CN217647180U - Continuous extrusion die of high stamping stability copper bar - Google Patents
Continuous extrusion die of high stamping stability copper bar Download PDFInfo
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- CN217647180U CN217647180U CN202221272448.5U CN202221272448U CN217647180U CN 217647180 U CN217647180 U CN 217647180U CN 202221272448 U CN202221272448 U CN 202221272448U CN 217647180 U CN217647180 U CN 217647180U
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Abstract
The utility model discloses a continuous extrusion die of high stamping stability copper bar, include: the die comprises a die sleeve and a die core, wherein the die core is arranged in the die sleeve, an extrusion opening is formed in the die core and comprises a material guide hole and a shaping hole, an outlet is formed in the die sleeve, the material guide hole, the shaping hole and the outlet are sequentially communicated, the material guide hole is in outward flaring arrangement, the cross section of the outer end of the material guide hole comprises a horizontal part, two flaring parts and two arc parts, the two arc parts are respectively connected with the two ends of the horizontal part through the flaring parts, and the shaping hole is of a waist-shaped hole structure. The utility model discloses guaranteed the straightness and the size precision of the appearance of the extrusion row base that come out from the exit, made copper bar internal structure and mechanical properties homogeneity improve simultaneously to improve the punching press stability of copper bar product.
Description
Technical Field
The utility model relates to a technical field of copper bar processing especially relates to a continuous extrusion die of high stamping stability copper bar.
Background
Copper is widely applied to industries such as electric power, automobiles and the like with excellent conductive performance, and copper bar products are often used as connecting pieces to complete connection with an external power supply after being subjected to stamping processing. Therefore, the stamping stability of the copper bar plays an important role in the connection quality of the connecting piece.
One of the reasons is that when the copper bar with larger width and thickness is actually extruded, the central area of the die is most subjected to deformation impact force, and the temperature of the central area is higher than the temperature of other areas due to severe friction, so that the inward deformation amplitude of the transverse central part of the sizing belt of the extrusion die is the largest, the size of the finally obtained central part of the copper bar is not uniform with the size of other parts, the size precision of the copper bar is reduced, the uniformity of the internal structure and the mechanical property of the copper bar is also reduced, the stability of the copper bar product stamping processing is influenced, and the quality defect that the edge of an extrusion blank is not filled fully or the edge is broken due to non-uniform flow speed is directly caused in serious cases.
Disclosure of Invention
The continuous extrusion die for the copper bar with high stamping stability is capable of improving the precision of the extrusion overall dimension of the copper bar and the uniformity of the internal structure and the mechanical property of the copper bar.
The specific technical scheme is as follows:
a continuous extrusion die of high stamping stability copper bar comprises: the die comprises a die sleeve and a die core, wherein the die core is arranged in the die sleeve, an extrusion opening is formed in the die core and comprises a material guide hole and a shaping hole, an outlet is formed in the die sleeve, the material guide hole, the shaping hole and the outlet are sequentially communicated, the material guide hole is in outward flaring arrangement, the cross section of the outer end of the material guide hole comprises a horizontal part, two flaring parts and two arc parts, the two arc parts are respectively connected with the two ends of the horizontal part through the flaring parts, and the shaping hole is of a waist-shaped hole structure.
As a further improvement and optimization of the scheme, the horizontal part is rectangular, the flared part is isosceles trapezoid, and the circular arc part is semicircular.
As a further improvement and optimization of the scheme, the diameter of the circular arc part is larger than the length of the short shaft of the shaped hole, and the ratio of the diameter of the circular arc part to the length of the short shaft of the shaped hole is 1.1-1.5.
As a further improvement and optimization of the scheme, the maximum distance between the circular arc part and the end part of the horizontal part is 3-3.5 times of the thickness of the extruded and discharged blank.
As a further improvement and optimization of the scheme, the length of the short half shaft of the shaping hole is 0.2-0.4 time of the thickness of the extrusion row blank.
