Forging press pressure adjusting mechanism

Abstract

The utility model belongs to the technical field of pressure regulation of forging presses, particularly relates to a pressure regulation mechanism of a forging press, and aims to solve the problems that the conventional pressure regulation mostly depends on manual operation and cannot be regulated in real time according to pressure, and meanwhile, a rigid lifting mechanism is lack of a buffer component and is easy to damage a die during overpressure. Comprising a supporting seat, a machine frame, a sliding block, a base and a mounting seat, four pressure sensors are embedded in the top of the mounting seat and abut against a lower die, two adjusting blocks are arranged in a groove in the top of the supporting seat in a sliding mode, the tops of the adjusting blocks are inclined planes, and matched inclined grooves are formed in the bottom of the base. A positioning sliding rod and a disc spring are arranged at the bottom of the installation base, the disc spring is compressed to absorb energy when forging impact force is transmitted, and a flywheel on a threaded rod is matched with a cylinder brake pad to achieve emergency braking.

Description

Technical Field

[0001] This utility model relates to the field of pressure regulation technology for forging presses, and in particular to a pressure regulation mechanism for forging presses. Background Technology

[0002] Forging presses are widely used in metal forming and processing. They apply pressure to the workpiece through a slider and a mold on the base to complete the forging process. The pressure regulating mechanism is the core part of the forging press, and its performance is directly related to the accuracy and pass rate of the forged workpiece. Appropriate pressure regulation can ensure the forming quality of the workpiece.

[0003] However, the pressure regulation of existing forging presses has obvious defects. Most of the pressure regulation relies on manual operation, which not only consumes manpower but also reduces the regulation accuracy. It is impossible to adjust the pressure in real time during forging operations, which can easily lead to overpressure or underpressure. At the same time, the rigid lifting mechanism lacks a buffer component, which can easily damage the mold when overpressure occurs. Therefore, we propose a pressure regulation mechanism for forging presses to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing forging presses, such as the reliance on manual operation for pressure adjustment, which is labor-intensive and cannot be adjusted in real time according to the pressure. In addition, the rigid lifting mechanism lacks a buffer component, which can easily damage the mold when the pressure is too high. Therefore, this invention proposes a pressure adjustment mechanism for forging presses.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pressure regulating mechanism for a forging press includes a support base, a frame fixedly mounted on the top of the support base, a slider and a base slidably mounted inside the frame, the slider being located above the base, and a drive assembly for driving the slider to move up and down is provided on the top of the frame.

[0007] The base is provided with a mounting seat at the top, and the lower mold and the upper mold are fixed at the top of the mounting seat and the bottom of the slider, respectively.

[0008] Four pressure sensors are embedded in the top of the mounting base, and the pressure sensors abut against the lower mold.

[0009] The support base is provided with a pressure adjustment mechanism at the top, including two adjustment blocks that slide in the groove. The top of the adjustment block is an inclined surface, and a matching inclined groove is opened at the bottom of the base. The adjustment block and the inclined groove form a sliding pair.

[0010] The bottom of the mounting base is provided with a buffer assembly, including four positioning slide rods fixed to the mounting base and a sleeved disc spring;

[0011] The inner walls on both sides of the frame are symmetrically provided with limiting rods, and the slider, base and mounting seat are all provided with guide grooves that cooperate with the limiting rods.

[0012] In one possible design, the pressure regulating mechanism further includes a bidirectional lead screw rotatably disposed in the groove, the bidirectional lead screw threaded through two adjusting blocks, the two adjusting blocks being respectively disposed on the positive and negative thread sections of the bidirectional lead screw; motor I is fixed on one side of the support base, and the output end of motor I is connected to the bidirectional lead screw.

[0013] In one possible design, two guide rails are fixed to the inner wall of the bottom of the groove, and a sliding groove matching the guide rails is opened at the bottom of the adjusting block, with the sliding groove slidably connected to the guide rails.

[0014] In one possible design, both sides of the two adjustment blocks are fixed with limiting protrusions, and limiting grooves that cooperate with the limiting protrusions are formed on the inner walls of both sides of the inclined groove.

