CN113664141A - Double-column free forging hydraulic press frame - Google Patents
Double-column free forging hydraulic press frame Download PDFInfo
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- CN113664141A CN113664141A CN202110965247.7A CN202110965247A CN113664141A CN 113664141 A CN113664141 A CN 113664141A CN 202110965247 A CN202110965247 A CN 202110965247A CN 113664141 A CN113664141 A CN 113664141A
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- 238000005242 forging Methods 0.000 title claims abstract description 37
- 238000003754 machining Methods 0.000 claims description 8
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/04—Frames; Guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
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Abstract
The invention provides a double-column free forging hydraulic press frame which comprises an upper cross beam, a lower cross beam and two upright columns arranged between the upper cross beam and the lower cross beam, wherein four pull rods are arranged between the upper cross beam and the lower cross beam as well as between the two upright columns, two ends of each pull rod are respectively provided with a threaded stretcher for pre-tightening, the upper cross beam and the lower cross beam are fixed at two ends of each upright column through the threaded stretchers in a pre-tightening manner, the front side and the rear side of the lower cross beam are respectively provided with two installation seats for installing return cylinders, the cross section of each upright column is of a rectangular structure, the outer side of each upright column is provided with a column sleeve, the inner side surface of each column sleeve is of an arc-shaped convex structure, the surface of each column sleeve is embedded with a wear-resistant guide plate, the lower cross beam is also provided with an X-shaped guide device for installing a movable workbench, and the movable workbench is quickly disassembled and positioned through the X-shaped guide device. The problem that the mobile workbench is troublesome to disassemble and assemble and the upright column is poor in rigidity can be solved, and the movable workbench is simple in structure, high in position precision, low in manufacturing cost, good in safety, long in service life and high in working efficiency.
Description
Technical Field
The invention relates to the technical field of forging hydraulic press equipment, in particular to a double-column free forging hydraulic press frame.
Background
The equipment manufacturing industry is a fundamental and strategic industry for providing technical equipment in various fields of national economy and national defense construction, and particularly the large-scale equipment manufacturing industry has great strategic significance for supporting the good and fast development of national economy and national safety. With the continuous progress of science and technology in China, the demand of heavy machinery is increased, the application of large-tonnage hydraulic presses is increased, particularly free forging hydraulic presses which are a basic process for metal plastic processing are adopted, the free forging hydraulic presses are formed by the pressure of the hydraulic presses, the impact vibration is small, the environmental impact is small, the tonnage is increased from thousands of tons to tens of thousands of tons in the past, and the requirement on forging precision is increased. For forging large forgings, the working conditions are severe, and the requirements on equipment are high, however, if a double-column inclined multi-pull-rod prestressed frame of a free forging hydraulic press of patent CN201010161389.X, the structure of an anti-unbalance loading system of a free forging hydraulic press of patent CN201010161387.0 and a free forging hydraulic press of patent N201010563407.7 show that the existing free forging hydraulic press frame mainly has the following difficulties:
1. the existing free forging hydraulic press upright column is generally of an integral structure, the cross section of the upright column is of a rectangular or round structure, a movable cross beam is generally sleeved on the upright column to slide up and down, although a guide plate is arranged, the integral strength and the wear resistance are insufficient, and when the upright column is used on a forging hydraulic press with the strength being more than 50MN, the problems of insufficient rigidity and wear resistance are easy to occur;
2. when the movable workbench is assembled, the movable workbench is generally required to be hoisted to the rack by a crane and then aligned and aligned for multiple times due to the large weight of the movable workbench, and even if the movable workbench is matched with a transverse anvil moving device for use, the movable workbench needs to be corrected for a long time, so that the assembly difficulty is seriously improved, and the installation efficiency is influenced;
3. the pull rod in the upper and lower beams of the existing free forging hydraulic press and the upright post is positioned by adopting a rectangular positioning key, the problem that the rectangular positioning key moves outwards exists in the using process, and the pull rod is used for installing the space in which the rectangular positioning key is in contact with the outside, so that the precision and the service life of the pull rod are easily influenced in the later-stage using process. Meanwhile, the upper and lower cross beams and the pull rod are fixed and pre-tightened by adopting a conventional gasket and a nut at present, the gasket is easy to generate in the stamping process, the nut at the bottom is in a loosening risk due to the moving displacement motion, and the gasket is generally a circular gasket, so that once the nut is loosened, the automatic rotation phenomenon is easy to occur, and the tensioning force is insufficient;
4. when the guide plate is positioned, screws are usually adopted for fixing at present, and in the assembling process, as a plurality of screws are required for locking simultaneously, slight inclination is easy to occur, although the use is not influenced, certain influence is caused on the precision of a contact surface in the long-term use process, and if the displacement is overlarge, the abrasion phenomenon is easy to occur;
5. the return cylinders of the existing large free forging hydraulic press are generally arranged on two sides of a frame, so that the quantity of the return cylinders is limited, the length of the return cylinders is large, the up-and-down moving efficiency of a movable cross beam is low, the whole working efficiency is low, and the body of the existing free forging hydraulic press is firm, has high reliability deviation, large unbalance loading and large slide block stroke.
