CN104550607A - Rotary forge forming die and rotary forge forming method - Google Patents
Rotary forge forming die and rotary forge forming method Download PDFInfo
- Publication number
- CN104550607A CN104550607A CN201410831959.XA CN201410831959A CN104550607A CN 104550607 A CN104550607 A CN 104550607A CN 201410831959 A CN201410831959 A CN 201410831959A CN 104550607 A CN104550607 A CN 104550607A
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- China
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- patrix
- counterdie
- press forming
- excellent suitability
- rotation
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/025—Special design or construction with rolling or wobbling dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
- B21J7/02—Special design or construction
- B21J7/14—Forging machines working with several hammers
- B21J7/16—Forging machines working with several hammers in rotary arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
Abstract
The invention discloses a rotary forge forming die and a rotary forge forming method. The rotary forge forming die comprises an upper die (8) and a lower die, wherein through the downward impact action of the upper die (8), a blank on the lower die is subjected to forge forming, the lower die can be driven by a motor so as to rotate by taking a vertical rotating axis (C3) as a center, and a center line (C1) of the upper die (8) is inclined relative to the vertical rotating axis (C3) of the lower die. By adopting the rotary forge forming die and the rotary forge forming method, the equipment tonnage can be reduced, the manufacturing cost is reduced, the production efficiency of aluminum alloy wheels and the like can be effectively improved, and the production cost is reduced.
Description
Technical field
The present invention relates to a kind of rotation excellent suitability for press forming mould and rotate forging and molding method, belonging to metal-pressed machine field.
Background technology
Automotive wheel is the vitals ensureing vehicle safety travel.Compared to steel wheel, aluminum-alloy wheel can alleviate car weight, reduce fuel consumption, and its bearing capacity is strong, good decorating effect, is more and more subject to the favor of people.In current world aluminum alloy wheel manufacturing, lightweight, product quality, manufacturing cost have become three large core competition factors of product.The aluminum-alloy wheel production technology that enterprise generally adopts both at home and abroad at present mainly contains low pressure casting method, squeeze casting method, forging method three kinds.
Being most widely used of low pressure casting method, have the advantages such as production efficiency is high, product percent of pass is high, stock utilization is high, production cost is low, shortcoming is wheel is that cast sturcture, wheel strength are not high.
Squeeze casting method, also referred to as liquid forging, it is a kind of manufacturing process between casting and forging, the metallographic structure of its product is close to forging tissue, product mechanical performance is between low pressure casting method and forging method, shortcoming is that extrusion casting apparatus and mould are comparatively complicated, and production efficiency is low, and production cost is higher.
Forging method, is generally divided into solid forging method and forging spinning process two kinds.Solid forging method is the profile utilizing large-tonnage forging equipment ingot casting directly to be forged in type cavity mould wheel rim and spoke, then machining obtains the method for finished product; Forging spinning process first utilizes large-tonnage forging equipment that ingot casting is forged wheel blanks in type cavity mould, and then mould pressing wheel rim, and last machining makes finished product.Compared to low pressure casting method, squeeze casting method, forging method produces aluminum-alloy wheel, generally need more than nominal pressure thousands of tons of even the large-tonnage forging equipment of ten thousand tons, its production procedure is long, cost is the highest, but owing to forging dense structure, wheel strength is high, under the condition that intensity is identical, forging wheel is lighter than the weight of casting wheel.Although the technical difficulty of forging method is high, fund input amount large, due to the advantage that forging wheel is lightweight, intensity is high, increasing Factory starts to adopt forging method (utilizing forging equipment) to manufacture aluminum-alloy wheel both at home and abroad.
Summary of the invention
The object of the invention is, overcome the deficiency of existing manufacturing technology, a kind of rotation excellent suitability for press forming mould and the rotation forging and molding method that can reduce equipment tonnage, reduction manufacturing cost are provided, effectively can improve the production efficiency of aluminum-alloy wheel etc., reduce production cost.
For achieving the above object, rotation excellent suitability for press forming mould of the present invention is configured to, comprise patrix and counterdie, by the downward percussion action of patrix, the blank be positioned on counterdie is forged and pressed, described counterdie can be driven by a motor and rotate centered by vertical pivot center, and the center line of described patrix is inclined relative to the vertical pivot center of described counterdie.
Rotate centered by vertical pivot center because counterdie can be driven by a motor, the center line carrying out the patrix of descending punching press action is inclined relative to the vertical pivot center of counterdie, thus, the rotation of counterdie can be utilized to carry out local to blank and rotate forging and stamping.Now, patrix only acts on the sub-fraction of blank surface to the forming pressure of blank, therefore can realize the shaping of large-size workpiece with less plastic force.Adopt the present invention, the forging and molding of large-size workpiece not only can be realized on the little tonnage hydraulic of routine, replace pressure to be its conventional forging equipment of 20 times, and die life is long, work noise is little, energy consumption is low, the manufacturing enterprise being especially applicable to middle and small scale produces.
