CN109909414B - Die forging equipment for U-shaped plate forgings and static pressure die forging forming method - Google Patents
Die forging equipment for U-shaped plate forgings and static pressure die forging forming method Download PDFInfo
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- CN109909414B CN109909414B CN201910319397.3A CN201910319397A CN109909414B CN 109909414 B CN109909414 B CN 109909414B CN 201910319397 A CN201910319397 A CN 201910319397A CN 109909414 B CN109909414 B CN 109909414B
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- 238000005242 forging Methods 0.000 title claims abstract description 159
- 230000003068 static effect Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000001141 propulsive effect Effects 0.000 abstract 1
- 230000005484 gravity Effects 0.000 description 11
- 230000007547 defect Effects 0.000 description 6
- 238000003825 pressing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention provides die forging equipment and a forming method for a U-shaped plate type forge piece by adopting static pressure of a straightener. This U style of calligraphy board class forging die forging equipment includes: the straightening machine comprises a straightening machine body and a straightening machine push head which is connected with the straightening machine body in a sliding way; a first head die holder is arranged on the push head of the straightener; the straightening machine body is provided with a second head die holder which is arranged opposite to the first head die holder; the first head die holder is detachably and fixedly connected with a U-shaped plate forging male die; and the second head die holder is detachably and fixedly connected with a U-shaped plate forging female die matched with the U-shaped plate forging male die. Through utilizing the static pressure driving force of the parallel alignment (removal) of straightener, about structure, horizontal direction propulsive static pressure die forging about structure, the present straightener about with original free forging hammer improvement, improved the security environmental protection nature in the forging process, improved the whole thickness homogeneity of forging, further improved production efficiency when having ensured U word board class forging quality.
Description
Technical Field
The invention relates to the technical field of forging, in particular to U-shaped plate forging die forging equipment based on a straightener and a U-shaped plate forging static pressure die forging forming method.
Background
The conventional U-shaped plate is generally produced by adopting die forging or die forging, but the die forging production efficiency is too low, and the die forging needs professional forging equipment and a special die is designed. The method has the defects of high overall manufacturing cost, high production energy consumption, high die manufacturing cost, and the like, and is not suitable for the production of plate forgings in medium and small batches.
The traditional die forging method is to install dies with upper and lower structures on die forging equipment, and to forge the product by utilizing gravity striking in the vertical direction of the hammer head of the equipment or friction pressure. If the gravity striking sound is large in the forging process, noise pollution exists; 2. the gravity striking is easy to cause the splashing of fragments, so that potential safety hazards exist; 3. the gravity striking can cause uneven stress on the bottom of the plate, blank making is carried out on the original electro-hydraulic hammer, the larger the manual hammer opening pressing amplitude is, the larger the travel transmitted to the hammer through the lever is, the larger the forging gravity is, the larger the stress of the plate is, the larger the deformation is, and the thickness is thinned. Therefore, the different force of the hammer can lead to the defects of thickness difference of the plate parts, integral thinning of the bottom, uneven product thickness and the like, and the quality problem of the products.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides U-shaped plate forging die forging equipment based on a left-right structure of a straightener and a forming method for realizing die forging of the U-shaped plate forging by adopting static pressure.
The invention is realized by the following technical scheme:
the invention provides a die forging device of a U-shaped plate type forging based on a straightener, which comprises: the straightening machine comprises a straightening machine body and a straightening machine push head which is in sliding connection with the straightening machine body; further comprises: the driving device is used for driving the push head of the straightening machine and is connected with the first head die holder of the push head of the straightening machine; and a second head die holder arranged opposite to the first head die holder and fixed on the straightener body; the male die of the U-shaped plate forging die is detachably and fixedly connected with the first head die holder; a U-shaped plate forging die female die matched with the U-shaped plate forging die male die; the die of the U-shaped plate forging die is detachably fixed on the second head die holder.
Preferably, the male die of the U-shaped plate forging die is fixed on the first head die holder through a die clamping mechanism.
Preferably, a buffer pad is arranged between the second head die holder and the straightener body.
Preferably, the die of the U-shaped plate forging die is arranged at the end part of the straightener body and is fixed on the second head die holder through a fastening screw.
The invention also provides a forming method for realizing die forging of the U-shaped plate forging by adopting static pressure, and the die forging equipment for the plate forging is used for preparing the U-shaped plate forging by utilizing the driving static pressure of the straightening machine.
Preferably, the method further comprises fixing the blank between the die forging male die of the U-shaped plate type forge piece and the die of the U-shaped plate type forge piece die, and pushing the die of the U-shaped plate type forge piece die to compress the blank on the die of the U-shaped plate type forge piece die.
