Precision forging equipment and method based on digital control of multi-station bottom ejection

Abstract

The present invention relates to high-end equipment, and specifically to precision forging equipment and methods for multi-station lower ejection based on digital control, including a plurality of through holes arranged on the multi-station lower die, a multi-station top crown connected to an adjusting screw being arranged directly below the multi-station top crown, and the position of the ejection being digitally controlled. The adjusting screw is provided with an electrical interlocking clamp, and its two sides are connected to the base to improve the resistance to heavy-load impact and reduce the impact of multi-station heavy-load impact. A balancing cylinder is arranged under the worktable to balance the servo drive torque and improve the digital control accuracy of the lower ejection. The above-mentioned integrated technical solution is combined with digital control to completely solve the processing problem of multiple sets of dies and multiple equipment for super-large cup rods of the same diameter but different lengths in the prior art, and achieves the die forging of a single equipment with the same diameter but different lengths and large specifications with one set of dies, saving equipment and die investment and die replacement time, improving production efficiency, and achieving the remarkable effect of digitally controlled multi-station heavy-load lower ejection forging (forging extrusion).

Description

Technical field:

[0001] The invention relates to the technical field of metal forming machine tool equipment, and in particular to multi-station bottom-top precision forging equipment and method based on digital control. Background technology:

[0002] For cup-stem forging parts, only the head needs to be forged (extruded) at high temperature, so there are many varieties of hot forged parts with the same diameter and different lengths, and the length-to-diameter ratio is very large. Fig.10 As shown in the figure, it is a schematic diagram of the hot forging of the head of a cup-rod type forging part with a large length-to-diameter ratio. The existing technology is that each hot forging part length L specification requires a set of independent molds, which results in a relatively high mold investment cost for the production enterprise, and the corresponding molds need to be frequently replaced according to the hot forging parts of different lengths during the production process. In addition, the hot forging of cup-rod parts requires multiple processes. The existing technology uses multiple forging equipment in line to complete it, which seriously affects its production efficiency and has become a prominent technical problem that has long plagued hot forging manufacturing companies engaged in this field to improve quality, increase efficiency and reduce costs. Especially in recent years, the global green energy industry, wind power and offshore equipment and other strategic emerging industries have risen rapidly. As an industrial power in the world's manufacturing base, my country has promoted the application of extreme manufacturing equipment. In particular, for the high-efficiency hot forging of the head of cup-rod type hot forging parts with a length-to-diameter ratio of several times, it is proposed that how to innovate equipment to reduce the number of equipment and molds used, reduce the manufacturing cost of a single set of molds, and improve production efficiency. An urgent need is put forward.

[0003] With the widespread application of robot technology, manufacturers have innovatively proposed to complete multiple hot forging processes on the same forging press with one die clamping to complete multiple hot forging processes, reduce the initial temperature of hot forgings, improve production efficiency, reduce production line investment and floor space, reduce costs and increase efficiency, and enhance the core competitiveness of products. Equipment manufacturing companies are urgently needed to further innovate technical solutions and conduct in-depth practical research and breakthroughs. The global extreme manufacturing of industrial equipment has risen rapidly, and the demand for multi-station hot forging to reduce costs and improve efficiency has gradually reached a consensus. Therefore, it is necessary to carry out innovative research and development of efficient and green precision multi-station forging (forging extrusion) metal hot forming basic equipment application technology.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Summary of the invention:

[0005] The purpose of the present invention is to solve the problems existing in the prior art, provide precision forging equipment and methods based on digital control multi-station bottom ejection, solve the problem that multiple sets of molds are needed for hot forging forming processing of cup rod heads with the same diameter and different lengths with several times the aspect ratio, and reduce the time of frequent mold replacement in the production process; highlight the problem that multiple hot forging processes of cup rod parts need to be completed on multiple forging equipment in line, and realize all forming processes on only one digital control multi-station forging (forging and extrusion) equipment, which greatly saves equipment investment, plant area and number of personnel; solve the problems related to the rigidity of the base of the hot forging fuselage workbench under large-scale heavy loads, the impact strength against heavy loads, the increased manufacturing cost and the huge vibration of heavy load impact, and improve the industrial production efficiency. At the same time, it also provides industrial basic mother machine equipment guarantee for the industrial chain supply chain of digital production of intelligent precision multi-station equipment manufacturing in the industrial digital era.

