Friction press with buffer device

Abstract

The utility model relates to a friction press with a buffer device, which belongs to the technical field of friction presses and comprises a worktable, mounting grooves are arranged at two ends in the worktable, buffer blocks are slidably connected in the mounting grooves, and two fixing rods are fixedly connected in the mounting grooves. The damping device has the advantages that when the stamping plate stamps downwards, large impact force can be formed on the supporting base, the supporting base moves downwards when pressed, the connecting rod is used for pushing the buffer block to slide in the corresponding installation groove, the damper can be triggered, meanwhile, the buffer spring can also be pressed to generate large deformation, and therefore the damping device is not prone to being damaged. The buffer structure in the friction press has a certain buffer effect, the damper is used in most buffer processing machines, the buffer structure has the advantages of being good in buffer effect, long in service life, stable and the like, and therefore the stability of the buffer structure in the friction press can be improved.

Description

Technical Field

[0001] This utility model relates to the field of friction press technology, and in particular to a friction press with a buffer device. Background Technology

[0002] A press is a sophisticated and versatile press with a wide range of applications and high production efficiency. Presses can be widely used in processes such as cutting, punching, blanking, bending, riveting, and forming. They process metal parts by applying strong pressure to metal blanks to cause plastic deformation and fracture. After the material is stamped, the remaining impact force of the press needs to be mitigated by a buffer mechanism.

[0003] A search revealed a Chinese patent disclosure for a press buffer mechanism (authorization announcement number CN219706191U), comprising a base, an operating table fixedly mounted on the top of the base, a machine head mounted on the top of the operating table, a protective cover fixedly mounted on the top of the operating table, a placement plate on the operating table, two symmetrically arranged buffer racks fixedly mounted on the bottom of the placement plate, the buffer racks being slidably connected to the operating table, a buffer mechanism on the operating table, a clamping mechanism on the top of the placement plate, a handle rotatably connected to one side of the placement plate, the handle being drively connected to the clamping mechanism, and two buffer chambers on the operating table. Piston plates are slidably connected to the inner walls of the buffer chambers. This patented technology facilitates material clamping and positioning, provides sufficient buffering, and allows for adjustment of the buffering force for different materials, making it convenient for users.

[0004] However, the above-mentioned device still has some drawbacks in actual use. The most obvious one is that the piston plate and the buffer chamber are slidably connected in the press, and the transmission rack and buffer rack mesh with the gears so that the force-bearing plate can be buffered by the buffer chamber. The meshing method of the gears and racks makes the stability requirements of the press high. If the punch head is punching continuously, the strong shaking may cause the gears or racks to deviate and fail to mesh, thus failing to ensure the stability of the buffer structure in the press. Utility Model Content

[0005] Given the existing technology, the aforementioned press has a sliding connection between a piston plate and a buffer chamber, and the meshing of the transmission rack and buffer rack with the gears allows the force-bearing plate to be buffered by the buffer chamber. The meshing method of the gears and racks requires high stability within the press. If the punch head continuously punches, the strong shaking may cause the gears or racks to deviate and fail to mesh, thus failing to ensure the stability of the buffer structure within the press. The main purpose of this utility model is to provide a friction press with a buffer device.

[0006] The technical solution of this utility model is as follows: A friction press with a buffer device includes a worktable. Both ends of the worktable have mounting grooves. Buffer blocks are slidably connected inside each mounting groove. Two fixed rods are fixedly connected inside each mounting groove. A damper is fixedly installed on the inner wall of each mounting groove between the two fixed rods. The other end of each damper is fixedly connected to a corresponding buffer block. A buffer spring is sleeved on the outer side of each fixed rod, located on one side of the buffer block. Connecting rods are rotatably connected to both sides of the buffer block. A support seat is provided at the top of the worktable between the two mounting grooves. The support seat is rotatably connected to the end of the connecting rod away from the buffer block. A reinforcing mechanism is provided inside the worktable. A clamping mechanism is provided inside the support seat. A replacement mechanism is provided at the top of the clamping mechanism.