Preferably, the U-shaped plate forging die is arranged on the straightening machine, has a left-right structure and a horizontal forging direction, and is different from the forging of all the die forging equipment in the vertical structure and the vertical direction.
Preferably, the method aims at the U-shaped plate forgings with symmetrical and asymmetrical two ends, and the symmetrical or asymmetrical height and size requirements can be achieved by modifying the length of the positioning block in the positioning groove of the die of the U-shaped plate forgings.
Preferably, the method aims at the U-shaped plate forgings with two ends of the U-shape forming a certain angle (preferably 70-90 degrees) with the bottom plate of the product, and the inclination angle of the product can meet the requirement by modifying the angles at the two sides of the male die of the U-shaped plate forgings and the female die of the U-shaped plate forgings.
Preferably, the thickness of the U-shaped plate forging piece of the method is 10-25mm, and the total length of the original blank is 180-950mm.
The beneficial effects of the invention are as follows: the static pressure driving force of parallel straightening (moving) of the straightening machine is utilized to improve the static pressure die forging technology of vertical forging forming of the original free forging hammer by utilizing the gravity of a hammer head into the static pressure die forging of the left and right structure and horizontal propelling on the existing straightening machine, so that the safety and environmental protection performance in the forging process are greatly improved, the defect that the thickness errors of plate parts are larger due to different manual hammer opening forces on the original hammer is restrained, blanks are made on the original electro-hydraulic hammer, the larger the manual hammer opening pressing amplitude is, the larger the stroke transmitted to the hammer through the lever is, the larger the forging gravity is, the larger the plate parts are deformed, and the thickness is thinned. Therefore, the difference of the opening hammer force can lead to the thickness difference of the plate parts, the static pressure of the straightening machine is utilized for mechanical blank making, the thickness error of the plate parts is ensured, the overall thickness uniformity of the forge piece is greatly improved, and the production efficiency is further improved while the quality of the U-shaped plate die forge piece is further ensured.
Drawings
FIG. 1 is a side (front) view of a plate forging apparatus provided by an embodiment of the present invention;
fig. 2 is a top view of a plate forging die forging apparatus provided by an embodiment of the present invention.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
Referring to fig. 1 and 2, the invention provides a die forging device for a U-shaped plate forging based on a straightener, which comprises: the straightening machine comprises a straightening machine body 9 and a straightening machine push head 1 which is in sliding connection with the straightening machine body 9; further comprises: the driving device is used for driving the straightening machine push head 1 and is connected with the first head die holder 2 of the straightening machine push head 1; and a second head die holder 7 disposed opposite to the first head die holder 2 and fixed to the straightener body 9; the die also comprises a U-shaped plate forging die male die 4 which is detachably and fixedly connected with the first head die holder 2; a U-shaped plate forging die female die 5 matched with the U-shaped plate forging die male die 4; the die of the U-shaped plate forging die is detachably fixed on the second head die holder 7.
Preferably, the male die 4 of the U-shaped plate forging die is fixed on the first head die holder 2 through a die clamping mechanism 3.
Preferably, a buffer cushion 8 is arranged between the second head die holder 7 and the straightener body 9.
Preferably, the die 5 of the U-shaped plate forging die is arranged at the end part of the straightener body 9 and is fixed on the second head die holder 7 through a fastening screw 6.
The invention also provides a forming method for realizing die forging of the U-shaped plate forging by adopting static pressure, and the die forging equipment for the plate forging is used for preparing the U-shaped plate forging by utilizing the driving static pressure of the straightener.
Preferably, the method further comprises fixing the blank between the die forging male die 4 of the U-shaped plate type forge piece and the die 5 of the U-shaped plate type forge piece, and pushing the die 4 of the U-shaped plate type forge piece to compress the blank on the die 5 of the U-shaped plate type forge piece.
Preferably, the U-shaped plate forging die is arranged on the straightener body, has a left-right structure and a horizontal pushing forging direction, and is different from the forging of all die forging equipment in the vertical structure and the vertical direction.
Preferably, the method aims at the U-shaped plate forgings with symmetrical and asymmetrical two ends, and the symmetrical or asymmetrical height and size requirements can be achieved by modifying the length of the positioning block in the positioning groove of the die 5 of the U-shaped plate forgings.
Preferably, the method aims at the U-shaped plate forgings with two ends of the U-shape forming a certain angle (preferably 70-90 degrees) with the bottom plate of the product, and the inclination angle of the product can meet the requirement by modifying the angles at two sides of the male die 4 and the female die 5 of the U-shaped plate forgings.
