Metal punch forming die

Abstract

The utility model discloses a metal punch forming die which comprises an upper die body, a die core is installed on the lower surface of the upper die body in an embedded mode, a lower die body is arranged below the upper die body, deviation preventing mechanisms are arranged on the upper surfaces of the two ends of the lower die body, and an emergency stop signal is sent out through the deviation preventing mechanisms when the upper die body and the lower die body deviate. According to the metal punch forming die, the conical upper end of the guide column is in contact with the lower end of the guide cylinder in the die assembly process of the upper die and the lower die; when the upper die and the lower die deviate, a worker can be prompted that the position between the upper die and the lower die deviates in the mode that the guide cylinder is pressed to make contact with the contact switch to trigger the contact switch to lighten the warning lamp, and the deviation direction of the guide cylinder is identified through the position, relative to the guide cylinder, of the lighted warning lamp. And the guide cylinder is limited by the retainer, so that the transverse displacement of the guide cylinder can be prevented in the offset die assembly process of the upper die and the lower die, and the damage to the cavity caused by the assembly of the staggered upper die and lower die is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a metal stamping forming die. Background Art

[0002] A stamping die is a special process equipment used to process materials into parts during cold stamping. It is called a cold stamping die. Stamping is a pressure processing method in which a die installed on a press is used to apply pressure to the material at room temperature to cause separation or plastic deformation, thereby obtaining the desired parts. The existing stamping die is composed of an upper die and a lower die. During the mold closing process, the upper die and the lower die cooperate to achieve stamping forming of the workpiece therein. However, during the mold closing process, the relative position accuracy between the upper and lower dies needs to be strictly guaranteed, otherwise the cavities of the upper and lower dies will collide with each other and be damaged due to misalignment. In the prior art, the position of the upper and lower dies is guaranteed by pre-contacting the guide pins and guide sleeves of the upper and lower dies. However, this makes it impossible to judge the position accuracy of the upper and lower dies during the stamping process. There is a problem of deformation of the die due to the forced cooperation of the guide pins and guide sleeves, which causes the cavity of the die to be affected by the torsional force, resulting in the accuracy of the stamped product not meeting the standard. Utility Model Content

[0003] The utility model aims to provide a metal stamping forming die to solve the problem in the above background technology that the position accuracy of the upper and lower dies cannot be determined during the stamping process.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metal stamping forming mold, comprising an upper mold, a mold core is embedded in the lower surface of the upper mold, and a lower mold is arranged below the upper mold, and anti-deflection mechanisms are arranged on the upper surfaces of both ends of the lower mold, and an emergency stop signal is issued through the anti-deflection mechanism when the upper mold and the lower mold deviate.

[0005] Preferably, the anti-deflection mechanism includes a support plate, which is slidably mounted on the outer surfaces of both ends of the lower mold, and a guide column is fixedly provided on the upper surface of the support plate, a push switch is fixedly installed on the outer surfaces of both ends of the lower mold, a sliding slide plate is installed on the upper surface of the support plate, and a contact block is fixedly provided on the lower surface of the slide plate.

[0006] By adopting the above technical solution, the contact block can press the press switch during the sliding process to send an emergency stop signal.

[0007] Preferably, a mounting cylinder is fixedly provided on the lower surface of both ends of the upper mold, and the lower end of the mounting cylinder is connected to a guide cylinder through a spring, a contact switch is fixedly provided on the inner surface of the mounting cylinder, and a warning light is fixedly provided on the outer surface of the mounting cylinder, a retaining frame is provided inside the mounting cylinder, and a baffle is fixedly provided on the outer surface of the guide cylinder.

[0008] By adopting the above technical solution, the baffle plate can prevent the retaining frame from falling down and sliding out of the connection with the guide cylinder.

[0009] Preferably, a rotatable rotating rod is installed on the side surface of the lower mold, and safety frames are fixedly provided at both ends of the rotating rod, and the safety frames are in contact with the upper surface of the lower mold.

[0010] By adopting the above technical solution, the safety frame can prevent the upper mold from accidentally falling and injuring workers.

[0011] Preferably, a spring is connected between the support plate and the lower mold, the upper end of the guide column is a conical design that is small at the top and large at the bottom, a through groove is opened on the outer surface of the support plate directly above the push switch, and a spring is connected between the sliding plate and the support plate.

