Continuous hot-pressing upsetting machine tool and process
By designing continuous hot press forging machine tools and processes, using gas pressure and automated material collection systems, the problems of low production efficiency and difficult to control molding accuracy of traditional forging methods are solved, and an efficient and automated hot press forging process is achieved.
Patent Information
- Application Number
- CN202411979708.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-03-14
AI Technical Summary
The traditional forging method has low production efficiency and difficult to control the molding accuracy, resulting in low product size and shape accuracy, and manual material removal requires manual material removal, which is time-consuming and labor-intensive.
A continuous hot press forging machine tool and process is designed, using components such as upper and lower molds, electric heating rings, air intake pipes and feed rods to automatically discharge through gas pressure, and continuous processing and automatic material collection using material storage tanks and feed rods.
It realizes automatic discharge, saves manpower, shortens discharge time, improves product quality and production efficiency, and reduces waste rate and manual operation risks.
Smart Images

Figure CN119609028A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of hot press upsetting, and in particular to a continuous hot press upsetting machine tool and process. Background Art
[0002] In the traditional forging field, intermittent forging is often used for the forming of metal materials. For example, in ordinary free forging, the shape of the blank is changed by a single blow or pressure on the blank through manual operation or simple mechanical devices. This method has low production efficiency because there is an interval between each forging action, and it takes time to reposition the blank and adjust the die.
[0003] The traditional forging process also has certain problems in terms of forming accuracy. Due to the discontinuity of the forging action, it is difficult to ensure that the force and position of each blow or pressure are completely consistent, which makes it difficult to control the size and shape accuracy of the final product at a high level, and the material needs to be manually taken out, which is time-consuming and labor-intensive. Summary of the invention
[0004] The present invention provides a continuous hot press top forging machine tool and process, which solves the problems of low production efficiency and difficult precision control in the traditional forging method in the related art.
[0005] The technical solution of the present invention is as follows: A continuous hot press forging machine tool comprises an upper die base and a lower die base, wherein the lower die base has a mounting hole and a material storage tank, and further comprises: A lower mold is slidably disposed in the mounting hole, and a through hole is provided at the bottom of the lower mold; An upper mold is disposed on the upper mold base, and the upper mold is arranged corresponding to the lower mold; A ejector rod is slidably disposed in the through hole, and the through hole is communicated with the mounting hole; An air inlet pipe is arranged on the lower mold, one end of the air inlet pipe is connected to the bottom of the mounting hole, and the other end of the air inlet pipe is externally connected to a compressed air source. After the lower mold base moves downward, the gas in the mounting hole pushes the ejector rod to move upward.
[0006] Preferably, a feed channel is provided on the side wall of the lower mold, and after the lower mold moves, the lower mold blocks or cancels the blocking of the feed channel, and one end of the feed channel is connected to the mounting hole; further comprising: A material pipe is arranged on the side wall of the lower mold, the material pipe is connected with the feed channel, and the material pipe is arranged obliquely; A material discharge push rod is arranged on one side of the lower mold, and the material discharge push rod is used to push the material to be processed into the material tube.
[0007] Preferably, it also includes: A workbench, on which the upper mold and the lower mold are both arranged; A lifting rod is arranged on the workbench, a piston end of the lifting rod is arranged on the bottom surface of the lower mold, and the lifting rod is used to drive the lower mold to slide along the axial direction of the mounting hole.
[0008] Preferably, it also includes: An electric heating ring is arranged on the lower mold, and the electric heating ring is arranged concentrically with the mounting hole, and the height of the electric heating ring is smaller than the length of the upper mold.
[0009] Preferably, the material storage trough is in the shape of a U-shaped figure, and the material storage trough is arranged around the outer side of the mounting hole, and the material storage trough is used to receive processed parts.
[0010] Preferably, it also includes: A frame, arranged on one side outside the workbench; A lifting drive member is arranged on the frame; A guide rail is arranged on the driving end of the lifting drive member, and the length direction of the guide rail is perpendicular to the axis direction of the lower mold; There are several material picking rods, and the several material picking rods are all swung in the horizontal direction and slidably arranged on the guide rail. The material picking rods have adsorption heads or clamping heads, and are used to pick up materials located in the storage tank.
