CN112453087B

CN112453087B - Movable rotary driving device and multi-motion-form pressing-twisting combined loading extrusion equipment

Info

Publication number: CN112453087B
Application number: CN202011059101.8A
Authority: CN
Inventors: 张治民; 李国俊; 王强; 于建民; 薛勇; 陈喆
Original assignee: North University of China
Current assignee: North University of China
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2022-10-18
Anticipated expiration: 2040-09-30
Also published as: CN112453087A

Abstract

The disclosure provides a movable rotary driving device and a multi-motion-form pressing and twisting combined loading extrusion device. The movable rotary driving device comprises a rotary driving device, a supporting structure and a rotary platform assembly used for fixing the lower die assembly, the rotary platform assembly is rotatably connected to the supporting structure, the rotary driving device is in driving connection with the rotary platform assembly, the movable rotary driving device further comprises a vehicle body and a roller positioned at the bottom of the vehicle body, and the rotary driving device and the supporting structure are fixedly connected to the upper plane of the vehicle body. According to the movable rotary driving device and the multi-motion-form pressing and twisting combined loading extrusion equipment disclosed by the invention, the rotary driving device can be movably arranged at the lower part of the multi-motion-form pressing and twisting combined loading extrusion equipment, so that the interference of the upper structure of the multi-motion-form pressing and twisting combined loading extrusion equipment on the motion path of a lifting appliance can be prevented, and the lifting and loading assembly processes of a lower die assembly are more convenient.

Description

Movable rotary driving device and multi-motion-form pressing and twisting combined loading extrusion equipment

Technical Field

The disclosure relates to the technical field of mold forming, in particular to a movable rotary driving device and a multi-motion-form pressing-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 fully) and can not be demolded; (2) The forming force of a large-size wall-thin structure is large (2000 MPa), 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 regulated and controlled integrally.

(3) The multidirectional die forging can form a component with a cantilever beam on the outer wall of the shell, but cannot integrally form the shell component with ribs or bosses in the inner cavity; 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 and corresponding components which are easy to implement the method.

Disclosure of Invention

Therefore, the technical problem to be solved by the present disclosure is to provide a movable rotation driving device and a multi-motion-form pressing-twisting combined loading extrusion device, wherein the rotation driving device can be movably disposed at the lower part of the multi-motion-form pressing-twisting combined loading extrusion device, so as to prevent the interference of the upper structure of the multi-motion-form pressing-twisting combined loading extrusion device on the motion path of the lifting appliance, and make the lifting and loading assembly processes of the lower die assembly more convenient.

In order to solve the above problem, the present disclosure provides a movable rotation driving device, which includes a rotation driving device, a supporting structure, a rotation platform assembly for fixing the lower mold assembly, the rotation platform assembly being rotatably connected to the supporting structure, the rotation driving device being in driving connection with the rotation platform assembly, a vehicle body and a roller at the bottom of the vehicle body, the rotation driving device and the supporting structure being fixedly connected to the upper plane of the vehicle body.

Optionally, the roller is connected with the vehicle body through a supporting telescopic cylinder; and/or the movable rotary driving device further comprises a vehicle body movable telescopic cylinder, and the vehicle body movable telescopic cylinder is fixedly connected with the vehicle body.

Optionally, a second through hole is formed in the rotating platform assembly, a second push rod driving cylinder is arranged on the rotating platform assembly, and a telescopic rod of the second push rod driving cylinder passes through the second through hole.

Optionally, the rotating platform assembly comprises a rotating platform and a rotating cylinder connected to one side of the rotating platform far away from the upper die driving device, and a first gear is arranged on the outer side peripheral wall of the rotating cylinder, is arranged around the outer side peripheral wall, and is in meshed connection with a first output gear of the rotating driving device.

Optionally, a second thermal insulation layer is arranged between the matching surfaces of the rotating platform and the rotating cylinder; and/or, the rotary driving device further comprises a hydraulic motor, a gearbox and a transmission gearbox, wherein a power output shaft of the hydraulic motor is in driving connection with a power input end of the gearbox, a power output end of the gearbox is in driving connection with a power input end of the transmission gearbox, and the rotary cylinder is driven to rotate by the first output gear.

