CN211564642U - Heavy truck air chamber pipe orifice corrugation forming milling cutter - Google Patents
Heavy truck air chamber pipe orifice corrugation forming milling cutter Download PDFInfo
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- CN211564642U CN211564642U CN201922050511.5U CN201922050511U CN211564642U CN 211564642 U CN211564642 U CN 211564642U CN 201922050511 U CN201922050511 U CN 201922050511U CN 211564642 U CN211564642 U CN 211564642U
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Abstract
The utility model discloses a heavy truck air chamber pipe orifice ripple forming milling cutter, the milling cutter comprises a cutter body and a cutter handle which are integrally formed, four groups of side blades are formed on the cutter body, the side blades extend to the cutter handle along the axis direction of the cutter body in a spiral manner, and a concave part is arranged between the side blades and the cutter handle; a plurality of straight teeth are distributed on the periphery of the side edge along the spiral direction of the side edge, the straight teeth are perpendicular to the axis of the cutter body, the tooth pitch of the straight teeth close to the concave part is gradually increased, and the straight teeth close to the end surface of the cutter body and the end surface of the cutter body form a front edge; a chip groove is arranged between the adjacent side edges, the chip groove extends to the cutter handle in a spiral mode, and the axial extending distance of the chip groove is larger than that of the side edges; the ripple forming milling cutter can be used for milling and forming the ripple of the pipe orifice from rough machining to semi-finish machining at one time, improves the production efficiency, saves the cost, and has good heat dissipation and chip removal effects.
Description
Technical Field
The utility model relates to milling cutter technical field, concretely relates to heavy calorie of air chamber mouth of pipe ripple shaping milling cutter.
Background
A milling cutter is a rotary tool for milling, having one or more cutter teeth, mainly for machining planes, steps, grooves, formed surfaces, cutting off workpieces, etc. on a milling machine. When the milling cutter works, each cutter tooth of the milling cutter cuts off the allowance of a workpiece intermittently in sequence.
If the heavy truck air chamber pipe orifice is processed, the conventional processing scheme needs 3 cutters for processing: the drill bit, the milling cutter and the screw tap are used for drilling, milling and forming corrugations, so that the processing efficiency is low and the cost is high; and the pipe orifice forming part needs to be processed for multiple times, the process is more, the processing efficiency is lower, and the multiple times of processing are easy to have deviation, the finished product rate is not high, and the quality is poor. In addition, due to the fact that the pipe orifice is formed, the cutter head enters the hole, the existing milling cutter cannot well meet the machining requirement in terms of chip removal capacity and heat dissipation effect, and overheating of the cutter head and accumulation of waste chips at an orifice are easily caused.
Disclosure of Invention
The utility model aims at providing a heavily block air chamber mouth of pipe ripple shaping milling cutter to the problem that prior art exists.
In order to achieve the above object, the utility model adopts the following technical scheme:
a milling cutter for corrugation forming of a pipe orifice of a heavy truck air chamber comprises a cutter body and a cutter handle which are integrally formed, wherein four groups of side blades are formed on the cutter body, the side blades spirally extend towards the cutter handle along the axial direction of the cutter body, and a concave part is arranged between each side blade and the corresponding cutter handle; a plurality of straight teeth are distributed on the periphery of the side edge along the spiral direction of the side edge, the straight teeth are perpendicular to the axis of the cutter body, the tooth pitch of the straight teeth close to the concave part is gradually increased, and the straight teeth close to the end surface of the cutter body and the end surface of the cutter body form a front edge; and a chip groove is arranged between the adjacent side edges, and the chip groove extends to the cutter handle in a spiral manner, and the axial extension distance of the chip groove is greater than that of the side edges.
The milling cutter for the corrugation forming of the pipe orifice of the heavy truck air chamber can be used for milling and forming the corrugation of the pipe orifice at one time through the arrangement of the side edges and the straight teeth; the front blade plays a role in opening and drilling, the straight teeth enter to start milling after an orifice is formed, milled waste chips are discharged along the chip discharge grooves towards the direction of the tool shank, and the arrangement of the longer chip discharge grooves is beneficial to discharging the waste chips and reducing the waste chips accumulated in the orifice;
because the side edge at the rear part of the cutter body is less stressed in the milling process, the arrangement of the concave part not only effectively improves the heat dissipation capacity of the corrugated milling cutter, but also enlarges the area of the chip removal groove, ensures the chip removal capacity of the milling cutter, and simultaneously forms the yielding space so as to facilitate the cutter withdrawal.
