CN111036819B - Anti unbalance loading device of precision hot die forging press - Google Patents
Anti unbalance loading device of precision hot die forging press Download PDFInfo
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- CN111036819B CN111036819B CN201911310308.5A CN201911310308A CN111036819B CN 111036819 B CN111036819 B CN 111036819B CN 201911310308 A CN201911310308 A CN 201911310308A CN 111036819 B CN111036819 B CN 111036819B
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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
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
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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 relates to the technical field of forging mechanical presses, in particular to an anti-unbalance-loading device of a precision hot die forging press. The device comprises a rack, wherein the rack adopts an integral cast steel box type frame symmetrical structure and forms a symmetrical cage type through a transverse plate; the bottom of the working table plate is provided with a positioning key fixed on the frame; the slider body, the slider body is the cast steel structure of whole, is equipped with long octahedral guide rail on the slider body, and wherein the guide rail of front side, right side and rear side is 90 straight guide rails, is oblique guide rail around the left side, and clearance adjustment mechanism about the inside left side of frame is equipped with, and clearance adjustment mechanism around the inside front side of frame is equipped with. The invention has the characteristics of obviously improving the rigidity of the whole machine, the guide precision of the sliding block and strong anti-unbalance loading capability, simultaneously can reduce the weight of the whole machine, achieves the green material saving, improves the operation precision and the forging quality, and realizes the obvious effects of improving the precision, the rigidity, the high efficiency and the green material saving of the hot die forging mechanical press and the automatic production line.
Description
The technical field is as follows:
the invention relates to the technical field of forging mechanical presses, in particular to an anti-unbalance-loading device of a precision hot die forging press.
Background art:
at present, as shown in fig. 1, a frame and a slide block of an existing mechanical press are one of main components of a hot die forging press, a frame and slide block guide device of a traditional structure mostly adopts 45-degree inclined guide rails which are distributed around the slide block, and a professional needs to adjust a gap during installation to ensure the precision of a machine tool. 45 inclined guide can be under high temperature environment expansion deformation, causes the slider guide clearance to diminish easily and leads to the slider guide to generate heat the aggravation wearing and tearing, can cause to grind when serious or the card is dead, need reserve great thermal expansion clearance during the assembly, has reduced the operation precision of lathe. The frame of traditional structure is simple structure under the effect circumstances of heavy unbalance loading, can further cause the increase of frame deflection moreover in high temperature environment, causes the whole rigidity of frame not enough can't satisfy high accuracy die forging's requirement.
The hot die forging press has complex shape of the forged workpiece, the geometric center of the workpiece is inconsistent with the center of the press, and offset load is easy to generate at the bottom dead center. Frame, slider guider rigidity not enough will further strengthen unbalance loading power to the influence of product precision, can cause the local quick wearing and tearing of slider the latter half copper guide rail board, reduce the dynamic precision of hot forging press, still cause guide rail adjusting bolt screw thread to damage easily, can't adjust the inclined guide rail clearance, also can't dismantle when serious, increase customer's use and maintenance cost. Meanwhile, the work table plate and the rack in the traditional structure are fixed only by bolts without transverse limit, and when the work table plate and the mold are acted by heavy unbalance loading force, the work table plate and the mold are easy to move together, so that the waste products of processed parts further influence the service life of the mold. The hot die forging press with the traditional structure can only increase the thickness of a casting frame and a sliding block by increasing the integral rigidity, so that the whole machine is heavy, the cost is increased, and materials are wasted. The problems seriously restrict the improvement of the rigidity of the whole hot die forging press machine and the improvement of the precision of the hot die forging press machine, and can not meet the requirements of precision, rigidity, high efficiency and green material saving development of a high-end hot die forging press machine and an automation line.