Optionally, the support structure includes a support cylinder, a sleeve hole is configured on the rotary cylinder, the support cylinder is inserted into the sleeve hole, and a fluid filling cavity is formed between the rotary cylinder and the support cylinder.

Optionally, the support column at least partially passes through the second through hole, a first bushing is disposed between a hole wall of the second through hole and the support column, a second bushing is disposed between a hole wall of the casing hole and the support column, and the fluid filling cavity is formed between the first bushing and the second bushing.

Optionally, the first and/or second bushings are dual plunger bushings.

Optionally, the support column is further sleeved with a thrust bearing, and the thrust bearing is located in the fluid filling cavity.

The disclosure also provides a multi-motion-form pressing and twisting combined loading extrusion device which comprises the movable rotary driving device.

The utility model provides a pair of portable rotary driving device and many motion forms are pressed and are turned round combination loading extrusion equipment, rotary driving device can be mobilizable set up in many motion forms press the lower part of turning round combination loading extrusion equipment, can be more conveniently right lower mould subassembly is installed the operation, and this is especially suitable for the operating mode that needs assemble lower mould subassembly through the hoist to the lower mould subassembly such as the great lower mould subassembly of volume or weight, can prevent from this many motion forms press to turn round the interference of combination loading extrusion equipment superstructure to the motion path of hoist, makes lower mould subassembly hoist and mount, facial make up the equipment process more convenient.

Drawings

FIG. 1 is a schematic structural diagram of a multi-movement type combined compression and torsion loading extrusion device 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 combined reference to fig. 1 to 9, according to an embodiment of the present disclosure, a multi-movement-form press-and-twist combined loading and extruding apparatus is provided, and includes a main body frame 1, an upper die driving device and a lower die driving device are provided on the main body frame 1, wherein the upper die driving device can be detachably connected to 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 be detachably connected to a lower die assembly 300 and can drive the lower die assembly 300 to generate a rotation 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 improved.

In some embodiments, the upper die assembly 200 is a split structure, and at least includes 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 radially symmetric forcing extrusion on the inner wall of the billet, and more importantly, the magnitude and direction of the 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 formed part 301, and it can be understood that, for the upper die assembly 200 of a split structure, in the process of forming the final section of the formed part 301, an upward protruding convex hull is formed at the bottom of the formed part 301 due to the separation in the radial direction between the first upper die split 201 and the second upper die split 202, and at this time, the back stroke adjustment of the first horizontal telescopic cylinder 23 and the second horizontal telescopic cylinder 24 (the radial adjustment) is adopted, so that the upward protruding hull of the formed part 301 can be processed without greatly improving the overall convex hull finishing performance of the formed part 301. In one embodiment, the first horizontal telescopic cylinder 23 and the second horizontal telescopic cylinder 24 may 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 main body frame 1 includes a bottom fixed supporting structure 14 and a top mounting platform 11, a first sliding rail 12 and a second sliding rail 13 are disposed between the bottom fixed supporting structure 14 and the top mounting platform 11, it is understood that a plurality of columns 15 are further connected between the bottom fixed supporting structure 14 and the top mounting platform 11 to improve the structural strength and stability of the main body frame 1, in other embodiments, at least a portion of the plurality of columns 15 may be used to form the first sliding rail 12 and the second sliding rail 13, so as to make the structure of the main body frame 1 more compact, the first horizontal telescopic cylinder 23 is slidably connected to the first sliding rail 12, and the second horizontal telescopic cylinder 24 is slidably connected to the second sliding rail 13, which ensures that the first horizontal telescopic cylinder 23 and the second horizontal telescopic cylinder 24 can synchronously descend along with the descending of the upper mold assembly 200. It can be understood that, the first horizontal telescopic cylinder 23 and the second horizontal telescopic cylinder 24 may also be controlled by a return cylinder 27 to move upward and return to the initial positions, where the return cylinder 27 may be installed on the top mounting platform 11, this way is particularly suitable for forming a guide by matching the up and 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 volume of the first horizontal telescopic cylinder 23 and the second horizontal telescopic cylinder 24 are relatively large, and preventing the occurrence of the deformation and jamming phenomenon caused by separately adopting the guide force of the first slide rail 12 and the second slide rail 13.