The straight teeth spirally distributed along the side edges can play a role in milling the inner wall of the hole and can form corrugations similar to a screw tap. The first straight tooth and the last straight tooth on the side edge are different from the straight teeth uniformly distributed in the middle, the first straight tooth forms a front edge, the transition plane between the last straight tooth and the concave part is larger than other straight teeth, a smooth edge at the tail part is formed, and the semi-finish milling of the pipe orifice is facilitated, and the tool withdrawal is facilitated.
Through the arrangement of the front blade, the side blades and the straight teeth, the corrugated forming milling cutter is formed in one step from rough machining to semi-finish machining of drilling, milling and corrugated forming, the production efficiency is improved, and the production cost is saved.
Furthermore, the two sides of the side edge are provided with cutting edges, the cutting edges are perpendicular to the bottoms of the straight teeth, the cutting edges are arranged to further improve milling capacity, and milling efficiency is improved.
Further, the straight teeth form a tooth bottom, a tooth wall and a tooth top which are smoothly connected in sequence on the side edge; the tooth bottom is an inner arc surface, the tooth wall is an outer arc surface, and the radius of the inner arc surface is the same as that of the outer arc surface; the tooth top is a plane. The straight teeth with the structure are adopted to form the corrugation of the pipe opening, the tooth tops of the planes are convenient for milling the inner circumferential surface, so that the inner surface of the corrugation is smooth, and the purpose of semi-finishing is achieved.
Further, the depth of the concave part is 2-4 times of the depth of the straight teeth.
Furthermore, the inclination angle of the transition surface of the concave part close to one side of the straight teeth is larger than that of the transition surface of the concave part close to one side of the knife handle. The surface of the concave part close to one side of the cutter handle inclines backwards, a backward opening is formed on the side edge, the cooling liquid can enter and exchange heat, and the cutter body can retreat and the side edge can be screwed out conveniently when the cutter retreats.
Furthermore, the number of the side edges is 3-8 groups.
Further, the axial length of the chip groove is the same as that of the cutter handle.
Further, the diameter of the outer contour of the cutter body is smaller than that of the outer contour of the cutter handle.
Furthermore, the spiral direction of the side edge and the chip groove is opposite to the rotary cutting direction of the milling cutter. When the rotary milling is convenient, the waste chips are discharged along the chip discharge grooves.
Furthermore, the width of chip groove is greater than the width of side edge improves chip removal ability and heat-sinking capability.
Compared with the prior art, the beneficial effects of the utility model are that: 1. the milling cutter for the corrugation forming of the pipe orifice of the heavy truck air chamber can be used for one-time milling forming from rough machining to semi-finish machining of the corrugation of the pipe orifice through the arrangement of the side blades and the straight teeth, so that the production efficiency is improved, and the cost is saved;
2. the arrangement of the longer and wider chip removal grooves is beneficial to discharging the waste chips, reducing the accumulation of the waste chips in the hole openings and simultaneously improving the heat dissipation capacity of the cutter body;
3. the arrangement of the concave part not only effectively improves the heat dissipation capacity of the corrugated milling cutter, but also enlarges the area of the chip removal groove, ensures the chip removal capacity of the milling cutter, and simultaneously forms a yielding space for facilitating the cutter withdrawal;
4. the surface of the concave part close to one side of the cutter handle inclines backwards, a backward opening is formed in the side edge, the entering and the heat exchange of cooling liquid are facilitated, and the retreating of the cutter body and the screwing-out of the side edge are facilitated when the cutter is retreated.
