CN111673208A - Submarine gate machining process - Google Patents
Submarine gate machining process Download PDFInfo
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- CN111673208A CN111673208A CN202010241048.7A CN202010241048A CN111673208A CN 111673208 A CN111673208 A CN 111673208A CN 202010241048 A CN202010241048 A CN 202010241048A CN 111673208 A CN111673208 A CN 111673208A
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- electrode
- integrated electrode
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- gate
- machining
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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
Abstract
The invention discloses a processing technology of a submarine gate, which comprises the following steps: a. manufacturing an integrated electrode according to a gate shape, wherein the integrated electrode is provided with an electrode tip matched with the gate shape; b. the integrated electrode is arranged on a machine head of an electric spark machine, and the axial lead of a pouring gate of a workpiece to be processed is coincided with the axial lead of an electrode tip of the integrated electrode; c. determining a machining starting coordinate according to an initial installation position of an electrode tip of the integrated electrode and a position of a point on the integrated electrode, wherein when the electrode tip of the integrated electrode is machined, the electrode tip of the integrated electrode is located in a position in a pouring gate, and a machining ending coordinate is determined according to the position of the point on the integrated electrode; d. and inputting a starting machining coordinate and an ending machining coordinate on the electric discharge machine. The invention provides a submarine gate processing technology which is high in electrode precision, good in discharge quality and convenient to process, manual clamping and dismounting are omitted, and the automatic production degree is improved.
Description
Technical Field
The invention relates to the technical field of processing technologies, in particular to a processing technology of a submarine gate.
Background
The submarine gate, also called tunnel gate, is evolved from the point gate, which not only overcomes the complex disadvantage of the point gate mold, but also maintains the advantages of the point gate. The submarine gate can be arranged on one side of the movable mould and can also be arranged on one side of the fixed mould. It can be arranged at the hidden position of the inner surface or the side surface of the plastic part, can also be arranged on the rib and the column of the plastic part, and can also be arranged on the parting surface. And the method of using the ejector rod of the mold to arrange the pouring gate is also a simple and easy method. The submarine gate is generally in a conical shape and forms a certain angle with the cavity, usually 20-45 degrees, and the gate size can be selected according to the size of the spot gate.
The advantages of the submarine gate are as follows: (1) the feeding gate is usually hidden on the inner surface or side surface of the plastic part, and the appearance of the product is not influenced. (2) After the product is formed, the product can be automatically broken with the plastic part during ejection. Therefore, the production automation (3) is easy to realize, because the submarine gate can be arranged on the ribs and columns which can not be seen on the surface of the product, the spray mark and the air line caused by the spray can not be left on the surface of the product during the molding. Its disadvantages are as follows: (1) because the submarine gate is submerged under the parting surface and obliquely enters the cavity, the processing is difficult. (2) The gate is in the shape of a cone, so that the gate is convenient to cut during ejection, and the diameter of the gate is smaller, but the gate is not suitable for a thin-wall product because the gate has too large pressure loss and is easy to condense.
The existing latent glue inlet is processed in a mode of swinging a workpiece or swinging an electrode; in-process needs the manual work to proofread the table with part or electrode to the work piece design is cut edge, then goes up the machine and processes, and the main defect lies in: the process flow is complicated, manual intervention is more, manual operation is more troublesome, and the file is not easy to store.
Chinese patent publication No. CN102151919B discloses a method for processing a submarine gate by electrical discharge, which is capable of processing a submarine gate by electrical discharge, but in this method, the pouring direction of an insert needs to be perpendicular to a workbench of a spark machine, and the requirement for the placement position of the insert is high, which results in a difficult placement method, and the accuracy of the gate formed finally is difficult to be ensured.
Disclosure of Invention
Aiming at the defects of the prior art, the latent gate machining process is provided, the electrode precision is high, the discharge quality is good, the machining is convenient, the manual clamping and the dismounting are omitted, and the automatic production degree is improved.
In order to achieve the above object, the present invention provides the following technical solutions.