[0011] Preferably, it also includes: The pulling rod is semicircular in shape and has two protruding ends. Each of the protruding ends is slidably abutted against the surface of the material storage trough. The pulling rod is used to pull the material in the material storage trough out of the lower die seat.
[0012] Preferably, it also includes: A tray is lifted and arranged on the frame, and the tray is used to hold processed parts.
[0013] Preferably, the ejector rod is in an I-shape, and further comprises: A stopper is arranged on the inner side wall of the through hole, the stopper is located on one side of the middle part of the ejecting rod, and the stopper is used to limit the longitudinal movement of the ejecting rod.
[0014] A continuous hot press upset forging process comprises the following steps: Step 1: The lower mold descends to the bottom of the mounting hole, and the material enters the lower mold through the material pipe; Step 2: The lower mold drives the workpiece to be processed to move to the surface of the lower mold; Step 3: The electric heating ring heats the material; Step 4: The upper die is moved downward to perform hot pressing forging on the workpiece; Step 5: Compressed air is introduced into the air inlet pipe, the lower mold moves downward to squeeze the compressed air in the installation hole, the ejector rod moves upward, and the material is ejected; Step 6: The material falls into the storage trough and the material is taken out by the material taking rod.
[0015] The working principle and beneficial effects of the present invention are: When processing the material, the present invention has the lower mold at a high position. When the processing instruction is issued, the lower mold slides down along the mounting hole to the bottom, and then the material falls into the lower mold. Then the lower mold moves up, and the upper mold cooperates with the lower mold to process the material. After the processing is completed, the lower mold seat is driven to move down, and the gas in the mounting hole is pressurized. Under the action of the gas pressure, the ejector rod is pushed up quickly, and the workpiece is ejected from the lower mold and falls into the storage tank, completing a discharge action; then the lower mold resets and rises to prepare for the next round of processing. The movements of each component are closely connected and the operation is cyclic. Automatic discharge is realized, manpower is saved, and the discharge time is greatly shortened; the mold is accurately positioned, effectively improving product quality and production efficiency, and reducing the scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.
[0017] Figure 1 It is a schematic diagram of the internal structure of the machine tool of the present invention; Figure 2 for Figure 1 A partial enlarged view of the middle part; Figure 3 This is a schematic diagram of the positional relationship between the blanking push rod and the lower die base of the present invention; Figure 4 It is a schematic diagram of the structure of the lower mold and the lower mold base of the present invention; Figure 5 It is a schematic diagram of the overall structure of the machine tool of the present invention; Figure 6 for Figure 5 A partial enlarged view of point B in the middle; Figure 7 for Figure 5 A partial enlarged view of point C in the middle.
[0018] In the figure: 1. upper die base; 2. lower die base; 201. material storage trough; 2021. through hole; 202. mounting hole; 203. feed channel; 3. workbench; 4. upper die; 5. electric heating ring; 6. ejector rod; 7. stopper; 8. material pipe; 9. lower die; 10. air outlet; 11. air inlet pipe; 12. ejector push rod; 13. lifting rod; 14. frame; 15. lifting drive member; 16. guide rail; 17. material taking rod; 18. material pulling rod; 1801. protruding end; 19. tray; 20. cutting piece. DETAILED DESCRIPTION In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.
[0019] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".
[0020] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0021] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0022] Reference Figure 1 to Figure 7, is an embodiment of the present invention, and proposes a continuous hot press forging machine, including an upper die base 1 and a lower die base 2, the lower die base 2 has a mounting hole 202 and a material storage tank 201, and also includes a lower die 9, the lower die 9 is slidably set in the mounting hole 202, and the bottom of the lower die 9 has a through hole 2021; the upper die 4 is set on the upper die base 1, and the upper die 4 and the lower die 9 are arranged correspondingly; the ejector rod 6 is slidably set in the through hole 2021, and the through hole 2021 is connected with the mounting hole 202; the air inlet pipe 11 is set on the lower die 9, one end of the air inlet pipe 11 is connected with the bottom of the mounting hole 202, and the other end of the air inlet pipe 11 is externally connected to a compressed air source. After the lower die base 2 moves downward, the gas in the mounting hole 202 pushes the ejector rod 6 to move upward.
