CN202621684U - Cold-extruded cross shaft ingot blanking mould - Google Patents
Cold-extruded cross shaft ingot blanking mould Download PDFInfo
- Publication number
- CN202621684U CN202621684U CN 201220223426 CN201220223426U CN202621684U CN 202621684 U CN202621684 U CN 202621684U CN 201220223426 CN201220223426 CN 201220223426 CN 201220223426 U CN201220223426 U CN 201220223426U CN 202621684 U CN202621684 U CN 202621684U
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- plate
- cold
- knife plate
- extruded cross
- cross axle
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Abstract
The utility model discloses a cold-extruded cross shaft ingot blanking mould which comprises a cushion plate; a mould seat is fixedly arranged on the cushion plate; a lower cutter plate is arranged on the mould seat; the lower cutter plate is connected with the mould seat through a gland; the rear end of the lower cutter plate jacks an adjusting screwed pipe; the adjusting screwed pipe is matched with an adjusting screw hole on the mould seat; a shoulder part on the rear end of the adjusting screwed pipe is locked through a pin; the front end of the mould seat is provided with a guide rail seat; the guide rail seat is fixedly connected with the cushion plate and a guide rail is arranged on a back surface; an upper cutter plate is inlaid in a movable template which is slidably matched in the guide rail; the outer end of the upper cutter plate is slidably matched with the front end of the lower cutter plate; the lower end of the movable template is provided with two compression springs with the other ends being jacked on the cushion plate; the front end of the guide rail seat is fixedly connected with a backing plate, and the middle part of the backing plate is provided with an adjusting screw hole; ingot length fixing screw rods which are locked with the backing plate through two locking nuts are arranged in the adjusting screw hole; and the tail ends are opposite to the lower cutter plate. According to the cold-extruded cross shaft ingot blanking mould, the spacing between the upper cutter plate and the lower cutter plate can be accurately adjusted; a slider of a press does not have direct impact on the upper cutter plate and the top point part on a bar is not broken instantly; and the discharge is convenient, and multiple blades of one cutter are realized.
Description
Technical field
The utility model belongs to the blanking die technical field, is specifically related to a kind of cold-extruded blank blanking die.
Background technology
Universal coupling with spider is the important and necessary transmission parts of various style automobiles; Cross axle wherein is a kind of few high accuracy cold-extruded forging product that does not have cutting; The axle journal of cold-extruded cross axle and end face need not turning processing, behind cold extrusion forming, only need just can assemble use through correct grinding.In order to ensure forging quality behind the product cold extrusion forming and strict control correct grinding surplus; Must be controlled at the precision of blank in the reasonable range; Universal joint like certain sedans turns to cross axle, learns that through calculating and experiment the billet weight deviation is comparatively suitable within 0.0005kg.Usually universal joint turns to the general upper and lower knife plates of simple semi arch that adopt of cross axle blank to carry out shearing blanking more; This kind cutting mode is simple and convenient, but the end face of shearing is of poor quality, and the circularity difference of end face cylindrical is big; The billet weight deviation is bigger; A kind of weight is the cold-extruded cross axle of 0.060kg, and its deviation of weight decentralization can not satisfy the requirement of cold-extruded cross axle forging precision at 0.001kg～0.002kg.
