Raw material blanking device for precision forge piece machining

Abstract

The invention 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 an air pressure opening mechanism, an automatic feeding mechanism, elastic buffering mechanisms, a blanking machining mechanism and a lower die, the elastic buffering mechanisms are arranged on the blanking machining mechanism in an array mode, and the lower die is arranged on the elastic buffering mechanisms. The automatic feeding mechanism is arranged on the blanking machining mechanism, and the air pressure opening mechanism is arranged on the blanking machining mechanism. The automatic feeding mechanism and the two one-way limiting assemblies which can only rotate in one direction are provided, the principle is similar to that of two one-way valves in a hydraulic jack, and step-by-step transverse movement of a steel plate material can be achieved through alternate rotation of the two one-way limiting assemblies.

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 likely 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 problems, the raw material blanking device for precision forge processing is provided to overcome the defects of the prior art. In order to realize automatic phased feeding of the steel plate material, the automatic feeding mechanism is provided. Two groups of one-way limiting components capable of only rotating in one direction are similar in principle to the 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 air pressure opening mechanism is also creatively provided. 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 rubber shoe block slipping due to excessive horizontal force can also be avoided.

[0006] The technical scheme adopted by the application is as follows: the raw material blanking device for precision forge processing is provided, which comprises an air pressure 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. The air pressure opening mechanism is arranged on the blanking processing mechanism. The automatic feeding mechanism comprises one-way limiting components and a curved support component. The one-way limiting components are provided in two groups. The two groups of one-way limiting components are respectively located on the two sides of the air pressure opening mechanism. One group of one-way limiting components is arranged on the curved support component, and the other group of one-way limiting components is arranged on the lower die. 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, and 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. 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.

[0007] 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 alternating rotation of the two groups of unidirectional limiting assemblies, the step-by-step transverse movement of the steel plate material can be achieved, and the step of the transverse movement can be controlled by the lifting amplitude of the lower die.

[0008] 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. The force storage turntable can be rotated by an external mechanism or manually controlled.

[0009] The force storage turntable and the force storage torsional spring are auxiliary accessories that can be selectively used. In the case that the elasticity of the steel plate material is insufficient, the force storage turntable and the force storage torsional spring can apply tension to the steel plate material to assist the transverse feeding of the steel plate material.

[0010] As a preferred embodiment, the air pressure expansion mechanism comprises an elastic support assembly and an automatic vacuum assembly. The automatic vacuum assembly is arranged at the end of the elastic support assembly. The elastic support assembly comprises a hinged table, an air pressure sleeve, an air pressure push rod and a return spring. The hinged table is symmetrically arranged on the blanking processing mechanism. The air pressure sleeve is rotatably arranged on the hinged table. An angle limiting part for limiting the angle of the air pressure sleeve is arranged on the hinged table. The air pressure push rod is slidingly engaged in the air pressure sleeve. The return spring is arranged between the air pressure sleeve and the air pressure push rod. As a further preferred embodiment of the present application, the automatic vacuum assembly comprises a ball socket, a ring-shaped suction cup and an elastic air pipe. The end of the air pressure push rod is provided with a ball head. The ball socket is rotatably arranged on the ball head. The ring-shaped suction cup is fixedly connected below the ball socket. The ring-shaped suction cup is composed of a central rubber hoof and a peripheral bowl-shaped cavity. The elastic air pipe is arranged between the bowl-shaped cavity and the air pressure sleeve.

[0011] 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 friction force between the rubber hoof and the steel plate material through negative pressure, which can not only achieve the effect of laying the steel plate material, but also avoid the slipping of the rubber hoof.

[0012] The bending support assembly comprises a fixing seat, a deflection roller support and a deflection support roller, the fixing seat is arranged on the blanking processing mechanism, one of the roller supports is arranged on the fixing seat, the other roller support is fixed on the lower die through the support, the deflection roller support is arranged on the fixing seat, and the deflection support roller is rotatably arranged on the deflection roller support.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] Further, the blanking processing mechanism comprises a pressure applying assembly and a die assembly, and the die assembly is arranged on the pressure applying assembly.

[0017] As preferred, the pressure applying 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 fixing seat are arranged on the bottom plate.

[0018] As further preferred, the die assembly comprises a pressure applying table and a lower limiting frame, the pressure applying table is arranged on the telescopic part of the hydraulic cylinder, the hinge table is symmetrically arranged on the side of the pressure applying table, the upper die matched with the lower die is arranged below the pressure applying table, and the lower limiting frame is arranged on the bottom plate and located directly below the pressure applying table.

[0019] The beneficial effects achieved by the application with the above structure are as follows: (1) The two groups of unidirectional limiting assemblies can only rotate in one direction, the principle is similar to the two unidirectional valves in the hydraulic jack, and 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.

[0020] (2) The force storage turntable and force storage torsion spring are optional auxiliary accessories that can apply tension to the steel plate material when the steel plate material itself has insufficient elasticity, thereby assisting it in completing the lateral feeding.