In addition, patrix moves up and down and carries out percussion action, thus, patrix side structure movable up and down can be avoided too complicated, and the action control shaped also is easier to by carrying out counterdie driving rotating.
The present invention is preferred, described patrix is fixed on model fixing seat, upper model fixing seat is formed with seam, described patrix is chimeric with this seam, the bottom surface of described seam is formed as the planar bevels tilted relative to above-mentioned vertical pivot center, and the upper surface of described patrix is formed as the plane engaged with this bottom surface.
So, by the structure that enables patrix chimeric with seam simple and reliable fix patrix, and utilize the joint of the upper surface of patrix and the bottom surface of seam to realize locating, ensure the installation accuracy of patrix in a simple and efficient manner.
The present invention is preferred, on described model fixing seat outer peripheral face on be formed with the tapped through hole be through to in the seam of fovea superior, the outer peripheral face of described patrix is formed with groove, and the front end screwing in the screw of described tapped through hole enters this groove.
So, simple structure can be utilized to realize fixing patrix.
The present invention is preferred, described counterdie is fixed on die shoe, die shoe has the die shoe the latter half be fixed on press bed and the die shoe the first half of fixing described counterdie, and described die shoe the first half can be driven by described motor thus rotate relative to described die shoe the latter half.
The present invention is preferred, and described patrix freely can rotate centered by described vertical pivot center.
The present invention is preferred, and described patrix is arranged on press top shoe by upper model fixing seat, and described upper model fixing seat freely can rotate centered by described vertical pivot center relative to this press top shoe.
Because motor drives counterdie to rotate, blank can be driven to rotate; The descending compacting blank of patrix, the frictional force between it and blank can make patrix rotating in same direction.Patrix is formed as the structure of passive rotation, can prevent blank and patrix profile from producing Relative friction and causing the wearing and tearing of mould and surface of the work.
The shaping dies that rotation excellent suitability for press forming mould of the present invention is especially suitable as aluminum-alloy wheel carrys out forming said alloy wheel.
The invention still further relates to a kind of rotation forging and molding method, the method uses the rotation excellent suitability for press forming mould of above-mentioned arbitrary structure to carry out excellent suitability for press forming to blank, carrying out in this excellent suitability for press forming process, patrix is made to carry out percussion action, further, described counterdie is driven to rotate centered by vertical pivot center by motor.
Adopt the method, the technique effect identical with the effect of description in above-mentioned rotation forge die can be obtained.
In this rotation forging and molding method, can be rotated by counterdie described in described motor Continuous Drive.
Owing to being that Continuous Drive counterdie rotates, thus, forming efficiency is high and control is simple.
Accompanying drawing explanation
Fig. 1 ~ 4 are the schematic diagram utilizing the rotation excellent suitability for press forming mould be arranged on press to carry out each stage of forming process of aluminum-alloy wheel shaping, also show the structure rotating excellent suitability for press forming mould in figure simultaneously;
Fig. 5 is the accompanying drawing of the mounting structure representing patrix and upper model fixing seat.
Wherein, 1. press lower table, 2. die shoe the latter half, 3. die shoe the first half, 4. counterdie outer body, 5. counterdie inner bulk, 6. ejector beam, 7a. aluminum alloy blank, 7b, 7c. forge and press semi-finished product, 7d. forges and presses finished product, 8. patrix, 9. goes up model fixing seat, 10. plain thrust bearing, 11. roller bearings, 12. patrix bases, 13. patrix overcoats, 14. press top shoes.
Detailed description of the invention
With reference to the accompanying drawings the preferred embodiment of the present invention is described in detail.
Fig. 1 ~ Fig. 4 is the schematic diagram utilizing the rotation excellent suitability for press forming mould be arranged on press to carry out each stage of forming process of aluminum-alloy wheel shaping, also shows the structure rotating excellent suitability for press forming mould in figure simultaneously.Fig. 5 is the accompanying drawing of the mounting structure representing patrix and upper model fixing seat.This rotation excellent suitability for press forming mould is for carrying out the shaping of aluminum-alloy wheel, and this rotation excellent suitability for press forming mould comprises upper die component and lower mold assemblies.
Described upper die component comprises patrix 8 and upper model fixing seat 9, and wherein, patrix 8 is installed on model fixing seat 9, after installation, and the center line C1 of patrix 8 and vertical (vertically) rotation C2 relative tilt certain angle of upper model fixing seat 9; Above upper model fixing seat 9, plain thrust bearing 10 is housed, double-row conical bearing 11 is equipped with in outside, and is fixed on press top shoe 14 by patrix base 12 and patrix overcoat 13, realizes moving up and down under the driving of press top shoe 14.Plain thrust bearing 10 and roller bearing 11 realize freely rotating centered by its rotation C2 for making upper model fixing seat 9.
