Automatic punch changing and positioning punch press

Abstract

This utility model relates to the field of punch press technology, and more particularly to an automatic punch changing and positioning punch press. It includes an operating table with a U-shaped beam frame positioned above it, the beam frame opening downwards, and its bottom resting on either side of the operating table. A mounting bracket for fixing and moving sheet metal is fixed to the beam frame on one side of the operating table. A control box is located on the other side of the operating table, fixed to the side of the beam frame. A housing with an open bottom is located on top of the control box, one end of which is fixed to the control box, and the other end resting on the operating table. This utility model, through a rotatable turntable and multiple U-shaped grooves combined with a spring-loaded structure, can pre-store multiple punches. Automatic positioning and replacement of the punches are achieved via a first linear motor and a second drive motor, eliminating the need for manual intervention, significantly reducing downtime, and improving punching efficiency.

Description

Technical Field

[0001] This utility model relates to the field of punch press technology, and in particular to a punch press machine with automatic punch changing and positioning. Background Technology

[0002] A punch press is a type of stamping press. In national production, stamping technology is increasingly widely used due to its advantages over traditional machining: saving materials and energy, high efficiency, lower operator skill requirements, and the ability to produce products that cannot be achieved through machining using various molds. Stamping production is primarily for sheet metal. Using molds, it can produce blanking, punching, forming, deep drawing, trimming, fine blanking, shaping, riveting, and extruded parts, etc., and is widely used in various fields.

[0003] When processing sheet metal using a punch press, multiple punches are installed below the hydraulic mechanism due to the different punching patterns required. However, even so, the limited space at the bottom of the hydraulic mechanism restricts the number of punches that can be installed. This means that during operation, for too many punching patterns, the machine must be stopped to change the punches, significantly reducing the operational progress. Therefore, we propose an automatic punch changing and positioning punch press. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing an automatic punch changing and positioning punch press machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automatic punch changing and positioning punch press machine, including an operating table, a U-shaped beam frame is provided above the operating table, the opening of the beam frame is set downward, and the bottom of the beam frame is placed on both sides of the operating table. A mounting frame for fixing and moving the plates is provided on one side of the operating table, and the mounting frame is fixed to the beam frame. A control box is provided on the other side of the operating table. The control box is fixed on the side of the beam frame. A housing with an opening at the bottom is provided on the top of the control box. One end of the housing is fixed to the control box, and the other end of the housing is positioned above the operating table. An installation plate is provided at the end of the housing away from the control box. A chuck for fixing the punch is installed at the bottom center of the installation plate. A drive shaft is vertically installed at the top center of the installation plate. A first drive motor is installed at the top of the drive shaft. The first drive motor is located in a first motor housing. The drive shaft is rotatably connected to the first motor housing. A fixing plate is installed on the top of the first motor housing. A first pushing mechanism is vertically installed at the top center of the fixing plate. The first pushing mechanism is fixed on the top of the housing. A first linear motor is installed inside the other end of the housing. The slide rail of the first linear motor is fixed to the top inside the housing. A second motor housing is installed on the slider of the first linear motor. A second drive motor is installed inside the second motor housing. A connecting shaft is connected to the bottom of the second drive motor. The connecting shaft passes through the second motor housing and the two are rotatably connected. A turntable is installed on the bottom of the connecting shaft through a connector. Multiple U-shaped grooves are opened along the edge of the turntable. The U-shaped grooves are arranged in the radial direction of the turntable. An arc plate is installed on the inner side of the U-shaped groove. Several L-shaped spring pieces are arranged at intervals inside the arc plate. One end of the spring piece is fixed to the inner wall of the arc plate.

[0006] Preferably, a controller is installed inside the control box, and the controller is connected to the first drive motor, the second drive motor, the first linear motor, and the first push mechanism respectively via wires.

[0007] Preferably, a touch screen is installed on the top side of the control box, and the touch screen is connected to the controller via a wire.