[0006] The present invention achieves the above-mentioned purpose by adopting the following technical solutions:

[0007] The digitally controlled multi-station lower ejector precision forging equipment comprises a fuselage base, a workbench is provided at the upper end of the fuselage base, a multi-station lower mold is provided on the workbench, a plurality of mold cavities are provided on the multi-station lower mold, and the lower end of the mold cavity is provided as a through hole, a multi-station top crown is provided directly below the multi-station lower mold, and the multi-station top crown is vertically slidably arranged on the fuselage base, a floor-standing mounting support is provided on the foundation below the fuselage base, a worm gear is rotatably provided on the mounting support, the worm gear is connected to a worm, and the worm is connected to a gear reduction mechanism, and the An adjusting screw is threadedly connected to the center of the worm gear, and the upper end of the adjusting screw is connected to the multi-station crown. The lower part of the adjusting screw is a threaded section, and the upper part is an optical axis section. Two balancing cylinders are symmetrically arranged between the work table and the multi-station crown. An automatic clamping mechanism for locking the adjusting screw is arranged at the lower end of the fuselage base, a guiding mechanism for guiding the adjusting screw is arranged at the upper end of the mounting support, and a stroke limiting mechanism for limiting the lifting and lowering of the adjusting screw is arranged at the lower end of the mounting support. The worm gear rotates to drive the adjusting screw to lift, and the lower end of the forging passes through the through hole to act on the upper end of the multi-station crown.

[0008] The workbench plate is fixedly connected to the fuselage base by a plurality of screws and keys.

[0009] A rectangular groove A is provided on the inner wall of one side of the fuselage base, a guide plate A is fixedly provided in the rectangular groove A, a rectangular guide rail A is provided on the guide rail plate A, a rectangular groove B is provided on the inner wall of the other side of the fuselage base, a guide plate B is movably provided in the rectangular groove B, a rectangular guide rail B is provided at the inner end of the guide plate B, an adjustment bolt is provided at the outer end, an adjustment threaded hole is correspondingly provided on the fuselage base, the adjustment bolt is arranged on the adjustment threaded hole, and the two sides of the multi-station top crown respectively cooperate with the rectangular guide rail A and the rectangular guide rail B to form a sliding guide pair.

[0010] Rectangular guide rails C are respectively provided on the inner walls on both sides of the rectangular groove A, and rectangular guide rails D are respectively provided on the inner walls on both sides of the rectangular groove B. The rectangular guide rail A cooperates with the two rectangular guide rails C and the rectangular guide rail B cooperates with the two rectangular guide rails D to realize three-sided sliding guidance of the multi-station crown.

[0011] A threaded hole is provided at the center of the multi-station crown, and a stud is provided at the corresponding upper end of the adjusting screw. The stud is arranged in the threaded hole and a stop washer and a locking nut are provided on the stud.

[0012] The mounting support includes a base arranged on the foundation, a mounting seat is provided at the upper end of the base through fastening bolts, an adjusting washer A is provided between the mounting seat and the base, the worm wheel is rotatably provided in the mounting seat, both ends of the worm are rotatably provided on the mounting seat through tapered roller bearings and a pressure cover respectively, and a rotary encoder is provided at the front end of the worm.

[0013] The gear reduction mechanism comprises a servo motor arranged on a mounting seat, the servo motor is connected to a small gear, the small gear is connected to a large gear, and the large gear is arranged at the rear end of the worm.

[0014] The guide mechanism includes a guide sleeve arranged at the upper end of the mounting seat, an adjustment pad B is provided between the guide sleeve and the mounting seat, a sliding bearing is provided on the inner wall of the upper end of the guide sleeve, two guide plates are symmetrically provided at the upper end of the guide sleeve, and two guide planes are symmetrically provided on the corresponding adjustment screw, and the guide plates cooperate with the guide planes to prevent the adjustment screw from rotating.

[0015] The automatic clamping mechanism includes a clamping seat, which is fixedly installed on the fuselage base by bolts and keys, and a clamping plate is provided on the clamping seat, one end of the clamping plate is integrally formed with the clamping seat, and a clamping opening is provided between the other end and the clamping seat, a clamping through hole for the adjustment screw to pass through is provided between the clamping seat and the clamping plate, a stud bolt is provided between one end of the clamping plate with the clamping opening and the clamping seat, a nut is provided at the end of the stud bolt, a wedge A and a wedge B are provided between the nut and the clamping plate in sequence, the wedge B is threadedly connected to the stud bolt, and avoidance through holes are respectively provided on the wedge A and the clamping plate, the diameter of the avoidance through hole is larger than the outer diameter of the stud bolt, the wedge A is connected to the clamping cylinder, the clamping cylinder is installed on the clamping seat, and the clamping cylinder is connected to a solenoid valve.