As Fig. 5 represents in detail, upper model fixing seat 9 has the seam 91 to fovea superior, the bottom surface 91a of seam 91a is formed as the planar bevels of the rotation C2 inclination predetermined angular (after installation patrix 8, the center line C1 perpendicular to patrix 8) relative to upper model fixing seat 9.The outer peripheral face 92 of upper model fixing seat 9 is formed with tapped through hole 92a, and this tapped through hole 92a is through to seam 91.This tapped through hole 92a screws in for screw 99 (see Fig. 1).
In addition, the upper surface 81 of patrix 8 is formed as plane, this patrix 8 embed on model fixing seat 9 seam 91 in time, this upper surface 81 engages (playing positioning action) with the bottom surface 91a of seam 91, makes the center line C1 of the patrix 8 and rotation C2 of upper model fixing seat 9 fold predetermined angular.The outer peripheral face 82 of patrix 8 is formed the groove 82a of annular, and this groove 82a enters for the tip (front end) of above-mentioned screw 99, thus realizes fixing patrix 8.
Described lower mold assemblies comprises counterdie (4,5) and die shoe: counterdie is split-type structural, comprise counterdie outer body 4 and counterdie inner bulk 5, the two is bolted on together, and counterdie outer body 4 is bolted on die shoe (specifically die shoe the first half 3); Die shoe is made up of two parts, its the latter half and die shoe the latter half 2 are fixed on press bed, its the first half and realize being connected with plain thrust bearing similar in upper die component and roller bearing (all not shown) by one group between die shoe the first half 3 with die shoe the latter half 2, and driven by motor, reductor and belt (all not shown), counterdie realization can be driven to be the rotation of axle with its vertical pivot center C3 (real in straight line with C2).
Below the rotation forging and molding method using above-mentioned rotation excellent suitability for press forming mould to carry out forming said alloy wheel is described.
First, as shown in Figure 1, aluminum alloy blank 7a is placed on counterdie (inner bulk 5), under the driving of motor, counterdie is rotated continuously, and, make patrix 8 carry out punching press action downwards shown in arrow in figure.Because the center line C1 of patrix 8 is tilt relative to vertical direction (pressing direction), thus, what patrix 8 couples of aluminum alloy blank 7a carried out is local punching press (forging and stamping).
The situation that what Fig. 2 and Fig. 3 represented is in forging and stamping process, aluminum alloy blank 7a is by the shape forged and pressed as forging and stamping semi-finished product 7b, 7c.When forging and pressing the shape to the forging and stamping finished product 7d shown in Fig. 4, terminate forging and stamping, patrix 8 is upwards regained.Utilize the ejector beam 6 running through the central part of counterdie (4,5) along the vertical direction will forge and press finished product 7d jack-up, make its demoulding.
Adopt above-mentioned embodiment, utilize the patrix with vertical-rotation-axis relative tilt predetermined angular, continuously local is carried out to aluminum alloy blank and rotate forging and stamping.Because patrix only to act on the sub-fraction on Forming Workpiece surface to the forming pressure of aluminum alloy blank, the shaping of large-size workpiece therefore can be realized with less plastic force.Adopt present embodiment, the forging and molding of aluminum-alloy wheel not only can be realized on the little tonnage hydraulic of routine, pressure is replaced to be its conventional forging equipment of 20 times, and die life is long, work noise is little, energy consumption is low, the Factory being especially applicable to middle and small scale produces reflectal wheel.
In addition, adopt above-mentioned embodiment, patrix 8 is arranged in the seam 91 of the inclination of model fixing seat 9, realizes location with fastening by seam 91 and fastening screw 99 (jackscrew).Fastening screw 99 can be single or multiple.The angle of inclination of the seam 91 (bottom surface 91a) of upper model fixing seat 9 determine patrix 8 install after angle, make the contact area of patrix profile and blank and part of the lower die profile define the cross sectional shape of workpiece.This angle is similar to puts the pivot angle that is ground in shape, but this technique and pendulum grinds unlike: 1. in this technique, patrix does not swing, to rotate; 2. this technique can be used on common forging equipment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Such as, in the above-described embodiment, be illustrated to make wheels, but the present invention also goes for the shaping of the parts of other shapes that are centrosymmetric.
In addition, in the above-described embodiment, form the groove of annular, but the shape of groove being not limited to this at the outer peripheral face of patrix, is not yet can of annular.