The invention content is as follows:
in order to make up for the defects of the prior art, the invention provides the offset load resisting device of the precision hot die forging press, solves the problem of precision improvement caused by the insufficient rigidity of the hot die forging press and an automatic wire rack, solves the problem that the precision of a machine tool is influenced by the easy displacement of a rack guide rail under the action of heavy offset load, solves the problem that the thread damage cannot be caused by the offset load at a lower dead point of a slide block guide rail adjusting bolt to adjust a gap or be disassembled, and solves the problem that the precision is influenced by the displacement of a working table plate caused by the long-time fastening of the working table plate by the action of heavy offset load.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an anti-unbalance loading device of a precision hot die forging press, comprising:
the frame is of a symmetrical structure of an integral cast steel box type frame, a plurality of transverse connecting rib plates are cast at the rear side of the frame, and the left frame and the right frame at the rear side are connected into a whole; the left side and the right side of the front side of the rack are provided with processing surfaces, a plurality of vertical key grooves are arranged on the processing surfaces, positioning keys I are arranged in the vertical key grooves, a plurality of transverse connecting plates which are symmetrical to the transverse connecting rib plates are arranged on the front side of the rack at intervals up and down, the vertical key grooves which are the same as the position of the rack are arranged on the transverse connecting plates, the transverse connecting plates are fixed on the rack through bolts, the left rack and the right rack on the front side are connected into a whole, and the rack is integrally formed;
key grooves in the left, right, front and back directions are machined in a rack at the bottom of the working table plate, a second positioning key is arranged in each key groove, the key grooves are formed in corresponding positions of the bottom plane of the working table plate, and the working table plate is fixed on the rack through bolts;
the slider body, the slider body is the whole cast steel structure, it has long octahedral guide rail to process on the slider body, every face is equipped with two guide rails, wherein the front side, the guide rail of right side and rear side is 90 straight guide rails, be oblique guide rail around the left side, the inside right side of frame and rear side correspond slider body right side and rear side guide rail position and are equipped with two copper guide rail boards with copper screw fixation respectively, clearance adjustment mechanism about the position that the inside left side of frame corresponds slider body left side front and back oblique guide rail is equipped with, clearance adjustment mechanism around the position that the inside front side of frame corresponds slider body front side guide rail is equipped with.
The left and right gap adjusting mechanism comprises a front adjusting wedge iron and a rear adjusting wedge iron which are arranged at the front and rear of the left side of the rack, copper guide rail plates fixed by copper screws are respectively arranged at the inner sides of the front adjusting wedge iron and the rear adjusting wedge iron, and a third positioning key fixed in a horizontal key groove of a front backing plate and a rear backing plate of the rack by screws is respectively arranged in a horizontal key groove at the outer side; a threaded through hole is formed in the bracket on the rear side of the rack, a rear adjusting bolt with a hole and a through hole in the middle is arranged in the threaded through hole, the tail plane of the rear adjusting bolt with the hole is tightly propped against the outer plane of the rear adjusting wedge, and an outer hexagon bolt penetrates through an elastic washer and the through hole in the middle of the rear adjusting bolt and is arranged in the threaded hole outside the rear adjusting wedge; the front side of the rack is provided with a threaded through hole, a front adjusting bolt with a hole is arranged in the threaded through hole, the middle of the front adjusting bolt with the hole is a through hole, the tail plane of the front adjusting bolt with the hole is tightly propped against the outer plane of the front adjusting wedge, and an outer hexagon bolt penetrates through an elastic washer and the middle of the front adjusting bolt with the hole and is arranged in the threaded hole outside the front adjusting wedge.
And a fourth positioning key is respectively arranged in the vertical key grooves at the upper part and the lower part of the front adjusting wedge iron and the rear adjusting wedge iron, and the fourth positioning key is fixed through a bolt, an elastic washer and a check ring.
A plurality of transverse T-shaped guide grooves are formed in the front adjusting wedge and the rear adjusting wedge, T-shaped pressing blocks with threaded holes are arranged in the T-shaped guide grooves, long outer hexagonal bolts penetrate through the elastic washers and the left side unthreaded holes of the rack and are fixed in the threaded holes of the T-shaped pressing blocks, and the front adjusting wedge and the rear adjusting wedge can move back and forth along the T-shaped pressing blocks.
The front-back clearance adjusting mechanism comprises an upper guide rail bracket and a lower guide rail bracket which are arranged on the front side of the rack, and a horizontal positioning key five and a vertical positioning key six are respectively arranged between the upper guide rail bracket and the rack and between the lower guide rail bracket and the rack; go up the inside whole piece of transferring to one side of guide rail bracket and lower guide rail bracket, go up the inside whole piece of transferring to one side of guide rail bracket adjustment head up, the inside whole piece of transferring to one side of lower guide rail bracket adjustment head is turned over the dress downwards, and the whole inboard copper guide rail board that is equipped with the copper screw fixation of transferring to one side.
The utility model discloses a copper guide rail plate, including the inclined adjusting block, two places strip unthreaded hole about the inclined adjusting block outside is equipped with, middle one department screw thread through-hole, two stud one end are passed the rectangular unthreaded hole on inclined adjusting block upper portion and are fixed in the outer threaded hole of upper and lower guide rail support, the other end is fixed with two hexagon nuts, the square head adjusting bolt who is equipped with hexagon nut screws in advance to push up tightly on upper and lower guide rail support behind the screw thread through-hole in the middle of the outside of inclined adjusting block, stud and square head adjusting bolt cooperation use drive the inclined adjusting block up-and-down motion around adjusting the clearance between copper guide rail plate and the slider, pass the rectangular unthreaded hole of upper and lower guide rail support front side through outer hexagon bolt and elastic washer and turn round tightly in the threaded hole in the inclined adjusting block outside.
