CN115255008A - Programming processing method of T-shaped groove cutter - Google Patents
Programming processing method of T-shaped groove cutter Download PDFInfo
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- CN115255008A CN115255008A CN202210836094.0A CN202210836094A CN115255008A CN 115255008 A CN115255008 A CN 115255008A CN 202210836094 A CN202210836094 A CN 202210836094A CN 115255008 A CN115255008 A CN 115255008A
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- shaped slot
- program
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- 238000003672 processing method Methods 0.000 title claims abstract description 11
- 238000003754 machining Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 13
- 229910052782 aluminium Inorganic materials 0.000 abstract description 13
- 238000010892 electric spark Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/21—Presses specially adapted for extruding metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C31/00—Control devices, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses
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Abstract
The invention discloses a programming processing method of a T-shaped slot cutter, belonging to the technical field of numerical control programming processing and comprising the following steps: (S1) verifying whether the cutter can be used for machining the aluminum extrusion die; (S2) compiling a first-step processing program of the empty cutter under the mold core; (S3) compiling a round angle R1 program on the blank cutter under the mold core; (S4) compiling a residual part program of the empty cutter under the mold core; and (S5) compiling a flow hole program. The programming processing method of the T-shaped slot cutter can finish processing of workpieces on a three-axis numerical control processing machine tool at one time.
Description
Technical Field
The invention relates to a programming processing method, in particular to a programming processing method of a T-shaped slotting tool.
Background
With the continuous development of the aluminum industry, the competition in the industry is more and more intense, and the competition in the industry can be achieved only by reducing the processing cost of the aluminum profile and the extrusion die and improving the processing efficiency of the extrusion die. Based on the limitation of processing cost, most of domestic manufacturers generally process extrusion dies on a triaxial numerical control processing center with relatively low price, but the triaxial numerical control processing center has certain limitation. When the aluminum extrusion die shown in the attached drawing 1 is machined by a three-axis numerical control machining center, generally, the aluminum extrusion die is machined from the aluminum inlet direction of the extrusion die, and then the die is turned over and machined from the aluminum outlet direction, however, the extrusion die machined by the three-axis numerical control center always has machining blind areas (such as shadow parts in the attached drawing 1), and the blind areas need to be machined by an electric spark or a five-axis machining center for secondary machining. The electric spark machining needs to firstly machine an electrode with a blind area position shape on a numerical control machine tool, so that the electric spark machining efficiency is low, and the machining period is long; secondary machining such as clamping, alignment, centering and the like needs to be carried out newly on a five-axis machining center, and the operations increase the enterprise cost. Based on this, there is a need for improvements to existing manufacturing processes.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a programming processing method of a T-shaped slot cutter.
The technical scheme is as follows: in order to achieve the purpose, the programming processing method of the T-shaped slot cutter comprises the following steps:
(S1) selecting a proper T-shaped slot cutter, wherein the T-shaped slot cutter can be used for processing only by meeting the following two conditions:
(A1)(D-d)/2≥kd+kz；
(A2)L＞QH+LH+MH；
wherein, the D-T type groove cutter has a large diameter;
d, a small diameter of a T-shaped slot cutter;
kd is the width of a blank cutter below the mold core;
kz is the sum of the swing error of the cutter and the protection margin in the machining process of the machine tool;
the effective processing length of the L-T-shaped slot cutter is the total length of the cutter bar minus the clamping length;
QH represents the chamfering depth on the upper die shunting bridge;
LH-height of the empty cutter below the mold core;
MH-height of the working band of the mold core;
(S2) compiling a first-step processing program of the empty cutter under the mold core: in programming software, setting the top surface of a mold core as a programming Z-axis 0 point, programming the outer shape outline of a T-shaped groove cutter surrounding a mold core working belt at a Z value of- (MH + R1+ h), and setting the position parameters of cutter advancing and retracting at the beginning and the end of the cutter path track as kd +2mm from the side surface of the mold core working belt to the side surface of a hollow cutter below the mold core;
wherein, R1 is fillet transition at the joint of the mold core working belt and the mold core lower idle cutter;
h is the height of the edge length of the T-shaped slot cutter;
(S3) compiling a round angle R1 program on the blank cutter under the mold core: in programming software, a tool path track which is processed layer by layer from bottom to top is compiled on the lower surface of the top edge of the cutting edge of the T-shaped groove cutter along the R1 curved surface, and the position parameters of the tool advancing and retracting at the beginning and the end of the tool path track are set to be kd +2mm;
(S4) compiling a residual part program of the blank cutter under the mold core: in programming software, firstly deleting a mold core working zone and R1 in a three-dimensional mold of the mold, then extending the side surface of a lower blank cutter to a z-axis 0 plane and plugging the top surface of the blank cutter, programming a T-shaped groove cutter to surround the modified three-dimensional mold, processing a cutter path track layer by layer from top to bottom, processing the rest part of the lower blank cutter of the mold core, and setting the position parameters of the cutter advancing and retracting at the beginning and the end of the cutter path track as kd +2mm;
(S5) a flow hole program is compiled: and compiling a program for machining the dead zone position of the shunting hole layer by layer from top to bottom around the shunting hole by using the modified three-dimensional model of the mold in programming software, wherein the machining depth distance is QH, the cutter lifting position of the cutter path track is limited by a machining profile during programming, and the distance between the cutter lifting position and the side surface of the mold core working band is G, wherein G = D/2+7mm.
