CN115570095A - Material returning mechanism of forging press and machining method of forging press with material returning mechanism - Google Patents
Material returning mechanism of forging press and machining method of forging press with material returning mechanism Download PDFInfo
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- CN115570095A CN115570095A CN202211264121.8A CN202211264121A CN115570095A CN 115570095 A CN115570095 A CN 115570095A CN 202211264121 A CN202211264121 A CN 202211264121A CN 115570095 A CN115570095 A CN 115570095A
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- pressing plate
- movable pressing
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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
- B21J13/08—Accessories for handling work or tools
- B21J13/14—Ejecting devices
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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
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention relates to the technical field of forging presses, and discloses a material returning mechanism of a forging press, which comprises a workbench, a lower die, a lower active pressure plate and a lifting device, wherein the workbench is provided with a mounting hole, the lower active pressure plate is fixed on the workbench and inserted in the mounting hole, the lower active pressure plate is provided with a die cavity in sliding fit with the lower die, the lower die is fixed on the lifting device, the workbench is connected with the output end of the lifting device, and the lifting device drives the workbench to move up and down relative to the lower die. The invention adopts the pull-down material returning, and has the advantages of simple structure and high strength and rigidity of the structure. Meanwhile, the invention also provides a processing step of the forging press with the mechanism, so that the possibility of deformation of a workpiece in the processing process is reduced.
Description
Technical Field
The invention relates to the technical field of forging equipment, in particular to a material returning mechanism of a forging press and a machining method of the forging press with the material returning mechanism.
Background
In recent years, LED lamps and high-power semiconductor modules (IGBT modules) have been widely used in the fields of lamps and new energy. However, electronic components, chips and the like have strict requirements on the working temperature, and forged heat sinks (aluminum and copper) are distinguished in the field due to good heat absorption and heat dissipation performance. The production of forging and pressing radiating fins needs a forging press (hydraulic press) with thousands of tons to ten thousand tons, and the steel wire winding hydraulic press can be widely applied to the industries due to the small working table, convenient operation, cost advantage and the like, but due to the structural limitation, a mold closing cylinder and a material returning cylinder required by the production process of the radiating fins always have larger defects, and the quality of the radiating fin products and the service life of a mold are greatly influenced.
As shown in fig. 1, the existing forging press is generally provided with a plurality of mold closing cylinders, the plurality of mold closing cylinders are uniformly distributed on the periphery of an oil cylinder base (processed on the oil cylinder base), are connected with a mold closing ring through screws, and are provided with ejector rods, the ejector rods push against a movable pressing plate of a mold, the movable pressing plate is matched with a lower mold, and a workpiece is molded: along with the descending of the main cylinder, the upper template and the movable pressing plate are contacted to form a closed die cavity, the main cylinder continues to carry out descending pressing, the upper template presses the movable pressing plate to synchronously and passively descend (the die closing pressure is controlled by the die closing cylinder overflow valve), the material deforms and flows in the closed die cavity, and the material only can flow upwards to enter the upper die core due to the fact that the periphery of the die cavity is closed, so that the heat dissipation pins or the fins are formed. And for the workpiece with the edge, controlling the excessive material on the edge to flow between the upper die plate and the movable press plate by adjusting the die closing force. The material returning cylinder is arranged at the center of the oil cylinder base (processed on the oil cylinder base), after the workpiece is formed, the main oil cylinder moves upwards, the upper die and the lower die are separated, the material returning cylinder is ejected upwards, and the workpiece is separated from the die. The above design has the following problem (1) and a complicated structure. The mold closing and material returning cylinder parts have 5 oil cylinders (4 mold closing cylinders) in total, the number of the oil cylinders is as high as 29, and particularly, 5 oil cylinder holes are machined on an oil cylinder seat, so that the machining is difficult, the period is long, and the cost is high; (2) The rigidity is poor, process 5 cylinder holes on the hydro-cylinder seat, the hydro-cylinder seat is dug empty by seriously, and especially central point sets up material returned jar, and processing work piece size majority is less than the diameter of hydro-cylinder, and several thousand tons of suppression power act on the workstation through lower mould (lower mould size is equivalent with the work piece size), and pass on the hydro-cylinder seat again, the effort is big, the area of action is little, and the workstation center back is unsettled, and it is big to cause its whole deflection, and the rigidity is poor, and the consequence that leads to is: the processed workpiece is easy to bend and can not meet the quality requirement; the lower die (high hardness) is subjected to a large bending force, is easy to jump and crack and has short service life; the sealing element of the oil cylinder is easy to damage, and the later maintenance cost is high; and (3) the workpiece is easy to deform during material ejection. When the main cylinder moves upwards, the upper die is pulled out, the workpiece is clamped, and the workpiece is left in the lower die. And after the upper die is pulled out, the material returning cylinder is ejected upwards, and the workpiece is taken out. Because the gap is uneven, when the workpiece is ejected, the stress on the periphery is different, the workpiece (the bottom of the workpiece is only a few millimeters thick) deforms, and the quality requirement cannot be met.