[0008] Preferably, an inlet / outlet is provided on the side of the housing near the control box, and a cover plate is hinged to one side of the inlet / outlet. The other side of the cover plate is fixed to the housing by a latch. The connecting component includes a universal joint, one end of which is fixed to the bottom of the connecting shaft. A drive shaft is installed on the bottom of the universal joint, and the bottom of the drive shaft is fixed to the turntable. A third pushing mechanism is provided on the side of the universal joint away from the cover plate. The third pushing mechanism is connected to the controller through a wire. Both ends of the third pushing mechanism are rotatably installed in U-shaped seats. A connecting plate is installed on one U-shaped seat and is fixed to the second motor housing. A sleeve is installed on the other U-shaped seat and is fitted onto the drive shaft. The sleeve is rotatably connected to the drive shaft.

[0009] Preferably, the mounting frame includes a U-shaped frame with its opening facing the control box. The U-shaped frame is placed on the operating table. A second linear motor is installed inside the U-shaped frame. The slide rail of the second linear motor is fixed inside the U-shaped frame, and a support plate is installed on the slider of the second linear motor. Clamps for fixing the plate are installed at both ends of the support plate. A second pushing mechanism is vertically installed in the middle of the other side of the U-shaped frame. The second pushing mechanism is fixed on the beam frame. The second pushing mechanism and the second linear motor are both connected to the controller through wires.

[0010] Preferably, a first guide shaft is provided parallel to the side of the second pushing mechanism, one end of the first guide shaft is fixed on the U-shaped frame, and the other end of the first guide shaft slides through the beam frame.

[0011] Preferably, an electric slip ring is provided on the drive shaft. The electric slip ring includes a rotor and a stator. The stator is fixed on the first motor housing and connected to the controller via wires. The rotor is fixed on the mounting plate and connected to the chuck via wires.

[0012] Preferably, at least one second guide shaft is provided parallel to the side of the first pushing mechanism, one end of the second guide shaft is fixed to the fixed plate, and the other end of the second guide shaft slides through the housing.

[0013] The design scheme proposed in this utility model has the following beneficial effects in application: 1. This utility model, by setting a rotatable turntable and multiple U-shaped grooves in conjunction with a spring sheet structure, can pre-store multiple punches, and realize the automatic positioning and replacement of punches through a first linear motor and a second drive motor, without manual intervention, significantly reducing downtime and improving punching efficiency.

[0014] 2. The chuck in this utility model, in conjunction with the first drive motor, can drive the punch to rotate, which can not only realize the drilling of circular holes, but also complete the punching of polygonal holes through the downward pressure of the first push mechanism, thus meeting diverse processing needs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the casing of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the internal structure of the casing of this utility model. Figure 2 .

[0016] In the diagram: 1. Operating console; 2. Beam frame; 3. U-shaped frame; 4. Second linear motor; 5. Support plate; 6. Fixture; 7. Second pushing mechanism; 8. First guide shaft; 9. Control box; 10. Housing; 11. Fixing plate; 12. First pushing mechanism; 13. Second guide shaft; 14. First drive motor; 15. First motor housing; 16. Mounting plate; 17. Chuck; 18. Drive shaft; 19. Electric slip ring; 20. First linear motor; 21. Second drive motor; 22. Second motor housing; 23. Connecting shaft; 24. Universal joint; 25. Transmission shaft; 26. Turntable; 27. U-shaped groove; 28. Arc plate; 29. ​​Spring; 30. Third pushing mechanism; 31. Sleeve; 32. Connecting plate; 33. Cover plate; 34. Touch screen display. Detailed Implementation

[0017] 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.

[0018] Example Reference Figures 1-4 An automatic punch changing and positioning punch press includes an operating table 1. A U-shaped beam frame 2 is provided above the operating table 1. The opening of the beam frame 2 is set downward, and the bottom of the beam frame 2 is placed on both sides of the operating table 1, that is, the bottom of the beam frame 2 and the bottom of the operating table 1 are placed on the ground together.

[0019] A control box 9 is provided on one side of the operating console 1. The control box 9 is fixed on the side of the beam frame 2. A controller is installed inside the control box 9. In actual use, the controller is one of the following: PLC logic controller, control host, or control motherboard.

