Stamping die limiting protection mechanism

Abstract

The utility model discloses a stamping die limiting protection mechanism, relates to the technical field of stamping die limiting protection, and aims to solve the technical problem that a current stamping die limiting protection mechanism easily affects taking and placing of stamping parts, the stamping die limiting protection mechanism comprises a lower seat and an upper seat, a lower die is arranged at the top of the lower seat, and an upper die is arranged at the bottom of the upper seat. The lower die and the upper die are symmetrically arranged, first notches are symmetrically formed in the two sides of the top of the lower base, and rotating shafts are rotationally arranged in the first notches. Through the designed first notch, the rotating shaft and the guide structure, the limiting protection rod piece is rotationally installed under the cooperation of the first notch and the rotating shaft, and the limiting protection rod piece can be rotated to the vertical state and the horizontal state under the cooperation of the guide structure, so that when a stamping part is taken and placed, the stamping part is prevented from being damaged. The limiting protection rod piece can be rotated to be in a horizontal state, at the moment, the limiting protection rod piece cannot shield the periphery of the lower die, and a person can conveniently take and place the stamping part.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping die limit protection, and more specifically, to a stamping die limit protection mechanism. Background Technique

[0002] A stamping die is a special process equipment that processes materials (metals or non-metals) into parts (or semi-finished products) during cold stamping processing, called a cold stamping die. When using a stamping die, in order to limit and protect the stamping die, a limit protection mechanism needs to be set up. The limit protection mechanism mainly consists of limit protection rods installed at the four corners of the lower die and matching rods at the four corners of the upper die. When the upper and lower dies are closed, the matching rods will be docked with the limit protection rods in advance, and then as the upper die continues to descend, the spring assembly in the limit protection rods will be compressed, thereby buffering the impact force of the upper and lower dies closing, that is, achieving the limit protection effect on the die.

[0003] The limit protection rods in the existing stamping die limit protection mechanism are usually distributed near the four corners of the die, and since their height is usually higher than that of the lower die, when taking and placing the stamping parts, the limit protection rods are very likely to touch and block the stamping parts, which is not convenient for personnel to take and place the stamping parts. If the stamping part is relatively large, even the stamping part cannot be smoothly placed on the lower die. In order to normally process the stamping part, it is necessary to cancel the limit protection of the die and then temporarily remove the limit protection rods, and the operation is relatively cumbersome. In view of this, we propose a stamping die limit protection mechanism. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a stamping die limit protection mechanism to solve the technical problem that the current stamping die limit protection mechanism is likely to affect the taking and placing of stamping parts.

[0005] To solve the above technical problems, the utility model provides the following technical solution: A stamping die limit protection mechanism includes a lower seat and an upper seat. The lower die is arranged on the top of the lower seat, and the upper die is arranged on the bottom of the upper seat. The lower die and the upper die are symmetrically arranged. Two first slots are symmetrically opened on both sides of the top of the lower seat. A rotating shaft is rotatably arranged inside the first slots, and two groups of limit protection rods are arranged on the rotating shaft, and the limit protection rods are located inside the first slots. The four groups of limit protection rods are symmetrically distributed at the four corners of the lower die. A guiding structure is symmetrically arranged on the rear side of the lower seat and the rotating shaft. Matching rods are symmetrically arranged at the four corners of the upper die at the bottom of the upper seat, and the matching rods and the limit protection rods are symmetrically arranged;

[0006] Second slots are opened on both sides of the top of the lower seat, and the second slots are communicated with the two groups of corresponding first slots. A two-way positioning structure is arranged inside the second slots.