Disclosure of Invention
In order to solve some or some technical problems in the prior art, the invention provides a double-column free forging hydraulic press frame, which can solve the problems of troublesome disassembly and assembly of a movable workbench and poor rigidity of an upright column, and has the advantages of simple structure, high position precision, low manufacturing cost, good safety, long service life and high working efficiency.
In order to solve the above-mentioned existing technical problem, the invention adopts the following scheme:
a double-column free forging hydraulic press frame comprises an upper cross beam, a lower cross beam and two upright columns arranged between the upper cross beam and the lower cross beam, four pull rods are arranged between the upper cross beam and the lower cross beam and between the two upright columns, both ends of each pull rod are provided with a thread stretcher for pre-tightening, the upper cross beam and the lower cross beam are pre-fastened and fixed at two ends of the upright post through the thread stretcher, two mounting seats for mounting a return cylinder are respectively arranged at the front side and the rear side of the lower cross beam, the cross section of the upright post is of a rectangular structure, the outer side of the upright post is provided with a post sleeve, the inner side surface of the post sleeve is of an arc-shaped convex structure, the surface of the post sleeve is embedded with a wear-resistant guide plate, the lower cross beam is also provided with an X-shaped guide device for installing a movable workbench, and the movable workbench is quickly disassembled, assembled and positioned through the X-shaped guide device.
Furthermore, the X-shaped guide device comprises two guide seats arranged on the lower cross beam and a plurality of strip-shaped mounting holes arranged on the guide seats, the horizontal planes of the two guide seats are of a T-shaped structure, a limiting sliding groove with two ends penetrating is formed between the two guide seats, and the movable workbench is limited and moved to be disassembled and assembled through the limiting sliding groove.
Furthermore, each column sleeve is provided with two rows of wear-resistant guide plates, each row of wear-resistant guide plates is 4-6, and the column sleeves are in contact with the movable cross beam through the wear-resistant guide plates.
Further, the horizontal error of the upper surface of the lower cross beam is not more than 0.2mm/m, the plumb straightness error of the two upright columns is not more than 0.2mm/m in the total height, and the plumb straightness error of the total length is not more than 0.8 mm.
Furthermore, the upper cross beam, the lower cross beam and the upright post are all made of ZG25Mn cast steel, the machining stress is eliminated through secondary heat treatment after integral rough machining, the pre-tightening force of the thread stretcher is 20600 KN-20650 KN, the pull rod is made of 30Cr2Ni2Mo high-strength forged steel, and the elongation error of the four pull rods is not more than 0.2 mm.
Further, the thread stretcher comprises a base plate and a locking round nut, wherein the base plate is arranged at the bottom of the locking round nut, the two adjacent pull rods at the same end are fixedly connected with the base plate, two positioning rings protruding downwards are arranged at the bottom of the base plate, and the base plate is locked and fixed through the positioning rings after being clamped.
Furthermore, an anti-loosening plate is further arranged on the outer side of the thread stretcher at the bottom of the lower cross beam, and the anti-loosening plate and the locking round nut are fixed through screws.
Furthermore, be equipped with on the post cover every wear-resisting deflector carries out the fixed punch combination and the location punch combination that fix, the location punch combination adopts two and is located both ends intermediate position about the wear-resisting deflector, the fixed punch combination adopts 6-8 and symmetry to set up the both sides of locating hole, the location punch combination with adopt the internal thread cylindric lock to connect between the wear-resisting deflector, the fixed punch combination with it is fixed through hexagon socket head cap screw between the wear-resisting deflector.
Furthermore, a plurality of annular keys and locking keys are arranged at the connecting parts between the upper cross beam and the upright post and between the lower cross beam and the upright post, the locking keys are connected on the upright post in a clamping mode, the annular keys are sleeved on the outer sides of the locking keys, and the annular keys and the upper cross beam or the lower cross beam are locked and fixed through screws.