[0020] On the other side of the operating table 1, there is a mounting frame for fixing and moving the sheet metal. The mounting frame is fixed to the beam frame 2, wherein, for example... Figure 1 and Figure 2 As shown, the mounting frame includes a U-shaped frame 3 with its opening facing the control box 9. The U-shaped frame 3 is placed on the operating table 1. A second linear motor 4 is installed inside the U-shaped frame 3. The slide rail of the second linear motor 4 is fixed inside the U-shaped frame 3, and a support plate 5 is installed on the slider of the second linear motor 4. Clamps 6 for fixing the plate are installed at both ends of the support plate 5. A second pushing mechanism 7 is vertically installed in the middle of the other side of the U-shaped frame 3. The second pushing mechanism 7 is fixed on the beam frame 2. The second pushing mechanism 7 and the second linear motor 4 are connected to the controller through wires. After the plate to be punched is placed on the operating table 1, the side of the plate can be placed in the clamp 6 for clamping and fixing. With the operation of the second linear motor 4 and the second pushing mechanism 7, the plate can be moved in multiple directions on the operating table 1. In actual use, the second pushing mechanism 7 is one of an electric push rod, a hydraulic cylinder, or a pneumatic cylinder.

[0021] Furthermore, a first guide shaft 8 is provided parallel to the side of the second pushing mechanism 7. One end of the first guide shaft 8 is fixed to the U-shaped frame 3, and the other end of the first guide shaft 8 slides through the beam frame 2 to guide the linear movement of the U-shaped frame 3 and ensure the stability of the U-shaped frame 3 when it moves.

[0022] A housing 10 with an opening at the bottom is provided on the top of the control box 9. One end of the housing 10 is fixed to the control box 9, and the other end of the housing 10 is positioned above the operating table 1.

[0023] like Figure 3 and Figure 4As shown, a mounting plate 16 is provided at the end of the housing 10 away from the control box 9. A chuck 17 for fixing the punch is installed at the bottom center of the mounting plate 16. A drive shaft 18 is vertically installed at the top center of the mounting plate 16. A first drive motor 14 is installed on the top of the drive shaft 18. The first drive motor 14 is located in the first motor housing 15. The drive shaft 18 is rotatably connected to the first motor housing 15. A fixing plate 11 is installed on the top of the first motor housing 15. A first pushing mechanism 12 is vertically installed at the top center of the fixing plate 11. The first pushing mechanism 12 is fixed on the top of the housing 10. The first push mechanism 12, chuck 17, and first drive motor 14 are all connected to the controller via wires. In actual use, the first push mechanism 12 is one of a hydraulic cylinder, an electric push rod, or a pneumatic cylinder. The chuck 17 is a three-jaw hollow hydraulic chuck. In use, the punch can be placed in the chuck 17 for fixation. Then, the first push mechanism 12 pushes the punch down to land on the perforated plate to complete the punching. With the operation of the first drive motor 14, when punching, polygonal punching can be completed by the downward pushing force of the first push mechanism 12, and circular hole drilling can be completed by the rotation of the punch driven by the first drive motor 14.

[0024] Furthermore, to ensure the normal power supply of the chuck 17, an electric slip ring 19 is provided on the drive shaft 18. The electric slip ring 19 includes a rotor and a stator. The stator is fixed on the first motor housing 15 and is connected to the controller through wires. The rotor is fixed on the mounting plate 16 and is connected to the chuck 17 through wires.

[0025] Furthermore, at least one second guide shaft 13 is provided parallel to the side of the first push mechanism 12. One end of the second guide shaft 13 is fixed to the fixed plate 11, and the other end of the second guide shaft 13 slides through the housing 10 to provide guidance for the lifting and lowering of the punch and ensure the stability of the punch during lifting and lowering.

[0026] When the punch needs to be replaced, a first linear motor 20 is installed inside the other end of the housing 10. The first linear motor 20 is connected to the controller via wires. The slide rail of the first linear motor 20 is fixed to the top inside the housing 10. A second motor housing 22 is installed on the slide of the first linear motor 20. A second drive motor 21 is installed inside the second motor housing 22. The second drive motor 21 is connected to the controller via wires. A connecting shaft 23 is connected to the bottom of the second drive motor 21. The connecting shaft 23 passes through the second motor housing 22 and the two are rotatably connected. A turntable 26 is installed on the bottom of the connecting shaft 23 via a connector. The second drive motor 21 provides power for the rotation of the turntable 26. Multiple U-shaped grooves 27 are formed along the edge of the turntable 26. The U-shaped grooves 27 are radially distributed along the turntable 26. The direction is set, and an arc plate 28 is installed on the inner side of the U-shaped groove 27. Several L-shaped spring pieces 29 are arranged at intervals in the arc plate 28. One end of the spring piece 29 is fixed to the inner wall of the arc plate 28. Multiple punches can be placed one by one in multiple U-shaped grooves 27. The elasticity of the spring piece 29 can clamp and fix the punch in the U-shaped groove 27. The arrangement of multiple U-shaped grooves 27, together with the rotation of the turntable 26, can rotate the required punch to the side close to the chuck 17. Then, under the operation of the first linear motor 20, the punch can be moved to the bottom of the chuck 17. With the first pushing mechanism 12 pushing the mounting plate 16 down, the chuck 17 can clamp the punch. Then, the first linear motor 20 operates in reverse to remove the turntable 26 from under the mounting plate 16.