Preferably, the steps (S2), (S3), (S4) and (S5) use Hyper mill software to write the numerical control machining program.
Preferably, in the step (S3), when the software Hyper mill is used to write the numerical control machining program, r1 in the three-dimensional model needs to be moved downward by the edge length of the T-shaped slot cutter.
Preferably, G ≧ D/2+ kd +2mm in step (S5).
Preferably, in step (S1), kz =0.2 to 0.3mm.
The programming processing method of the T-shaped slot cutter at least has the following technical effects: by adopting the T-shaped slot cutter and the programming processing method provided by the invention, the processing of the die can be completed on the three-axis numerical control processing machine tool at one time, the secondary processing by using an electric spark device or a five-axis numerical control processing machine tool is avoided while the three-axis numerical control processing machine tool is used for processing, the processing efficiency is improved, and the processing cost is reduced.
Drawings
FIG. 1 is a front view of an aluminum extrusion die;
FIG. 2 is a cross-sectional view of an aluminum extrusion die;
fig. 3 is a schematic structural diagram of the T-shaped cutter.
In the figure, 1, a mold core; 2. a diversion tunnel; 3. a shunt bridge.
Detailed Description
The principles and features of the present invention are described below in conjunction with fig. 1-3, which are provided by way of example only to illustrate the present invention and not to limit the scope of the present invention.
In this embodiment, the aluminum extrusion die is processed by using a T-shaped slot cutter 27.76, specifically, the cutter parameters are as follows: d (large diameter of the T-shaped slot cutter) =27.76mm, D (small diameter of the T-shaped slot cutter) =16mm, L (effective length of the T-shaped slot cutter, namely, the total length of the cutter bar minus the clamping length) =100mm, and h (blade length distance of the T-shaped slot cutter) =5.3mm; aluminum extrusion die product: QH (chamfer depth on the upper die shunting bridge 3) =40mm, LH (idle cutter height under the mold core 1) =30mm, MH (height of the mold core 1 operating band) =20mm, R1 (fillet transition at the joint of the mold core 1 operating band and the idle cutter under the mold core 1) =3mm, kd (idle cutter width under the mold core 1) =5mm, kz (sum of cutter swing error and protection margin in machine tool machining, cutter swing error in general machine tool machining takes a value according to the error of each machine tool, and protection margin generally takes a value of 0.2 mm) =0.3mm. In this embodiment, the Hyper mill software is used to write a numerical control machining program.
(S1) verifying whether the cutter can be used for machining the aluminum extrusion die:
(A1) (D-D)/2 is more than or equal to kd + kz; specifically, (27.76-16)/2 is more than or equal to 5+0.3, which meets the requirement;
(A2) L is more than QH + LH + MH; specifically, 100 > 40+30+20, satisfy.
(S2) programming a first-step machining program of the empty cutter below the mold core 1: in programming software, setting the top surface of a mold core 1 as a programming Z-axis 0 point, programming the outline of a working area of a T-shaped groove cutter surrounding the mold core 1 at a Z value of- (MH + R1+ h), namely- (20 +3+ 5.3) = -28.3mm, and setting the position parameters of cutter advancing and retracting at the starting and ending positions of a cutter path track as kd +2mm, namely 7mm, from the side surface of the working area of the mold core 1 to the side surface of a lower idle cutter of the mold core 1, so as to prevent the cutter lifting of a program segment G00Z 50 in the machining process from colliding with the working area of the mold core 1.
