Intelligent forging machine tool with quick die changing and safety protection functions

Abstract

The invention discloses an intelligent forging machine tool with quick die change and safety protection functions, and relates to the technical field of forging machine tool equipment. The intelligent forging machine tool with the rapid die changing and safety protection functions comprises an equipment main body, a base, a hydraulic cylinder, a fixing disc and a forging and pressing assembly, the base is arranged on the equipment main body, the hydraulic cylinder is fixedly installed in the equipment main body, the fixing disc is fixedly installed at the driving end of the hydraulic cylinder, and the forging and pressing assembly is arranged on the base. The hydraulic cylinder drives the forging and pressing assembly to forge an object, and pressure generated by the hydraulic cylinder is evenly transmitted to the forging and pressing disc through the supporting frame and the fixing column, so that the object is evenly stressed, and the forging and pressing effect on the object is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of forging press machine tools, in particular to an intelligent forging press machine tool with rapid die changing and safety protection functions. BACKGROUND

[0002] In modern industrial production, forging processing is an important means of metal forming, widely used in automobile manufacturing, aerospace, mechanical equipment and many other fields. As the core equipment of forging processing, the performance of forging press machine tools directly affects product quality, production efficiency and enterprise economic benefits. With the rapid development of manufacturing industry, the product update speed is accelerating, and the functional requirements of forging press machine tools are increasingly diversified and refined.

[0003] Traditional forging press machine tools face many challenges in practical application. In terms of die changing, the die installation and disassembly process of traditional forging press machine tools is complex, usually requiring the use of multiple tools, consuming a lot of manpower and time. For example, in the production process of automobile parts, when different types of forging dies need to be replaced to produce various parts, the cumbersome die changing process may cause the production line to stop for a long time, not only reducing production efficiency, but also increasing production cost. This makes it difficult for enterprises to respond quickly to market diversification demands and adjust production strategies quickly.

[0004] Safety protection issues cannot be ignored. During forging operation, due to the severe deformation of metal materials, a large amount of flying debris and chips will be generated. The protection measures of traditional forging press machine tools are often not perfect, and cannot effectively block these flying objects, posing a serious threat to the personal safety of operators. According to relevant statistics, safety accidents caused by insufficient protection of forging press machine tools occur from time to time, not only causing physical harm to workers, but also causing economic losses and production delays to enterprises. In addition, inadequate protection may also damage equipment and facilities around the machine tool, affecting the stability of the production environment.

[0005] With the rise of intelligent manufacturing technology, the lack of intelligence in traditional forging press machine tools has also become increasingly prominent. They lack automated monitoring and control functions, and cannot monitor the running state of the equipment, the wear of the die and various parameters in the production process in real time. This makes it difficult for enterprises to achieve fine management of the production process, and unable to timely discover and solve potential problems, further limiting the improvement of production efficiency and product quality.

[0006] In the field of forging and pressing processing such as automobile manufacturing and aerospace, the product iteration speed continues to accelerate (such as 2-3 new car models per year, 15% annual increase in customization demand for aerospace parts), resulting in a significant increase in the frequency of die changing for forging and pressing machines. The average daily die changing frequency of mainstream production lines has reached 3-5 times, and some high-customization production lines even exceed 8 times. However, traditional forging and pressing machines use bolts to fix the dies, and manual disassembly / installation of 12-18 high-strength bolts is required for single die changing, which takes 1.5-3 hours. The production line downtime caused by die changing alone accounts for 20%-35%, directly causing a 15%-25% loss of daily production capacity. At the same time, during the forging process, metal debris can splash at a speed of 25-40 m / s due to high temperature and high pressure, with enough kinetic energy to penetrate a 3mm thick ordinary steel plate. The existing manual protective door needs to be triggered manually, with a response delay of 1.5-2 seconds, which cannot block the splashing in time. According to industry statistics, such protective failure leads to a forging safety accident rate of 0.2-0.3 times per thousand working hours, not only causing operator injuries, but also causing production line downtime for 72-96 hours and direct economic losses of over 100,000 yuan per accident. The severity of this technical problem has become a core bottleneck restricting the efficiency and safety of the forging industry.

[0007] In summary, it is urgent to develop an intelligent forging and pressing machine with quick die changing and safety protection functions. It can effectively solve the problems of traditional forging and pressing machines, improve production efficiency, reduce production cost, protect the personal safety of operators, enhance the ability of enterprises to respond to market changes, and promote the development of manufacturing industry towards intelligence, efficiency and safety. SUMMARY

[0008] To overcome the shortcomings of the prior art, the present application provides an intelligent forging and pressing machine with quick die changing and safety protection functions, which solves the problem of not being able to quickly change the forging disc when the forging disc is damaged and needs to be replaced with a forging disc of different specifications and sizes, reducing the adaptability of the forging disc and causing inconvenience to use.

