A raw material blanking device for precision forging machining

Abstract

The present application belongs to the technical field of metal plate blanking, and particularly relates to a raw material blanking device for precision forge piece machining, which comprises a gas pressure opening mechanism, an automatic feeding mechanism, an elastic buffering mechanism, a blanking machining mechanism and a lower die. The elastic buffering mechanism is arranged on the blanking machining mechanism, the lower die is arranged on the elastic buffering mechanism, the automatic feeding mechanism is arranged on the blanking machining mechanism, and the gas pressure opening mechanism is arranged on the blanking machining mechanism. The automatic feeding mechanism and two groups of one-way limiting components capable of rotating in one direction are provided. The principle is similar to that of two one-way valves in a hydraulic jack. Through the alternate rotation of the two groups of one-way limiting components, the steel plate material can be gradually horizontally moved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of metal plate blanking, and particularly relates to a raw material blanking device for precision forge processing. BACKGROUND

[0002] Blanking generally refers to blanking a specific shape from a metal plate, and then performing precision forging processing on the specific shape, such as a chain wheel, a metal support and the like; compared with traditional forging processing, the processing mode can greatly shorten the time required for subsequent forging, because the shape of the part after blanking is already relatively close to the product.

[0003] The raw material for blanking is mostly a steel coil, which is unfolded for blanking. The raw material has not been subjected to final heat treatment and is generally soft. Therefore, if the steel plate material is only naturally laid on the lower die, deviation is prone to occur during the blanking process. Therefore, in order to ensure the blanking precision, the steel plate material needs to be fixed on the lower die before the upper die contacts the steel plate material.

[0004] The clamping, releasing and horizontal movement of the material are currently driven by independent functional modules. Simplifying and optimizing the modules is an important way to reduce production costs and improve competitiveness. SUMMARY

[0005] In view of the above situation, in order to overcome the defects of the prior art, the application provides a raw material blanking device for precision forge processing. In order to realize automatic and phased feeding of the steel plate material, the application proposes an automatic feeding mechanism, two groups of one-way limiting components capable of rotating only in one direction, which are similar in principle to two one-way valves in a hydraulic jack. Through the alternate rotation of the two groups of one-way limiting components, the gradual horizontal movement of the steel plate material can be realized. In order to clamp and fix the material before blanking, the application also creatively proposes a pneumatic opening mechanism. Through the elastic force of the return spring, the steel plate material can be expanded and laid flat towards both ends, and the steel plate material can be pressed and fixed on the lower die. At the same time, through the negative pressure adsorption mode, the problem of slippage of the rubber shoe block when the horizontal force is too large can also be avoided.

[0006] The technical scheme adopted by the application is as follows: the application provides a raw material blanking device for precision forge processing, which comprises a pneumatic opening mechanism, an automatic feeding mechanism, an elastic buffer mechanism, a blanking processing mechanism and a lower die. The elastic buffer mechanism is arranged on the blanking processing mechanism, the lower die is arranged on the elastic buffer mechanism, the automatic feeding mechanism is arranged on the blanking processing mechanism, and the pneumatic opening mechanism is arranged on the blanking processing mechanism.

[0007] The automatic feeding mechanism comprises unidirectional limiting assemblies and a curved supporting assembly, the two unidirectional limiting assemblies are respectively arranged on the two sides of the air pressure supporting mechanism, one unidirectional limiting assembly is arranged on the curved supporting assembly, and the other unidirectional limiting assembly is arranged on the lower die.

[0008] The unidirectional limiting assembly comprises a roller support, a feeding roller, a ratchet gear and a ratchet ring, the feeding roller is rotatably arranged in the roller support, the steel plate material is in rolling contact with the feeding roller under the extrusion of the feeding roller, the ratchet gear is fixedly connected to the two ends of the feeding roller, and the ratchet ring is fixedly connected to the roller support, under the cooperation of the ratchet gear and the ratchet ring, the feeding roller can only rotate in one direction.

