CN113290189A - Hot die forging lever type heavy-load forging extrusion force automatic and accurate regulation and control device and method - Google Patents
Hot die forging lever type heavy-load forging extrusion force automatic and accurate regulation and control device and method Download PDFInfo
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- CN113290189A CN113290189A CN202110566491.6A CN202110566491A CN113290189A CN 113290189 A CN113290189 A CN 113290189A CN 202110566491 A CN202110566491 A CN 202110566491A CN 113290189 A CN113290189 A CN 113290189A
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- 238000005242 forging Methods 0.000 title claims abstract description 76
- 238000001125 extrusion Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052802 copper Inorganic materials 0.000 claims abstract description 28
- 239000010949 copper Substances 0.000 claims abstract description 28
- 238000003825 pressing Methods 0.000 claims description 29
- 230000007246 mechanism Effects 0.000 claims description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 230000001360 synchronised effect Effects 0.000 claims description 18
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 5
- 210000004907 gland Anatomy 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 241001275902 Parabramis pekinensis Species 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 7
- 241000227287 Elliottia pyroliflora Species 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development 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
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/20—Control devices specially adapted to forging presses not restricted to one of the preceding subgroups
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention relates to the high-end equipment manufacturing industry, in particular to a hot die forging lever type heavy-load forging extrusion force automatic accurate regulation and control device and a method, wherein the device comprises a lever, a guide rail, a heavy-load-resistant sliding support beam, a lever fulcrum seat, a power unit and a locking unit, wherein a fulcrum sliding groove is formed in the middle of the lever, and a self-lubricating copper guide rail sleeve is arranged in the fulcrum sliding groove; the two ends of the anti-heavy load sliding support beam are rotatably connected with the lever fulcrum seat, the middle part of the anti-heavy load sliding support beam is in surface contact sliding connection with the self-lubricating copper guide rail sleeve, and the upper end of the lever fulcrum seat is connected with the guide rail; the power unit drives the lever fulcrum seat to move along the guide rail and the fulcrum sliding groove; the locking unit locks the lever fulcrum seat on the guide rail. On the basis of good synchronism, symmetrical balance and large ejection force of the downward forging and extruding force of the lever type machinery, the efficiency, the ejection force (improved by more than 5 times compared with the traditional technology) and the stability are effectively improved, the automatic control requirements of precise multi-station hot die forging and automatic line net and near forming processing are met, and the effect of automatically and precisely adjusting and controlling the heavy-load forging and extruding force is achieved.
Description
The technical field is as follows:
the invention relates to the technical field of high-end equipment manufacturing industry, in particular to a hot die forging lever type heavy-load forging extrusion force automatic and accurate regulating and controlling device and method.
Background art:
a forging mechanical press generally adopts a lower ejection device, and the traditional mechanical lower ejection device has a cam type and air cushion type technical structure, but the technical structure has the technical problems of insufficient ejection force, fixed stroke at a certain numerical value and the like. Therefore, the forging press can only meet the application of general forging lower ejection, restricts the wide application of forging mechanical presses, and particularly cannot meet the requirement of hot die forging (multi-station) heavy-load forging extrusion force. Aiming at the technical problems of the existing mechanical lower material ejecting device, the company creatively develops two novel technical structures of a rack and pinion type mechanical lower material ejecting device (publication number: CN107081401B) and a lever type mechanical lower material ejecting device (publication number: CN107214284B, the specific structure is shown in figure 13), the lever type mechanical lower material ejecting device comprises an upper pull rod, an adjusting nut, a lower pull rod, a pull rod joint, a lever and a material ejecting seat which are sequentially connected, wherein a lever fulcrum seat is arranged in the middle of the lever, the lever fulcrum seat is fastened at the bottom of a machine body, the upper pull rod is connected with the lower pull rod through the adjusting nut, and the technical scheme is detailed in the specific content of the patent specification. The research and development of two kinds of novel technical structure have tentatively solved some technological problems, and especially liftout device has good, the symmetry balanced of synchronism, ejection force is big under the lever machinery, simple structure, compactness, mechanical efficiency height, low in manufacturing cost, easy maintenance, green energy-conserving class of technical effect.
However, in the practical application process, it is still found that there is a deep technical problem to be urgently needed to further research and solve the technical structure, the lower ejecting device of the lever type machine is arranged in a pit below the equipment foundation, when the swaging force needs to be adjusted, namely, the position of the fulcrum seat of the lever on the lever needs to be adjusted, an operator needs to disassemble the protective cover plate of the foundation to enter the pit for operation during adjustment, the weight of the parts of the lower ejecting device of the adjusting lever type machine reaches several tons, the space in the pit is very narrow and cannot use lifting equipment, the operator needs to disassemble and assemble parts at the head, calculate and measure the moving position of the fulcrum seat of the lever, and repeatedly verify the moving position after debugging for a plurality of times for a long time, so that the adjustment of the swaging force is difficult to be completed manually and the adjustment precision cannot be guaranteed. In addition, along with the popularization and application of automatic wiring and intelligent control technology in the metal forming equipment industry and the complex change of the processing technology of special-shaped precision forgings, the forging and extruding force is required to be adjusted frequently and automatically and accurately. And the actual requirement of heavy-load forging extrusion force of hot die forging is also provided to meet the requirement of the heavy-load lower jacking force (which is improved by more than 5 times compared with the traditional technology) of multi-station die forging. Therefore, a special technical structural scheme is urgently needed to be researched and developed to solve the deep technical problems that the manual adjustment of the lever forging and extruding force of the lever type mechanical lower material ejecting device is difficult to realize, inaccurate, low in efficiency, insufficient in heavy-load forging and extruding force and poor in stability, and cannot meet the requirements of automation and intelligent production lines and special-shaped precision die forging metal forming control.
