CN201768859U - Cross wedge rolling mould for connecting rod forge piece blank - Google Patents
Cross wedge rolling mould for connecting rod forge piece blank Download PDFInfo
- Publication number
- CN201768859U CN201768859U CN2010202322897U CN201020232289U CN201768859U CN 201768859 U CN201768859 U CN 201768859U CN 2010202322897 U CN2010202322897 U CN 2010202322897U CN 201020232289 U CN201020232289 U CN 201020232289U CN 201768859 U CN201768859 U CN 201768859U
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- China
- Prior art keywords
- connecting rod
- wedge
- mould
- tapered region
- size
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- Expired - Lifetime
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Abstract
The utility model discloses a cross wedge rolling mould for a connecting rod forge piece blank, which is mainly used for performing mill processing on the connecting rod precise forge piece blank. The main technical scheme is that: the wedge-shaped positions of wedge-shaped regions of the original mould are sunk by one distance to reserve a space which is not to be shaped; and the width of working surfaces of the wedge-shaped positions is reduced, so that repeated rolling is avoided. According to the actual application of the cross wedge rolling mould, the cross wedge rolling mould overcomes the defects that the two ends of the bland are hollow and the linearity does not meet the requirement fundamentally, effectively improves the quality of the blank and meets the production requirements.
Description
One, technical field
The utility model belongs to a kind of double-roller type machinery base mould, is mainly used in the rolling processing of connecting rod finish forge spare base.
Two, background technology
The considerable part of current mobility car engine connecting rod forging base all adopts cross wedge rolling to finish, its basic technology (see figure 1), with the bar III that is heated to after the uniform temperature, sending into two equally is installed in roller mill main axle II and goes up in the middle of the homodromal mould I that has a wedge shape projection, bar III is under the drive of mould, do and the reverse gyration of mould, the radial compression distortion takes place and extends axially distortion in bar under mould wedge shape curved surface and the effect of mould roll forming face simultaneously, thereby being configured as ladder axial workpiece (see figure 2), also is connecting rod base Tu described in the utility model.Wedge shape projection mould I (seeing Fig. 3,4) wherein has the leading portion, stage casing, back segment of 1,2,3,4, four tapered region of tapered region and the wedge-type shape of back segment to see Fig. 5,6,7,8 respectively, and wherein the size of the H of wedge shape projection is at 9-----10mm.Cross wedge rolling technique is the advanced method of processing connecting rod forging base, and forming speed is fast, and production cost is low, the stock utilization height, and metallic fiber is continuous, can improve heat place performance.But the specification requirement that hollow phenomenon and linearity do not reach forging usually appears in the two ends of rolled parts in the actual operation of rolling, there is hollow blank to scrap, the blank linearity does not reach requirement, to cause manipulator correctly the clamping blank deliver in the blocker die cavity, badly influence the processing of next procedure, cause production efficiency low.
Three, utility model content
The main technical problems to be solved in the utility model is: the defective according to the cross wedge rolling that has connecting rod forging base now exists on the basis of original mould, by improving, provides a kind of new wedge shape mould.Fundamentally overcome the blank two ends and the defective hollow, that linearity does not reach requirement occurs, improve the quality of blank and satisfy the demand of producing.
Main technical schemes of the present utility model is: a, the wedge shape place in the mould tapered region, and with the wedge shape working face distance of sinking, size is at 0.5-1mm, the space of stepping down; B, the wedge shape place face width in the tapered region is reduced, keep size at 20-25mm; The transition position of c, tapered region keeps length, and size is at 60-80mm; D, be arc surface at two working faces of tapered region, its radius size is at 30-40mm.
The utility model is by using proof to the connecting rod forging of several specifications: the cross wedge rolling die running is steadily reliable, and roll-force is even, has avoided the repeat-rolling to rolled parts, and blank the hollow phenomenon in two ends occurs and reduces to 5% by original 20%; During the mould shaping, the distortion of blank is had living space and is allowed potential energy satisfy the straight line requirement, and blank the phenomenon that linearity do not reach requirement occurs and reduces to 3% by original 12%, has improved the quality and the production efficiency of blank effectively.
Four, description of drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is done to describe in further detail.
Fig. 1 is the fundamental diagram of existing cross wedge rolling die.
Fig. 2 is the first blank figure of portion of connecting rod that is rolled into.
Fig. 3 is the shaft side figure that existing cross wedge rolling die launches.
Fig. 4 is the vertical view that existing cross wedge rolling die launches.