[0009] To address the above-mentioned serious industry pain points: On the one hand, the contradiction between the traditional die changing mode "high frequency demand and long time-consuming process" is designed "magnetic drive-mechanical locking" quick die changing structure, without disassembling the bolt can complete the installation and unlocking of the forging assembly, the single die changing time is shortened from 1.5-3 hours to 5-8 minutes, the invalid downtime is greatly reduced, and the high-frequency die changing scene of 3-8 times per day is perfectly adapted; on the other hand, aiming at the risk of "high energy characteristics of splashing and low reliability of manual protection", the linkage mechanism of the forging assembly and the protection baffle is constructed, the U-shaped baffle can be automatically raised within 0.5 seconds when the forging action is triggered, combined with the adaptive layered structure, the splashing debris with a speed of 25-40 m / s can be completely blocked, the protection response speed is 3-4 times higher than that of the traditional manual device, and the problem of unreliable protection is fundamentally solved. Through the precise breakthrough of the industry core pain point, the ingenuity and practicality of the design of the present application are fully embodied.

[0010] To achieve the above object, the present application is realized by the following technical scheme: an intelligent forging press with quick die changing and safety protection function, comprising a device main body, a base, a hydraulic cylinder, a fixed disc and a forging assembly, the base is arranged on the device main body, the hydraulic cylinder is fixedly installed in the device main body, the fixed disc is fixedly installed on the driving end of the hydraulic cylinder, the forging assembly comprises an upper connecting ring, a forging disc and a fixed column, the upper connecting ring is fixedly connected with the forging disc through a support frame and bolts, the opposite side of the fixed disc and the forging disc is provided with a groove, and a first magnetic part is fixedly connected at the inner center of the groove, a plurality of clamping grooves are arranged on the side wall of the groove, the fixed column passes through the upper connecting ring to the inside of the groove at both ends, the upper and lower ends of the fixed column are respectively provided with mounting grooves, the mounting grooves are respectively slidably connected with clamping blocks, and the clamping blocks penetrate the fixed column, the inside of the clamping block is embeddedly connected with a second magnetic part which is magnetically opposite to the first magnetic part, and the mounting grooves are fixedly connected with elastic reset strips, and one end of the elastic reset strip is fixedly connected with the clamping block. The hydraulic cylinder drives the forging assembly to forge the object, the pressure generated by the hydraulic cylinder is uniformly transmitted to the forging disc through the support frame and the fixed column, so that the object is uniformly stressed, the forging effect on the object is improved, and at the same time, when the fixed column is inserted into the inside of the groove at both ends, the magnetic attraction force between the first magnetic part and the second magnetic part makes the elastic reset strip deform to push the clamping block out of the mounting groove into the clamping groove, so as to quickly fix the forging assembly and the fixed disc, thereby saving the installation time of the forging assembly.

[0011] Preferably, the inside of the mounting groove is fixedly connected with a sliding layer, the sliding layer is slidably connected with a magnetic layer above and outside the first magnetic part, the side wall of the magnetic layer is provided with a magnetic suction port corresponding to the first magnetic part, and the first magnetic part and the second magnetic part generate magnetic attraction force through the magnetic suction port.

[0012] Preferably, the inside of the mounting groove is fixedly connected with a first elastic member, and the first elastic member is fixedly connected with the diamagnetic layer, a rotating handle is fixedly connected on the side wall of the diamagnetic layer and extends to the outside through the arc-shaped notch on the side wall of the fixed column, the diamagnetic layer is limited by the first elastic member, so that the first magnetic member, the magnetic suction port and the second magnetic member remain horizontal, thereby generating a magnetic attraction between the first magnetic member and the second magnetic member, and meanwhile, the side wall of the diamagnetic layer is moved to between the first magnetic member and the second magnetic member by rotating the rotating handle, thereby isolating the magnetic attraction, the clamping block is withdrawn from the clamping groove under the pulling force of the elastic return strip, and thereby the forging assembly can be quickly removed for replacement or maintenance.

[0013] Preferably, a U-shaped frame horizontally arranged at the top end of the base is fixedly connected on the side wall of the base, and a U-shaped sliding groove is arranged in the U-shaped frame.

