CN112453086A - Multi-motion-form pressing and twisting combined loading extrusion equipment - Google Patents

Multi-motion-form pressing and twisting combined loading extrusion equipment Download PDF

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Publication number
CN112453086A
CN112453086A CN202011054361.6A CN202011054361A CN112453086A CN 112453086 A CN112453086 A CN 112453086A CN 202011054361 A CN202011054361 A CN 202011054361A CN 112453086 A CN112453086 A CN 112453086A
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China
Prior art keywords
cylinder
upper die
sliding block
horizontal
motion
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CN202011054361.6A
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CN112453086B (en
Inventor
张治民
李国俊
王强
于建民
薛勇
陈喆
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North University of China
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North University of China
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/002Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/21Presses specially adapted for extruding metal
    • B21C23/211Press driving devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/21Presses specially adapted for extruding metal
    • B21C23/212Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/21Presses specially adapted for extruding metal
    • B21C23/212Details
    • B21C23/214Devices for changing die or container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/21Presses specially adapted for extruding metal
    • B21C23/212Details
    • B21C23/215Devices for positioning or centering press components, e.g. die or container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C25/00Profiling tools for metal extruding
    • B21C25/02Dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C31/00Control devices, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

The utility model provides a many forms of motion are pressed and are turned round combination loading extrusion equipment, including the last punch subassembly that has the punch, have the lower punch subassembly of lower punch, have the female die subassembly that takes shape of shaping die barrel, the free end of last punch and lower punch respectively can be by the independent control cartridge in the cavity barrel intracavity of female die barrel that takes shape to form the differential extrusion to the blank that is in cavity barrel intracavity, the lower punch can form the shutoff to the corresponding one end in cavity barrel chamber. According to the multi-movement-form pressing-twisting combined loading extrusion equipment disclosed by the invention, the outer ribs with different lengths can be fully filled by controlling the downlink differential speed of the upper male die and the lower male die, no cutting or less cutting is realized, the integral forming of a plurality of outer rib cylindrical parts is realized, and the problem that the bearing capacity and service life of parts are reduced due to insufficient strength of key parts caused by cutting off material flow lines or welding seams due to machining or welding in the prior art is solved.

Description

Multi-motion-form pressing and twisting combined loading extrusion equipment
Technical Field
The disclosure relates to the technical field of die forming, in particular to a multi-motion-form pressing and twisting combined loading extrusion device.
Background
The structural characteristics of the light complex component mainly include integral structure, large size, high rib, complex shape and violent change of section size, which brings three problems to plastic forming: (1) the inner high rib or the long cantilever beam can not be formed (filled) into a complex shape and can not be demoulded; (2) the forming force of a large-size wall-thin structure is large (2000MPa), and a tool and a die cannot bear the forming force; (3) the performance difference is large, and weak links exist (traditional inner ribs are welded on the cylinder wall, the invention is integrated, and the performance difference is large).
The magnesium alloy material adopted by the light complex component has low mechanical property, especially poor plasticity index, and is difficult to meet the requirement of the structural component, the performance is improved by alloying, a certain limit is reached, and the problem can be solved only by plastic forming, but the magnesium alloy plastic forming has the following three difficulties: (1) the material has poor plasticity, is sensitive to temperature and speed, is easy to crack and is difficult to form; (2) uneven deformation and obvious anisotropy, the strength difference is more than 30 percent, and the plasticity difference is 1 time; (3) forming parameters are contrary to forming and toughening effects, and the shape and performance are difficult to control in a coordinated manner.
Conventional plastic deformation techniques do not allow the formation of such complex monolithic structures meeting the dimensional and mechanical requirements, such as:
(1) the magnesium alloy has poor plasticity, the powerful spinning is easy to crack, the local pressure stress acted on the blank by the ball and the spinning wheel is limited, the metal forging is not thorough when the tube blank is too thick, the deformation strengthening effect is not good, and the height of the formed rib is limited (less than 8 mm).
