Stamping die for protective door lock hole plate

By designing the support frame and mold components, the lock hole plate of the protective door was precisely positioned and centered, solving the problem of misalignment in the stamping position, improving processing accuracy and production efficiency, and ensuring the quality and safety of the protective door.

CN224322205UActive Publication Date: 2026-06-05太仓市华茂金属制品有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
太仓市华茂金属制品有限公司
Filing Date
2025-06-10
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

In existing technologies, misalignment of the stamping position of the lock hole plate of the protective door leads to unstable stamping quality, affecting processing accuracy and production efficiency, and increasing production costs and safety risks.

Method used

By employing components such as a support frame, cylinder, upper mold, lower mold, guide sleeve, guide column, two-way lead screw, and motor, the door lock plate is precisely positioned and centered. Combined with the design of rollers and scrap bins, the stamping quality and production efficiency are improved.

Benefits of technology

This ensures the shape and dimensional accuracy of the keyhole plate, improves the assembly accuracy and overall protective effect of the security door, reduces waste cleaning steps, and enhances the cleanliness of the production environment and production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224322205U_ABST
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Abstract

The utility model discloses a kind of stamping die for protective door lock hole plate, belong to stamping field, including support frame, the inner chamber top of support frame is fixedly installed with pneumatic cylinder, the output shaft of pneumatic cylinder is fixedly connected with upper die, the bottom of upper die is fixedly connected with several guide sleeves, the below of upper die is provided with lower die, the below of lower die is provided with base, the top of base is fixedly connected with several guide columns, the top of base is provided with structure groove, the above of structure groove is provided with shell, the inner chamber of shell is provided with two-way screw rod and round bar;By the cooperation between above each device, the position of door lock plate is aligned in the middle when stamping, since the shape and dimensional accuracy of protective door lock hole plate is higher, accurate positioning mode ensures the shape and size of lock hole, improves the machining precision of lock hole plate, improves the assembly accuracy of protective door, and guarantees the overall protection effect of protective door.
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Description

Technical Field

[0001] This utility model relates to the field of stamping technology, specifically a stamping die for a protective door lock hole plate. Background Technology

[0002] Door lock hole plate stamping is a metal processing technology mainly used to create holes of specific shapes and sizes or other complex shapes on door lock hole plates. In this process, stamping dies are usually used. The metal sheet (such as a door lock hole plate) is placed between the upper and lower dies under strong pressure. The stamping head is used to perform a fast and precise stamping operation on the sheet, thereby forming the required holes or shapes on the sheet.

[0003] If the stamping position of the door lock plate is not aligned and centered during stamping, it will lead to incorrect stamping position and affect the stamping quality. Because the shape and size accuracy requirements of the lock hole plate of the protective door are high, deviations in the stamping position will cause the shape and size of the lock hole to not meet the design requirements. This will not only reduce the processing accuracy of the lock hole plate, but also affect the assembly accuracy and sealing performance of the protective door, thus affecting the overall protective effect of the protective door. Due to the lack of an effective positioning and alignment device, the position of the lock hole plate needs to be manually adjusted before each stamping. This not only increases the complexity of operation, but also reduces production efficiency. At the same time, the instability of the stamping position leads to inconsistent quality of the stamped lock hole plates, increasing production costs and posing potential risks to the overall quality and safety of the protective door.

[0004] Therefore, this utility model provides a stamping die for a protective door lock hole plate to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This utility model provides a stamping die for a lock hole plate of a protective door, which aims to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a stamping die for a protective door lock hole plate, comprising a support frame, a cylinder fixedly installed at the top of the inner cavity of the support frame, an upper die fixedly connected to the output shaft of the cylinder, several guide sleeves fixedly connected to the bottom of the upper die, a lower die arranged below the upper die, a base arranged below the lower die, several guide columns fixedly connected to the top of the base, a structural groove opened at the top of the base, a shell arranged above the structural groove, a bidirectional lead screw and a round rod arranged in the inner cavity of the shell, two rings threaded onto the outer ring of the bidirectional lead screw, a fixing frame fixedly connected to the top of the outer surface of the rings, a roller arranged in the inner cavity of the fixing frame, a through groove opened at the bottom of the upper die, and a stamping head fixedly connected to the center position of the bottom of the upper die.

[0009] As a preferred technical solution of this application, one side of the lower mold is fixedly connected to one side of the adjacent base by a number of bolts, and the outer ring of the guide column is fitted with a shock-absorbing spring.

[0010] As a preferred technical solution of this application, the top end of the guide post is slidably connected to the inner cavity of the corresponding guide sleeve, and two support rods are fixedly connected to the bottom of the outer shell, with the bottom of the support rods fixedly connected to the bottom of the inner cavity of the structural groove.

