Independent floating mechanism

Abstract

The utility model discloses an independent floating mechanism, which belongs to the technical field of stamping dies and comprises a base, a lower die arranged at the upper end of the base, a fixing cavity arranged at the inner end of the lower die, a floating plate arranged above the base, and a mounting plate fixedly connected to the lower end of the floating plate. According to the scheme, limiting in the vertical direction is provided through the magnetic repulsion type guide mechanism, a buffering effect is provided for pressure borne by a reset spring when the upper die punches a workpiece, and therefore the service life of the reset spring is effectively prolonged; an auxiliary floating material effect can be provided under the condition that the reset spring is slightly damaged, the accuracy of the reset spring in the mounting process can be ensured through the reset spring assembling mechanism, dislocation or inclination is avoided, the movement range of the reset spring in the dismounting and mounting process is effectively limited, the possibility that the reset spring suddenly pops out is reduced, and the service life of the reset spring is prolonged. Therefore, the operation difficulty is reduced, and the operation safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, and more specifically to an independent floating material mechanism. Background Art

[0002] During the stamping process, it is often necessary to lift the stamped material to a predetermined position so that it can be clamped by the mechanical gripper installed on the stamping machine, and then placed in the next stamping station for stamping operation. The independent floating mechanism is the mold component that ejects the workpiece after stamping.

[0003] The Chinese utility model patent with announcement number CN220112130U discloses a floating material mechanism of an automobile stamping die, which is provided with a reciprocating mechanism at the bottom end of a mounting plate. The damper, mounting block, telescopic spring, fixing rod, movable sleeve, hinge block and hinge rod of the reciprocating mechanism cooperate with each other to drive the floating material plate and the mounting plate to reciprocate and lift the workpiece. Moreover, when in use, the damper and the hinge rod can relieve the pressure on the spring and extend the service life of the spring, thereby greatly improving the practicality of the mechanism when in use.

[0004] There are still some problems in the use of the above patent. At present, the reset spring under the float plate is a wearing part. Even if the pressure it is subjected to during use is reduced, it is still inevitable to avoid the fatigue damage accumulated during long-term use. Therefore, it is necessary to simulate the stamping process regularly to observe whether the floating mechanism of the mold moves smoothly, so as to judge whether the spring under the float plate needs to be replaced. In the process of replacing the spring, the spring pliers need to be placed on both sides of the spring to ensure that the pliers can firmly clamp the spring. At the same time, the spring pliers are pulled outward to gradually loosen the spring. In this process, the pliers need to be kept stable to prevent the spring from popping out suddenly. This replacement process is difficult and dangerous in operation. At the same time, the above patent still has the problem that the telescopic spring and the reset spring will still have fatigue damage, which affects the floating effect, so that the stamping effect of the workpiece is affected. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide an independent floating material mechanism. This scheme provides vertical limiting through a magnetic repulsion guide mechanism, and provides a buffering effect for the pressure exerted on the reset spring when the upper die stamps the workpiece, thereby effectively extending the service life of the reset spring. It can also provide auxiliary floating material when the reset spring is slightly damaged. The reset spring assembly mechanism can ensure the accuracy of the reset spring during the installation process to avoid misalignment or tilting, effectively limit the range of movement of the reset spring during the disassembly and assembly process, and reduce the possibility of the reset spring popping out suddenly, thereby reducing the difficulty of operation and improving the safety of operation at the same time.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] An independent floating material mechanism comprises a base, a lower mold is arranged at the upper end of the base, a fixed cavity is opened at the inner end of the lower mold, a floating material plate is arranged above the base, a mounting plate is fixedly connected to the lower end of the floating material plate, a magnetic repulsion guide mechanism and a spring assembly mechanism are arranged in the fixed cavity, the magnetic repulsion guide mechanism comprises a guide cylinder, the guide cylinder is arranged at the geometric center of the fixed cavity, a slide groove is opened on the guide cylinder, a guide column is fixedly connected to the lower end of the mounting plate, the guide column is arranged at the geometric center of the lower end of the mounting plate, a limit block is fixedly connected to the end of the guide column away from the mounting plate, and the limit block slides with the slide groove The connection is that the lower end of the limit block is fixedly connected with a magnetic block 1, and the inner bottom end of the slide groove is fixedly connected with a magnetic block 2, and the magnetic poles of the ends of the magnetic block 1 and the magnetic block 2 that are close to each other are the same, and the spring assembly mechanism includes positioning grooves opened at the four corners of the inner bottom end of the lower mold and the four corners of the bottom surface of the mounting plate, and a plurality of the positioning grooves are movably connected with positioning blocks, and the geometric centers of the positioning blocks that are close to each other are fixedly connected with a reset spring, and four threaded grooves are opened on the lower mold, the mounting plate and the positioning block, and the lower positioning block and the lower mold, as well as the upper positioning block and the mounting plate, are fixed by installing fastening bolts at the threaded grooves.

