Alloy steel forging multi-position positioning die

Abstract

The utility model discloses a kind of multi-station positioning mould for alloy steel forging, belong to alloy steel forging technical field, including forging die and forging hammer head, forging hammer head is set to the top of forging die, the upper side of forging die is provided with at least two bar forging V-shaped support seat, the lower side of forging die is provided with bottom plate, the side of forging hammer head is provided with support assembly, guiding positioning assembly is set between forging die and forging hammer head, guiding positioning assembly is set in guiding positioning assembly for providing accurate positioning to forging hammer head, prevent forging from deviating.This utility model, by setting guiding positioning assembly, ensure that forging hammer head always keeps accurate perpendicular centering relationship with forging die in whole stroke, to prevent forging from deviating, make forging hammer head positioning accurate, ensure the dimensional accuracy and shape consistency of forging forming, improve product quality, avoid the one-sided wear of mould caused by hammer head deviation.

Description

Technical Field

[0001] This utility model relates to a multi-station positioning mold for alloy steel forging, belonging to the field of alloy steel forging technology. Background Technology

[0002] In alloy steel forging, the die is the core equipment that determines the precision of the forging, production efficiency, and operational safety. With the increasing demand for alloy steel forgings in the manufacturing industry, single-station dies, which can only process one forging at a time, are no longer able to meet the needs of large-scale production. Multi-station forging dies have gradually become the industry mainstream. By setting multiple bar forging V-shaped support seats in the forging die, multiple alloy steel billets can be forged in parallel, which greatly increases the output of forgings per unit time.

[0003] The existing mold guiding mechanism is relatively simple, relying only on the cooperation between the column and the guide sleeve. When subjected to huge, especially eccentric, impact loads, this guiding method is prone to slight deviation of the hammer movement trajectory due to increased gap or insufficient rigidity. This leads to deviation in the positioning of the forging hammer. This deviation will not only cause the forging to exceed the dimensional tolerance and irregular shape, affecting the consistency of product precision, but will also cause uneven wear on one side of the mold, significantly shortening the service life of the mold, and may even cause early cracking failure of the mold due to stress concentration. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a multi-station positioning mold for alloy steel forging.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A multi-station positioning die for alloy steel forging includes a forging die and a forging hammer. The forging hammer is positioned above the forging die. At least two bar forging V-shaped support seats are provided on the upper side of the forging die. A base plate is provided on the lower side of the forging die. A support component is provided on one side of the forging hammer. A guide positioning component is provided between the forging die and the forging hammer. The guide positioning component is used to provide precise positioning for the forging hammer and prevent forging deviation.

[0006] With the above technical solution, during the forging operation, the alloy steel bar to be processed can be placed on at least two V-shaped support seats to achieve multi-station and stable support. The forging hammer moves downward under the drive of the drive device to forge the bar. During this process, the guide positioning component set between the forging die and the forging hammer starts to work, providing forced constraint and guidance for the up and down movement of the forging hammer.

[0007] By setting at least two V-shaped support seats, multi-point support for long bars is achieved, which not only improves the positioning stability of the bars before forging and avoids warping caused by factors such as cantilever, but also allows for sequential or selective forging of bar segments at different positions on the same die, realizing multi-station operation and improving equipment utilization and production efficiency.

[0008] Preferably, the support assembly includes a side plate disposed on one side of the base plate, a support rod disposed on the upper side of the side plate, a top plate disposed on the upper side of the support rod, and a positioning guide hole disposed on the upper side of the top plate.

[0009] Through the above technical solution, the support rod lifts the top plate high, forming a stable upper support point, and the positioning guide hole on the top plate provides a precise positioning reference for the guide component described later.

[0010] Preferably, the guide positioning assembly includes two guide positioning racks, which are respectively fixedly connected to both sides of the forging hammer. A vertical plate is provided on the upper side of the base plate, and a transmission gear is provided on one side of the vertical plate. The transmission gear is meshed with the guide positioning racks.