[0015] In one possible design, the buffer assembly further includes two limiting slide rods fixed to the bottom of the mounting base. The limiting slide rods slide through the base and are threadedly connected to a limiting nut, which abuts against the inner wall of the bottom of the base. The positioning slide rod extends slidably into the clearance hole at the top of the base.

[0016] In one possible design, the drive assembly includes a connecting column slidably mounted on the frame, with a slider fixedly connected to the bottom of the connecting column; a threaded rod rotatably mounted on the inner wall of the bottom of the frame, with the bottom end of the threaded rod extending into the interior of the connecting column and threadedly matching the inner wall of the connecting column; a motor II fixed to the top of the frame, with the top end of the threaded rod connected to the output end of the motor II; a flywheel fixedly mounted on the threaded rod; two cylinders symmetrically mounted inside the frame; brake pads fixed to the output ends of the cylinders; and the brake pads abutting against the outer wall of the flywheel.

[0017] In this application, during the forging operation, motor II starts and its output end drives the threaded rod to rotate. The threaded rod engages with the thread on the inner wall of the connecting column, causing the connecting column to drive the slider to move vertically downward along the guide structure on the inner wall of the frame. The upper die moves synchronously with the slider until it closes with the lower die, and the workpiece placed on the lower die is forged, thus realizing the basic forging function.

[0018] During this process, the four pressure sensors on the top of the mounting base are in continuous contact with the bottom surface of the lower mold, converting the sensed pressure signals into electrical signals and transmitting them to the control system to provide real-time data for pressure regulation. When the pressure exceeds or falls below the set value, the control system triggers motor I to run, and its output end drives the bidirectional lead screw to rotate in the groove. The two adjusting blocks are located on the positive and negative thread sections of the bidirectional lead screw respectively, and slide in opposite directions along the guide rail under the action of thread thrust. The cooperation between the guide rail and the slide groove limits the offset of the adjusting blocks, thereby realizing the dynamic adjustment function.

[0019] The inclined surface at the top of the adjusting block and the inclined groove at the bottom of the base fit tightly together to form a sliding pair. When the adjusting block moves, the inclined surface generates a vertical component force to push the base up and down, thereby changing the closing height of the upper and lower molds. By using the principle that the pressure increases when the closing height decreases and decreases when the closing height increases, the forging pressure is adjusted to the target range, realizing the pressure closed-loop control function. At the same time, the limiting protrusions on both sides of the adjusting block slide synchronously in the limiting groove of the inclined groove to prevent the adjusting block from separating from the base and causing lateral misalignment.

[0020] The impact force generated by forging is transmitted to the positioning slide rod through the mounting base. The slide rod moves downward along the clearance hole of the base. The disc spring sleeved on the slide rod is compressed and undergoes elastic deformation. It absorbs most of the impact energy through its own contraction and rebound, reducing the impact of vibration on equipment components such as the frame, lead screw and mold, and realizing the buffer protection function. At the same time, the two limiting slide rods at the bottom of the mounting base slide synchronously along the through hole of the base. The limiting nuts at the bottom of the limiting slide rods prevent the mounting base from falling off.

[0021] In case of an emergency requiring the forging process to be stopped, the control system commands the cylinder to start. Its output end pushes the brake pads closer to the flywheel and into close contact. The friction between the brake pads and the outer wall of the flywheel hinders the rotation of the flywheel, which is then transmitted through the threaded rod to stop the connecting column and the slider from descending. This prevents the slider from going out of control and causing damage to the workpiece or equipment, thus achieving a safe braking function.

[0022] Beneficial effects: In this utility model, the pressure regulating mechanism of a forging press pushes the regulating block to move horizontally through a bidirectional lead screw. The inclined surface and the inclined groove cooperate to transform the base to lift vertically. The guide rail controls the movement trajectory, and the limit protrusion prevents deviation, ensuring smooth adjustment. The pressure sensor collects contact force data, and the control system adjusts the motor in real time based on this data, dynamically corrects the closing height, and improves the pressure control accuracy and response efficiency.