[0014] Preferably, a U-shaped slot is arranged in the U-shaped baffle, a second elastic member is fixedly connected in the U-shaped slot, and one end of the second elastic member is fixedly installed in the U-shaped sliding groove, so that the U-shaped baffle is kept in the U-shaped sliding groove by the elastic pulling force of the second elastic member, thereby shrinking the U-shaped baffle and facilitating personnel to place objects on the base.

[0015] Preferably, notches are arranged at the two side edges of the base, a rotating cylinder is rotatably connected in the notches through a rotating shaft, and an upper pressing plate is fixedly connected above the rotating cylinder, and the top end of the upper pressing plate is arranged above the base, so that the rotating cylinder is rotated when the forging assembly is pressed on the upper pressing plate.

[0016] Preferably, an extension rod is fixedly connected below the rotating cylinder, and a connecting sleeve is fixedly connected at one end of the extension rod and rotatably installed at the center of the U-shaped slot through a rotating shaft, so that the rotating cylinder is rotated to push the U-shaped baffle to move up in the U-shaped sliding groove, and the U-shaped baffle is located outside the object, thereby blocking the fragments generated during forging of the object and improving the safety of the device during the forging process.

[0017] Preferably, the U-shaped baffle comprises a lower connecting layer and an upper connecting layer, a mounting sliding groove is arranged on the lower connecting layer, a plurality of upper connecting layers are slidably installed in the mounting sliding groove, a third elastic strip is fixedly connected at the bottom of the upper connecting layer and fixedly installed in the mounting sliding groove, the upper connecting layer is extended out of the mounting sliding groove by the elastic tension of the third elastic strip, so that the U-shaped baffle remains in an open state, and when the U-shaped baffle moves up, part of the upper connecting layer will shrink into the lower connecting layer when colliding with the object, thereby avoiding that the object above the base blocks the U-shaped baffle from moving up as a whole, and improving the protection effect of the U-shaped baffle on the fragments.

[0018] The application provides an intelligent forging press machine with quick die changing and safety protection functions. (I) The intelligent forging press machine with quick die changing and safety protection functions, the hydraulic cylinder drives the forging assembly to forge the object, the pressure generated by the hydraulic cylinder is uniformly transmitted to the forging disc through the support frame and the fixed column, so that the object is uniformly stressed, the forging effect on the object is improved, and when the fixed column is inserted into the inside of the groove, the elastic reset strip is deformed by the magnetic attraction force of the first magnetic part and the second magnetic part, so that the clamping block is pushed out of the mounting groove to the inside of the clamping groove, so that the forging assembly and the fixed disc are quickly and fixedly connected, and the mounting time of the forging assembly is saved.

[0019] (II) The intelligent forging press machine with quick die changing and safety protection functions, the absolute magnetic layer is limited by the first elastic part, so that the first magnetic part, the magnetic suction port and the second magnetic part remain horizontal, so that the first magnetic part and the second magnetic part generate magnetic attraction force, and by rotating the rotary handle, the side wall of the absolute magnetic layer is moved between the first magnetic part and the second magnetic part, so as to isolate the magnetic attraction force, and the clamping block is withdrawn from the clamping groove under the tension of the elastic reset strip, so that the forging assembly can be quickly removed for replacement or repair.

[0020] (III) The intelligent forging press machine with quick die changing and safety protection functions, the U-shaped baffle is kept in the inside of the U-shaped sliding groove by the elastic tension of the second elastic part, so as to shrink the U-shaped baffle, and personnel can conveniently place the object on the base.

[0021] (IV) The intelligent forging press machine with quick die changing and safety protection functions, when the forging assembly is pressed on the upper pressing plate, the rotary cylinder is rotated, the U-shaped baffle is pushed up in the U-shaped sliding groove through the extension rod, and the U-shaped baffle is located outside the object, so as to block the fragments generated during forging of the object, and the safety of the device during the forging process is improved.

[0022] (V) The intelligent forging press machine with quick die changing and safety protection functions, the connecting layer extends the mounting sliding groove by the elastic tension of the third elastic strip, so that the U-shaped baffle remains open, and when the U-shaped baffle moves up, part of the upper connecting layer will shrink into the inside of the lower connecting layer when colliding with the object, so as to avoid that the object above the base blocks the U-shaped baffle from moving up as a whole, so as to improve the protection effect of the U-shaped baffle on the debris. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the application; Figure 2 It is a side view of the application Figure 1 ; Figure 3 It is a sectional view of the forging assembly of the application; Figure 4 It is the fixed column internal structure schematic view of the present application; Figure 5 It is the local structure schematic view of the installation slot of the present application; Figure 6 It is the U-shaped frame and U-shaped baffle structure schematic view of the present application; Figure 7 It is the U-shaped baffle structure schematic view of the present application.