[0007] By adopting the above technical solution, when the stamping plate presses downward, it will generate a large impact force on the support seat. The support seat will move downward under pressure, and then the connecting rod will push the buffer block to slide in the corresponding mounting groove, which will trigger the damper. The damper uses damping characteristics to reduce mechanical vibration and consume kinetic energy, so that the support seat has a continuous and stable buffering effect. At the same time, the buffer spring will also be compressed and generate a large deformation, which has a certain buffering effect.

[0008] In a preferred embodiment, the reinforcing mechanism includes a buffer groove formed inside the workbench and located between two mounting slots. A buffer column is provided inside the buffer groove. A limiting plate is slidably connected inside the buffer groove. A rotating column is fixedly connected to the top of the limiting plate. The top of the rotating column extends to the outside of the workbench and is fixedly connected to a support base.

[0009] By adopting the above technical solution, when the rotating column is pressed downward, the buffer column in the buffer groove deforms immediately, which can absorb more downward pressure potential energy. When the rotating column is reset, the buffer column will also recover, so as to perform a secondary buffering operation. Based on the damper buffering, the buffering effect on the downward pressure of the support seat is further improved, making the buffering effect better.

[0010] In a preferred embodiment, the clamping mechanism includes two grooves formed inside the support base. A bidirectional lead screw is rotatably connected inside one of the grooves, and a support rod is fixedly connected inside the other groove. Clamping seats are threaded to both ends of the outer side of the bidirectional lead screw, and the clamping seats are slidably connected to the support rod.

[0011] By adopting the above technical solution, the rotation of the bidirectional lead screw can drive the two clamping seats to move in opposite directions, thereby enabling the clamping of workpieces of different sizes.

[0012] In a preferred embodiment, the replacement mechanism includes two screws inserted inside the clamping seat. One end of each screw is fixedly connected to a corresponding replacement plate. The outer side of each screw is threaded, and a locking nut is threadedly connected to the threaded portion of the screw. The locking nut abuts against the outer side of the clamping seat.

[0013] By adopting the above technical solution, the fixing between the screw and the clamping seat can be released by loosening the locking nut, which makes it easier to replace the replacement plate with the screw according to the shape of the workpiece.

[0014] In a preferred embodiment, pressure relief pipes are embedded inside the workbench and on both sides of the buffer groove. One end of each pressure relief pipe extends to the outside of the workbench, and the other end extends into the inside of the buffer groove.

[0015] By adopting the above technical solution, the air in the buffer tank will be quickly discharged into the workbench through the pressure relief pipe, making the air pressure in the buffer tank more stable.

[0016] In a preferred embodiment, an L-shaped plate is fixedly connected to the top of the workbench, two stamping cylinders are fixedly installed on the top of the L-shaped plate, a stamping plate is provided inside the L-shaped plate, and the piston rods of the stamping cylinders are fixedly connected to the stamping plate.

[0017] By adopting the above technical solution, the piston rod of the stamping cylinder can be extended and retracted to push the stamping plate downward for stamping operation.

[0018] In a preferred embodiment, a servo motor is fixedly installed on the outer side of the support base, the output shaft of the servo motor extends into the interior of the slide groove and is fixedly connected to a bidirectional lead screw, and a closed door is hinged inside the worktable.

[0019] By adopting the above technical solution, the rotation of the output shaft of the servo motor can drive the rotation of the bidirectional lead screw, thereby realizing the transmission of power.

[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0021] 1. In this utility model, when the stamping plate presses downward, it will generate a large impact force on the support seat. The support seat will move downward under pressure, and then the connecting rod will push the buffer block to slide in the corresponding mounting groove, thereby triggering the damper. The damper uses damping characteristics to reduce mechanical vibration and consume kinetic energy, so that the support seat has a continuous and stable buffering effect. At the same time, the buffer spring will also be compressed and generate a large deformation, which has a certain buffering effect. The damper has been used in most buffer processing machines. It has the characteristics of good buffering effect, long service life and relatively stable performance, thereby improving the stability of the buffer structure in the friction press.