[0011] As a preferred technical solution of this application, one end of the bidirectional lead screw is rotatably connected to the inner wall of the adjacent housing via a rotating shaft, and the other end of the bidirectional lead screw extends through the inner wall of the adjacent housing to one side of the housing.

[0012] As a preferred technical solution of this application, a motor is fixedly installed on one side of the housing, and the output shaft of the motor is fixedly connected to the extension end of the bidirectional lead screw.

[0013] As a preferred technical solution of this application, the two ends of the round rod pass through one side of the corresponding circular ring and are fixedly connected to the inner wall of the adjacent outer shell, and the two circular rings are arranged symmetrically.

[0014] As a preferred technical solution of this application, the inner cavity of the fixing frame is provided with a U-shaped frame, and both ends of the roller are rotatably connected to the inner wall of the adjacent U-shaped frame through a rotating shaft.

[0015] As a preferred technical solution of this application, a threaded rod is fixedly connected to the top of the U-shaped frame, and a handle is fixedly connected to the top of the corresponding fixed frame through the threaded rod. Two limiting rods are provided above the fixed frame, and one end of the limiting rod passes through the top of the corresponding fixed frame and is fixedly connected to the top of the corresponding U-shaped frame.

[0016] As a preferred technical solution of this application, two abutment blocks are fixedly connected to the top of the base, and magnetic strips are fixedly connected to the inner cavity of the abutment blocks. A waste bin is provided on the top of the base, and two magnetic blocks are fixedly connected to one side of the waste bin.

[0017] As a preferred technical solution of this application, the magnetic block and the corresponding magnetic strip are magnetically attracted to each other, and an anti-slip handle is fixedly connected to one side of the waste bin.

[0018] (III) Beneficial Effects

[0019] By using a motor and a two-way lead screw, the two fixed brackets are brought closer together, which allows the door lock plate to be precisely positioned and centered on the lower mold. This ensures that the door lock plate is aligned and centered during stamping. Since the shape and size of the lock hole plate of the protective door have high precision requirements, the precise positioning method ensures the shape and size of the lock hole, improves the processing accuracy of the lock hole plate, enhances the assembly accuracy of the protective door, and guarantees the overall protective effect of the protective door.

[0020] The roller design allows the door lock plate to move smoothly on the mold, reducing stamping errors caused by improper stamping position adjustments and further improving the stability of stamping quality. It also allows the door lock plate to easily move forward after stamping for the next stamping operation, enhancing the continuity and smoothness of the stamping process and reducing time wasted on frequent adjustments to the door lock plate position, thus further improving production efficiency. The inclusion of a scrap bin, magnetic blocks, and abutments enables unified collection of scrap materials, reducing tedious waste cleaning steps and improving the cleanliness of the production environment. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a stamping die for a protective door lock hole plate;

[0022] Figure 2 This is a schematic diagram of the upper die in a stamping die for a protective door lock hole plate.

[0023] Figure 3 A schematic diagram of the structure of a roller in a stamping die for a protective door lock hole plate;

[0024] Figure 4 A schematic diagram of the waste bin in a stamping die for a protective door lock hole plate;

[0025] Figure 5 For a type of stamping die for a door lock hole plate Figure 4 Enlarged view of point A.

[0026] In the picture:

[0027] 1. Support frame; 2. Upper mold; 3. Base; 4. Guide sleeve; 5. Guide column; 6. Lower mold; 7. Cylinder; 8. Through slot; 9. Punch head; 10. Shock-absorbing spring; 11. Support rod; 12. Housing; 13. Scrap box; 14. Two-way lead screw; 15. Round rod; 16. Fixing frame; 17. U-shaped frame; 18. Threaded rod; 19. Limiting rod; 20. Roller; 21. Motor; 22. Structural groove; 23. Anti-slip grip; 24. Abutment block; 25. Magnetic strip; 26. Magnetic block; 27. Ring. Detailed Implementation

[0028] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] This utility model provides a stamping die for a protective door lock hole plate, such as Figures 1-5 As shown, the technical solution includes a support frame 1, a cylinder 7 is fixedly installed on the top of the inner cavity of the support frame 1, the output shaft of the cylinder 7 is fixedly connected to an upper mold 2, several guide sleeves 4 are fixedly connected to the bottom of the upper mold 2, a lower mold 6 is provided below the upper mold 2, a base 3 is provided below the lower mold 6, several guide columns 5 are fixedly connected to the top of the base 3, a structural groove 22 is provided on the top of the base 3, a housing 12 is provided above the structural groove 22, a bidirectional lead screw 14 and a round rod 15 are provided in the inner cavity of the housing 12, two rings 27 are threaded on the outer ring of the bidirectional lead screw 14, a fixing frame 16 is fixedly connected to the top of the outer surface of the rings 27, a roller 20 is provided in the inner cavity of the fixing frame 16, a through groove 8 is provided at the bottom of the upper mold 2, and a punch head 9 is fixedly connected to the center of the bottom of the upper mold 2.