The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.
The invention content is as follows:
the invention aims to solve the problems in the prior art, provides the automatic and accurate regulation and control device and method for the lever type heavy-load forging and extruding force of the hot die forging, has reasonable structural design and high positioning accuracy of the lever fulcrum seat, realizes the automatic regulation of the heavy-load forging and extruding force and the accurate and controllable regulation of the forging and extruding force of the multi-station die forging, and improves the working efficiency of equipment, and the jacking force and the stability under heavy load.
The invention adopts the following technical scheme to realize the purpose:
automatic accurate regulation and control device of extrusion force is forged to hot die forging lever heavy load, includes:
the middle part of the lever is provided with a fulcrum sliding chute along the length direction of the lever, and a self-lubricating copper guide rail sleeve is arranged in the fulcrum sliding chute;
the guide rail is arranged at the bottom of the machine body;
the upper end of the lever fulcrum seat is connected with the guide rail to form a movable guide rail pair, the lower end of the lever fulcrum seat is rotatably provided with a heavy-load-resistant sliding support beam, the middle part of the heavy-load-resistant sliding support beam is arranged in the self-lubricating copper guide rail sleeve, and the heavy-load-resistant sliding support beam is in surface contact sliding connection with the self-lubricating copper guide rail sleeve;
the power unit is used for driving the lever fulcrum seat to accurately move along the guide rail and the fulcrum sliding groove;
and the locking unit is used for locking and fixing the lever fulcrum seat on the guide rail.
The two sides of the lower end of the lever fulcrum seat are respectively provided with a split self-lubricating copper tile, the self-lubricating copper tiles are installed in the lever fulcrum seat through tile covers, and the anti-heavy-load sliding support beam is rotatably arranged in the self-lubricating copper tiles;
or, mounting holes are respectively formed in two sides of the lower end of the lever fulcrum seat, a self-lubricating copper sleeve is arranged in each mounting hole, and the anti-heavy-load sliding support beam is arranged in each self-lubricating copper sleeve in a rotating mode.
The anti heavy-load supporting beam comprises a flat body, rotating shafts are arranged at two ends of the flat body respectively, the flat body is arranged in the self-lubricating copper guide rail sleeve to realize surface contact sliding, and the rotating shafts are rotatably arranged in the lever fulcrum seats.
The fuselage bottom interval is equipped with two the guide rail, and the correspondence the symmetry is equipped with two guide rail recesses on the lever fulcrum seat, the guide rail sets up in the guide rail recess, the guide rail outside is equipped with the recess, be equipped with the guide rail clamp plate in the recess, the guide rail clamp plate through a plurality of foraminiferous locking bolt A with the lever fulcrum seat is connected, be equipped with the guide rail board between guide rail clamp plate and the guide rail and between the guide rail and the lever fulcrum seat respectively, be equipped with the adjustment wedge between guide rail and the lever fulcrum seat.
The guide rail pressing plate is provided with a locking threaded hole A, the corresponding lever fulcrum seat is provided with a unthreaded hole A, the locking bolt A with the hole penetrates through the unthreaded hole A to be connected with the locking threaded hole A, and two or more adjacent locking bolts A with the hole are connected and tightened through an iron wire A.
The locking unit comprises a locking pressing block, a slotted hole is formed in the middle of the guide rail pressing plate, the locking pressing block is arranged in the slotted hole, a pneumatic clamping mechanism is arranged on the lever fulcrum seat, and the pneumatic clamping mechanism is connected with the locking pressing block.
The pneumatic clamping mechanism comprises a loosening cylinder, the loosening cylinder is connected with the locking pressing block, a clamping disc spring is arranged between the loosening cylinder and the lever fulcrum seat, and the loosening cylinder is connected with the PLC.
The power unit comprises a servo motor and a ball screw, the ball screw is arranged on a lever fulcrum seat, a ball screw is arranged on the ball screw, bearings, bearing glands and bearing seats are arranged at two ends of the ball screw respectively, the bearing seats are installed at the bottom of the machine body, a synchronous belt pulley is arranged at one end of the ball screw, a transmission synchronous belt pulley is arranged on the servo motor, a synchronous toothed belt is arranged between the transmission synchronous belt pulley and the synchronous belt pulley, and the servo motor is connected with the PLC.
The servo motor is a double-shaft servo motor, and the double-shaft servo motor drives the two ball screws to rotate simultaneously.