[0011] With the above technical solution, when the forging hammer moves up and down, the guide positioning racks fixed on both sides move synchronously. The racks mesh with the transmission gears mounted on the vertical plate. The meshing of the gears and racks is a transmission method with no or very small gaps, which can accurately convert the linear motion of the hammer into the rotational motion of the gears, while limiting the movement trajectory of the hammer.

[0012] Preferably, a traction guide rack is meshed with one side of the transmission gear, a U-shaped protective frame is connected to the bottom end of the traction guide rack, the U-shaped protective frame is slidably connected to one side of the forging die, a disassembly plate is provided on one side of the U-shaped protective frame, and the top end of the traction guide rack matches the positioning guide hole, which is used to guide the traction guide rack.

[0013] With the above technical solution, when the transmission gear rotates, its other side simultaneously meshes with the traction guide rack. The up-and-down movement of the forging hammer head, through the transmission of the racks on both sides and the middle gear, will drive the traction guide rack to move up and down in the opposite direction. The top of the traction guide rack passes through the positioning guide hole on the top plate, which precisely guides and constrains its movement. The U-shaped protective frame can then be used for forging protection.

[0014] Preferably, a forging positioning groove is provided on the upper side of the forging die, a forging positioning plate is provided on the lower side of the forging hammer and opposite to the forging positioning groove, and a through hole is provided on one side of the forging positioning groove.

[0015] With the above technical solution, at the moment of forging, the forging positioning plate on the lower side of the forging hammer head will be embedded in the forging positioning groove on the upper side of the forging die, and the through hole can be used to discharge any residual oxide scale or impurities.

[0016] The combination of the forging positioning plate and the positioning groove plays a role in precise positioning at the final moment of forging, ensuring that the forging force is vertically downward and improving the quality of the forging.

[0017] Preferably, a buffer groove is provided at the upper corner of the forging die, a positioning buffer plate is provided on the lower side of the forging hammer and opposite to the buffer groove, a buffer spring is provided in the buffer groove, and a push block is provided at the top of the buffer spring.

[0018] With the above technical solution, when the hammer head descends and approaches the mold but has not yet contacted the workpiece, the positioning buffer plate will first contact the push block at the top of the buffer spring, and the spring will be compressed to achieve buffering. When the hammer head returns, the compressed spring releases energy and pushes the positioning buffer plate slightly up through the push block, which helps to eliminate transmission gaps and ensure the consistency and stability of the hammer head's starting position.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, by setting a guide and positioning component, ensures that the forging hammer maintains a precise vertical alignment with the forging die throughout its entire stroke, thereby preventing forging deviation, ensuring accurate positioning of the forging hammer, guaranteeing the dimensional accuracy and shape consistency of the forging, improving product quality, avoiding unilateral die wear caused by hammer deviation, significantly extending the die's service life, and enhancing the safety and stability of equipment operation.

[0020] This invention effectively absorbs the impact energy of the hammer falling during its idle stroke by setting up a buffer groove, a positioning buffer plate, a buffer spring, and a push block. This reduces the vibration and noise of the equipment in the non-forging state, protects the precision guide mechanism and the mold itself, and provides a pre-tightening effect during the return stroke by the spring's restoring force. This helps to ensure that the entire moving part fits tightly, eliminates backlash, and thus ensures the accurate starting point of the next forging stroke, improving the smoothness and control accuracy of the equipment's movement. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1This is a schematic diagram of the front axonometric structure of this utility model; Figure 2 This is a front-section axial side view of the present invention. Figure 3 This is a schematic diagram of the axial structure on the back side of this utility model.