[0023] In the above scheme, the present invention is applicable to hot press forging of small and medium-sized parts. The upper die seat 1 is raised and lowered directly above the lower die 9, and the material storage trough 201 is arranged around the outside of the mounting hole 202 to facilitate receiving the parts ejected after forging. The mounting hole 202 is a sliding guide for the lower die 9, ensuring that the lower die 9 can be lifted and slid smoothly along the axis of the mounting hole 202 to ensure the movement accuracy. The through hole 2021 of the lower die 9 is connected to the mounting hole 202, and cooperates with the ejection rod 6 to realize automatic discharge by gas pressure, so as to realize continuous hot press forging; the upper and lower dies 9 are arranged correspondingly to ensure uniform force during forging and stable plastic deformation of the metal. Compared with traditional free forging dies, the positioning accuracy is significantly improved.
[0024] Working process: Initially, the lower mold 9 is at a high position. When the processing instruction is issued, the lower mold 9 slides down along the mounting hole 202 to the bottom, and then the material falls into the lower mold 9. Then the lower mold 9 moves up, and the upper mold 4 cooperates with the lower mold 9 to process the material. After the processing is completed, the lower mold base 2 is driven to move down, and the gas in the mounting hole 202 is pressurized. Under the action of the gas pressure, the ejector rod 6 is pushed up quickly, and the workpiece is ejected from the lower mold 9 and falls into the storage tank 201, completing a discharge action; then the lower mold 9 resets and rises to prepare for the next round of processing. The movements of each component are closely connected and the operation is cyclic. Automatic discharge is realized, manpower is saved, and the discharge time is greatly shortened; the mold is accurately positioned, effectively improving product quality and production efficiency, and reducing the scrap rate.
[0025] Furthermore, a feed channel 203 is provided on the side wall of the lower mold 9. After the lower mold 9 moves, the lower mold 9 blocks or unblocks the feed channel 203, and one end of the feed channel 203 is connected to the mounting hole 202; it also includes a material pipe 8 arranged on the side wall of the lower mold 9, the material pipe 8 is connected to the feed channel 203, and the material pipe 8 is arranged at an angle; a material discharge push rod 12 is arranged on one side of the lower mold 9, and the material discharge push rod 12 is used to push the material to be processed into the material pipe 8.
[0026] It should be noted that the lower die 9 also has several circular holes with smaller diameters around it, which can be ventilated and used to clean the oxide layer residues produced by forging on the lower die 9. The diameter of the circular hole is small, and the circular hole can be closed when discharging the material. The specific closing method is that an electromagnetic valve is provided at the bottom or inside of the circular hole.
[0027] In the above scheme, the cross section of the feed channel 203 on the side wall of the lower die 9 is rectangular or circular, and the inner wall of the channel is smooth to reduce the resistance of feeding; the material tube 8 is a U-shaped tube, tilted at a certain angle, and firmly welded to the feed channel 203 to ensure smooth material flow. The material is put into the next one after each processing. The feed push rod 12 adopts an electric push rod, which is installed on the side of the lower die 9 to ensure that the material can be pushed to the material tube 8 smoothly. When the lower die 9 rises to the working position, the feed channel 203 is blocked by the side wall of the lower die 9 to prevent the material located in the feed channel 203 from jamming the lower die 9 during forging; when it descends to the feeding position, the channel is opened and the material enters smoothly. The feed channel 203, the material tube 8 and the feed push rod 12 constitute a feeding system, and the feeding timing cooperates with the lifting action of the lower die 9 to realize continuous feeding; the inclined material tube 8 uses gravity to assist feeding, and the structure is simple but very practical, avoiding the disadvantages of frequent manual feeding in traditional forging, and improving the overall processing continuity and personnel safety.