A latent gate processing technology comprises the following steps:
a. manufacturing an integrated electrode according to the shape of the gate, wherein the integrated electrode comprises a reference platform with a plane bottom surface, a connecting part formed on the reference platform and an electrode tip formed by extending the end part of the connecting part outwards in an inclined manner, the electrode tip is matched with the shape of the submarine gate, and the included angles between the bottom surfaces of the electrode tip and the reference platform and the submarine gate and the horizontal plane are the same;
b. placing a workpiece to be machined on an electric spark machine, horizontally installing the integrated electrode on a machine head of the electric spark machine through a reference platform, and enabling the axis of a sprue of the workpiece to be machined to coincide with the axis of an electrode tip of the integrated electrode;
c. determining a machining starting coordinate according to an initial installation position of an electrode tip of the integrated electrode and a position of a point on the integrated electrode, wherein the electrode tip of the integrated electrode is machined, and when the electrode tip of the integrated electrode is located in a position in a pouring gate, a machining ending coordinate is determined according to the position of the point on the integrated electrode;
d. and inputting a starting machining coordinate and a finishing machining coordinate on an electric spark machine, and driving the integrated electrode to move from the starting machining coordinate to the finishing machining coordinate along a straight line by the electric spark machine to be machined in place.
The invention has the beneficial effects that: the machining process of the invention comprises the steps of firstly manufacturing an electrode tip matched with a gate in shape, assembling an integrated electrode and a workpiece to be machined on an electric spark machine during working, enabling the reference platform to be horizontally arranged on the electric spark machine due to the fact that the ground of the reference platform is a plane, enabling the axis of the gate of the workpiece to be machined to be parallel to the axis of the electrode tip of the integrated electrode, then moving the integrated electrode through the electric spark machine, enabling the axis of the electrode tip of the integrated electrode to be coincident with the axis of the gate of the workpiece to be machined, enabling the integrated electrode to be installed on the machine head of the electric spark machine without adjusting the angle by setting the shape of the electrode tip to be matched with the shape of the gate, reducing the clamping difficulty, and enabling the electrode tip to be machined to be capable of being machined by driving the electrode tip to linearly move along the axis direction of the electrode tip during machining, the electrode precision is high, and the quality of discharging is good, and processing is convenient, has left out artifical clamping and dismouting, improves automated production degree.
As an improvement of the invention, the integrated electrode further comprises a reinforcing seat which is formed between the reference platform and the connecting part and used for reinforcing the strength of the connecting part. Through the improvement, the strength of the connecting part is enhanced.
As a modification of the present invention, in step a, the step of processing the integrated electrode includes the steps of:
a1. according to the shape of the integrated electrode, programming an electrode CNC machining program and a side milling machining program by using CAM software;
a2. according to the size of the designed integrated electrode, using a blank to be arranged on an electrode jig base;
a3. assembling the electrode jig base on a CNC (computer numerical control) processing machine tool, calling a CNC program to process a rough and finish electrode, and processing the side face reverse buckling position of the integrated electrode by using lateral processing after finishing.
As an improvement of the invention, the processing of the integrated electrode further comprises the following steps:
a4. and (5) detecting the size of the machined integrated electrode by using a three-dimensional mode.
As a refinement of the invention, the integral electrode is made of copper or graphite.
Drawings
Fig. 1 is a schematic view of the structure of the integrated electrode of the present invention.
FIG. 2 is a schematic view of the combination of an integrated electrode and a workpiece according to embodiment 1 of the present invention.
Fig. 3 is a schematic diagram of the integrated electrode moving from the start coordinate to the end coordinate in embodiment 1 of the present invention.
Fig. 4 is another angle schematic of fig. 3 of the present invention.
Fig. 5 is a cross-sectional view of fig. 3 of the present invention.
FIG. 6 is a schematic view of the combination of an integrated electrode and a workpiece according to embodiment 2 of the present invention.
Fig. 7 is a schematic diagram of the integrated electrode moving from the start coordinate to the end coordinate in embodiment 2 of the present invention.
Fig. 8 is another angle schematic of the invention of fig. 7.
Fig. 9 is a cross-sectional view of fig. 7 of the present invention.
In the figure: 1. a workpiece; 11. a gate; 2. an integral electrode; 21. a connecting portion; 22. an electrode tip; 23. a reference table; 24. a reinforcement seat.
Detailed Description
The invention is further explained with reference to the drawings.
