CN111014851B - EDM-based method for processing rubber openings with multiple composite angles - Google Patents
EDM-based method for processing rubber openings with multiple composite angles Download PDFInfo
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- CN111014851B CN111014851B CN201911327034.0A CN201911327034A CN111014851B CN 111014851 B CN111014851 B CN 111014851B CN 201911327034 A CN201911327034 A CN 201911327034A CN 111014851 B CN111014851 B CN 111014851B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
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Abstract
The invention discloses an EDM-based method for processing a plurality of compound angle rubber openings, which comprises the steps of S1, designing the shape of the head of an electrode, and arranging a sub-middle frame at the tail of the electrode tip; s2, placing the workpiece on a machine tool workbench according to the 2D drawing direction of the workpiece; s3, mounting the electrode at the original point A of the machine tool spindle in an inverted manner and locking; s4, confirming that the central line of a first glue opening of the machined workpiece forms 45 degrees with the X axis and 40 degrees with the Z axis, and controlling the main shaft and the electrode to move to the initial position B; s5, controlling the electrode to start from the initial position B, simultaneously feeding along three directions of XYZ, and carrying out electric discharge machining to the final position C in the direction forming an included angle of 40 degrees with the Z axis; s6, controlling the electrode to return to an initial position B along the original path of the feeding direction and to displace to a main shaft original point A; s7, confirming that the central line of the second glue opening of the machined workpiece forms 27 degrees with the X axis, and repeating the steps S3-S6 to perform the electric discharge machining of the next glue opening until all the glue openings are machined, wherein the workpiece is always unchanged in position.
Description
Technical Field
The invention belongs to the technical field of injection molds, and particularly relates to a method for machining a plurality of compound angle glue openings based on EDM.
Background
Conventionally, EDM adopts a front working platform to adjust the inclination angle of a glue opening of a workpiece when machining a side glue opening, and then the workpiece is placed on the front working platform as required to be subjected to electric discharge machining from top to bottom by using an electrode.
The traditional method comprises the following processing steps:
s1, mounting the machined electrode on a machine tool spindle head;
s2, placing the sine working platform on the machine tool worktable in a righting way and magnetizing;
s3, adjusting the angle of the positive working platform to 40 degrees;
s4, rotating the workpiece in the Z-axis direction by 45 degrees, placing the workpiece on a positive working platform, and turning on the magnetic force;
s5, performing discharge machining on the position of the glue opening from top to bottom according to the set values of the X, Y and Z directions of the electrodes;
and S6, after the first glue opening is machined, adjusting the angle of the workpiece to 27 degrees, machining the second glue opening, and so on, wherein the angle of the workpiece must be adjusted once again every time one glue opening is machined.
Under the present condition, the single side rubber opening is processed in a traditional mode and is still, and the workpiece only needs to be placed once. When four or more side glue openings are formed in the workpiece, the workpiece needs to be placed and installed for many times, and too much clamping time is consumed. After the inclination angle, the electrode also needs to be designed higher accordingly in order to avoid the workpiece.
Disclosure of Invention
The present invention is directed to solve or improve the above-mentioned problems by providing a method for machining a plurality of compound angle gates based on EDM.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for machining a plurality of compound angle rubber openings based on EDM comprises the following steps:
s1, designing the shape of the electrode head according to the shape of the rubber opening of the workpiece, wherein the tail of the electrode tip is provided with a sub-middle frame which exceeds the highest surface of the workpiece and faces to the Z direction and is used for processing and positioning the spindle of the EDM machine tool;
s2, placing the workpiece on a machine tool workbench according to the 2D drawing direction of the workpiece, and righting the workpiece in the X and Y directions;
s3, mounting the electrode at the original point A of the machine tool spindle in an inverted manner and locking;
s4, confirming that the central line of a first glue opening of the machined workpiece forms 45 degrees with the X axis and 40 degrees with the Z axis, and controlling the main shaft and the electrode to move to the initial position B;
s5, controlling the electrode to feed simultaneously in three directions of XYZ from the initial position B, and performing electric discharge machining to the final position C in the direction forming an included angle of 40 degrees with the Z axis to finish the electric discharge machining;
s6, controlling the electrode to return to an initial position B along the original path of the feeding direction and to displace to a main shaft original point A;
s7, confirming that the central line of the second glue opening of the machined workpiece forms 27 degrees with the X axis, and repeating the steps S3-S6 to perform the electric discharge machining of the next glue opening until all the glue openings are machined, wherein the workpiece is always unchanged in position.
Preferably, according to the characteristics of the summer mil 350 mu electric spark machine tool, the main shaft of the machine tool can control the rotatable angle and simultaneously feed in three directions of XYZ and achieve smooth transition.