One Chinese patent application 200810063524.X for example; The patent of invention that name is called " large size roller cold-upsetting process for stamping and cold-heading diel " discloses; Relate to a kind of large size roller cold-upsetting process for stamping and cold-heading diel, the large size roller cold-upsetting process for stamping may further comprise the steps: with the Cutting stick mould Cutting stick is become roller material section, with the cold-heading diel roller material section is struck out blank roller; Said Cutting stick mould is provided with drawing-inroller, knife edge die, cutting knife, material shelves; Bar and drawing-inroller, knife edge die flexibly connect, and cutting knife is installed in an end of knife edge die, and the material shelves are installed in one side of cutting knife.The cold-heading diel of this invention is provided with push-off pin, punch die, drift, and roller material section, push-off pin all mate with punch die, drift and roller material section coupling, and drift is connected with actuating unit, and said bar adopts high-carbon-chromium bearing steel, and blank diameter is at 23～28 millimeters.The knife edge die structure of being narrated in this patent publication is: decide cutoff tool and move cutoff tool to be all columnar structured; Here there are two problems; The first, bar must at first penetrate within two cylindrical shape cutting knifes and could cut off, so how the later blank of Cutting stick takes out; Surely be a trouble, obviously efficient is low is sure; Second; Moving down of moving cutoff tool is to accomplish by means of the slide block of press and the impact of drift, and what be impacted in other words is the moving cutoff tool of circular state, and the momentum of bump is through moving cutoff tool internal delivery; At first be to cause the inner stress distribution cataclysm of moving cutoff tool; Make cutoff tool produce vibration, distortion, all vibrational energies and deformation energy finally all are converted into the heating of moving cutoff tool, and columnar structured moving cutoff tool is hit owing to the arc surface on its top repeatedly; How long need not, break being its inevitable outcome; Be then, the part momentum of bump is passed to bar through moving cutoff tool, forces the bar fracture with the mode of pushing by force; The bar of this moment then is the whole resistance to deformation of participating in, and the transverse tensile strength of its section is not fully exerted, and the result is that the extruding plane of fracture is uneven, serious and circularity extreme difference subside; In fact; The process of Cutting stick should be sheared separation and make stress as early as possible along the vertical plane transmission by quick impact shear with more uppermost at first being impacted, and parting surface is expansion fast down; Reduce the past bar front and back two aspect transmission of stress as far as possible or have little time past front and back two aspect transmission; Improving the flatness of section as far as possible, certainly, shear gap rationally is provided with and the sharp separation that produces topmost a bit as early as possible of cutoff tool cutting edge also is very important necessary condition.
Summary of the invention
The utility model technical issues that need to address are; Overcome prior art the Cutting stick mould moving, decide the defective that cutoff tool is all columnar unreasonable structure; It is hatch frame that a kind of moving cutoff tool is provided; The gap adjustment of fixed, moving cutoff tool is cross axle blank blanking die easily, and this mould blanking weight precision is high, cross section quality is good, and profile circularity is high.
The purpose of the utility model is achieved through following technical proposals: a kind of cold-extruded cross axle blank blanking die, comprise backing plate, and be fixed with die holder on the backing plate; Die holder is provided with down knife plate; Following knife plate is connected with die holder through gland, and the rear end of following knife plate heads on the adjustment screwed pipe, adjusts screwed pipe and cooperates with adjustment screw on the die holder; The rear end of adjustment screwed pipe is provided with shoulder, and shoulder is through pin and die holder locking; The position separated by a distance at the die holder front end is provided with track base; The bottom of track base is connected with shim through screw, and the track base back side is provided with guide rail, and guide rail is equipped with collapsible form; Last knife plate is embedded in the collapsible form; The outer face of last knife plate is slidingly matched with the front end face of following knife plate, and the collapsible form bottom heads on two compression springs, and the other end of compression spring withstands on the backing plate; The middle part that the front end face of track base is fixedly connected with backup plate, backup plate is provided with the adjusting screw, regulates in the screw and is provided with blank fixed length screw rod, and blank fixed length screw rod is through two locking nuts and backup plate locking, and the tail end of blank fixed length screw rod is relative with following knife plate.
To be embedded in the collapsible form as the last knife plate of moving cutoff tool; The collapsible form cunning fits in the guide rail of track base, and track base and die holder link together through backing plate, cooperates the adjustment screwed pipe that the position of following knife plate is adjusted simultaneously; And lock with pin; The edge of a knife that punching press goes up knife plate before beginning is fitted with a distance, top position of the following knife plate edge of a knife all the time, guarantee that shear gap is reasonable, raising blanking precision.When forcing press is started working; Bar advances from the centre bore of adjustment screwed pipe; The edge of a knife that passes down knife plate stops until the tail end that leans on last blank fixed length screw rod, and collapsible form moves downward under the effect of press ram then, and slide block impacts the position, plane, top of collapsible form; Knife plate glides fast and Cutting stick is become the blank of Len req with following knife plate in the descending drive of collapsible form; Compressing spring when collapsible form is descending simultaneously is that resetting of following prepared, and blank is fallen in the hopper by the discharging opening landing between two compression springs automatically, along with the press ram backhaul is risen; Collapsible form rises to holding state under the effect of compression spring, a blanking operation cycle finishes.
As preferably, last knife plate is circular month dental structure, and the limit that said circular month dental structure is a circular plate is provided with the circular arc notch.
As preferably, a said circular month dental structure is many months dental structures, and dental structure was for being laid with several circular arc notches on the circumference of circular plate in said many months.