[0007] The utility model realizes the rotational installation of the limit protection rod through the designed first notch, rotating shaft and guiding structure. With the cooperation of the first notch and the rotating shaft, the limit protection rod can be rotated and installed. And with the cooperation of the guiding structure, the limit protection rod can be rotated to the vertical state and the horizontal state. Therefore, when taking and placing the stamping part, the limit protection rod can be rotated to the horizontal state, and at this time, the limit protection rod will not block the periphery of the lower die, which is convenient for personnel to take and place the stamping part. When stamping the stamping part, the limit protection rod can be rotated to the vertical state again to limit and protect the die clamping of the upper die and the lower die. And if the stamping part is relatively large as a whole, the personnel can directly keep the limit protection rod horizontally placed. Therefore, even for extremely large stamping parts, they can be quickly taken and placed without temporarily disassembling the limit protection rod. The utility model also designs a two-way positioning structure, which is used to cooperate with the limit protection rod. When the limit protection rod rotates to the vertical state to limit and protect the die, the two-way driving structure in the two-way positioning structure can drive two positioning plates to move away from each other at the same time, and then the positioning notch of the positioning plate is inserted into the limit protection rod to realize the positioning of the limit protection rod. So as to ensure the stability of the limit protection rod in the vertical state while the limit protection rod can rotate, so that the limit protection rod can stably cooperate with the matching rod to limit and protect the die.

[0008] Preferably, the limit protection rod includes a cylindrical seat, the cylindrical seat is rotatably arranged in the first notch, a cylindrical rod is arranged on the top of the cylindrical seat, a spring is sleeved on the cylindrical rod, and a sleeve is arranged on the top of the spring and sleeved on the cylindrical rod.

[0009] Preferably, the guiding structure includes an electro-hydraulic push rod and a disc. The disc is arranged at the rear end of the rotating shaft. The piston end of the electro-hydraulic push rod is rotatably connected to the lower rear side of the disc, and the cylinder end of the electro-hydraulic push rod is rotatably connected to the rear side of the lower seat, and the disc is obliquely arranged.

[0010] Preferably, the two-way positioning structure includes two positioning plates and a two-way driving structure. The two positioning plates are slidably arranged inside the second notch, and the two positioning plates are symmetrically arranged. The opposite sides of the two positioning plates are provided with positioning notches symmetrical to the limit protection rod, and the two-way driving structure is arranged at the center inside the second notch.

[0011] Preferably, the two-way driving structure includes a motor and a matching driving plate. The motor is arranged at the center of the inner bottom of the second notch. The output end of the motor is provided with a gear disc through a rotating shaft. The matching driving plates are symmetrically arranged on both sides of the gear disc, and the matching driving plate is connected to the corresponding positioning plate.

[0012] Preferably, a limiting groove is formed on one side of the matching driving plate facing the gear disc, and the gear disc is located in the limiting groove. The inner wall of the limiting groove is provided with matching teeth, and the matching teeth are engaged with the gear disc. The top width of the matching driving plate is one-half of the width of the second slot.

[0013] Preferably, two groups of T-shaped bars are symmetrically arranged at the bottom of the positioning plate, and T-shaped grooves symmetric to the T-shaped bars are formed at the bottom of the second slot. A third slot symmetric to the motor is formed in the center of the bottom of the second slot. A docking slot corresponding to the positioning plate is formed on one side of the first slot facing away from the second slot.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Through the designed first slot, rotating shaft and guiding structure, the present utility model realizes the rotational installation of the limiting and protecting rod under the cooperation of the first slot and the rotating shaft, and under the cooperation of the guiding structure, the limiting and protecting rod can be rotated to the vertical state and the horizontal state. Therefore, when taking and placing the stamping part, the limiting and protecting rod can be rotated to the horizontal state, and at this time, the limiting and protecting rod will not block the periphery of the lower die, facilitating the personnel to take and place the stamping part. When stamping the stamping part, the limiting and protecting rod can be rotated to the vertical state again to limit and protect the die closing of the upper die and the lower die. And if the stamping part is relatively large as a whole, the personnel can directly keep the limiting and protecting rod horizontally placed. Therefore, stamping parts with extremely large sizes can also be quickly taken and placed without temporarily disassembling the limiting and protecting rod, solving the technical problem that the current limiting and protecting mechanism of the stamping die is prone to affecting the taking and placing of the stamping part. Therefore, the present utility model has the advantage of facilitating the personnel to take and place the stamping part.

