A double hammer lever forging machine device

Abstract

The present invention discloses a double-hammer lever-type forging machine device, which relates to the technical field of forging equipment, and includes a forging main machine and a reduction device. The forging main machine includes a frame, a hammer assembly, a swing arm assembly and a connecting rod assembly. The swing arm assembly includes a first vertical swing arm and a second vertical swing arm, and a support shaft is commonly provided at the middle position of the first vertical swing arm and the second vertical swing arm on the opposite side. In the present invention, the first vertical swing arm and the second vertical swing arm are connected by a support shaft to form a stable swing arm structure, and the first hammer and the second hammer fixed to the top of the first vertical swing arm and the second vertical swing arm effectively improve the radial dimensional accuracy and surface quality of the forging during movement. By adjusting the structural parameters or power input of the connecting rod assembly, the forging force applied by the hammer to the forging is accurately controlled, thereby achieving high-precision control of the shape and size of the forging, reducing production costs and production cycles, and extending the service life of the device.

Description

Technical Field

[0001] The invention relates to the technical field of forging equipment, in particular to a double-hammer lever-type forging machine device. Background Art

[0002] In the metal forging industry, with the continuous advancement of industrial technology and the continued growth in the manufacturing industry's demand for high-precision, high-performance metal products, traditional forging equipment and processes have gradually exposed many limitations.

[0003] It is difficult for the existing old-fashioned forging equipment to accurately control the size and quality of forgings during the forging process. When in use, the movement trajectory and striking force of the hammer head are not easy to adjust accurately, which leads to deviations in the radial size of the forgings and difficulty in ensuring the surface flatness. A large amount of subsequent processing is required to correct it, which increases the production cost and production cycle. In addition, the power transmission system of the traditional forging equipment adopts belt drive, gear drive and other methods. In long-term and high-intensity forging operations, it is easy to cause unstable power transmission and energy loss due to friction, wear and vibration, affecting the forming quality of the forgings; gear drive may produce gaps due to tooth surface wear, causing impact and noise during the transmission process, further reducing the reliability and service life of the equipment.

[0004] In view of this, the present invention is proposed to solve the above technical problems. Summary of the invention

[0005] In order to achieve the above object, the present invention is achieved through the following technical solutions: A double-hammer lever-type forging machine device includes a forging main machine and a reduction device. The forging main machine includes a frame, a hammer assembly, a swing arm assembly and a connecting rod assembly. The swing arm assembly includes a first vertical swing arm and a second vertical swing arm, and a support shaft is commonly provided at the middle position of the opposite side of the first vertical swing arm and the second vertical swing arm.

[0006] The hammer assembly is arranged on the top of the hammer assembly, the top of the first vertical swing arm is fixedly connected with the first hammer, and the top of the second vertical swing arm is fixedly connected with the second hammer.

[0007] A connecting rod assembly is arranged at the middle position of the bottom of the swing arm assembly, and the connecting rod assembly includes a bent rod arranged at the middle position of the bottom on the opposite side of the first vertical swing arm and the second vertical swing arm, and the first connecting rod and the second connecting rod are installed on the upper part of the bent rod at equal intervals and staggered rotation along the length direction, and the first core shaft and the second core shaft are respectively installed on the inner bottom of the first vertical swing arm and the second vertical swing arm, and the end of the first connecting rod is fixedly connected to the first core shaft, and the end of the second connecting rod is fixedly connected to the second core shaft.

[0008] Further preferably, a placement groove is provided on the opposite side of the top of the first vertical swing arm and the second vertical swing arm, and the first hammer head and the second hammer head are both arranged inside the placement groove.

[0009] More preferably, forging holes are provided on opposite sides of the first hammer head and the second hammer head along the length direction.

[0010] Further preferably, a thrust roller bearing is installed on one end of the support shaft surface, and a third sliding bearing is installed on the end of the support shaft.

[0011] Further preferably, the end of the crankshaft is mounted on the power output end of the reduction device through two self-aligning cylindrical roller bearings.

[0012] Further preferably, the first mandrel and the second mandrel are both provided with a first sliding bearing, and the bent rod is provided with a second sliding bearing.

[0013] Further preferably, the opposite ends of the first connecting rod and the second connecting rod are rotatably connected to the curved rod via second sliding bearings respectively.

[0014] Further preferably, opposite ends of the first connecting rod and the second connecting rod are rotatably connected to the first core shaft and the second core shaft respectively through a first sliding bearing.

[0015] More preferably, the crank angles at both ends of the crankshaft are consistent and symmetrically distributed with the angle at the middle position being 180°.