(2) The traditional extrusion forming technology is difficult to demould and is limited by the loading condition, the streamline of the inner high rib part is incomplete, the deformation is uneven, and the mechanical property is difficult to reach the use requirement; more importantly, the metal flow can not be controlled orderly, and the forming size and the performance are difficult to be integrally regulated and controlled.
(3) The multidirectional die forging can form a component with a cantilever beam on the outer wall of the shell, but the shell component with ribs or bosses in the inner cavity cannot be integrally formed; the split die extrusion and multi-directional forging technology is limited by the loading conditions (loading speed, loading force and loading sequence), incomplete streamline (turbulence, vortex and cross flow) of the shell lug and ribbed part, large crystal grains, uneven deformation and difficult mechanical performance to meet the use requirements.
(4) If the method of simple-shaped forging stock and machining is adopted, the metal deformation degree of the cantilever beam and the ribbed part of the component is limited, the streamline at the geometric stress concentration part is cut off, the mechanical property cannot meet the use requirement, and the streamline distribution has larger influence on the performance of the magnesium alloy component compared with the aluminum alloy component.
(5) For the extrusion of the cylindrical part, only a straight-wall cylinder can be manufactured by adopting a traditional backward extrusion method; for the shape of the cylinder wall with the inner ring ribs, the direct extrusion forming cannot be realized, but the thick-wall cylinder is extruded by adopting a method for extruding and thickening the cylinder wall, and then redundant materials are cut by adopting a machining method to form high ribs, so that the material waste is large and the number of working procedures is large.
Based on the foregoing deficiencies in the prior art, the applicant has found that the multi-motion-form pressure-torsion combined loading extrusion method controls the ordered flow of metal by changing the stress state (forming pressure-shear space stress) and the strain state (micro-zone continuous accumulated deformation + shear strain), remarkably improves the plastic deformation capability of low-plasticity metal, realizes the rotary extrusion motion of an involute combined die, obtains an ultra-fine grain structure and a highly dense structure through severe plastic deformation, and can improve the uniformity of the structure of a formed member. In order to perfect the multi-motion-form pressure-torsion combined loading extrusion, it is necessary to provide a multi-motion-form pressure-torsion combined loading extrusion device which is easy to implement the method.
Disclosure of Invention
Therefore, the technical problem to be solved by the present disclosure is to provide a multi-motion-form press-and-twist combined loading extrusion apparatus, which can be used to perform multi-motion-form press-and-twist combined loading extrusion on a blank, and further can perform one-step integral forming of a high-rib/long cantilever shell, so as to obtain a severe plastic deformation effect, improve the material structure of a formed piece significantly, complete the streamline distribution, weaken the anisotropy, and greatly improve the overall performance of the formed piece.
In order to solve the problem, the present disclosure provides a combination loading extrusion equipment is turned round in many forms of motion pressure, including main body frame, last mould drive arrangement and the lower mould drive arrangement of being provided with of main body frame, wherein it can detachably connect the upper die assembly to go up mould drive arrangement, it can drive to go up mould drive arrangement and produce and be close to or keep away from lower mould drive arrangement's linear motion and drive go up mould assembly and produce radial motion of opening and shutting, lower mould drive arrangement can detachably connect the lower mould assembly, and can drive the lower mould assembly produces rotary motion around its axis.
Optionally, the upper die assembly is of a split structure and at least comprises a first upper die split body and a second upper die split body which are symmetrical to each other, the upper die driving device comprises a first horizontal sliding block and a second horizontal sliding block, the first horizontal sliding block is used for being connected with the first upper die split body, the second horizontal sliding block is used for being connected with the second upper die split body, the first horizontal sliding block is connected with a first horizontal telescopic cylinder, and the second horizontal sliding block is connected with a second horizontal telescopic cylinder.
Optionally, the main body frame includes a bottom fixed support structure and a top mounting platform, a first slide rail and a second slide rail are arranged between the bottom fixed support structure and the top mounting platform, the first horizontal telescopic cylinder is slidably connected to the first slide rail, and the second horizontal telescopic cylinder is slidably connected to the second slide rail.
