body on one side of the first chip groove are provided with chip grooves, a triangular blade is arranged in each chip groove, a bolt in threaded connection with the cutter body is arranged on each triangular blade, three chip breakers are arranged on the end face of each triangular blade, the bottoms and the outer side walls of the chip breakers are obliquely arranged, openings are formed between one ends of the chip breakers and the cutting edges of the triangular blades, a plurality of chip separating grooves which are arranged at intervals are formed in the outer side walls of the chip breakers, the chip separating grooves are perpendicular to the cutting edges of the triangular blades, and grooves located in the centers of the triangular blades are;

be equipped with the cooling hole that extends to in the cutter handle, be equipped with first cooling branch hole and second cooling branch hole that the tip is located a plurality of first chip grooves on the cooling hole, first cooling branch hole and second cooling branch hole all link to each other with the cooling hole slope, and correspond the setting with top blade and triangle blade respectively.

The utility model has the advantages that:

(1) the top blade and the triangular blade are combined with the cutter body, chips are synchronously discharged from the first chip discharge groove, the inner surface of a guide pipe hole of the air inlet pipe and the surface milling processing of an inner taper step can be carried out at one time, the cutter changing operation is avoided, the processing efficiency is improved, meanwhile, the triangular blade is connected through a bolt embedded into the cutter groove, and the cutter has three cutting edges, can be replaced and used, avoids integral scrapping of the cutter, prolongs the service life and is more economical; (2) the triangular blade is provided with the chip breaker groove with the inclined bottom and the inclined outer side wall, so that the groove bottom is larger and deeper, a deformation effect is added on chips, the chips are thinner by matching with the chip breaker groove, the chip breaker effect is improved, the chips are finally gathered in the groove and are discharged by the first chip discharge groove, and the chips are prevented from being splashed and worn; (3) the cooling holes, the first cooling branch holes and the second cooling branch holes are used for cooling the blade and the workpiece, so that the thermal wear can be reduced, the service life of the cutter is prolonged, and the surface consistency of the workpiece is ensured.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an enlarged view of a portion a of fig. 1.

Fig. 3 is a front projection view of the present invention.

Fig. 4 is a top projection view of the present invention.

(in the figure, the cutter body 1, the cutter handle 2, the first cylinder 11, the first circular truncated cone 12, the second cylinder 13, the top blade 3, the first chip-removing groove 4, the second chip-removing groove 5, the cutter groove 6, the triangular blade 7, the bolt 8, the chip breaker groove 9, the opening 10, the chip breaker groove 14, the groove 16, the third cylinder 17, the fourth cylinder 18, the second circular truncated cone 19, the cooling hole 20, the first cooling branch hole 21 and the second cooling branch hole 22).

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

A cutter for machining holes of guide pipes of air inlet pipes comprises a cutter body 1 and a cutter handle 2 which are connected into an integral structure, wherein the cutter body 1 comprises a first cylinder 11, a first circular table 12 and a second cylinder 13 which are sequentially connected, a plurality of top blades 3 are arranged at the top of the first cylinder 11, the outer walls of the top blades 3 protrude out of the first cylinder 11, a first chip discharge groove 4 is formed in the first cylinder 11 of the front cutter face of each top blade 3, and the bottom of each first chip discharge groove 4 extends to the first circular table 12 and the second cylinder 13 and is of an arc structure;

top blade 3 top protrusion and first cylinder 11 are equipped with second chip groove 5 on the first cylinder 11 of 3 back knife faces of top blade, 5 bottoms of second chip groove are the arc, and communicate with first chip groove 4. The top blade 3 can adopt PCD material and cutter body 1 welded connection, and the top blade 3 of protrusion in first cylinder 11 top can regard as the profile of face milling cutting edge processing pipe downthehole taper step, enriches the processing usage of cutter and increases the chip space with second chip groove 5, avoids the long-pending bits in top.

The first round platform and the second column body 13 on one side of the first chip groove 4 are provided with a chip groove 6, a triangular blade 7 is arranged in the chip groove 6, the triangular blade 7 is provided with a bolt 8 which is in threaded connection with the cutter body 1, the end surface of the triangular blade 7 is provided with three chip breakers 9, the bottoms of the chip breakers 9 and the outer side wall are obliquely arranged, an opening 10 is arranged between one end of each chip breaker 9 and the cutting edge of the triangular blade 7, the outer side wall of each chip breaker 9 is provided with a plurality of chip separating grooves 14 which are arranged at intervals, each chip separating groove 14 is vertical to the cutting edge of the triangular blade 7, and a groove 16 which is positioned in;

the knife handle 2 is an HSK knife handle 2. By adopting the structure of the HSK tool holder 2, in the high-speed cutting process, the outer conical surface and the end surface of the tool holder 2 are connected with the main shaft of the machine tool in a tensioning manner, so that the radial run-out is reduced, and the processing reliability and stability are improved;

a third cylinder 17 and a fourth cylinder 18 are arranged between the cutter body 1 and the cutter handle 2, and second round tables 19 are arranged between the third cylinder 17 and the cutter body 1 and between the third cylinder 17 and the fourth cylinder 18. The connecting neck part of the cutter body 1 and the cutter handle 2 is formed by the second round platform 19, the third column body 17 and the fourth column body 18, transition is gradually performed, the support stability is guaranteed, and the cutter can be lengthened to meet the operation requirement under the working condition that a conduit hole and an inner taper step are deep.