[0028] Working process: The machine tool starts to prepare for processing, the lower die 9 descends, the feed channel 203 opens, and the material push rod 12 pushes the material into the lower die 9 through the material pipe 8 and the feed channel 203; then the lower die 9 rises, the feed channel 203 is blocked, and the material in the lower die 9 moves up to the forging area for subsequent heating and forging processes, which are repeated in a cycle. The feeding efficiency is greatly improved, far exceeding the traditional intermittent forging feeding speed; ensuring the timeliness and stability of the blank supply, which is conducive to maintaining the rhythm of continuous production and reducing the idling time of the equipment due to untimely feeding.
[0029] Furthermore, it also includes a workbench 3, and the upper mold 4 and the lower mold 9 are both arranged on the workbench 3; the lifting rod 13 is arranged on the workbench 3, and the piston end of the lifting rod 13 is arranged on the bottom surface of the lower mold 9, and the lifting rod 13 is used to drive the lower mold 9 to slide axially along the mounting hole 202.
[0030] In the above scheme, the lifting rod 13 adopts a hydraulic cylinder, and the piston end is firmly connected to the bottom surface of the lower mold 9. The hydraulic cylinder can smoothly drive the lower mold 9 to slide axially along the mounting hole 202, and the speed can be adjusted to meet different processing requirements. The workbench 3 provides a solid and flat support platform for the mold to ensure the accuracy and stability of mold installation; the lifting rod 13 is a driving component of the lower mold 9. The hydraulic driving force is strong and the controllability is strong. With the high-precision guide rail 16, it ensures that the lower mold 9 slides smoothly and is accurately positioned, overcoming the unstable movement defects of traditional forging molds.
[0031] Working process: During processing, the hydraulic system is started, and the lifting rod 13 drives the lower die 9 down to the feeding position according to the preset program; after completing the corresponding action, it is driven to rise to the required height for forging and discharging. The whole action response is fast, stable and smooth, and it works in coordination with other actions of the machine tool. The die movement has high stability, which reduces the probability of product defects caused by die shaking and deviation, and improves the reliability of equipment operation.
[0032] Furthermore, it also includes an electric heating ring 5 , which is arranged on the lower mold 9 , and the electric heating ring 5 is arranged concentrically with the mounting hole 202 , and the height of the electric heating ring 5 is less than the length of the upper mold 4 .
[0033] In the above scheme, the electric heating ring 5 is arranged around the mounting hole 202 of the lower die 9, and has high concentricity with the mounting hole 202. The height is less than the length of the upper die 4, ensuring that the heating is concentrated on the blank area to avoid squeezing the electric heating ring 5 when the upper die 4 descends. The heating temperature is accurately set by the temperature control system, the heating rate is fast, and the temperature uniformity is good. The concentrically arranged electric heating ring 5 has a compact structure, accurately focuses on the blank heating area, and has high thermal efficiency; the nickel-chromium alloy material is resistant to high temperature and oxidation, has a long service life, and cooperates with the temperature control system to achieve accurate and stable temperature control, which is better than the extensive temperature control of the traditional forging heating method.
[0034] Working process: After the material extends out of the lower die 9, the electric heating ring 5 is immediately powered on to heat up until the blank reaches the set forging temperature, maintaining a constant temperature and waiting for the upper die 4 to press down for forging; after forging, the temperature is quickly cooled down to prepare for the next round of heating, which is efficient in coordination with the entire processing flow.
[0035] Furthermore, the material storage trough 201 is in the shape of a U-shaped figure. The material storage trough 201 is arranged around the outer side of the mounting hole 202. The material storage trough 201 is used to receive the processed parts.