[0016] Compared with the prior art, the present invention has the following advantages: the first vertical swing arm and the second vertical swing arm are connected by a supporting shaft to form a stable swing arm structure, and the first hammer head and the second hammer head fixed to the top of the first vertical swing arm and the second vertical swing arm effectively improve the radial dimensional accuracy and surface quality of the forging during movement, and the curved rod, the first connecting rod and the second connecting rod in the connecting rod assembly are rotatably connected with the core shaft at the bottom of the swing arm through a sliding bearing, so that the power loss during transmission is small and the direction and magnitude of the force are easier to control, and then in the forging process, according to the requirements of the forging, the forging force applied by the hammer head to the forging can be accurately controlled by adjusting the structural parameters of the connecting rod assembly or the power input, thereby achieving high-precision control of the shape and size of the forging, reducing the production cost and production cycle, and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of this embodiment; Figure 2 is a schematic cross-sectional structural diagram of this embodiment; Figure 3 It is a schematic diagram of the connection structure of the crankshaft, connecting rod assembly and swing arm assembly of this embodiment.

[0018] Figure numerals: 1. first hammer head; 2. second hammer head; 3. first vertical swing arm; 4. second vertical swing arm; 5. support shaft; 6. thrust roller bearing; 7. first connecting rod; 8. first core shaft; 9. second connecting rod; 10. self-aligning cylindrical roller bearing; 11. second core shaft; 12. curved rod; 13. first sliding bearing; 14. second sliding bearing; 15. third sliding bearing. DETAILED DESCRIPTION

[0019] The following is combined with Figures 1 to 3 The present invention is further described in detail.

[0020] A double hammer lever forging machine device, such as Figure 1 As shown, it includes a forging main machine and a reduction device. Further, the reduction device is composed of a motor, a transmission gear, a flywheel and a torque limiter. The forging main machine includes a frame, a hammer head assembly, a swing arm assembly and a connecting rod assembly. Furthermore, the motor serves as a power source to provide initial power for the operation of the entire device. The power output thereof is reasonably adjusted in speed and torque through the transmission gear to meet the requirements of different forging processes. The flywheel plays the role of energy storage and stable power output. When there is a slight fluctuation in the output power of the motor, it can maintain the stability of the entire power transmission system and ensure the continuity and stability of the forging process. The setting of the torque limiter can play a role in time when an abnormal torque overload occurs during the forging process to limit the further increase of the torque, thereby effectively protecting the various components of the device from damage, greatly improving the safety and reliability of the equipment operation. The swing arm assembly includes a first vertical swing arm 3 and a second vertical swing arm 4, and a support shaft 5 is commonly provided at the middle position of the first vertical swing arm 3 and the second vertical swing arm 4 on the opposite side.

[0021] The hammer assembly is arranged at the top of the hammer assembly, the first hammer 1 is fixedly connected to the top of the first vertical swing arm 3 , and the second hammer 2 is fixedly connected to the top of the second vertical swing arm 4 .

[0022] A connecting rod assembly is arranged at the middle position of the bottom of the swing arm assembly, and the connecting rod assembly includes a bent rod 12 arranged at the middle position of the bottom on the opposite side of the first vertical swing arm 3 and the second vertical swing arm 4, and the upper part of the bent rod 12 is rotatably installed with a first connecting rod 7 and a second connecting rod 9 at equal intervals along the length direction. Furthermore, the equal-interval and staggered installation method can ensure the uniform distribution and balance of force during power transmission. The first vertical swing arm 3 and the second vertical swing arm 4 are respectively installed at the bottom, and the end of the first connecting rod 7 is fixed to the first core shaft 8, and the end of the second connecting rod 9 is fixed to the second core shaft 11.

[0023] The first vertical swing arm 3 and the second vertical swing arm 4 are connected through the support shaft 5 to form a stable swing arm structure, and the first hammer head 1 and the second hammer head 2 fixed on the top of the first vertical swing arm 3 and the second vertical swing arm 4 are in motion. During the forging process, due to the stability of the first vertical swing arm 3 and the second vertical swing arm 4, the movement trajectory of the first hammer head 1 and the second hammer head 2 can be accurately controlled, and the movement accuracy in the radial direction can be controlled within a very small range, which effectively improves the radial dimensional accuracy of the forging, so that the key dimensional parameters of the diameter and wall thickness of the forging can strictly meet the design requirements; at the same time, the stable movement trajectory also ensures the uniformity of the force of the first hammer head 1 and the second hammer head 2 when they contact the forging, avoiding the The surface quality problem of the forging caused by the shaking or deviation of the first hammer head 1 and the second hammer head 2 is solved, thereby significantly improving the surface quality of the forging and reducing the workload and cost of the subsequent processing steps. The curved rod 12, the first connecting rod 7 and the second connecting rod 9 in the connecting rod assembly are rotatably connected with the first core shaft 8 and the second core shaft 11 at the bottom of the first vertical swing arm 3 and the second vertical swing arm 4 through the first sliding bearing 13, so that the power loss in the transmission process is small and the direction and magnitude of the force are easier to control. Then, in the forging process, according to the requirements of the forging, the forging force applied by the hammer head to the forging can be accurately controlled by adjusting the structural parameters or power input of the connecting rod assembly, thereby achieving high-precision control of the shape and size of the forging.