As preferably, last knife plate is fixed through screw and collapsible form.
As preferably, backing plate with collapsible form under relative position be provided with a discharging opening.
As preferably, following knife plate is that columnar structured, columnar structured two ends are symmetrical set.
As preferably, the diameter of bore of adjustment screwed pipe is slightly larger than down the diameter of bore of knife plate, the axis of adjustment screwed pipe and the axial alignment of following knife plate.
As preferably, the columnar structured height of following knife plate is greater than the width of gland, and the two ends of gland respectively are provided with at least two screw fixed holes.
As preferably, blank fixed length screw rod and the adjusting screw that matches are used fine thread.
The mould of using the utility model is to diameter≤φ 18mm round steel blanking, blank end face gradient≤1 ° 30 ' and, kerf quality obviously improves; Deviation of weight can be controlled in≤0.0005kg, and through the data-searching contrast, this index reaches the advanced level of industrially developed country; Satisfy of the requirement of high accuracy forging such as cold-extruded cross axle fully to billet weight; Can significantly improve simultaneously blanking die life and follow-up cold-extruded die life, and can save material, reduce cost of goods manufactured.
The beneficial effect of the utility model is:
1, the fit clearance that goes up knife plate and following knife plate can accurately be adjusted;
What 2, press ram impacted is the position, plane, upper end of collapsible form, can not produce direct bump to last knife plate, and upward the cutting edge and the bar of knife plate have certain distance, after quickening, impacts the cutting bar again, helps position, summit moment fracture on the bar;
3, not only discharging is convenient for the circular arc notch of hatch frame, and the action effect of cut-out bar is not second to the cylindrical shape cutoff tool;
4, a cutter multiple-cutting-edge, tool life improves, and the reconditioning number of times can reduce;
5, blank fixed length screw rod and the adjusting screw that matches are used fine thread, meticulous adjustment blanking length.
Description of drawings
Fig. 1 is a kind of embodiment front view sketch map;
Fig. 2 is the left view sketch map of Fig. 1;
Fig. 3 is the vertical view sketch map of Fig. 1;
Fig. 4 is the collapsible form front view sketch map of a kind of embodiment;
Fig. 5 is the A-A cross-sectional schematic of Fig. 4;
Fig. 6 is the gland sketch map of a kind of embodiment;
Fig. 7 is a kind of upper slitter plate structure sketch map of circular month dental structure;
Fig. 8 is the upper slitter plate structure sketch map of another kind of embodiment.
Among the figure, backing plate 1; Die holder 2; Following knife plate 3; Front end face 31; Gland 4; Screw fixed hole 41; Adjustment screwed pipe 5; Shoulder 51; Pin 52; Adjustment screw 6; Track base 7; Guide rail 71; Collapsible form 8; Compression spring 81; Open slot 82; Heavy hole 83; Counterbore 84; Last knife plate 9; Outer face 91; Circular arc notch 92; Backup plate 10; Regulate screw 101; Blank fixed length screw rod 11; Locking nut 12; Discharging opening 13.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiments the utility model is further described.
Embodiment 1: shown in Fig. 1～3, a kind of cold-extruded cross axle blank blanking die comprises backing plate 1; Be fixed with die holder 2 on the backing plate 1, die holder 2 is provided with down knife plate 3, and following knife plate 3 is connected with die holder 2 through gland 4; The rear end of following knife plate 3 heads on adjustment screwed pipe 5; Adjustment screwed pipe 5 cooperates with adjustment screw 6 on the die holder 2, and the rear end of adjustment screwed pipe 5 is provided with shoulder 51, and shoulder 51 locks through pin 52 and die holder 2; Be provided with track base 7 at die holder 2 front ends position separated by a distance; The bottom of track base 7 is fixedly connected with backing plate 1 through screw, and track base 7 back sides are provided with guide rail 71, and guide rail 71 is equipped with collapsible form 8; Last knife plate 9 is embedded in the collapsible form 8, and fixing through screw and collapsible form 8.The outer face 91 of last knife plate 9 is slidingly matched with the front end face 31 of following knife plate, and fit clearance is controlled in the 0.06mm, to guarantee the blanking precision.Collapsible form 8 bottoms head on two compression springs 81, and the other end of compression spring 81 withstands on the backing plate 1; The middle part that the front end face of track base 7 is fixedly connected with backup plate 10, backup plate 10 is provided with adjusting screw 101; Regulate in the screw 101 and be provided with blank fixed length screw rod 11; Blank fixed length screw rod 11 and the adjusting screw 101 that matches with it are used fine thread; Blank fixed length screw rod 11 is through two locking nuts 12 and backup plate 10 lockings, and the tail end of blank fixed length screw rod 11 is relative with following knife plate 3.Last knife plate 9 is circular month dental structure, and the limit that said circular month dental structure is a circular plate is provided with circular arc notch 92, and circular arc notch 92 not only discharging is convenient, and the action effect that cuts off bar is as shown in Figure 7 not second to the cylindrical shape cutoff tool.