[0036] In the above scheme, the material storage tank 201 is in the shape of a Chinese character "U", surrounds the mounting hole 202, and has a wear-resistant and impact-resistant surface. The forged workpiece is ejected and falls into the material storage tank 201. The depth of the tank is sufficient to accommodate the workpiece, ensuring that the material does not affect the hot press forging work, and at the same time, it can prevent the material from accumulating and overflowing. The Chinese character "U"-shaped material storage tank 201 fully utilizes the space around the lower die base 2 to maximize the storage capacity.
[0037] Working process: After the workpiece is ejected by the ejector rod 6, it naturally falls into the storage tank 201 by gravity and waits for subsequent material collection; during the processing, the storage tank 201 continues to collect workpieces without manual intervention until it is full or regularly cleaned, which does not affect the normal operation of the machine tool. Automatic collection of workpieces is achieved, reducing manual operation links and saving labor costs; avoiding damage to workpieces caused by falling to the ground, and improving product appearance quality and yield rate.
[0038] Furthermore, it also includes a frame 14, which is arranged on one side of the outside of the workbench 3; a lifting drive member 15 is arranged on the frame 14; a guide rail 16 is arranged on the driving end of the lifting drive member 15, and the length direction of the guide rail 16 is perpendicular to the axial direction of the lower mold 9; there are a plurality of material picking rods 17, and the plurality of material picking rods 17 are all swung in the horizontal direction and slidably arranged on the guide rail 16, and the material picking rod 17 has an adsorption head or a clamping head, and the material picking rod 17 is used to pick up the material located in the storage trough 201.
[0039] In the above scheme, the frame 14 is welded with channel steel, has a stable structure, and is installed on one side of the workbench 3. The lifting drive 15 uses a servo motor with a ball screw pair, and the drive end guide rail 16 is arranged along the vertical axis of the lower mold 9, with high straightness. There are two feeding rods 17, which are made of aluminum alloy to reduce weight. The end adsorption head is an electromagnetic suction cup or a negative pressure suction cup, and the suction force is reliable. After processing a batch of small shaft parts, the feeding rod 17 swings horizontally along the guide rail 16, slides and positions above the parts in the storage tank 201, and adsorbs the parts to the designated storage area, with rapid movement and accurate positioning. The frame 14 provides stable support for the lifting drive and feeding components; the servo drive is matched with a high-precision guide rail 16, giving the feeding rod 17 precise movement ability, and high positioning accuracy in the horizontal and vertical directions; the aluminum alloy feeding rod 17 is combined with the electromagnetic adsorption head, which is light and flexible, reliable adsorption, and adapts to the grabbing of workpieces of different shapes, and improves the degree of automation of material discharging.
[0040] Working process: After the workpiece falls into the storage tank 201, the lifting drive 15 drives the guide rail 16 to descend to a suitable height, and the material picking rod 17 swings horizontally and slides close to the workpiece as needed. The electromagnetic suction cup is energized to adsorb, and then rises and moves horizontally to place the workpiece on the tray 19 or other storage places to complete one material picking; then reset and cycle operation. The material picking automation greatly shortens the material discharging time, reduces manual contact with high-temperature workpieces, improves operation safety, and reduces labor intensity.
[0041] Furthermore, it also includes a pulling rod 18, which is semicircular and has two protruding ends 1801. Each protruding end 1801 slides against the surface of the material storage trough 201. The pulling rod 18 is used to pull the material in the material storage trough 201 out of the lower mold base 2.
[0042] In the above scheme, the pull rod 18 is semicircular, and the two protruding ends 1801 are inlaid with wear-resistant blocks, which slide against the surface of the storage tank 201. When forging large stamping die insert blanks, after a batch is processed, the pull rod 18 slides along the surface of the storage tank 201 under the action of the driving mechanism, and the blanks that may be stuck in the tank and adhered are smoothly pulled out of the lower die base 2, and the storage tank 201 is cleaned to ensure smooth subsequent processing. The semicircular design fits the shape of the storage tank 201, and the wear-resistant blocks at the protruding ends 1801 not only protect the storage tank 201 and the pull rod 18 itself, but also enhance the friction and effectively clean the residual workpieces; it has a simple structure and low cost, and is a key auxiliary component to ensure the continuous normal operation of the storage tank 201.