Compared with the prior art, the invention has the beneficial effects that:
the width of the whole free forging hydraulic press frame can be reduced, the working efficiency of the return cylinder is improved, the reset speed of the movable cross beam is faster, the stability is better, the problems that the number of the return cylinders is troublesome to add and the return efficiency is low in the prior art are effectively solved, the whole working efficiency is higher, meanwhile, the firm reliability of the whole machine body can be better through the column sleeve sleeved outside the upright column, the horizontal plane position precision of the movable cross beam is ensured, the service life between the movable cross beam and the upright column is prolonged, the X-shaped guide device is installed on the lower cross beam, the movable workbench is installed on the lower cross beam through the X-shaped guide device, the movable workbench can be quickly positioned and installed through the X-shaped guide device, and when the movable workbench is assembled, the problem that the position of the existing movable workbench needs to be debugged for a plurality of times due to large weight is effectively solved, the movable workbench can be quickly positioned and moved during installation and disassembly, and particularly after being matched with the transverse anvil moving device for use, the movable workbench on the transverse anvil moving device can be quickly and accurately assembled on the X-shaped guide device for locking and fixing, so that the assembly efficiency of the large-scale movable workbench is higher, and the required labor intensity is lower.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial cross-sectional view of the threaded stretcher mounting structure on the upper cross beam in the present invention;
FIG. 3 is a partial cross-sectional view of the threaded stretcher mounting structure on the lower beam in the present invention;
FIG. 4 is a partial cross-sectional view showing the connection relationship between the ring key and the lock key in the present invention;
in the figure: the device comprises a lower cross beam 1, a mounting seat 2, a column sleeve 3, a wear-resistant guide plate 4, a positioning hole group 5, a fixing hole group 6, a cross beam 7, a pull rod 8, a threaded stretcher 9, a locking round nut 10, a base plate 11, an annular key 12, a stand column 13, an X-shaped guide device 14, a guide seat 15, a mounting hole 16, a limiting sliding groove 17, an anti-loosening plate 18, a locking key 19 and a positioning ring 20.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
As shown in fig. 1 to 4, a frame of a double-column free forging hydraulic press comprises an upper beam 7, a lower beam 1, and two upright columns 13 arranged between the upper beam 7 and the lower beam 1, wherein four pull rods 8 are arranged between the upper beam 7, the lower beam 1 and the two upright columns 13, two ends of each pull rod 8 are provided with a threaded stretcher 9 for pre-tightening, the upper beam 7 and the lower beam 1 are fixed at two ends of each upright column 13 through the threaded stretchers 9 for pre-tightening, two mounting seats 2 for mounting return cylinders are respectively arranged at the front side and the rear side of the lower beam 1, the cross section of each upright column 13 is of a rectangular structure, a column sleeve 3 is arranged at the outer side of each upright column 13, the inner side of each column sleeve 3 is of an arc-shaped convex structure, a wear-resistant guide plate 4 is inlaid on the surface of each column sleeve 3, and an X-shaped guide device 14 for mounting a movable worktable is further arranged on the lower beam 1, the moving table is quickly disassembled and assembled and positioned through the X-shaped guide device 14.
In the actual use process, because the front side and the rear side of the lower beam 1 are respectively provided with two convex mounting seats 2, the mounting seats 2 are respectively positioned at the two sides of the upright post 13, the return cylinders are arranged on the mounting seats 2, the width of the whole free forging hydraulic press frame can not be increased, the disassembly and assembly of a product can not be influenced after the installation, the whole equipment can be provided with four return cylinders, the movable beam can be accelerated and have better stability when needing to reset after stamping and forging, the problems of troublesome addition of the return cylinders and low return efficiency in the prior art are effectively solved, the up-and-down moving efficiency of the movable beam is accelerated, the whole working efficiency is higher, meanwhile, the column sleeve 3 with the inner side surface of the upright post 13 with the arc convex structure is arranged outside the rectangular cross section, the two ends of the movable beam are contacted with the arc convex surfaces of the column sleeve 3, and the movable beam is contacted with the column sleeve 3 through the wear-resistant guide plate 4 and slides up and down, the firm reliability of the sliding surface of the whole frame is better, the horizontal plane position precision of the movable cross beam is ensured, the service life of the movable cross beam and the movable cross beam is prolonged, the X-shaped guide device 14 is arranged on the lower cross beam 1, the movable workbench is arranged on the lower cross beam 1 through the X-shaped guide device 14, the movable workbench can be quickly positioned and arranged through the X-shaped guide device 14, when the movable workbench is assembled, the problem that the position of the existing movable workbench needs to be debugged for a plurality of times for a long time when being installed due to large weight is effectively solved, the movable workbench can be quickly positioned and moved when being installed and disassembled, particularly, after the movable workbench is matched with the transverse anvil moving device for use, the movable workbench on the transverse anvil moving device can be quickly and accurately assembled on the X-shaped guide device 14 for locking and fastening, the assembly efficiency of a large-sized movable workbench is higher, less labor intensive is required.