The upper and lower guide rail support front side is equipped with the keyway, be equipped with navigation key seven in the keyway, the outside of angular adjustment piece is equipped with limit stop, limit stop's preceding blank pressing and angular adjustment piece cooperation and compress tightly the angular adjustment piece, limit stop's preceding blank pressing inboard is equipped with three intervals and equals and be used for adjusting guide rail clearance and seven complex keyways of navigation key, pass the vertical rectangular hole of limit stop front side with outer hexagon bolt and elastic washer and fix limit stop on upper and lower guide rail support, pass the unthreaded hole of limit stop's side blank pressing with outer hexagon bolt and elastic washer and fix in the threaded hole of angular adjustment piece.
And a lubricating hole is formed in the inclined adjusting block and used for injecting lubricating oil between the inclined adjusting block and the copper guide rail plate.
By adopting the scheme, the invention has the following advantages:
the frame adopts the symmetrical structure of integral cast steel box frame, and the frame rear side is cast and is had many transverse connection gusset, and the transverse connection board of taking the navigation key one is installed to the frame front side, connects into an entirety with left and right frames, has improved complete machine rigidity, precision, satisfies the requirement of big impact, heavy load, unbalance loading power and green material saving. Four positioning keys II are additionally arranged between the working table plate and the rack, so that the working table plate and the die are prevented from displacing, and the product precision is improved.
Adopt independent positioning key between left side adjustment inclined guide and frame, when guaranteeing that bottom dead center yawing force and unbalance loading are big, the whole problem that influences the lathe precision that leads to the guide rail clearance grow that can not appear in each adjustment inclined guide and copper guide. And the shearing force is borne by using the independent key, the adjusting bolt is only stressed by the compression force and does not bear the shearing force when the eccentric load force of the bottom dead point is very large, the problems that the guide rail gap is enlarged or the bolt cannot be disassembled due to the damage of the adjusting bolt can be avoided, the safety accident caused by the broken and flying-out of the bolt can also be avoided, and meanwhile, when the key is damaged by too large stress, the cost is saved by only replacing the standard key without replacing the whole front guide rail bracket. The split type front guide rail support is adopted on the front side of the rack, the lower guide rail support is large in lateral force and unbalance loading force at the bottom dead center of the machine tool, so that the lower copper guide rail is seriously abraded, when the guide rail is seriously abraded, only the lower copper guide rail needs to be replaced, the upper copper guide rail can be continuously used, and the use cost of customers is saved.
The invention has the characteristics of unique structure, high rigidity of the whole machine, high guide precision of the sliding block and strong unbalance loading resistance, and can reduce the weight of the casting frame and achieve the effect of green material saving. Under the conditions of impact, vibration, heavy load, unbalance load and the like, the requirement of the hot die forging mechanical press on improving the integral rigidity is met, the operation precision and the forging quality are improved, and the effects of precision, rigidity, high efficiency and green material saving of the hot die forging mechanical press and an automatic production line are realized.
Description of the drawings:
fig. 1 is a schematic top view of a mechanical press according to the prior art.
Fig. 2 is a schematic front view of the present invention.
Fig. 3 is a rear view structural diagram of the present invention.
Fig. 4 is a front view of the present invention with the transverse web removed.
Fig. 5 is a schematic view of the structure in direction a of fig. 4.
Fig. 6 is a schematic sectional view along the direction C-C in fig. 4.
Fig. 7 is a schematic view of the structure in the direction B of fig. 4.
Fig. 8 is a schematic sectional view along direction F-F of fig. 5.
Fig. 9 is an enlarged schematic view of a portion E in fig. 4.
Fig. 10 is an enlarged schematic view of the X-part in fig. 7.
In the figure, 1, 45-degree inclined guide rails, 2, slider bodies, 3, guide rail plates, 4, a frame, 5, transverse connecting plates, 6, positioning keys I and 7, a working table plate, 8, positioning keys II, 9, 90-degree straight guide rails, 10, inclined guide rails, 11, copper guide rail plates, 12, front adjusting wedges, 13, rear adjusting wedges, 14, positioning keys III and 15, rear adjusting bolts with holes, 16, front adjusting bolts with holes, 17, positioning keys IV and 18, T-shaped guide grooves, 19, T-shaped pressing blocks, 20, long hexagon socket head bolts, 21, upper guide rail supports, 22, lower guide rail supports, 23, positioning keys V and 24, positioning keys VI and 25, inclined adjusting blocks, 26, square head adjusting bolts, 27, positioning keys VII and 28, limiting stoppers, 29, lubricating holes, 30 and transverse connecting rib plates.