[0023] In the diagram: 1. Forging die; 2. Forging hammer; 3. Base plate; 4. Guide positioning rack; 5. Vertical plate; 6. Transmission gear; 7. Traction guide rack; 8. U-shaped protective frame; 9. Assembly / disassembly plate; 10. Side plate; 11. Support rod; 12. Top plate; 13. Positioning guide hole; 14. Forging positioning groove; 15. Forging positioning plate; 16. Positioning buffer plate; 17. Buffer spring; 18. Push block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-3 This utility model provides a technical solution: A multi-station positioning mold for alloy steel forging includes a forging mold 1 and a forging hammer 2. The forging hammer 2 is positioned directly above the forging mold 1 and is driven by an external drive device to perform vertical reciprocating motion.

[0026] At least two bar forging V-shaped support seats are fixedly installed on the upper side of the forging die 1 by bolts to support the alloy steel bar to be forged.

[0027] The arrangement of multiple V-shaped support seats enables multi-point and stable support for long bars, facilitating multi-station sequential forging.

[0028] A base plate 3 is fixedly installed on the lower side of the forging die 1 by bolts. In order to ensure that the forging hammer 2 can maintain a precise movement trajectory under high-speed impact and prevent the forging precision from decreasing and the die from wear due to deviation, a guide positioning component is provided between the forging die 1 and the forging hammer 2.

[0029] The guide positioning assembly includes two guide positioning racks 4, which are vertically fixed to the left and right sides of the forging hammer head 2 by high-strength bolts. On the upper side of the base plate 3, inside the two guide positioning racks 4, a vertical plate 5 is fixedly installed on each side. A transmission gear 6 is rotatably mounted on one side of each vertical plate 5 via a shaft and bearing.

[0030] The transmission gear 6 meshes with the guide positioning rack 4 on the same side to form a gear and rack transmission pair.

[0031] When the forging hammer 2 moves up and down, the high rigidity of the meshing of the guide positioning rack 4 and the transmission gear 6 forces the forging hammer 2 to be constrained in the left and right directions, thereby achieving precise guidance and positioning.

[0032] A support assembly is provided on one side of the forging hammer head 2. The support assembly includes a side plate 10. A support rod 11 is vertically welded to the upper side of the side plate 10. A top plate 12 is supported and fixed at the upper end of the support rod 11. A positioning guide hole 13 is provided on the upper side of the top plate 12.

[0033] The guiding and positioning assembly also includes a traction guide rack 7, which is located on the same side as the support assembly and meshes with the other side of the transmission gear 6 on the same side. When the forging hammer 2 moves downward, it drives the transmission gear 6 to rotate through the guide positioning rack 4 on one side, and the transmission gear 6 drives the traction guide rack 7 to move upward, and vice versa.

[0034] The bottom end of the traction guide rack 7 is fixedly connected to the inner top surface of a U-shaped protective frame 8. The side wall of the U-shaped protective frame 8 is slidably connected to the side wall of the forging mold 1, so that the U-shaped protective frame 8 can slide smoothly in the vertical direction. A disassembly plate 9 is fixed to one side of the U-shaped protective frame 8 by screws.

[0035] The top of the traction guide rack 7 extends upward and passes through the positioning guide hole 13 on the top plate 12. A wear-resistant bushing can be installed in the positioning guide hole 13 to form a sliding fit with the traction guide rack 7, thereby providing precise top guidance for its movement.

[0036] A forging positioning groove 14 is machined at the center of the upper side of the forging die 1. A forging positioning plate 15 is fixed by bolts at the lower side of the forging hammer 2 and at the position directly opposite to the forging positioning groove 14.

[0037] One side of the forging positioning groove 14 is provided with a through hole to discharge air and impurities such as oxide scale that may exist during the forging process.

[0038] A buffer groove is provided at each of the four corners on the upper side of the forging mold 1. A positioning buffer plate 16 is fixed on the lower side of the forging hammer 2 and at the position directly opposite each buffer groove.

[0039] A buffer spring 17 is placed in each buffer slot, and a pusher block 18 is provided at the top of the buffer spring 17.