[0024] Specifically, placement grooves are provided on opposite sides of the tops of the first vertical swing arm 3 and the second vertical swing arm 4, and the first hammer head 1 and the second hammer head 2 are both arranged inside the placement grooves. Furthermore, during the forging process, these placement grooves are precisely designed and processed according to the shape and size of the hammer heads, which not only ensures that the first hammer head 1 and the second hammer head 2 are stably placed therein, but also effectively limits unnecessary displacement of the hammer heads during the forging process, ensures the accuracy and consistency of the movement of the hammer head assembly, so that the first hammer head 1 and the second hammer head 2 can apply pressure to the forging, greatly shortening the forging time of a single forging. For example, for some long-axis forgings, forging can be performed on both sides of the long axis at the same time, so that the forging can reach the desired shape and size more quickly under one clamping, reducing the number of cycles of the forging process and improving production efficiency.

[0025] Specifically, forging holes are provided on opposite sides of the first hammer head 1 and the second hammer head 2 along the length direction. Furthermore, during the forging process, when the forging is between the two first hammer heads 1 and the second hammer heads 2, the forging holes can make the force distribution between the first hammer head 1 and the second hammer head 2 and the forging more uniform and reasonable, thereby avoiding quality problems such as cracks and uneven deformation of the forging due to local stress concentration. At the same time, through the set forging holes, the first hammer head 1 and the second hammer head 2 can be deformed according to the deformation requirements of the forging, thereby effectively avoiding excessive energy consumption caused by unreasonable movement of the hammer head assembly, greatly improving the energy utilization efficiency, and reducing the energy cost in the forging process.

[0026] Specifically, a thrust roller bearing 6 is installed at one end of the surface of the support shaft 5, and a third sliding bearing 15 is installed at the end of the support shaft 5. Further, the first vertical swing arm 3 and the second vertical swing arm 4 are installed on the frame through the support shaft 5, the sliding bearing 15 and the thrust roller bearing 6 installed in the middle. Furthermore, while ensuring the radial flexible rotation of the first vertical swing arm 3 and the second vertical swing arm, the friction resistance is further reduced, so that the movement of the swing arm is smoother and more stable, which lays a solid foundation for the precise movement of the subsequent hammer head assembly. In the process of the first vertical swing arm 3 and the second vertical swing arm 4 rotating around the support shaft 5, the thrust roller bearing 6 can effectively withstand the axial force generated by the swing arm due to the movement of the hammer head, ensure the stability of the support shaft 5 in the axial direction, and prevent the swing arm from axial movement. Thereby, the accuracy and reliability of the movement of the hammer head assembly are ensured; and the third sliding bearing 15 provides good radial support for the swing arm at the end of the support shaft 5. Specifically, a bearing material with self-lubricating properties is selected, which can reduce wear and failure caused by insufficient lubrication while ensuring low-friction rotation; through the coordinated cooperation of these two bearings, the first vertical swing arm 3 and the second vertical swing arm 4 can be stably installed on the frame, which greatly improves the stability of the device installation; during the operation of the equipment, even in the face of large forging forces and vibration shocks, the entire device can still maintain a stable structural state, reducing the forging error caused by the shaking or displacement of the device, further improving the quality and precision of the forgings, and at the same time extending the service life of the equipment and reducing the maintenance and maintenance costs of the equipment.