One end of the lever is connected with the ejection seat, the other end of the lever is connected with a pull rod joint, the pull rod joint is connected with a lower pull rod, the lower pull rod is connected with an upper pull rod through a pre-tightening anti-loosening mechanism, the upper pull rod is connected with a sliding block, the pre-tightening anti-loosening mechanism is fixedly arranged at the upper end of the lower pull rod or at the lower end of the upper pull rod, when the pre-tightening anti-loosening mechanism is fixedly arranged on the lower pull rod, an external thread is arranged on the upper pull rod, and when the pre-tightening anti-loosening mechanism is fixed on the upper pull rod, an external thread is arranged on the lower pull rod.
Pretension locking mechanism includes the control tube, be equipped with the regulation hole in the control tube, be equipped with the internal thread that matches with the external screw thread on the regulation hole, control tube one end is fixed on last pull rod or lower link, is equipped with a locking arch on the other end outer wall at least, the protruding middle part of locking is equipped with open slot A along control tube length direction, open slot A and regulation hole intercommunication, open slot A falls into locking portion A and locking portion B two parts with the locking arch, be equipped with a plurality of foraminiferous locking bolt B with locking portion A and locking portion B locking in the locking arch, foraminiferous locking bolt B connects through iron wire B and ties up tightly, the control tube outer wall radially is equipped with open slot B with locking protruding junction.
The locking part A is provided with an unthreaded hole B, the locking part B is provided with a locking threaded hole B, and the locking bolt B with the hole penetrates through the unthreaded hole B to be connected with the locking threaded hole B.
The outer wall of the adjusting pipe is symmetrically provided with two locking bulges.
The outer diameter of the adjusting pipe is R1The diameter of the internal thread is R2The depth of the open slot B penetrating into the adjusting pipe is L, and the L and the R are1And R2The size relationship of (A) is as follows:
the automatic and accurate regulation and control method of the hot die forging lever type heavy-load forging extrusion force comprises the following steps:
the method comprises the following steps: the lever fulcrum seat is designed into a movable structural form, the movement of the upper end and the lower end of the lever fulcrum seat is accurately guided, the power unit is automatically controlled by the PLC to drive the lever fulcrum seat and the anti-heavy-load sliding support beam to move together to change the position of the lever fulcrum, and the automatic and accurate regulation and control of heavy-load forging and extruding force are realized;
step two: the power unit is adopted to control the repeated positioning precision of the moving position of the lever fulcrum seat;
step three: and locking and positioning the lever fulcrum seat which is adjusted in place by adopting a locking unit.
By adopting the technical scheme, the invention can bring the following beneficial effects:
the transverse moving positions of the guide rail on the bottom of the machine body and the lever fulcrum seat on the anti-heavy-load sliding support beam are automatically and accurately adjusted, the length proportion of the lever force arm is changed, the heavy-load forging and extruding force is adjusted, and the lever fulcrum seat is locked and fixed after the position of the lever fulcrum seat is adjusted in place. Wherein the cooperation of lower guideway and anti heavy load slide not only can further improve lever fulcrum seat and remove the direction precision, adopts the face contact to lead moreover, improves the ability of anti heavy load, prolongs the life of this application structure. On the basis of the technical characteristics of good synchronism, symmetrical balance, large extrusion force, high mechanical conversion efficiency, environmental protection, energy conservation and the like of the lower ejection of the lever type machinery, the automatic control of the heavy-load forging extrusion force is realized, the adjustment accuracy is high, the problem of difficult manual adjustment is solved, the production efficiency of equipment, the ejection force under the heavy load (which is 5 times higher than that of the traditional technology), the stability and the product qualification rate are improved, the urgent requirements of hot die forging multi-station automation, intelligent production and precision die forging near-net forming processing control are met, and the effect of automatically adjusting and controlling the heavy-load forging force by hot die forging is achieved.