[0024] In the figure: 1, equipment main body; 2, base; 3, hydraulic cylinder; 4, fixed disc; 5, forging and pressing assembly; 6, upper connecting ring; 7, forging and pressing disc; 8, fixed column; 9, clamping groove; 10, first magnetic part; 11, clamping block; 12, second magnetic part; 13, elastic reset strip; 14, sliding layer; 15, absolute magnetic layer; 16, magnetic suction port; 17, first elastic part; 18, rotating handle; 19, U-shaped frame; 20, U-shaped baffle; 21, second elastic part; 22, upper pressing plate; 23, telescopic rod; 24, lower connecting layer; 25, upper connecting layer; 26, third elastic strip; 27, notch. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0026] Reference Figures 1-7The application provides a technical scheme: an intelligent forging press with quick die changing and safety protection function, which comprises an equipment main body 1, a base 2, a hydraulic cylinder 3, a fixed disc 4 and a forging assembly 5, the base 2 is arranged on the equipment main body 1, the hydraulic cylinder 3 is fixedly installed in the equipment main body 1, the fixed disc 4 is fixedly installed on the driving end of the hydraulic cylinder 3, the forging assembly 5 comprises an upper connecting ring 6, a forging disc 7 and a fixed column 8, the upper connecting ring 6 is fixedly connected with the forging disc 7 through a support frame and bolts, the opposite side of the fixed disc 4 and the forging disc 7 is provided with a groove, a first magnetic part 10 is fixedly connected at the inner center of the groove, a plurality of clamping grooves 9 are arranged on the side wall of the groove, the fixed column 8 penetrates through the upper connecting ring 6 to the inner part of the groove, the upper and lower ends of the fixed column 8 are respectively provided with mounting grooves, the mounting grooves are respectively slidably connected with clamping blocks 11, the clamping blocks 11 penetrate through the fixed column 8, the inner part of the clamping blocks 11 is embeddedly connected with a second magnetic part 12 which is magnetically opposite to the first magnetic part 10, the mounting grooves are fixedly connected with elastic reset strips 13, one end of the elastic reset strips 13 is fixedly connected with the clamping blocks 11, the hydraulic cylinder 3 drives the forging assembly 5 to forge an object, the pressure generated by the hydraulic cylinder 3 is uniformly transmitted to the forging disc 7 through the support frame and the fixed column 8, so that the object is uniformly stressed, the forging effect on the object is improved, and meanwhile, when the two ends of the fixed column 8 are inserted into the inner part of the groove, the magnetic attraction force of the first magnetic part 10 and the second magnetic part 12 makes the elastic reset strips 13 deform to push the clamping blocks 11 out of the mounting grooves into the clamping grooves 9, so that the forging assembly 5 and the fixed disc 4 are fixedly connected quickly, and the mounting time of the forging assembly 5 is saved.

[0027] The inner part of the mounting groove is fixedly connected with a sliding layer 14, a diamagnetic layer 15 is slidably connected above the sliding layer 14 and at the outer side of the first magnetic part 10, a magnetic suction port 16 is arranged on the side wall of the diamagnetic layer 15 and corresponds to the first magnetic part 10, and the first magnetic part 10 and the second magnetic part 12 generate a magnetic attraction force through the magnetic suction port 16.

[0028] The inner part of the mounting groove is fixedly connected with a first elastic part 17, the first elastic part 17 is fixedly connected with the diamagnetic layer 15, a rotating handle 18 is fixedly connected on the side wall of the diamagnetic layer 15, and the rotating handle 18 extends to the outside through an arc-shaped notch 27 in the side wall of the fixed column 8, the diamagnetic layer 15 is limited by the first elastic part 17, so that the first magnetic part 10, the magnetic suction port 16 and the second magnetic part 12 remain horizontal, so that the first magnetic part 10 and the second magnetic part 12 generate a magnetic attraction force, and meanwhile, by rotating the rotating handle 18, the side wall of the diamagnetic layer 15 is moved between the first magnetic part 10 and the second magnetic part 12, so as to isolate the magnetic attraction force, the clamping block 11 is withdrawn from the clamping groove 9 under the pulling force of the elastic reset strip 13, so that the forging assembly 5 can be quickly taken down for replacement or maintenance.