(S3) programming an R1 program on a blank cutter below the mold core 1: in programming software, firstly, R1 in a three-dimensional extrusion die moves h =5.3mm (h: the edge length of a T-shaped groove cutter) along the negative direction of a z axis, because the programming software calculates a cutter path track according to the bottom of the T-shaped groove cutter, and R1 is processed by using the top of the T-shaped groove cutter, R1 in the three-dimensional extrusion die moves downwards by one edge length, which is equivalent to that the cutter path track is generated by using the bottom of the cutter edge in the programming software, and the cutter path track is used for actually processing the lower surface of the upper part of the cutter edge of the T-shaped groove cutter along the R1 curved surface, encircles the outline of the hollow cutter under the die and is processed layer by layer from bottom to top. The numerical value of the Z-axis direction in the processing program is from-28.3 mm to-25.3 mm, and the position parameter of the cutter advancing and retracting at the start and the end of the cutter path track is set to be kd +2mm, namely 7mm.
(S4) programming the rest part program of the blank cutter under the mold core 1: in programming software, a working zone and R1 of a mold core 1 in a three-dimensional type of an extrusion mold are deleted, the side face of a lower idle cutter of the mold core 1 extends to a z-axis 0 plane and blocks the top face of the idle cutter, a T-shaped groove cutter is programmed to surround the modified three-dimensional type, and a cutter path track is processed layer by layer from top to bottom, the numerical value in the direction of the z axis in a processing program is from-28.3 mm to-50 mm, if the working zone and R1 of the mold core 1 in the three-dimensional type of the mold are not removed, when the program is output by using the programming software, a cutter can be processed along the maximum outline of the working zone of the mold core 1 and cannot be processed to the position of the idle cutter. The position parameter of the cutter advancing and retracting at the start and the end of the cutter path track is set to kd +2mm, namely 7mm.
(S5) compiling a branch tunnel 2 program: and compiling a program for processing the blind area part of the shunt hole 2 layer by layer from top to bottom around the shunt hole 2 by continuously using the modified three-dimensional model in programming software, wherein the numerical value in the z-axis direction in the processing program is from-50 mm to-90 mm, the cutter lifting position of the cutter path track is limited by using the processing contour in programming, the distance between the cutter lifting position and the side surface of the working band of the mold core 1 is G, wherein G = D/2+7mm, and G =20.88mm in the embodiment.
According to the method, the aluminum extrusion die can be machined on the three-axis numerical control machine tool at one time by compiling the numerical control machining program, so that the machining cost is reduced, and the machining process is simplified.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A programming processing method of a T-shaped slot cutter is characterized by comprising the following steps:
(S1) selecting a proper T-shaped slot cutter, wherein the T-shaped slot cutter can be used for processing only by meeting the following two conditions:
(A1)(D-d)/2≥kd+kz；
(A2)L＞QH+LH+MH；
wherein, the D-T type groove cutter has a large diameter;
d, a small diameter of a T-shaped slot cutter;
kd is the width of a lower hollow cutter of the mold core (1);
kz is the sum of the swing error of the cutter and the protection allowance during machining of the machine tool;
the effective length of the L-T-shaped slot cutter is the total length of the cutter bar minus the clamping length;
QH represents the chamfering depth on the upper die shunting bridge (3);
LH is the height of the lower blank of the mold core (1);
MH is the height of the working band of the mold core (1);
(S2) programming a first-step processing program of the blank cutter below the mold core (1): in programming software, setting the top surface of a mold core (1) as a programming Z-axis 0 point, programming the outer shape profile of a T-shaped groove cutter surrounding a working belt of the mold core (1) at a Z value of- (MH + R1+ h), and setting the position parameters of cutter advancing and retracting at the beginning and the end of a cutter path track as kd +2mm from the side surface of the working belt of the mold core (1) to the side surface of a lower blank cutter of the mold core (1) layer by layer from outside to inside;
wherein R1 is fillet transition at the connection part of the working belt of the mold core (1) and the lower blank of the mold core (1);
h is the height of the edge length of the T-shaped slot cutter;
(S3) programming a round corner R1 program on the blank cutter below the mold core (1): in programming software, the lower surface of the top of the cutting edge of the T-shaped groove cutter along the R1 curved surface is programmed, the contour of the hollow cutter below the mold core (1) is surrounded, a cutter path track is processed layer by layer from bottom to top, and the position parameters of the cutter advancing and retracting positions at the beginning and the end of the cutter path track are set to be kd +2mm;
(S4) programming the residual part program of the blank cutter under the mold core (1): in programming software, firstly deleting a working zone and R1 of a mold core (1) in a three-dimensional mold of the mold, then extending the side surface of a lower blank cutter to a z-axis 0 plane and plugging the top surface of the blank cutter, programming a T-shaped groove cutter to surround the modified three-dimensional mold, machining a cutter path track layer by layer from top to bottom, machining the rest part of the lower blank cutter of the mold core (1), and setting the position parameters of the cutter advancing and retracting positions at the beginning and the end of the cutter path track as kd +2mm;
(S5) compiling a flow splitting hole (2) program: and compiling a program for processing the blind area part of the shunting hole (2) layer by layer from top to bottom around the shunting hole (2) by using the modified three-dimensional model in programming software, wherein the processing depth distance is QH, the cutter lifting position of the cutter path track is limited by a processing contour during programming, and the distance between the cutter lifting position and the side surface of the working band of the mold core (1) is G, wherein G = D/2+7mm.