[0016] The travel limit mechanism comprises a bracket arranged at the lower end of the mounting support, two side travel switches are vertically spaced on the bracket, and a detection block cooperating with the travel switch is arranged on the side wall of the lower end of the adjusting screw.

[0017] The distance between the upper end of the multi-station top crown and the lower end of the multi-station lower mold is S, the stroke of the balancing cylinder is Y, the distance between the two travel switches is W, and W<S≤Y.

[0018] The method for using the digitally controlled multi-station bottom ejector precision forging equipment includes the above-mentioned digitally controlled multi-station bottom ejector precision forging equipment, including the following steps:

[0019] S1. Calculate the required distance from the multi-station crown to the multi-station die according to the forging size and forging processing requirements;

[0020] S2, start the servo motor, the servo motor drives the adjustment screw to rise and fall through the pinion, gear, worm and worm wheel. Since the adjustment screw is connected to the multi-station crown, the adjustment screw rises and falls with the multi-station crown. The height of the adjustment screw can be precisely adjusted by controlling the servo motor and cooperating with the rotary encoder.

[0021] S3. After the multi-station crown is adjusted to the right position, the clamping cylinder is started by controlling the solenoid valve. The clamping cylinder pulls the wedge A. With the cooperation of wedge A and wedge B, the clamping plate is driven to tighten the adjusting screw. Then the forging is installed in the mold cavity of the multi-station lower mold. The lower end of the forging passes through the through hole and acts on the upper end of the multi-station crown. Then the forging can be forged as required.

[0022] The present invention adopts the above technical solution to bring the following beneficial effects:

[0023] In order to solve the technical problem that the multi-process hot forging of cup-stem heads with the same diameter but different lengths requires multiple forging equipment and multiple sets of dies, and to solve the problem that the strength and size of the die forging body base increase due to the heavy load impact and huge vibration caused by super-large-size forming, the applied research is carried out around the digital control multi-station precision forging (forging extrusion) basic equipment structure technology. (1) The original digital control multi-station bottom material precision forging (forging extrusion) technology is based on the multi-station bottom die with multiple through holes at the bottom of the bottom die to meet the requirements of hot forgings at multiple process positions of cup-stems with the same diameter and length. (2) A rectangular groove, a guide plate and a rectangular guide are set on the inner side of the body base directly below the multi-station bottom die to achieve precise positioning of the multi-station top crown when moving up and down. (3) The multi-station top crown is threadedly connected to the adjustment screw, and the height of the digital control multi-station top crown is achieved by adjusting the screw up and down according to the length of the forging. (4) A balancing cylinder is set at the bottom of the worktable to reduce the large gravity of the reciprocating motion of the adjustment screw, reduce the torque of the servo motor drive, and effectively improve the transmission accuracy and stability. (5) An automatic clamping mechanism that is electrically interlocked with the servo drive system is set on the adjustment screw. The outer side of the clamping seat is connected to the base of the machine body. The clamping cylinder is controlled by the solenoid valve to clamp and fix the adjustment screw, thereby improving the rigidity, strength and accuracy of the digital control device against heavy load impact, and reducing the impact of heavy load impact and vibration of multiple stations. (6) A floor-standing mounting support, gear reduction mechanism and worm gear mechanism are set below the multi-station lower mold to realize digital control precision drive. (7) The lower end of the guide sleeve is bolted to the upper end of the mounting support, and a sliding bearing and a guide plate are also set on the outer side of the adjustment screw to prevent the adjustment screw from rotating. (8) A travel limit mechanism (electrical protection device) is set at the lower part of the mounting support to meet the requirements of W<S≤Y conditions to prevent digital control from overtravel. (9) The above-mentioned integrated innovative technical solution is organically combined with digital electromechanical control, which fundamentally solves the problem of multiple sets of molds and multiple machines in line forming processing of super-large cup rods with the same diameter but different lengths in the existing technology, and realizes the heavy-duty multi-step forging processing of forgings with the same diameter but different lengths on one set of molds and one equipment, which greatly saves equipment and mold investment and mold replacement time, improves production efficiency, and achieves the remarkable effect of digitally controlled multi-station bottom-top material precision forging (forging extrusion) under heavy-load impact vibration. Description of the drawings:

