CN114130940A

CN114130940A - Forging and pressing strengthening process for rare earth magnesium alloy workpiece

Info

Publication number: CN114130940A
Application number: CN202111198152.3A
Authority: CN
Inventors: 戴颖航
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-03-04

Abstract

The invention discloses a forging and pressing strengthening process of a rare earth magnesium alloy workpiece, which belongs to the field of forging and pressing strengthening of workpieces, and the scheme can realize that when the workpiece is forged and pressed, a guide sleeve drives a piston to slide along a gas collection cavity through a connecting component, so that an air inlet groove is driven to pump outside air into the gas collection cavity and exhaust the air to an air blowing port along an air exhaust groove, so as to realize the blowing off of oxide skin on a placing table, keep the blank surface of the workpiece to be smooth after each forging and pressing, and is difficult to press the oxide skin into the surface of a forged piece during secondary and multiple forging and pressing so as to cause surface depression and influence dimensional precision, thereby reducing the blowing step of the oxide skin by using an air blowing gun by workers, reducing labor cost, improving the quality requirement of the workpiece during forging and pressing, and simultaneously realizing the continuous unidirectional rotation of the placing table through the repeated forging and pressing of a forging press during the forging and pressing work so as to improve the quality and efficiency of the workpiece, and the manual operation is not needed, and the working efficiency of the forging and pressing of the workpiece is improved.

Description

Forging and pressing strengthening process for rare earth magnesium alloy workpiece

Technical Field

The invention relates to the field of workpiece forging and strengthening, in particular to a forging and strengthening process of a rare earth magnesium alloy workpiece.

Background

Forging is a combination of forging and stamping, and is a forming method for obtaining a product with a required shape and size by applying pressure to a blank by using a hammer head, an anvil block and a punch of a forging and stamping machine or through a die to generate plastic deformation, wherein in the forging process, the blank is obviously plastically deformed and has a large amount of plastic flow, in the stamping process, the blank is mainly formed by changing the spatial position of each part area, and the plastic flow with a large distance does not occur in the blank, but the forging and stamping are mainly used for processing metal products and can also be used for processing certain non-metals, such as the formation of engineering plastics, rubber, ceramic blanks, brick blanks and composite materials.

In the current procedure of forging and pressing workpieces, when a forging press forges and presses the workpieces, the high temperature of the workpiece surface and the oxygen in the air are oxidized to generate a large amount of oxide skin on the surface, and the oxide scale is separated from the surface of the workpiece and falls on the forging platform after once forging, and the oxide scale can be forged into the workpiece when forging again, thereby reducing the surface quality of the forged piece, requiring the worker to use the air blow gun to forge and press once for air blowing, increasing the work load of the worker and simultaneously reducing the work efficiency, meanwhile, after forging and pressing once, workers may need to use the hook claws or other tools to adjust the angle of the forged piece, so that the working efficiency of the forged piece is reduced, and simultaneously due to the high temperature of the forged piece, still possess certain danger to the staff, the inaccurate of angle modulation still needs forging and pressing many times to adjust occasionally, greatly reduced work efficiency.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a forging and pressing strengthening process for a rare earth magnesium alloy workpiece, which can realize that when the workpiece is forged and pressed, a guide sleeve drives a piston to slide along a gas collection cavity through a connecting component, so that an air inlet groove is driven to pump outside air into the gas collection cavity and exhaust the air into an air blowing port along an air exhaust groove, so that oxide skin on a placing table is blown off, the blank surface of the workpiece after each forging and pressing is kept smooth, the oxide skin is not easy to press into the surface of a forged piece during secondary and multiple forging and pressing, surface depression and dimensional accuracy are caused, the blowing step of the oxide skin by a worker using an air blowing gun is avoided, the labor cost is reduced, the quality requirement of the workpiece during forging and pressing is improved, meanwhile, in the forging and pressing process, a second guide sleeve drives a rack plate to move downwards along a guide groove, so that the rack plate can rotate through a rack plate, one-way bearing is in free state this moment, so that the transmission shaft is in quiescent condition, and when forging press completion forging and pressing shifts up, the second guide pin bushing drives the rack plate and shifts up, and then can drive the gear and carry out reverse rotation, one-way bearing is in the interlock state this moment, so that the transmission shaft rotates, and then place the platform through the pivot drive and rotate certain angle, repeated forging and pressing through the forging press, can realize placing the continuous one-way rotation of platform, in order to improve the forging and pressing quality and the efficiency of work piece, and need not manual operation, work efficiency when improving the work piece forging and pressing.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A forging and pressing strengthening process for a rare earth magnesium alloy workpiece comprises the following steps:

s1, keeping the temperature of the blank at 500 ℃ for 1h, and then placing the blank under a forging device for multi-directional forging and cogging;

s2, preserving heat of the blank obtained in the S1 for 2 hours at 420 ℃, and simultaneously carrying out multi-directional forging and pressing again;

s3, carrying out heat preservation for 1h at 300 ℃ on the blank obtained in the S2 after multi-directional forging again, and carrying out multi-directional forging again for the third time;

s4, performing heat preservation at 350 ℃ for 0.5h on the blank obtained after the third multidirectional forging in the step S3, and then performing die forging forming;

the forging device in the S1 comprises a forging base, wherein guide pillars are respectively fixed at two ends of the forging base, each guide pillar comprises a first guide pillar and a second guide pillar, a guide sleeve is sleeved at the outer end of each guide pillar and comprises a first guide sleeve and a second guide sleeve, a forging machine is fixedly installed above each guide pillar, the output end of the forging machine is in sliding fit with the corresponding guide pillar through the guide sleeve, a rotary groove is arranged in the middle of the forging base, a placing table is rotatably installed in the rotary groove, an air blowing opening is formed in the side wall of the rotary groove, an air blowing mechanism is arranged on one side inside the forging base, an air collecting cavity is arranged on one side inside the forging base, an air inlet groove and an air outlet groove are respectively formed in two sides of the upper portion of the air collecting cavity, the air inlet groove is communicated with the outside, the air outlet groove is communicated with the air blowing opening, a sliding groove is formed in the first guide pillar, the sliding groove is communicated with the top end of the gas collecting cavity, the side wall of the first guide post is provided with a communicating groove which communicates the sliding hole with the outside, the air blowing mechanism comprises a connecting rod component, a driving mechanism and a piston, the piston is in sliding fit with the gas collecting cavity, when the forging press performs forging and pressing work, the guide sleeve drives the piston to slide along the gas collecting cavity through the connecting component, the air blowing mechanism is matched with one guide sleeve, so that when the forging press performs forging and pressing, the guide sleeve drives the air blowing mechanism to blow air into the air blowing port, the air inlet groove is driven to pump outside air into the gas collecting cavity and discharge the air into the air blowing port along the air outlet groove, the oxide skin on the placing table is blown off, the working step that an operator manually blows the oxide skin is avoided, the working efficiency is improved, and meanwhile, the one-way valves are arranged in the air inlet groove and the air outlet groove, so that the air inlet groove can only carry out air inlet and the air outlet groove can only carry out air outlet.

Furthermore, the connecting rod assembly is arranged in the sliding groove, a connecting plate is arranged at the bottom of the guide sleeve, the connecting plate penetrates through the connecting groove and extends into the sliding hole and is connected with the top end of the connecting rod assembly, the bottom end of the connecting rod assembly is connected with the piston, a first transmission cavity is arranged in the middle of the forging base, a second transmission cavity is arranged at the other side of the forging base, the first transmission cavity is communicated with the second transmission cavity, the first transmission cavity is communicated with the bottom end of the rotating groove, a guide groove is arranged at the upper part of the second transmission cavity and is communicated with the upper end face of the forging base, when the forging machine performs forging work downwards, the second guide sleeve drives the rack plate to move downwards along the guide groove, so that the rack plate can rotate through the rack plate, and the one-way bearing is in a free state, so that the transmission shaft is in quiescent condition, and when forging and pressing was accomplished to the forging press and moved up, the second guide pin bushing drove the rack board and moved up, and then can drive the gear and carry out reverse rotation, one-way bearing was in the interlock state this moment, so that the transmission shaft rotates, and then place the platform through the pivot drive and rotate certain angle, repeated forging and pressing through the forging press, can realize placing the continuous unidirectional rotation of platform, in order to improve the forging and pressing quality and the efficiency of work piece, and need not manual operation.