Optionally, the upper die driving device further comprises a main sliding block and a main telescopic force application cylinder, the main telescopic force application cylinder is installed on the top installation platform, the free end of a telescopic rod of the main telescopic force application cylinder is connected with the main sliding block, and the first horizontal sliding block and the second horizontal sliding block are respectively connected onto the lower plane of the main sliding block in a sliding mode.
Optionally, a first through hole is formed in the main sliding block, a first ejector rod driving cylinder is further installed on the main sliding block, and an expansion rod of the first ejector rod driving cylinder penetrates through the first through hole and can be detachably connected with an inner wedge block arranged in the upper die assembly.
Optionally, a first heat insulation layer is arranged in the first horizontal sliding block and/or the second horizontal sliding block; and/or the lower die driving device comprises a rotary driving device, a supporting structure and a rotary platform assembly for fixing the lower die assembly, the rotary platform assembly is rotatably connected to the supporting structure, and the rotary driving device is in driving connection with the rotary platform assembly.
The utility model provides a pair of combination loading extrusion equipment is turned round in many forms of motion pressure, it can drive to go up mould drive arrangement go up the mould subassembly and apply the extrusion force of vertical direction and the extrusion force of horizontal direction to the blank, simultaneously lower mould drive arrangement then can drive the circumference is turned round power to the blank is applied to the lower mould subassembly to realized pressing the combination loading extrusion of turning round to many forms of motion of blank, and then can realize the one-time integrated into one piece of high muscle/long cantilever beam casing, obtain the dramatic plastic deformation effect, make forming piece material tissue improve showing, the streamline distribution is complete, the weakening anisotropy, increase substantially the wholeness ability of forming piece.
Drawings
FIG. 1 is a schematic structural diagram of a multi-motion type compression-torsion combined loading extrusion apparatus according to an embodiment of the present disclosure;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a left side view of FIG. 1;
FIG. 4 is a schematic view of the assembly between the first and second horizontal slides and the upper die assembly of FIG. 1;
FIG. 5 is a left side view of the structure shown in FIG. 4 (with the upper die assembly unassembled);
FIG. 6 is a bottom view of the structure shown in FIG. 4 (with the upper die assembly unassembled);
FIG. 7 is a schematic view of a lower mold driving apparatus shown in FIG. 1;
FIG. 8 is an enlarged partial schematic view at B of FIG. 7;
fig. 9 is another schematic configuration diagram of the lower mold driving apparatus of fig. 1.
The reference numerals are represented as:
1. a main body frame; 11. a top mounting platform; 12. a first slide rail; 13. a second slide rail; 14. the bottom is fixed with a supporting structure; 15. a column; 21. a first horizontal slider; 211. a first insulating layer; 212. a connecting bond; 22. a second horizontal slider; 23. a first horizontal telescopic cylinder; 24. a second horizontal telescopic cylinder; 25. a main slider; 251. a first through hole; 252. an L-shaped slide rail; 26. a main telescopic force application cylinder; 27. a return cylinder; 3. a first ejector rod driving cylinder; 41. a rotating platform assembly; 411. rotating the platform; 412. a rotating cylinder; 413. a second thermal insulation layer; 4121. a first gear; 42. the second ejector rod drives the cylinder; 431. a first output gear; 432. a hydraulic motor; 433. a gearbox; 434. a transmission gear box; 44. a fluid-filled chamber; 441. a first bushing; 442. a second bushing; 443. a bushing body; 444. a gland; 45. a thrust bearing; 46. a vehicle body; 461. a roller; 462. supporting the telescopic cylinder; 47. a vehicle body moving telescopic cylinder; 48. a support column; 100. a hydraulic pump station; 101. installing a foundation; 102. an electrical control device; 200. an upper die assembly; 201. the first upper die is split; 202. the second upper die is split; 203. an inner wedge block; 300. a lower die assembly; 301. a shaped piece.