2. The programmed machining method of the T-shaped slot cutter as claimed in claim 1, characterized in that: and (S2), (S3), (S4) and (S5) writing a numerical control machining program by adopting Hyper mill software.
3. The programmed machining method of the T-shaped slot cutter as claimed in claim 2, characterized in that: in the step (S3), when the software Hyper mill is used to write the numerical control machining program, r1 of the three-dimensional model needs to be moved down by the blade length distance of the T-shaped slotting tool.
4. The programmed machining method of the T-shaped slot cutter as claimed in claim 1, characterized in that: g is more than or equal to D/2+ kd +2mm in step (S5).
5. The programmed machining method of the T-shaped slot cutter as claimed in claim 1, characterized in that: in step (S1), kz =0.2 to 0.3mm.
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| CN202210836094.0A CN115255008B (en) | 2022-07-15 | 2022-07-15 | Programming processing method of T-shaped slot cutter |
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| CN202210836094.0A CN115255008B (en) | 2022-07-15 | 2022-07-15 | Programming processing method of T-shaped slot cutter |
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| CN115255008B CN115255008B (en) | 2024-07-02 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354156A (en) * | 2011-08-31 | 2012-02-15 | 哈尔滨汽轮机厂有限责任公司 | Cavity machining track planning method based on numerical control operation system |
| CN103454972A (en) * | 2013-06-26 | 2013-12-18 | 厦门钨业股份有限公司 | Tool five-axis numerical control grinding automatic programming method based on UG NX API |
| US20140324213A1 (en) * | 2013-04-25 | 2014-10-30 | Manchester Copper Products, Llc | Extrusion press systems and methods |
| CN105013850A (en) * | 2015-07-08 | 2015-11-04 | 龙口市丛林铝材有限公司 | Railway train body profile extrusion mold and finishing method thereof |
| CN106938343A (en) * | 2017-05-05 | 2017-07-11 | 中国长江动力集团有限公司 | The processing method and parameterization macro program digital control programming method of inner circle helical teeth or skewed slot |
| CN213728624U (en) * | 2020-10-12 | 2021-07-20 | 龙口市丛林铝材有限公司 | Split-flow die structure for producing cavity and semi-cavity combined section |
-
2022
- 2022-07-15 CN CN202210836094.0A patent/CN115255008B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354156A (en) * | 2011-08-31 | 2012-02-15 | 哈尔滨汽轮机厂有限责任公司 | Cavity machining track planning method based on numerical control operation system |
| US20140324213A1 (en) * | 2013-04-25 | 2014-10-30 | Manchester Copper Products, Llc | Extrusion press systems and methods |
| CN103454972A (en) * | 2013-06-26 | 2013-12-18 | 厦门钨业股份有限公司 | Tool five-axis numerical control grinding automatic programming method based on UG NX API |
| CN105013850A (en) * | 2015-07-08 | 2015-11-04 | 龙口市丛林铝材有限公司 | Railway train body profile extrusion mold and finishing method thereof |
| CN106938343A (en) * | 2017-05-05 | 2017-07-11 | 中国长江动力集团有限公司 | The processing method and parameterization macro program digital control programming method of inner circle helical teeth or skewed slot |
| CN213728624U (en) * | 2020-10-12 | 2021-07-20 | 龙口市丛林铝材有限公司 | Split-flow die structure for producing cavity and semi-cavity combined section |
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| CN115255008B (en) | 2024-07-02 |
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