[0023] In this utility model, the pressure regulating mechanism of the forging press absorbs energy through the elastic deformation of the multi-layer disc springs when the forging impact is transmitted to the base, thereby reducing damage to the frame and transmission components. The limiting slide rod connects the base and the mounting seat, and the end nut locks the displacement range to prevent structural separation and maintain the stability of the mold position.

[0024] In this utility model, the pressure regulating mechanism of the forging press uses a cylinder to drive the brake pads to contact the flywheel. In case of emergency braking, the slider brake is quickly realized to avoid workpiece damage or equipment failure caused by abnormal pressure, thereby enhancing the safety and reliability of the mechanism operation.

[0025] In this invention, contact force data is collected in real time by a pressure sensor. The horizontal movement of the adjusting block driven by the bidirectional screw is precisely controlled by the cooperation of the inclined plane and the inclined groove, thereby achieving pressure regulation. The energy of the forging impact is absorbed by the elastic deformation of the disc spring, reducing damage to the machine parts. The limit slide rod and the end nut constrain the displacement of the base and maintain the stability of the mold position. In emergency situations, the cylinder drives the brake pad to contact the flywheel, and the slider is quickly stopped by friction braking. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural schematic diagram of a pressure regulating mechanism for a forging press proposed in this utility model;

[0027] Figure 2 This is a partial exploded three-dimensional structural diagram of a pressure regulating mechanism for a forging press proposed in this utility model;

[0028] Figure 3 This is a partial exploded three-dimensional structural diagram of a pressure regulating mechanism for a forging press proposed in this utility model;

[0029] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the frame of a forging press pressure regulating mechanism proposed in this utility model.

[0030] In the diagram: 1. Support base; 2. Frame; 3. Slider; 4. Base; 5. Mounting base; 6. Limiting rod; 7. Pressure sensor; 8. Adjusting block; 9. Guide rail; 10. Two-way lead screw; 11. Motor I; 12. Limiting protrusion; 13. Positioning slide rod; 14. Disc spring; 15. Limiting slide rod; 16. Connecting column; 17. Threaded rod; 18. Motor II; 19. Flywheel; 20. Cylinder. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] In one embodiment: Refer to Figure 1-4 A pressure regulating mechanism includes a support base 1, a frame 2 fixedly mounted on the top of the support base 1, a slider 3 and a base 4 slidably mounted inside the frame 2, with the slider 3 located above the base 4, and two limiting rods 6 symmetrically arranged on the inner walls of both sides of the frame 2. Guide grooves are provided on the slider 3, the base 4 and the mounting base 5 to cooperate with the limiting rods 6 to form a sliding pair. The limiting rods 6 cooperate with the guide grooves to guide the movement of the slider 3, the base 4 and the mounting base 5, ensuring smooth movement and preventing deviation.

[0033] The top of the frame 2 is provided with a drive assembly for driving the slider 3 to move up and down. The drive assembly includes a connecting post 16 that is slidably mounted on the frame 2. The bottom of the connecting post 16 is fixedly connected to the top of the slider 3. A threaded rod 17 is rotatably mounted on the inner wall of the bottom of the frame 2. The bottom end of the threaded rod 17 extends into the interior of the connecting post 16 and matches the thread on the inner wall of the connecting post 16. A motor II 18 is fixedly mounted on the top of the frame 2. The top end of the threaded rod 17 extends to the top of the frame 2 and is fixedly connected to the output end of the motor II 18.

[0034] A flywheel 19 is fixedly mounted on the threaded rod 17 inside the frame 2. Two cylinders 20 are symmetrically arranged inside the frame 2. Brake pads are fixedly connected to the output ends of the two cylinders 20. When braking in an emergency, the two brake pads abut against the outer wall of the flywheel 19.

[0035] When motor II18 starts, its output end drives the threaded rod 17 to rotate. The threaded rod 17 engages with the thread on the inner wall of the connecting column 16, causing the connecting column 16 to drive the slider 3 vertically downward. The upper mold moves synchronously with the slider 3, realizing the basic forging function. In case of emergency requiring stopping forging, the control system commands cylinder 20 to start. Its output end pushes the brake pads close to the flywheel 19 and makes tight contact. The friction between the brake pads and the outer wall of the flywheel 19 hinders the rotation of the flywheel 19, which is then transmitted through the threaded rod 17 to stop the connecting column 16 and the slider 3 from descending, preventing the slider 3 from going out of control and causing damage to the workpiece or equipment.