The specific implementation mode is as follows:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
As shown in fig. 2 to 10, an anti-unbalance loading device of a precision hot forging press comprises:
the machine frame 4 is of a symmetrical structure of an integral cast steel box type frame, a plurality of transverse connecting rib plates are cast at the rear side of the machine frame 4, and the left machine frame and the right machine frame at the rear side are connected into a whole; the left side and the right side of the front side of the rack are provided with processing surfaces, a plurality of vertical key grooves are arranged on the processing surfaces, a first positioning key 6 is arranged in each vertical key groove, a plurality of transverse connecting plates 5 which are symmetrical to the transverse connecting rib plates are arranged on the front side of the rack at intervals up and down, the vertical key grooves which are the same as the position of the rack are arranged on the transverse connecting plates 5, the transverse connecting plates 5 are fixed on the rack 4 through bolts, and the left rack and the right rack on the front side are connected into a whole, so that the rack is integrally of a symmetrical cage structure, can better resist impact and has better;
the working table plate 7 is provided with key grooves in the left, right, front and back directions on a rack at the bottom of the working table plate 7, a second positioning key 8 is arranged in each key groove, the key groove is arranged at the corresponding position of the bottom plane of the working table plate 7, the working table plate 7 is fixed on the rack 4 through a bolt, and the second positioning key 8 at the lower part of the working table plate 7 can ensure that the working table plate 7 and the whole die cannot displace under the conditions of large impact and heavy load, so that the product precision is ensured, and the influence of unbalanced load on the die precision can be effectively reduced;
the slider body 2, the slider body 2 is whole cast steel structure, it has long octahedral guide rail to process on the slider body 2, guide accuracy and anti unbalance loading ability have been improved, every face is equipped with two guide rails, wherein the guide rail of front side, right side and rear side is 90 straight guide rail 9, be oblique guide rail 10 around the left side, guide rail clearance about being used for adjusting, slider octahedral guide rail and each copper guide rail board 11 contact, the inside right side of frame 4 and the corresponding slider body 2 right side of rear side and rear side guide rail position of rear side are equipped with two copper guide rail boards 11 with copper screw fixed respectively, clearance adjustment mechanism about the position of the corresponding slider body 2 left side front and rear oblique guide rail in the inside left side of frame 4 is equipped with clearance adjustment mechanism, the position that the inside front side of frame 4 corresponds slider body 2 front rail is equipped with front and rear clearance adjustment.
Through the improved design of the left and right gap adjusting mechanisms and the front and rear gap adjusting mechanisms of the frame 4, the working table plate 7 and the sliding block body 2, the three components are matched to achieve the characteristics of high overall lifting rigidity, high sliding block guiding precision and high unbalance loading resistance.
The left-right gap adjusting mechanism comprises a front adjusting wedge iron 12 and a rear adjusting wedge iron 13 which are arranged on the left side of the rack 4 and have the front-rear inclination of 1:20, copper guide rail plates 11 fixed by copper screws are respectively arranged on the inner sides of the front adjusting wedge iron 12 and the rear adjusting wedge iron 13, and a third positioning key 14 fixed in the horizontal key slot of the front backing plate and the rear backing plate of the rack by screws is respectively arranged in the horizontal key slot on the outer side; a threaded through hole is formed in the bracket on the rear side of the rack, a rear adjusting bolt with a hole 15 with a through hole in the middle is arranged in the threaded through hole, the tail plane of the rear adjusting bolt with a hole 15 is tightly propped against the outer plane of the rear adjusting wedge 13, and an outer hexagon bolt penetrates through an elastic washer and the through hole in the middle of the rear adjusting bolt with a hole 15 and is arranged in the threaded hole in the outer part of the rear adjusting wedge 13; the front side of the rack is provided with a threaded through hole, a front adjusting bolt with a hole 16 is arranged in the threaded through hole, the middle of the threaded through hole is a through hole, the tail plane of the front adjusting bolt with a hole 16 is tightly propped against the outer plane of the front adjusting wedge 12, an outer hexagon bolt penetrates through an elastic washer and the middle through hole of the front adjusting bolt with a hole to be arranged in the threaded hole in the outer part of the front adjusting wedge 12, and the threaded through hole in the front side of the rack 4 is arranged on the upper guide rail support 21 and the lower guide. The adjusting bolt 15 behind the foraminiferous of frame 4 rear side uses with outer hexagon bolt cooperation, drives back adjustment drift 13 seesaw and adjusts the guide rail clearance, adjusting bolt 16 before the foraminiferous of frame 4 front side uses with outer hexagon bolt cooperation, adjust drift 12 seesaw and adjust the guide rail clearance before driving, twist the hexagon nut on the adjusting bolt 15 behind the foraminiferous of frame rear side after the clearance adjustment is good, prevent that foraminiferous back adjusting bolt 15 is not hard up, twist the hexagon nut on the adjusting bolt 16 before the foraminiferous of frame front side simultaneously, it is not hard up to prevent foraminiferous front adjusting bolt 16. Then, the long outer hexagon bolts 20 on the outer portion of the left side of the rack are tightly screwed, so that the T-shaped pressing block 19 presses the rear adjusting wedge 13 and the front adjusting wedge 12, and the rear adjusting wedge 13 and the front adjusting wedge 12 can be locked to prevent movement.