[0022] 2. In this utility model, when the rotating column is pressed downward, the buffer column in the buffer groove deforms immediately. The buffer column is made of polyurethane foam, which has the characteristics of low density, good flexibility, high recovery rate and excellent impact resistance. After the buffer column deforms, it can absorb more downward pressure potential energy. When the rotating column returns to its original position, the buffer column will also recover, so as to perform a secondary buffering operation. Based on the damper buffering, the buffering effect on the downward pressure of the support seat is further improved, making the buffering effect better.

[0023] 3. In this utility model, by loosening the locking nut, the fixation between the screw and the clamping seat can be released, thereby facilitating the replacement plate with the screw according to the shape of the workpiece, so as to adapt to the processing of different irregular parts and improve adaptability. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present utility model;

[0025] Figure 2 This is a cross-sectional view of the present invention;

[0026] Figure 3 This is a schematic diagram of the buffer block and connecting rod structure of this utility model;

[0027] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle.

[0028] Legend: 1. Workbench; 2. Mounting slot; 3. Fixing rod; 4. Buffer block; 5. Connecting rod; 6. Support base; 7. Servo motor; 8. Clamping seat; 9. Replacement plate; 10. Slide groove; 11. Two-way lead screw; 12. Rotary column; 13. Limiting plate; 14. Buffer column; 15. Pressure relief pipe; 16. Buffer groove; 17. Screw; 18. Locking nut; 19. Buffer spring; 20. Damper; 21. Support rod. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] Reference Figure 1-4 A friction press with a buffer device includes a worktable 1. Both ends of the worktable 1 have mounting grooves 2. Buffer blocks 4 are slidably connected inside each mounting groove 2. Two fixing rods 3 are fixedly connected inside each mounting groove 2. A damper 20 is fixedly installed on the inner wall of the mounting groove 2 between the two fixing rods 3. The other end of each damper 20 is fixedly connected to a corresponding buffer block 4. A buffer spring 19 is sleeved on the outer side of each fixing rod 3, located on one side of each buffer block 4. Connecting rods 5 are rotatably connected to both sides of each buffer block 4. A support seat 6 is provided at the top of the worktable 1 between the two mounting grooves 2. The support seat 6 is rotatably connected to the end of the connecting rod 5 away from the buffer block 4. A reinforcing mechanism is provided inside the worktable 1. A clamping mechanism is provided, with a replacement mechanism at the top of the clamping mechanism. When the stamping plate presses downward, it will generate a large impact force on the support seat 6. The support seat 6 will move downward under pressure, which will then push the buffer block 4 to slide in the corresponding mounting groove 2 via the connecting rod 5. This will trigger the damper 20. The damper 20 uses damping characteristics to reduce mechanical vibration and consume kinetic energy, so that the support seat 6 has a continuous and stable buffering effect. At the same time, the buffer spring 19 will also be compressed and undergo a large deformation, which has a certain buffering effect. The damper 20 has been used in most buffer processing machines. It has the characteristics of good buffering effect, long service life and relatively stable performance, thereby improving the stability of the buffer structure in the friction press.

[0031] Reference Figure 2 The reinforcing mechanism includes a buffer groove 16 located inside the workbench 1 and between two mounting slots 2. A buffer column 14 is provided inside the buffer groove 16. A limit plate 13 is slidably connected inside the buffer groove 16. A rotating column 12 is fixedly connected to the top of the limit plate 13. The top of the rotating column 12 extends to the outside of the workbench 1 and is fixedly connected to the support base 6. When the rotating column 12 is pressed downward, the buffer column 14 in the buffer groove 16 deforms immediately. The buffer column 14 is made of polyurethane foam, which has the characteristics of low density, good flexibility, high recovery rate and excellent impact resistance. When the buffer column 14 deforms, it can absorb more downward pressure potential energy. When the rotating column 12 is reset, the buffer column 14 will also recover, so as to perform a secondary buffering operation. Based on the buffering of the damper 20, the buffering effect on the downward pressure of the support base 6 is further improved, making the buffering effect better.