[0027] Specifically, when changing the punch, one or more empty U-shaped slots 27 can be reserved in advance on the turntable 26. After the empty U-shaped slots 27 are moved to the bottom of the chuck 17, the punch on the chuck 17 can be placed in the empty U-shaped slots 27 as the first pushing mechanism 12 falls. Then the chuck 17 releases the punch and is lifted by the first pushing mechanism 12, thus completing the punch removal operation. Then the turntable 26 rotates to move the punch to be used next to the bottom of the chuck 17. Wait for the chuck 17 to fall and clamp the punch to complete the automatic punch replacement operation.

[0028] It should be noted that, as Figure 1 and Figure 4As shown, an inlet / outlet is provided on the side of the housing 10 near the control box 9. A cover plate 33 is hinged to one side of the inlet / outlet, and the other side of the cover plate 33 is fixed to the housing 10 by a latch. The connecting component includes a universal joint 24, one end of which is fixed to the bottom of the connecting shaft 23. A drive shaft 25 is mounted on the bottom of the universal joint 24, and the bottom of the drive shaft 25 is fixed to the turntable 26. A third pushing mechanism 30 is provided on the side of the universal joint 24 away from the cover plate 33, and the third pushing mechanism 30 is connected to the controller through a wire. Both ends of the third pushing mechanism 30 are rotatably mounted in U-shaped seats. A connecting plate 32 is mounted on one of the U-shaped seats, and the connecting plate 32 is connected to the second motor housing 22. One U-shaped seat is fixed, while another U-shaped seat is equipped with a sleeve 31. The sleeve 31 is fitted onto the drive shaft 25 and is rotatably connected to the drive shaft 25. During the punching process, if the number of U-shaped slots 27 is insufficient to accommodate all the required punches, the cover plate 33 can be opened during the punching process to remove the used punches from the U-shaped slots 27 and replace them with the punches to be used later. This process does not affect the punching operation on the other side, thus improving the punching efficiency. The operation of the third pushing mechanism 30 can push out one side of the turntable 26 to leave more space for punch replacement. In actual use, the third pushing mechanism 30 is one of an electric push rod, a hydraulic cylinder, or a pneumatic cylinder.

[0029] Specifically, a touch screen display 34 is installed on the top side of the control box 9. The touch screen display 34 is connected to the controller via wires to input commands and programs for the operation of the punching machine, ensuring that the punching machine performs punching operations according to the required requirements.

[0030] 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 punch press machine with automatic punch changing and positioning, characterized in that: Includes an operating table (1), and a U-shaped beam frame (2) is provided above the operating table (1). The opening of the beam frame (2) is set downward, and the bottom of the beam frame (2) is placed on both sides of the operating table (1). A mounting frame for fixing and moving the plate is provided on one side of the operating table (1), and the mounting frame is fixed on the beam frame (2); A control box (9) is provided on the other side of the operating table (1). The control box (9) is fixed on the side of the beam frame (2). A housing (10) with an open bottom is provided on the top of the control box (9). One end of the housing (10) is fixed on the control box (9), and the other end of the housing (10) is placed above the operating table (1). An installation plate (16) is provided at one end of the housing (10) away from the control box (9). A chuck (17) for fixing the punch is installed at the bottom center of the installation plate (16). A drive shaft (18) is vertically installed at the top center of the installation plate (16). A first drive motor (14) is installed at the top of the drive shaft (18). The first drive motor (14) is located in the first motor housing (15). The drive shaft (18) is rotatably connected to the first motor housing (15). A fixing plate (11) is installed at the top of the first motor housing (15). A first pushing mechanism (12) is vertically installed at the top center of the fixing plate (11). The first pushing mechanism (12) is fixed at the top of the housing (10). A first linear motor (20) is provided inside the other end of the housing (10). The slide rail of the first linear motor (20) is fixed on the top inside the housing (10). A second motor housing (22) is installed on the slider of the first linear motor (20). A second drive motor (21) is provided inside the second motor housing (22). A connecting shaft (23) is connected to the bottom of the second drive motor (21). The connecting shaft (23) passes through the second motor housing (22) and the two are rotatably connected. A turntable (26) is installed on the bottom of the connecting shaft (23) through a connector. Multiple U-shaped grooves (27) are opened along the edge of the turntable (26). The U-shaped grooves (27) are arranged in the radial direction of the turntable (26). An arc plate (28) is installed on the inner side of the U-shaped groove (27). Several L-shaped spring pieces (29) are arranged at intervals inside the arc plate (28). One end of the spring piece (29) is fixed to the inner wall of the arc plate (28).

