A protective device for punch presses

Abstract

This utility model relates to the field of punch press technology and discloses a protective device for a punch press. The device includes a punch press, a first cylinder fixedly mounted externally, a push rod at the output end of the first cylinder, a protective plate at one end of the push rod, slide rails fixedly connected to both sides of the punch press, a slider slidably connected inside the slide rails, and the protective plate fixedly connected to the outside of the slider. A cavity is formed inside the punch press and the protective plate, and a limit shaft is inserted into the cavity. A second cylinder is fixedly connected to the outside of the protective plate, and a coupling is fixedly connected to the output end of the second cylinder. A connecting shaft is movably mounted inside the coupling. This utility model has the following advantages and effects: when the protective plate is raised, it can cover the punch plate and the processing plate, thereby providing a safe protection effect for the stamped parts during the stamping process.

Description

Technical Field

[0001] This utility model relates to the field of punch press technology, and in particular to a protective device for punch presses. Background Technology

[0002] A punch press is a stamping press. Compared with traditional machining, stamping technology has advantages such as saving materials and energy, high efficiency, low operator skill requirements, and the ability to produce products that cannot be achieved by machining through the application of various molds. Therefore, its use is becoming more and more widespread.

[0003] In the prior art, such as the Chinese patent publication number CN211105833U, a punch press with a guiding and error-correcting effect is disclosed. This includes a punch press base, a stamping die on the top of the base, the stamping die being fixedly connected to the base, an L-shaped support column on the top of the base and one side of the die, the bottom of the vertical rod of the L-shaped support column being fixedly connected to the base, and a punch cutter on the bottom of the horizontal rod of the L-shaped support column and directly above the die. The beneficial effects achieved by this invention are: this punch press has a guiding and error-correcting effect. By setting a fixed guiding mechanism below the punch cutter head, the punch cutter head can be corrected. The internal structure of the guiding mechanism is double-layered, first limiting the lateral displacement of the punch cutter head, and then limiting the longitudinal displacement, thus preventing displacement of the cutter head during descent. The guiding mechanism is fixedly connected and its position is relatively fixed to the bottom stamping template, preventing punching offset.

[0004] Punch presses have the advantages of small size and high power, making them suitable for various fields. However, the extremely strong impact force generated by punch presses during operation can easily cause safety accidents and irreversible damage. Therefore, how to protect punch presses during operation is an urgent problem to be solved. Utility Model Content

[0005] The purpose of this invention is to provide a protective device for punch presses, which can protect the punch press during operation.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a protective device for a punch press, comprising a punch press, a first cylinder fixedly installed on the outside of the punch press, a push rod provided at the output end of the first cylinder, a protective plate provided at one end of the push rod, slide rails fixedly connected to both sides of the outside of the punch press, a slider slidably connected inside the slide rails, the protective plate fixedly connected to the outside of the slider, a cavity opened inside the punch press and the protective plate, a limit shaft inserted inside the cavity, a second cylinder fixedly connected to the outside of the protective plate, a coupling fixedly connected to the output end of the second cylinder, a connecting shaft movably installed inside the coupling, and a robot arm fixedly connected to one end of the connecting shaft.

[0007] By adopting the above technical solution, when the punch press is in operation, the first cylinder is activated, causing the first cylinder to drive the push rod to extend and retract. The protective plate is installed at the end of the push rod, which in turn causes the first cylinder to drive the protective plate to rise and fall. During this process, the protective plate will slide inside the slide rail via a slider. The slider and the slide rail limit the protective plate, so that the protective plate can only move linearly inside the slide rail. When the protective plate is raised, it can cover the punch plate and the processing plate, thus providing a safety protection effect for the stamped parts during the stamping process. The limiting shaft is inserted into the cavity inside the punch press and the protective plate, which can limit the protective plate and reduce the load-bearing capacity of the first cylinder. While the protective plate is covering the punch plate and the processing plate, the robot arm is installed inside the coupling via a connecting shaft. The second cylinder is activated, causing the second cylinder to drive the robot arm to extend and retract. The robot arm clamps the stamped parts, thus preventing the stamped parts from shifting during the stamping process.

[0008] A further feature of this invention is that grooves are provided on both sides inside the slider, and pulleys are rotatably connected inside the grooves.

[0009] By adopting the above technical solution, the pulley is rotatably connected to the inner side of the slider through the groove, and the pulley contacts the inner wall of the slide rail. When the slider moves, the pulley will travel on the inner wall of the slide rail, improving the smoothness of the slider during movement and preventing the slider from getting stuck.