Further, the driving mechanism comprises a rotating shaft, a driving shaft and a rack plate, the rotating shaft is in running fit with the forging base, one end of the rotating shaft is connected with the middle part of the bottom end of the placing table, the other end of the rotating shaft extends into the first transmission cavity and is provided with a second bevel gear, the transmission shaft is rotatably arranged in the forging base, one end of the transmission shaft extends into the first transmission cavity and is provided with a first bevel gear, the first bevel gear is meshed with the second bevel gear, the other end of the transmission shaft extends into the second transmission cavity and is provided with a gear through a one-way bearing, the driving mechanism is matched with the placing table, so that when the forging press performs forging work, the guide sleeve drives the driving mechanism to drive the placing table to perform one-way rotation, the forging efficiency of workpieces on the placing table can be improved, and the angle of a forging piece can be automatically adjusted, and manual operation is not needed, and the working efficiency is greatly improved.

Furthermore, a rack plate is connected to the bottom end of the second guide sleeve, the connecting rod assembly comprises a first connecting rod and a second connecting rod, the first connecting rod is fixedly connected with the connecting plate, the second connecting rod is fixedly connected with the piston, a sliding groove is formed in the upper portion of the second connecting rod, the lower end of the first connecting rod extends into the sliding groove, and a stop block is arranged at the lower end of the first connecting rod.

Further, still install first spring and second spring in the spout, first spring cup joint in the head rod, the upper end of first spring with the upper end of second connecting rod is connected, the lower extreme of first spring with the dog is connected, the second spring is located the below of head rod, the upper end of second spring with the lower extreme of head rod is connected, the lower extreme of second spring with the bottom of spout is connected, when forging press carries out forging and pressing work, through the spring coupling of head rod and second connecting rod, can realize the flexible start to the piston, and then reduces the damage of rigid start to the piston.

Further, the lower end of the placing table is rotatably connected with a turntable, the outer end of the turntable is fixedly connected with a plurality of limiting blocks which are uniformly distributed, the outer end of the forging and pressing base is provided with an adjusting groove, a fixed shaft is fixedly connected between the inner walls of the adjusting groove, a loop bar is sleeved at the outer end of the fixed shaft, one end of the loop bar close to the turntable is rotatably connected with a pushing block, one end of the loop bar, which is far away from the turntable, is connected with a slide bar in a sliding way, the outer end of the slide bar is fixedly connected with a limit handle, the sleeve rod is slid leftwards and rightwards by pulling out the slide rod, so that the pushing block is butted against the limiting block, the rotary disc is rotated, thereby driving the work piece of placing platform and surface and carrying out the angular adjustment of small-amplitude, work efficiency when improving the work piece forging and pressing has reduced the staff and has used the work step that the work piece angle was adjusted to the iron hook pincers centre gripping work piece, labour saving and time saving more.

Further, place the embedded deformation sacculus that is equipped with a plurality of evenly distributed of platform, the bottom end fixedly connected with fixed block in the deformation sacculus, fixed block upper end fixedly connected with cylinder block, cylinder block upper end fixedly connected with arc extrusion piece places the work piece when placing a surface and forges, places the platform and consequently bears a large amount of pressure, when placing the platform and produce the trend of deformation to the downside after long-time pressurized use, the deformation sacculus leads to receiving pressure at the very first time and produces deformation because of inlaying and establishes in placing a platform inner wall, thereby extrude arc extrusion piece, make the connecting rod of cylinder block carry out the air extrusion to its inside, cause the inside gas compression of cylinder block, the pressure that receives with placing the platform this moment carries out the energy dissipation decompression, reduce the pressure that places the platform and receive, and then improve the life who places platform and its inside spare part.

Further, inlay between the adjustment tank inner wall and establish and install telescopic baffle, telescopic baffle opens the chisel in the outer end and has the catching groove, through setting up telescopic baffle and catching groove, can be when the work piece does not need forging and pressing work, withdraw the slide bar in the loop bar to cause the slide bar at this moment wholly all to be in the adjustment tank, again with telescopic baffle to the left side pulling, carry out complete closure to whole adjustment tank, cause the moisture in dust and the air to be difficult for getting into in the adjustment tank and cause the part to be blockked up by the dust and by the erosion of steam, improve the life and the work efficiency of adjustment tank internals.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