Disclosure of Invention
The invention aims to provide a material returning mechanism of a pull-down material returning forging press, which has a simple structure and high strength and rigidity, and a machining method of the forging press with the material returning mechanism.
In order to achieve the purpose, the invention provides a material returning mechanism of a forging press, which comprises a workbench, a lower die, a lower movable platen and a lifting device, wherein the workbench is provided with a mounting hole, the lower movable platen is fixed on the workbench and is inserted into the mounting hole, the lower movable platen is provided with a die cavity in sliding fit with the lower die, the lower die is fixed on the lifting device, the workbench is connected with the output end of the lifting device, and the lifting device drives the workbench to move up and down relative to the lower die.
As a preferable scheme of the invention, the material returning mechanism further comprises a base, the lifting device is a hydraulic cylinder, the hydraulic cylinder comprises a cylinder body and a plunger, the cylinder body is slidably sleeved on the plunger, the plunger is fixed on the base, the lower die is fixed on the top of the plunger, and the workbench is fixed on the top of the cylinder body.
As a preferable scheme of the invention, the base is provided with a guide post, the side part of the cylinder body is provided with a guide seat, and the guide seat is slidably sleeved on the guide post.
In a preferred embodiment of the present invention, the cylinder body has a detection block at a side thereof, and the base has a detection device for detecting and identifying a lifting position of the detection block.
As a preferable scheme of the invention, the top of the plunger is provided with a die base plate, and the lower die is fixed on the die base plate.
As a preferable scheme of the invention, an upper oil cavity and a lower oil cavity which are separated are formed between the plunger and the cylinder body, the cylinder body is provided with a first oil port communicated with the upper oil cavity and a second oil cavity communicated with the lower oil cavity, and the first oil port is connected with an overflow valve.
As a preferable scheme of the invention, the top of the cylinder body is provided with a connecting flange, and the workbench is arranged on the top of the connecting flange and fixedly connected with the connecting flange.
The invention also provides a processing method of the forging press, the forging press comprises an upper movable pressing plate, an upper die, a driving device for driving the upper movable pressing plate to move up and down, and a material returning mechanism of the forging press, the material returning mechanism of the forging press comprises a workbench, a lower die, a lower movable pressing plate and a lifting device, the workbench is provided with a mounting hole, the lower movable pressing plate is fixed on the workbench and inserted into the mounting hole, the lower movable pressing plate is provided with a die cavity in sliding fit with the lower die, the lower die is fixed on the lifting device, the workbench is connected with the output end of the lifting device, the lifting device drives the workbench to move up and down relative to the lower die, the upper movable pressing plate is arranged above the lower movable pressing plate, the upper die is embedded at the bottom of the lower movable pressing plate, and the position of the upper die corresponds to the position of the lower die;
the processing method of the forging press comprises the following steps:
s1: discharging, namely placing a workpiece blank on the lower die;
s2: closing the die, wherein the driving device drives the upper movable pressing plate to descend so that the upper movable pressing plate is attached to the lower movable pressing plate;
s3: pressing, wherein the upper movable pressing plate keeps pressing the lower movable pressing plate, and the upper die and the lower die are matched to press and form the workpiece blank;
s4: opening the die, wherein the driving device drives the upper movable pressing plate to ascend and separate from the lower movable pressing plate;
s5: and returning the material, wherein the lifting device drives the lower movable pressing plate to descend, so that the top surface of the lower movable pressing plate is lower than the top surface of the lower die.