[0010] A further feature of this invention is that the number of pulleys is four, and the four pulleys are distributed in a rectangular array.

[0011] By adopting the above technical solution, four pulleys are distributed on both sides of the outside of the slider, and all four pulleys are in contact with the inner wall of the slide rail.

[0012] A further feature of this invention is that one end of the push rod is fixedly connected to a clamping block, and the protective plate extends into the interior of the clamping block.

[0013] By adopting the above technical solution, the protective plate is installed inside the clamping block, so that the protective plate is connected to the end of the push rod through the clamping block.

[0014] A further feature of this invention is that the internal thread of the clamping block is connected to a locking screw, and the external thread of the locking screw is connected to a locking nut.

[0015] By adopting the above technical solution, the locking screw is inserted into the inside of the clamping block and the protective plate, and then the locking nut is threaded to both ends of the locking screw, so that the protective plate can be fixed inside the clamping block. This not only provides a good fixing effect, but also makes it easy to disassemble and assemble.

[0016] A further feature of this invention is that a processing plate is fixedly connected inside the punch press, and a mounting groove is fixedly connected to the top of the processing plate.

[0017] By adopting the above technical solution, the stamped part is placed in the mounting groove inside the processing plate during stamping.

[0018] A further feature of this invention is that a hydraulic cylinder is provided inside the punch press, and a punch plate is fixedly connected to the output end of the hydraulic cylinder.

[0019] By adopting the above technical solution, the punch is set at the center of the top of the processing plate. The hydraulic cylinder is activated, which drives the punch to extend and retract, thereby enabling the stamping of the stamped parts.

[0020] A further feature of this invention is that the punch press has heat dissipation holes inside, and a grid is fixedly connected inside the heat dissipation holes.

[0021] By adopting the above technical solution, since the hydraulic cylinder is located inside the punch press, the heat generated by the hydraulic cylinder is discharged through the heat dissipation holes, and the grille covers the heat dissipation holes to prevent impurities from entering.

[0022] A further feature of this invention is that a first cylinder frame and a second cylinder frame are fixedly connected to the outside of the punch press.

[0023] By adopting the above technical solution, the first cylinder bracket and the second cylinder bracket respectively fix the first cylinder and the second cylinder.

[0024] A further feature of this invention is that the robotic arm is mechanically driven.

[0025] By adopting the above technical solution, the robotic arm includes a mechanical disk, inside which two gears mesh, and two mechanical claws are fixed at the center of the gears. The two gears are driven by a motor, thereby enabling the two mechanical claws to grasp.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model, through the arrangement of a punch press, a first cylinder, a push rod, a protective plate, a slide rail, a slider, a cavity, a limiting shaft, a second cylinder, a coupling, a connecting shaft, and a robot, allows the punch press to operate. When the punch press is in operation, the first cylinder is activated, driving the push rod to extend and retract. The protective plate is installed at the end of the push rod, causing the first cylinder to drive the protective plate to rise and fall. During this process, the protective plate slides within the slide rail via the slider. The slider and slide rail limit the protective plate, ensuring it can only move linearly within the slide rail. When the protective plate rises, it covers the punch plate and processing plate, providing safety protection for the stamped parts during the stamping process. While the protective plate covers the punch plate and processing plate, the robot is installed inside the coupling via the connecting shaft. The second cylinder is activated, driving the robot to extend and retract, clamping the stamped parts and preventing them from shifting during stamping.

[0028] 2. This utility model, through the arrangement of pulleys, clamping blocks, locking screws, and locking nuts, allows the pulleys to rotate and connect to the inner side of the slider via grooves, and the pulleys contact the inner wall of the slide rail. When the slider moves, the pulleys will travel along the inner wall of the slide rail, improving the smoothness of the slider's movement and preventing the slider from jamming. The protective plate is installed inside the clamping block, so that the protective plate is connected to the end of the push rod through the clamping block. The locking screw passes through the clamping block and the protective plate, and then the locking nut is threaded to both ends of the locking screw, thereby fixing the protective plate inside the clamping block. This not only provides excellent fixing effect but also facilitates disassembly and assembly. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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 these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the internal structure of the slide rail of this utility model;

[0032] Figure 3 This is a top view of the protective plate of this utility model;

[0033] Figure 4 This is a side view of the clamping block of this utility model.