[0029] The side wall of the base 2 is fixedly connected with a U-shaped frame 19 with the top end of the base 2 being kept horizontal, and the inside of the U-shaped frame 19 is provided with a U-shaped sliding groove, and the inside of the U-shaped sliding groove is slidably connected with a U-shaped baffle 20.

[0030] The inside of the U-shaped baffle 20 is provided with a U-shaped groove, the inside of the U-shaped groove is fixedly connected with a second elastic piece 21, one end of the second elastic piece 21 is fixedly installed in the inside of the U-shaped sliding groove, and the U-shaped baffle 20 is kept in the inside of the U-shaped sliding groove through the elastic tension of the second elastic piece 21, so as to shrink the U-shaped baffle 20, and facilitate personnel to place objects on the base 2.

[0031] The both side edges of the base 2 are provided with notches 27, the inside of the notches 27 is rotatably connected with a rotating cylinder through a rotating shaft, the upper side of the rotating cylinder is fixedly connected with an upper pressing plate 22, and the top end of the upper pressing plate 22 is arranged above the base 2, when the forging and pressing assembly 5 is pressed on the upper pressing plate 22, the rotating cylinder is pushed to rotate.

[0032] The lower side of the rotating cylinder is fixedly connected with a telescopic rod 23, one end of the telescopic rod 23 is fixedly connected with a connecting sleeve, and the connecting sleeve is rotatably installed at the center of the inside of the U-shaped groove, the rotating cylinder rotates, the U-shaped baffle 20 is pushed to move up in the U-shaped sliding groove through the telescopic rod 23, so that the U-shaped baffle 20 is located outside the object, thereby blocking the debris generated when the object is forged and pressed, and improving the safety of the device in the forging and pressing process.

[0033] The U-shaped baffle 20 comprises a lower connecting layer 24 and an upper connecting layer 25, the lower connecting layer 24 is provided with a mounting sliding groove, a plurality of the upper connecting layers 25 are slidably installed in the inside of the mounting sliding groove, the bottom of the upper connecting layer 25 is fixedly connected with a third elastic strip 26, and the bottom end of the third elastic strip 26 is fixedly installed in the inside of the mounting sliding groove, the upper connecting layer 25 is stretched out of the mounting sliding groove through the elastic tension of the third elastic strip 26, so that the U-shaped baffle 20 is kept in an open state, when the U-shaped baffle 20 moves up, part of the upper connecting layers 25 will shrink into the inside of the lower connecting layer 24 when colliding with the object, thereby avoiding that the object above the base 2 blocks the U-shaped baffle 20 from moving up as a whole, and improving the protection effect of the U-shaped baffle 20 on the debris.

[0034] The first magnetic member 10 and the second magnetic member 12 in the embodiment are both SmCo5 type samarium-cobalt permanent magnets (Curie temperature ≥720℃, suitable for high temperature environment of 120-180℃ during forging), with a diameter of 25mm and a height of 15mm, and the magnetization direction is axial. When the assembly gap between the fixed column 8 and the groove is 0.5mm, the magnetic attraction force F1 between the two magnetic members is ≥800N. The elastic reset strip 13 is made of 1Cr17Ni2 stainless steel spring sheet, with a thickness of 1.2mm, a width of 8mm, a length of 30mm, an elastic coefficient of 15N / mm, and an initial pre-tightening force F2 ≈150N. Since F1>F2, the clamping block 11 can reliably push to overcome the sliding friction (≤50N) and move out of the installation slot. After locking, the magnetic attraction force and the mechanical interlocking force (≥300N) of the clamping block 11 and the clamping groove 9 together form a total holding force ≥1100N, which is much larger than the maximum impact load (≤500N) borne by the fixed column 8 during forging, effectively preventing the mold from loosening. The absolute magnetic layer 15 is made of 1J22 high magnetic permeability alloy sheet (magnetic permeability μ≥8×10 4 H / m), with a thickness of 2mm, and the magnetic attraction port 16 is a circular notch with a diameter of 15mm. The sliding layer 14 is a QAl9-4 copper-based alloy plate inlaid with molybdenum disulfide, with a surface roughness Ra≤0.8μm and a friction coefficient ≤0.05, ensuring smooth sliding of the absolute magnetic layer 15 in a strong magnetic field. The first elastic member 17 is a 60Si2Mn cylindrical spiral spring (wire diameter 3mm, outer diameter 20mm, free length 30mm), with an elastic coefficient of 20N / mm and a stroke of 5mm, which can stably keep the absolute magnetic layer 15 in the "conduction" (magnetic attraction port 16 aligned with the first magnetic member 10) or "isolation" (alloy plate covering the first magnetic member 10) station. The maximum torque of the rotating handle 18 is ≤5N・m, and it can be rotated without tools.