Description of the drawings:
FIG. 1 is a schematic structural view of a hot die forging lever type heavy-duty forging extrusion force automatic precise regulating device of the present invention;
FIG. 2 is a partial bottom view structural diagram of the automatic precise control device for hot die forging lever type heavy-duty forging force of the present invention;
FIG. 3 is a schematic structural view of the anti-overloading beam of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;
FIG. 6 is a cross-sectional view taken along line C-C of FIG. 2 in accordance with the present invention;
FIG. 7 is a cross-sectional view taken along line D-D of FIG. 2 in accordance with the present invention;
FIG. 8 is a schematic view of another connection structure of the anti-overloading supporting beam and the lever fulcrum seat of the present invention;
FIG. 9 is an enlarged view of a portion X of FIG. 1 in accordance with the present invention;
FIG. 10 is a sectional view taken along line E-E in FIG. 9;
FIG. 11 is a sectional view taken along line F-F in FIG. 9;
FIG. 12 is a schematic structural view of the pre-tightening anti-loosening mechanism of the present invention disposed on the lower drawbar;
FIG. 13 is a schematic structural view of a conventional lever-type mechanical lower ejector;
in the figure, 1, a lever, 2, a fulcrum chute, 3, a guide rail, 4, a machine body, 5, a lever fulcrum seat, 6, a movable guide rail pair, 7, a heavy-load-resistant sliding supporting beam, 701, a flat body, 702, a rotating shaft, 8, a power unit, 801, a servo motor, 802, a ball screw nut, 803, a ball screw, 804, a bearing, 805, a bearing gland, 806, a bearing seat, 807, a synchronous pulley, 808, a transmission synchronous pulley, 809, a synchronous toothed belt, 9, a locking unit, 901, a locking pressing block, 902, a slotted hole, 903, a releasing cylinder, 904, a clamping disc spring, 10, a self-lubricating copper tile, 11, a tile cover, 12, a mounting hole, 13, a self-lubricating copper sleeve, 14, a self-lubricating copper sleeve, 15, a guide rail groove, 16, a groove, 17, a guide rail pressing plate, 18, a holed locking bolt A, 19, a guide plate, 20, an adjusting inclined iron, 21, a locking threaded hole A, 22, 23. iron wires A, 24, a material ejecting seat, 25, a pull rod joint, 26, a lower pull rod, 27, a pre-tightening anti-loosening mechanism, 2701, an adjusting pipe, 2702, an adjusting hole, 2703, internal threads, 2704, a locking protrusion, 2705, an open groove A, 2706, a locking part A, 2707, a locking part B, 2708, a locking bolt B with a hole, 2709, an iron wire B, 2710, an open groove B, 2711, a unthreaded hole B, 2712, a locking threaded hole B, 28, an upper pull rod, 29, a sliding block, 30, external threads, 31, an adjusting nut, 32, a locking nut, 33, an existing lever fulcrum seat, 34 and an existing lever.
The specific implementation mode is as follows:
in order to more clearly explain the overall concept of the invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.
In the present invention, the terms "central", "axial", "radial", "a", "B", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the location of the indicated technical feature.
In the present invention, unless otherwise expressly stated or limited, the terms "provided", "disposed", "connected", "communicating", and the like are to be construed broadly, e.g., "provided" and "disposed" may be fixedly attached, detachably attached, or integrally attached; "connected" may be directly connected or may be connected through an intermediate medium. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 12, the automatic and precise regulation and control device for the hot die forging lever type heavy-load forging force comprises:
the middle part of the lever 1 is provided with a fulcrum sliding groove 2 along the length direction of the lever 1, and a self-lubricating copper guide rail sleeve 14 is arranged in the fulcrum sliding groove;
the guide rail 3 is arranged at the bottom of the machine body 4;
the upper end of the lever fulcrum seat 5 is connected with the guide rail 3 to form a movable guide rail pair 6, the lower end of the lever fulcrum seat 5 is rotatably provided with a heavy-load-resistant sliding support beam 7, the middle part of the heavy-load-resistant sliding support beam 7 is arranged in the self-lubricating copper guide rail sleeve 14, and the heavy-load-resistant sliding support beam 7 is in surface contact sliding connection with the fulcrum sliding groove 2;
the power unit 8 is used for driving the lever fulcrum seat 5 to accurately move along the guide rail 3 and the fulcrum sliding groove 2;
and the locking unit 9 is used for locking and fixing the lever fulcrum seat 5 on the guide rail 3. Through set up fulcrum spout 2 in the middle part of lever 1 and set up 3 realization double-deck guide rails structures of mutually supporting in the fuselage bottom, fulcrum spout 2 adopts the guide rail special structure of face contact with anti heavy load slip corbel 7, realize that lever fulcrum seat 5 can bear the heavy load and remove accurately down, realize carrying out accurate drive control to lever fulcrum seat 5 displacement through setting up the realization that power pack 8 can automize, will remove the lever fulcrum seat 5 that targets in place through locking unit 9 and lock, ensure that the fulcrum position can not change in the follow-up use. The automatic control of the forging and extruding force is realized, the adjustment accuracy is high, the problem of difficulty in manual adjustment is solved, the working efficiency of equipment, the jacking force under heavy load and the product percent of pass are improved, the urgent requirements of automatic and intelligent production line and precise forge piece forming control of precise forging and extruding (or multi-station forging) are met, and the effect of automatically adjusting the forging and extruding force of a forging press is achieved.
The two sides of the lower end of the lever fulcrum seat 5 are respectively provided with a split self-lubricating copper tile 10, the self-lubricating copper tiles 10 are installed in the lever fulcrum seat 5 through tile covers 11, and the anti-heavy-load sliding support beam 7 is rotatably arranged in the self-lubricating copper tiles 10; when the diameter of the rotating shaft 702 part of the anti-heavy-load sliding support beam 7 is too large, the self-lubricating copper tiles 10 and the tile cover 11 are preferably adopted for rotating connection.