Drawings
FIG. 1 is a schematic view of the overall structure of the heavy truck air chamber orifice corrugation forming milling cutter of the present invention;
FIG. 2 is a schematic view of the blade structure of the ripple forming milling cutter for the orifice of the heavy truck air chamber of the present invention;
in the figure: 1. a cutter body; 2. a knife handle; 3. a side edge; 4. straight teeth; 401. tooth top; 402. a tooth wall; 403. a tooth bottom; 5. A front edge; 6. a chip groove; 7. a recessed portion; 701. a first transition surface; 702. a second transition surface; 8. a smoothing edge; a. a first transition surface inclination angle; b. the second transition surface is inclined.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows:
as shown in fig. 1 and 2, the milling cutter for corrugation forming of the pipe orifice of the heavy truck air chamber comprises a cutter body 1 and a cutter handle 2 which are integrally formed, wherein four groups of side edges 3 are formed on the cutter body 1, the side edges 3 spirally extend towards the cutter handle 2 along the axial direction of the cutter body 1, and a concave part 7 is arranged between each side edge 3 and the corresponding cutter handle 2; a plurality of straight teeth 4 are distributed on the periphery of the side edge 3 along the spiral direction of the side edge 3, the straight teeth 4 are perpendicular to the axis of the cutter body 1, the tooth pitch of the straight teeth 4 close to the concave part 7 is gradually increased, and a front edge 5 is formed at the straight teeth 4 close to the end surface of the cutter body 1 and the end surface of the cutter body 1; adjacent be equipped with chip groove 6 between the side sword 3, chip groove 6 spiral extends to handle of a knife 2, axial extension distance are greater than the extension distance of side sword 3.
The milling cutter for the corrugation forming of the pipe orifice of the heavy truck air chamber can be used for milling and forming the corrugation of the pipe orifice at one time through the arrangement of the side edges 3 and the straight teeth 4; the front edge 5 plays a role in opening and drilling, the straight teeth 4 enter to start milling after an orifice is formed, milled waste chips are discharged along the chip groove 6 towards the direction of the tool shank, and the arrangement of the longer chip groove 6 is beneficial to discharging the waste chips and reducing the waste chips accumulated in the orifice;
because the side edge atress at milling in-process cutter body 1 rear portion is less, the setting of depressed part 7 alleviates the weight of cutter body on the one hand, and save material, on the other hand have effectively improved corrugated milling cutter's heat-sinking capability, have still enlarged the area of chip groove 6 moreover, have guaranteed this milling cutter's chip removal capability, form simultaneously and give up the space and be convenient for move back the sword.
The straight teeth 4 spirally distributed along the side edges 3 can play a role of milling the inner wall of the hole and can form corrugations similar to a screw tap. The first straight tooth and the last straight tooth on the side edge 3 are slightly different from the straight teeth uniformly distributed in the middle, the first straight tooth forms a front edge 5, and a transition plane between the last straight tooth and the concave part 7 is larger than other straight teeth to form a tail smooth edge 8, so that the semi-finish hole milling of a pipe opening is facilitated.
Through the setting of preceding sword 5 side edge 3 and straight-tooth 4 makes this ripple shaping milling cutter from drilling, milling, the fashioned rough machining of ripple to semi-finishing one shot forming, has improved production efficiency, the production cost of saving.
Further, the both sides of side edge 3 have the blade, the blade with the bottom of straight-tooth 4 is perpendicular, and the setting of blade further improves and mills the ability, improves and mills efficiency.
Further, the straight teeth 4 form a tooth bottom 403, a tooth wall 402 and a tooth top 401 which are smoothly connected in sequence on the side edge 3; the tooth bottom 403 is an inner arc surface, the tooth wall 402 is an outer arc surface, and the radius of the inner arc surface is the same as that of the outer arc surface; the tooth top 401 is a plane. The straight teeth with the structure are adopted to form the corrugation of the pipe orifice, and the planar tooth top 401 is convenient for milling the inner circumferential surface, so that the inner surface of the corrugation is smooth, and the aim of semi-finishing is fulfilled.
Further, the depth of the recess 7 is 2 times the tooth depth of the straight teeth 4.
Further, the inclination angle of the first transition surface 701 of the concave part 7 on the side close to the straight teeth 4 is larger than the inclination angle of the second transition surface 702 of the concave part 7 on the side close to the tool holder 2. The second transition surface extends and inclines backwards, a backward opening is formed in the side edge 3, the entering and the heat exchange of cooling liquid are facilitated, and the retreating of the cutter body and the screwing-out of the side edge are facilitated during the cutter retreating. Specifically, the first transition surface inclination angle a is 15 degrees, and the second transition surface inclination angle b is 10 degrees.
Furthermore, the axial length of the chip removal groove 6 is the same as that of the cutter handle 2, so that the milling cutter is reasonable in structure, has good milling and chip removal effects, and is stable and firm in clamping.
Further, the diameter of the outer contour of the cutter body 1 is slightly smaller than that of the outer contour of the cutter handle 2.