[0016] 2. The present utility model also designs a two-way positioning structure, which is used to cooperate with the limiting and protecting rod. When the limiting and protecting rod rotates to the vertical state to limit and protect the die, the two-way driving structure in the two-way positioning structure can drive the two groups of positioning plates to displace away from each other at the same time, and then the positioning slot of the positioning plate is inserted into the limiting and protecting rod to realize the positioning of the limiting and protecting rod, so as to ensure the stability of the limiting and protecting rod in the vertical state while enabling the limiting and protecting rod to rotate, so that the limiting and protecting rod can stably cooperate with the matching rod to limit and protect the die. Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the first structural schematic diagram of the lower seat of the present utility model;

[0019] Figure 3Schematic cross-sectional structure diagram of the lower seat of the present utility model;

[0020] Figure 4 Second structural schematic diagram of the lower seat of the present utility model;

[0021] Figure 5 Schematic structure diagram of the two-way positioning structure of the present utility model;

[0022] Figure 6 Schematic structure diagram of the positioning plate and the matching driving plate of the present utility model.

[0023] Explanation of the reference numerals in the figure:

[0024] 1. Lower seat; 101. First notch; 102. Rotating shaft; 103. Second notch; 104. Third notch; 105. T-shaped groove; 106. Docking groove; 2. Upper seat; 3. Lower die; 4. Upper die; 5. Limit protection rod; 501. Cylindrical seat; 502. Cylindrical rod; 503. Spring; 504. Sleeve; 6. Matching rod; 7. Guiding structure; 701. Electric hydraulic push rod; 702. Disc; 8. Two-way positioning structure; 9. Positioning plate; 901. Positioning notch; 902. T-shaped strip; 10. Two-way driving structure; 1001. Motor; 1002. Gear disc; 1003. Matching driving plate; 1004. Limit groove; 1005. Matching tooth. Specific implementation mode

[0025] As Figures 1 to 6As shown in the figure, a limit protection mechanism for a stamping die according to the present utility model includes a lower seat 1 and an upper seat 2. A lower die 3 is arranged at the top of the lower seat 1, and the upper seat 2 is arranged at the output end of an external hydraulic cylinder. An upper die 4 is arranged at the bottom of the upper seat 2. The lower die 3 and the upper die 4 are symmetrically arranged. First notches 101 are symmetrically opened on both sides of the top of the lower seat 1. A rotating shaft 102 is rotatably arranged inside the first notches 101. Two groups of limit protection rods 5 are arranged on the rotating shaft 102, and the limit protection rods 5 are located inside the first notches 101. The four groups of limit protection rods 5 are symmetrically distributed at the four corners of the lower die 3. A guiding structure 7 is symmetrically arranged at the rear side of the lower seat 1 and the rotating shaft 102. Matching rods 6 are symmetrically arranged at the four corners of the bottom of the upper seat 2 and located above the upper die 4, and the matching rods 6 and the limit protection rods 5 are symmetrically arranged. When the die is closed for processing the stamping part, the rotating shaft 102 can be driven to rotate through the guiding structure 7, so that the limit protection rods 5 can be rotated to a vertical state and a horizontal state. Therefore, when taking and placing the stamping part, the limit protection rods 5 can be rotated to the horizontal state. At this time, the limit protection rods 5 will not block the periphery of the lower die 3, facilitating the personnel to take and place the stamping part. When stamping and processing the stamping part, the limit protection rods 5 can be rotated to the vertical state again. At this time, the upper seat 2 drives the upper die 4 to descend and close with the lower die 3 to stamp and process the stamping part. During this process, the four matching rods 6 on the upper seat 2 will be connected with the four limit protection rods 5 on the lower seat 1 in advance for limiting. And as the upper die 4 continues to descend, the limit protection rods 5 will be compressed at this time, so as to buffer the impact force generated by the die closing, that is, the limit protection effect on the die can be realized. When the stamping part is stamped and completed, the limit protection rods 5 can be rotated to the horizontal state again, facilitating the personnel to take the part. And if the stamping part is relatively large as a whole, the personnel can directly rotate the limit protection rods 5 to the horizontal position. Therefore, even extremely large stamping parts can be quickly taken and placed without temporarily disassembling the limit protection rods 5.