Detailed Description
With reference to fig. 1 to 9, according to an embodiment of the present disclosure, a multi-movement-form press-and-twist combined loading extrusion apparatus is provided, and includes a main frame 1, where an upper die driving device and a lower die driving device are disposed on the main frame 1, where the upper die driving device can detachably connect an upper die assembly 200, the upper die driving device can drive the upper die assembly 200 to generate a linear movement close to or away from the lower die driving device and drive the upper die assembly 200 to generate a radial opening and closing movement, and the lower die driving device can detachably connect a lower die assembly 300 and can drive the lower die assembly 300 to generate a rotational movement around an axis thereof. In the technical scheme, the upper die driving device can drive the upper die assembly 200 to apply extrusion force in the vertical direction (which can be understood as the axial direction of the upper die assembly 200 or the forming piece 301) and extrusion force in the horizontal direction (which can be understood as the radial direction of the upper die assembly 200 or the forming piece 301) to the blank, and simultaneously the lower die driving device can drive the lower die assembly 300 to apply circumferential screwing force to the blank, so that the multi-motion form pressure-torsion combined loading extrusion to the blank is realized, further, the one-time integral forming of a high-rib/long cantilever beam shell can be realized, the effect of severe plastic deformation is obtained, the material organization of the forming piece 301 is improved remarkably, the streamline distribution is complete, the anisotropy is weakened, and the integral performance of the forming piece 301 is greatly.
In some embodiments, the upper die assembly 200 is a split structure, and includes at least a first upper die split 201 and a second upper die split 202 that are symmetrical to each other, the upper die driving device includes a first horizontal slider 21 for connecting the first upper die split 201 and a second horizontal slider 22 for connecting the second upper die split 202, the first horizontal slider 21 is connected to a first horizontal telescopic cylinder 23, and the second horizontal slider 22 is connected to a second horizontal telescopic cylinder 24. In this technical solution, the first horizontal sliding block 21 and the second horizontal sliding block 22 are controlled by the first horizontal telescopic cylinder 23 and the second horizontal telescopic cylinder 24 respectively, so that the first upper die split 201 and the second upper die split 202 can be separated along the radial direction of the upper die assembly 200, and this separation in the radial direction enables the first upper die split 201 and the second upper die split 202 to form a radially symmetric forcing extrusion on the inner wall of the billet, and more importantly, the magnitude and direction of the forcing force applied by the first horizontal telescopic cylinder 23 and the second horizontal telescopic cylinder 24 can be flexibly and individually controlled, so as to be beneficial to further improving the material structure of the forming member 301, and it can be understood that, in the forming end of the forming member 301 of the upper die assembly 200 of the split structure, due to the separation in the radial direction between the first upper die split 201 and the second upper die split 202, an upward protruding convex hull is formed at the bottom of the formed part 301, and at this time, the adjustment (radial back and forth adjustment) of the return stroke expansion amount of the first horizontal telescopic cylinder 23 and the second horizontal telescopic cylinder 24 is combined with the axial force of the upper die assembly 200, so that the convex hull can be leveled, the convex hull does not need to be machined and eliminated, and the overall performance of the formed part 301 is greatly improved. In a specific embodiment, the first horizontal telescopic cylinder 23 and the second horizontal telescopic cylinder 24 can be of YCD250C63/45-310A10-1C ADMA type, and the radial feeding speed is 0-10 mm/s.
In some embodiments, the bottom ends of the first horizontal sliding block 21 and the second horizontal sliding block 22 are respectively configured with a dovetail groove, the first upper die division body 201 and the second upper die division body 202 are respectively and correspondingly connected in the dovetail groove, and meanwhile, corresponding locking parts, such as a connection key 212, are further provided between the groove walls of the dovetail grooves and the first upper die division body 201 and the second upper die division body 202 to achieve reliable connection between the upper die division bodies and the horizontal sliding blocks.