[0027] Specifically, the end of the crankshaft 12 is installed on the power output end of the reduction device through two self-aligning cylindrical roller bearings 10. Furthermore, the crankshaft 12 is connected to the power output end of the reduction device through the self-aligning cylindrical roller bearings 10, which ensures the high efficiency and stability of power transmission. Furthermore, due to the large vibration and impact force generated during the forging process, the concentricity change of the connection part between the crankshaft 12 and the power output end of the reduction device is easy to occur; and the application of the self-aligning cylindrical roller bearings 10 can effectively compensate for the concentricity deviation, ensuring that the power can be smoothly and efficiently transmitted from the reduction device to the crankshaft 12; during the power transmission process, the rollers of the self-aligning cylindrical roller bearings 10 have good contact with the inner and outer ring raceways, and the friction resistance is small, which can reduce the power loss and ensure the high efficiency and stability of power transmission; so that the crankshaft 12 can rotate stably after receiving the power, thereby driving the first connecting rod 7 and the second connecting rod 9 to move, providing reliable power guarantee for the normal operation of the entire forging host.

[0028] Specifically, the first core shaft 8 and the second core shaft 11 are both provided with a first sliding bearing 13, and the bent rod 12 is provided with a second sliding bearing 14. Further, the first sliding bearing 13 can effectively reduce the friction resistance between the first core shaft 8 and the second core shaft 11 and the first vertical swing arm 3 and the second vertical swing arm 4, ensuring the flexible rotation of the first core shaft 8 and the second core shaft 11 in the first vertical swing arm 3 and the second vertical swing arm 4, while bearing the radial force and a certain axial force transmitted from the connecting rod; the second sliding bearing 14 plays a similar role at the connection part between the bent rod 12 and the first connecting rod 7 and the second connecting rod 9, ensuring that the first connecting rod 7 and the second connecting rod 9 are in the bent rod 12. It can rotate smoothly to achieve efficient force transmission and precise conversion of motion; when the first sliding bearing 13 or the second sliding bearing 14 is worn or fails due to long-term operation, it can be easily replaced due to its standardized design and installation method; maintenance personnel can quickly complete the replacement of the first sliding bearing 13 or the second sliding bearing 14 according to standardized operating procedures and using conventional maintenance tools, which greatly reduces the equipment downtime maintenance time, effectively reduces maintenance costs, and improves the overall availability and production efficiency of the equipment.

[0029] Furthermore, the first sliding bearing 13 on the first spindle 8 and the second spindle 11 can not only reduce the friction coefficient between the first spindle 8 and the second spindle 11 and the first vertical swing arm 3 and the second vertical swing arm 4, and reduce energy loss, but also can withstand various forces transmitted from the first connecting rod 7 and the second connecting rod 9, including radial force, axial force and impact load caused by the movement of the hammer head; in the long-term forging process, the first sliding bearing 13 ensures the stable rotation of the first spindle 8 and the second spindle 11 in the swing arm with its good wear resistance and reliability, and provides a solid foundation for the normal operation of the swing arm assembly; and the second sliding bearing 14 realizes a flexible rotation connection at the connection part of the curved rod 12 and the first connecting rod 7 and the second connecting rod 9, ensuring the smooth transmission of force and the precise conversion of movement; when the first sliding bearing 13 or the second sliding bearing 14 is worn or fails due to long-term high-intensity operation, since they all adopt standardized design and installation methods, maintenance personnel can quickly obtain the corresponding replacement bearings and replace them according to standardized operating procedures.

[0030] Specifically, the opposite ends of the first connecting rod 7 and the second connecting rod 9 are rotatably connected to the bent rod 12 through the second sliding bearing 14, and the opposite ends of the first connecting rod 7 and the second connecting rod 9 are rotatably connected to the first core shaft 8 and the second core shaft 11 through the first sliding bearing 13. Furthermore, the main motor drives the bent rod 12 to rotate through the safety torque limiter, gear transmission, flywheel, and coupling. During the rotation of the bent rod 12, the bent rod 12 pushes the lower part of the first vertical swing arm 3 and the second vertical swing arm 4 to open and close through the first connecting rod 7 and the second connecting rod 9, the first core shaft 8 and the second core shaft 11, thereby realizing the opening and closing of the upper hammer head assembly of the first vertical swing arm 3 and the second vertical swing arm 4, and completing the forging of the workpiece between the two hammer heads.

[0031] Specifically, the crank angles at both ends of the crank rod 12 are consistent and symmetrically distributed with the angle at the middle position being 180°. Furthermore, the crank rod 12 can evenly drive the first connecting rod 7 and the second connecting rod 9 to move during the rotation process, thereby enabling the first hammer head 1 and the second hammer head 2 to achieve stable and efficient reciprocating motion, reducing motion jams or energy losses caused by unreasonable structures, and further improving the overall production efficiency of the equipment. Furthermore, when the crank rod 12 rotates, the crank angles at both ends thereof can simultaneously and synchronously drive the first connecting rod 7 and the second connecting rod 9 to move, so that the motion laws of the first connecting rod 7 and the second connecting rod 9 remain highly consistent, and then, the first hammer head 1 and the second hammer head 2 can also achieve stable and efficient reciprocating motion under the drive of the swing arm; compared with some crank rod designs with inconsistent crank angles or asymmetrical distribution, the crank rod 12 of the present device can effectively reduce motion jams or energy losses caused by unreasonable structures.