[0024] Figure 1 It is a structural schematic diagram of the digitally controlled multi-station bottom-top precision forging equipment of the present invention;

[0025] Figure 2 For the present invention Figure 1 EE section view in the figure;

[0026] Figure 3 For the present invention Figure 2 BB section view in the figure;

[0027] Figure 4 For the present invention Figure 3 A partial enlarged view of part C in FIG.

[0028] Figure 5 For the present invention Figure 2 CC section view in the figure;

[0029] Figure 6 For the present invention Figure 2 DD section view;

[0030] Figure 7 For the present invention Figure 1 FF section view;

[0031] Figure 8 For the present invention Figure 1 A partial enlarged view of part A;

[0032] Fig. 9 For the present invention Figure 2 A partial enlarged view of part B in FIG.

[0033] Fig.10 It is a schematic diagram of the hot die forging of the head of the existing cup-rod type forging parts with a large aspect ratio;

[0034] In the figure, 1, fuselage base, 2, work table, 3, multi-station lower mold, 4, mold cavity, 5, through hole, 6, multi-station top crown, 7, foundation, 8, mounting support, 801, base, 802, mounting seat, 803, adjustment pad A, 804, fastening bolt, 9, worm gear, 10, worm, 11, gear reduction mechanism, 1101, servo motor, 1102, small gear, 1103, large gear, 12. Adjusting screw, 1201. Threaded section, 1202. Optical axis section, 1203. Stud, 1204. Guide plane, 13. Balancing cylinder, 14. Automatic clamping mechanism, 1401. Clamping seat, 1402. Fixing bolt, 1403. Clamping plate, 1404. Clamping opening, 1405. Clamping through hole, 1406. Stud bolt, 1407. Nut, 1408. Wedge A, 14 09. Wedge block B, 1410. Avoid through hole, 1411. Clamping cylinder, 15. Guide mechanism, 1501. Guide sleeve, 1502. Adjusting pad B, 1503. Sliding bearing, 1504. Guide plate, 16. Travel limit mechanism, 1601. Bracket, 1602. Travel switch, 1603. Detection block, 17. Screw, 18. Flat key, 19. Rectangular groove A, 20. Guide plate A, 21. Rectangular guide rail A, 22. Rectangular groove B, 23. Guide plate B, 24. Rectangular guide rail B, 25. Adjusting bolt, 26. Adjusting threaded hole, 27. Rectangular guide rail C, 28. Rectangular guide rail D, 29. Threaded hole, 30. Stop washer, 31. Lock nut, 32. Tapered roller bearing, 33. Pressure cover, 34. Rotary encoder, 35. Existing lower mold, 36. Blind hole, 37. Forging. Specific implementation method:

[0035] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0037] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0038] In the present invention, the terms "upper end", "lower end", "A", "B", etc. are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the position of the indicated technical features.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "provided with", "set", "connected", "connected" and the like should be understood in a broad sense. For example, "provided with" and "set" can mean fixed installation, detachable installation, or integrated; "connected" can mean direct connection or connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] like Figure 1-9As shown, the digitally controlled multi-station lower ejection precision forging equipment includes a fuselage base 1, a workbench 2 is provided on the upper end of the fuselage base 1, a multi-station lower mold 3 is provided on the workbench 2, a plurality of mold cavities 4 are provided on the multi-station lower mold 3, and the lower end of the mold cavity 4 is configured as a through hole 5 (the lower end of the mold cavity of the existing lower mold 35 is a blind hole 36), a multi-station top crown 6 is provided directly below the multi-station lower mold 3, and the multi-station top crown 6 is vertically slidably arranged on the fuselage base 1, a floor-standing mounting support 8 is provided on the foundation 7 below the fuselage base 1, a worm gear 9 is rotatably provided on the mounting support 8, the worm gear 9 is connected to a worm 10, and the worm 10 is connected to a gear reduction mechanism 11 The center thread of the worm gear 9 is connected with an adjusting screw 12, the upper end of the adjusting screw 12 is connected to the multi-station crown 6, the lower part of the adjusting screw 12 is a threaded section 1201, and the upper part is an optical axis section 1202, two balancing cylinders 13 are symmetrically arranged between the workbench 2 and the multi-station crown 6, the lower end of the fuselage base 1 is provided with an automatic clamping mechanism 14 for locking the adjusting screw 12, the upper end of the mounting support 8 is provided with a guide mechanism 15 for guiding the adjusting screw 12, and the lower end of the mounting support 8 is provided with a travel limiting mechanism 16 for limiting the lifting and lowering of the adjusting screw 12, the worm gear 9 rotates to drive the adjusting screw 12 to lift, and the lower end of the forging 37 passes through the through hole 5 to act on the upper end of the multi-station crown 6. This application aims at the technical difficulty that the existing multi-process hot forging processing of the heads of cup rods (forgings) of the same diameter but different lengths requires multiple forging equipment and multiple sets of dies, and solves the problem related to the increase in manufacturing cost of the strength and size height of the die forging fuselage base 1 caused by heavy load impact and huge vibration caused by super-large-size forming, and conducts applied research around the basic equipment structure technology of digitally controlled multi-station precision forging (forging extrusion). The original digitally controlled multi-station bottom top material precision forging (forging extrusion) technology is used, and a multi-station lower die 3 with multiple through holes 5 at the bottom of the lower die is used to meet the hot forging requirements of multiple process positions of cup rods of the same diameter and length. A multi-station top crown 6 is slidably set on the fuselage base 1 directly below the multi-station lower die 3 to achieve precise positioning of the multi-station top crown 6 in up and down movement. The multi-station top crown 6 is threadedly connected to the adjustment screw 12, and the height of the digitally controlled multi-station top crown is achieved by adjusting the screw 12 according to the length of the forging 37. A balancing cylinder 13 is provided at the bottom of the workbench 2 to reduce the large gravity of the reciprocating up and down motion of the adjusting screw 12, reduce the torque driven by the servo motor 1101, and effectively improve the transmission accuracy and stability. An automatic clamping mechanism 14 electrically interlocked with the servo drive system is provided on the adjusting screw 12, and the clamping cylinder 1411 is controlled by the solenoid valve to clamp and fix the adjusting screw 12, thereby improving the rigidity of the digital control device, the strength and accuracy of resisting heavy load impact, and reducing the impact and vibration of heavy loads on multiple stations. A floor-standing mounting support 8, a gear reduction mechanism 11, and a worm gear mechanism are provided below the multi-station lower mold 3 to realize digital control precision drive.The guide mechanism 15 is provided at the upper end of the mounting support 8 to prevent the adjustment screw 12 from rotating. A travel limit mechanism 16 (electrical protection device) is provided at the lower part of the mounting support 8 to meet the condition requirement of W<S≤Y and prevent the digital control from overtravel. The above-mentioned integrated innovative technical solution is organically combined with the digital machine electrical control to fundamentally solve the problem of multiple sets of molds and multiple machines in line forming processing of oversized cup rods with the same diameter but different lengths in the prior art, and realizes the heavy-load multi-process forging processing of forgings with the same diameter but different lengths on one set of molds and one equipment, which greatly saves equipment and mold investment and mold replacement time, improves production efficiency, and achieves the remarkable effect of digitally controlled multi-station bottom material precision forging (forging extrusion) under heavy-load impact vibration.

[0041] The workbench 2 is fixedly connected to the fuselage base 1 by a plurality of screws 17 and keys 18, so as to realize a reliable connection between the workbench 2 and the fuselage base 1.

[0042] A rectangular groove A19 is provided on the inner wall of one side of the fuselage base 1, a guide plate A20 is fixedly provided in the rectangular groove A19, a rectangular guide rail A21 is provided on the guide plate A20, a rectangular groove B22 is provided on the inner wall of the other side of the fuselage base 1, a guide plate B23 is movably provided in the rectangular groove B22, a rectangular guide rail B24 is provided at the inner end of the guide plate B23, and an adjustment bolt 25 is provided at the outer end, and an adjustment threaded hole 26 is provided on the corresponding fuselage base 1, and the adjustment bolt 25 is arranged on the adjustment threaded hole 26, and the two sides of the multi-station crown 6 cooperate with the rectangular guide rail A21 and the rectangular guide rail B24 to form a sliding guide pair. A specific structure for relative sliding of the multi-station crown and the fuselage base is given to achieve accurate up and down positioning of the multi-station crown 6.