Compared with the prior art, the material returning mechanism of the forging press and the processing method of the forging press with the material returning mechanism have the advantages that:
1. when the workpiece is pressed, the lower movable pressing plate and the lower die are supported by the lifting device, so that a die closing cylinder for supporting the lower movable pressing plate is not required, the structure of the material returning mechanism is simplified, the manufacturing cost is reduced, the phenomenon that the rigidity of the whole structure is poor due to the fact that the die closing cylinder is arranged is avoided, the service life of the die is prolonged, and the deformation of the workpiece is reduced.
2. During the pressing and forming of a workpiece, the upper movable pressing plate inevitably generates burrs, during the material returning process, the lifting device drives the lower movable pressing plate to descend, so that the top surface of the lower movable pressing plate is lower than the top surface of the lower die, the formed workpiece is exposed, so that the workpiece can be conveniently taken out, namely the material returning in a pull-down mode.
Drawings
FIG. 1 is a block diagram of a material return mechanism of a prior art forging press;
FIG. 2 is a block diagram of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a schematic illustration of the processing steps of a forging press provided by the present invention;
in the figure, 1, a workbench; 11. mounting holes; 2. a lower die; 3. a lower movable platen; 31. a mold cavity; 4. a lifting device; 41. a cylinder body; 411. a first oil port; 412. a second oil port; 413. a guide seat; 414. a detection block; 415. a connecting flange; 42. a plunger; 421. a die backing plate; 43. an upper oil chamber; 44. a lower oil chamber; 5. a base; 51. a guide post; 52. a detection device; 6. an upper movable pressing plate; 7. and (5) an upper die.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "central", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., used herein are used in the orientation or positional relationship indicated in the drawings, which are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 2-3, the material returning mechanism of the forging press according to the preferred embodiment of the present invention includes a workbench 1, a lower die 2, a lower movable platen 3 and a lifting device 4, wherein the workbench 1 is provided with a mounting hole 11, the lower movable platen 3 is fixed on the workbench 1, the lower movable platen 3 is inserted into the mounting hole 11, the lower movable platen 3 is provided with a die cavity 31 in sliding fit with the lower die 2, the lower die 2 is fixed on the lifting device 4, the workbench 1 is connected with an output end of the lifting device 4, and the lifting device 4 drives the workbench 1 to move up and down relative to the lower die 2.
The working principle of the embodiment is as follows: when a workpiece is pressed and formed, the upper movable pressing plate inevitably generates burrs, when the workpiece is returned, the lifting device 4 drives the lower movable pressing plate 3 to descend, so that the top surface of the lower movable pressing plate 3 is lower than that of the lower die 2, the formed workpiece is exposed, and the workpiece is conveniently taken out, namely, the workpiece is returned in a pull-down mode, in the whole returning process, the workpiece is in a fixed state, only the burrs on the upper movable pressing plate descend along with the upper movable pressing plate to be separated from the workpiece, compared with the existing push-out type returning (the lower die 2 is communicated with the workpiece to be ejected), the workpiece is not relatively moved when being exposed, and the possibility that the workpiece is deformed due to the separation of the burrs and the workpiece is reduced due to the supporting and fixing of the lower die 2.
Illustratively, the mechanism further includes a base 5, the lifting device 4 is a hydraulic cylinder, the hydraulic cylinder includes a cylinder body 41 and a plunger 42, the cylinder body 41 is slidably sleeved on the plunger 42, the plunger 42 is fixed on the base 5, the lower die 2 is fixed on the top of the plunger 42, the table 1 is fixed on the top of the cylinder body 41, because the plunger 42 is fixed with the base 5 and the lower die 2 is fixed with the plunger 42, when the hydraulic cylinder is actuated, the cylinder body 41 will move up and down relative to the base 5, so as to drive the table 1 and the lower active platen 3 to move up and down relative to the lower die 2, i.e. the cylinder body 41 is an output end of the lifting device 4, it can be understood that the lifting device 4 is a hydraulic cylinder as one of the embodiments of the present invention, and in other embodiments, the lifting device 4 can be driven by hydraulic pressure, a pull rod, a push rod, a nitrogen spring, and the like.