The improved structure is characterized in that the X-shaped guide device 14 comprises two guide seats 15 arranged on the lower cross beam 1 and a plurality of strip-shaped mounting holes 16 arranged on the guide seats 15, the horizontal planes of the two guide seats 15 are of a T-shaped structure, a limiting sliding groove 17 with two ends penetrating through is formed between the two guide seats 15, and the movable workbench is limited and moved for disassembly and assembly through the limiting sliding groove 17.
When installing fixedly through X-shaped guider 14 to the mobile workbench, because two 15 installation posterities have had a spacing spout 17 that both ends run through, it is spacing that the position just can be realized controlling to aim at spacing spout 17 with the arch of mobile workbench bottom, then remove the mobile workbench along spacing spout 17 and just can realize quick location, fixing piece such as at last rethread bolt will be fixed the mobile workbench and just can realize quick fixing in mounting hole 16, when the installation, no longer need rectify a plurality of directions, make its installation effectiveness higher.
The improved structure is characterized in that each column sleeve 3 is provided with two rows of wear-resistant guide plates 4, each row of guide plates is provided with 4-6 guide plates, and the column sleeves 3 are in contact with the movable cross beam through the wear-resistant guide plates 4.
The service life between the movable cross beam and the column sleeve 3 is longer, the wear resistance is better, and the problem that the gap is enlarged due to long-term movement between the movable cross beam and the column sleeve is effectively avoided.
The horizontal error of the upper surface of the lower cross beam 1 is not more than 0.2mm/m, the plumb straightness error of the two upright columns 13 is not more than 0.2mm/m on the total height, and the plumb straightness error of the total length is not more than 0.8 mm; the upper cross beam 7, the lower cross beam 1 and the upright post 13 are all made of ZG25Mn cast steel, the machining stress is eliminated through secondary heat treatment after integral rough machining, the pretightening force of the threaded stretcher 9 is 20600 KN-20650 KN, the pull rod 8 is made of 30Cr2Ni2Mo high-strength forged steel, and the elongation error of the four pull rods 8 is not more than 0.2 mm.
The upper cross beam 7 and the lower cross beam 1 are fixed at two ends of the upright post 13 through the thread stretchers 9 at two ends of the pull rod 8, the pretightening force of the thread stretchers 9 is 20600 KN-20650 KN, the assembly reliability of the whole rack is effectively ensured, the forging loosening phenomenon is avoided, meanwhile, the pull rod 8 is made of 30Cr2Ni2Mo high-strength forged steel, the upper cross beam 7, the lower cross beam 1 and the upright post 13 are all made of ZG25Mn cast steel, the machining stress is eliminated through secondary heat treatment after integral rough machining, the elongation errors of the four pull rods 8 are not more than 0.2mm, the integral position precision is effectively ensured, the problems that the upright post 13 of the existing free forging hydraulic machine is provided with a guide plate, but the integral strength and the wear resistance are insufficient and the problems that the rigidity is insufficient and the wear resistance is easy to occur when the upright post is used on a forging hydraulic machine larger than 50MN are solved.
The improved structure is characterized in that the thread stretcher 9 comprises a backing plate 11 and a locking round nut 10, the backing plate 11 is arranged at the bottom of the locking round nut 10, the two adjacent pull rods 8 at the same end are fixedly connected with the backing plate 11, two positioning rings 20 protruding downwards are arranged at the bottom of the backing plate 11, and the backing plate 11 is locked and fixed through the positioning rings 20 and then passes through the positioning rings 20.
When fixing a position the locking through the both ends of screw thread elongator 9 to pull rod 8, adopt the structure of backing plate 11 and locking round nut 10 to fix, the structure is simpler, the cost is lower, simultaneously, install through a backing plate 11 unifying between two pull rods 8 of same end, can make the location of backing plate 11 more accurate, rotatory not hard up phenomenon can not appear in the use, and the bottom of backing plate 11 forms two bellied holding rings 20 downwards, holding ring 20 card is gone into on entablature 7 or bottom end rail 1, can make backing plate 11 realize self-locking, the effectual locking round nut 10 of having solved appears not hard up phenomenon because of the displacement of backing plate 11.