[0043] Rectangular guide rails C27 are respectively provided on the inner walls of both sides of the rectangular groove A19, rectangular guide rails D28 are respectively provided on the inner walls of both sides of the rectangular groove B22, and the rectangular guide rail A21 cooperates with the two rectangular guide rails C27 and the rectangular guide rail B24 cooperates with the two rectangular guide rails D28 to realize the three-sided sliding guide of the multi-station crown 6, further improving the accurate and reliable positioning of the multi-station crown 6.

[0044] The center of the multi-station crown 6 is provided with a threaded hole 29, and the upper end of the corresponding adjustment screw 12 is provided with a stud 1203, which is arranged in the threaded hole 29 and has a stop washer 30 and a locking nut 31 on the stud 1203. The specific threaded connection structure of the multi-station crown 6 and the adjustment screw 12 is given to ensure reliable connection.

[0045] The mounting support 8 includes a base 801 disposed on the foundation 7, a mounting seat 802 is disposed on the upper end of the base 801 through a fastening bolt 804, an adjusting washer A803 is disposed between the mounting seat 802 and the base 801, the worm wheel 9 is rotatably disposed in the mounting seat 802, both ends of the worm 10 are rotatably disposed on the mounting seat 802 through a tapered roller bearing 32 and a pressure cover 33, and a rotary encoder 34 is disposed at the front end of the worm 10. The specific structure of the mounting support 8 and the mounting structure of the worm 10 are given, and the overall installation is convenient, and the connection relationship runs smoothly and reliably.

[0046] The gear reduction mechanism 11 includes a servo motor 1101 disposed on a mounting seat 802, the servo motor 1101 is connected to a pinion 1102, the pinion 1102 is connected to a large gear 1103, and the large gear 1103 is disposed at the rear end of the worm 10. The specific structure of the gear reduction mechanism 11 is given to reduce the speed of the servo motor 1101 while increasing the output torque.

[0047] The guide mechanism 15 includes a guide sleeve 1501 disposed at the upper end of the mounting seat 802, an adjustment pad B1502 is disposed between the guide sleeve 1501 and the mounting seat 802, a sliding bearing 1503 is disposed on the inner wall of the upper end of the guide sleeve 1501, two guide plates 1504 are symmetrically disposed at the upper end of the guide sleeve 1501, and two guide planes 1204 are symmetrically disposed on the corresponding adjustment screw 12, and the guide plates 1504 cooperate with the guide planes 1204 to prevent the adjustment screw 12 from rotating. The sliding bearing 1503 is provided to guide the adjustment screw 12 to rise and fall, and the guide plates 1504 are provided to cooperate with the guide planes 1204 on the adjustment screw to prevent the adjustment screw 12 from rotating.

[0048] The automatic clamping mechanism 14 includes a clamping seat 1401, which is installed on the fuselage base 1 through fixing bolts 1402 and keys. A clamping plate 1403 is provided on the clamping seat 1401. One end of the clamping plate 1403 is integrally formed with the clamping seat 1401, and a clamping opening 1404 is provided between the other end and the clamping seat 1401. A clamping through hole 1405 for the adjustment screw 12 to pass through is provided between the clamping seat 1401 and the clamping plate 1403. A stud bolt 1404 is provided between the end of the clamping plate 1403 with the clamping opening 1404 and the clamping seat 1401. 6. A nut 1407 is provided at the end of the stud bolt 1406. A wedge A1408 and a wedge B1409 are provided between the nut 1407 and the clamping plate 1403. The wedge B1409 is threadedly connected to the stud bolt 1406. The wedge A1408 and the clamping plate 1403 are respectively provided with an avoidance through hole 1410. The diameter of the avoidance through hole 1410 is larger than the outer diameter of the stud bolt 1406. The wedge A1408 is connected to a clamping cylinder 1411. The clamping cylinder 1411 is installed on the clamping seat 1401. The clamping cylinder 1411 is connected to a solenoid valve. The specific structure of the automatic clamping mechanism 14 is given, which can realize automatic control of the clamping and loosening of the adjusting screw 12. When the adjusting screw 12 is clamped, it is interlocked with the servo motor 1101 to reduce the huge vibration caused by the heavy load impact.