[0043] Working process: Periodically or when it is detected that the material storage tank 201 is not discharging smoothly, the pulling rod 18 starts to slowly slide along the surface from one end of the material storage tank 201 to the other end, bringing out the accumulated and stuck workpieces, and automatically returns to its original position after cleaning, without interfering with the normal processing flow. Maintaining the good working condition of the material storage tank 201, reducing the probability of equipment downtime due to material blockage; extending the cleaning cycle of the material storage tank 201, reducing equipment maintenance hours, and improving the overall operation efficiency of the equipment.
[0044] Furthermore, it also includes a tray 19, which is lifted and lowered on the frame 14, and the tray 19 is used to hold processed parts.
[0045] In the above scheme, the tray 19 is made of stainless steel plate and is installed on the frame 14 through an electric lifting device, which is accurately positioned. When collecting forged materials, the material picking rod 17 places the workpiece on the tray 19, and the tray 19 is raised and lowered in time according to the stacking height of the workpiece to ensure that the workpiece is stored stably.
[0046] Working process: As workpieces are continuously placed on the tray 19, the electric lifting device is manually controlled to move, and the tray 19 rises or falls steadily; after being filled or processed, the tray 19 drops to the lowest position to facilitate the overall transportation of the workpieces. The workpieces are stored in an orderly manner and the manual sorting time is reduced.
[0047] Specifically, a cutting member is provided on a side of the frame 14 away from the tray 19, specifically a cutter that can be raised and lowered, and the cutter can cut excess corners of the processed material.
[0048] Furthermore, the ejector rod 6 is in an I-shape and further includes a stopper 7, which is disposed on the inner wall of the through hole 2021. The stopper 7 is located on one side of the middle portion of the ejector rod 6. The stopper 7 is used to limit the longitudinal movement of the ejector rod 6.
[0049] In the above scheme, the ejector rod 6 is in an I-shape, and the stopper 7 is welded to the inner wall of the through hole 2021 to limit the longitudinal movement of the ejector rod 6. After the processing is completed, compressed air is introduced into the air inlet pipe 11, and the ejector rod 6 is pushed by the gas to stably move upward and eject the workpiece. The ejector rod 6 is limited by the stopper 7 and will not pop out of the through hole 2021.
[0050] Working process: At the moment of forging completion, compressed air flows into the mounting hole 202, pushing the ejector rod 6 to overcome the gravity and friction of the material and move upward until it is blocked by the stopper 7, completing the material discharge; then the gas is discharged, and the ejector rod 6 returns to its position, ready for the next work.
[0051] A continuous hot press upset forging process comprises the following steps: Step 1: The lower mold 9 descends to the bottom of the mounting hole 202, and the material enters the lower mold 9 through the material pipe 8; Step 2: The lower mold 9 drives the workpiece to be processed to move to the surface of the lower mold 9; Step 3: The electric heating ring 5 heats the material; Step 4: The upper die 4 is moved downward to perform hot pressing forging on the workpiece; Step 5: Compressed air is introduced into the air inlet pipe 11, the lower mold 9 moves downward to squeeze the compressed air in the mounting hole 202, the ejector rod 6 moves upward, and the material is ejected; Step 6: The material falls into the material storage tank 201, and the material taking rod 17 takes the material.
[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.
Claims
1. A continuous hot press forging machine tool, comprising an upper die base (1) and a lower die base (2), characterized in that: The lower die base (2) has a mounting hole (202) and a material storage groove (201), and further includes: A lower die (9), slidably disposed within the mounting hole (202), and having a through hole (2021) at the bottom of the lower die (9); An upper die (4), disposed on the upper die base (1), and the upper die (4) is arranged corresponding to the lower die (9); A knockout rod (6), slidably disposed within the through hole (2021), and the through hole (2021) communicates with the mounting hole (202); An air inlet pipe (11), disposed on the lower die (9), one end of the air inlet pipe (11) communicates with the bottom of the mounting hole (202), the other end of the air inlet pipe (11) is externally connected to a compressed air source, and after the lower die base (2) moves downward, the gas within the mounting hole (202) enters the through hole (2021) and then pushes the knockout rod (6) upward.