To be embedded in the collapsible form 8 as the last knife plate 9 of moving cutoff tool; Collapsible form 8 sliding fitting in the guide rail 71 of track base 7, track base 7 links together through backing plate 1 with die holder 2, cooperates the position of 5 pairs of following knife plates 3 of adjustment screwed pipe to adjust simultaneously; And with pin 52 lockings; The edge of a knife that punching press goes up knife plate 9 before beginning is fitted with a distance, top position of following knife plate 3 edges of a knife all the time, guarantee that shear gap is reasonable, raising blanking precision.When forcing press is started working; Bar advances from the centre bore of adjustment screwed pipe 5; The edge of a knife that passes down knife plate 3 stops until the tail end that leans on last blank fixed length screw rod 11, and collapsible form 8 moves downward under the effect of press ram then, and slide block impacts the position, plane, top of collapsible form 8; Knife plate 9 glides fast and Cutting stick is become the blank of Len req with following knife plate 3 in the collapsible form 8 descending drives; When collapsible form 8 is descending simultaneously compression spring 81 prepare for resetting then, blank is fallen in the hopper by discharging opening 13 landings between two compression springs 81 automatically, along with the press ram backhaul is risen; Collapsible form 8 rises to holding state under the effect of compression spring 81, a blanking operation cycle finishes.
Discharging opening 13 be located on the backing plate 1 with collapsible form 8 under relative position, discharging opening is a manhole, the diameter in hole both had been greater than the diameter of bar, again greater than more than 2/3 of charge length, fell in order to avoid stop up blank.
Following knife plate 3 is that columnar structured, columnar structured two ends are symmetrical set, and two ends can be used as the cutting edge of knife plate down, when the blunt reconditioning together of pulling down is again later all used at two ends.
The diameter of bore of adjustment screwed pipe 5 is slightly larger than down the diameter of bore of knife plate 3, the axis of adjustment screwed pipe 8 and the axial alignment of following knife plate 3.
The columnar structured height of following knife plate 3 is greater than the width of gland 4, to leave the surplus of repeatedly reconditioning; The two ends of gland 4 respectively are provided with at least two screw fixed holes 41, as long as width allows to establish several screw fixed holes more, some can make bar safe fixing, as shown in Figure 6 to the fastening force of gland 4 greatly.
Embodiment 2: a circular month dental structure is bimonthly dental structure, promptly on the circumference of circular plate, is laid with 92,2 notch interchangeable of 2 circular arc notches and uses; Blade wearing and tearing rust when one of them notch; Can with go up knife plate unload turn 180 ° after refitting, continue blanking with another notch, so can save the man-hour of the reconditioning edge of a knife; All the other structures are with embodiment 1, and are as shown in Figure 8.
Use the mould of the utility model, to diameter≤φ 18mm round steel blanking, blank end face gradient≤1 ° 30 '; Kerf quality obviously improves, and deviation of weight can be controlled≤0.0005kg, contrasts through data-searching; Reach the advanced level of industrially developed country, satisfy of the requirement of high accuracy forging such as cold-extruded cross axle fully, can significantly improve blanking die life and follow-up cold-extruded die life simultaneously billet weight; And can save material, reduce cost of goods manufactured.
The utility model can use at various bar fine-edge blanking moulds; Have the gap and adjust accurately, go up the advantage that knife plate can not produce direct bump, cutter multiple-cutting-edge tool durability raising; If those skilled in the art does simple the modification or replacement to the foregoing invention content; Such change can not think to break away from the scope of the utility model, and all will be included within the scope of claim of the utility model the conspicuous modification of those skilled in the art like this.