[0034] In the diagram, 1. Punch press; 2. First cylinder; 3. Push rod; 4. Protective plate; 5. Slide rail; 6. Slider; 7. Cavity; 8. Limiting shaft; 9. Second cylinder; 10. Coupling; 11. Connecting shaft; 12. Robot arm; 13. Pulley; 14. Clamping block; 15. Locking screw; 16. Locking nut; 17. Machining plate; 18. Mounting slot; 19. Punch plate; 20. Grille; 21. First cylinder frame; 22. Second cylinder frame. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] Reference Figure 1-4A protective device for a punch press includes a punch press 1. A first cylinder 2 is fixedly mounted on the outside of the punch press 1. A push rod 3 is provided at the output end of the first cylinder 2, and a protective plate 4 is provided at one end of the push rod 3. Slide rails 5 are fixedly connected to both sides of the outside of the punch press 1. A slider 6 is slidably connected inside the slide rails 5. The protective plate 4 is fixedly connected to the outside of the slider 6. A cavity 7 is formed inside the punch press 1 and the protective plate 4. A limit shaft 8 is inserted into the cavity 7. Inserting the limit shaft 8 into the cavity 7 inside the punch press 1 and the protective plate 4 can limit the protective plate 4 and reduce the load-bearing capacity of the first cylinder 2. A second cylinder 9 is fixedly connected to the outside of the protective plate 4. A coupling 10 is fixedly connected to the output end of the second cylinder 9. A connecting rod is movably installed inside the coupling 10. Shaft 11, with a robotic arm 12 fixedly connected to one end. When the punch press 1 is operating, the first cylinder 2 is activated, causing the first cylinder 2 to drive the push rod 3 to extend and retract. The protective plate 4 is installed at the end of the push rod 3, which in turn causes the first cylinder 2 to drive the protective plate 4 to rise and fall. During this process, the protective plate 4 will slide inside the slide rail 5 via the slider 6. The slider 6 and the slide rail 5 limit the movement of the protective plate 4, ensuring that the protective plate 4 can only move linearly inside the slide rail 5. When the protective plate 4 is raised, it can cover the punch plate 19 and the processing plate 17, thus providing a safety protection effect for the stamped parts during the stamping process. While the protective plate 4 is covering the punch plate 19 and the processing plate 17, the robotic arm 12 is installed to the coupling via the connecting shaft 11. Inside the device 10, the second cylinder 9 is activated, causing the robotic arm 12 to extend and retract. The robotic arm 12 clamps the stamped part, preventing it from shifting during stamping. Grooves are provided on both sides of the slider 6, with pulleys 13 rotatably connected inside each groove. The pulleys 13 are rotatably connected to the inner side of the slider 6 through the grooves and contact the inner wall of the slide rail 5. When the slider 6 moves, the pulleys 13 travel along the inner wall of the slide rail 5, improving the smoothness of movement and preventing jamming. There are four pulleys 13 arranged in a rectangular array on both sides of the slider 6. The inner wall of the slide rail 5 forms contact. One end of the push rod 3 is fixedly connected to a clamping block 14. The protective plate 4 extends into the interior of the clamping block 14. The protective plate 4 is installed into the interior of the clamping block 14, so that the protective plate 4 is connected to the end of the push rod 3 through the clamping block 14. The internal thread of the clamping block 14 is connected to a locking screw 15, and the external thread of the locking screw 15 is connected to a locking nut 16. The locking screw 15 passes through the interior of the clamping block 14 and the protective plate 4. Then, the locking nut 16 is threaded to both ends of the locking screw 15, so that the protective plate 4 can be fixed inside the clamping block 14. This not only provides a good fixing effect but also facilitates disassembly and assembly. The internal part of the punch press 1 is fixedly connected to a processing plate 17. The top of the processing plate 17 is fixedly connected to a mounting groove 18. When the stamped part is stamped...The stamped part is placed in the mounting groove 18 inside the processing plate 17. A hydraulic cylinder is installed inside the punch press 1, and a punch plate 19 is fixedly connected to the output end of the hydraulic cylinder. The punch plate 19 is located at the center of the top of the processing plate 17. Activating the hydraulic cylinder causes the punch plate 19 to extend and retract, thereby stamping the part. The punch press 1 has internal heat dissipation holes, and a grille 20 is fixedly connected inside the heat dissipation holes. Since the hydraulic cylinder is located inside the punch press 1, the heat generated by the hydraulic cylinder is dissipated through the heat dissipation holes. The grille covers the heat dissipation holes to prevent impurities from entering. A first cylinder frame 21 and a second cylinder frame 22 are fixedly connected to the outside of the punch press 1. The first cylinder frame 21 and the second cylinder frame 22 respectively fix the first cylinder 2 and the second cylinder 9. The robotic arm 12 is mechanically driven and includes a mechanical disk. Two gears mesh inside the mechanical disk, and two mechanical claws are fixed at the center of the gears. The two gears are driven by a motor, causing the two mechanical claws to grasp.