Illustratively, the base 5 is provided with guide posts 51, the side portion of the cylinder body 41 is provided with guide seats 413, the guide seats 413 are slidably sleeved on the guide posts 51, and the guide seats 413 are matched with the guide posts 51 to play a role in limiting the direction of the lifting movement of the cylinder body 41, so as to prevent the cylinder body 41 from being biased during the lifting movement, the number of the guide seats 413 can be multiple, for example, in the present embodiment, four guide seats 413 are provided, the four guide seats 413 are uniformly distributed around the axis of the cylinder body 41, the number of the guide posts 51 is the same as the number of the guide seats 413, and the guide posts 51 are connected with the guide seats 413 in a one-to-one correspondence manner.
Illustratively, the side of the cylinder 41 is provided with a detecting block 414, the base 5 is provided with a detecting device 52 for detecting and identifying the ascending and descending position of the detecting block 414, so as to detect and determine the ascending and descending position of the cylinder 41, and the detecting device 52 is a strip-shaped position sensor, such as an electronic ruler.
Exemplarily, the top of the plunger 42 is provided with a die backing plate 421, the lower die 2 is fixed on the die backing plate 421, the die backing plate 421 is made of a high-hardness material, thousands of tons of pressing force act on the die backing plate 421 (high hardness) through the workpiece and the lower die 2, and then is transmitted to the plunger 42 and the base 5, the whole transmission chain is a solid body, the material and the heat treatment are well performed, so that the strength and the rigidity can be well obtained, the bending deformation of the workpiece in the pressing process is reduced to the minimum, and meanwhile, the service life of the die is greatly prolonged.
Illustratively, an upper oil chamber 43 and a lower oil chamber 44 are formed between the plunger 42 and the cylinder body 41, the cylinder body 41 is provided with a first oil port 411 communicated with the upper oil chamber 43 and a second oil chamber communicated with the lower oil chamber 44, because the plunger 42 is fixed to the base 5, when oil is supplied to the upper oil chamber 43 through the first oil port 411, the cylinder body 41 moves up, hydraulic oil in the second oil chamber is discharged from the first oil port 412, and when oil is supplied to the lower oil chamber 44 through the first oil port 412, the cylinder body 41 moves down, hydraulic oil in the first oil chamber flows out from the first oil port 411, so as to realize the lifting movement of the cylinder body 41, the first oil port 411 is connected with a relief valve, when the upper movable platen presses the lower movable platen 3 during the pressing of a workpiece, the lower movable platen 3 is passively lowered for a certain distance, and hydraulic oil in the first oil chamber is transferred to the first oil port 411, so that the pressure of the upper movable platen on the lower movable platen 3 (i.e., the mold closing pressure) can be controlled by the arrangement.
Exemplarily, the top of the cylinder 41 is provided with a connecting flange 415, the workbench 1 is arranged on the top of the connecting flange 415 and is fixedly connected with the connecting flange 415, so as to facilitate the fixed installation of the workbench 1, and simultaneously, the workbench can also play a role of sealing the top of the cylinder 41, and similarly, the bottom of the cylinder 41 is provided with a flange for sealing the bottom of the cylinder 41.