[0010] Furthermore, the slide groove is an annular slide groove, the limit block is a circular plate-shaped limit block matching the shape of the slide groove, and the outer diameter of the limit block is larger than the inner diameter of the slide groove opening.

[0011] Furthermore, a magnetic shielding ring is embedded in the inner end of the guide cylinder, and the magnetic shielding ring is located outside the first magnetic block and the second magnetic block.

[0012] Furthermore, the distance between the magnetic block 1 and the magnetic block 2 is greater than the travel of the floating plate after being punched.

[0013] Furthermore, the positions of the positioning grooves opened on the lower mold and the mounting plate correspond one to one, the positioning grooves are trapezoidal grooves with large openings and small interiors, and the positioning blocks are trapezoidal positioning blocks with matching shapes.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) This solution provides vertical limit through the magnetic repulsion guide mechanism, and provides a buffering effect for the pressure on the return spring when the upper die punches the workpiece, thereby effectively extending the service life of the return spring, and can also provide auxiliary floating material when the return spring is slightly damaged.

[0017] (2) This solution can ensure the accuracy of the reset spring during installation through the reset spring assembly mechanism, avoid misalignment or tilting, effectively limit the range of motion of the reset spring during disassembly and assembly, and reduce the possibility of the reset spring suddenly popping out, thereby reducing the difficulty of operation and improving the safety of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front cross-sectional view of the utility model;

[0019] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 For this utility model Figure 1 Enlarged view of point B in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of the positioning block, spring and fastening bolt of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure after the mounting plate in the utility model is turned over.

[0023] Description of the numbers in the figure:

[0024] 1. Base; 2. Lower die; 3. Fixed cavity; 4. Floating plate; 5. Mounting plate; 6. Guide cylinder; 601, slide groove; 7. Guide column; 8. Limit block; 9. Magnetic block 1; 10. Magnetic block 2; 11. Magnetic shielding ring; 12. Positioning groove; 13. Positioning block; 14. Reset spring; 15. Threaded groove; 16. Fastening bolt. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Embodiment 1:

[0029] See also Figure 1-5 An independent floating material mechanism comprises a base 1, a lower die 2 is arranged at the upper end of the base 1, a movable door can be opened on the front of the lower die 2 to provide an operating space for the detection and replacement of the positioning block 13 and the reset spring 14, a fixed cavity 3 is opened at the inner end of the lower die 2, a floating material plate 4 is arranged above the base 1, a mounting plate 5 is fixedly connected to the lower end of the floating material plate 4, and a magnetic repulsion guide mechanism and a spring assembly mechanism are arranged in the fixed cavity 3.