Referring to fig. 1, a submarine gate processing method includes the following steps:
a. manufacturing an integrated electrode according to the shape of a gate, wherein the integrated electrode comprises a reference platform, a connecting part formed on the reference platform, and an electrode tip formed by extending the end part of the connecting part outwards in an inclined manner, the integrated electrode further comprises a reinforcing seat formed between the reference platform and the connecting part and used for reinforcing the strength of the connecting part, the electrode tip and a workpiece can be subjected to contact discharge machining during machining, the strength of the connecting part and the electrode tip is reinforced by arranging the reinforcing part, the damage during machining is avoided, the bottom surface of the reference platform is a plane, the shape of the electrode tip is matched with that of a submerged gate, the included angles between the bottom surfaces of the electrode tip and the reference platform and the submerged gate and the horizontal plane are the same, and the integrated electrode is made of copper or graphite;
the integrated electrode processing method comprises the following steps:
a1. determining the shape of the integrated electrode according to the shape of the pouring gate, and writing an electrode CNC machining program and a side milling machining program by using CAM software according to the shape of the integrated electrode;
a2. according to the size of the designed integrated electrode, a blank is arranged on the electrode jig base, wherein the blank is copper or graphite, the raw material cost is low, and the conductive effect is good;
a3. assembling an electrode jig base on a CNC (computer numerical control) processing machine tool, calling a CNC program to process a rough and finish electrode, after the machining is finished, using lateral machining to process a side face reverse buckling position of the integrated electrode, wherein the side face reverse buckling position of the integrated electrode is the side face of an electrode tip of the integrated electrode, and as an electrode head of the integrated electrode is obliquely arranged, the side face of the electrode tip can be machined on the CNC processing machine tool only by the lateral machining;
a4. the size of the machined integrated electrode is detected by using a three-dimensional unit, so that the size accuracy of the integrated electrode is ensured;
b. putting a workpiece to be machined on an electric spark machine, horizontally installing the integrated electrode on a machine head of the electric spark machine through a reference platform, enabling the axis of a pouring gate of the workpiece to be machined to be parallel to the axis of an electrode tip of the integrated electrode, and enabling the axis of the pouring gate of the workpiece to be machined to coincide with the axis of the electrode tip of the integrated electrode through the movement of a numerical control electric spark machine;
c. determining a machining starting coordinate according to an initial installation position of an electrode tip of the integrated electrode and a position of a point on the integrated electrode, wherein the electrode tip of the integrated electrode is machined, and when the electrode tip of the integrated electrode is located in a position in a pouring gate, a machining ending coordinate is determined according to the position of the point on the integrated electrode; a connecting line of the initial machining coordinate and the final machining coordinate is a moving path of the integrated electrode;
d. and inputting a starting machining coordinate and a finishing machining coordinate on an electric spark machine, and driving the integrated electrode to move from the starting machining coordinate to the finishing machining coordinate along a straight line by the electric spark machine to be machined in place.
The machining process of the invention comprises the steps of firstly manufacturing the electrode tip matched with the shape of the gate, assembling the integrated electrode and the workpiece to be machined on the electric spark machine during working, enabling the reference platform to be horizontally arranged on the electric spark machine due to the fact that the ground of the reference platform is a plane, facilitating positioning, enabling the axis of the gate of the workpiece to be machined to be parallel to the axis of the electrode tip of the integrated electrode, enabling the axis of the electrode tip of the integrated electrode to be coincident with the axis of the gate of the workpiece to be machined by moving the integrated electrode through the electric spark machine, enabling the integrated electrode to be arranged on the machine head of the electric spark machine by setting the shape of the electrode tip to be matched with the shape of the gate, avoiding angle adjustment, reducing clamping difficulty, and only needing to drive the electrode tip to linearly move along the axis direction during machining, the method has the advantages of high electrode precision, good discharge quality, convenient processing, no manual clamping and dismounting, and improved automatic production degree.