[0021] (3) In order to solve the problem that the elastic support component becomes increasingly prone to slipping as the angle changes, the automatic vacuum component gradually increases the extrusion force and friction between the rubber shoe and the steel plate material by means of negative pressure, which can not only achieve the effect of flattening the steel plate material, but also prevent the rubber shoe from slipping.

[0022] (4) The one-way limit assembly adopts a setting mode in which one group is fixed and the other group follows the lower mold to rise and fall. It can not only drive the feeding by pulling when the lower mold descends, but also prevent the steel plate material that has been pressed by the ring suction cup from moving horizontally, so there will be no problem that the air pressure expansion mechanism cannot be reset.

[0023] (5) The elastic buffer mechanism can adopt a spring or a hydraulic buffer mechanism. Compared with the ordinary spring, the hydraulic mechanism not only has the functions of allowing lifting and lowering and buffering energy absorption, but also can avoid the problem of reciprocating shaking of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of a raw material blanking device for precision forging processing proposed by the present invention; Figure 2 This is a front view of a raw material blanking device for precision forging processing proposed by the present invention; Figure 3 A top view of a raw material blanking device for precision forging processing proposed by the present invention; Figure 4 for Figure 2 A cross-sectional view along the cutting line AA; Figure 5 for Figure 4 A cross-sectional view along the cutting line BB; Figure 6 for Figure 5 A partial enlarged view of point Ⅰ in the middle; Figure 7 for Figure 2 A partial enlarged view of the middle II; Figure 8 for Figure 4 A partial enlarged view of point III in the middle; Figure 9 Schematic diagram of the movement direction of each component in the present invention.

[0025] Wherein, 1, gas pressure opening mechanism, 2, automatic feeding mechanism, 3, elastic buffering mechanism, 4, blanking processing mechanism, 5, elastic support assembly, 6, automatic vacuum assembly, 7, articulated platform, 8, gas pressure sleeve, 9, gas 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, deflection roller support, 25, deflection support roller, 26, hydraulic sleeve, 27, hydraulic push rod, 28, oil storage tank, 29, partition piston, 30, lower die, 31, pressure applying assembly, 32, die assembly, 33, bottom plate, 34, rack, 35, hydraulic cylinder, 36, pressure applying platform, 37, lower limiting frame, 38, steel plate material, 39, return spring, 40, force storage turntable, 41, force storage torsional spring.

[0026] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are intended to serve as an exemplification of the application, and do not limit the application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the 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 other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0028] In the description of the present 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 for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 present application.

[0029] As Figures 1-8 shown, the present application provides a raw material blanking device for precision forging machining, which comprises a gas pressure opening mechanism 1, an automatic feeding mechanism 2, an elastic buffering mechanism 3, a blanking processing mechanism 4 and a lower die 30, the elastic buffering mechanism 3 is arranged on the blanking processing mechanism 4, the lower die 30 is arranged on the elastic buffering mechanism 3, the automatic feeding mechanism 2 is arranged on the blanking processing mechanism 4, and the gas pressure opening mechanism 1 is arranged on the blanking processing mechanism 4. 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 rotationally 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 rotationally 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.

[0030] 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.

[0031] 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 arranged 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. 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 rotationally 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.

[0032] The two groups of two-way limiting assemblies 17 can only rotate in one direction, and the principle is similar to the two one-way valves in the hydraulic jack, 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.

[0033] 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.

[0034] The accumulator rotating disc 40 and the accumulator torsional spring 41 are auxiliary accessories for selective use, 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.

[0035] 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 fixedly connected 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] As Figure 9As 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.

[0043] 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: In the natural state, the air pressure supporting mechanism 1 is in a drooping state, but due to the existence of the angle limiting part 13, the verticality of the air pressure sleeve 8 will be limited, that is, the air 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; With the extension of the hydraulic cylinder 35, the pressing table 36 gradually descends with the air pressure supporting 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 air pressure supporting mechanism 1 is compressed and rotated at the same time during the approach of the upper die and the lower die 30; The pushing force of the air 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; At the same time, when the air pressure push rod 9 retracts, it can extract the gas in the ring-shaped suction cup 11 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.

[0044] 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 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, thus descending with the lower die 30, so as to ensure that the steel plate material 38 at the blanking position does not move horizontally, and the other end of the steel plate material 38 rotates with the feeding roller 20 under the action of the pulling force.

[0045] 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.

[0046] 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 resets under the action of its own elasticity and simultaneously drives the feeding roller 20 at the other end to rotate, thus completing the horizontal phase displacement of the steel plate material 38.

[0047] 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 storage torsional spring 41 stores elastic force to make the ratchet ring 22 have a rotating tendency. At the same time, the rotating resistance of the feeding roller 20 near the fixed seat 23 is increased to avoid the problem that the force storage torsional spring 41 directly drives the steel plate material 38 to continuously move horizontally. The force storage turntable 40 can be manually or by other means to rotate to store the force of the force storage torsional spring 41. The stored force can be used for a period of time.