[0030] See also Figure 1 , Figure 2 as well as Figure 5The magnetic repulsion guide mechanism includes a guide cylinder 6, which is arranged at the geometric center of the fixed cavity 3. A slide groove 601 is provided on the guide cylinder 6. A guide column 7 is fixedly connected to the lower end of the mounting plate 5. The guide column 7 is arranged at the geometric center of the lower end of the mounting plate 5. The end of the guide column 7 away from the mounting plate 5 is fixedly connected to a limit block 8. The outer end of the limit block 8 can be installed with a rubber layer adapted to its shape. The limit block 8 is slidably connected to the slide groove 601. The slide groove 601 is an annular slide groove. The limit block 8 is a circular plate-shaped limit block matching the shape of the slide groove 601, and the outer diameter of the limit block 8 is larger than the inner diameter of the opening of the slide groove 601, which is used to limit the upward movement of the limit block 8. That is, when the limit block 8 is located at the top end of the slide groove 601, the height of the floating plate 4 at this time is the stamping height. The lower end of the limit block 8 is fixedly connected to a magnetic block 1 9, and the inner bottom end of the slide groove 601 is fixedly connected to a magnetic block 2 10. The end of the magnetic block 1 9 and the magnetic block 2 10 close to each other The magnetic poles are the same, and the distance between the magnetic block 1 9 and the magnetic block 2 10 is greater than the travel of the floating plate 4 after being stamped. When the upper die is stamping the workpiece, the collision between the magnetic block 1 9 and the magnetic block 2 10 is avoided, so as to ensure the safety of the magnetic equipment when in use. A magnetic shielding ring 11 is embedded in the inner end of the guide cylinder 6, and the magnetic shielding ring 11 is located on the outer side of the magnetic block 1 9 and the magnetic block 2 10. The magnetic force between the magnetic block 1 9 and the magnetic block 2 10 is isolated from the outside by the magnetic shielding ring 11 to avoid interference of the magnetic force on the normal operation of the mold. After the upper die stamps the workpiece on the floating plate 4, it drives the guide column 7 and the limit block 8 to move downward. After the stamping is completed, the limit block 8 is reset by the magnetic repulsion force between the magnetic block 1 9 and the magnetic block 2 10. In this process, the limit block 8 is always located in the slide groove 601 and reciprocates up and down along the slide groove 601, which can provide vertical limit and provide a certain buffering effect for the pressure on the reset spring 14 when the upper die is stamping the workpiece.

[0031] See also Figure 1 as well as Figure 3-4The spring assembly mechanism includes positioning grooves 12 provided at the four corners of the bottom end of the lower die 2 and the four corners of the bottom surface of the mounting plate 5. A plurality of positioning grooves 12 are movably connected with positioning blocks 13. A pair of positioning blocks 13 are fixedly connected with a return spring 14 at the geometric center close to one end. Four threaded grooves 15 are provided on the lower die 2, the mounting plate 5 and the positioning blocks 13. The lower positioning block 13 and the lower die 2 and the upper positioning block 13 and the mounting plate 5 are fixed by installing fastening bolts 16 at the threaded grooves 15. The positions of the positioning grooves 12 provided on the lower die 2 and the mounting plate 5 correspond to each other. The positioning grooves 12 are trapezoidal grooves with large openings and small interiors. The positioning block 13 is a trapezoidal positioning block with a matching shape. This installation method of distributing the reset spring 14 at the four corners can disperse the force on the mold during the stamping process and reduce the situation where the single point is subjected to excessive force. At the same time, the adaptive design of the positioning groove 12 and the positioning block 13 can avoid the shaking or instability caused by the reset spring 14 being installed alone, ensure the accuracy of the reset spring 14 during the installation process, avoid dislocation or tilt, provide convenience for assembly, and effectively limit the range of movement of the reset spring 14 during the disassembly and assembly process, reduce the possibility of the reset spring 14 popping out suddenly, thereby reducing the difficulty of operation and improving the safety of operation.