In the embodiment 1 shown in fig. 2 to 5, the processing process includes the following steps:
a. manufacturing an integrated electrode according to the shape of a gate, wherein the integrated electrode comprises a reference platform, a connecting part formed on the reference platform, and an electrode tip formed by extending the end part of the connecting part outwards and obliquely, the integrated electrode further comprises a reinforcing seat formed between the reference platform and the connecting part and used for reinforcing the strength of the connecting part, the bottom surface of the reference platform is a plane, the shape of the electrode tip is matched with the shape of a submarine gate, namely the inclination angle and the external dimension of the electrode tip are the same as those of the gate, in the embodiment, the inclination angle of the gate and the horizontal plane is 44 degrees, the inclination angle of the corresponding electrode tip and the bottom surface of the reference platform is also 44 degrees, the integrated electrode is made of copper or graphite, and the processing of the integrated electrode comprises the following steps:
a1. determining the shape of the integrated electrode according to the shape of the pouring gate, and writing an electrode CNC machining program and a side milling machining program by using CAM software according to the shape of the integrated electrode;
a2. according to the size of the designed integrated electrode, a blank is arranged on an electrode jig base, wherein the blank is made of copper, so that the integrated electrode after being machined and formed is made of copper;
a3. assembling the electrode jig base on a CNC (computer numerical control) processing machine tool, calling a CNC program to process a rough and finish electrode, and processing a side face reverse buckling position of the integrated electrode by using lateral processing after the rough and finish electrode is processed, wherein the side face reverse buckling position of the integrated electrode is the side face of an electrode tip of the integrated electrode;
a4. the size of the machined integrated electrode is detected by using a three-dimensional unit, so that the size accuracy of the integrated electrode is ensured;
b. putting a workpiece to be machined on an electric spark machine, horizontally installing the integrated electrode on a machine head of the electric spark machine through a reference platform, enabling the axis of a pouring gate of the workpiece to be machined to be parallel to the axis of an electrode tip of the integrated electrode, and enabling the axis of the pouring gate of the workpiece to be machined to coincide with the axis of the electrode tip of the integrated electrode through the movement of a numerical control electric spark machine;
c. determining a machining start coordinate by using a position of a point on the integrated electrode according to an initial installation position of the electrode tip of the integrated electrode, finishing machining of the electrode tip of the integrated electrode, determining a machining end coordinate by using the position of the point on the integrated electrode when the electrode tip of the integrated electrode is positioned in the gate, wherein a connecting line of the start machining coordinate and the end machining coordinate is a moving path of the integrated electrode, in the embodiment, a point at the joint of a reference table and the electrode tip is a machining start coordinate, the coordinate of the point is A (20, 53, 65), the electrode tip of the integrated electrode is positioned in the gate, the coordinate of the point is B (0, 30, 41), and the connecting line of the start machining coordinate and the end machining coordinate is a moving path of the integrated electrode;
d. and inputting a starting machining coordinate and a finishing machining coordinate on an electric spark machine, and driving the integrated electrode to move from the starting machining coordinate to the finishing machining coordinate along a straight line by the electric spark machine to be machined in place.
In the embodiment 2 shown in fig. 6 to 9, the processing process includes the following steps:
a. the integrated electrode is manufactured according to the shape of a gate, wherein the integrated electrode comprises a reference platform, a connecting part formed on the reference platform and an electrode tip formed by extending the end part of the connecting part outwards and obliquely, the integrated electrode further comprises a reinforcing seat formed between the reference platform and the connecting part and used for reinforcing the strength of the connecting part, the bottom surface of the reference platform is a plane, the shape of the electrode tip is matched with the shape of a submarine gate, namely the inclination angle and the external dimension of the electrode tip are the same as those of the gate, in the embodiment, the inclination angle of the gate and the horizontal plane is 25 degrees, the inclination angle of the corresponding electrode tip and the bottom surface of the reference platform is also 25 degrees, the integrated electrode is made of copper, and the processing of the integrated electrode comprises the following steps:
a1. determining the shape of the integrated electrode according to the shape of the pouring gate, and writing an electrode CNC machining program and a side milling machining program by using CAM software according to the shape of the integrated electrode;
a2. according to the size of the designed integrated electrode, a blank is arranged on an electrode jig base, wherein the blank is made of copper, so that the integrated electrode after being machined and formed is made of copper;
a3. assembling the electrode jig base on a CNC (computer numerical control) processing machine tool, calling a CNC program to process a rough and finish electrode, and processing a side face reverse buckling position of the integrated electrode by using lateral processing after the rough and finish electrode is processed, wherein the side face reverse buckling position of the integrated electrode is the side face of an electrode tip of the integrated electrode;
a4. the size of the machined integrated electrode is detected by using a three-dimensional unit, so that the size accuracy of the integrated electrode is ensured;
b. putting a workpiece to be machined on an electric spark machine, horizontally installing the integrated electrode on a machine head of the electric spark machine through a reference platform, enabling the axis of a pouring gate of the workpiece to be machined to be parallel to the axis of an electrode tip of the integrated electrode, and enabling the axis of the pouring gate of the workpiece to be machined to coincide with the axis of the electrode tip of the integrated electrode through the movement of a numerical control electric spark machine;