Or, as shown in fig. 8, the two sides of the lower end of the lever fulcrum seat 5 are respectively provided with the mounting holes 12, the self-lubricating copper bush 13 is arranged in the mounting holes 12, the anti-heavy-load sliding support beam 7 is rotatably arranged in the self-lubricating copper bush 13, and when the diameter of the rotating shaft 702 of the anti-heavy-load sliding support beam 7 is small, the structural form of the mounting holes 12 and the self-lubricating copper bush 13 is directly rotatably installed in the lever fulcrum seat 5.
The anti-heavy-load supporting beam 7 comprises a flat body 701, rotating shafts 702 are arranged at two ends of the flat body 701 respectively, the flat body 701 is arranged in the self-lubricating copper guide rail sleeve 14 to realize surface contact sliding, and the rotating shafts 702 are rotatably arranged in the lever fulcrum seats 5. The middle of the anti-heavy-load supporting beam is designed into a flat body 701 structure, the two ends of the anti-heavy-load supporting beam are designed into a structural form of a rotating shaft 702, the surface contact sliding with the supporting point sliding groove 2 can be met, the anti-heavy-load supporting beam is further convenient to rotate and connect with the lever supporting point seat 5, the self-lubricating copper guide rail sleeve 14 can be prevented from bearing heavy load and being abraded due to the surface contact sliding, and the bearing capacity and the stability are remarkably improved.
4 bottom intervals of fuselage are equipped with two guide rail 3, correspond the symmetry is equipped with two guide rail grooves 15 on the lever fulcrum seat 5, guide rail 3 sets up in guide rail groove 15, the guide rail 3 outside is equipped with recess 16, be equipped with guide rail clamp plate 17 in the recess 16, guide rail clamp plate 17 through a plurality of foraminiferous lock bolt A18 with lever fulcrum seat 5 is connected, be equipped with guide rail plate 19 between guide rail clamp plate 17 and the guide rail 3 and between the guide rail 3 and the lever fulcrum seat 5 respectively, be equipped with adjustment wedge 20 between guide rail 3 and the lever fulcrum seat 5. The adoption is with lever fulcrum seat 5 between two guide rails 3 between two placed in the middle to lead and remove, has stable in structure, atress is even, advantage such as the running accuracy is high, can set up ball screw 802 and ball 803 on lever fulcrum seat 5 between two guide rails 3 simultaneously, and the drive distribution is more even like this, ensures that lever fulcrum seat removes steadily smoothly.
The guide rail pressure plate 17 is provided with a locking threaded hole A21, the corresponding lever fulcrum seat 5 is provided with a unthreaded hole A22, the locking bolt A18 with holes penetrates through the unthreaded hole A22 to be connected with the locking threaded hole A21, and two or more adjacent locking bolts A18 with holes are connected and tightened through iron wires A23. The perforated locking bolt A18 can be connected and bound together through the iron wire A23, so that the perforated locking bolt A18 is effectively prevented from loosening, and the reliability of connection of the whole structure is ensured.
The locking unit 9 comprises a locking pressing block 901, a slotted hole 902 is formed in the middle of the guide rail pressing plate 17, the locking pressing block 901 is arranged in the slotted hole 902, and a pneumatic clamping mechanism is arranged on the lever fulcrum seat 5 and connected with the locking pressing block 901.
The pneumatic clamping mechanism comprises a loosening cylinder 903, the loosening cylinder 903 is connected with the locking pressing block 901, a clamping disc spring 904 is arranged between the loosening cylinder 903 and the lever fulcrum seat 5, and the loosening cylinder 903 is connected with the PLC. The structural characteristics of the guide rail pressing plate 17 are fully utilized, a slotted hole 902 is formed in the middle of the guide rail pressing plate 17, then the locking pressing block 901 is installed in the slotted hole 902 to realize that the locking pressing block 901, the guide rail pressing plate 13 and the lever fulcrum seat 5 are sequentially connected, the locking pressing block 901 is driven to be pressed towards the guide rail 3 under the action of clamping the disc spring 904, the lever fulcrum seat 5 is locked on the guide rail 3, when the lever fulcrum seat 5 needs to be moved, the loosening cylinder 903 acts to overcome the action of clamping the disc spring 904 to enable the locking pressing block 901 to be separated from the guide rail 3, then the servo motor 801 acts to drive the lever fulcrum seat 5 to move, after the lever fulcrum seat 5 is moved in place, the servo motor 801 stops working, the loosening cylinder 903 resets, and the clamping disc spring 904 acts to lock the lever fulcrum seat 5 on the guide rail 3.
The power unit 8 comprises a servo motor 801 and a ball screw 802, the ball screw 802 is arranged on the lever fulcrum seat 5, a ball screw 803 is arranged on the ball screw 802, two ends of the ball screw 803 are respectively provided with a bearing 804, a bearing gland 805 and a bearing seat 806, the bearing seat 806 is arranged at the bottom of the machine body 4, one end of the ball screw 803 is provided with a synchronous pulley 807, the servo motor 801 is provided with a transmission synchronous pulley 808, a synchronous toothed belt 809 is arranged between the transmission synchronous pulley 808 and the synchronous pulley 807, and the servo motor 801 is connected with a PLC controller. The moving distance of the lever fulcrum seat 5 is accurately controlled through belt transmission and lead screw transmission, and the forging force of the hot die forging press is automatically and accurately adjusted and controlled.