[0040] When the forging hammer 2 descends to near the mold, the positioning buffer plate 16 first contacts and compresses the buffer spring 17, which plays a buffering role; when the forging hammer 2 returns, the buffer spring 17 resets, and the push block 18 gives the positioning buffer plate 16 an upward force, which helps to return to its original position and eliminate the backlash.

[0041] The workflow of this embodiment is as follows: During operation, the alloy steel bar is placed on the V-shaped support seat, and the external drive device drives the forging hammer head 2 to move downward. During this process, the guide positioning racks 4 on both sides mesh with the transmission gear 6 to ensure that the hammer head moves vertically without swaying. At the same time, the transmission gear 6 drives the traction guide rack 7 to move in the opposite direction, and its top end slides in the positioning guide hole 13 of the top plate 12 to form a stable top constraint.

[0042] As the hammer continues to descend, the lower positioning buffer plate 16 first compresses the buffer spring 17 for buffering. Then, the forging positioning plate 15 contacts the workpiece and is forged. Finally, the forging positioning plate 15 is embedded in the forging positioning groove 14 to complete the precision forming. When the hammer returns, the buffer spring 17 assists in resetting.

[0043] During forging, the forging hammer 2 moves, the guide positioning rack 4 drives the transmission gear 6, the transmission gear 6 drives the traction guide rack 7, and then drives the U-shaped protective frame 8 to move, quickly blocking in front of the mold to protect against flying forging chips. The operator can remove the disassembly plate 9 for cleaning.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-station positioning die for alloy steel forging, comprising a forging die (1) and a forging hammer (2), wherein the forging hammer (2) is disposed above the forging die (1), characterized in that, The forging die (1) is provided with at least two bar forging V-shaped support seats on its upper side, and a base plate (3) is provided on the lower side of the forging die (1). A support component is provided on one side of the forging hammer (2). A guide positioning component is provided between the forging die (1) and the forging hammer (2). The guide positioning component is provided to provide precise positioning for the forging hammer (2) and prevent forging from deviating.

2. The multi-station positioning mold for alloy steel forging according to claim 1, characterized in that, The support assembly includes a side plate (10), which is disposed on one side of the base plate (3). A support rod (11) is disposed on the upper side of the side plate (10), and a top plate (12) is disposed on the upper side of the support rod (11). A positioning guide hole (13) is disposed on the upper side of the top plate (12).

3. The multi-station positioning mold for alloy steel forging according to claim 2, characterized in that, The guide positioning assembly includes two guide positioning racks (4), which are fixedly connected to both sides of the forging hammer (2). A vertical plate (5) is provided on the upper side of the base plate (3), and a transmission gear (6) is provided on one side of the vertical plate (5). The transmission gear (6) is meshed with the guide positioning racks (4) for transmission connection.

4. The multi-station positioning mold for alloy steel forging according to claim 3, characterized in that, One side of the transmission gear (6) is meshed with a traction guide rack (7), and the bottom end of the traction guide rack (7) is connected to a U-shaped protective frame (8). The U-shaped protective frame (8) is slidably connected to one side of the forging mold (1). A disassembly plate (9) is provided on one side of the U-shaped protective frame (8). The top end of the traction guide rack (7) matches the positioning guide hole (13), and the positioning guide hole (13) is used to guide the traction guide rack (7).

5. A multi-station positioning mold for alloy steel forging according to claim 1, characterized in that, The forging mold (1) is provided with a forging positioning groove (14) on its upper side, and a forging positioning plate (15) is provided on the lower side of the forging hammer (2) and opposite to the forging positioning groove (14). A through hole is provided on one side of the forging positioning groove (14).

6. The multi-station positioning mold for alloy steel forging according to claim 1, characterized in that, A buffer groove is provided at the upper corner of the forging mold (1), and a positioning buffer plate (16) is provided on the lower side of the forging hammer (2) and at the position opposite to the buffer groove. A buffer spring (17) is provided in the buffer groove, and a push block (18) is provided at the top of the buffer spring (17).

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