[0009] The two unidirectional limiting assemblies can only rotate in one direction, the principle is similar to the two unidirectional valves in the hydraulic jack, through the alternate rotation of the two unidirectional limiting assemblies, the step-by-step horizontal movement of the steel plate material can be realized, and the step of the horizontal movement can be controlled by the lifting amplitude of the lower die.

[0010] Further, the automatic feeding mechanism further comprises a force storage turntable and a force storage torsional spring, the force storage turntable is arranged outside the roller support through a support, the force storage torsional spring is arranged between the force storage turntable and the ratchet gear, and the force storage turntable can be rotated through an external mechanism or manual control.

[0011] The force storage turntable and the force storage torsional spring are auxiliary accessories that can be selectively used, so that tension can be applied to the steel plate material in the case that the elasticity of the steel plate material is insufficient, and the horizontal movement of the steel plate material is assisted.

[0012] As a preferred, the air pressure supporting mechanism comprises an elastic supporting assembly and an automatic vacuum assembly, the automatic vacuum assembly is arranged at the end of the elastic supporting assembly, the elastic supporting assembly comprises a hinged table, an air pressure sleeve, an air pressure push rod and a reset spring, the hinged table is symmetrically arranged on the blanking processing mechanism, the air pressure sleeve is rotatably arranged on the hinged table, the hinged table is provided with an angle limiting portion for limiting the angle of the air pressure sleeve, the air pressure push rod is slidingly engaged in the air pressure sleeve, and the reset spring is arranged between the air pressure sleeve and the air pressure push rod.

[0013] In order to solve the problem that the elastic supporting assembly is more and more likely to slip with the change of the angle, the automatic vacuum assembly gradually increases the extrusion force and friction force between the rubber hoof and the steel plate material through negative pressure, so that the effect of laying the steel plate material can be realized, and the rubber hoof is prevented from slipping.

[0014] The bending support assembly comprises a fixed seat, a deflection roller support and a deflection support roller, the fixed seat is arranged on the blanking processing mechanism, one of the roller supports is arranged on the fixed seat, the other roller support is fixedly connected to the lower die through the support, the deflection roller support is arranged on the fixed seat, and the deflection support roller is rotatably arranged on the deflection roller support.

[0015] The unidirectional limiting assembly adopts a setting mode that one group is fixed and the other group follows the lifting of the lower die, so that the feeding can be driven by tension when the lower die descends, the steel plate material pressed by the ring-shaped suction disc cannot move transversely, and the problem that the air pressure supporting mechanism cannot be reset is avoided.

[0016] Further, the elastic buffering mechanism comprises a hydraulic sleeve, a hydraulic push rod, an oil storage tank and a separation piston, the hydraulic sleeve is arranged on the blanking processing mechanism, the lower die is arranged on the hydraulic push rod, the hydraulic push rod is slidably arranged in the hydraulic sleeve, a through hole is arranged on the piston of the hydraulic push rod, the hydraulic sleeve is filled with oil, the oil storage tank is arranged on the side of the hydraulic sleeve and penetrates the hydraulic sleeve, the separation piston is slidably arranged in the oil storage tank, the lower part of the separation piston is filled with oil, and the upper part of the separation piston is filled with gas.

[0017] The elastic buffering mechanism can adopt a spring or a hydraulic buffering mechanism, compared with the ordinary spring, the hydraulic mechanism can avoid the problem of reciprocating swing of the spring in addition to the functions of allowing lifting and buffering energy absorption.

[0018] Further, the blanking processing mechanism comprises a pressing assembly and a die assembly, and the die assembly is arranged on the pressing assembly.

[0019] As preferred, the pressing assembly comprises a bottom plate, a frame and a hydraulic cylinder, the frame is arranged on the bottom plate, the hydraulic cylinder is arranged on the frame, and the hydraulic sleeve and the fixed seat are arranged on the bottom plate.

[0020] As further preferred, the die assembly comprises a pressing table and a lower limiting frame, the pressing table is arranged on the telescopic part of the hydraulic cylinder, the hinge table is symmetrically arranged on the side of the pressing table, the upper die matched with the lower die is arranged below the pressing table, and the lower limiting frame is arranged on the bottom plate and located directly below the pressing table.