In some embodiments, the body frame 1 comprises a bottom fixed support structure 14 and a top mounting platform 11, a first slide rail 12 and a second slide rail 13 between the bottom fixed support structure 14 and the top mounting platform 11, it will be understood, of course, that a plurality of uprights 15 are connected between the bottom fixed supporting structure 14 and the top mounting platform 11, so as to improve the structural strength and stability of the main body frame 1, in other embodiments, at least some of the plurality of posts 15 may be used to form the first track 12 and the second track 13, so that the structure of the main body frame 1 is more compact, the first horizontal telescopic cylinder 23 is slidably connected to the first slide rail 12, the second horizontal telescopic cylinder 24 is slidably connected to the second slide rail 13, and at this time, it is ensured that the first horizontal telescopic cylinder 23 and the second horizontal telescopic cylinder 24 can synchronously descend along with the descending of the upper die assembly 200. It can be understood that the first horizontal telescopic cylinder 23 and the second horizontal telescopic cylinder 24 can also be controlled by a return cylinder 27 to move upwards and return to the initial position, wherein the return cylinder 27 can be installed on the top mounting platform 11, and this way is particularly suitable for being used for forming a guide by matching the up-down movement of the first horizontal telescopic cylinder 23 and the second horizontal telescopic cylinder 24 with the first slide rail 12 and the second slide rail 13 under the working condition that the mass and the volume of the first horizontal telescopic cylinder and the second horizontal telescopic cylinder are relatively large, so as to prevent the occurrence of a deformation and jamming phenomenon caused by separately adopting the guide stress of the first slide rail 12 and the second slide rail 13.
In some embodiments, the upper die driving device further includes a main sliding block 25 and a main telescopic force application cylinder 26, the main telescopic force application cylinder 26 is installed on the top mounting platform 11, the free end of the telescopic rod of the main telescopic force application cylinder 26 is connected to the main sliding block 25, the first horizontal sliding block 21 and the second horizontal sliding block 22 are both slidably connected to the lower plane of the main sliding block 25, and the downward movement and the upward movement of the main sliding block 25 are realized by controlling the extension and retraction of the telescopic rod of the main telescopic force application cylinder 26. Specifically, an L-shaped slide rail 252 (which is fixed by a screw) is disposed on the bottom surface of the main slider 25, two L-shaped slide rails 252 disposed oppositely form a T-shaped slide guide groove, and the first horizontal slider 21 and the second horizontal slider 22 are slidably connected to the T-shaped slide guide groove.
In some embodiments, a first through hole 251 is configured on the main slider 25, a first ram driving cylinder 3 is further installed on the main slider 25, an expansion rod of the first ram driving cylinder 3 passes through the first through hole 251 and can be detachably connected with an inner wedge 203 provided in the upper die assembly 200, the inner wedge 203 is located at an opening and closing surface of the first upper die split body 201 and the second upper die split body 202, and radial primary separation of the first upper die split body 201 and the second upper die split body 202 can be achieved through a relative position of a wedge head of the inner wedge 203 in a vertical direction. In one embodiment, the axial feed speed of the force application 200T of the first mandril driving rod 3 is 0-30 mm/s.
In some cases, the forming process of the forming member 301 may need to be heated and maintained, and this requirement obviously puts a higher requirement on the temperature deformation resistance of the apparatus, so in some embodiments, a first heat insulation layer 211 is provided in the first horizontal slider 21 and/or the second horizontal slider 22 to block the temperature of the blank from being transmitted to the main slider 25, so as to prevent the temperature rise from having adverse effects on the sealing failure, the motion locking and the like of the upper cylinder.
In some embodiments, the lower die drive includes a rotary drive, a support structure, a rotary platform assembly 41 for securing the lower die assembly 300, the rotary platform assembly 41 is rotatably connected to the support structure, and the rotary drive means is drivingly connected to the rotary platform assembly 41, and in particular, the rotary platform assembly 41 comprises a rotary platform 411 and a rotary cylinder 412 connected to a side of the rotary platform 411 away from the upper die driving device, and a reliable connection can be realized by using a key and a screw, the outer peripheral wall of the rotary cylinder 412 is provided with a first gear 4121, the first gear 4121 is arranged around the outer peripheral wall, and is engaged with the first output gear 431 of the rotation driving device, it is worth mentioning that, the first gear 4121 should at least meet the torque requirement of 40t.m in a specific design.
In some embodiments, a second through hole is formed in the rotary platform assembly 41, a second ram driving cylinder 42 is disposed on the rotary platform assembly 41, the telescopic rod of the second ram driving cylinder 42 passes through the second through hole, and the second ram driving cylinder 42 is disposed to eject the formed part 301 from the lower mold assembly 300.