Preferably, the thickness of the U-shaped plate forging piece of the method is 15-25mm, and the total length of the original blank is 180-950mm.
The beneficial effects of the invention are as follows: the static pressure driving force of parallel straightening (moving) of the straightening machine is utilized to improve the static pressure die forging technology of vertical forging forming by utilizing the gravity of a hammer head of an original free forging hammer into the static pressure die forging of horizontal propelling on the existing straightening machine, so that the safety and environmental protection performance in the forging process are greatly improved, the defect of larger thickness errors of plate parts caused by different manual hammer opening forces on the original hammer is restrained, blank making is carried out on the original electro-hydraulic hammer, the larger the manual hammer opening pressing amplitude is, the larger the stroke transmitted to the hammer through the lever is, the larger the forging gravity is, the larger the plate parts are deformed, and the thickness is thinned. Therefore, the difference of the opening hammer force can lead to the thickness difference of the plate parts, the static pressure of the straightening machine is utilized for mechanical blank making, the thickness error of the plate parts is ensured, the overall thickness uniformity of the forge piece is greatly improved, and the production efficiency is further improved while the quality of the U-shaped plate die forge piece is further ensured.
In order to facilitate understanding of the method for realizing die forging forming of the U-shaped plate forging by adopting static pressure provided by the embodiment of the invention, the method is described in detail below with reference to specific embodiments.
With continued reference to fig. 1 and 2, the present invention provides an apparatus for implementing die forging of a U-shaped plate forging using static pressure, the plate forging apparatus includes a straightener body 9, and a straightener push head 1 is connected to the straightener body, and the straightener push head 1 can move horizontally relative to the straightener body. When the horizontal movement is specifically realized, the horizontal movement is realized through a driving device of the straightening machine body 9, the driving device is a hydraulic cylinder, and the straightening machine push head 1 is driven to horizontally move relative to the straightening machine body through the expansion and contraction of a piston rod of the hydraulic cylinder. In addition, when the head is specifically arranged, the head comprises a first head die holder 2 and a second head die holder 7 which are oppositely arranged; and the first head die holder 2 and the second head die holder 7 are universal die holders; wherein the first head die holder 2 is fitted to the straightener push head 1 and the second head die holder 7 is fitted to the straightener body 9, more specifically the second head die holder 7 is fitted to the end of the straightener body 9 such that the first head die holder 2 is opposite the second head die holder 7. And when the second head die holder 7 is specifically arranged, a buffer pad 8 is arranged between the second head die holder 7 and the straightener body 9.
In addition, the first head die holder 2 and the second head die holder 7 can be assembled with different dies, and in the embodiment of the invention, the male die 4 of the U-shaped plate forging die is detachably and fixedly connected to the first head die holder 2; and the second head die holder 7 is detachably connected with a U-shaped plate forging die 5. The U-shaped plate forging die male die 4 and the U-shaped plate forging die male die 5 are matched to press-forge a blank to be forged.
When the U-shaped plate forging die punch 4 is fixed specifically, as shown in fig. 1 and 2, the U-shaped plate forging die punch 4 is fixed on the first head die holder 2 through a die clamping mechanism 3. Specifically, the die clamping mechanism 3 is fixedly connected with the first head die holder 2 through pins, and the die male die 4 of the U-shaped plate forging is clamped and fixed through the die clamping mechanism 3. The mold clamping mechanism 3 is a mold clamping mechanism in the prior art, and will not be described here.
When the die 5 for the U-shaped plate forging is specifically provided, as shown in fig. 1 and 2, the die 5 for the U-shaped plate forging is fixed on the second head die holder 7 by the fastening screw 6. The fastening screw 6 is a fastening screw of the prior art, and will not be described here.
In order to facilitate understanding of the plate forging device provided by the embodiment of the invention to prepare a plate forging, the embodiment of the invention also provides a method for realizing die forging forming of the U-shaped plate forging by adopting static pressure of a straightener.
The preparation method comprises the following steps:
step 1: the die forging die 4 and the die 5 of the U-shaped plate type forge piece based on the straightener are assembled on the straightener body 9;
step 2: preheating the assembled die for 0.5-3 hours.
Step 3: after preheating to the temperature, placing the heated plate parts into a U-shaped plate forging die cavity 5;
step 4: operating the straightener body 9, pushing the male die 4 of the U-shaped plate type forge piece die into the die cavity of the female die 5 of the U-shaped plate type forge piece die along with the horizontal movement of the push head 1, so that a product is die-forged and formed;
step 5: operating the straightener, and withdrawing the male die 4 of the U-shaped plate forging die from the die cavity of the female die 5 of the U-shaped plate forging die;
step 6: taking the product out of the die cavity and air-cooling.