Fig. 5, the A-A that is Fig. 4 is to cutaway view.
Fig. 6, the B-B that is Fig. 4 is to cutaway view.
Fig. 7, the C-C that is Fig. 4 is to cutaway view.
Fig. 8, the D-D that is Fig. 4 is to cutaway view.
Fig. 9 is the shaft side figure that the utility model launches.
Figure 10 is the vertical view that the utility model launches.
Figure 11, the A-A that is Figure 10 is to cutaway view.
Figure 12, the B-B that is Figure 10 is to cutaway view.
Figure 13, the C-C that is Figure 10 is to cutaway view.
Figure 14, the D-D that is Figure 10 is to cutaway view.
Five, the specific embodiment
With reference to Fig. 9,10,11,12,13,14, to main technical schemes of the present utility model explanation: a, the t of wedge shape place in mould tapered region 1,2,3, sink one apart from E with the wedge shape working face, size is in the 0.5-1mm (see figure 10), the space of stepping down; B, the face width K of wedge shape place in the tapered region 1,2,3 is reduced, keep size in the 20-25mm (see figure 10); C, tapered region 1 and 2 transition positions keep length L, and size is in the 60-80mm (see figure 10); D, be arc surface at two working faces of tapered region 1, its radius R size is at 30-40mm (seeing Figure 10,11).
With reference to Figure 10,14, in mould tapered region 4, C-----C cuts open distance h of later tapered region 4 plastic section sinking, and size is at 0.5-----1mm, and wherein the size of H is still at 9-----10mm.
Above-mentioned size can be adjusted in scope according to the size of connecting rod specification.
The operation principle of operation principle of the present utility model and existing cross wedge rolling die is basic identical, different is: the wedge shape face width in tapered region 1,2,3 has reduced, avoided repeat-rolling to rolled parts, plasticity reduces when rolling, stress influence reduces to minimumly, has overcome the hollow phenomenon in rolled parts two ends; Because at the t of the wedge shape place of mould tapered region, with distance of wedge shape working face sinking, cut open later distance of plastic section sinking at the C-----C of tapered region 4, make tapered region 2,4 later plastic section not participate in work, compression during the rolled parts shaping and extend axially distortion and have living space and step down, avoided having been guaranteed the straight line requirement of Forging Technology to rolled parts by stretch bending and crowded curved.
The utility model is except that this uses, also applicable to similarly part blank processing.
Claims (1)
1. the cross wedge rolling die of a connecting rod forging base is characterized in that: a, the wedge shape place (t) in mould tapered region (1), (2), (3), and with the wedge shape working face distance (E) of sinking, size is at 0.5-1mm, the space of stepping down; B, wedge shape place face width (K) in tapered region (1), (2), (3) is reduced, keep size at 20-25mm; C, tapered region (1) and (2) transition position keep length (L), and size is at 60-80mm; Two working faces of d, tapered region (1) are arc surface, and its radius (R) size is at 30-40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202322897U CN201768859U (en) | 2010-06-22 | 2010-06-22 | Cross wedge rolling mould for connecting rod forge piece blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202322897U CN201768859U (en) | 2010-06-22 | 2010-06-22 | Cross wedge rolling mould for connecting rod forge piece blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201768859U true CN201768859U (en) | 2011-03-23 |
Family
ID=43748692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202322897U Expired - Lifetime CN201768859U (en) | 2010-06-22 | 2010-06-22 | Cross wedge rolling mould for connecting rod forge piece blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201768859U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284490A (en) * | 2011-06-17 | 2011-12-21 | 重庆大学 | Cross wedge rolling die |
| CN102922291A (en) * | 2012-11-26 | 2013-02-13 | 山东泰金精密成型制品有限公司 | Joint production equipment for producing engine connecting rod finished products by round steel |
| CN111438190A (en) * | 2020-04-10 | 2020-07-24 | 中国科学院金属研究所 | Plate type wedge cross rolling mill |
-
2010
- 2010-06-22 CN CN2010202322897U patent/CN201768859U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284490A (en) * | 2011-06-17 | 2011-12-21 | 重庆大学 | Cross wedge rolling die |
| CN102922291A (en) * | 2012-11-26 | 2013-02-13 | 山东泰金精密成型制品有限公司 | Joint production equipment for producing engine connecting rod finished products by round steel |
| CN111438190A (en) * | 2020-04-10 | 2020-07-24 | 中国科学院金属研究所 | Plate type wedge cross rolling mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110323 |
|
| CX01 | Expiry of patent term |