CN112893505B - High-precision matched power supply shell extrusion die - Google Patents
High-precision matched power supply shell extrusion die Download PDFInfo
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- CN112893505B CN112893505B CN202110177979.XA CN202110177979A CN112893505B CN 112893505 B CN112893505 B CN 112893505B CN 202110177979 A CN202110177979 A CN 202110177979A CN 112893505 B CN112893505 B CN 112893505B
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- guide hole
- front guide
- hole
- die
- pilot
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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
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention provides a high-precision matched power supply shell extrusion die which comprises a front die and a rear die, wherein a plurality of front guide holes are uniformly distributed on the circumference of the feeding surface of the front die, a first front guide hole, a second front guide hole, a third front guide hole, a fourth front guide hole, a fifth front guide hole, a sixth front guide hole, a seventh front guide hole, an eighth front guide hole and a ninth front guide hole are formed among the front guide holes, the first front guide hole, the second front guide hole and the third front guide hole are arranged at the upper part of the feeding surface of the front die from left to right, the fifth front guide hole, the sixth front guide hole and the seventh front guide hole are arranged at the lower part of the feeding surface of the front die from left to right, a hanging bridge is arranged in the eighth front guide hole, and the eighth front guide hole are separated into a front small hole and a front large hole by the hanging bridge.
Description
Technical Field
The invention relates to the field of extrusion dies, in particular to a high-precision power supply shell matched extrusion die.
Background
The power supply housing shown in fig. 1 is provided with a plug mounting hole on the inner wall of the left part of the power supply housing, so that the accuracy and the inner hole size of the mounting hole need to be ensured during extrusion molding, and once the inner hole size extruded out of the mounting hole deviates, the mounting hole cannot mount a plug.
Disclosure of Invention
The invention aims to provide a high-precision matching power supply shell extrusion die capable of guaranteeing the accuracy of a power supply shell mounting hole and the size of an inner hole.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a high accuracy cooperation power shell extrusion die, includes front mould and rear mould, circumference evenly distributed has a plurality of preceding bridges on the pan feeding face of front mould, form first preceding guide hole, second preceding guide hole, third preceding guide hole, fourth preceding guide hole, fifth preceding guide hole, sixth preceding guide hole, seventh preceding guide hole, eighth preceding guide hole and ninth preceding guide hole between the preceding bridges, first preceding guide hole, second preceding guide hole and third preceding guide hole set up the upper portion at the pan feeding face of front mould from a left side to the right side, fifth preceding guide hole, sixth preceding guide hole and seventh preceding guide hole set up the lower part at the pan feeding face of front mould from a left side to the right side, eighth preceding guide hole, ninth preceding guide hole and fourth preceding guide hole set up the middle part at the pan feeding face from a left side to the right side, be provided with a hanging bridge in the eighth preceding guide hole, hanging bridge separates eighth preceding guide hole and a preceding guide hole, the butt joint face of front mould and rear mould is provided with the macropore, the mould core is provided with the side of a left side is provided with the front mould core and is used for the shaping shell, and the mould core is used for the shaping shell is little, the mould core is provided with the mould core is used for the centre-to the power shell shaping hole is located to the front mould.
Further, the feed chamfer angles of the first pilot hole, the second pilot hole, the third pilot hole, the fourth pilot hole, the fifth pilot hole, the sixth pilot hole and the seventh pilot hole are 34-36 degrees.
Further, the feed chamfer of the first, second, third, fourth, fifth, sixth and seventh pilot holes is 35 °.
Further, the feed chamfer of the leading small hole is 14-16 degrees.
Further, the feed chamfer of the leading orifice is 15 degrees.
Further, the width of the hanging bridge is 14mm, and the height of the hanging bridge is 55mm.
The beneficial effects of the invention are as follows:
the size of the plug mounting hole in the power supply shell to be formed is 13mm in length and 6mm in width, the deflection amount of the length and the width of the plug mounting hole is required to be smaller than 0.15mm, the power supply shell is fed in a mode of adopting the front guide holes and 9+1 front guide holes, the front guide holes comprise a first front guide hole, a second front guide hole, a third front guide hole, a fourth front guide hole, a fifth front guide hole, a sixth front guide hole, a seventh front guide hole, an eighth front guide hole and a ninth front guide hole, a hanging bridge is arranged in the eighth front guide hole, the hanging bridge divides the eighth front guide hole into a front small guide hole and a front large guide hole, so that ten front guide holes are formed, the hanging bridge is additionally arranged, the strength of a small mold core can be increased, the small mold core is used for forming the outer wall of the plug hole of the power supply shell, and the feeding is split, in addition, the end face of the small mold core is lower than the end face of the mold core, so that when the small mold core is used for forming the outer wall of the plug hole of the power supply shell, the pressed deflection is small, and the hanging bridge is ensured, and the length of the plug mounting hole is smaller than 0.15mm after the plug mounting hole is formed.