c. determining a machining start coordinate by using a position of a point on the integrated electrode according to an initial installation position of the electrode tip of the integrated electrode, finishing machining of the electrode tip of the integrated electrode, determining a machining end coordinate by using the position of the point on the integrated electrode when the electrode tip of the integrated electrode is positioned in the gate, wherein a connecting line of the start machining coordinate and the end machining coordinate is a moving path of the integrated electrode, in the embodiment, a point at the joint of a reference table and the electrode tip is a machining start coordinate, coordinates of the point are A (17, 23, 54), the electrode tip of the integrated electrode is positioned in the gate, coordinates of the point are B (10, 18, 59), and a connecting line of the start machining coordinate and the end machining coordinate is a moving path of the integrated electrode;
d. inputting a starting machining coordinate and a finishing machining coordinate on an electric discharge machine, and driving the integrated electrode to move from the starting machining coordinate A (17, 23, 54) to the finishing machining coordinate B (10, 18, 59) along a straight line by the electric discharge machine to be machined in place.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (5)
1. A processing technology of a submarine gate is characterized in that: the method comprises the following steps:
a. manufacturing an integrated electrode according to the shape of the gate, wherein the integrated electrode comprises a reference platform with a plane bottom surface, a connecting part formed on the reference platform and an electrode tip formed by extending the end part of the connecting part outwards in an inclined manner, the electrode tip is matched with the shape of the submarine gate, and the included angle between the electrode tip and the bottom surface of the reference platform is the same as the included angle between the submarine gate and the horizontal plane;
b. placing a workpiece to be machined on an electric spark machine, horizontally installing the integrated electrode on a machine head of the electric spark machine through a reference platform, and enabling the axis of a sprue of the workpiece to be machined to coincide with the axis of an electrode tip of the integrated electrode;
c. determining a machining starting coordinate according to an initial installation position of an electrode tip of the integrated electrode and a position of a point on the integrated electrode, wherein the electrode tip of the integrated electrode is machined, and when the electrode tip of the integrated electrode is located in a position in a pouring gate, a machining ending coordinate is determined according to the position of the point on the integrated electrode;
d. and inputting a starting machining coordinate and a finishing machining coordinate on an electric spark machine, and driving the integrated electrode to move from the starting machining coordinate to the finishing machining coordinate along a straight line by the electric spark machine to be machined in place.
2. The submarine gate processing technology according to claim 1, wherein: the integrated electrode also comprises a reinforcing seat which is formed between the reference platform and the connecting part and used for reinforcing the strength of the connecting part.
3. The submarine gate processing technology according to claim 1, wherein:
in step a, the processing of the integrated electrode comprises the following steps:
a1. according to the shape of the integrated electrode, programming an electrode CNC machining program and a side milling machining program by using CAM software;
a2. according to the size of the designed integrated electrode, using a blank to be arranged on an electrode jig base;
a3. assembling the electrode jig base on a CNC (computer numerical control) processing machine tool, calling a CNC program to process a rough and finish electrode, and processing the side face reverse buckling position of the integrated electrode by using lateral processing after finishing.
4. The submarine gate processing technology according to claim 3, wherein: the integrated electrode processing method further comprises the following steps:
a4. and (5) detecting the size of the machined integrated electrode by using a three-dimensional mode.
5. The submarine gate processing technology according to claim 1, wherein: the integral electrode is made of copper or graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010241048.7A CN111673208A (en) | 2020-03-31 | 2020-03-31 | Submarine gate machining process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010241048.7A CN111673208A (en) | 2020-03-31 | 2020-03-31 | Submarine gate machining process |
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| CN111673208A true CN111673208A (en) | 2020-09-18 |
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| CN202010241048.7A Withdrawn CN111673208A (en) | 2020-03-31 | 2020-03-31 | Submarine gate machining process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114473087A (en) * | 2022-02-28 | 2022-05-13 | 歌尔股份有限公司 | Workpiece inner hole machining method, device, equipment and storage medium |
Citations (4)
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|---|---|---|---|---|
| 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 |
| CN205254280U (en) * | 2015-09-08 | 2016-05-25 | 精英制模实业(深圳)有限公司 | Quick adjustment angle location instrument of runner electrode |
| CN209969800U (en) * | 2019-01-11 | 2020-01-21 | 江西天键电声有限公司 | Copper male for processing hidden glue inlet |
-
2020
- 2020-03-31 CN CN202010241048.7A patent/CN111673208A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN205254280U (en) * | 2015-09-08 | 2016-05-25 | 精英制模实业(深圳)有限公司 | Quick adjustment angle location instrument of runner electrode |
| CN209969800U (en) * | 2019-01-11 | 2020-01-21 | 江西天键电声有限公司 | Copper male for processing hidden glue inlet |
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| 伍端阳: "数控电火花多轴联动斜向加工在模具加工中的应用", 《模具技术》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114473087A (en) * | 2022-02-28 | 2022-05-13 | 歌尔股份有限公司 | Workpiece inner hole machining method, device, equipment and storage medium |
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Application publication date: 20200918 |