[0032] Reference Figure 4 The clamping mechanism includes two slides 10 inside the support base 6. One slide 10 is rotatably connected to a bidirectional lead screw 11, and the other slide 10 is fixedly connected to a support rod 21. Both ends of the bidirectional lead screw 11 are threadedly connected to clamping seats 8. The clamping seats 8 are slidably connected to the support rod 21. By rotating the bidirectional lead screw 11, the two clamping seats 8 can be driven to move in opposite directions, thereby clamping workpieces of different sizes, reducing the shaking phenomenon of the workpiece during the stamping process, and further improving the stamping effect of the workpiece.

[0033] Reference Figure 4 The replacement mechanism includes two screws 17 inserted inside the clamping seat 8. One end of each screw 17 is fixedly connected to a corresponding replacement plate 9. The outer side of each screw 17 is threaded, and a locking nut 18 is threaded onto the threaded portion of each screw 17. The locking nuts 18 abut against the outer side of the clamping seat 8. By loosening the locking nuts 18, the fixation between the screw 17 and the clamping seat 8 can be released, thereby facilitating the replacement of the replacement plate 9 with the screws 17 according to the shape of the workpiece, so as to adapt to the processing of different irregular parts and improve adaptability.

[0034] Reference Figure 2 Pressure relief pipes 15 are embedded inside the workbench 1 and on both sides of the buffer groove 16. One end of each pressure relief pipe 15 extends to the outside of the workbench 1 and the other end extends into the inside of the buffer groove 16. With the pressure relief pipes 15, as the limiting plate 13 is pressed down and the buffer column 14 is ventilated, the air in the buffer groove 16 will be quickly discharged into the workbench 1 through the pressure relief pipes 15, so that the air pressure in the buffer groove 16 is relatively stable.

[0035] Reference Figure 2 An L-shaped plate is fixedly connected to the top of the workbench 1. Two stamping cylinders are fixedly installed on the top of the L-shaped plate. A stamping plate is set inside the L-shaped plate. The piston rods of the stamping cylinders are fixedly connected to the stamping plate. By extending and retracting the piston rods of the stamping cylinders, the stamping plate can be pushed downward to perform a stamping operation.

[0036] Reference Figure 1 A servo motor 7 is fixedly installed on the outside of the support base 6. The output shaft of the servo motor 7 extends into the interior of the slide groove 10 and is fixedly connected to the bidirectional lead screw 11. The interior of the worktable 1 is hinged with a closed door. The rotation of the output shaft of the servo motor 7 can drive the rotation of the bidirectional lead screw 11 to realize the transmission of power.

[0037] Working principle: First, the workpiece to be stamped is placed on the support seat 6. The servo motor 7 and the stamping cylinder are started by the external control equipment. The rotation of the bidirectional lead screw 11 can drive the two clamping seats 8 to move in opposite directions, thereby clamping workpieces of different sizes, reducing the shaking of the workpiece during the stamping process, and further improving the stamping effect. When the stamping plate presses down, it will generate a large impact force on the support seat 6. The support seat 6 will move down under pressure, and then the connecting rod 5 will push the buffer block 4 to slide in the corresponding mounting groove 2, which will trigger the damper 20. The damper 20 uses damping characteristics to reduce mechanical vibration and consume kinetic energy, so that the support seat 6 has a continuous and stable buffering effect. At the same time, the buffer spring 19 will also be compressed and produce a large deformation, which has a certain buffering effect. The damper 20 has been used in most buffer processing machines. It has the characteristics of good buffering effect, long service life and relatively stable performance, thereby improving the stability of the buffer structure in the friction press.