[0012] By adopting the above technical solution, the sliding plate will not be driven to slide further after the contact block contacts the push switch, thereby causing damage to the push switch.

[0013] Preferably, the mounting cylinder and the guide cylinder are concentrically arranged, and the lower end of the guide cylinder is designed to be hollow and open.

[0014] By adopting the above technical solution, the guide tube can slide down and be plugged into the guide column through one end of the hollow opening.

[0015] Preferably, the inner surface of the retaining frame fits with the outer surface of the upper end of the guide cylinder, and the outer surface of the retaining frame fits with the inner surface of the mounting cylinder.

[0016] By adopting the above technical solution, the retaining frame can prevent the guide cylinder from sliding laterally when it is pressed.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the metal stamping forming die:

[0018] 1. By contacting the tapered upper end of the guide column with the lower end of the guide cylinder during the clamping process of the upper and lower molds, when the upper and lower molds deviate, the guide cylinder is pressed and contacts the contact switch, triggering the contact switch to light up the warning light to remind the staff that there is a position deviation between the upper and lower molds, and the deviation direction of the guide cylinder is marked by the position of the lit warning light relative to the guide cylinder;

[0019] 2. Furthermore, the guide cylinder is limited by the retainer, so that the lateral displacement of the guide cylinder can be prevented during the process of the upper and lower molds being offset and clamped, thereby avoiding damage to the cavity caused by the dislocated upper and lower molds;

[0020] 3. Furthermore, the safety frame provides preventive support for the gap between the upper die and the lower die when the worker enters between the upper die and the lower die, and can protect the worker even if the hydraulic system fails and causes the upper die to fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the upper mold and the mold core connected to the utility model;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model in the overall mold closing state;

[0024] Figure 4 This is a three-dimensional structural diagram of the cross-section surface of the installation cylinder and the guide cylinder of the utility model;

[0025] Figure 5 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0026] Figure 6 For this utility model Figure 3 Enlarged structural diagram at B in the middle.

[0027] In the figure: 1. upper mold; 2. mold core; 3. lower mold; 4. support plate; 5. guide column; 6. push switch; 7. sliding plate; 8. contact block; 9. mounting cylinder; 10. guide cylinder; 11. contact switch; 12. warning light; 13. retaining frame; 14. baffle; 15. rotating rod; 16. safety frame. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-6 The utility model provides a technical solution: a metal stamping forming mold, including an upper mold 1, a mold core 2 is embedded on the lower surface of the upper mold 1, and a lower mold 3 is arranged below the upper mold 1, and anti-deflection mechanisms are arranged on the upper surfaces of both ends of the lower mold 3. When the upper mold 1 and the lower mold 3 deviate, an emergency stop signal is issued through the anti-deflection mechanism.

[0030] The anti-bias mechanism includes a support plate 4, which is slidably mounted on the outer surfaces of both ends of the lower mold 3, and a guide column 5 is fixedly arranged on the upper surface of the support plate 4, and a press switch 6 is fixedly installed on the outer surfaces of both ends of the lower mold 3, a sliding plate 7 is installed on the upper surface of the support plate 4, and a contact block 8 is fixedly arranged on the lower surface of the sliding plate 7, a spring is connected between the support plate 4 and the lower mold 3, the upper end of the guide column 5 is a conical design with a small upper part and a large lower part, a through groove is opened on the outer surface of the support plate 4 just above the press switch 6, and the sliding plate A spring is connected between 7 and the support plate 4. During the mold closing process, when the upper mold 1 drives the mold core 2 to deviate from the lower mold 3 during the sliding process, the guide column 5 is squeezed and drives the support plate 4 to slide down. During the process, the sliding plate 7 slides up and down under the pull of the spring between the support plate 4 and squeezes the press switch 6 through the contact block 8. The press switch 6 sends an emergency stop signal to the hydraulic system to stop the upper mold 1 from sliding down. The sliding connection between the sliding plate 7 and the support plate 4 prevents the contact block 8 from excessively squeezing the press switch 6 and damaging the press switch 6.