[0021] The beneficial effects achieved by the above structure are as follows:

[0022] (1) The two groups of unidirectional limiting assemblies can only rotate in one direction, and the principle is similar to the two unidirectional valves in the hydraulic jack, through the alternate rotation of the two groups of unidirectional limiting assemblies, the step-by-step transverse movement of the steel plate material can be realized, and the step of transverse movement can be controlled by the lifting amplitude of the lower die.

[0023] (2) The force storage rotating disc and the force storage torsional spring are used as auxiliary accessories selectively, so that the pulling force can be applied to the steel plate material to assist the steel plate material to complete the transverse feeding when the elasticity of the steel plate material is insufficient.

[0024] (3) In order to solve the problem that the elastic support assembly is more and more likely to slip with the change of the angle, the automatic vacuum assembly gradually increases the extrusion force and the friction force between the rubber shoe and the steel plate material through the negative pressure mode, so that the effect of laying the steel plate material can be realized, and the rubber shoe is prevented from slipping.

[0025] (4) The one-way limiting assembly adopts the setting mode that one group is fixed and the other group follows the lifting of the lower die, so that the feeding can be driven through the pulling force when the lower die is lowered, and the steel plate material pressed by the ring limiting suction disc cannot be transversely moved, so that the problem that the air pressure supporting mechanism cannot be reset is avoided.

[0026] (5) The elastic buffering mechanism can adopt a spring or a hydraulic buffering mechanism, compared with the ordinary spring, the hydraulic mechanism has the functions of allowing lifting and buffering energy absorption, and can avoid the problem of reciprocating swing of the spring. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a perspective view of a raw material blanking device for precision forging machining proposed by the present application;

[0028] Figure 2 It is a front view of a raw material blanking device for precision forging machining proposed by the present application;

[0029] Figure 3 It is a top view of a raw material blanking device for precision forging machining proposed by the present application;

[0030] Figure 4 It is Figure 2 It is a sectional view along the cutting line A-A;

[0031] Figure 5 It is Figure 4 It is a sectional view along the cutting line B-B;

[0032] Figure 6 It is Figure 5 It is a local enlarged view of I in the figure;

[0033] Figure 7 It is Figure 2 It is a local enlarged view of II in the figure;

[0034] Figure 8 It is Figure 4 It is a local enlarged view of III in the figure;

[0035] Figure 9The schematic view of the movement direction of each component in the application.

[0036] Wherein, 1, air pressure opening mechanism, 2, automatic feeding mechanism, 3, elastic buffer mechanism, 4, blanking processing mechanism, 5, elastic support assembly, 6, automatic vacuum assembly, 7, hinged table, 8, air pressure sleeve, 9, air pressure push rod, 10, ball socket, 11, ring suction cup, 12, elastic air pipe, 13, angle limiting part, 14, ball head, 15, rubber shoe block, 16, bowl-shaped cavity, 17, one-way limiting assembly, 18, curved support assembly, 19, roller support, 20, feeding roller, 21, ratchet gear, 22, ratchet ring, 23, fixed seat, 24, steering roller support, 25, steering support roller, 26, hydraulic sleeve, 27, hydraulic push rod, 28, oil storage tank, 29, separation piston, 30, lower die, 31, pressure applying assembly, 32, die assembly, 33, bottom plate, 34, rack, 35, hydraulic cylinder, 36, pressure applying table, 37, lower limiting frame, 38, steel plate material, 39, return spring, 40, force storage turntable, 41, force storage torsional spring.

[0037] The accompanying drawings are used to provide a further understanding of the application, and constitute a part of the specification, together with the embodiments of the application, to explain the application, and do not constitute a limitation on the application. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0039] In the description of the application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0040] As Figures 1-8 shown, the application provides a raw material blanking device for precision forging machining, which comprises an air pressure opening mechanism 1, an automatic feeding mechanism 2, an elastic buffer mechanism 3, a blanking processing mechanism 4 and a lower die 30. The elastic buffer mechanism 3 is arranged on the blanking processing mechanism 4, the lower die 30 is arranged on the elastic buffer mechanism 3, the automatic feeding mechanism 2 is arranged on the blanking processing mechanism 4, and the air pressure opening mechanism 1 is arranged on the blanking processing mechanism 4.