In some embodiments, a second thermal insulation layer 413 is disposed between the mating surfaces of the rotating platform 411 and the rotating cylinder 412 to block the temperature of the billet from being transmitted to the direction of the supporting structure, so as to prevent the temperature from increasing to adversely affect the sealing failure, the motion locking and the like of the lower cylinder body.
In some embodiments, the rotary driving device further comprises a hydraulic motor 432, a gearbox 433 and a transmission gearbox 434, wherein a power output shaft of the hydraulic motor 432 is in driving connection with a power input end of the gearbox 433, and a power output end of the gearbox 433 is in driving connection with a power input end of the transmission gearbox 434 and drives the rotary cylinder 412 to rotate through the first output gear 431. The combination mode of the hydraulic motor 432, the gearbox 433 and the transmission gearbox 434 is adopted to realize more efficient and stable transmission of the rotary power, and meanwhile, the rotary driving rotating speed can be adjusted, in a specific embodiment, the gearbox 433 can be a right-angle speed reducer with the model B3SV16 and the reduction ratio i equal to 80, and the hydraulic motor is selected as A2FM500/60W-VPH 017F. Specifically, for example, the hydraulic pump station 100 inputs pressure oil into the hydraulic motor 432 and converts the pressure oil into rotational kinetic energy, the output torque of the hydraulic motor 432 is adjustable and is transmitted to the gearbox 433, a gear at the output end of the gearbox 433 is transmitted to the first gear 4121 through the transmission gearbox 434, and the working parameters 40t.m torque and 0.1-8 rad/min of the rotating cylinder 412 are obtained through three-stage transmission.
In some embodiments, the support structure includes a support cylinder 48, the rotating cylinder 412 is configured with a sleeve hole, the support cylinder 48 is inserted into the sleeve hole, a fluid filling chamber 44 is formed between the rotating cylinder 412 and the support cylinder 48, in one embodiment, the fluid filling chamber 44 is filled with hydraulic oil, and when the lower mold driving device rotates, the fluid filling chamber 44 is filled with hydraulic oil under a certain pressure, so that the rotating platform assembly 41 is suspended under the action of the pressure oil (in one embodiment, the rotating platform assembly 41 is lifted by 1-3mm by the pressure oil), thereby preventing the support cylinder 48 and the rotating cylinder 412 from being seated, preventing the wear of the two during relative rotation, and when the lower mold driving device does not need to rotate, the pressurized oil in the fluid-filled chamber 44 is relieved and the rotating cylinder 412 is restored to its seating on the corresponding stop structure of the support cylinder 48. It is understood that the support column 48 has a through hole which is vertically through and corresponds to the second through hole, and the telescopic rod of the second ram cylinder is disposed in the through hole and can finally eject the molded part 301 through the second through hole.
In some embodiments, the support cylinder 48 at least partially passes through the second through hole, a first bushing 441 is disposed between a wall of the second through hole and the support cylinder 48, a second bushing 442 is disposed between a wall of the nested hole and the support cylinder 48, and the first bushing 441 and the second bushing 442 form the fluid filling chamber 44 therebetween, at which time the first bushing 441 and the second bushing 442 can form a rotatable sealing structure with respect to the fluid filling chamber 44. In particular, the first and/or second bushings 441, 442 are double-piston bushings comprising a bushing body 443 and a gland 444 coupled thereto, the bushings being configured to ensure relative rotation between the adjacent components while ensuring a sealing action.
In some embodiments, the support column 48 is further sleeved with a thrust bearing 45, and the thrust bearing 45 is located in the fluid filling chamber 44 so that the rotating cylinder 412 can be seated on the thrust bearing 45 after the pressure fluid is removed from the fluid filling chamber 44. In one embodiment, the thrust bearing 45 is 9260 high thrust bearing, which can bear 1200t axial pressure, and can bear 1250 t pressure of the main telescopic force application cylinder when the rotating cylinder 412 is not rotating and is static, and the function of the device is equal to that of a common oil press.