[0031] The lower surfaces of both ends of the upper mold 1 are fixedly provided with mounting cylinders 9, and the lower ends of the mounting cylinders 9 are connected with guide cylinders 10 through springs, the inner surfaces of the mounting cylinders 9 are fixedly provided with contact switches 11, and the outer surfaces of the mounting cylinders 9 are fixedly provided with warning lights 12, a retaining frame 13 is provided inside the mounting cylinders 9, and a baffle 14 is fixedly provided on the outer surfaces of the guide cylinders 10, the mounting cylinders 9 and the guide cylinders 10 are concentrically provided, and the lower ends of the guide cylinders 10 are hollow opening designs, the inner surfaces of the retaining frames 13 are fitted with the outer surfaces of the upper ends of the guide cylinders 10, and the outer surfaces of the retaining frames 13 are in contact with the outer surfaces of the upper ends of the guide cylinders 10, and the outer surfaces of the retaining frames 13 are in contact with the outer surfaces of the upper ends of the guide cylinders 10. The inner surface of the mounting tube 9 fits together, and when the retaining frame 13 slides out of the mounting tube 9 and falls on the baffle 14, when the inner wall of the lower end of the guide tube 10 contacts the conical inclined surface of the upper end of the guide column 5, the guide tube 10 slides in the offset direction to compress the spring between the guide tube 10 and the mounting tube 9 until the guide tube 10 contacts the contact switch 11 on one side and lights the warning light 12 to remind the staff of the offset direction. When the retaining frame 13 slides up and keeps in contact with the inner surface of the mounting tube 9, the guide tube 10 will not deviate when it is under pressure to ensure that the upper mold 1 and the lower mold 3 cannot be completely molded, thereby avoiding damage to the cavity.

[0032] A rotating rod 15 is installed on the side surface of the lower mold 3, and safety frames 16 are fixedly provided at both ends of the rotating rod 15, and the safety frames 16 are in contact with the upper surface of the lower mold 3. When the staff needs to enter between the upper mold 1 and the lower mold 3 to place and remove the metal sheet, the rotating rod 15 is rotated to move the safety frame 16 between the upper mold 1 and the lower mold 3. Even if the hydraulic system fails and causes the upper mold 1 to fall, the safety frame 16 can support the upper mold 1 to reduce the possibility of injury to the staff.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal stamping die, comprising an upper die (1), a die core (2) being embedded in the lower surface of the upper die (1), and a lower die (3) being arranged below the upper die (1), characterized in that: Anti-deflection mechanisms are provided on the upper surfaces of both ends of the lower die (3), and an emergency stop signal is issued through the anti-deflection mechanisms when the upper die (1) and the lower die (3) deviate.

2. A metal stamping die according to claim 1, characterized in that: The anti-deflection mechanism comprises a support plate (4), the support plate (4) being slidably mounted on the outer surfaces of both ends of the lower mold (3), and a guide column (5) being fixedly mounted on the upper surface of the support plate (4), a push switch (6) being fixedly mounted on the outer surfaces of both ends of the lower mold (3), a sliding plate (7) being mounted on the upper surface of the support plate (4), and a contact block (8) being fixedly mounted on the lower surface of the sliding plate (7).

3. A metal stamping die according to claim 1, characterized in that: A mounting cylinder (9) is fixedly provided on the lower surfaces of both ends of the upper mold (1), and the lower end of the mounting cylinder (9) is connected to a guide cylinder (10) via a spring, a contact switch (11) is fixedly provided on the inner surface of the mounting cylinder (9), and a warning light (12) is fixedly provided on the outer surface of the mounting cylinder (9), a retaining frame (13) is provided inside the mounting cylinder (9), and a baffle (14) is fixedly provided on the outer surface of the guide cylinder (10).

4. A metal stamping die according to claim 1, characterized in that: A rotatable rotating rod (15) is installed on the side surface of the lower mold (3), and safety frames (16) are fixedly arranged at both ends of the rotating rod (15), and the safety frames (16) are in contact with the upper surface of the lower mold (3).

5. The metal stamping die according to claim 2, characterized in that: A spring is connected between the support plate (4) and the lower mold (3); the upper end of the guide column (5) is of a conical design with a small upper portion and a large lower portion; a through groove is provided on the outer surface of the support plate (4) directly above the push switch (6); and a spring is connected between the sliding plate (7) and the support plate (4).

6. A metal stamping die according to claim 3, characterized in that: The mounting cylinder (9) and the guide cylinder (10) are concentrically arranged, and the lower end of the guide cylinder (10) is designed to be hollow and open.

7. The metal stamping die according to claim 3, characterized in that: The inner surface of the retaining frame (13) fits with the outer surface of the upper end of the guide tube (10), and the outer surface of the retaining frame (13) fits with the inner surface of the mounting tube (9).

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