[0041] The air pressure expansion mechanism 1 comprises an elastic support assembly 5 and an automatic vacuum assembly 6, the automatic vacuum assembly 6 is arranged at the end of the elastic support assembly 5, the elastic support assembly 5 comprises a hinged table 7, an air pressure sleeve 8, an air pressure push rod 9 and a reset spring 39, the hinged table 7 is symmetrically arranged on the blanking processing mechanism 4, the air pressure sleeve 8 is rotatably arranged on the hinged table 7, the hinged table 7 is provided with an angle limiting part 13 for limiting the angle of the air pressure sleeve 8, the air pressure push rod 9 is slidingly arranged in the air pressure sleeve 8, and the reset spring 39 is arranged between the air pressure sleeve 8 and the air pressure push rod 9. The automatic vacuum assembly 6 comprises a ball socket 10, a ring-shaped suction cup 11 and an elastic air pipe 12, the end of the air pressure push rod 9 is provided with a ball head 14, the ball socket 10 is rotatably arranged on the ball head 14, the ring-shaped suction cup 11 is fixedly connected below the ball socket 10, the ring-shaped suction cup 11 is composed of a central rubber hoof 15 and a peripheral bowl-shaped cavity 16, and the elastic air pipe 12 is arranged between the bowl-shaped cavity 16 and the air pressure sleeve 8.

[0042] In order to solve the problem that the elastic support assembly 5 is more and more easy to slip with the change of the angle, the automatic vacuum assembly 6 gradually increases the extrusion force and friction force between the rubber hoof 15 and the steel plate material 38 through the negative pressure mode, so that the effect of laying the steel plate material 38 can be realized, and the rubber hoof 15 can be prevented from slipping.

[0043] The automatic feeding mechanism 2 comprises two-way limiting assemblies 17 and bending support assemblies 18, the two-way limiting assemblies 17 are arranged in two groups, the two groups of two-way limiting assemblies 17 are respectively located on the two sides of the air pressure expansion mechanism 1, one group of two-way limiting assemblies 17 is arranged on the bending support assembly 18, and the other group of two-way limiting assemblies 17 is arranged on the lower die 30.

[0044] The two-way limiting assembly 17 comprises a roller support 19, a feeding roller 20, a ratchet gear 21 and a ratchet ring 22, the feeding roller 20 is rotatably arranged in the roller support 19, the steel plate material 38 is in rolling contact with the feeding roller 20 under the extrusion of the feeding roller 20, the ratchet gear 21 is fixedly connected to the two ends of the feeding roller 20, the ratchet ring 22 is fixedly connected to the roller support 19, and the feeding roller 20 can only rotate in one direction under the cooperation of the ratchet gear 21 and the ratchet ring 22.

[0045] The two groups of two-way limiting assemblies 17 can only rotate in one direction, which is similar to the two one-way valves in the hydraulic jack, and through the alternate rotation of the two groups of two-way limiting assemblies 17, the step-by-step horizontal movement of the steel plate material 38 can be realized, and the step of the horizontal movement can be controlled by the lifting amplitude of the lower die 30.

[0046] The automatic feeding mechanism 2 further comprises a force storage turntable 40 and a force storage torsional spring 41, the force storage turntable 40 is arranged outside the roller support 19 through a support, the force storage torsional spring 41 is arranged between the force storage turntable 40 and the ratchet gear 21, and the force storage turntable 40 can be rotated by an external mechanism or manually controlled.

[0047] The power storage rotary disc 40 and the power storage torsion spring 41 are auxiliary accessories used selectively, which can apply tension to the steel plate material 38 to assist it to complete the transverse feeding when the elasticity of the steel plate material 38 is insufficient.

[0048] The bending support assembly 18 includes a fixed seat 23, a deflection roller support 24 and a deflection support roller 25, the fixed seat 23 is arranged on the punching processing mechanism 4, one of the roller supports 19 is arranged on the fixed seat 23, the other of the roller supports 19 is fixed to the lower die 30 through the support, the deflection roller support 24 is arranged on the fixed seat 23, and the deflection support roller 25 is rotationally arranged on the deflection roller support 24.