when the scheme can realize workpiece forging, the guide sleeve drives the piston to slide along the gas collection cavity through the connecting assembly, further the guide sleeve can drive the air inlet groove to pump outside air into the gas collection cavity and discharge the outside air to the air blowing port along the air exhaust groove, so that the blowing-off of the oxide skin on the placing table is realized, the blank surface of the workpiece after each forging is kept smooth, the oxide skin is not easy to press into the surface of a forging during secondary and multiple forging, the surface is sunken, the size precision is influenced, the blowing step of the oxide skin by workers using an air blowing gun is avoided, the labor cost is reduced, the quality requirement of workpiece forging is improved, meanwhile, in the forging process, the second guide sleeve drives the rack plate to move downwards along the guide groove, further the rack plate rotates through the rack plate, the one-way bearing is in a free state at the moment, so that the transmission shaft is in a static state, and when the forging press finishes forging and pressing to move upwards, the second guide pin bushing drives the rack plate to move upwards, so that the gear can be driven to rotate reversely, the one-way bearing is in an occluded state at the moment, the transmission shaft is enabled to rotate, the placing table is driven to rotate by the rotating shaft by a certain angle, the continuous one-way rotation of the placing table can be achieved through repeated forging and pressing of the forging press, the forging and pressing quality and efficiency of workpieces are improved, manual operation is not needed, and the working efficiency of the workpieces during forging and pressing is improved.

Drawings

FIG. 1 is a perspective view of the present invention in its entirety;

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 3 is a top perspective view of a section of the park bench of the present invention;

FIG. 4 is a top perspective view of a deformed section of a pusher block in the holding station according to the present invention;

FIG. 5 is a schematic cross-sectional view of the placement table of the present invention;

FIG. 6 is an enlargement of FIG. 5 at B of the present invention;

fig. 7 is a schematic cross-sectional structure diagram of the deformable balloon of the invention.

The reference numbers in the figures illustrate:

1 forging and pressing base, 2 forging and pressing machine, 3 rotary groove, 4 placing table, 13 rotary table, 14 limiting block, 15 adjusting groove, 16 fixing shaft, 17 loop bar, 18 pushing block, 19 sliding bar, 20 limiting handle, 21 deformation saccule, 22 fixing block, 23 cylinder block, 24 arc extrusion block, 26 telescopic baffle, 2601 buckling groove, 27 first guide pillar, 28 connecting plate, 29 sliding hole, 30 first guide sleeve, 31 second guide sleeve, 32 second guide pillar, 33 communicating groove, 34 air inlet groove, 35 rotating shaft, 36 second bevel gear, 37 first transmission cavity, 38 first bevel gear, 39 transmission shaft, 40 air collection cavity, 41 piston, 42 second transmission cavity, 43 gear, 44 one-way bearing, 45 guiding groove, 46 rack plate, 47 air blowing port, 48 air exhausting groove, 50 sliding groove, 51 second connecting rod, 52 first connecting rod, 53 first spring, 54 second spring and 55 stop block.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

and S4, keeping the temperature of the billet obtained after the third multi-directional forging in the step S3 at 350 ℃ for 0.5h, and then carrying out die forging forming.

Referring to fig. 1 to 7, the forging apparatus in S1 includes a forging base 1, guide posts are respectively fixed at two ends of the forging base 1, the guide posts include a first guide post 27 and a second guide post 32, a guide sleeve is sleeved at an outer end of the guide post, the guide sleeve includes a first guide sleeve 30 and a second guide sleeve 31, a forging press 2 is fixedly installed above the guide posts, an output end of the forging press 2 is in sliding fit with the guide posts through the guide sleeves, a rotary groove 3 is arranged at a middle portion of the forging base 1, a placing table 4 is rotatably installed in the rotary groove 3, an air blowing port 47 is arranged on a side wall of the rotary groove 3, an air blowing mechanism is arranged at one side of the inside of the forging base 1, an air collecting chamber 40 is arranged at one side of the inside of the forging base, an air inlet groove 34 and an air outlet groove 48 are respectively arranged at two sides of an upper portion of the air collecting chamber 40, the air inlet groove 34 is communicated with the outside, the air outlet groove 48 is communicated with the air blowing port 47, a chute 50 is arranged inside the first guide post 27, the chute 50 is communicated with the top end of the gas collecting cavity 40, the side wall of the first guide post 27 is provided with a communicating groove 33, the communicating groove 33 communicates the sliding hole 29 with the outside, the blowing mechanism comprises a connecting rod component, a driving mechanism and a piston 41, the piston 41 is in sliding fit with the gas collecting cavity 40, when the forging press performs forging and pressing work, the guide sleeve drives the piston 41 to slide along the gas collecting cavity 40 through the connecting component, the blowing mechanism is matched with one of the guide sleeves, so that when the forging press performs forging and pressing, the guide sleeve drives the blowing mechanism to blow gas into the gas blowing port 47, further the air inlet groove 34 is driven to pump outside air into the gas collecting cavity 40 and exhaust the air into the gas blowing port 47 along the air outlet groove 48, so as to realize blowing off of oxide skin on the placing table, the working step of manually blowing the oxide skin by workers is avoided, the working efficiency is improved, meanwhile, the one-way valves are arranged in the air inlet groove 34 and the air outlet groove 48, so that the air inlet groove 34 can only feed air, the exhaust groove 48 can only perform exhaust.