[0030] One side of the lower mold 6 is fixedly connected to one side of the adjacent base 3 by several bolts. The outer ring of the guide column 5 is fitted with a shock-absorbing spring 10. The shock-absorbing spring 10 can effectively absorb and buffer the impact force generated by the stamping when the stamping head 9 stamps the door lock plate, reduce the vibration of the equipment, thereby extending the service life of the equipment, while also ensuring the stamping accuracy and avoiding stamping position deviation caused by vibration.

[0031] The top of the guide post 5 is slidably connected to the inner cavity of the corresponding guide sleeve 4. Two support rods 11 are fixedly connected to the bottom of the outer shell 12. The bottom of the support rods 11 is fixedly connected to the bottom of the inner cavity of the structural groove 22. The sliding connection of the guide post 5 in the inner cavity of the guide sleeve 4 ensures that the upper mold 2 can move up and down along a precise path during the stamping process, which improves the stamping accuracy. The support rods 11 provide stable support for the outer shell 12.

[0032] One end of the bidirectional lead screw 14 is rotatably connected to the inner wall of the adjacent housing 12 via a rotating shaft, and the other end of the bidirectional lead screw 14 extends through the inner wall of the adjacent housing 12 to one side of the housing 12. This connection method of the bidirectional lead screw 14 enables it to rotate smoothly under the drive of the motor 21, ensuring stable power transmission, thereby realizing the precise movement and positioning of the two fixed frames 16.

[0033] A motor 21 is fixedly installed on one side of the housing 12. The output shaft of the motor 21 is fixedly connected to the extension end of the bidirectional lead screw 14. The fixed installation position of the motor 21 ensures stable operation, and the direct connection between the output shaft and the bidirectional lead screw 14 makes the power transmission more efficient and stable.

[0034] The two ends of the round rod 15 pass through one side of the corresponding ring 27 and are fixedly connected to the inner wall of the adjacent outer shell 12. The two rings 27 are symmetrically arranged. The fixed connection of the round rod 15 provides stable support and limit for the rings 27. This symmetrical arrangement allows the bidirectional lead screw 14 to drive the two rings 27 to move smoothly closer or further away from each other when rotating, thereby ensuring that the two fixed frames 16 can move synchronously and evenly.

[0035] The inner cavity of the fixed frame 16 is provided with a U-shaped frame 17. Both ends of the roller 20 are rotatably connected to the inner wall of the adjacent U-shaped frame 17 through a rotating shaft. The U-shaped frame 17 provides a stable installation base for the roller 20. The rotatable connection of the roller 20 allows the door lock plate to move more smoothly with the assistance of the roller 20 during the stamping process, reducing friction and the risk of damage to the surface of the door lock plate. It also facilitates the quick adjustment of the position of the door lock plate after stamping, improving stamping efficiency and continuity.

[0036] A threaded rod 18 is fixedly connected to the top of the U-shaped frame 17. The top of the threaded rod 18 passes through the top of the inner cavity of the corresponding fixed frame 16 and is fixedly connected to a handle. Two limiting rods 19 are provided above the fixed frame 16. One end of the limiting rod 19 passes through the top of the corresponding fixed frame 16 and is fixedly connected to the top of the corresponding U-shaped frame 17. The threaded connection between the threaded rod 18 and the fixed frame 16 allows the height of the U-shaped frame 17 to be adjusted by rotating the handle, thereby adapting to door lock plates of different thicknesses within a certain range.

[0037] Two abutments 24 are fixedly connected to the top of the base 3. Magnetic strips 25 are fixedly connected to the inner cavity of the abutments 24. A waste bin 13 is installed on the top of the base 3. Two magnetic blocks 26 are fixedly connected to one side of the waste bin 13. The magnetic attraction between the magnetic strips 25 inside the abutments 24 and the magnetic blocks 26 on the waste bin 13 allows the waste bin 13 to be firmly fixed to the base 3. This magnetic fixing method facilitates the quick installation and removal of the waste bin 13, ensures the stability of waste collection, and improves the cleanliness of the production environment and the efficiency of waste disposal.

[0038] The magnetic block 26 and the corresponding magnetic strip 25 are magnetically attracted to each other. A non-slip handle 23 is fixedly connected to one side of the waste bin 13. The non-slip handle 23 provides convenience for the operator, making it easier to pull the waste bin 13 when cleaning waste and reducing the difficulty of operation.