[0026] Specifically, the limit protection rod 5 includes a cylindrical seat 501. The cylindrical seat 501 is rotatably arranged inside the first notch 101. A cylindrical rod 502 is arranged at the top of the cylindrical seat 501. A spring 503 is sleeved on the cylindrical rod 502. A sleeve 504 is arranged at the top of the spring 503, and the sleeve 504 is sleeved on the cylindrical rod 502. The bottom end of the matching rod 6 is butted against the top opening of the sleeve 504 for limiting. And as the upper die 4 descends, the sleeve 504 will descend, and the spring 503 will be compressed, so as to buffer the impact force generated by the die closing.

[0027] Furthermore, the guiding structure 7 includes an electro-hydraulic push rod 701 and a disc 702. The disc 702 is arranged at the rear end of the rotating shaft 102. The piston end of the electro-hydraulic push rod 701 is rotatably connected to the lower rear side of the disc 702, and the cylinder end of the electro-hydraulic push rod 701 is rotatably connected to the rear side of the lower seat 1. Moreover, the disc 702 is arranged obliquely. Controlling the contraction of the electro-hydraulic push rod 701 will drive the disc 702 to rotate by 90 degrees, and then the disc 702 will drive the rotating shaft 102 to rotate by 90 degrees, which can drive the limiting and protecting rod 5 on the rotating shaft 102 to rotate by 90 degrees, thereby realizing the horizontal and vertical adjustment of the limiting and protecting rod 5.

[0028] In the embodiment of the present utility model, second notches 103 are formed on both sides of the top of the lower seat 1, and the second notches 103 communicate with two groups of first notches 101 on the corresponding sides. A two-way positioning structure 8 is arranged inside the second notches 103. When the limiting and protecting rod 5 rotates to the vertical state to limit and protect the mold, the two-way driving structure 10 in the two-way positioning structure 8 can simultaneously drive the two positioning plates 9 to move away from each other, and then the positioning notches 901 of the positioning plates 9 are inserted onto the limiting and protecting rod 5 to realize the vertical positioning of the limiting and protecting rod 5, so as to ensure the stability of the limiting and protecting rod 5 in the vertical state while the limiting and protecting rod 5 can rotate, so that the limiting and protecting rod 5 can stably cooperate with the matching rod 6 to limit and protect the mold.

[0029] Specifically, the two-way positioning structure 8 includes two positioning plates 9 and a two-way driving structure 10. The two positioning plates 9 are slidably arranged inside the second notches 103, and the two positioning plates 9 are symmetrically arranged. Positioning notches 901 symmetrical to the limiting and protecting rod 5 are formed on the opposite sides of the two positioning plates 9. The two-way driving structure 10 is arranged at the center inside the second notches 103. The two-way driving structure 10 can drive the two positioning plates 9 to move away from each other, so that the positioning notches 901 on the two positioning plates 9 can directly insert and fix the two limiting and protecting rods 5 in the vertical state.

[0030] Furthermore, the two-way driving structure 10 includes a motor 1001 and a matching driving plate 1003. The motor 1001 is arranged at the center of the inner bottom of the second notch 103. A gear disc 1002 is arranged at the output end of the motor 1001 through a rotating shaft. The matching driving plates 1003 are symmetrically arranged on both sides of the gear disc 1002. The matching driving plates 1003 are connected to the corresponding positioning plates 9. The motor 1001 drives the gear disc 1002 to rotate, and then the two matching driving plates 1003 on both sides of the gear disc 1002 move away from each other, thereby driving the two positioning plates 9 to move away from each other.