Claims (9)
1. a cold-extruded cross axle blank blanking die comprises backing plate, it is characterized in that; Be fixed with die holder on the backing plate, die holder is provided with down knife plate, and following knife plate is connected with die holder through gland; The rear end of following knife plate heads on the adjustment screwed pipe; The adjustment screwed pipe cooperates with adjustment screw on the die holder, and the rear end of adjustment screwed pipe is provided with shoulder, and shoulder passes through pin and die holder locks; The position separated by a distance at the die holder front end is provided with track base; The bottom of track base is connected with shim through screw, and the track base back side is provided with guide rail, and guide rail is equipped with collapsible form; Last knife plate is embedded in the collapsible form; The outer face of last knife plate is slidingly matched with the front end face of following knife plate, and the collapsible form bottom heads on two compression springs, and the other end of compression spring withstands on the backing plate; The middle part that the front end face of track base is fixedly connected with backup plate, backup plate is provided with the adjusting screw, regulates in the screw and is provided with blank fixed length screw rod, and blank fixed length screw rod is through two locking nuts and backup plate locking, and the tail end of blank fixed length screw rod is relative with following knife plate.
2. cold-extruded cross axle blank blanking die according to claim 1 is characterized in that, last knife plate is circular month dental structure, and the limit that said circular month dental structure is a circular plate is provided with the circular arc notch.
3. cold-extruded cross axle blank blanking die according to claim 2 is characterized in that, a said circular month dental structure is many months dental structures, and dental structure was for being laid with several circular arc notches on the circumference of circular plate in said many months.
4. according to claim 1 or 2 or 3 described cold-extruded cross axle blank blanking dies, it is characterized in that last knife plate is fixed through screw and collapsible form.
5. cold-extruded cross axle blank blanking die according to claim 4 is characterized in that, backing plate with collapsible form under relative position be provided with a discharging opening.
6. according to claim 1 or 2 or 3 described cold-extruded cross axle blank blanking dies, it is characterized in that following knife plate is that columnar structured, columnar structured two ends are symmetrical set.
7. cold-extruded cross axle blank blanking die according to claim 6 is characterized in that, the diameter of bore of adjustment screwed pipe is slightly larger than down the diameter of bore of knife plate, the axis of adjustment screwed pipe and the axial alignment of following knife plate.
8. cold-extruded cross axle blank blanking die according to claim 6 is characterized in that the columnar structured height of following knife plate is greater than the width of gland, and the two ends of gland respectively are provided with at least two screw fixed holes.
9. cold-extruded cross axle blank blanking die according to claim 7 is characterized in that, blank fixed length screw rod and the adjusting screw that matches are used fine thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220223426 CN202621684U (en) | 2012-05-18 | 2012-05-18 | Cold-extruded cross shaft ingot blanking mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220223426 CN202621684U (en) | 2012-05-18 | 2012-05-18 | Cold-extruded cross shaft ingot blanking mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202621684U true CN202621684U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220223426 Expired - Fee Related CN202621684U (en) | 2012-05-18 | 2012-05-18 | Cold-extruded cross shaft ingot blanking mould |
Country Status (1)
| Country | Link |
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| CN (1) | CN202621684U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103418662A (en) * | 2012-05-18 | 2013-12-04 | 万向钱潮股份有限公司 | Cold extrusion blanking die for cross shaft blanks |
| CN103934350A (en) * | 2014-04-29 | 2014-07-23 | 中材科技股份有限公司 | Adjustable fast-replacement type gold grain punching die |
| CN104889470A (en) * | 2015-06-04 | 2015-09-09 | 上海交通大学 | Shearing blanking die with quantitative and adjustable parameters |
-
2012
- 2012-05-18 CN CN 201220223426 patent/CN202621684U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103418662A (en) * | 2012-05-18 | 2013-12-04 | 万向钱潮股份有限公司 | Cold extrusion blanking die for cross shaft blanks |
| CN103934350A (en) * | 2014-04-29 | 2014-07-23 | 中材科技股份有限公司 | Adjustable fast-replacement type gold grain punching die |
| CN103934350B (en) * | 2014-04-29 | 2016-02-24 | 中材科技股份有限公司 | Adjustable quick-changing type goldc grains die cutting die |
| CN104889470A (en) * | 2015-06-04 | 2015-09-09 | 上海交通大学 | Shearing blanking die with quantitative and adjustable parameters |
| CN104889470B (en) * | 2015-06-04 | 2017-04-19 | 上海交通大学 | Shearing blanking die with quantitative and adjustable parameters |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20180518 |