[0032] Working principle: When the floating material mechanism is in use, when the workpiece on the floating material plate 4 is stamped, the mounting plate 5, the guide column 7 and the limit block 8 move synchronously, so that the limit block 8 slides in the slide groove 601 and provides vertical limitation. At the same time, the magnetic repulsion force generated between the magnetic block 1 9 and the magnetic block 2 10 can be used to provide a buffering effect on the pressure exerted on the reset spring 14, so as to extend the service life of the reset spring 14. After a single stamping is completed, the floating material plate 4 is reset by the reset spring 14 and the magnetic repulsion force provided by the magnetic block 1 9 and the magnetic block 2 10. The adaptive design of the positioning groove 12 and the positioning block 13 can avoid the shaking or instability caused by the reset spring 14 being installed alone, ensure the accuracy of the reset spring 14 during the installation process, avoid dislocation or tilt, and at the same time effectively limit the range of movement of the reset spring 14 during the disassembly and assembly process, reduce the possibility of the reset spring 14 popping out suddenly, thereby reducing the difficulty of operation and improving the safety of operation.

[0033] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An independent floating material mechanism, comprising a base (1), a lower mold (2) is arranged at the upper end of the base (1), a fixing cavity (3) is opened at the inner end of the lower mold (2), a floating material plate (4) is arranged above the base (1), and a mounting plate (5) is fixedly connected to the lower end of the floating material plate (4), characterized in that: The fixed cavity (3) is provided with a magnetic repulsion guide mechanism and a spring assembly mechanism; The magnetic repulsion guide mechanism comprises a guide cylinder (6), the guide cylinder (6) is arranged at the geometric center of the fixed cavity (3), a slide groove (601) is provided on the guide cylinder (6), the lower end of the mounting plate (5) is fixedly connected with a guide column (7), the guide column (7) is arranged at the geometric center of the lower end of the mounting plate (5), the end of the guide column (7) away from the mounting plate (5) is fixedly connected with a limit block (8), the limit block (8) is slidably connected with the slide groove (601), the lower end of the limit block (8) is fixedly connected with a magnetic block 1 (9), the inner bottom end of the slide groove (601) is fixedly connected with a magnetic block 2 (10), and the magnetic poles of the ends of the magnetic block 1 (9) and the magnetic block 2 (10) that are close to each other are the same; The spring assembly mechanism comprises positioning grooves (12) provided at four corners of the bottom end of the lower die (2) and at four corners of the bottom surface of the mounting plate (5), a plurality of the positioning grooves (12) are movably connected with positioning blocks (13), a pair of the positioning blocks (13) are fixedly connected with a return spring (14) at the geometric center close to one end, the lower die (2), the mounting plate (5) and the positioning blocks (13) are provided with four thread grooves (15), the lower positioning block (13) and the lower die (2) and the upper positioning block (13) and the mounting plate (5) are fixed by installing fastening bolts (16) at the thread grooves (15).

2. The independent floating material mechanism according to claim 1, characterized in that: The slide groove (601) is an annular slide groove, the limit block (8) is a circular plate-shaped limit block matching the shape of the slide groove (601), and the outer diameter of the limit block (8) is larger than the inner diameter of the opening of the slide groove (601).

3. The independent floating material mechanism according to claim 1 is characterized in that: A magnetic shielding ring (11) is embedded in the inner end of the guide cylinder (6), and the magnetic shielding ring (11) is located outside the magnetic block 1 (9) and the magnetic block 2 (10).

4. The independent floating material mechanism according to claim 1 is characterized in that: The distance between the magnetic block 1 (9) and the magnetic block 2 (10) is greater than the travel of the floating plate (4) after being punched.

5. The independent floating material mechanism according to claim 1, characterized in that: The positions of the positioning grooves (12) opened on the lower mold (2) and the mounting plate (5) correspond to each other. The positioning grooves (12) are trapezoidal grooves with a large opening and a small interior. The positioning blocks (13) are trapezoidal positioning blocks with matching shapes.

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