The EDM-based method for processing the rubber openings with multiple composite angles has the following beneficial effects:
compared with the traditional process, the method has the advantages that the time for repeatedly clamping the part for many times can be effectively reduced, the labor hour can be saved by 50-70% under the condition that the machining hour of the machine tool is not changed, and the EDM machining efficiency is greatly improved; and the part is clamped and positioned at one time, so that the machining precision of the workpiece is improved, the error caused by repeated clamping is reduced, and meanwhile, the electrode material can be saved by 30-50%.
Drawings
Fig. 1 is an electrode mounting diagram of a multiple compound angle gum point machining method based on EDM.
FIG. 2 is a side gum line drawing of a workpiece for a multiple compound angle gum line machining method based on EDM.
FIG. 3 is a flow chart of a workpiece machining process of a multiple compound angle bead machining method based on EDM.
FIG. 4 is an external view of a fixture for machining a workpiece according to a multi-angle compound slot machining method by EDM.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined in the appended claims, and all matters produced by the invention using the inventive concept are protected.
According to an embodiment of the application, referring to fig. 1, the EDM-based multiple compound angle gum mouth processing method of the present invention is based on the charmil 350 μ electric discharge machine characteristics, and a machine spindle controls a rotatable angle; the feeding can be simultaneously carried out along three directions of XYZ and the smooth transition is achieved, and the machining of the side glue opening is also completed by the characteristic of the machine tool.
The method comprises the following specific steps:
s1, referring to fig. 1, the shape of the electrode head is designed according to the shape of the rubber opening of the workpiece, and the tail of the electrode tip is provided with a center frame which exceeds the highest surface of the workpiece and faces to the Z direction and is used for processing and positioning the spindle of the EDM machine tool.
S2, referring to FIG. 2, according to the 2D drawing direction of the workpiece, the workpiece is placed on a machine tool workbench and is righted in the X and Y directions, and a circle of the workpiece is provided with 16 side glue openings.
S3, processing the workpiece, inversely installing the electrode at the original point A of the machine tool spindle and locking;
s4, referring to FIG. 3, confirming that the central line of the first glue opening of the machined workpiece forms 45 degrees with the X axis and 40 degrees with the Z axis, and controlling the main shaft and the electrode to move to the initial position B;
s5, controlling the electrode to feed simultaneously in three directions of XYZ from the initial position B, and performing electric discharge machining in the direction of an included angle of 40 degrees to the final position C to finish the electric discharge machining;
wherein, the initial position B is an EDM initial position, the workpiece is completely avoided, and a connecting line between the initial position B and the final position C forms an included angle of 40 degrees with the Z bearing.
S6, controlling the electrode to return to an initial position B along the original path of the feeding direction and to displace to a main shaft original point A;
s7, confirming that the central line of the second glue opening of the machined workpiece forms 27 degrees with the X axis, and repeating the steps S3-S6 to perform the electric discharge machining of the next glue opening until all the glue openings are machined, wherein the workpiece is always unchanged in position.
Referring to fig. 2, a total of 32 side gates are formed on the workpiece.
According to one embodiment of the present application, and with reference to fig. 4, the present invention enables machining of a particular shape of a workpiece based on the existing characteristics of an EDM machine. The method mainly comprises the steps of normally clamping an electrode on a machine tool spindle by means of the spindle rotation characteristic of an EDM (enhanced discharge machining) summer miler 350 electric spark machine tool, and controlling the machine tool spindle to rotate to 45 degrees (the spindle angle is consistent with the glue opening angle) according to the angle (45 degrees) formed by glue openings after a workpiece is placed in a right position.
Referring to fig. 4, the initial position of the electrode is positioned at a position concentric with the center line of the gate and completely avoiding the workpiece, (X is 22.071, Y is 6.091, and Z is 37.000), the spindle XYZ is controlled to feed in three directions simultaneously, and finally the electrode reaches the gate required position (X is 20.386, Y is 7.776, and Z is 35.000) and after the discharge machining of the gate of the workpiece is completed, the electrode is safely ejected out of the workpiece according to the feeding route.
Compared with the traditional process, the method has the advantages that the time for repeatedly clamping the part for many times can be effectively reduced, the labor hour can be saved by 50-70% under the condition that the machining hour of the machine tool is not changed, and the EDM machining efficiency is greatly improved; and the part is clamped and positioned at one time, so that the machining precision of the workpiece is improved, the error caused by repeated clamping is reduced, and meanwhile, the electrode material can be saved by 30-50%.