[0037] In this invention, when the punch press 1 is operating, the first cylinder 2 is activated, causing the first cylinder 2 to drive the push rod 3 to extend and retract. The protective plate 4 is installed at the end of the push rod 3, thereby causing the first cylinder 2 to drive the protective plate 4 to rise and fall. During this process, the protective plate 4 will slide inside the slide rail 5 via the slider 6. The slider 6 and the slide rail 5 limit the protective plate 4, ensuring that the protective plate 4 can only move linearly inside the slide rail 5. When the protective plate 4 is raised, it can cover the punch plate 19 and the processing plate 17, thereby providing a safety protection effect for the stamped parts during the stamping process. While the protective plate 4 is covering the punch plate 19 and the processing plate 17, the robot arm 12 is installed inside the coupling 10 via the connecting shaft 11. The second cylinder 9 is activated, causing the second cylinder 9 to drive the robot arm 12 to move forward. The telescopic movement of the robotic arm 12 clamps the stamped part, thereby preventing the stamped part from shifting during stamping. The pulley 13 is rotatably connected to the inner side of the slider 6 through the groove, and the pulley 13 contacts the inner wall of the slide rail 5. When the slider 6 moves, the pulley 13 will travel on the inner wall of the slide rail 5, improving the smoothness of the slider 6 during movement and preventing the slider 6 from getting stuck. The protective plate 4 is installed inside the clamping block 14, so that the protective plate 4 is connected to the end of the push rod 3 through the clamping block 14. The locking screw (15) passes through the clamping block 14 and the protective plate 4. Then the locking nut (16) is threaded to both ends of the locking screw (15), so that the protective plate 4 can be fixed inside the clamping block 14. It not only has a good fixing effect, but is also easy to disassemble and assemble.

[0038] 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 protective device for a punch press, comprising a punch press (1), characterized in that: A first cylinder (2) is fixedly installed on the outside of the punch press (1). A push rod (3) is provided at the output end of the first cylinder (2). A protective plate (4) is provided at one end of the push rod (3). Slide rails (5) are fixedly connected to both sides of the outside of the punch press (1). A slider (6) is slidably connected inside the slide rails (5). The protective plate (4) is fixedly connected to the outside of the slider (6). A cavity (7) is opened inside the punch press (1) and the protective plate (4). A limit shaft (8) is inserted into the cavity (7). A second cylinder (9) is fixedly connected to the outside of the protective plate (4). A coupling (10) is fixedly connected to the output end of the second cylinder (9). A connecting shaft (11) is movably installed inside the coupling (10). A robot arm (12) is fixedly connected to one end of the connecting shaft (11).

2. The protective device for a punch press according to claim 1, characterized in that: The slider (6) has grooves on both sides inside, and a pulley (13) is rotatably connected inside the groove.

3. A protective device for a punch press according to claim 2, characterized in that: The number of pulleys (13) is four, and the four pulleys (13) are distributed in a rectangular array.

4. A protective device for a punch press according to claim 1, characterized in that: One end of the push rod (3) is fixedly connected to a clamping block (14), and the protective plate (4) extends into the interior of the clamping block (14).

5. A protective device for a punch press according to claim 4, characterized in that: The clamping block (14) is internally threaded with a locking screw (15), and the locking screw (15) is externally threaded with a locking nut (16).

6. A protective device for a punch press according to claim 1, characterized in that: The punch press (1) is internally fixedly connected to a processing plate (17), and the top of the processing plate (17) is fixedly connected to a mounting groove (18).

7. A protective device for a punch press according to claim 1, characterized in that: The punch press (1) is equipped with a hydraulic cylinder inside, and the output end of the hydraulic cylinder is fixedly connected to a punch plate (19).

8. A protective device for a punch press according to claim 1, characterized in that: The punch press (1) has heat dissipation holes inside, and a grid (20) is fixedly connected inside the heat dissipation holes.

9. A protective device for a punch press according to claim 1, characterized in that: The punch press (1) is fixedly connected to the outside of a first cylinder frame (21) and a second cylinder frame (22).

10. A protective device for a punch press according to claim 1, characterized in that: The robotic arm (12) is mechanically driven.

Images