As shown in fig. 4, the invention also provides a processing method of a forging press, the forging press comprises an upper movable platen 6, an upper die 7, a driving device for driving the upper movable platen 6 to move up and down, and a material returning mechanism of the forging press, wherein the upper movable platen 6 is arranged above the lower movable platen 3, the upper die 7 is embedded at the bottom of the lower movable platen 3, and the position of the upper die 7 corresponds to the position of the lower die 2; the processing method of the forging press comprises the following steps:
s1: placing a workpiece blank on the lower die 2, wherein the top surface of the lower movable pressing plate 3 is higher than the top surface of the lower die 2, so that a die cavity 31 capable of completely placing the workpiece blank exists at the top of the lower die 2;
s2: closing the die, and driving the upper movable platen 6 to descend by the driving device so that the upper movable platen 6 is attached to the lower movable platen 3;
s3: pressing, wherein the upper movable pressing plate 6 keeps pressing the lower movable pressing plate 3 downwards, the upper die 7 is matched with the lower die 2 to press and form a workpiece blank, the driving device drives the upper movable pressing plate 6 to continuously descend so as to drive the lower movable plate to move downwards for a certain distance, the upper die 7 presses the workpiece blank downwards, the workpiece blank is pressed and formed under the matching of the upper die 7 and the lower die 2, and at the moment, the upper movable pressing plate 6 inevitably generates flash (redundant materials flow into a gap between the upper movable pressing plate 6 and the lower movable pressing plate 3);
s4: opening the mold, wherein the driving device drives the upper movable pressing plate 6 to ascend and separate from the lower movable pressing plate 3;
s5: and returning materials, wherein the lifting device 4 drives the lower movable platen 3 to descend, so that the top surface of the lower movable platen 3 is lower than that of the lower die 2, the formed workpiece is exposed, the workpiece can be taken out conveniently, and then the lifting device 4 drives the lower movable platen 3 to return to the position in the S1, so that one working cycle is completed.
The processing method of the forging press has the advantages that:
1. when a workpiece is pressed, the lower movable platen 3 and the lower die 2 are supported by the lifting device 4 (which is equivalent to the combination of a die closing cylinder and a material returning cylinder in the prior art), so that the die closing cylinder for supporting the lower movable platen 3 is not required to be arranged, the structure of the material returning mechanism is simplified, the manufacturing cost is reduced, the phenomenon of poor rigidity of the whole structure caused by the arrangement of the die closing cylinder is avoided, the service life of the die is prolonged, and the deformation of the workpiece is reduced;
2. when a workpiece is pressed and formed, burrs are inevitably generated on the upper movable pressing plate 6, when the workpiece is returned, the lifting device 4 drives the lower movable pressing plate 3 to descend, so that the top surface of the lower movable pressing plate 3 is lower than that of the lower die 2, the formed workpiece is exposed, and the workpiece is taken out conveniently, namely, the formed workpiece is called as a pull-down type return material, in the whole return material process, the workpiece is in a fixed state, only the burrs on the upper movable pressing plate 6 descend along with the upper movable pressing plate 6 to be separated from the workpiece, compared with the existing push-out type return material (the workpiece is pushed out by connecting the lower die 2), the workpiece is not relatively moved when being exposed and fixed due to the support of the lower die 2, and the possibility that the workpiece is deformed due to the separation of the burrs and the workpiece is reduced.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides a material returned mechanism of forging press which characterized in that: the device comprises a workbench, a lower die, a lower active platen and a lifting device, wherein the workbench is provided with a mounting hole, the lower active platen is fixed on the workbench and inserted in the mounting hole, the lower active platen is provided with a die cavity in sliding fit with the lower die, the lower die is fixed on the lifting device, the workbench is connected with the output end of the lifting device, and the lifting device drives the workbench to move up and down relative to the lower die.
2. The material returning mechanism of a forging press as recited in claim 1, characterized in that: the lifting device is a hydraulic cylinder, the hydraulic cylinder comprises a cylinder body and a plunger, the cylinder body is slidably sleeved on the plunger, the plunger is fixed on the base, the lower die is fixed at the top of the plunger, and the workbench is fixed at the top of the cylinder body.
3. The material return mechanism of a forging press according to claim 2, wherein: the base is provided with a guide post, the side part of the cylinder body is provided with a guide seat, and the guide seat is slidably sleeved on the guide post.
4. The material return mechanism of a forging press according to claim 2, wherein: the lateral part of cylinder body is equipped with detects the piece, be equipped with on the base and be used for detecting the discernment detect the detection device of the lift position of piece.
5. The material return mechanism of a forging press according to claim 2, wherein: and a die base plate is arranged at the top of the plunger, and the lower die is fixed on the die base plate.
6. The material return mechanism of a forging press according to claim 2, wherein: the plunger and the cylinder body form an upper oil cavity and a lower oil cavity which are separated, the cylinder body is provided with a first oil port communicated with the upper oil cavity and a second oil cavity communicated with the lower oil cavity, and the first oil port is connected with an overflow valve.