Be equipped with the cooling hole 20 that extends to in the cutter body 1 in the handle of a knife 2, be equipped with first cooling branch hole 21 and the second cooling branch hole 22 that the tip is located on a plurality of first chip grooves 4 on the cooling hole 20, first cooling branch hole 21 and second cooling branch hole 22 all link to each other with the cooling hole 20 slope, and correspond the setting with top blade 3 and triangle blade 7 respectively. Through leading into the coolant liquid to cooling hole 20, the coolant liquid flows out from the tip of first cooling branch hole 21 and second cooling branch hole 22 on first chip groove 4, for work piece and the cutter cooling when top blade 3 and the cutting of inverted triangle blade 7, reduces the thermal wear between blade and the work piece to improve the cutter life-span.

The cutter is fixed on a machine tool through a cutter handle 2, the machine tool is processed at the rotating speed (n) 8000r/min, the cutting speed (vc) 980m/min and the feed amount (f) 0.6mm/rev, the inner surface of a guide pipe hole of the air inlet pipe is cut by a cutting edge of a top blade 3 protruding out of a first cylinder 11, cutting chips are discharged along a first chip discharge groove 4 and are fed along with the cutter, triangular blades 7 on a first circular table 12 and a second cylinder 13 are contacted with an inner taper step of the guide pipe hole of the air inlet pipe to perform taper face milling, and the cutting chips are discharged along the first chip discharge groove 4;

the bottom of the triangular blade 7 and the chip breaker groove 9 with the inclined outer side wall enable the groove bottom to be larger and deeper, the front angle is larger, the chip breaker groove 9 has an additional deformation effect on chips and is matched with the chip breaker groove 14, the chip breaker groove 14 on the cutting edge enables the chips to be thinner, the chip breaker effect is improved, the chips are finally gathered in the groove 16 and are discharged by the first chip breaker groove 4, and the chips are prevented from splashing and wearing the blade; after the triangular blade 7 is used for a long time, the triangular blade 7 is provided with three cutting edges and can be replaced for use, and the bolt 8 penetrates through the triangular blade 7 and is in threaded connection with the cutter body 1 to realize assembly through embedding the cutter groove 6, so that the whole cutter does not need to be scrapped, the service life of the cutter is longer, and the cutter is more economical;

in the cutting process, the cooling holes 20, the first cooling branch holes 21 and the second cooling branch holes 22 can also be used for cooling the blade and the workpiece, so that the thermal wear can be reduced, the service life of the cutter is prolonged, and the surface consistency of the workpiece is ensured.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being 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. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The cutter for machining the guide pipe hole of the air inlet pipe comprises a cutter body and a cutter handle which are connected into an integral structure, and is characterized in that the cutter body comprises a first cylinder, a first round table and a second cylinder which are sequentially connected, a plurality of top blades are arranged at the top of the first cylinder, the outer walls of the top blades protrude out of the first cylinder, a first chip discharge groove is formed in the first cylinder of a front cutter face of each top blade, and the bottom of the first chip discharge groove extends to the first round table and the second cylinder and is of an arc structure;

be equipped with the sword groove on first round platform and the second cylinder of first chip groove one side, be equipped with the triangle blade in the sword groove, be equipped with the bolt with cutter body screwed connection on the triangle blade, triangle blade terminal surface is equipped with three chip breaker, chip breaker bottom and lateral wall slope set up and be equipped with the opening between the cutting edge of one end and triangle blade, be equipped with the chip-separating groove that a plurality of intervals set up on the lateral wall of chip breaker, the cutting edge of chip-separating groove perpendicular to triangle blade is equipped with the recess that is located triangle blade center between the three end chip groove.

2. The air inlet pipe conduit hole machining tool according to claim 1, wherein the tool shank is an HSK tool shank.

3. The air inlet pipe conduit hole machining tool according to claim 2, wherein a third cylinder and a fourth cylinder are arranged between the tool body and the tool handle, and second round tables are arranged between the third cylinder and the tool body and between the third cylinder and the fourth cylinder.

4. The air inlet pipe guide hole machining tool as claimed in claim 1, wherein the top blade top protrudes out of the first cylinder, a second chip removal groove is formed in the first cylinder on the rear tool face of the top blade, and the bottom of the second chip removal groove is arc-shaped and is communicated with the first chip removal groove.

5. The air inlet pipe conduit hole machining tool according to any one of claims 1 ~ 4, wherein a cooling hole extending into the tool body is formed in the tool shank, a first cooling branch hole and a second cooling branch hole are formed in the cooling hole, the ends of the first cooling branch hole and the second cooling branch hole are located on the first chip grooves, and the first cooling branch hole and the second cooling branch hole are obliquely connected with the cooling hole and are respectively arranged corresponding to the top blade and the triangular blade.