In addition, in the above-described embodiment, in excellent suitability for press forming process, counterdie is rotated continuously, but, also can be after patrix completes the percussion action of stipulated number (1 time or repeatedly), make counterdie rotate predetermined angular.
Claims (9)
1. rotate an excellent suitability for press forming mould, comprise patrix (8) and counterdie, by the downward percussion action of patrix (8), the blank be positioned on counterdie is forged and pressed, it is characterized in that,
Described counterdie can be driven by a motor and rotate centered by vertical pivot center (C3), and the center line (C1) of described patrix (8) is inclined relative to the vertical pivot center (C3) of described counterdie.
2. rotation excellent suitability for press forming mould according to claim 1, is characterized in that,
Described patrix (8) is fixed on model fixing seat (9), and upper model fixing seat (9) is formed seam (91), and described patrix (8) is chimeric with this seam (91),
The bottom surface (91a) of described seam (91) is formed as the planar bevels tilted relative to above-mentioned vertical pivot center (C3), and the upper surface (81) of described patrix (8) is formed as the plane engaged with this bottom surface (91a).
3. rotation excellent suitability for press forming mould according to claim 2, is characterized in that,
On described model fixing seat (9) outer peripheral face (92) on be formed with the tapped through hole (92a) be through to in the seam (91) of fovea superior, the outer peripheral face (82) of described patrix (8) is formed with groove (82a), and the front end screwing in the screw (99) of described tapped through hole (92a) enters this groove (82a).
4. rotation excellent suitability for press forming mould according to claim 1, it is characterized in that, described counterdie is fixed on die shoe, die shoe has the die shoe the latter half (2) be fixed on press bed and the die shoe the first half (3) of fixing described counterdie, and described die shoe the first half (3) can be driven by described motor thus rotate relative to described die shoe the latter half (2).
5. the rotation excellent suitability for press forming mould according to any one of Claims 1 to 4, is characterized in that, described patrix (8) freely can rotate centered by described vertical pivot center.
6. rotation excellent suitability for press forming mould according to claim 5, it is characterized in that, described patrix (8) is arranged on press top shoe (14) by upper model fixing seat (9), and described upper model fixing seat (9) freely can be rotated centered by described vertical pivot center relative to this press top shoe (14).
7. the rotation excellent suitability for press forming mould according to any one of Claims 1 to 4, is characterized in that, is the shaping dies of aluminum-alloy wheel.
8. rotate a forging and molding method, it is characterized in that,
The rotation excellent suitability for press forming mould according to any one of claim 1 ~ 7 is used to carry out excellent suitability for press forming to blank,
Carrying out in this excellent suitability for press forming process, making patrix (8) carry out percussion action, and, drive described counterdie to rotate centered by vertical pivot center (C3) by motor.
9. rotation forging and molding method according to claim 8, is characterized in that, is rotated by counterdie described in described motor Continuous Drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410831959.XA CN104550607B (en) | 2014-12-26 | 2014-12-26 | Rotary forge forming die and rotary forge forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410831959.XA CN104550607B (en) | 2014-12-26 | 2014-12-26 | Rotary forge forming die and rotary forge forming method |
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| CN104550607A true CN104550607A (en) | 2015-04-29 |
| CN104550607B CN104550607B (en) | 2017-05-03 |
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| CN201410831959.XA Expired - Fee Related CN104550607B (en) | 2014-12-26 | 2014-12-26 | Rotary forge forming die and rotary forge forming method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215238A (en) * | 2015-09-17 | 2016-01-06 | 苏州新协力特种工业模板有限公司 | A kind of wheel pendulum rolles over apparatus for shaping |
| CN108687494A (en) * | 2018-05-08 | 2018-10-23 | 青岛北海车轮有限公司 | A kind of die mould manufacturing process of wheel rim |
| US10576531B2 (en) * | 2015-10-08 | 2020-03-03 | Hitachi Metals, Ltd. | Method and apparatus for producing forging by rotary forging |
| CN110891708A (en) * | 2017-07-14 | 2020-03-17 | 株式会社捷太格特 | Bearing unit manufacturing device and bearing unit manufacturing method |
| CN112792285A (en) * | 2021-01-15 | 2021-05-14 | 常熟市龙特耐磨球有限公司 | Steel ball overturning and forging device |
| CN112846027A (en) * | 2020-12-30 | 2021-05-28 | 德阳万鸿重型锻造有限公司 | Punching press formula forging hammer equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112846027A (en) * | 2020-12-30 | 2021-05-28 | 德阳万鸿重型锻造有限公司 | Punching press formula forging hammer equipment |
| CN112792285A (en) * | 2021-01-15 | 2021-05-14 | 常熟市龙特耐磨球有限公司 | Steel ball overturning and forging device |
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|---|---|
| CN104550607B (en) | 2017-05-03 |
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