In some embodiments, the lower die driving device further includes a vehicle body 46 and a roller 461 at the bottom of the vehicle body 46, and the rotary driving device and the supporting structure are fixedly connected to the upper plane of the vehicle body 46, so that the lower die driving device can be movably disposed at the lower portion of the apparatus, and the lower die assembly 300 can be more conveniently installed, which is particularly suitable for a larger or heavier lower die assembly 300 and other operating conditions requiring the lower die assembly 300 to be assembled by a lifting appliance, and thus the interference of the upper structure of the multi-movement-form pressure-torsion combined loading and extruding apparatus on the movement path of the lifting appliance can be prevented, and the loading and assembling process of the lower die assembly 300 is more convenient. Further, the roller 461 can cooperate with a corresponding track to guide the roller 461 through the track.
In some embodiments, the roller 461 is connected to the vehicle body 46 through a telescopic support cylinder 462, when the rotary platform assembly 41 is in the working position (i.e. the rotary platform assembly 41 applies a twisting force to the lower mold assembly 300), the telescopic support cylinder 462 is in the retracted state, the vehicle body 46 is seated on the bottom fixed support structure 14, preferably, the vehicle body 46 is also in the positioning connection with the bottom fixed support structure 14 by means of a pin joint, etc. to prevent the vehicle body 46 from being forced to rotate together, and when the vehicle body is in the non-working state (e.g. when the rotary platform assembly 41 is lifted by the lower mold assembly 300, the telescopic support cylinder 462 is in the extended state to facilitate smooth movement of the lower mold driving device; in some embodiments, the lower mold driving device further comprises a vehicle body moving telescopic cylinder 47, and the vehicle body moving telescopic cylinder 47 is fixedly connected with the vehicle body 46, so that the lower mold driving device can be mechanically moved.
It can be understood that the multi-movement-form pressing and twisting combined loading and extruding apparatus is integrally installed on an installation foundation 101, the installation foundation 101 may be specifically formed by concrete, and may also have a corresponding tunnel structure, so that the bottom fixing and supporting structure of the main body frame 1 is located in the tunnel structure, at this time, the upper plane of the rotating platform 411 may be flush with the upper opening plane of the tunnel structure, thereby being capable of reducing the erection height of a corresponding lifting appliance, and also being capable of enabling moving members such as the rotating driving device to be located in the tunnel structure, which can reduce the potential safety hazard thereof to a certain extent. The multi-movement-form pressure and torsion combined loading and extruding equipment further comprises a corresponding hydraulic pump station 100 and an electrical control device 102, which can be used for providing hydraulic oil with corresponding pressure for the stretching actions of the cylinder bodies such as the first horizontal telescopic cylinder 23, the second horizontal telescopic cylinder 24, the main stretching force application cylinder 26, the return cylinder 27, the first mandril driving cylinder 3, the second mandril driving cylinder 42 and the like, and can also be used for supplying the pressure oil of the hydraulic motor 432 for example to realize the power output; the electrical control device 102 is used for performing necessary electrical control on various components in the multi-motion-form pressure and torque combination loading extrusion device, such as corresponding electromagnetic control valves, flow valves and the like, so that the components can act cooperatively.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present disclosure is to be considered as limited only by the preferred embodiments and not limited to the specific embodiments described herein, and all changes, equivalents and modifications that come within the spirit and scope of the disclosure are desired to be protected. The foregoing is only a preferred embodiment of the present disclosure, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present disclosure, and these improvements and modifications should also be considered as the protection scope of the present disclosure.

Claims (10)

1. The utility model provides a multi-motion form is pressed and is turned round combination loading extrusion equipment, its characterized in that, includes main body frame (1), be provided with mould drive arrangement and lower mould drive arrangement on main body frame (1), wherein go up mould drive arrangement can detachably connect and go up mould subassembly (200), it can drive to go up mould subassembly (200) production and be close to or keep away from lower mould drive arrangement's linear motion and drive go up mould subassembly (200) and produce radial opening and shutting motion, lower mould drive arrangement can detachably connect lower mould subassembly (300), and can drive lower mould subassembly (300) produce rotary motion around its axis.