Drawings
Fig. 1 is a front view of a front mold of an embodiment of the present invention;
FIG. 2 is a cross-sectional view at A-A of FIG. 1;
FIG. 3 is a partial enlarged view at C of FIG. 2;
FIG. 4 is a partial enlarged view at D of FIG. 2;
fig. 5 is a cross-sectional view of a power supply housing according to an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
as shown in fig. 1 to 5, a high-precision power supply housing extrusion die comprises a front die 1 and a rear die 2, wherein a plurality of front guide bridges 3 are uniformly distributed on the circumference of the feeding surface of the front die 1, a first front guide hole 11, a second front guide hole 12, a third front guide hole 13, a fourth front guide hole 14, a fifth front guide hole 15, a sixth front guide hole 16, a seventh front guide hole 17, an eighth front guide hole 18 and a ninth front guide hole 19 are formed among the front guide bridges 3, the first front guide hole 11, the second front guide hole 12 and the third front guide hole 13 are arranged at the upper part of the feeding surface of the front die 1 from left to right, the fifth front guide hole 15, the sixth front guide hole 16 and the seventh front guide hole 17 are arranged at the lower part of the feeding surface of the front die 1 from left to right, the eighth pilot hole 18, the ninth pilot hole 19 and the fourth pilot hole 14 are arranged in the middle of the feeding surface from left to right, a hanging bridge 181 is arranged in the eighth pilot hole 18, the hanging bridge 181 divides the eighth pilot hole 18 into a pilot small hole 182 and a pilot large hole 183, a mold core 4 is arranged on the butt joint surface of the front mold 1 and the rear mold 2, a small mold core 5 is arranged on the left side of the mold core 4, the small mold core 5 is connected with the hanging bridge 181, the end surface of the small mold core 5 is lower than the end surface of the mold core 4, the rear mold 2 and the front mold 1 form a first rear guide groove 6 for forming an outer frame of the power supply housing 8, the small mold core 5 is used for forming a plug mounting hole 81 of the power supply housing 8, and a discharge hole 7 for forming a middle partition of the power supply housing 8 is arranged in the middle of the mold core 4.
The size of the plug mounting hole 81 in the power supply housing 8 to be formed according to the present invention is 13mm long and 6mm wide, and the length and width of the plug mounting hole 81 are required to be deviated less than 0.15mm, and the present invention adopts the mode of feeding by adopting the pilot holes and 9+1 pilot holes, wherein the pilot holes comprise the first pilot hole 11, the second pilot hole 12, the third pilot hole 13, the fourth pilot hole 14, the fifth pilot hole 15, the sixth pilot hole 16, the seventh pilot hole 17, the eighth pilot hole 18 and the ninth pilot hole 19, wherein a hanging bridge 181 is arranged in the eighth pilot hole 18, the hanging bridge 181 divides the eighth pilot hole 18 into a pilot small hole 182 and a pilot large hole 183, thereby forming ten pilot holes, and the hanging bridge 181 is additionally arranged, so that not only the strength of the small mold core 5 can be increased, the small mold core 5 can be used for forming the outer wall of the plug hole 81 of the power supply housing 8, but also the feeding can be divided.
The thickness P of the small mold core 5 is 5.06mm, the height H is 10mm, so that the small mold core is very thin, and the feeding can generate very large force during extrusion, so that the small mold core can be extruded, if the height of the small mold core is too high, the bending strength of the small mold core can be low, and the small mold core is very easy to deform, therefore, the end face of the small mold core is designed to be lower than the end face of the mold core, and the compression pendulum of the small mold core is smaller when the small mold core is used for forming the outer wall of a plug hole of a power supply shell, so that the deflection of the length and the width of the plug mounting hole after being formed can be ensured to be smaller than 0.15mm.
Further, the feed chamfer a of the first pilot hole 11, the second pilot hole 12, the third pilot hole 13, the fourth pilot hole 14, the fifth pilot hole 15, the sixth pilot hole 16 and the seventh pilot hole 17 is 34 ° to 36 °.
Further, the feed chamfer a of the first pilot hole 11, the second pilot hole 12, the third pilot hole 13, the fourth pilot hole 14, the fifth pilot hole 15, the sixth pilot hole 16 and the seventh pilot hole 17 is 35 °.
Further, the feed chamfer b of the pilot hole 182 is 14 ° to 16 °.
Further, the feed chamfer b of the pilot hole 182 is 15 °.
Further, the width of the hanging bridge 181 is 14mm, and the height of the hanging bridge 181 is 55mm.
A processing technology of a high-precision matched power supply shell extrusion die comprises the following steps:
a. firstly turning the whole outline of a front die and a rear die according to a lathe, wherein the front die and the rear die are made of H13 electroslag steel;
b. the first pilot hole 11, the second pilot hole 12, the third pilot hole 13, the fourth pilot hole 14, the fifth pilot hole 15, the sixth pilot hole 16, the seventh pilot hole 17, the pilot small hole 182, the pilot large hole 183 and the ninth pilot hole 9 of the front mold are washed out by CNC, and when the pilot small hole 182 is milled, the first feeding is milled to be 80mm deep and then is followed to the mold core 4;
the forming process of the power supply shell comprises the following steps:
the aluminum bar is made of the following materials: 6063-T5, aluminium bar diameter is: 178mm, the temperature of the aluminum bar is 480-490 degrees, the temperature of the die is 450-480 degrees, and the extrusion speed is 5.0mm/s.