And a positioning key IV 17 is respectively arranged in the upper vertical key groove and the lower vertical key groove of the front adjusting wedge 12 and the rear adjusting wedge 13, and the positioning key IV 17 is fixed through a bolt, an elastic washer and a retainer ring to prevent the positioning key IV 17 from moving under the impact force. Therefore, the lateral shearing force and the offset load force borne by the front adjusting wedge 12 and the rear adjusting wedge 13 at the bottom dead center are borne by the positioning key IV 17, and the rear adjusting bolt with holes 15 and the front adjusting bolt with holes 16 cannot be deformed due to impact force, so that the adjustment and the disassembly cannot be realized. The front side skew adjusting block, the left side front adjusting wedge 12 and the rear adjusting wedge 13 are jointly adjusted and matched for use, and the design requirements of the eight guide rail gaps can be met.
The front adjusting wedge 12 and the rear adjusting wedge 13 are internally provided with a plurality of transverse T-shaped guide grooves 18, a T-shaped pressing block 19 with a threaded hole is arranged in each T-shaped guide groove 18, a long outer hexagonal bolt 20 penetrates through an elastic washer and a left side unthreaded hole of the rack and is fixed in the threaded hole of the T-shaped pressing block 19, and the front adjusting wedge 12 and the rear adjusting wedge 13 can move back and forth along the T-shaped pressing block 19.
The front and rear gap adjusting mechanism comprises an upper guide rail support 21 and a lower guide rail support 22 which are arranged on the front side of the rack 4, a horizontal positioning key five 23 and a vertical positioning key six 24 are respectively arranged between the upper guide rail support 21 and the rack 4, the upper guide rail support and the lower guide rail support are adjusted in the vertical position and then placed in the horizontal positioning key five 23, and the upper guide rail support and the lower guide rail support are fixed through a check ring, a bolt and an elastic washer. The inner hexagon bolts pass through the elastic washer and the unthreaded holes on the two sides of the upper guide rail bracket and the lower guide rail bracket to fix the upper guide rail bracket 21 and the lower guide rail bracket 22 on the frame 4. And then, positioning keys six 24 are respectively placed in the upper vertical key groove and the lower vertical key groove on the two sides of the upper guide rail support and the lower guide rail support and are fixed by using check rings, bolts and elastic washers. The horizontal positioning key five 23 can prevent the guide rail bracket from moving downwards due to vibration to influence the precision, the vertical positioning key six 24 can play a role in resisting unbalance loading, and the vertical positioning key six 24 bears huge lateral force when in a bottom dead center, so that the inner hexagon bolt and the elastic washer are not damaged due to stress; go up guide rail support 21 and lower guide rail support 22 inside all be equipped with the piece 25 of transferring to one side about, the inside piece 25 of transferring to one side of going up guide rail support 21 adjusts the head upwards, the inside piece 25 of transferring to one side of lower guide rail support 22 adjusts the head and turns over the dress downwards, the inboard copper guide plate 11 of fixing with the copper screw that is equipped with of the piece 25 inboard of transferring to one side, the outside of piece 25 of transferring to one side is equipped with about two rectangular unthreaded holes of length, middle threaded through hole, two stud one end is passed the rectangular unthreaded hole on the piece 25 upper portion of transferring to one side and is fixed in the threaded hole outside upper and lower guide rail support, the other end is fixed with two hexagon nuts, square head adjusting bolt 26 that is equipped with hexagon nut screw revolves into the threaded through hole in the middle of the outside of piece 25 of transferring to one side and pushes up tightly on upper and lower guide rail support, stud and square head adjusting bolt 26 cooperate and use and drive the up and down motion of the piece 25 of transferring to adjust the clearance between front and back The inclined adjusting block 25 is tightly pressed in the upper and lower guide rail brackets in the threaded hole at the outer side of the inclined adjusting block 25; upper and lower rail brackets front side is equipped with the keyway, be equipped with seven 27 of position keys in the keyway, the outside of the whole piece 25 of angular adjustment is equipped with limit stop 28, limit stop 28's preceding blank holder and the cooperation of the whole piece 25 of angular adjustment and compress tightly the whole piece 25 of angular adjustment, limit stop 28's preceding blank holder inboard is equipped with three intervals and equals and is used for adjusting guide rail clearance and seven 27 complex keyways of position key, the vertical rectangular hole that passes limit stop 28 front side with outer hex bolts and elastic washer fixes limit stop 28 on upper and lower rail brackets, the unthreaded hole that passes limit stop 28's side blank holder with outer hex bolts and elastic washer is fixed in the threaded hole of the whole piece 25 of angular adjustment.
And a lubricating hole 29 is formed in the inclined adjusting block 25 and used for injecting lubricating oil between the inclined adjusting block 25 and the copper guide rail plate 11.