The servo motor 801 is a double-shaft servo motor, and the double-shaft servo motor drives two ball screws 903 to rotate at the same time. The adoption of the double-shaft servo motor can realize that one servo motor 801 synchronously adjusts the positions of the fulcrums of two levers 1 in the lever type mechanical lower ejection device, and further improves the adjustment precision and the synchronism. Of course, two servo motors may be used, each servo motor adjusting the position of the fulcrum of one lever 1.
One end of the lever 1 is connected with the ejection seat 24, the other end of the lever is connected with the pull rod joint 25, the pull rod joint 25 is connected with the lower pull rod 26, the lower pull rod 26 is connected with the upper pull rod 28 through the pre-tightening anti-loosening mechanism 27, the upper pull rod 28 is connected with the sliding block 29, the pre-tightening anti-loosening mechanism 27 is fixedly arranged at the upper end of the lower pull rod 26 or at the lower end of the upper pull rod 28, when the pre-tightening anti-loosening mechanism 27 is fixedly arranged on the lower pull rod 26, the upper pull rod 28 is provided with external threads 30, and when the pre-tightening anti-loosening mechanism 27 is fixed on the upper pull rod 28, the lower pull rod 26 is provided with the external threads 30.
The pre-tightening anti-loose mechanism 27 comprises an adjusting pipe 2701, an adjusting hole 2702 is arranged in the adjusting pipe 2701, an internal thread 2703 matched with an external thread 30 is arranged on the adjusting hole 2702, one end of the adjusting pipe 2701 is fixed on an upper pull rod 28 or a lower pull rod 26, at least one locking protrusion 2704 is arranged on the outer wall of the other end of the adjusting pipe 2701, an open groove A2705 is formed in the middle of the locking protrusion 2704 along the length direction of the adjusting pipe 2701, the open groove A2705 is communicated with the adjusting hole 2702, the locking protrusion 2704 is divided into a locking part A2706 and a locking part B2707 by the open groove A2705, a plurality of locking bolts B2708 with holes for locking the locking part A2706 and the locking part B2707 are arranged on the locking protrusion 4, the locking bolts B2708 with the holes are connected and bound tightly through an iron wire B2709, and a radial open groove B2710 is formed at the joint of the outer wall of the adjusting pipe 2701 and the locking protrusion 2704. Through the scheme that the pre-tightening anti-loosening mechanism replaces the traditional adjusting nut 31 and the traditional locking nut 32, not only can the die-filling height amount be adjusted, but also the metal elastic deformation principle is utilized, the continuous pre-tightening state of threaded connection can be kept through designing the open groove A2705 and the open groove B2710, the problem that threaded connection in the adjusting nut 31 and the locking nut 32 is loosened is effectively solved, and the technical problem that the loosening occurs under the impact force action of heavy load can be particularly solved.
The locking part A2706 is provided with an unthreaded hole B2711, the locking part B2707 is provided with a locking threaded hole B2712, and the locking bolt B2708 with the hole penetrates through the unthreaded hole B2711 to be connected with the locking threaded hole B2712.
Two locking protrusions 2704 are symmetrically arranged on the outer wall of the adjusting pipe 2701. The number of the locking protrusions 2704 can be selected according to the diameter of the internal thread, and generally 2 locking protrusions 2704 can meet the requirement.
The outer diameter of the adjusting pipe 2701 is R1The diameter of the internal thread 2703 is R2The depth of the open slot B2710 penetrating into the adjusting tube 2701 is L, and the L and the R are1And R2The size relationship of (A) is as follows:
the structural strength of the pre-tightening anti-loosening mechanism 27 is ensured while the pre-tightening anti-loosening of the threaded connection is realized.
The automatic and accurate regulation and control method of the hot die forging lever type heavy-load forging extrusion force comprises the following steps:
the method comprises the following steps: the lever fulcrum seat 5 is designed into a movable structural form, the movement of the upper end and the lower end of the lever fulcrum seat 5 is accurately guided, the power unit 8 is automatically controlled by the PLC to drive the lever fulcrum seat 5 and the anti-heavy-load sliding support beam 7 to move together to change the position of the lever fulcrum, and the automatic and accurate regulation and control of heavy-load forging force are realized;
step two: the power unit 8 is adopted to control the repeated positioning precision of the moving position of the lever fulcrum seat 5;
step three: and a locking unit 9 is adopted to lock and position the lever fulcrum seat 5 which is adjusted in place.
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 (10)
1. Automatic accurate regulation and control device of crowded power is forged to hot die forging lever heavy load, its characterized in that includes:
the middle part of the lever is provided with a fulcrum sliding chute along the length direction of the lever, and a self-lubricating copper guide rail sleeve is arranged in the fulcrum sliding chute;
the guide rail is arranged at the bottom of the machine body;
the upper end of the lever fulcrum seat is connected with the guide rail to form a movable guide rail pair, the lower end of the lever fulcrum seat is rotatably provided with a heavy-load-resistant sliding support beam, the middle part of the heavy-load-resistant sliding support beam is arranged in the self-lubricating copper guide rail sleeve, and the heavy-load-resistant sliding support beam is in surface contact sliding connection with the self-lubricating copper guide rail sleeve;
the power unit is used for driving the lever fulcrum seat to accurately move along the guide rail and the fulcrum sliding groove;
and the locking unit is used for locking and fixing the lever fulcrum seat on the guide rail.