[0049] The one-way limiting assembly 17 adopts a setting mode of one group of fixed and the other group of following the lifting of the lower die 30, which can not only drive the feeding through the tension when the lower die 30 is lowered, but also can prevent the transverse movement of the steel plate material 38 pressed by the ring-shaped suction disc 11, so that the problem that the air pressure supporting mechanism 1 cannot be reset is avoided.

[0050] The elastic buffering mechanism 3 includes a hydraulic sleeve 26, a hydraulic push rod 27, an oil storage tank 28 and a separation piston 29, the hydraulic sleeve 26 is arranged on the punching processing mechanism 4, the lower die 30 is arranged on the hydraulic push rod 27, the hydraulic push rod 27 is slidingly arranged in the hydraulic sleeve 26, a through hole is arranged on the piston of the hydraulic push rod 27, the hydraulic sleeve 26 is filled with oil, the oil storage tank 28 is arranged on the side of the hydraulic sleeve 26 and penetrates the hydraulic sleeve 26, and the separation piston 29 is slidingly arranged in the oil storage tank 28, the lower part of the separation piston 29 is filled with oil, and the upper part of the separation piston 29 is filled with gas.

[0051] The elastic buffering mechanism 3 can adopt a spring or a hydraulic buffering mechanism, compared with the ordinary spring, the hydraulic mechanism not only has the functions of allowing lifting and buffering energy absorption, but also can avoid the problem of spring reciprocating swing.

[0052] The punching processing mechanism 4 includes a pressure applying assembly 31 and a die assembly 32, and the die assembly 32 is arranged on the pressure applying assembly 31.

[0053] The pressure applying assembly 31 includes a bottom plate 33, a rack 34 and a hydraulic cylinder 35, the rack 34 is arranged on the bottom plate 33, the hydraulic cylinder 35 is arranged on the rack 34, and the hydraulic sleeve 26 and the fixed seat 23 are arranged on the bottom plate 33.

[0054] The die assembly 32 includes a pressure applying table 36 and a lower limiting frame 37, the pressure applying table 36 is arranged on the telescopic part of the hydraulic cylinder 35, the hinge table 7 is symmetrically arranged on the side of the pressure applying table 36, and the upper die matched with the lower die 30 is arranged below the pressure applying table 36, and the lower limiting frame 37 is arranged on the bottom plate 33 and located directly below the pressure applying table 36.

[0055] AsFigure 9 As shown, the vertical arrow represents the movement direction of the pressing table 36 when punching, the horizontal arrow represents the movement direction of the steel plate material 38, the arc-shaped arrow represents the rotation direction of the feeding roller 20, and the dashed curve represents the position of the steel plate material 38 in different states; wherein: the lower curve represents the position of the steel plate material 38 when the lower die 30 is lowered to the bottom; the upper curve represents the position of the steel plate material 38 when the lower die 30 is just reset and the ring-shaped suction cup 11 has not left the steel plate material 38.

[0056] In specific use, the punching process of the steel plate material 38 is realized through the reciprocating extension and retraction of the hydraulic cylinder 35, and the specific process is as follows:

[0057] In the natural state, the gas pressure opening mechanism 1 is in a drooping state, but due to the existence of the angle limiting part 13, the verticality of the gas pressure sleeve 8 will be limited, that is, the gas pressure sleeve 8 is inclined in the free state; due to the elasticity of the elastic air pipe 12, the ring-shaped suction cup 11 is horizontal in the free state and the angle of the ball socket 10 is constant;

[0058] With the extension of the hydraulic cylinder 35, the pressing table 36 gradually descends with the gas pressure opening mechanism 1, and after the bowl-shaped cavity 16 contacts the steel plate material 38, the rubber shoe 15 will also contact the steel plate material 38, then when the pressing table 36 continues to descend, on the one hand, the retraction of the elastic buffer mechanism 3 allows the lower die 30 to descend until it abuts against the lower limit frame 37, and on the other hand, the gas pressure opening mechanism 1 is compressed and rotated at the same time during the approach of the upper die and the lower die 30.