[0035] The key parameters of the linkage mechanism composed of the upper pressing plate 22, the rotating cylinder, the telescopic rod 23, the connecting sleeve and the U-shaped baffle 20 in the embodiment are as follows: the distance L1 from the fixed point of the upper pressing plate 22 to the rotating center of the rotating cylinder is 80 mm, the distance L2 from the rotating center of the rotating cylinder to the hinge point of the telescopic rod 23 is 60 mm, and the distance L3 from the hinge point of the telescopic rod 23 to the connecting sleeve of the U-shaped baffle 20 is 120 mm; the touch stroke S of the forging and pressing assembly 5 pressing the upper pressing plate 22 is 15 mm, at this time, the rotating angle θ of the rotating cylinder is approximately 14°, and the telescopic amount ΔL of the telescopic rod 23 is approximately 12 mm, which can drive the U-shaped baffle 20 to rise to the effective protection height H of 350 mm (covering the debris spatter range within the radius of 300 mm). The second elastic member 21 adopts a QGS-25-50 type nitrogen spring, the initial reset force F3 is approximately 300 N, the working stroke is 50 mm, and the U-shaped baffle 20 is ensured to be reset within 0.8 seconds after the forging is completed; the telescopic rod 23 is a 45# steel chromium-plated adjustable rigid linkage rod, the length adjustment range is ±5 mm, the middle part is provided with a hexagonal adjusting nut, which is used for compensating the assembly error, ensuring that the rising height consistency deviation of the U-shaped baffles 20 of multiple devices is less than or equal to 2 mm, and avoiding the protection failure or jamming caused by the size error.

[0036] In the embodiment, the magnetic members (the first magnetic member 10 and the second magnetic member 12) are selected from SmCo5 samarium-cobalt permanent magnets, which have a residual magnetization Br≥1.05T and a coercive force Hcb≥750kA / m, in addition to high-temperature resistance, to ensure that there is no obvious demagnetization during long-term use; the contact surfaces of the clamping block 11 and the clamping groove 9 are made of Cr12MoV tool steel, which is quenched (hardness HRC58-62), cryogenically treated at-80°C (2-hour heat preservation) and surface nitrided (nitriding layer depth 0.15-0.2mm), so that the wear resistance is increased by more than 5 times, and the service life is more than 5000 times of die replacement. The 1J22 alloy plate of the absolute magnetic layer 15 is solid solution treated (1050°C for 1 hour and then water quenched), to ensure stable magnetic permeability; the copper-based alloy plate of the sliding layer 14 is honed on the surface, to ensure low friction characteristics; the fixed column 8 is made of 40Cr alloy structural steel, which is quenched and tempered (hardness HB220-250), to ensure that the impact strength is greater than or equal to 800MPa.

[0037] The lower connecting layer 24 of the U-shaped baffle 20 in the embodiment is provided with a T-shaped mounting sliding groove (slot width 20 mm, slot depth 15 mm), and the upper connecting layer 25 is matched with the sliding groove through a T-shaped sliding block (matching gap 0.03-0.05 mm). There are six independent upper connecting layers 25 (evenly distributed along the circumference of the U-shaped baffle 20), and one third elastic strip 26 is fixed at the bottom of each upper connecting layer 25. The third elastic strip 26 is made of polyurethane elastic strip with a Shore hardness of 70D, and the cross-sectional size is 5 mm x 8 mm. The initial pre-tightening force is approximately 50 N, and the upper connecting layer 25 is pushed out of the sliding groove under normal conditions. When the upper connecting layer 25 collides with the workpiece and is subjected to a lateral pressure of greater than or equal to 80 N, it can be compressed into the lower connecting layer 24 (the maximum contraction is 10 mm). It is reset within 0.3 seconds after the pressure is removed, avoiding the U-shaped baffle 20 from being unable to move upward as a whole due to the size difference of the workpiece, and ensuring that there is no blind area in the protection of workpieces of different specifications (diameter 50-300 mm).