[0049] The travel limit mechanism 16 includes a bracket 1601 arranged at the lower end of the mounting support 8, and two travel switches 1602 are vertically spaced on the bracket 1601. A detection block 1603 cooperating with the travel switch 1602 is provided on the side wall of the lower end of the adjustment screw 12. The adjustment travel of the adjustment screw 12 is accurately limited to ensure the safety of adjustment.

[0050] The distance between the upper end of the multi-station top crown 6 and the lower end of the multi-station lower mold 3 is S, the stroke of the balancing cylinder 13 is Y, the distance between the two travel switches 1602 is W, and W<S≤Y.

[0051] The method for using the digitally controlled multi-station bottom ejector precision forging equipment includes the above-mentioned digitally controlled multi-station bottom ejector precision forging equipment, including the following steps:

[0052] S1. Calculate the required distance from the multi-station crown 6 to the multi-station die 3 according to the size of the forging 37 and the forging processing requirements;

[0053] S2, start the servo motor 1101, the servo motor 1101 drives the adjustment screw 12 to rise and fall through the small gear 1102, the large gear 1103, the worm 10 and the worm wheel 9. Since the adjustment screw 12 is connected to the multi-station top crown 6, the adjustment screw 12 rises and falls with the multi-station top crown 6. The rising height of the adjustment screw 12 can be accurately adjusted by controlling the servo motor 1101 and cooperating with the rotary encoder 34.

[0054] S3. When the multi-station crown 6 is raised and lowered to the right position, the clamping cylinder 1411 is started by controlling the solenoid valve. The clamping cylinder 1411 pulls the wedge block A1408. With the cooperation of the wedge block A1408 and the wedge block B1409, the clamping plate 1403 is driven to press the adjusting screw 12. Then the forging 37 is installed in the mold cavity 4 of the multi-station lower mold 3. The lower end of the forging 37 passes through the through hole 5 and acts on the upper end of the multi-station crown 6. Then, the forging 37 can be forged as required.

[0055] The above specific implementation manner cannot be used as a limitation on the protection scope of the present invention. For those skilled in the art, any substitution, improvement or change made to the implementation manner of the present invention falls within the protection scope of the present invention.

[0056] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. Based on digital control multi-station bottom feed precision forging equipment, it is characterized by: It includes a fuselage base, a workbench is provided at the upper end of the fuselage base, a multi-station lower mold is provided on the workbench, a plurality of mold cavities are provided on the multi-station lower mold, the lower end of the mold cavity is set as a through hole, a multi-station top crown is provided directly below the multi-station lower mold, the multi-station top crown is vertically slidably arranged on the fuselage base, a floor-standing mounting support is provided on the foundation below the fuselage base, a worm gear is rotatably provided on the mounting support, the worm gear is connected to a worm, the worm is connected to a gear reduction mechanism, and the worm gear center is threadedly connected There is an adjusting screw, the upper end of which is connected to the multi-station crown, the lower part of which is a threaded section, and the upper part is an optical axis section, two balancing cylinders are symmetrically arranged between the workbench and the multi-station crown, the lower end of the fuselage base is provided with an automatic clamping mechanism for locking the adjusting screw, the upper end of the mounting support is provided with a guide mechanism for guiding the adjusting screw, the lower end of the mounting support is provided with a travel limiting mechanism for limiting the lifting of the adjusting screw, the worm gear rotates to drive the adjusting screw to lift, and the lower end of the forging passes through the through hole to act on the upper end of the multi-station crown; The automatic clamping mechanism includes a clamping seat, which is fixedly installed on the fuselage base by bolts and keys, and a clamping plate is provided on the clamping seat, one end of the clamping plate is integrally formed with the clamping seat, and a clamping opening is provided between the other end and the clamping seat, a clamping through hole for the adjustment screw to pass through is provided between the clamping seat and the clamping plate, a stud bolt is provided between one end of the clamping plate with the clamping opening and the clamping seat, a nut is provided at the end of the stud bolt, a wedge A and a wedge B are provided between the nut and the clamping plate in sequence, the wedge B is threadedly connected to the stud bolt, and avoidance through holes are respectively provided on the wedge A and the clamping plate, the diameter of the avoidance through hole is larger than the outer diameter of the stud bolt, the wedge A is connected to the clamping cylinder, the clamping cylinder is installed on the clamping seat, and the clamping cylinder is connected to a solenoid valve.