The method for adjusting the clearance comprises the following steps:
when the die forging press is used for a period of time, the guide rail is continuously worn to cause the guide rail clearance and the slide block running precision to exceed the allowable value, further the product quality is influenced to cause waste products, and the guide rail clearance is required to be immediately readjusted. When the total gap between the left and right guide rails exceeds the designed gap by about 0.3mm, the precision needs to be recovered by reducing the gap between the copper guide rail plate 11 and the slide block guide rail on the front adjusting wedge 12 and the rear adjusting wedge 13. The upper parts and the lower parts of the front adjusting wedge 12 and the rear adjusting wedge 13 are respectively provided with three key slots with equal distance, and the distance is the distance corresponding to a right-angle side when the hypotenuse is 0.15mm and the inclination is 1:20 according to the trigonometric function relation. Firstly, the bolts and the elastic washers of the upper and lower fixed check rings of the front adjusting wedge 12 and the rear adjusting wedge 13 are disassembled, the positioning key IV 17 arranged in the first-gear key groove is taken out, the long outer hexagon bolt is unscrewed, then the outer hexagon bolt and the hexagon nut outside the rear adjusting bolt 15 with the hole and the front adjusting bolt 16 with the hole are loosened, the rear adjusting bolt 15 with the hole and the front adjusting bolt 16 with the hole drive the rear adjusting wedge 13 and the front adjusting wedge 12 to move inwards, when the second-gear key groove on the rear adjusting wedge 13 and the front adjusting wedge 12 is overlapped with the vertical key groove of the frame, the key positioning key IV 17 is placed into the key groove and the check rings are fixed by the bolts and the elastic washers, then the outer hexagon bolt and the hexagon nut outside the rear adjusting bolt 15 with the hole and the front adjusting bolt 16 with the hole are screwed, and the gap adjustment of the left and right guide rails.
When the total front-rear guide gap exceeds the design gap by about 0.3mm, the accuracy needs to be restored by reducing the gap between the front copper guide plate 22 on the skew adjustment block 25 and the slider guide. Firstly, loosening the outer hexagon bolts of the inclined adjusting block 25 fixed on the outer sides of the upper guide rail support 21 and the lower guide rail support 22, then loosening the outer hexagon bolts on the outer portion of the limit stop 28 and loosening the hexagon nuts on the square head adjusting bolts 26, taking out the positioning key seven 27 from the side, then slowly and reversely rotating the square head adjusting bolts 26 to enable the inclined adjusting block 25 in the upper guide rail support 21 to move downwards and enable the inclined adjusting block 25 in the lower guide rail support 22 to move upwards, arranging three equidistant horizontal key grooves on the inner side of the limit stop 28, wherein the distance is the distance corresponding to a right-angled side when the inclined side is 0.15mm according to the trigonometric function relation and the inclination is 1:20, when the second horizontal key groove moved to the limit stop 28 is overlapped with the key groove on the guide rail support, tightly screwing the outer hexagon bolts on the outer portion of the limit stop, then putting the positioning key seven 27 from the side, and then tightly screwing the outer hexagon bolts on the outer portions of the upper guide rail support, The hexagon nut on the square head adjusting bolt 26 completes the adjustment of the front and rear guide rail clearance, and the guide rail clearance can be ensured to meet the design requirement through simple adjustment, so that the time and the labor are saved.
The structure has the advantages that: the unbalance loading and the lateral shearing force of the lower guide rail bracket 22 at the bottom dead point are the largest, so that the copper guide rail plate 11 in the lower guide rail bracket 22 is worn faster than that of the upper guide rail bracket, when the abrasion is serious, only the lower copper guide rail plate 11 needs to be replaced, and the maintenance and use cost is saved. Adopt the mode of the whole piece 25 extrusion regulation clearance of transfers to one side to adjust conveniently, guide rail and regulation wedge can receive great lateral force influence when the slider is at bottom dead center, cause the outside extrusion of the whole piece 25 of transferring to one side, adopt seven 27 independent locating keys to bear lateral shear force and unbalance loading, stability is very reliable, can not cause the stud of fixed whole piece 25 of transferring to one side, outer hex bolts not hard up or the fracture departure takes place serious personal safety accident. Because the hardness of the limit stop 28, the upper guide rail bracket 21 and the lower guide rail bracket 22 is higher than that of the seven 27 positioning keys, if the lower dead point is overloaded for use or has serious unbalance loading and the like, only the inclined adjusting block 25 is forced to drive the limit stop 28 to move upwards to cause the seven 27 positioning keys to be damaged, but the limit stop 28 cannot be damaged, or the guide rail bracket is forced to move upwards to cause the seven 27 positioning keys to be extruded and deformed, at the moment, only the seven 27 positioning keys are required to be replaced, the production can be continued after the adjustment is finished, the precision is not influenced, the maintenance time of a client is saved, and the use cost of the client is reduced.