Referring to fig. 1 and 5, the connecting rod assembly is installed in the sliding slot 50, the bottom of the guide sleeve is provided with a connecting plate 28, the connecting plate 28 passes through the connecting slot and extends into the sliding hole 29 and is connected with the top end of the connecting rod assembly, the bottom end of the connecting rod assembly is connected with the piston 41, the middle of the forging base is provided with a first transmission cavity 37, the other side of the forging base is provided with a second transmission cavity 42, the first transmission cavity 37 is communicated with the bottom end of the rotating slot, the upper part of the second transmission cavity 42 is provided with a guide slot 45, the guide slot 45 is communicated with the upper end face of the forging base, when the forging machine performs forging work downwards, the second guide sleeve 31 drives the rack plate 46 to move downwards along the guide slot 45, so as to drive the gear 43 to rotate through the rack plate 46, and at this time, the one-way bearing 44 is in a free state, so that the transmission shaft 39 is in a static state, and when forging and pressing were accomplished to the forging and pressing and were moved up, second guide pin bushing 31 drove rack plate 46 and moved up, and then can drive gear 43 and carry out the reverse rotation, and one-way bearing 44 was in the interlock state this moment to make transmission shaft 39 rotate, and then drive through pivot 35 and place the platform and rotate certain angle, and through the repeated forging and pressing of forging and pressing machine, can realize placing the continuous one-way rotation of platform, with the forging and pressing quality and the efficiency that improves the work piece, and need not manual operation.

Referring to fig. 1 and 5, the driving mechanism includes a rotating shaft 35, a driving shaft and a rack plate 46, the rotating shaft 35 is rotatably fitted with the forging base 1, one end of the rotating shaft 35 is connected with the middle portion of the bottom end of the placing table 4, the other end of the rotating shaft 35 extends into the first transmission cavity 37 and is provided with a second bevel gear 36, the transmission shaft 39 is rotatably mounted inside the forging base 1, one end of the transmission shaft 39 extends into the first transmission cavity 37 and is provided with a first bevel gear 38, the first bevel gear 38 is engaged with the second bevel gear 36, the other end of the transmission shaft 39 extends into the second transmission cavity 42 and is provided with a gear 43 through a one-way bearing 44, the driving mechanism is fitted with the placing table, so that when the forging machine performs forging operation, the guide sleeve drives the driving mechanism to drive the placing table to perform one-way rotation, thereby improving the efficiency of the workpiece on the placing table and automatically adjusting the angle of the forging, and manual operation is not needed, and the working efficiency is greatly improved.

Referring to fig. 1 and 5, the rack plate 46 is connected to the bottom end of the second guide sleeve 31, the connecting rod assembly includes a first connecting rod 52 and a second connecting rod 51, the first connecting rod 52 is fixedly connected to the connecting plate 28, the second connecting rod 51 is fixedly connected to the piston 41, the upper portion of the second connecting rod 51 is provided with a sliding slot 50, the lower end of the first connecting rod 52 extends into the sliding slot 50, and the lower end of the first connecting rod 52 is provided with a stopper 55.

Referring to fig. 1, 5 and 6, a first spring 53 and a second spring 54 are further installed in the chute 50, the first spring 53 is sleeved on the first connecting rod 52, the upper end of the first spring 53 is connected with the upper end of the second connecting rod 51, the lower end of the first spring 53 is connected with the stopper 55, the second spring 54 is located below the first connecting rod 52, the upper end of the second spring 54 is connected with the lower end of the first connecting rod 52, and the lower end of the second spring 54 is connected with the bottom end of the chute 50, when the forging press performs forging work, the piston 41 can be flexibly started through the spring connection of the first connecting rod 52 and the second connecting rod 51, so that damage to the piston 41 caused by rigid starting is reduced.