In a further improvement, an anti-loosening plate 18 is further arranged on the outer side of the threaded stretcher 9 at the bottom of the lower cross beam 1, and the anti-loosening plate 18 and the locking round nut 10 are fixed through screws.
Because there is certain vibrations in the lower beam 1 in the stamping forging process, and the screw thread stretcher 9 of bottom can not produce direct contact with ground to lead to the nut to have the not hard up risk of moving back downwards, consequently, installed a locking plate 18 in the bottom of locking round nut 10, through locking plate 18 and ground contact back, can effectually avoid locking round nut 10 to produce not hard up phenomenon.
The improvement is that, be equipped with on the post cover 3 every the deflector carries out fixed punch combination 6 and location punch combination 5 that fixes, location punch combination 5 adopts two and is located both ends intermediate position about wear-resisting deflector 4, fixed punch combination 6 adopts 6-8 and symmetry to set up the both sides of location punch combination 5, location punch combination 5 with adopt the internal thread cylindric lock to connect between the wear-resisting deflector 4, fixed punch combination 6 with it is fixed through hexagon socket head cap screw between the wear-resisting deflector 4.
Wear-resisting deflector 4 is at first connected the location through two upper and lower internal thread cylinders in the middle with location punch combination 5 to guarantee its straightness that hangs down, then in installing it in fixed punch combination 6 through hexagon socket head cap screw, effectual solved adopt hexagon socket head cap screw alone to install the deflector can appear slight straightness deviation that hangs down after fixed punch combination 6 the problem, make the wear-resisting deflector 4 of vertically polylith guarantee on same straightness that hangs down.
The improved structure is characterized in that a plurality of annular keys 12 and locking keys 19 are arranged at the joints between the upper beam 7 and the lower beam 1 and the upright columns 13, the locking keys 19 are connected to the upright columns 13 in a clamped mode, the annular keys 12 are sleeved on the outer sides of the locking keys 19, and the annular keys 12 are fixedly locked with the upper beam 7 or the lower beam 1 through screws.
Compared with the prior art, install an annular key 12 again on the connection face of entablature 7 and bottom end rail 1 and stand 13 and lock the key 19 and carry out the secondary locking, thereby locking key 19 through annular key 12 and sealed protection, the effectual problem that exists of the single adoption locking key 19 locking in the prior art of having solved, make pull rod 8's positioning accuracy higher, and also can not produce not hard up and corrosion phenomenon in long-term use, make its life longer, compare in maintenance replacement, the cost is lower.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (9)
1. The utility model provides a hydraulic press frame is forged freely to twin columns, includes entablature, bottom end rail, establishes the entablature with two stands between the bottom end rail, its characterized in that: the utility model discloses a quick assembly disassembly location device, including stand, entablature with bottom end rail and bottom end rail be equipped with four pull rods between the stand, the both ends of pull rod all are equipped with screw thread stretcher pretension, the entablature with the bottom end rail passes through screw thread stretcher pretension is fixed the both ends of stand, both sides respectively are equipped with two mount pads that are used for installing the return stroke jar around the bottom end rail, the cross section of stand is the rectangle structure, the outside of stand is equipped with the column jacket, the medial surface of column jacket is the protruding structure of arc, wear-resisting deflector is inlayed on the surface of column jacket, still be equipped with the X shape guider who is used for installing the mobile workbench on the bottom end rail, the mobile workbench passes through X shape guider carries out quick assembly disassembly location.
2. The double column free forging hydraulic press frame of claim 1, wherein: the X-shaped guide device comprises two guide seats arranged on the lower cross beam and a plurality of strip-shaped mounting holes arranged on the guide seats, the horizontal planes of the two guide seats are of a T-shaped structure, a limiting sliding groove with two ends penetrating is formed between the two guide seats, and the movable workbench is limited and moved to be disassembled and assembled through the limiting sliding groove.
3. The double column free forging hydraulic press frame of claim 1, wherein: each column sleeve is provided with two rows of wear-resistant guide plates, each row of wear-resistant guide plates are 4-6, and the column sleeves are in contact with the movable cross beam through the wear-resistant guide plates.
4. The double column free forging hydraulic press frame of claim 1, wherein: the horizontal error of the upper surface of the lower cross beam is not more than 0.2mm/m, the plumb straightness error of the two stand columns is not more than 0.2mm/m on the total height, and the plumb straightness error of the total length is not more than 0.8 mm.