The guide rail clearance adjustment is simple and convenient, the adjustment of the clearance can be simply completed without professionals and equipment, and the adjusted clearance can be ensured to meet the design requirement, the three-gear key groove adjustable three-time clearance is arranged on the rear adjusting wedge, the front adjusting wedge and the limit stop, when the clearance exceeds 0.3mm after the machine tool continues to operate for a period after three times of adjustment, the abrasion loss of the copper guide rail plate is too large and cannot meet the precision requirement, only the standard copper guide rail plate needs to be simply replaced, then the adjustment is started from one gear again, the forging machine has the advantages of being simple in adjustment, convenient to replace, good in interchangeability and the like, the rack is good in rigidity, high in strength, high in unbalance loading resistance, the precision of the equipment is greatly improved, and the high quality requirement of a forging piece is better met.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (7)
1. The utility model provides a precision hot die forging press anti unbalance loading device which characterized in that: the method comprises the following steps:
the frame is of a symmetrical structure of an integral cast steel box type frame, a plurality of transverse connecting rib plates are cast at the rear side of the frame, and the left frame and the right frame at the rear side are connected into a whole; the left side and the right side of the front side of the rack are provided with processing surfaces, a plurality of vertical key grooves are arranged on the processing surfaces, positioning keys I are arranged in the vertical key grooves, a plurality of transverse connecting plates which are symmetrical to the transverse connecting rib plates are arranged on the front side of the rack at intervals up and down, the vertical key grooves which are the same as the position of the rack are arranged on the transverse connecting plates, the transverse connecting plates are fixed on the rack through bolts, the left rack and the right rack on the front side are connected into a whole, and the rack is integrally formed;
the working table plate is fixedly arranged on the rack through bolts, a plurality of key grooves are machined in the rack at the bottom of the working table plate, positioning keys II are arranged in the key grooves, and key grooves are formed in corresponding positions of the plane at the bottom of the working table plate;
the sliding block body is of an integral cast steel structure, long octahedral guide rails are machined on the sliding block body, two guide rails are arranged on each face of the sliding block body, the guide rails on the front side, the right side and the rear side are straight guide rails of 90 degrees, inclined guide rails are arranged in front of and behind the left side, two copper guide rail plates fixed by copper screws are respectively arranged on the right side and the rear side of the inside of the rack corresponding to the right side and the rear side of the sliding block body, a left-right gap adjusting mechanism is arranged on the left side of the inside of the rack corresponding to the front-rear inclined guide rails on the left side of the sliding block body, and a front-rear gap adjusting mechanism is arranged on;
the left and right gap adjusting mechanism comprises a front adjusting wedge iron and a rear adjusting wedge iron which are arranged at the front and rear of the left side of the rack, copper guide rail plates fixed by copper screws are respectively arranged at the inner sides of the front adjusting wedge iron and the rear adjusting wedge iron, and a third positioning key fixed in a horizontal key groove of a front backing plate and a rear backing plate of the rack by screws is respectively arranged in a horizontal key groove at the outer side; a threaded through hole is formed in the bracket on the rear side of the rack, a rear adjusting bolt with a hole and a through hole in the middle is arranged in the threaded through hole, the tail plane of the rear adjusting bolt with the hole is tightly propped against the outer plane of the rear adjusting wedge, and an outer hexagon bolt penetrates through an elastic washer and the through hole in the middle of the rear adjusting bolt and is arranged in the threaded hole outside the rear adjusting wedge; the front side of the rack is provided with a threaded through hole, a front adjusting bolt with a hole is arranged in the threaded through hole, the middle of the front adjusting bolt with the hole is a through hole, the tail plane of the front adjusting bolt with the hole is tightly propped against the outer plane of the front adjusting wedge, and an outer hexagon bolt penetrates through an elastic washer and the middle of the front adjusting bolt with the hole and is arranged in the threaded hole outside the front adjusting wedge.
2. The eccentric load resisting device of the precision hot die forging press as claimed in claim 1, wherein: and a fourth positioning key is respectively arranged in the vertical key grooves at the upper part and the lower part of the front adjusting wedge iron and the rear adjusting wedge iron, and the fourth positioning key is fixed through a bolt, an elastic washer and a check ring.
3. The eccentric load resisting device of the precision hot die forging press as claimed in claim 1, wherein: a plurality of transverse T-shaped guide grooves are formed in the front adjusting wedge and the rear adjusting wedge, T-shaped pressing blocks with threaded holes are arranged in the T-shaped guide grooves, long outer hexagonal bolts penetrate through the elastic washers and the left side unthreaded holes of the rack and are fixed in the threaded holes of the T-shaped pressing blocks, and the front adjusting wedge and the rear adjusting wedge can move back and forth along the T-shaped pressing blocks.