Referring to fig. 3 and 4, a rotary table 13 is rotatably connected to the lower end of the placing table 4, a plurality of evenly distributed limiting blocks 14 are fixedly connected to the outer end of the rotary table 13, an adjusting groove 15 is cut at the outer end of the forging base 1, a fixed shaft 16 is fixedly connected between the inner walls of the adjusting groove 15, a loop bar 17 is sleeved on the outer end of the fixed shaft 16, a pushing block 18 is rotatably connected to one end of the loop bar 17 close to the rotary table 13, a sliding rod 19 is slidably connected to one end of the loop bar 17 far away from the rotary table 13, a limiting handle 20 is fixedly connected to the outer end of the sliding rod 19, the pushing block 18 is caused to abut against the limiting blocks 14 by pulling out the sliding rod 19 and sliding the loop bar 17 leftwards and rightwards, the rotary table 13 is rotated, so as to drive the placing table 4 and the workpiece on the surface to perform small-amplitude angle adjustment, the work efficiency of the workpiece forging and the work step of clamping the workpiece by a worker using an iron hook iron clamp to adjust the angle of the workpiece is reduced, time and labor can be saved more.

Referring to fig. 5 and 7, a plurality of deformation balloons 21 are embedded in the placing table 4, the inner bottom end of each deformation balloon 21 is fixedly connected with a fixing block 22, the upper end of each fixing block 22 is fixedly connected with an air cylinder 23, the upper end of each air cylinder 23 is fixedly connected with an arc-shaped extrusion block 24, when the placing table 4 is used for forging and pressing a workpiece placed on the surface thereof, the placing table 4 is subjected to a large amount of pressure, and when the placing table 4 tends to deform downward after being used under pressure for a long time, the deformation saccule 21 is embedded in the inner wall of the placing table 4, so that the deformation is generated when the pressure is applied at the first time, thereby extrude arc extrusion piece 24, make the connecting rod of cylinder block 23 carry out the air extrusion to its inside, cause the inside gas compression of cylinder block 23, place the pressure that platform 4 received this moment and carry out the energy dissipation decompression, reduce the pressure that places platform 4 received, and then improve the life who places platform 4 and its inside spare part.

Referring to fig. 3 and 4, a telescopic baffle 26 is embedded between the inner walls of the adjusting grooves 15, buckling grooves 2601 are formed in the outer ends of the telescopic baffles 26, and by arranging the telescopic baffles 26 and the buckling grooves 2601, when a workpiece does not need forging and pressing, the sliding rod 19 can be retracted into the loop bar 17, so that the whole sliding rod 19 is positioned in the adjusting groove 15, and then the telescopic baffles 26 are pulled to the left side to completely seal the whole adjusting groove 15, so that dust and moisture in air are not easy to enter the adjusting groove 15 to cause the blockage of parts by dust and the erosion of water vapor, and the service life and the working efficiency of the parts inside the adjusting groove 15 are improved.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. A forging and pressing strengthening process for a rare earth magnesium alloy workpiece is characterized by comprising the following steps: the method comprises the following steps:

the forging device in the S1 comprises a forging base (1), guide pillars are fixed at two ends of the forging base (1) respectively, each guide pillar comprises a first guide pillar (27) and a second guide pillar (32), a guide sleeve is sleeved at the outer end of each guide pillar and comprises a first guide sleeve (30) and a second guide sleeve (31), a forging machine (2) is fixedly installed above each guide pillar, the output end of the forging machine (2) is in sliding fit with the guide pillars through the guide sleeves, a rotary groove (3) is arranged in the middle of the forging base (1), a placing table (4) is rotatably installed in the rotary groove (3), an air blowing opening (47) is formed in the side wall of the rotary groove (3), an air blowing mechanism is arranged on one side of the inside of the forging base (1), an air collecting cavity (40) is arranged on one side of the inside of the forging base, and air inlet grooves (34) and air outlet grooves (48) are formed in two sides of the upper portion of the air collecting cavity (40) respectively, the air inlet groove (34) is communicated with the outside, the air exhaust groove (48) is communicated with the air blowing port (47), a sliding groove (50) is formed in the first guide pillar (27), the sliding groove (50) is communicated with the top end of the air collecting cavity (40), a communicating groove (33) is formed in the side wall of the first guide pillar (27), the sliding hole (29) is communicated with the outside through the communicating groove (33), the air blowing mechanism comprises a connecting rod assembly, a driving mechanism and a piston (41), and the piston (41) is in sliding fit with the air collecting cavity (40).