As a further improvement and optimization of the scheme, the material guide holes are smoothly connected with the shaping holes through cambered surface channels.
As a further improvement and optimization of the scheme, the depth of the channel of the outlet is set to be 8-12 mm.
As a further improvement and optimization of the scheme, an outlet is arranged on the die sleeve, and the size of the opening of the outlet is larger than that of the opening of the shaping hole.
As a further improvement and optimization of the scheme, a mounting groove is formed in the die sleeve and communicated with the outlet, and the die core is arranged in the mounting groove.
As a further improvement and optimization of the scheme, the extrusion opening and the outlet are coaxially arranged.
Compared with the prior art, the technical scheme has the positive effects that:
the utility model discloses carrying out the in-process that continuous extrusion production extruded row base to the red copper alloy pole of drawing on, setting up the shape and the structure of extrusion mouth on the mold core, guaranteed the straightness and the size precision of the appearance of arranging the base from the extrusion that the exit came out, make copper bar internal structure and mechanical properties homogeneity improve simultaneously to improve the punching press stability of copper bar product.
Drawings
Fig. 1 is a schematic structural view of a continuous extrusion die for copper bars with high stamping stability of the present invention;
fig. 2 isbase:Sub>A schematic structural view ofbase:Sub>A partbase:Sub>A-base:Sub>A of the continuous extrusion die for copper bars with high stamping stability of the present invention;
fig. 3 is a schematic structural view of the position B-B of the continuous extrusion die for copper bars with high stamping stability of the present invention;
in the drawings: 1. a mold core; 2. a material guide hole; 3. shaping a hole; 4. die sleeve; 5. an outlet; 6. extruding the opening; 21. a circular arc portion; 22. a flared part; 23. a horizontal portion.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
Fig. 1 is the utility model relates tobase:Sub>A continuous extrusion die's of high stamping stability copper bar structural schematic diagram, fig. 2 is the utility model relates tobase:Sub>A continuous extrusion die's of high stamping stability copper bar A-A department structural schematic diagram, fig. 3 is the utility model relates tobase:Sub>A continuous extrusion die's of high stamping stability copper bar B-B department structural schematic diagram, as shown in fig. 1-3, the continuous extrusion die ofbase:Sub>A high stamping stability copper bar ofbase:Sub>A preferred embodiment is shown, include: die sleeve 4 and mold core 1, mold core 1 is located in the die sleeve 4, be equipped with extrusion mouth 6 on the mold core 1, extrusion mouth 6 includes guide hole 2 and design hole 3, be equipped with export 5 in the die sleeve 4, guide hole 2 shape hole 3 with export 5 communicates in proper order, guide hole 2 is outside flaring setting, and the cross-section of the outer end of guide hole 2 includes horizontal part 23, two flaring portion 22 and two circular arc portions 21, and two circular arc portions 21 are connected with the both ends of horizontal part 23 through two flaring portion 22 respectively, and horizontal part 23 is the rectangle, flaring portion 22 is isosceles trapezoid, and circular arc portion 21 is semi-circular, and design hole 3 establishes to waist type hole.
As a further improvement and optimization of the scheme, the diameter of the circular arc part 21 is larger than the length of the short axis of the shaping hole 3, and the ratio of the circular arc part to the shaping hole is 1.1-1.5.
As a further improvement and optimization of the scheme, the maximum distance between the circular arc part 21 and the end part of the horizontal part 23 is 3-3.5 times of the thickness of the extruded billet.
As further improvement and optimization of the scheme, the length of the short half shaft of the shaping hole 3 is 0.2-0.4 time of the thickness of the extrusion row blank.
As the further improvement and optimization of the scheme, the material guide holes 2 are smoothly connected with the shaping holes 3 through cambered surface channels.
As a further improvement and optimization of the scheme, the channel depth of the outlet 5 is set to be 8-12 mm.
As a further improvement and optimization of the solution, the opening size of the outlet 5 is larger than the opening size of the shaping hole 3.