[0048] 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 apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0049] 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 blanking device for precision forging processing, characterized by: The invention comprises a pneumatic expansion mechanism (1), an automatic feeding mechanism (2), an elastic buffer mechanism (3), a punching mechanism (4) and a lower die (30), wherein the elastic buffer mechanism (3) is arranged in an array on the punching mechanism (4), the lower die (30) is arranged on the elastic buffer mechanism (3), the automatic feeding mechanism (2) is arranged on the punching mechanism (4), and the pneumatic expansion mechanism (1) is arranged on the punching mechanism (4); The automatic feeding mechanism (2) comprises a one-way limiting assembly (17) and a bending support assembly (18), wherein the one-way limiting assembly (17) is provided with two groups, and the two groups of one-way limiting assemblies (17) are respectively located on both sides of the air pressure expansion mechanism (1), one group of one-way limiting assemblies (17) is provided on the bending support assembly (18), and the other group of one-way limiting assemblies (17) is provided on the lower mold (30); The pneumatic expansion mechanism (1) includes an elastic support component (5) and an automatic vacuum component (6), wherein the automatic vacuum component (6) is arranged at the end of the elastic support component (5), and the elastic support component (5) includes a hinged platform (7), a pneumatic sleeve (8), a pneumatic push rod (9) and a reset spring (39), wherein the hinged platform (7) is symmetrically arranged on the blanking processing mechanism (4), and the pneumatic sleeve (8) is rotatably arranged on the hinged platform (7), and an angle limiting portion (13) for limiting the angle of the pneumatic sleeve (8) is provided on the hinged platform (7), and the pneumatic push rod (9) is engaged and slidably arranged in the pneumatic sleeve (8), and the reset spring (39) is arranged between the pneumatic sleeve (8) and the pneumatic push rod (9).

2. The raw material blanking device for precision forging according to claim 1, characterized in that: The one-way limiting assembly (17) includes a roller support (19), a feed roller (20), a ratchet gear (21) and a ratchet ring (22). The feed roller (20) is rotatably arranged in the roller support (19). The steel plate material (38) is in rolling contact with the feed roller (20) under the extrusion of the feed roller (20). The ratchet gear (21) is fixed to both ends of the feed roller (20). The ratchet ring (22) is fixed to the roller support (19). Under the cooperation of the ratchet gear (21) and the ratchet ring (22), the feed roller (20) can only rotate in one direction.

3. The raw material blanking device for precision forging according to claim 2, characterized in that: The automatic feeding mechanism (2) further comprises a force storage turntable (40) and a force storage torsion spring (41); the force storage turntable (40) is arranged outside the roller support (19) via a bracket; and the force storage torsion spring (41) is arranged between the force storage turntable (40) and the ratchet gear (21).

4. The raw material blanking device for precision forging according to claim 3, characterized in that: The automatic vacuum assembly (6) includes a ball socket (10), an annular suction cup (11) and an elastic air tube (12). The end of the pneumatic push rod (9) is provided with a ball head (14). The ball socket (10) is rotatably arranged on the ball head (14). The annular suction cup (11) is fixedly connected to the bottom of the ball socket (10). The annular suction cup (11) is composed of a central rubber shoe (15) and an outer bowl-shaped cavity (16). The elastic air tube (12) is arranged between the bowl-shaped cavity (16) and the pneumatic sleeve (8).

5. The raw material blanking device for precision forging according to claim 4, characterized in that: The bending support assembly (18) includes a fixed seat (23), a steering roller bracket (24) and a steering support roller (25), wherein the fixed seat (23) is arranged on the blanking processing mechanism (4), one of the roller supports (19) is arranged on the fixed seat (23), and the other of the roller supports (19) is fixed to the lower mold (30) through a bracket, the steering roller bracket (24) is arranged on the fixed seat (23), and the steering support roller (25) is rotatably arranged on the steering roller bracket (24).

6. The raw material blanking device for precision forging according to claim 5, characterized in that: The blanking mechanism (4) comprises a pressure component (31) and a die component (32), wherein the die component (32) is arranged on the pressure component (31).

7. The raw material blanking device for precision forging according to claim 6, characterized in that: The pressure assembly (31) comprises a base plate (33), a frame (34) and a hydraulic cylinder (35); the frame (34) is arranged on the base plate (33); the hydraulic cylinder (35) is arranged on the frame (34); and the elastic buffer mechanism (3) and the fixing seat (23) are arranged on the base plate (33).

8. The raw material blanking device for precision forging according to claim 7, characterized in that: The mold assembly (32) includes a pressure platform (36) and a lower limit frame (37), the pressure platform (36) is arranged on the telescopic part of the hydraulic cylinder (35), the hinge platform (7) is symmetrically arranged on the side of the pressure platform (36), an upper mold matching the lower mold (30) is provided below the pressure platform (36), and the lower limit frame (37) is arranged on the bottom plate (33), and the lower limit frame (37) is located directly below the pressure platform (36).

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