[0031] Furthermore, a limiting groove 1004 is formed on one side of the driving board 1003 facing the gear disk 1002, and the gear disk 1002 is located within the limiting groove 1004. The inner wall of the limiting groove 1004 is provided with engaging teeth 1005, and the engaging teeth 1005 mesh with the gear disk 1002. The top width of the cooperating driving board 1003 is one-half of the width of the second slot 103. The limiting groove 1004 can limit the gear disk 1002, ensuring the horizontal stability of the gear disk 1002 and the stable meshing and cooperation between the gear disk 1002 and the engaging teeth 1005, thereby driving the displacement of the two cooperating driving boards 1003. The cooperation of the tops of the two cooperating driving boards 1003 can shield and protect the top of the second slot 103.

[0032] It should be noted that two T-shaped bars 902 are symmetrically arranged at the bottom of the positioning plate 9, and T-shaped grooves 105 symmetric to the T-shaped bars 902 are formed at the inner bottom of the second slot 103. A third slot 104 symmetric to the motor 1001 is formed at the center of the inner bottom of the second slot 103. A docking slot 106 corresponding to the positioning plate 9 is formed on one side of the first slot 101 facing away from the second slot 103. The T-shaped bars 902 are located inside the T-shaped grooves 105, which can realize the sliding installation of the positioning plate 9 and ensure the stability of the positioning plate 9 inside the second slot 103. The third slot 104 facilitates the embedded installation of the motor 1001, and the docking slot 106 facilitates the insertion of the end of the positioning slot 901, which is used to ensure the stability of the positioning plate 9 inserted on the limiting and protecting rod 5.

[0033] Working principle: This embodiment provides a limiting and protecting mechanism for a stamping die. First, when the die is closed to process a stamping part, the guide structure 7 can drive the rotation shaft 102 to rotate, so that the limiting and protecting rod 5 can be rotated to a vertical state and a horizontal state. Therefore, when taking and placing the stamping part, the limiting and protecting rod 5 can be rotated to the horizontal state. At this time, the limiting and protecting rod 5 will not block the periphery of the lower die 3, facilitating the personnel to take and place the stamping part. When stamping the stamping part, the limiting and protecting rod 5 can be rotated to the vertical state again. At this time, the upper seat 2 drives the upper die 4 to descend and the lower die 3 to close to stamp the stamping part. During this process, the four sets of matching rods 6 on the upper seat 2 will be docked with the four sets of limiting and protecting rods 5 on the lower seat 1 in advance for limiting. And as the upper die 4 continues to descend, at this time, the limiting and protecting rod 5 will be compressed, thereby buffering the impact force generated by the die closing, that is, the limiting and protecting effect on the die can be achieved. When the stamping of the stamping part is completed, the limiting and protecting rod 5 can be rotated to the horizontal state again, facilitating the personnel to take the part. And if the stamping part is relatively large, the personnel can directly rotate the limiting and protecting rod 5 to a horizontal position. Therefore, extremely large stamping parts can also be quickly taken and placed without temporarily disassembling the limiting and protecting rod 5.

[0034] Secondly, when the limit protection rod 5 rotates to the vertical state to limit and protect the mold, the two sets of positioning plates 9 can be simultaneously driven to move away from each other by the two-way driving structure 10 in the two-way positioning structure 8. Then, the positioning notch 901 of the positioning plate 9 is inserted into the limit protection rod 5 to achieve vertical positioning of the limit protection rod 5. This facilitates the rotation of the limit protection rod 5 while ensuring the stability of the limit protection rod 5 in the vertical state, so that the limit protection rod 5 can stably cooperate with the matching rod 6 to limit and protect the mold.