2. The automatic and accurate regulation and control device of the hot die forging lever type heavy-load forging force as claimed in claim 1, wherein both sides of the lower end of the lever fulcrum seat are respectively provided with a split self-lubricating brasses, the self-lubricating brasses are installed in the lever fulcrum seat through a brash cover, and the anti-heavy-load sliding support beam is rotatably arranged in the self-lubricating brasses;
or, mounting holes are respectively formed in two sides of the lower end of the lever fulcrum seat, a self-lubricating copper sleeve is arranged in each mounting hole, and the anti-heavy-load sliding support beam is arranged in each self-lubricating copper sleeve in a rotating mode.
3. The automatic and accurate regulation and control device of the hot die forging lever type heavy-load forging force as claimed in claim 1 or 2, wherein the heavy-load resisting supporting beam comprises a flat body, rotating shafts are respectively arranged at two ends of the flat body, the flat body is arranged in a self-lubricating copper guide rail sleeve to realize surface contact sliding connection, and the rotating shafts are rotatably arranged in the lever fulcrum seat.
4. The automatic precise regulating and controlling device for the hot die forging lever type heavy-duty forging force as claimed in claim 3, it is characterized in that the bottom of the machine body is provided with two guide rails at intervals, two guide rail grooves are symmetrically arranged on the corresponding lever fulcrum seats, the guide rail is arranged in a guide rail groove, a groove is arranged on the outer side of the guide rail, a guide rail pressing plate is arranged in the groove, the guide rail pressing plate is connected with the lever fulcrum seat through a plurality of locking bolts A with holes, guide rail plates are respectively arranged between the guide rail pressing plate and the guide rail and between the guide rail and the lever fulcrum seat, an adjusting wedge is arranged between the guide rail and the lever fulcrum seat, a locking threaded hole A is arranged on the guide rail pressing plate, and the corresponding lever fulcrum seat is provided with an unthreaded hole A, the locking bolt A with the hole penetrates through the unthreaded hole A to be connected with the locking threaded hole A, and two or more adjacent locking bolts A with the hole are connected and tightened through an iron wire A.
5. The automatic and accurate regulation and control device of the hot die forging lever type heavy-load forging force as claimed in claim 1 or 4, wherein the locking unit comprises a locking pressing block, a slotted hole is formed in the middle of the guide rail pressing plate, the locking pressing block is arranged in the slotted hole, a pneumatic clamping mechanism is arranged on the lever fulcrum seat, and the pneumatic clamping mechanism is connected with the locking pressing block; the pneumatic clamping mechanism comprises a loosening cylinder, the loosening cylinder is connected with the locking pressing block, a clamping disc spring is arranged between the loosening cylinder and the lever fulcrum seat, and the loosening cylinder is connected with the PLC; the power unit comprises a servo motor and a ball screw, the ball screw is arranged on a lever fulcrum seat, a ball screw is arranged on the ball screw, bearings, bearing glands and bearing seats are arranged at two ends of the ball screw respectively, the bearing seats are installed at the bottom of the machine body, a synchronous belt pulley is arranged at one end of the ball screw, a transmission synchronous belt pulley is arranged on the servo motor, a synchronous toothed belt is arranged between the transmission synchronous belt pulley and the synchronous belt pulley, and the servo motor is connected with the PLC.
6. The automatic precise regulating and controlling device for the hot die forging lever type heavy-load forging force as claimed in claim 5, wherein the servo motor is a double-shaft servo motor, and the double-shaft servo motor drives two ball screws to rotate simultaneously.
7. The automatic and precise regulation and control device for the hot die forging lever type heavy-load forging force as claimed in claim 1 or 6, wherein one end of the lever is connected with the ejection seat, the other end of the lever is connected with a pull rod joint, the pull rod joint is connected with a lower pull rod, the lower pull rod is connected with an upper pull rod through a pre-tightening anti-loosening mechanism, the upper pull rod is connected with a slide block, the pre-tightening anti-loosening mechanism is fixedly arranged at the upper end of the lower pull rod or at the lower end of the upper pull rod, when the pre-tightening anti-loosening mechanism is fixedly arranged on the lower pull rod, an external thread is arranged on the upper pull rod, and when the pre-tightening anti-loosening mechanism is fixedly arranged on the upper pull rod, an external thread is arranged on the lower pull rod.