[0059] The pushing force of the gas pressure push rod 9 on the steel plate material 38 through the ring-shaped suction cup 11 can be decomposed into horizontal and vertical forces, and in the initial state, the angle between the elastic support assembly 5 and the horizontal plane is large, at this time the lateral force is small, and the ring-shaped suction cup 11 is not easy to slip on the steel plate material 38, but as the angle between the elastic support assembly 5 and the horizontal plane increases and the compression of the reset spring 39, the lateral force becomes larger, and the ring-shaped suction cup 11 is also more likely to slip on the steel plate material 38, wherein the elastic force of the reset spring 39 is only used to assist the flattening of the steel plate material 38 and close to the lower die 30, so its value does not need to be too large;

[0060] At the same time, when the gas pressure push rod 9 retracts, the gas in the ring-shaped suction cup 11 can be extracted through the elastic air pipe 12, so that the inside of the bowl-shaped cavity 16 presents a negative pressure environment, thereby increasing the extrusion force between the rubber shoe 15 and the steel plate material 38, and further providing greater friction to resist the increasing lateral force, avoiding the rubber shoe 15 slipping on the steel plate material 38.

[0061] In the process of lowering the lower die 30, the length of the steel plate material 38 between the two sets of one-way limiting components 17 increases, thus exerting a pulling force on both ends. At this time, the one-way limiting components 17 at the front end of the movement direction of the steel plate material 38 cannot rotate, and thus need to be lowered together with the lower die 30, thereby ensuring that the steel plate material 38 at the blanking position does not move laterally, and the other end of the steel plate material 38 rotates with the feed roller 20 under the action of the pulling force.

[0062] After the lower die 30 abuts against the lower limiting frame 37, the protruding part on the upper die and the through slot on the lower die 30 cooperate to punch out materials of a specific shape from the steel plate material 38. These materials may still have a small degree of bending at this time, but this does not affect the final product because subsequent precision forging and heat treatment will be performed.

[0063] After the punching is completed, the hydraulic cylinder 35 is retracted, and in this process, the air pressure opening mechanism 1 is also gradually reset. Before the rubber shoe 15 and the steel plate material 38 are separated, the elongated steel plate material 38 will accumulate near the fixed seat 23. As the air pressure in the bowl-shaped cavity 16 increases, the extrusion force between the rubber shoe 15 and the steel plate material 38 decreases. When the ring-shaped suction cup 11 and the steel plate material 38 are separated, the steel plate material 38 is reset under the action of its own elasticity, and at the same time, the other end of the feed roller 20 is rotated, completing the lateral phase displacement of the steel plate material 38.

[0064] As another embodiment of the present application: when the elasticity of the steel plate material 38 itself is insufficient to complete the feeding, a force storage turntable 40 and a force storage torsional spring 41 can be arranged outside the roller support 19 away from the fixed seat 23. The force stored in the force storage torsional spring 41 makes the ratchet ring 22 have a rotating tendency. At the same time, the rotating resistance of the feed roller 20 near the fixed seat 23 is increased to avoid the problem of the force storage torsional spring 41 directly driving the steel plate material 38 to continuously move laterally.

[0065] The force storage turntable 40 can be manually or by other means to rotate, store the force for the force storage torsional spring 41, and the stored force can be used for a period of time.

[0066] It should be noted that, in the present text, relational terms such as first and second are used merely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or equipment.

[0067] The above describes the present application and its embodiments, which are not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired thereby, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution are not creative, and should belong to the protection scope of the present application.