[0032] How it works When in use, the first vertical swing arm 3 and the second vertical swing arm 4 are installed on the frame through the support shaft 5, the sliding bearing 15 and the thrust roller bearing 6 installed in the middle, and the motor drives the crankshaft 12 to rotate through the safety torque limiter, gear transmission, flywheel, coupling and two self-aligning cylindrical roller bearings 10, so that the crankshaft 12 can evenly drive the first connecting rod 7 and the second connecting rod 9 to move during the rotation process, and then the first connecting rod 7 and the second connecting rod 9 push the lower part of the first vertical swing arm 3 and the second vertical swing arm 4 to open and close through the first core shaft 8 and the second core shaft 11, thereby realizing the opening and closing of the first hammer head 1 and the second hammer head 2 on the upper part of the first vertical swing arm 3 and the second vertical swing arm 4, and completing the forging of the workpiece between the two hammer heads.

[0033] This specific embodiment is merely an explanation of the invention and is not a limitation of the invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as they are within the scope of protection of the invention, they are protected by patent law.

Claims

1. A double-hammer lever-type forging machine device, comprising a forging main machine and a reduction device, characterized in that: The forging main machine comprises a frame, a hammer assembly, a swing arm assembly and a connecting rod assembly, wherein the swing arm assembly comprises a first vertical swing arm (3) and a second vertical swing arm (4), and a support shaft (5) is provided at a middle position of opposite sides of the first vertical swing arm (3) and the second vertical swing arm (4); The hammer assembly is arranged at the top of the hammer assembly, the first hammer (1) is fixedly connected to the top of the first vertical swing arm (3), and the second hammer (2) is fixedly connected to the top of the second vertical swing arm (4); A connecting rod assembly is arranged at the middle position of the bottom of the swing arm assembly, and the connecting rod assembly comprises a bent rod (12) arranged at the middle position of the bottom of the opposite side of the first vertical swing arm (3) and the second vertical swing arm (4), and a first connecting rod (7) and a second connecting rod (9) are rotatably mounted on the upper part of the bent rod (12) at equal intervals along the length direction, and a first core shaft (8) and a second core shaft (11) are respectively mounted on the inner bottom of the first vertical swing arm (3) and the second vertical swing arm (4), and the end of the first connecting rod (7) is fixedly connected to the first core shaft (8), and the end of the second connecting rod (9) is fixedly connected to the second core shaft (11).

2. The double-hammer lever forging machine device according to claim 1, characterized in that: A placement groove is provided on opposite sides of the top of the first vertical swing arm (3) and the second vertical swing arm (4), and the first hammer head (1) and the second hammer head (2) are both arranged inside the placement groove.

3. The double-hammer lever-type forging machine device according to claim 2, characterized in that: Forging holes are provided on opposite sides of the first hammer head (1) and the second hammer head (2) along the length direction.

4. The double-hammer lever forging machine device according to claim 3, characterized in that: A thrust roller bearing (6) is installed on one end of the surface of the support shaft (5), and a third sliding bearing (15) is installed on the end of the support shaft (5).

5. The double hammer lever forging machine device according to claim 1, characterized in that: The end of the crankshaft (12) is mounted on the power output end of the reduction device via two self-aligning cylindrical roller bearings (10).

6. The double-hammer lever forging machine device according to claim 1, characterized in that: A first sliding bearing (13) is provided on both the first core shaft (8) and the second core shaft (11), and a second sliding bearing (14) is provided on the bent rod (12).

7. The double-hammer lever forging machine device according to claim 6, characterized in that: The opposite ends of the first connecting rod (7) and the second connecting rod (9) are rotatably connected to the curved rod (12) via the second sliding bearing (14).

8. The double-hammer lever forging machine device according to claim 6, characterized in that: The opposite ends of the first connecting rod (7) and the second connecting rod (9) are rotatably connected to the first core shaft (8) and the second core shaft (11) respectively via the first sliding bearing (13).

9. The double hammer lever forging machine device according to claim 1, characterized in that: The bending angles at both ends of the bending rod (12) are consistent and symmetrically distributed with the angle at the middle position being 180°.

Images