8. The automatic and precise regulation and control device for the hot die forging lever type heavy-duty forging force according to claim 7, wherein the pre-tightening and anti-loosening mechanism comprises an adjusting pipe, an adjusting hole is formed in the adjusting pipe, an internal thread matched with the external thread is formed on the adjusting hole, one end of the adjusting pipe is fixed on the upper pull rod or the lower pull rod, at least one locking protrusion is formed on the outer wall of the other end of the adjusting pipe, an open groove A is formed in the middle of the locking protrusion along the length direction of the adjusting pipe and communicated with the adjusting hole, the locking protrusion is divided into a locking portion A and a locking portion B by the open groove A, a plurality of locking bolts B with holes are formed in the locking protrusion and used for locking the locking portion A and the locking portion B, the locking bolts B with the holes are connected and tightened through iron wires B, an open groove B is radially formed at the joint of the outer wall of the adjusting pipe and the locking protrusion, and a light hole B is formed in the locking portion A, and the locking part B is provided with a locking threaded hole B, and the locking bolt B with the hole penetrates through the unthreaded hole B to be connected with the locking threaded hole B.
9. The automatic and precise regulating and controlling device for the hot die forging lever type heavy-load forging and extruding force as claimed in claim 8, wherein two locking protrusions are symmetrically arranged on the outer wall of the regulating pipe, and the outer diameter of the regulating pipe is R1The diameter of the internal thread is R2The depth of the open slot B penetrating into the adjusting pipe is L, and the L and the R are1And R2The size relationship of (A) is as follows:
10. the automatic and accurate regulation and control method for the hot die forging lever type heavy-load forging extrusion force is characterized by comprising the following steps of:
the method comprises the following steps: the lever fulcrum seat is designed into a movable structural form, the movement of the upper end and the lower end of the lever fulcrum seat is accurately guided, the power unit is automatically controlled by the PLC to drive the lever fulcrum seat and the anti-heavy-load sliding support beam to move together to change the position of the lever fulcrum, and the automatic and accurate regulation and control of heavy-load forging and extruding force are realized;
step two: the power unit is adopted to control the repeated positioning precision of the moving position of the lever fulcrum seat;
step three: and locking and positioning the lever fulcrum seat which is adjusted in place by adopting a locking unit.
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|---|---|---|---|
| CN202110566491.6A CN113290189B (en) | 2021-05-24 | 2021-05-24 | Hot die forging lever type heavy-load forging extrusion force automatic and accurate regulation and control device and method |
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| CN202110566491.6A CN113290189B (en) | 2021-05-24 | 2021-05-24 | Hot die forging lever type heavy-load forging extrusion force automatic and accurate regulation and control device and method |
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| CN211307461U (en) * | 2019-08-16 | 2020-08-21 | 罗子瞳 | Manual tabletting device |
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| CN2154137Y (en) * | 1991-08-21 | 1994-01-26 | 河南省安阳锻压设备厂 | Multi-position automatic press forging machine |
| JPH09285896A (en) * | 1996-04-23 | 1997-11-04 | Yoshiki Kogyo Kk | Vibration machining device |
| CN201088999Y (en) * | 2007-10-14 | 2008-07-23 | 申娟 | Combined frame type hot die forging press |
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| CN212884263U (en) * | 2020-08-05 | 2021-04-06 | 深圳市言果科技有限公司 | Small-size press is used in metalworking |
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| CN113290189B (en) | 2022-03-11 |
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Application publication date: 20210824 Assignee: Jiangsu Aoshi Forging Technology Co.,Ltd. Assignor: RONGCHENG HUADONG METAL-FORMING MACHINERY CO.,LTD. Contract record no.: X2022980005164 Denomination of invention: Automatic and accurate regulation device and method of hot die forging lever type heavy-duty forging extrusion force Granted publication date: 20220311 License type: Common License Record date: 20220506 |
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Application publication date: 20210824 Assignee: ZHEJIANG YIDUAN PRECISION MACHINERY CO.,LTD. Assignor: RONGCHENG HUADONG METAL-FORMING MACHINERY CO.,LTD. Contract record no.: X2022980005853 Denomination of invention: Automatic precise control device and method for hot die forging lever type heavy-duty forging extrusion force Granted publication date: 20220311 License type: Common License Record date: 20220523 |
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Denomination of invention: The lever type automatic precise control device and method of heavy load forging and extruding force for hot die forging Effective date of registration: 20220930 Granted publication date: 20220311 Pledgee: Weihai Commercial Bank Co.,Ltd. Yatou Sub branch Pledgor: RONGCHENG HUADONG METAL-FORMING MACHINERY CO.,LTD. Registration number: Y2022980017069 |
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Date of cancellation: 20230922 Granted publication date: 20220311 Pledgee: Weihai Commercial Bank Co.,Ltd. Yatou Sub branch Pledgor: RONGCHENG HUADONG METAL-FORMING MACHINERY CO.,LTD. Registration number: Y2022980017069 |
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Denomination of invention: Automatic and precise control device and method for hot die forging lever type heavy-duty forging and extrusion force Effective date of registration: 20230925 Granted publication date: 20220311 Pledgee: Weihai Commercial Bank Co.,Ltd. Yatou Sub branch Pledgor: RONGCHENG HUADONG METAL-FORMING MACHINERY CO.,LTD. Registration number: Y2023980058709 |