2. The multi-movement-form press-torsion combined loading extrusion device of claim 1, wherein the upper die assembly (200) is of a split structure and at least comprises a first upper die split body (201) and a second upper die split body (202) which are symmetrical to each other, the upper die driving device comprises a first horizontal sliding block (21) used for connecting the first upper die split body (201) and a second horizontal sliding block (22) used for connecting the second upper die split body (202), the first horizontal sliding block (21) is connected with a first horizontal telescopic cylinder (23), and the second horizontal sliding block (22) is connected with a second horizontal telescopic cylinder (24).
3. The multi-movement-form press-and-twist combined loading and extrusion device according to claim 2, wherein the main body frame (1) comprises a bottom fixed support structure (14) and a top mounting platform (11), a first slide rail (12) and a second slide rail (13) are arranged between the bottom fixed support structure (14) and the top mounting platform (11), the first horizontal telescopic cylinder (23) is slidably connected to the first slide rail (12), and the second horizontal telescopic cylinder (24) is slidably connected to the second slide rail (13).
4. The multi-movement-form press-torsion combined loading extrusion device of claim 3, wherein the upper die driving device further comprises a main sliding block (25) and a main telescopic force application cylinder (26), the main telescopic force application cylinder (26) is mounted on the top mounting platform (11), the free end of a telescopic rod of the main telescopic force application cylinder (26) is connected with the main sliding block (25), and the first horizontal sliding block (21) and the second horizontal sliding block (22) are respectively connected onto the lower plane of the main sliding block (25) in a sliding manner.
5. The multi-movement-form press-and-twist combined loading and extrusion device according to claim 4, characterized in that the main slide block (25) is provided with a first through hole (251), the main slide block (25) is further provided with a first ram drive cylinder (3), and a telescopic rod of the first ram drive cylinder (3) passes through the first through hole (251) and can be detachably connected with an inner wedge block (203) arranged in the upper die assembly (200).
6. The multi-motion-form press-and-twist combined loading and extrusion device according to claim 3, characterized in that a first heat insulation layer (211) is arranged in the first horizontal slider (21) and/or the second horizontal slider (22).
7. The multiple modality pressure and torsion combined loading extrusion apparatus of claim 1 wherein the lower die drive means includes a rotary drive means, a support structure, a rotary platform assembly (41) for securing the lower die assembly (300), the rotary platform assembly (41) being rotatably connected to the support structure, the rotary drive means being in driving connection with the rotary platform assembly (41).
8. The multi-motion-form press-and-twist combined loading and extrusion device according to claim 7, wherein a second through hole is formed on the rotating platform assembly (41), a second ram driving cylinder (42) is arranged on the rotating platform assembly (41), and a telescopic rod of the second ram driving cylinder (42) passes through the second through hole.
9. The multi-modality pressure and torsion combined loading and extrusion apparatus as claimed in claim 7, wherein the rotating platform assembly (41) includes a rotating platform (411) and a rotating cylinder (412) connected to a side of the rotating platform (411) remote from the upper die driving means, the rotating cylinder (412) having a first gear (4121) on an outer peripheral wall thereof, the first gear (4121) being disposed around the outer peripheral wall and being in meshing connection with a first output gear (431) provided to the rotating driving means.
10. The multi-motion-form press-torsion combined loading extrusion apparatus according to claim 9, wherein a second thermal insulation layer (413) is provided between the mating surfaces of the rotating platform (411) and the rotating cylinder (412); and/or the rotary driving device further comprises a hydraulic motor (432), a gearbox (433) and a transmission gearbox (434), wherein a power output shaft of the hydraulic motor (432) is in driving connection with a power input end of the gearbox (433), a power output end of the gearbox (433) is in driving connection with a power input end of the transmission gearbox (434), and the first output gear (431) drives the rotary cylinder (412) to rotate.
CN202011054361.6A 2020-09-30 2020-09-30 Multi-motion-form pressing and twisting combined loading extrusion equipment Active CN112453086B (en)

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