[0036] A mounting base 5 is provided on the top of the base 4. The lower mold and the upper mold are fixedly mounted on the top of the mounting base 5 and the bottom of the slider 3, respectively. Four pressure sensors 7 are fixedly embedded in the top of the mounting base 5, and all four pressure sensors 7 are in contact with the lower mold. During the forging process, the four pressure sensors 7 on the top of the mounting base 5 are in continuous contact with the bottom surface of the lower mold, converting the sensed pressure signal into an electrical signal and transmitting it to the control system to provide real-time data for pressure regulation.

[0037] The top of the support base 1 is provided with a pressure adjustment mechanism for adjusting the height of the base 4 and the mounting base 5. The pressure adjustment mechanism includes two adjusting blocks 8 that are slidably set in the grooves opened on the top of the support base 1 and a bidirectional lead screw 10 that is rotatably set in the grooves. The tops of the two adjusting blocks 8 are both set as inclined surfaces. The bottom of the base 4 is provided with inclined grooves that match the two adjusting blocks 8. The two adjusting blocks 8 and the corresponding inclined grooves form sliding pairs. The bidirectional lead screw 10 is threaded through the two adjusting blocks 8, and the two adjusting blocks 8 are respectively located on the positive and negative thread sections of the bidirectional lead screw 10. A motor I11 is fixedly set on one side of the support base 1. The output end of the motor I11 is fixedly connected to the bidirectional lead screw 10.

[0038] Two guide rails 9 are symmetrically fixedly installed on the bottom inner wall of the groove. The bottom of each of the two adjusting blocks 8 is provided with a sliding groove that matches the guide rail 9. The two sliding grooves are slidably connected to the corresponding guide rail 9. Limiting protrusions 12 are fixedly connected to both sides of each of the two adjusting blocks 8. Limiting grooves that form a sliding pair with the corresponding limiting protrusions 12 are provided on the inner walls of both sides of the two inclined grooves.

[0039] When the pressure exceeds or falls below the set value, the control system triggers motor I11 to operate. Its output end drives the bidirectional lead screw 10 to rotate within the groove. The two adjusting blocks 8, located on the positive and negative thread sections of the bidirectional lead screw 10 respectively, slide towards or away from each other along the guide rail 9 under the force of the thread. The fit between the guide rail 9 and the slide groove restricts the offset of the adjusting blocks 8. The inclined surface at the top of the adjusting block 8 and the inclined groove at the bottom of the base 4 form a sliding pair. When the adjusting block 8 moves, the inclined surface generates a vertical component force that pushes the base 4 up and down, thereby changing the closing height of the upper and lower dies and adjusting the forging pressure to the target range. Simultaneously, the limiting protrusions 12 on both sides of the adjusting block 8 slide synchronously within the limiting groove of the inclined groove, preventing the adjusting block 8 from separating from the base 4 and causing lateral misalignment.

[0040] This application can be used in the field of pressure regulation technology for forging presses, and can also be used in other fields applicable to this application.

[0041] In another embodiment: Reference Figure 1-3 An improvement based on Embodiment 1: A forging press pressure regulating mechanism, applied in the field of forging press pressure regulating technology, includes a buffer assembly at the bottom of the mounting base 5. The buffer assembly comprises four positioning slide rods 13 fixedly mounted at the bottom of the mounting base 5, disc springs 14 sleeved on the positioning slide rods 13, and two limiting slide rods 15 symmetrically fixedly mounted at the bottom of the mounting base 5. Both limiting slide rods 15 slide through the base 4 and are threadedly connected to limiting nuts. Both limiting nuts abut against the inner wall of the bottom of the base 4. The four positioning slide rods 13 slide to the top of the base 4, where clearance holes are provided. The impact force generated by forging is transmitted to the positioning slide rods 13 through the mounting base 5. The slide rods move downwards along the clearance holes of the base 4. The disc springs 14 sleeved on the slide rods are compressed and undergo elastic deformation, absorbing most of the impact energy through their own contraction and rebound, reducing the impact of vibration on the frame 2, lead screw, and other equipment components and molds. At the same time, the two limiting slide rods 15 at the bottom of the mounting base 5 slide synchronously along the through hole of the base 4, and the limiting nut at the bottom of the limiting slide rod 15 prevents the mounting base 5 from falling off.