While the embodiments of the invention have been described in detail in connection with the accompanying drawings, it is not intended to limit the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (1)
1. A method for processing a plurality of compound angle rubber openings based on EDM is characterized by comprising the following steps:
s1, designing the shape of the electrode head according to the shape of the rubber opening of the workpiece, wherein the tail of the electrode tip is provided with a sub-middle frame which exceeds the highest surface of the workpiece and faces to the Z direction and is used for processing and positioning the spindle of the EDM machine tool;
s2, placing the workpiece on a machine tool workbench according to the 2D drawing direction of the workpiece, and righting the workpiece in the X and Y directions;
s3, mounting the electrode at the original point A of the machine tool spindle in an inverted manner and locking;
s4, confirming that the central line of a first glue opening of the machined workpiece forms 45 degrees with the X axis and 40 degrees with the Z axis, and controlling the main shaft and the electrode to move to the initial position B;
s5, controlling the electrode to start from an initial position B, simultaneously feeding along three directions of XYZ, performing electric discharge machining in a direction forming an included angle of 40 degrees with the Z axis to a final position C, and completing electric discharge machining, namely, the initial position of the electrode is placed at a position which is concentric with the center line of the glue opening and completely avoids the workpiece, wherein X is 22.071, Y is 6.091, Z is 37.000, controlling the main shaft to simultaneously feed along the three directions of XYZ, and finally reaching a glue opening required position X is 20.386, Y is 7.776, Z is 35.000, and after the electric discharge machining of the glue opening of the workpiece is completed, the electrode safely exits the workpiece according to a feeding route;
s6, controlling the electrode to return to an initial position B along the original path of the feeding direction and to displace to a main shaft original point A;
s7, confirming that the central line of a second glue opening of the machined workpiece forms 27 degrees with the X axis, and repeating the steps S3-S6 to perform the electric discharge machining of the next glue opening until all the glue openings are machined, wherein the workpiece is always unchanged in position;
the EDM machine is a summer mil 350 mu electric spark machine.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911327034.0A CN111014851B (en) | 2019-12-20 | 2019-12-20 | EDM-based method for processing rubber openings with multiple composite angles |
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| CN201911327034.0A CN111014851B (en) | 2019-12-20 | 2019-12-20 | EDM-based method for processing rubber openings with multiple composite angles |
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| CN111014851B true CN111014851B (en) | 2021-09-07 |
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| CN113523460A (en) * | 2021-07-30 | 2021-10-22 | 四川科思精密模具股份有限公司 | Electrode base for machining ox horn rubber port of part and machining method |
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| US6384364B1 (en) * | 2000-12-21 | 2002-05-07 | General Electric Company | Method of aligning electrode in multiple-axis EDM drilling |
| CN102151919A (en) * | 2011-02-16 | 2011-08-17 | 嘉兴信元精密模具科技有限公司 | Method for processing subsurface gate by discharging |
| CN202741874U (en) * | 2012-04-25 | 2013-02-20 | 牧野机床（中国）有限公司 | Multi-angle submarine gate processing device |
| CN204934780U (en) * | 2015-07-16 | 2016-01-06 | 南京华格电汽塑业有限公司 | A kind of injection moulding die casting mouth electrode discharge device |
| CN106392212A (en) * | 2016-11-26 | 2017-02-15 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for electric machining of special-shaped groove |
| CN106825792A (en) * | 2015-12-07 | 2017-06-13 | 昆山精创模具有限公司 | A kind of processing method of the oblique cast gate of workpiece |
| CN207681667U (en) * | 2017-11-28 | 2018-08-03 | 苏州沃思诺自动化科技有限公司 | A kind of jig for oblique glue mouth electrode clamping angle adjustable |
| CN209318946U (en) * | 2018-12-24 | 2019-08-30 | 深圳市翔翼精密模具有限公司 | A kind of latent glue mouth electric discharge machining apparatus of injection mold |
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2019
- 2019-12-20 CN CN201911327034.0A patent/CN111014851B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6384364B1 (en) * | 2000-12-21 | 2002-05-07 | General Electric Company | Method of aligning electrode in multiple-axis EDM drilling |
| CN102151919A (en) * | 2011-02-16 | 2011-08-17 | 嘉兴信元精密模具科技有限公司 | Method for processing subsurface gate by discharging |
| CN202741874U (en) * | 2012-04-25 | 2013-02-20 | 牧野机床（中国）有限公司 | Multi-angle submarine gate processing device |
| CN204934780U (en) * | 2015-07-16 | 2016-01-06 | 南京华格电汽塑业有限公司 | A kind of injection moulding die casting mouth electrode discharge device |
| CN106825792A (en) * | 2015-12-07 | 2017-06-13 | 昆山精创模具有限公司 | A kind of processing method of the oblique cast gate of workpiece |
| CN106392212A (en) * | 2016-11-26 | 2017-02-15 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for electric machining of special-shaped groove |
| CN207681667U (en) * | 2017-11-28 | 2018-08-03 | 苏州沃思诺自动化科技有限公司 | A kind of jig for oblique glue mouth electrode clamping angle adjustable |
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Address after: 610045 Wuqing South Road, Wuhou District, Chengdu, Sichuan, 33 (Wuhou New Town Management Committee) Patentee after: Sichuan Kesi precision mould Co.,Ltd. Address before: 610045 Wuqing South Road, Wuhou District, Chengdu, Sichuan, 33 (Wuhou New Town Management Committee) Patentee before: SICHUAN COSMOS PRECISION MOLD & DIE Co.,Ltd. |