2. The punch automatic changing and positioning punch press machine according to claim 1, characterized in that: A controller is installed inside the control box (9). The controller is connected to the first drive motor (14), the second drive motor (21), the first linear motor (20), and the first push mechanism (12) via wires.

3. The punch automatic changing and positioning punch press machine according to claim 2, characterized in that: A touch display (34) is installed on the top side of the control box (9), and the touch display (34) is connected to the controller via wires.

4. The punch automatic changing and positioning punch press machine according to claim 2, characterized in that: An inlet / outlet is provided on the side of the housing (10) near the control box (9). A cover plate (33) is hinged to one side of the inlet / outlet. The other side of the cover plate (33) is fixed to the housing (10) by a latch. The connecting parts include a universal joint (24). One end of the universal joint (24) is fixed to the bottom of the connecting shaft (23), and a drive shaft (25) is installed on the bottom of the universal joint (24). The bottom of the drive shaft (25) is fixed to the turntable (26). The universal joint (24) is located away from the cover plate (33). 3) A third push mechanism (30) is provided on one side at an inclination. The third push mechanism (30) is connected to the controller via a wire. Both ends of the third push mechanism (30) are rotatably installed in a U-shaped seat. A connecting plate (32) is installed on one of the U-shaped seats. The connecting plate (32) is fixed to the second motor box (22). A sleeve (31) is installed on the other U-shaped seat. The sleeve (31) is sleeved on the transmission shaft (25) and the sleeve (31) is rotatably connected to the transmission shaft (25).

5. A punch press machine with automatic punch changing and positioning according to claim 2, characterized in that: The mounting frame includes a U-shaped frame (3) with its opening facing the control box (9). The U-shaped frame (3) is placed on the operating table (1). A second linear motor (4) is installed on the inner side of the U-shaped frame (3). The slide rail of the second linear motor (4) is fixed inside the U-shaped frame (3). A support plate (5) is installed on the slider of the second linear motor (4). Both ends of the support plate (5) are equipped with clamps (6) for fixing the plate. A second pushing mechanism (7) is vertically installed in the middle of the other side of the U-shaped frame (3). The second pushing mechanism (7) is fixed on the beam frame (2). The second pushing mechanism (7) and the second linear motor (4) are both connected to the controller through wires.

6. The punch automatic changing and positioning punch press machine according to claim 5, characterized in that: A first guide shaft (8) is provided parallel to the side of the second push mechanism (7). One end of the first guide shaft (8) is fixed on the U-shaped frame (3), and the other end of the first guide shaft (8) slides through the beam frame (2).

7. The punch automatic changing and positioning punch press machine according to claim 2, characterized in that: An electric slip ring (19) is provided on the drive shaft (18). The electric slip ring (19) includes a rotor and a stator. The stator is fixed on the first motor housing (15) and connected to the controller via a wire. The rotor is fixed on the mounting plate (16) and connected to the chuck (17) via a wire.

8. The punch automatic changing and positioning punch press machine according to claim 1, characterized in that: At least one second guide shaft (13) is provided parallel to the side of the first push mechanism (12). One end of the second guide shaft (13) is fixed on the fixed plate (11), and the other end of the second guide shaft (13) slides through the housing (10).

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