[0038] Furthermore, when the rotating column 12 presses downward, the buffer column 14 in the buffer groove 16 deforms immediately. The buffer column 14 is made of polyurethane foam, which has the characteristics of low density, good flexibility, high recovery rate and excellent impact resistance. After the buffer column 14 deforms, it can absorb more downward pressure potential energy. When the rotating column 12 returns to its original position, the buffer column 14 will also recover, so as to perform a secondary buffering operation. Based on the buffering of the damper 20, the buffering effect on the downward pressure of the support seat 6 is further improved, making the buffering effect better. By loosening the locking nut 18, the fixation between the screw 17 and the clamping seat 8 can be released, which makes it easier to replace the replacement plate 9 with the screw 17 according to the shape of the workpiece, so as to adapt to the processing of different irregular parts and improve adaptability.

[0039] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A friction press with a buffer device, comprising a table (1), characterized in that: The workbench (1) has mounting slots (2) at both ends. Buffer blocks (4) are slidably connected inside the mounting slots (2). Two fixed rods (3) are fixedly connected inside the mounting slots (2). Damperes (20) are fixedly installed on the inner wall of the mounting slots (2) between the two fixed rods (3). The other end of the damper (20) is fixedly connected to the corresponding buffer block (4). Buffer springs (19) are sleeved on the outer side of the fixed rods (3) and on one side of the buffer block (4). Connecting rods (5) are rotatably connected to both sides of the buffer block (4). A support seat (6) is provided at the top of the workbench (1) between the two mounting slots (2). The support seat (6) is rotatably connected to the end of the connecting rod (5) away from the buffer block (4). A reinforcing mechanism is provided inside the workbench (1). A clamping mechanism is provided inside the support seat (6). A replacement mechanism is provided at the top of the clamping mechanism.

2. A friction press with a buffer device according to claim 1, characterized in that: The reinforcing mechanism includes a buffer groove (16) located inside the workbench (1) and between two mounting slots (2). A buffer column (14) is provided inside the buffer groove (16). A limiting plate (13) is slidably connected inside the buffer groove (16). A rotating column (12) is fixedly connected to the top of the limiting plate (13). The top of the rotating column (12) extends to the outside of the workbench (1) and is fixedly connected to the support base (6).

3. A friction press with a buffer device according to claim 1, characterized in that: The clamping mechanism includes two slides (10) formed inside the support base (6). One of the slides (10) is rotatably connected to a bidirectional lead screw (11), and the other slide (10) is fixedly connected to a support rod (21). Both ends of the bidirectional lead screw (11) are threadedly connected to clamping seats (8), and the clamping seats (8) are slidably connected to the support rod (21).

4. A friction press with a buffer device according to claim 3, characterized in that: The replacement mechanism includes two screws (17) inserted inside the clamping seat (8). One end of each screw (17) is fixedly connected to the corresponding replacement plate (9). The outer side of each screw (17) is provided with threads. The threaded part of each screw (17) is threadedly connected to a locking nut (18). The locking nut (18) abuts against the outer side of the clamping seat (8).

5. A friction press with a buffer device according to claim 2, characterized in that: Pressure relief pipes (15) are embedded inside the workbench (1) and on both sides of the buffer groove (16). One end of each pressure relief pipe (15) extends to the outside of the workbench (1) and the other end extends to the inside of the buffer groove (16).

6. A friction press with a buffer device according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to an L-shaped plate, and two stamping cylinders are fixedly installed on the top of the L-shaped plate. A stamping plate is provided inside the L-shaped plate, and the piston rods of the stamping cylinders are fixedly connected to the stamping plate.

7. A friction press with a buffer device according to claim 3, characterized in that: A servo motor (7) is fixedly installed on the outside of the support base (6). The output shaft of the servo motor (7) extends into the interior of the slide groove (10) and is fixedly connected to the bidirectional lead screw (11). A closed door is hinged inside the worktable (1).

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