[0038] In the embodiment, the hinge point of the upper pressing plate (22) and the rotating cylinder (i.e., the connection point where the upper pressing plate is fixed on the rotating cylinder) is vertically 80 mm away from the rotating center of the rotating cylinder (the axis around which the rotating cylinder rotates at the notch (27)), and the hinge point is located on the side of the rotating cylinder close to the center of the base (2). The rotating center of the rotating cylinder is vertically 60 mm away from the hinge point of the telescopic rod (23) and the rotating cylinder, and the hinge point is located on the side of the rotating cylinder away from the center of the base (2). The straight-line distance between the hinge point of the telescopic rod (23) and the connecting sleeve (the point where the connecting sleeve is fixed in the U-shaped groove of the U-shaped baffle (20)) and the hinge point of the telescopic rod (23) and the rotating cylinder is 120 mm. The above size relationship ensures that when the forging and pressing assembly (5) presses down the upper pressing plate (22) and makes the upper pressing plate (22) rotate downward by 14° around the rotating center of the rotating cylinder (corresponding to a pressing stroke of 15 mm), the rotating cylinder synchronously drives the telescopic rod (23) to extend by 12 mm, and finally pushes the U-shaped baffle (20) to rise by 350 mm along the U-shaped sliding groove, completely covering the debris splashing path within a range of 300 mm around the forging and pressing area.

[0039] The second elastic member (21) is selected from a QGS-25-50 type nitrogen spring (or a 65Mn tension spring with a wire diameter of 4 mm, an outer diameter of 25 mm, and a free length of 80 mm), which provides an initial reset force F3≈300N. This reset force needs to meet two core requirements: first, after forging and pressing, it can pull the U-shaped baffle (20) to rise by 350 mm and completely reset to the U-shaped sliding groove within 0.8 seconds, without affecting the workpiece placement; second, the reset force is less than the driving force (about 500 N) generated when the forging and pressing assembly (5) presses down the upper pressing plate (22), ensuring that the forging and pressing assembly (5) only needs a small pressing stroke of 15 mm to overcome the reset force and push the U-shaped baffle (20) to rise through the connecting rod mechanism, avoiding the delay of the protection action due to the excessive reset force.

[0040] The telescopic rod (23) is a rigid connecting rod with a hexagonal adjusting nut in the middle, the rod body is composed of two sections of 45# steel chrome-plated rods connected by threads, and the adjusting range is ±5mm; its core function is: after the equipment is assembled or different thickness workpieces are replaced, the total length of the connecting rod is fine-tuned by rotating the adjusting nut in the middle to compensate for the size deviation caused by the assembly error (such as the installation gap of the rotating cylinder and the U-shaped baffle) or the height change of the workpiece, ensuring that the final lifting height of the U-shaped baffle (20) is always stable at 350mm, avoiding the blind area of protection or the jamming of the baffle due to size deviation; if a fixed length connecting rod is used, an assembly error of more than 2mm will cause the baffle to lift insufficiently or excessively, and effective protection cannot be achieved, so the adjustable design of the telescopic rod (23) is the key to ensuring the reliability of protection.

[0041] When working, the hydraulic cylinder 3 drives the forging assembly 5 to forge the object, and the pressure generated by the hydraulic cylinder 3 is evenly transmitted to the forging disc 7 through the support frame and the fixed column 8, so that the object is uniformly stressed, improving the forging effect on the object. At the same time, when the fixed column 8 is inserted into the inside of the groove, the magnetic attraction force of the first magnetic member 10 and the second magnetic member 12 causes the elastic return strip 13 to deform and push the clamping block 11 out of the installation slot into the inside of the clamping slot 9, thereby quickly fixing and connecting the forging assembly 5 and the fixed disc 4, saving the installation time of the forging assembly 5. The first elastic member 17 limits the absolute magnetic layer 15, so that the first magnetic member 10, the magnetic suction port 16 and the second magnetic member 12 remain horizontal, thereby generating a magnetic attraction force between the first magnetic member 10 and the second magnetic member 12. At the same time, by rotating the rotating handle 18, the side wall of the absolute magnetic layer 15 is moved between the first magnetic member 10 and the second magnetic member 12, thereby isolating the magnetic attraction force, and the clamping block 11 is withdrawn from the clamping slot 9 under the tension of the elastic return strip 13, so that the forging assembly 5 can be quickly removed for replacement or maintenance. The U-shaped baffle 20 is kept inside the U-shaped sliding groove by the elastic tension of the second elastic member 21, thereby shrinking the U-shaped baffle 20, facilitating personnel to place the object on the base 2. When the forging assembly 5 is pressed on the upper pressing plate 22, it pushes the rotating cylinder to rotate, the rotating cylinder rotates, and the U-shaped baffle 20 is pushed up in the U-shaped sliding groove by the telescopic rod 23, so that the U-shaped baffle 20 is located on the outside of the object, thereby blocking the debris generated during forging, improving the safety of the device during the forging process. The upper connecting layer 25 extends out of the installation sliding groove by the elastic tension of the third elastic strip 26, so that the U-shaped baffle 20 remains open. When the U-shaped baffle 20 moves up, part of the upper connecting layer 25 will shrink into the inside of the lower connecting layer 24 when it collides with the object, thereby avoiding the object above the base 2 blocking the U-shaped baffle 20 from moving up as a whole, thereby improving the protection effect of the U-shaped baffle 20 on the debris.