2. A continuous hot press forging machine according to claim 1, characterized in that: The side wall of the lower die (9) has a feed channel (203), and after the lower die (9) moves, the lower die (9) blocks or cancels blocking of the feed channel (203), and one end of the feed channel (203) communicates with the mounting hole (202); further includes: A material pipe (8), disposed on the side wall of the lower die (9), the material pipe (8) communicates with the feed channel (203), and the material pipe (8) is arranged obliquely; A blanking push rod (12), disposed on one side of the lower die (9), and the blanking push rod (12) is used to push a workpiece to be processed into the material pipe (8).
3. The continuous hot press forging machine tool according to claim 1, characterized in that: Further includes: A workbench (3), on which both the upper die (4) and the lower die (9) are disposed; A lifting rod (13), disposed on the workbench (3), and the piston end of the lifting rod (13) is disposed on the bottom surface of the lower die (9), and the lifting rod (13) is used to drive the lower die (9) to slide along the axial direction of the mounting hole (202).
4. The continuous hot press forging machine tool according to claim 1, characterized in that: Further includes: An electric heating ring (5), disposed on the lower die (9), and the electric heating ring (5) is concentrically arranged with the mounting hole (202), and the height of the electric heating ring (5) is less than the length of the upper die (4).
5. The continuous hot press forging machine tool according to claim 1, characterized in that: The material storage groove (201) is in a shape of a double-square frame, the material storage groove (201) is arranged around the outside of the mounting hole (202), and the material storage groove (201) is used to receive the processed workpieces.
6. The continuous hot press forging machine tool according to claim 3, characterized in that: Further includes: A frame (14), disposed on the outer side of one side of the workbench (3); A lifting driving member (15), disposed on the frame (14); A guide rail (16), disposed on the driving end of the lifting driving member (15), and the length direction of the guide rail (16) is perpendicular to the axial direction of the lower die (9); There are a plurality of material taking rods (17), and the plurality of material taking rods (17) all swing in the horizontal direction and are slidably disposed on the guide rail (16), the material taking rod (17) has an adsorption head or a clamping head, and the material taking rod (17) is used to pick up the workpieces located within the material storage groove (201).
7. The continuous hot press forging machine tool according to claim 1, characterized in that: Further includes: The pulling rod (18) is semicircular in shape and has two protruding ends (1801). Each of the protruding ends (1801) is slidably abutted against the surface of the material storage trough (201). The pulling rod (18) is used to pull the material in the material storage trough (201) out of the lower die base (2).
8. The continuous hot press forging machine tool according to claim 6, characterized in that: Also includes: A tray (19) is arranged on the frame (14) in a lifting manner, and the tray (19) is used to hold processed parts.
9. The continuous hot press forging machine tool according to claim 1, characterized in that: The ejector rod (6) is in an I-shape and further comprises: A stopper (7) is arranged on the inner wall of the through hole (2021), the stopper (7) being located on one side of the middle portion of the ejecting rod (6), and the stopper (7) is used to limit the longitudinal movement of the ejecting rod (6).
10. A continuous hot press upsetting process, according to a continuous hot press upsetting machine tool according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: The lower mold (9) descends to the bottom of the mounting hole (202), and the material enters the lower mold (9) through the material pipe (8); Step 2: The lower mold (9) drives the workpiece to be processed to move to the surface of the lower mold (9); Step 3: The electric heating ring (5) heats the material; Step 4: The upper die (4) moves downward to perform hot pressing forging on the workpiece; Step 5: Compressed air is introduced into the air inlet pipe (11), the lower mold (9) moves downward to squeeze the compressed air in the mounting hole (202), the ejector rod (6) moves upward, and the material is ejected; Step 6: The material falls into the material storage trough (201), and the material taking rod (17) takes the material.
Citation Information
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