Claims

1. A raw material punching device for precision forging, characterized in that: Including air pressure open mechanism (1), automatic feeding mechanism (2), elastic buffer mechanism (3), blanking processing mechanism (4) and lower mould (30), the elastic buffer mechanism (3) array is established on blanking processing mechanism (4), the lower mould (30) is established on elastic buffer mechanism (3), the automatic feeding mechanism (2) is established on blanking processing mechanism (4), the air pressure open mechanism (1) is established on blanking processing mechanism (4); The automatic feeding mechanism (2) includes one-way limiting component (17) and bending support component (18), the one-way limiting component (17) is equipped with two groups, two groups of one-way limiting component (17) are located at the two sides of air pressure open mechanism (1) respectively, a group of one-way limiting component (17) is established on bending support component (18), another group of one-way limiting component (17) is established on lower mould (30); The air pressure open mechanism (1) includes elastic support component (5) and automatic vacuum component (6), the automatic vacuum component (6) is established at the end of elastic support component (5), the elastic support component (5) includes hinged platform (7), air pressure sleeve (8), air pressure push rod (9) and reset spring (39), the hinged platform (7) is symmetrically established on blanking processing mechanism (4), the air pressure sleeve (8) is rotatably established on hinged platform (7), the hinged platform (7) is provided with angle limiting portion (13) for limiting the angle of air pressure sleeve (8), the air pressure push rod (9) is slidingly engaged in air pressure sleeve (8), the reset spring (39) is arranged between air pressure sleeve (8) and air pressure push rod (9); The one-way limiting component (17) includes roller support (19), feeding roller (20), ratchet gear (21) and ratchet ring (22), the feeding roller (20) is rotatably established in roller support (19), the steel plate material (38) is in rolling contact with feeding roller (20) under the extrusion of feeding roller (20), the ratchet gear (21) is fixedly connected to both ends of feeding roller (20), the ratchet ring (22) is fixedly connected to roller support (19), under the cooperation of ratchet gear (21) and ratchet ring (22), feeding roller (20) can only rotate in one direction.

2. The raw material blanking device for precision forgings according to claim 1, characterized in that: The automatic feeding mechanism (2) further includes force storage turntable (40) and force storage torsional spring (41), the force storage turntable (40) is arranged outside the roller support (19) through a support, and the force storage torsional spring (41) is arranged between the force storage turntable (40) and the ratchet gear (21).

3. The raw material blanking device for precision forgings according to claim 2, characterized in that: The automatic vacuum component (6) includes ball socket (10), ring-shaped suction cup (11) and elastic air pipe (12), the end of the air pressure push rod (9) is provided with a ball head (14), the ball socket (10) is rotatably arranged on the ball head (14), the ring-shaped suction cup (11) is fixedly connected below the ball socket (10), the ring-shaped suction cup (11) is composed of a central rubber hoof block (15) and a peripheral bowl-shaped cavity (16), and the elastic air pipe (12) is arranged between the bowl-shaped cavity (16) and the air pressure sleeve (8).

4. The raw material blanking device for precision forgings according to claim 3, characterized in that: The bending support assembly (18) comprises a fixing base (23), a deflection roller support (24) and a deflection support roller (25), the fixing base (23) is arranged on the punching processing mechanism (4), one of the roller supports (19) is arranged on the fixing base (23), the other of the roller supports (19) is fixedly connected to the lower die (30) through a support, the deflection roller support (24) is arranged on the fixing base (23), and the deflection support roller (25) is rotatably arranged on the deflection roller support (24).

5. The raw material blanking device for precision forgings according to claim 4, characterized in that: The punching processing mechanism (4) comprises a pressing assembly (31) and a die assembly (32), and the die assembly (32) is arranged on the pressing assembly (31).

6. The raw material blanking device for precision forgings according to claim 5, characterized in that: The pressing assembly (31) comprises a bottom plate (33), a rack (34) and a hydraulic cylinder (35), the rack (34) is arranged on the bottom plate (33), the hydraulic cylinder (35) is arranged on the rack (34), and the elastic buffering mechanism (3) and the fixing base (23) are arranged on the bottom plate (33).

7. The raw material blanking device for precision forgings according to claim 6, characterized in that: The die assembly (32) comprises a pressing table (36) and a lower limiting frame (37), the pressing table (36) is arranged on the telescopic part of the hydraulic cylinder (35), the hinged tables (7) are symmetrically arranged on the side face of the pressing table (36), an upper die matched with the lower die (30) is arranged below the pressing table (36), the lower limiting frame (37) is arranged on the bottom plate (33), and the lower limiting frame (37) is located directly below the pressing table (36).

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