4. The eccentric load resisting device of the precision hot die forging press as claimed in claim 1, wherein: the front-back clearance adjusting mechanism comprises an upper guide rail bracket and a lower guide rail bracket which are arranged on the front side of the rack, a horizontal positioning key five and a vertical positioning key six are arranged between the upper guide rail bracket and the rack, and a horizontal positioning key five and a vertical positioning key six are arranged between the lower guide rail bracket and the rack; go up the inside whole piece of transferring to one side of guide rail bracket and lower guide rail bracket, go up the inside whole piece of transferring to one side of guide rail bracket adjustment head up, the inside whole piece of transferring to one side of lower guide rail bracket adjustment head is turned over the dress downwards, and the whole inboard copper guide rail board that is equipped with the copper screw fixation of transferring to one side.
5. The eccentric load resisting device of the precision hot die forging press as claimed in claim 4, wherein: the utility model discloses a lead screw, including the inclined adjusting block, the inclined adjusting block is equipped with about the outside rectangular unthreaded hole of two departments, a middle screw thread through-hole, two stud one end are passed the outside rectangular unthreaded hole of inclined adjusting block and are fixed in the outer threaded hole of upper and lower guide rail support, the other end is fixed with two hexagon nuts, the square head adjusting bolt who is equipped with hexagon nut screws in advance behind the screw thread through-hole in the middle of the outside of inclined adjusting block tightly on upper and lower guide rail support, stud and square head adjusting bolt cooperation use drive inclined adjusting block up-and-down motion adjust the inboard copper guide rail board of inclined adjusting and the clearance between the slider, pass the rectangular unthreaded hole of upper and lower guide rail support front side through outer hexagon bolt and elastic washer and turn round tightly in the threaded hole in the inclined adjusting block outside, compress tightly the inclined adjusting block in.
6. The eccentric load resisting device of the precision hot die forging press as claimed in claim 5, wherein: the upper and lower guide rail support front side is equipped with the keyway, be equipped with navigation key seven in the keyway, the outside of angular adjustment piece is equipped with limit stop, limit stop's preceding blank pressing and angular adjustment piece cooperation and compress tightly the angular adjustment piece, limit stop's preceding blank pressing inboard is equipped with three intervals and equals and be used for adjusting guide rail clearance and seven complex keyways of navigation key, pass the vertical rectangular hole of limit stop front side with outer hexagon bolt and elastic washer and fix limit stop on upper and lower guide rail support, pass the unthreaded hole of limit stop's side blank pressing with outer hexagon bolt and elastic washer and fix in the threaded hole of angular adjustment piece.
7. The eccentric load resisting device of the precision hot die forging press as claimed in claim 4, wherein: and a lubricating hole is formed in the inclined adjusting block and used for injecting lubricating oil between the inclined adjusting block and the copper guide rail plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911310308.5A CN111036819B (en) | 2019-12-18 | 2019-12-18 | Anti unbalance loading device of precision hot die forging press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911310308.5A CN111036819B (en) | 2019-12-18 | 2019-12-18 | Anti unbalance loading device of precision hot die forging press |
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| Publication Number | Publication Date |
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| CN111036819A CN111036819A (en) | 2020-04-21 |
| CN111036819B true CN111036819B (en) | 2020-08-21 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2716023A1 (en) * | 1977-04-09 | 1978-10-12 | Georg Fellner | QUICK CLAMPING TOOL FOR FORGING PRESSES |
| RU2242322C1 (en) * | 2003-04-16 | 2004-12-20 | Открытое Акционерное Общество "Тяжпрессмаш" | Four-striker forging machine |
| CN201249533Y (en) * | 2008-05-26 | 2009-06-03 | 扬州锻压机床集团有限公司 | Guiding device of press ram |
| CN202986155U (en) * | 2012-12-07 | 2013-06-12 | 江苏扬力集团有限公司 | Regulating structure for resisting unbalanced load of press body guide rail |
| CN205341769U (en) * | 2016-01-19 | 2016-06-29 | 湖州机床厂有限公司 | Split type multipleram forging hydraulic press |
| CN108906968A (en) * | 2018-07-26 | 2018-11-30 | 山东金辰机械股份有限公司 | A kind of slider guide and precision adjusting structure suitable for hot dieing out press |
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Effective date of registration: 20230915 Address after: No.59 Xingye Road, Rongcheng City, Weihai City, Shandong Province, 264300 Patentee after: RONGCHENG HUADONG METAL-FORMING MACHINERY CO.,LTD. Address before: No.59 Xingye Road, Rongcheng City, Weihai City, Shandong Province, 264300 Patentee before: RONGCHENG HUADONG METAL-FORMING MACHINERY CO.,LTD. Patentee before: Jiang Yuanmao Patentee before: Zhang Kaishu |
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