Further, the spiral direction of the side edge 3 and the chip groove 6 is opposite to the rotary cutting direction of the milling cutter. When the rotary milling is convenient, the waste chips are discharged along the chip discharge groove 6.
Further, the width of the chip removal groove 6 is larger than that of the side edge 3, so that the chip removal capacity and the heat dissipation capacity are improved.
Through the arrangement, the milling cutter is used for corrugation forming of the pipe orifice of the heavy truck air chamber, the use of drilling holes and screw taps is reduced, the single machining time is improved by 15-20% through measurement and calculation, and the cost of a single piece can be reduced by 10% -15%.
Example two:
the difference between this embodiment and the first embodiment is that a tapered drill bit is further provided at the end of the cutter body 1, and the maximum outer diameter of the drill bit is slightly smaller than the outer diameter of the minimum outer contour of the cutter body. Through the setting of drill bit, further improved initial location and drilling effect, ensured machining dimension accuracy.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A milling cutter for corrugation forming of a pipe opening of a heavy truck air chamber comprises a cutter body and a cutter handle which are integrally formed, and is characterized in that a plurality of groups of side blades are formed on the cutter body, the side blades extend towards the cutter handle spirally along the axis direction of the cutter body, and a concave part is arranged between each side blade and the corresponding cutter handle; a plurality of straight teeth are distributed on the periphery of the side edge along the spiral direction of the side edge, the straight teeth are perpendicular to the axis of the cutter body, the tooth pitch of the straight teeth close to the concave part is gradually increased, and the straight teeth close to the end surface of the cutter body and the end surface of the cutter body form a front edge; and a chip groove is arranged between the adjacent side edges, and the chip groove extends to the cutter handle in a spiral manner, and the axial extension distance of the chip groove is greater than that of the side edges.
2. The heavy truck air chamber tube orifice corrugation profile milling cutter of claim 1, wherein the side edges have cutting edges on both sides, the cutting edges being perpendicular to the bottom of the spur teeth.
3. The heavy truck air chamber pipe orifice corrugation forming mill of claim 1, wherein the straight teeth form a tooth bottom, a tooth wall and a tooth top which are smoothly connected in sequence on the side edges; the tooth bottom is an inner arc surface, the tooth wall is an outer arc surface, and the radius of the inner arc surface is the same as that of the outer arc surface; the tooth top is a plane.
4. The heavy truck air chamber pipe orifice corrugation forming milling cutter as claimed in claim 1, wherein the depth of the recess is 2-4 times the depth of the teeth of the straight teeth.
5. The heavy truck air chamber pipe orifice corrugation profile milling cutter of claim 1, wherein the inclination of the transition surface of the recess on the side near the straight teeth is greater than the inclination of the transition surface of the recess on the side near the shank.
6. The heavy truck air chamber tube orifice corrugation milling cutter of claim 1, wherein the number of the side edges is 3-8 groups.
7. The heavy truck air chamber tube orifice corrugation milling cutter of claim 1, wherein the axial length of the flutes is the same as the length of the shank.
8. The heavy truck air chamber pipe orifice corrugation milling cutter of claim 1, wherein the outer profile diameter of the cutter body is smaller than the outer profile diameter of the cutter shank.
9. The heavy truck air chamber tube orifice corrugation profile milling cutter of claim 1, wherein the side edges and the flutes spiral in a direction opposite to the direction of lathe turning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922050511.5U CN211564642U (en) | 2019-11-25 | 2019-11-25 | Heavy truck air chamber pipe orifice corrugation forming milling cutter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922050511.5U CN211564642U (en) | 2019-11-25 | 2019-11-25 | Heavy truck air chamber pipe orifice corrugation forming milling cutter |
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| CN211564642U true CN211564642U (en) | 2020-09-25 |
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| CN201922050511.5U Active CN211564642U (en) | 2019-11-25 | 2019-11-25 | Heavy truck air chamber pipe orifice corrugation forming milling cutter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178599A (en) * | 2021-12-16 | 2022-03-15 | 铣立(上海)切削技术有限公司 | Better general ripple milling cutter of radiating effect |
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2019
- 2019-11-25 CN CN201922050511.5U patent/CN211564642U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178599A (en) * | 2021-12-16 | 2022-03-15 | 铣立(上海)切削技术有限公司 | Better general ripple milling cutter of radiating effect |
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