The aluminum bar enters a first front guide hole 11, a second front guide hole 12, a third front guide hole 13, a fourth front guide hole 14, a fifth front guide hole 15, a sixth front guide hole 16, a seventh front guide hole 17, an eighth front guide hole 18 and a ninth front guide hole 19 from the feeding surface of a front die, aluminum liquid is formed under the high temperature effect of a die, the aluminum liquid enters a rear die under the extrusion of the aluminum bar, finally, a power supply shell outer frame is formed through a first rear guide groove, a small die core and the outer wall of a plug mounting hole of a die core form a power supply shell, the middle of the die core is cut off, and finally, the finished power supply shell is discharged from the rear die after being formed.
The above description should not be taken as limiting the technical scope of the present invention, but should be taken as any modification to the above embodiments according to the technical principles of the present invention; equivalent changes and modifications are within the scope of the present invention.
Claims (6)
1. A high-precision matched power supply shell extrusion die is characterized in that: the power supply plug comprises a front die and a rear die, wherein a plurality of front guide bridges are uniformly distributed on the feeding surface of the front die, a first front guide hole, a second front guide hole, a third front guide hole, a fourth front guide hole, a fifth front guide hole, a sixth front guide hole, a seventh front guide hole, an eighth front guide hole and a ninth front guide hole are formed among the plurality of front guide bridges, the first front guide hole, the second front guide hole and the third front guide hole are formed in the upper portion of the feeding surface of the front die from left to right, the fifth front guide hole, the sixth front guide hole and the seventh front guide hole are formed in the lower portion of the feeding surface of the front die from left to right, an eighth front guide hole, a ninth front guide hole and a fourth front guide hole are formed in the middle of the feeding surface from left to right, a hanging bridge is arranged in the eighth front guide hole, the hanging bridge separates the eighth front guide hole into a front guide hole and a front guide hole, the butt joint surface of the front die and the rear die is provided with a die core, the left side of the small front guide hole is connected with the small front die core and the small front die core is used for forming an outer frame, the small front die core is used for forming the middle die core, and the small front die core is used for forming the middle die core is used for forming the outer frame.
2. The high-precision power-supply-housing extrusion die for power supplies according to claim 1, wherein: the feed chamfer angles of the first pilot hole, the second pilot hole, the third pilot hole, the fourth pilot hole, the fifth pilot hole, the sixth pilot hole and the seventh pilot hole are 34-36 degrees.
3. The high-precision power-supply-housing extrusion die for power supplies according to claim 2, wherein: the feed chamfer of the first pilot hole, the second pilot hole, the third pilot hole, the fourth pilot hole, the fifth pilot hole, the sixth pilot hole and the seventh pilot hole is 35 degrees.
4. The high-precision power-supply-housing extrusion die for power supplies according to claim 1, wherein: the feed chamfer angle of the leading small hole is 14-16 degrees.
5. The high-precision power-supply-housing extrusion die as claimed in claim 4, wherein: the feed chamfer of the leading small hole is 15 degrees.
6. The high-precision power-supply-housing extrusion die for power supplies according to claim 1, wherein: the width of the hanging bridge is 14mm, and the height of the hanging bridge is 55mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110177979.XA CN112893505B (en) | 2021-02-09 | 2021-02-09 | High-precision matched power supply shell extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110177979.XA CN112893505B (en) | 2021-02-09 | 2021-02-09 | High-precision matched power supply shell extrusion die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112893505A CN112893505A (en) | 2021-06-04 |
| CN112893505B true CN112893505B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110177979.XA Active CN112893505B (en) | 2021-02-09 | 2021-02-09 | High-precision matched power supply shell extrusion die |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3763799B2 (en) * | 2002-04-04 | 2006-04-05 | 有限会社矢野エンジニアリング | Porthole dice |
| CN203649035U (en) * | 2013-12-27 | 2014-06-18 | 江阴市江顺模具有限公司 | Extrusion die for aluminum profile of welding line avoiding structure of cylinder tube |
| CN204307963U (en) * | 2014-10-31 | 2015-05-06 | 广州科技职业技术学院 | LED lamp tube extrusion die |
| CN210966412U (en) * | 2018-12-29 | 2020-07-10 | 仪征海天铝业有限公司 | Extrusion die of two hollow square-mouth aluminum alloy sections |
| CN210411970U (en) * | 2019-07-24 | 2020-04-28 | 广东和胜工业铝材股份有限公司 | Arc half-suspension-bridge type dish-shaped aluminum alloy die |
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