In some embodiments, the upper mold driving device further includes a main slider 25 and a main telescopic force cylinder 26, the main telescopic force cylinder 26 is installed on the top mounting platform 11, the free end of the telescopic rod of the main telescopic force cylinder 26 is connected to the main slider 25, the first horizontal slider 21 and the second horizontal slider 22 are respectively slidably connected to the lower plane of the main slider 25, and the downward movement and the upward movement of the main slider 25 are realized by controlling the extension and retraction of the telescopic rod of the main telescopic force 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 division body 201 and the second upper die division body 202, and the first upper die division body 201 and the second upper die division body 202 can be primarily separated in a radial direction through a relative position of a wedge head of the inner wedge 203 in a vertical direction. In one embodiment, the force application 200T of the first ram drive rod 3 is at an axial feed rate of 0-30mm/s.

In some cases, the forming process of the forming member 301 may need to raise and maintain the temperature, and this requirement obviously puts a higher requirement on the temperature deformation resistance of the apparatus, so in some embodiments, a first thermal 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, thereby preventing the temperature rise from adversely affecting the sealing failure, the locking of the movement, and the like of the upper cylinder.

In some embodiments, the lower mold driving device includes a rotary driving device, a supporting structure, and a rotary platform assembly 41 for fixing the lower mold assembly 300, the rotary platform assembly 41 is rotatably connected to the supporting structure, the rotary driving device is in driving connection with the rotary platform assembly 41, in particular, the rotary platform assembly 41 includes a rotary platform 411 and a rotary cylinder 412 connected to a side of the rotary platform 411 away from the upper mold driving device, the rotary cylinder 412 has a first gear 4121 on an outer peripheral wall thereof, the first gear 4121 is disposed around the outer peripheral wall and is in meshing connection with the first output gear 431 of the rotary driving device, and it is worth mentioning that the first gear 4121 should at least meet the torque requirement of 40t.m in specific design.

In some embodiments, a second through hole is configured on the rotary platform assembly 41, a second ram driving cylinder 42 is disposed on the rotary platform assembly 41, a telescopic rod of the second ram driving cylinder 42 passes through the second through hole, and the second ram driving cylinder 42 is configured to eject the formed forming member 301 from the lower mold assembly 300.

In some embodiments, a second thermal insulation layer 413 is provided between the mating surfaces of the rotating platform 411 and the rotating cylinder 412 to block the temperature of the blank from being transmitted to 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 select a right-angle speed reducer with the model number of B3SV16 and the reduction ratio of i =80, and the hydraulic motor is selected as A2FM500/60W-VPH017F. 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, the 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 cavity 44 is formed between the rotating cylinder 412 and the support cylinder 48, in one embodiment, the fluid filling cavity 44 is filled with hydraulic oil, and when the lower mold driving device rotates, the fluid filling cavity 44 is filled with hydraulic oil under a certain pressure, so that the rotating platform assembly 41 is suspended under the action of the hydraulic oil (in one embodiment, the rotating platform assembly 41 is lifted by 1-3mm by the hydraulic oil), thereby preventing the support cylinder 48 and the rotating cylinder 412 from being seated, so as to avoid the wear of the two during relative rotation, and when the lower mold driving device does not need to rotate, the hydraulic oil in the fluid filling cavity 44 is relieved, and at this time, the rotating cylinder 412 is restored to be seated on the corresponding limit structure of the support cylinder 48. It is understood that the support column 48 has a through hole which is vertically communicated with the second through hole, and the telescopic rod of the second ram driving cylinder is arranged in the through hole and finally can eject the formed 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 rollers 461 disposed 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, so that the lower die assembly 300 can be more conveniently installed, which is particularly suitable for a working condition that the lower die assembly 300 needs to be assembled by a lifting appliance, such as a lower die assembly 300 with a larger volume or a lower die assembly 300 with a larger weight, and thus interference of the upper structure of the multi-movement-form combined press and torsion loading and extruding apparatus on the movement path of the lifting appliance can be prevented, and the upper installation and assembly process of the lower die assembly 300 can be more conveniently performed. 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 telescopic body moving cylinder 47, and the telescopic body moving 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 compression-torsion combined loading and extrusion device is integrally installed on the 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 type 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 above are only preferred embodiments of the present disclosure, and it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present disclosure, and these modifications and variations should also be regarded as the protection scope of the present disclosure.