[0035] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. A limiting and protecting mechanism for a stamping die, characterized in that, It includes a lower base (1) and an upper base (2). A lower die (3) is arranged at the top of the lower base (1), and an upper die (4) is arranged at the bottom of the upper base (2). The lower die (3) and the upper die (4) are symmetrically arranged. First notches (101) are symmetrically opened on both sides of the top of the lower base (1). A rotating shaft (102) is rotatably arranged inside the first notches (101). Two groups of limit protection rods (5) are arranged on the rotating shaft (102), and the limit protection rods (5) are located inside the first notches (101). The four groups of limit protection rods (5) are symmetrically distributed at the four corners of the lower die (3). A guiding structure (7) is symmetrically arranged with the rotating shaft (102) at the rear side of the lower base (1). Matching rods (6) are symmetrically arranged at the four corners of the upper die (4) at the bottom of the upper base (2), and the matching rods (6) are symmetrically arranged with the limit protection rods (5). Second notches (103) are opened on both sides of the top of the lower base (1), and the second notches (103) are communicated with two groups of first notches (101) on the corresponding side. A two-way positioning structure (8) is arranged inside the second notches (103).

2. The limit protection mechanism of a stamping die according to claim 1, characterized in that, The limit protection rod (5) includes a cylindrical seat (501). The cylindrical seat (501) is rotatably arranged inside the first notch (101). A cylindrical rod (502) is arranged at the top of the cylindrical seat (501). A spring (503) is sleeved on the cylindrical rod (502). A sleeve (504) is arranged at the top of the spring (503), and the sleeve (504) is sleeved on the cylindrical rod (502).

3. The limit protection mechanism of a stamping die according to claim 1, characterized in that, The guiding structure (7) includes an electro-hydraulic push rod (701) and a disc (702). The disc (702) is arranged at the rear end of the rotating shaft (102). The piston end of the electro-hydraulic push rod (701) is rotatably connected to the lower rear side of the disc (702). The cylinder end of the electro-hydraulic push rod (701) is rotatably connected to the rear side of the lower base (1), and the disc (702) is arranged obliquely.

4. A limiting and protecting mechanism for a stamping die according to claim 1, characterized in that, The two-way positioning structure (8) includes two groups of positioning plates (9) and a two-way driving structure (10). The two groups of positioning plates (9) are slidably arranged inside the second notch (103), and the two groups of positioning plates (9) are symmetrically arranged. Positioning notches (901) symmetric to the limit protection rods (5) are opened on the opposite sides of the two groups of positioning plates (9). The two-way driving structure (10) is arranged at the center inside the second notch (103).

5. The limit protection mechanism of a stamping die according to claim 4, characterized in that, The two-way driving structure (10) includes a motor (1001) and a matching driving plate (1003). The motor (1001) is arranged at the center of the inner bottom of the second notch (103). A gear disc (1002) is arranged at the output end of the motor (1001) through a rotating shaft. The matching driving plates (1003) are symmetrically arranged on both sides of the gear disc (1002), and the matching driving plates (1003) are connected to the corresponding positioning plates (9).

6. The limit protection mechanism of a stamping die according to claim 5, characterized in that, The mating drive plate (1003) is provided with a limiting groove (1004) on the side facing the gear disc (1002), and the gear disc (1002) is located within the limiting groove (1004). The inner wall of the limiting groove (1004) is provided with mating teeth (1005), and the mating teeth (1005) are engaged with the gear disc (1002). The top width of the mating drive plate (1003) is one-half of the width of the second notch (103).

7. The limit protection mechanism of a stamping die according to claim 5, characterized in that, Two sets of T-shaped bars (902) are symmetrically arranged at the bottom of the positioning plate (9), and T-shaped grooves (105) symmetric to the T-shaped bars (902) are opened at the inner bottom of the second notch (103). A third notch (104) symmetric to the motor (1001) is opened at the center of the inner bottom of the second notch (103). A docking groove (106) corresponding to the positioning plate (9) is opened on the side of the first notch (101) facing away from the second notch (103).

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