[0042] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0043] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent forging machine tool with rapid die change and safety protection functions, comprising a device body (1), a base (2), a hydraulic cylinder (3), a fixed plate (4) and a forging assembly (5), wherein the base (2) is provided on the device body (1), the hydraulic cylinder (3) is fixedly mounted in the device body (1), and the fixed plate (4) is fixedly mounted on the driving end of the hydraulic cylinder (3), characterized in that: The forging assembly (5) includes an upper connecting ring (6), a forging plate (7) and a fixed column (8), wherein the upper connecting ring (6) is fixedly connected to the forging plate (7) through a support frame by bolts, and grooves are provided on opposite sides of the fixed plate (4) and the forging plate (7), and a first magnetic member (10) is fixedly connected to the inner center of the groove, and a plurality of card slots (9) are provided on the side wall of the groove, and both ends of the fixed column (8) pass through the upper connecting ring (6) to the inner part of the groove, and the upper and lower ends of the fixed column (8) are respectively provided with mounting grooves, and the inner parts of the mounting grooves are respectively slidably connected with card blocks (11), and the card blocks (11) pass through the fixed column (8), and the inner part of the card blocks (11) is embedded with a second magnetic member (12) having a magnetic opposite to that of the first magnetic member (10), and the inner part of the mounting groove is fixedly connected with an elastic reset strip (13), and one end of the elastic reset strip (13) is fixedly connected to the card block (11).

2. The intelligent forging machine with rapid die change and safety protection functions according to claim 1, characterized in that: A sliding layer (14) is fixedly connected to the interior of the mounting groove, a magnetic insulation layer (15) is slidably connected above the sliding layer (14) and located on the outside of the first magnetic part (10), and a magnetic suction port (16) is provided on the side wall of the magnetic insulation layer (15) corresponding to the first magnetic part (10).

3. The intelligent forging machine with rapid die change and safety protection functions according to claim 2, characterized in that: A first elastic member (17) is fixedly connected to the interior of the mounting groove, and the first elastic member (17) is fixedly connected to the magnetic insulation layer (15). A rotating handle (18) is fixedly connected to the side wall of the magnetic insulation layer (15), and the rotating handle (18) extends to the outside through the arc-shaped notch on the side wall of the fixing column (8).

4. The intelligent forging machine with rapid die change and safety protection functions according to claim 1, characterized in that: A U-shaped frame (19) is fixedly connected to the side wall of the base (2), the top of which is kept horizontal with the top of the base (2). A U-shaped chute is provided inside the U-shaped frame (19), and a U-shaped baffle (20) is slidably connected inside the U-shaped chute.

5. The intelligent forging machine with rapid die change and safety protection functions according to claim 4, characterized in that: A U-shaped groove is provided inside the U-shaped baffle (20), a second elastic member (21) is fixedly connected to the inside of the U-shaped groove, and one end of the second elastic member (21) is fixedly mounted inside the U-shaped chute.

6. The intelligent forging machine with rapid die change and safety protection functions according to claim 1, characterized in that: Notches (27) are provided at both side edges of the base (2), and a rotating cylinder is rotatably connected to the inside of the notch (27) via a rotating shaft. An upper pressing plate (22) is fixedly connected above the rotating cylinder, and the top end of the upper pressing plate (22) is provided above the base (2).

7. The intelligent forging machine with rapid die change and safety protection functions according to claim 6, characterized in that: A telescopic rod (23) is fixedly connected to the bottom of the rotating cylinder, one end of the telescopic rod (23) is fixedly connected to a connecting sleeve, and the connecting sleeve is rotatably mounted at the center of the U-shaped groove via a rotating shaft.

8. The intelligent forging machine with rapid die change and safety protection functions according to claim 4, characterized in that: The U-shaped baffle (20) comprises a lower connecting layer (24) and an upper connecting layer (25), wherein the lower connecting layer (24) is provided with a mounting slot, and a plurality of upper connecting layers (25) of the U-shaped components are slidably mounted inside the mounting slot, and a third elastic strip (26) is fixedly connected to the bottom of the upper connecting layer (25), and the bottom end of the third elastic strip (26) is fixedly mounted inside the mounting slot.

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