As can be seen from the above description, in the embodiment of the present invention, the production cost is reduced by using the waste straightener device; the static pressure driving force of parallel straightening (moving) of the straightening machine is utilized to improve the static pressure die forging technology of vertical forging forming by utilizing the gravity of a hammer head of an original free forging hammer into the static pressure die forging of horizontal propelling on the existing straightening machine, so that the safety and environmental protection performance in the forging process are greatly improved, the defect of larger thickness errors of plate parts caused by different manual hammer opening forces on the original hammer is restrained, blank making is carried out on the original electro-hydraulic hammer, the larger the manual hammer opening pressing amplitude is, the larger the stroke transmitted to the hammer through the lever is, the larger the forging gravity is, the larger the plate parts are deformed, and the thickness is thinned. Therefore, the difference of the opening hammer force can lead to the thickness difference of the plate parts, the static pressure of the straightening machine is utilized for mechanical blank making, the thickness error of the plate parts is ensured, the overall thickness uniformity of the forge piece is greatly improved, and the production efficiency is further improved while the quality of the U-shaped plate die forge piece is further ensured.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. U style of calligraphy board class forging die forging equipment based on straightener, its characterized in that includes: the straightening machine comprises a straightening machine body and a straightening machine push head which is in sliding connection with the straightening machine body; further comprises: the driving device is used for driving the push head of the straightening machine by static pressure and is connected with the first head die holder of the push head of the straightening machine; and a second head die holder arranged opposite to the first head die holder and fixed on the straightener body; the male die of the U-shaped plate forging die is detachably and fixedly connected with the first head die holder; a U-shaped plate forging die female die matched with the U-shaped plate forging die male die; the die of the U-shaped plate forging die is detachably fixed on the second head die holder, blanks are fixed between the punch of the U-shaped plate forging die and the die of the U-shaped plate forging die, the punch of the U-shaped plate forging die is pushed to compress the blanks on the die of the U-shaped plate forging die, the die of the U-shaped plate forging die is arranged on the straightening machine body, the die of the U-shaped plate forging die is of a left-right structure and horizontally pushed in the forging direction, the die of the U-shaped plate forging die is different from the upper-lower structure and vertically forged in all die forging equipment, the length of a positioning block in a positioning groove of the die of the U-shaped plate forging die is modified for symmetrical or asymmetrical U-shaped plate forging at two ends, the U-shaped plate forging die with a certain angle relative to a bottom plate of a product is achieved, and the angle of the punch of the U-shaped plate forging die is modified for two sides of the U-shaped plate forging die, so that the product inclination angle meets the requirement.
2. The U-shaped plate forging apparatus as recited in claim 1, wherein the U-shaped plate forging die male die is fixed to the first head die holder by a die clamping mechanism.
3. The U-shaped plate forging die forging apparatus as recited in claim 1, wherein the U-shaped plate forging die is fixed to the second head die holder by fastening screws.
4. The U-shaped plate forging die forging apparatus as recited in claim 1, wherein a cushion pad is provided between the second head die holder and the straightener body.
5. The static pressure die forging forming method for the U-shaped plate forgings based on the straightener is characterized in that the die forging equipment for the U-shaped plate forgings is adopted, and the driving static pressure of the straightener body is utilized to prepare the U-shaped plate forgings.
6. The static pressure die forging forming method of the U-shaped plate type forge piece based on the straightener, which is disclosed in claim 5, wherein the thickness of the U-shaped plate type forge piece is 10-25mm, and the total length of the original blank is 180-950mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910319397.3A CN109909414B (en) | 2019-04-19 | 2019-04-19 | Die forging equipment for U-shaped plate forgings and static pressure die forging forming method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910319397.3A CN109909414B (en) | 2019-04-19 | 2019-04-19 | Die forging equipment for U-shaped plate forgings and static pressure die forging forming method |
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| CN109909414A CN109909414A (en) | 2019-06-21 |
| CN109909414B true CN109909414B (en) | 2024-02-27 |
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| CN112692212B (en) * | 2021-01-27 | 2022-07-12 | 中国第一重型机械股份公司 | Die forging equipment and hammer head switching method |
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| CN209830154U (en) * | 2019-04-19 | 2019-12-24 | 株洲中车天力锻业有限公司 | Die forging equipment for U-shaped plate type forge pieces |
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| CN101214526A (en) * | 2008-01-04 | 2008-07-09 | 华中科技大学 | 7A04 aluminum alloy casing body parts multi-functional die forging technique and mold |
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