2. The precision forging equipment based on digital control multi-station bottom feed according to claim 1 is characterized in that: A rectangular groove A is provided on the inner wall of one side of the fuselage base, a guide plate A is fixedly provided in the rectangular groove A, a rectangular guide rail A is provided on the guide rail plate A, a rectangular groove B is provided on the inner wall of the other side of the fuselage base, a guide plate B is movably provided in the rectangular groove B, a rectangular guide rail B is provided at the inner end of the guide plate B, an adjustment bolt is provided at the outer end, an adjustment threaded hole is correspondingly provided on the fuselage base, the adjustment bolt is arranged on the adjustment threaded hole, and the two sides of the multi-station top crown respectively cooperate with the rectangular guide rail A and the rectangular guide rail B to form a sliding guide pair.

3. The precision forging equipment based on digital control multi-station bottom feed according to claim 2 is characterized in that: Rectangular guide rails C are respectively provided on the inner walls on both sides of the rectangular groove A, and rectangular guide rails D are respectively provided on the inner walls on both sides of the rectangular groove B. The rectangular guide rail A cooperates with the two rectangular guide rails C and the rectangular guide rail B cooperates with the two rectangular guide rails D to realize three-sided sliding guidance of the multi-station crown.

4. The precision forging equipment based on digital control multi-station bottom feed according to claim 1 or 3 is characterized in that: A threaded hole is provided at the center of the multi-station crown, and a stud is provided at the corresponding upper end of the adjusting screw. The stud is arranged in the threaded hole and a stop washer and a locking nut are provided on the stud.

5. The precision forging equipment based on digital control multi-station bottom feed according to claim 4 is characterized in that: The mounting support includes a base arranged on the foundation, a mounting seat is provided at the upper end of the base through fastening bolts, an adjusting washer A is provided between the mounting seat and the base, the worm wheel is rotatably provided in the mounting seat, both ends of the worm are rotatably provided on the mounting seat through tapered roller bearings and a pressure cover respectively, and a rotary encoder is provided at the front end of the worm.

6. The precision forging equipment based on digital control and multi-station bottom feed according to claim 5 is characterized in that: The gear reduction mechanism comprises a servo motor arranged on a mounting seat, the servo motor is connected to a small gear, the small gear is connected to a large gear, and the large gear is arranged at the rear end of the worm.

7. The precision forging equipment based on digital control and multi-station bottom feed according to claim 6 is characterized in that: The guide mechanism includes a guide sleeve arranged at the upper end of the mounting seat, an adjustment pad B is provided between the guide sleeve and the mounting seat, a sliding bearing is provided on the inner wall of the upper end of the guide sleeve, two guide plates are symmetrically provided at the upper end of the guide sleeve, and two guide planes are symmetrically provided on the corresponding adjustment screw, and the guide plates cooperate with the guide planes to prevent the adjustment screw from rotating.

8. The precision forging equipment based on digital control and multi-station bottom feed according to claim 7 is characterized in that: The travel limit mechanism includes a bracket arranged at the lower end of the mounting support, and two side travel switches are vertically spaced on the bracket, and a detection block that cooperates with the travel switch is provided on the side wall of the lower end of the adjusting screw; the distance between the upper end of the multi-station top crown and the lower end of the multi-station lower mold is S, the stroke of the balancing cylinder is Y, the distance between the two travel switches is W, and W<S≤Y.

9. A method for using a digitally controlled multi-station bottom-top precision forging equipment, comprising the digitally controlled multi-station bottom-top precision forging equipment as claimed in claim 8, comprising the following steps: S1. Calculate the required distance from the multi-station crown to the multi-station die according to the forging size and forging processing requirements; S2, start the servo motor, the servo motor drives the adjustment screw to rise and fall through the pinion, gear, worm and worm wheel. Since the adjustment screw is connected to the multi-station crown, the adjustment screw rises and falls with the multi-station crown. The height of the adjustment screw can be precisely adjusted by controlling the servo motor and cooperating with the rotary encoder. S3. After the multi-station crown is adjusted to the right position, the clamping cylinder is started by controlling the solenoid valve. The clamping cylinder pulls the wedge A. With the cooperation of wedge A and wedge B, the clamping plate is driven to tighten the adjusting screw. Then the forging is installed in the mold cavity of the multi-station lower mold. The lower end of the forging passes through the through hole and acts on the upper end of the multi-station crown. Then the forging can be forged as required.

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