[0042] However, as is well known to those skilled in the art, the working principles and wiring methods of pressure sensor 7, motor I 11 and motor II 18 are all conventional methods or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0043] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A forging press pressure regulating mechanism comprising a support base (1), characterized in that, The support base (1) is fixedly provided with a frame (2), and a slider (3) and a base (4) are slidably provided inside the frame (2). The slider (3) is located above the base (4), and the top of the frame (2) is provided with a drive assembly for driving the slider (3) to move up and down. The base (4) is provided with a mounting seat (5) on the top, and the top of the mounting seat (5) and the bottom of the slider (3) are respectively fixed to the lower mold and the upper mold; Four pressure sensors (7) are embedded in the top of the mounting base (5), and the pressure sensors (7) abut against the lower mold; The support base (1) is provided with a pressure adjustment mechanism at the top, including two adjustment blocks (8) that slide in the groove. The top of the adjustment block (8) is an inclined surface, and the bottom of the base (4) is provided with a matching inclined groove. The adjustment block (8) and the inclined groove form a sliding pair. The bottom of the mounting base (5) is provided with a buffer assembly, including four positioning slide rods (13) fixed to the mounting base (5) and a sleeved disc spring (14); The frame (2) has symmetrical limit rods (6) on both sides of the inner wall. The slider (3), base (4) and mounting base (5) are all provided with guide grooves that cooperate with the limit rods (6).

2. A pressure regulating mechanism for a forging press according to claim 1, wherein The pressure regulating mechanism also includes a bidirectional lead screw (10) rotatably disposed in the groove. The bidirectional lead screw (10) is threaded through two adjusting blocks (8), and the two adjusting blocks (8) are respectively disposed on the positive and negative thread sections of the bidirectional lead screw (10). The motor I (11) is fixed on one side of the support base (1), and the output end of the motor I (11) is connected to the bidirectional lead screw (10).

3. A pressure regulating mechanism for a forging press according to claim 2, wherein Two guide rails (9) are fixed to the inner wall of the bottom of the groove. The bottom of the adjusting block (8) has a sliding groove that matches the guide rails (9). The sliding groove is slidably connected to the guide rails (9).

4. A pressure regulating mechanism for a forging press according to claim 1, wherein Both of the two adjustment blocks (8) have fixed limiting protrusions (12) on both sides, and limiting grooves that cooperate with the limiting protrusions (12) are opened on the inner walls of both sides of the inclined groove.

5. A pressure regulating mechanism for a forging press according to claim 1, wherein The buffer assembly also includes two limiting slide rods (15) fixed to the bottom of the mounting base (5). The limiting slide rods (15) slide through the base (4) and are threadedly connected to the limiting nut. The limiting nut abuts against the inner wall of the bottom of the base (4). The positioning slide rod (13) slides to the clearance hole at the top of the base (4).

6. A pressure regulating mechanism for a forging press according to claim 1, wherein The drive assembly includes a connecting column (16) slidably mounted on the frame (2), with a slider (3) fixedly connected to the bottom of the connecting column (16); a threaded rod (17) is rotatably mounted on the inner wall of the bottom of the frame (2), with the bottom end of the threaded rod (17) extending into the interior of the connecting column (16) and threadedly matched with the inner wall of the connecting column (16); a motor II (18) is fixedly mounted on the top of the frame (2), with the top end of the threaded rod (17) connected to the output end of the motor II (18); a flywheel (19) is fixedly mounted on the threaded rod (17), and two cylinders (20) are symmetrically mounted inside the frame (2), with a brake pad fixed to the output end of the cylinder (20), and the brake pad abutting against the outer wall of the flywheel (19).

Images