As further improvement and optimization of the scheme, the die sleeve 4 is provided with a mounting groove which is communicated with the outlet 5, and the die core 1 is arranged in the mounting groove.
As a further development and optimization of the solution, the extrusion opening 6 is arranged coaxially with the outlet 5.
This embodiment is carrying out the in-process that extrudees in succession the production extrusion row base to the red copper alloy pole of drawing upward, and the shape and its structure of extrusion mouth 6 of setting on mold core 1 have guaranteed the straightness and the size precision of the appearance of the extrusion row base that come out from export 5, make copper bar internal structure and mechanical properties homogeneity improve simultaneously to improve the punching press stability of copper bar product.
The above description is only an example of the preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and those skilled in the art should be able to realize the equivalent alternatives and obvious variations of the present invention.
Claims (10)
1. The utility model provides a continuous extrusion die of high punching press stability copper bar which characterized in that includes: the die comprises a die sleeve and a die core, wherein the die core is arranged in the die sleeve, an extrusion port is arranged on the die core and comprises a material guide hole and a shaping hole, an outlet is formed in the die sleeve, the material guide hole, the shaping hole and the outlet are sequentially communicated, the material guide hole is arranged in an outward flaring manner, the cross section of the outer end of the material guide hole comprises a horizontal part, two flaring parts and two arc parts, the two arc parts are respectively connected with the two ends of the horizontal part through the two flaring parts, and the shaping hole is of a waist-shaped hole structure.
2. The continuous extrusion die for the copper bars with high stamping stability as claimed in claim 1, wherein the horizontal portion is rectangular, the flared portion is isosceles trapezoid, and the circular arc portion is semicircular.
3. The continuous extrusion die for the copper bars with high stamping stability as claimed in claim 1, wherein the diameter of the circular arc portion is greater than the length of the short axis of the shaped hole, and the ratio of the diameter of the circular arc portion to the length of the short axis of the shaped hole is 1.1-1.5.
4. The continuous extrusion die for the copper bars with high stamping stability as claimed in claim 1, wherein the maximum distance between the circular arc portion and the end of the horizontal portion is 3-3.5 times of the thickness of the extruded discharging blank.
5. The continuous extrusion die for the copper bars with high stamping stability as claimed in claim 1, wherein the length of the minor axis of the shaped hole is 0.2-0.4 times of the thickness of the extruded bar blank.
6. The continuous extrusion die for the copper bars with high stamping stability as claimed in claim 1, wherein the material guiding holes are smoothly connected with the shaping holes through cambered-surface channels.
7. The continuous extrusion die for the copper bars with high stamping stability as claimed in claim 6, wherein the channel depth of the outlet is set to be 8-12 mm.
8. The continuous extrusion die for the copper bars with high stamping stability as claimed in claim 1, wherein the opening size of the outlet is larger than the opening size of the shaping hole.
9. The continuous extrusion die for the copper bars with high stamping stability as claimed in claim 8, wherein a mounting groove is formed in the die sleeve, the mounting groove is communicated with the outlet, and the die core is arranged in the mounting groove.
10. The continuous extrusion die for the copper bars with high stamping stability as claimed in claim 9, wherein the extrusion opening is coaxially arranged with the outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221272448.5U CN217647180U (en) | 2022-05-25 | 2022-05-25 | Continuous extrusion die of high stamping stability copper bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221272448.5U CN217647180U (en) | 2022-05-25 | 2022-05-25 | Continuous extrusion die of high stamping stability copper bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217647180U true CN217647180U (en) | 2022-10-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221272448.5U Active CN217647180U (en) | 2022-05-25 | 2022-05-25 | Continuous extrusion die of high stamping stability copper bar |
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| Country | Link |
|---|---|
| CN (1) | CN217647180U (en) |
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2022
- 2022-05-25 CN CN202221272448.5U patent/CN217647180U/en active Active
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