2. The forging and strengthening process of the rare earth magnesium alloy workpiece according to claim 1, wherein the forging and strengthening process comprises the following steps: the connecting rod assembly is installed in the sliding hole (29), the bottom of the guide sleeve is provided with a connecting plate (28), the connecting plate (28) penetrates through the connecting groove and extends into the sliding hole (29) and is connected with the top end of the connecting rod assembly, the bottom end of the connecting rod assembly is connected with the piston (41), a first transmission cavity (37) is arranged in the middle of the forging base, a second transmission cavity (42) is arranged on the other side of the forging base, the first transmission cavity (37) is communicated with the second transmission cavity (42), the first transmission cavity (37) is communicated with the bottom end of the rotating groove, a guide groove (45) is formed in the upper portion of the second transmission cavity (42), and the guide groove (45) is communicated with the upper end face of the forging base.

3. The forging and strengthening process of the rare earth magnesium alloy workpiece according to claim 1, wherein the forging and strengthening process comprises the following steps: actuating mechanism includes pivot (35), drive shaft and rack plate (46), pivot (35) with forging and pressing base (1) normal running fit, the one end of pivot (35) with the bottom middle part of placing platform (4) is connected, the other end of pivot (35) extends to in first transmission chamber (37) and install second bevel gear (36), transmission shaft (39) rotate install in inside forging and pressing base (1), the one end of transmission shaft (39) extends to in first transmission chamber (37) and install first bevel gear (38), first bevel gear (38) with second bevel gear (36) meshing, the other end of transmission shaft (39) extends to in second transmission chamber (42) and install gear (43) through one-way bearing (44).

4. The forging and strengthening process of the rare earth magnesium alloy workpiece according to claim 1, wherein the forging and strengthening process comprises the following steps: the bottom of second guide pin bushing (31) is connected with rack plate (46), link assembly includes head rod (52) and second connecting rod (51), head rod (52) with connecting plate (28) fixed connection, second connecting rod (51) with piston (41) fixed connection, the upper portion of second connecting rod (51) is provided with spout (50), the lower extreme of head rod (52) stretches into in spout (50), and the lower extreme of head rod (52) is provided with dog (55).

5. The forging and strengthening process of the rare earth magnesium alloy workpiece according to claim 1, wherein the forging and strengthening process comprises the following steps: still install first spring (53) and second spring (54) in spout (50), first spring (53) cup joint in first connecting rod (52), the upper end of first spring (53) with the upper end of second connecting rod (51) is connected, the lower extreme of first spring (53) with dog (55) are connected, second spring (54) are located the below of first connecting rod (52), the upper end of second spring (54) with the lower extreme of first connecting rod (52) is connected, the lower extreme of second spring (54) with the bottom of spout (50) is connected.

6. The forging and strengthening process of the rare earth magnesium alloy workpiece according to claim 1, wherein the forging and strengthening process comprises the following steps: place platform (4) lower extreme and rotate and be connected with carousel (13), stopper (14) of a plurality of evenly distributed of carousel (13) outer end fixedly connected with, forging and pressing base (1) outer end is opened and is dug regulation groove (15), fixedly connected with fixed axle (16) between regulation groove (15) inner wall, fixed axle (16) outer end cover is equipped with loop bar (17), the one end that loop bar (17) are close to carousel (13) is rotated and is connected with and promotes piece (18), the one end sliding connection that carousel (13) were kept away from in loop bar (17) has slide bar (19), slide bar (19) outer end fixedly connected with limit handle (20).

7. The forging and strengthening process of the rare earth magnesium alloy workpiece according to claim 1, wherein the forging and strengthening process comprises the following steps: place platform (4) embedded deformation sacculus (21) that are equipped with a plurality of evenly distributed, deformation sacculus (21) inner bottom fixedly connected with fixed block (22), fixed block (22) upper end fixedly connected with cylinder block (23), cylinder block (23) upper end fixedly connected with arc extrusion piece (24).

8. The forging and strengthening process of the rare earth magnesium alloy workpiece according to claim 6, wherein the forging and strengthening process comprises the following steps: the adjustable trough is characterized in that a telescopic baffle (26) is embedded between the inner walls of the adjusting grooves (15), and a buckling groove (2601) is chiseled at the outer end of the telescopic baffle (26).