5. The double column free forging hydraulic press frame of claim 4, wherein: the upper cross beam, the lower cross beam and the upright post are all made of ZG25Mn cast steel, machining stress is eliminated through secondary heat treatment after integral rough machining, the pretightening force of the thread stretcher is 20600 KN-20650 KN, the pull rod is made of 30Cr2Ni2Mo high-strength forged steel, and the elongation error of the four pull rods is not more than 0.2 mm.
6. The frame of a double-column free forging hydraulic press as claimed in claim 5, wherein said thread stretcher includes a backing plate and a locking nut, said backing plate is disposed at the bottom of said locking nut, two adjacent tie rods at the same end are connected and fixed by said backing plate, two positioning rings protruding downward are disposed at the bottom of said backing plate, and said backing plate is locked and fixed by said positioning rings after being fastened by said positioning rings.
7. The double column free forging hydraulic press frame of claim 6, wherein: the outer side of the thread stretcher at the bottom of the lower cross beam is also provided with an anti-loosening plate, and the anti-loosening plate and the locking round nut are fixed through screws.
8. The double column free forging hydraulic press frame of claim 7, wherein: the column sleeve is provided with a fixed hole group and a positioning hole group for fixing each wear-resistant guide plate, the positioning hole groups are arranged at the middle positions of the upper end and the lower end of each wear-resistant guide plate in two modes, the fixed hole groups are arranged at the two sides of the positioning hole in 6-8 modes and symmetrically, the positioning hole groups are connected with the wear-resistant guide plates through internal thread cylindrical pins, and the fixed hole groups are fixed with the wear-resistant guide plates through hexagon socket head cap screws.
9. The double column free forging hydraulic press frame of claim 1, wherein: the connecting part between the upper cross beam and the lower cross beam and the upright post is provided with a plurality of annular keys and locking keys, the locking keys are clamped on the upright post, the annular keys are sleeved outside the locking keys, and the annular keys and the upper cross beam or the lower cross beam are locked and fixed through screws.
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| CN202110965247.7A CN113664141B (en) | 2021-08-23 | 2021-08-23 | Double-column free forging hydraulic press frame |
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| CN202110965247.7A CN113664141B (en) | 2021-08-23 | 2021-08-23 | Double-column free forging hydraulic press frame |
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| JP2001058238A (en) * | 1999-08-19 | 2001-03-06 | Sumitomo Heavy Ind Ltd | Frame structure in automatic forging press machine |
| CN101733351A (en) * | 2008-10-12 | 2010-06-16 | 通裕重工股份有限公司 | 120MN free forging oil press |
| CN101823114A (en) * | 2010-04-09 | 2010-09-08 | 太原重工股份有限公司 | Double-post inclined type multi-pull-rod prestress machine frame of free forging hydrostatic press |
| CN202701256U (en) * | 2012-07-24 | 2013-01-30 | 太原重工股份有限公司 | Combined-type lower crossbeam of forging hydraulic machine |
| CN203170894U (en) * | 2013-02-01 | 2013-09-04 | 青岛嘉龙自动化设备有限公司 | Forging machine |
| CN203245325U (en) * | 2013-02-19 | 2013-10-23 | 青岛嘉龙自动化设备有限公司 | Main rack of forging press |
| CN103691868A (en) * | 2013-12-10 | 2014-04-02 | 沈阳朝重工程设计有限公司 | Free forging oil press rack |
| CN108655316A (en) * | 2018-04-20 | 2018-10-16 | 天津市天锻压力机有限公司 | Hydraulic forging press for wrought magnesium alloy wheel hub |
| CN211370975U (en) * | 2019-12-30 | 2020-08-28 | 无锡巧菲雅精密机械有限公司 | Anti-loosening nut structure |
| CN112247063A (en) * | 2020-09-30 | 2021-01-22 | 湖南润华新材料有限公司 | Forging device for manufacturing valve seat for fire hydrant and using method thereof |
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Effective date of registration: 20240229 Address after: 313000, No. 57 Zhendong Road, North District, Qingshan Industrial Park, Donglin Town, Wuxing District, Huzhou City, Zhejiang Province Patentee after: Zhejiang Jiede Machinery Technology Co.,Ltd. Country or region after: China Address before: 310000 Tongyi village, Hezhuang street, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG FENGCHENG INTELLIGENT TECHNOLOGY Co.,Ltd. Country or region before: China |