7. The material return mechanism of a forging press according to claim 2, wherein: the top of cylinder body is equipped with flange, the workstation is located flange's top and with flange fixed connection.
8. The processing method of the forging press is characterized in that: the forging press comprises an upper movable pressing plate, an upper die, a driving device for driving the upper movable pressing plate to move up and down, and a material returning mechanism of the forging press as claimed in any one of claims 1 to 7, wherein the material returning mechanism of the forging press comprises a workbench, a lower die, a lower movable pressing plate and a lifting device, the workbench is provided with a mounting hole, the lower movable pressing plate is fixed on the workbench and inserted into the mounting hole, the lower movable pressing plate is provided with a die cavity in sliding fit with the lower die, the lower die is fixed on the lifting device, the workbench is connected with an output end of the lifting device, the lifting device drives the workbench to move up and down relative to the lower die, the upper movable pressing plate is arranged above the lower movable pressing plate, the upper die is embedded at the bottom of the lower movable pressing plate, and the position of the upper die corresponds to the position of the lower die;
the processing method of the forging press comprises the following steps:
s1: discharging, namely placing a workpiece blank on the lower die;
s2: closing the die, wherein the driving device drives the upper movable pressing plate to descend so that the upper movable pressing plate is attached to the lower movable pressing plate;
s3: pressing, wherein the upper movable pressing plate keeps pressing the lower movable pressing plate, and the upper die and the lower die are matched to press and form the workpiece blank;
s4: opening the die, wherein the driving device drives the upper movable pressing plate to ascend and separate from the lower movable pressing plate;
s5: and returning the material, wherein the lifting device drives the lower movable pressing plate to descend, so that the top surface of the lower movable pressing plate is lower than the top surface of the lower die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211264121.8A CN115570095B (en) | 2022-10-13 | 2022-10-13 | Material returning mechanism of forging press and machining method of forging press with material returning mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211264121.8A CN115570095B (en) | 2022-10-13 | 2022-10-13 | Material returning mechanism of forging press and machining method of forging press with material returning mechanism |
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| CN115570095A true CN115570095A (en) | 2023-01-06 |
| CN115570095B CN115570095B (en) | 2023-07-04 |
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| CN208245477U (en) * | 2018-05-18 | 2018-12-18 | 东莞市一辉油压机械有限公司 | A kind of cold extrusion shaped compound servo hydraulic press |
| CN111959021A (en) * | 2020-08-17 | 2020-11-20 | 南通中液液压机有限公司 | Multi-station salt core product full-automatic dry powder hydraulic press |
| CN113020469A (en) * | 2021-03-31 | 2021-06-25 | 常州博赢精密模具科技股份有限公司 | Secondary ejection structure die for automobile trunk cover |
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2022
- 2022-10-13 CN CN202211264121.8A patent/CN115570095B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2467301Y (en) * | 2001-03-22 | 2001-12-26 | 营口青花耐火材料股份有限公司 | Floating work table on frictional brick press |
| CN101758146A (en) * | 2009-11-03 | 2010-06-30 | 天津市天锻压力机有限公司 | Demoulding and material receiving device for titanium electrode product |
| CN101758101A (en) * | 2009-11-19 | 2010-06-30 | 天津市天锻压力机有限公司 | High-precision electrode extrusion forming hydrostatic press |
| JP2015058464A (en) * | 2013-09-20 | 2015-03-30 | 昭和電工株式会社 | Forging apparatus |
| CN208245477U (en) * | 2018-05-18 | 2018-12-18 | 东莞市一辉油压机械有限公司 | A kind of cold extrusion shaped compound servo hydraulic press |
| CN111959021A (en) * | 2020-08-17 | 2020-11-20 | 南通中液液压机有限公司 | Multi-station salt core product full-automatic dry powder hydraulic press |
| CN113020469A (en) * | 2021-03-31 | 2021-06-25 | 常州博赢精密模具科技股份有限公司 | Secondary ejection structure die for automobile trunk cover |
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| CN115570095B (en) | 2023-07-04 |
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