Claims

1. A movable rotary driving device is characterized by being movably arranged at the lower part of a multi-movement-form pressure-torsion combined loading extrusion device, and comprising a rotary driving device, a supporting structure, a rotary platform assembly (41) for fixing a lower die assembly (300), wherein the rotary platform assembly (41) is rotatably connected to the supporting structure, the rotary driving device is in driving connection with the rotary platform assembly (41), 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); the multi-movement-form press-torsion combined loading extrusion equipment comprises a main body frame (1), wherein an upper die driving device and a lower die driving device are arranged on the main body frame (1), the upper die driving device can be detachably connected with an upper die assembly (200), the upper die driving device can drive the upper die assembly (200) to generate linear motion close to or far away from the lower die driving device and drive the upper die assembly (200) to generate radial opening and closing motion, the upper die driving device can drive the upper die assembly (200) to apply vertical extrusion force and horizontal extrusion force on a blank, and the lower die driving device can be detachably connected with a lower die assembly (300) and can drive the lower die assembly (300) to generate rotary motion around the axis of the lower die assembly; 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 being connected with the first upper die split body (201) and a second horizontal sliding block (22) used for being connected with 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); in the forming end section process of the forming part (301), adjusting the return stroke expansion amount of the first horizontal telescopic cylinder (23) and the second horizontal telescopic cylinder (24) so as to be compounded with the extrusion force of the upper die assembly (200) on the blank in the vertical direction to flatten the upward protruding convex hull formed at the bottom of the forming part (301); 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 installed on the top installation 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 connected to the lower plane of the main sliding block (25) in a sliding mode respectively; the main sliding block (25) is provided with a first through hole (251), the main sliding block (25) is further provided with a first ejector rod driving cylinder (3), and an expansion rod of the first ejector rod driving cylinder (3) penetrates through the first through hole (251) and can be detachably connected with an inner wedge block (203) arranged in the upper die assembly (200).

2. A movable rotary drive apparatus as claimed in claim 1, characterized in that the roller (461) is connected to the vehicle body (46) by a supporting telescopic cylinder (462); and/or the movable rotary driving device further comprises a vehicle body movable telescopic cylinder (47), and the vehicle body movable telescopic cylinder (47) is fixedly connected with the vehicle body (46).

3. The movable rotary drive according to claim 1, characterized in that a second through hole is configured on the rotary platform assembly (41), a second ram drive cylinder (42) is provided on the rotary platform assembly (41), and the telescopic rod of the second ram drive cylinder (42) runs through the second through hole.

4. The movable rotary drive apparatus as claimed in claim 3, characterized in that the rotary table assembly (41) comprises a rotary table (411) and a rotary cylinder (412) connected to the rotary table (411) on a side remote from the upper die drive apparatus, the rotary 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 with the rotary drive apparatus.

5. The mobile rotary drive of claim 4, characterized in that a second thermal barrier (413) is provided between the mating faces of the rotary platform (411) and the rotary 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.

6. A movable rotary drive according to claim 4, characterized in that the support structure comprises a support cylinder (48), in that a sleeve hole is formed in the rotary cylinder (412), in which sleeve hole the support cylinder (48) is inserted, and in that a fluid filling chamber (44) is formed between the rotary cylinder (412) and the support cylinder (48).

7. The mobile rotary drive of claim 6, wherein the support cylinder (48) passes at least partially in the second through hole, a first bushing (441) being provided between the second through hole wall and the support cylinder (48), a second bushing (442) being provided between the nested hole wall and the support cylinder (48), the first bushing (441) and the second bushing (442) forming the fluid-filled chamber (44) therebetween.

8. The movable rotary drive device according to claim 7, characterized in that the first and/or second bushing (441, 442) is a double-plunger bushing.

9. A mobile rotary drive apparatus as claimed in claim 6, characterised in that said support column (48) is further fitted with a thrust bearing (45), said thrust bearing (45) being located in said fluid filling chamber (44).

10. A multi-movement form compression-torsion combined loading extrusion device, characterized by comprising a movable rotary driving device as claimed in any one of claims 1 to 9.