[0039] Specifically: First, the operator places the door lock plate on the lower mold 6. Then, the motor 21 is started. The motor 21 begins to run and drives the bidirectional lead screw 14 to rotate. Under the constraint of the round rod 15, the rotation of the bidirectional lead screw 14 causes the two rings 27 to move closer together, further causing the two fixing brackets 16 to move closer together. This ensures that the fixing brackets 16 are tightly attached to both sides of the door lock plate, and the door lock plate is precisely positioned and centered on the lower mold 6. This ensures the accuracy of the door lock plate's position during the stamping process. By rotating the threaded rod 18, the U-shaped bracket 17 moves along the threaded rod 18... The door lock plate moves in a certain direction, causing the roller 20 to come into contact with the door lock plate. The cylinder 7 starts and drives the upper mold 2 to move downward. At this time, the guide column 5 slides in the inner cavity of the guide sleeve 4 to ensure that the movement of the upper mold 2 is smooth and accurate. The stamping head 9 performs a stamping operation on the door lock plate. The waste generated during the stamping process will fall into the waste bin 13. After the stamping is completed, the personnel pull the anti-slip handle 23 to move the waste bin 13, so that the magnetic block 26 and the magnetic strip 25 on the abutment block 24 are demagnetized, thus making it convenient for personnel to collect and process the waste inside the waste bin 13.

[0040] 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 stamping die for a security door lock hole plate, comprising a support frame (1), characterized in that: A cylinder (7) is fixedly installed at the top of the inner cavity of the support frame (1). The output shaft of the cylinder (7) is fixedly connected to the upper mold (2). Several guide sleeves (4) are fixedly connected to the bottom of the upper mold (2). A lower mold (6) is provided below the upper mold (2). A base (3) is provided below the lower mold (6). Several guide columns (5) are fixedly connected to the top of the base (3). A structural groove (22) is provided on the top of the base (3). The upper mold (2) is provided with a housing (12) on top. The inner cavity of the housing (12) is provided with a two-way lead screw (14) and a round rod (15). The outer ring of the two-way lead screw (14) is threaded with two rings (27). A fixing frame (16) is fixedly connected to the top of the outer surface of the rings (27). A roller (20) is provided in the inner cavity of the fixing frame (16). A through groove (8) is opened at the bottom of the upper mold (2). A punch head (9) is fixedly connected to the center of the bottom of the upper mold (2).

2. The stamping die for a security door lock hole plate according to claim 1, characterized in that: One side of the lower mold (6) is fixedly connected to one side of the adjacent base (3) by several bolts, and the outer ring of the guide column (5) is fitted with a shock-absorbing spring (10).

3. The stamping die for a security door lock hole plate according to claim 1, characterized in that: The top of the guide post (5) is slidably connected to the inner cavity of the corresponding guide sleeve (4), and two support rods (11) are fixedly connected to the bottom of the outer shell (12). The bottom of the support rods (11) is fixedly connected to the bottom of the inner cavity of the structural groove (22).

4. The stamping die for a security door lock hole plate according to claim 1, characterized in that: One end of the bidirectional lead screw (14) is rotatably connected to the inner wall of the adjacent housing (12) via a rotating shaft, and the other end of the bidirectional lead screw (14) extends through the inner wall of the adjacent housing (12) to one side of the housing (12).

5. A stamping die for a security door lock hole plate according to claim 4, characterized in that: A motor (21) is fixedly installed on one side of the housing (12), and the output shaft of the motor (21) is fixedly connected to the extension end of the bidirectional lead screw (14).

6. The stamping die for a security door lock hole plate according to claim 1, characterized in that: The two ends of the rod (15) pass through one side of the corresponding ring (27) and are fixedly connected to the inner wall of the adjacent outer shell (12). The two rings (27) are arranged symmetrically.

7. The stamping die for a security door lock hole plate according to claim 1, characterized in that: The inner cavity of the fixed frame (16) is provided with a U-shaped frame (17), and both ends of the roller (20) are rotatably connected to the inner wall of the adjacent U-shaped frame (17) through a rotating shaft.

8. A stamping die for a security door lock hole plate according to claim 7, characterized in that: A threaded rod (18) is fixedly connected to the top of the U-shaped frame (17). The top of the threaded rod (18) is fixedly connected to a handle by threading through the top of the inner cavity of the corresponding fixed frame (16). Two limiting rods (19) are provided above the fixed frame (16). One end of the limiting rod (19) passes through the top of the corresponding fixed frame (16) and is fixedly connected to the top of the corresponding U-shaped frame (17).

9. A stamping die for a security door lock hole plate according to claim 1, characterized in that: The top of the base (3) is fixedly connected to two abutments (24), and the inner cavity of the abutments (24) is fixedly connected to a magnetic strip (25). The top of the base (3) is provided with a waste bin (13), and two magnetic blocks (26) are fixedly connected to one side of the waste bin (13).

10. A stamping die for a security door lock hole plate according to claim 9, characterized in that: The magnetic block (26) and the corresponding magnetic strip (25) are magnetically attracted to each other, and a non-slip handle (23) is fixedly connected to one side of the waste bin (13).