A stamping die for hardware accessories

Abstract

This utility model provides a stamping die for hardware accessories, including a stamping mechanism, a fixed-angle changing mechanism, a drive mechanism, and a controller. The stamping mechanism includes a support frame, with a cylinder fixed to the top of the support frame. One end of the cylinder passes through the support frame and is fixed to a first movable plate. A buffer spring is fixed to the bottom of the first movable plate, and a second movable plate is fixed to the bottom of the buffer spring. An upper die is fixed to the bottom of the second movable plate. The fixed-angle changing mechanism includes a mounting table, with the controller fixed to the surface of the mounting table. A rotating shaft is rotatably connected to the surface of the mounting table, and a mounting plate is fixed to the top of the rotating shaft. Five hydraulic dampers are fixed to the top of the mounting plate. This utility model achieves continuous stamping through a five-station rotary table, significantly improving production efficiency. Simultaneously, the closed-loop control of infrared sensors and electromagnetic locking ensures alignment accuracy and avoids errors caused by manual intervention.

Description

Technical Field

[0001] This utility model belongs to the field of hardware processing technology, specifically relating to a stamping die for hardware accessories. Background Technology

[0002] Hardware refers to traditional hardware products. With social development, the demand for hardware parts is increasing day by day. During the production and processing of hardware products, stamping is required. Stamping operations require the use of stamping machines, also known as punch presses. Stamping production is mainly for the processing of sheet metal. Through dies, sheet metal is blanked, punched, formed, drawn, trimmed, fine blanked, and shaped. It is widely used in various fields. During operation, the parts to be stamped are placed between the upper and lower dies. The press and dies apply external force to the hardware sheet metal, causing it to undergo plastic deformation or separation, thereby obtaining objects of the required size and shape.

[0003] Utility model patent CN220239822U discloses a stamping die for hardware accessories, including a base box, an L-shaped fixed plate, a movable block, a buffer plate, an upper die base, and a lower die base. An L-shaped fixed plate is welded to one end of the top of the base box. A movable groove is formed at the center of the top of the L-shaped fixed plate. Limiting grooves are formed at the center of both sides of the movable groove on the L-shaped fixed plate. Limiting blocks are slidably connected to the L-shaped fixed plate within the limiting grooves. Movable blocks, whose size matches the movable groove, are fixedly installed between the limiting blocks by bolts. By operating a rotating disc, a screw on a bearing seat rotates stably. During rotation, the screw moves the movable block through the movable groove, limiting groove, and limiting block, allowing the movable block to move back and forth within the movable groove. Adjusting the upper die base under the movable block to different positions on the lower die base enables switching stamping operations, improving efficiency. The operation is simple and convenient, the structure is stable and robust, and the practical performance is strong.

[0004] However, the above-mentioned existing technical solutions still have the following shortcomings: the device switching efficiency is low, it relies on the screw to manually adjust the moving block, which takes a long time and has poor positioning accuracy, and it is easy for the upper and lower molds to be misaligned. At the same time, the device only has two lower mold bases, which cannot meet the needs of multiple continuous production. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a stamping die for hardware parts to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A stamping die for hardware accessories includes a stamping mechanism, a fixed angle changing mechanism, a drive mechanism, and a controller;

[0008] The stamping mechanism includes a support frame, a cylinder is fixed to the top of the support frame, one end of the cylinder passes through the support frame and is fixed to a first movable plate, a buffer spring is fixed to the bottom of the first movable plate, a second movable plate is fixed to the bottom of the buffer spring, and an upper mold is fixed to the bottom of the second movable plate.

[0009] The fixed angle replacement mechanism includes an installation table, the controller is fixed to the surface of the installation table, the surface of the installation table is rotatably connected to a rotating shaft, the top of the rotating shaft is fixed to an installation plate, the top of the installation plate is fixed to five hydraulic dampers, the top of the hydraulic dampers is fixed to a lower mold, and the upper mold is located directly above the leftmost lower mold.

[0010] In a preferred embodiment, the drive mechanism includes a mounting frame, which is fixed to the bottom of the mounting table. A geared motor is fixed to the bottom of the mounting frame, and the output shaft of the geared motor passes through the mounting frame and is fixed with an active dial.

[0011] In a preferred embodiment, the active dial is fixed with a toggle lever, the bottom end of the rotating shaft is rotatably connected to the surface of the mounting bracket, and a rotating disk is fixed to the surface of the rotating shaft.

[0012] In a preferred embodiment, the rotating disk surface is provided with five arc-shaped grooves, the arc-shaped groove on the left side is slidably connected to the surface of the active dial, and the rotating disk surface is provided with five actuation grooves.

[0013] As a preferred embodiment, an infrared sensor is fixed to the top of the support frame, with the detection end of the infrared sensor facing downwards, and a reflective marker block is provided on one side of the hydraulic damper.

[0014] In a preferred embodiment, the total number of reflective marker blocks is five, and the reflective marker blocks are fixed to the top of the mounting plate, with the leftmost reflective marker block located directly below the infrared sensor.

[0015] In a preferred embodiment, five positioning blocks corresponding to the lower mold positions are fixed at the bottom of the mounting plate, and an electromagnet is fixed on the top left side of the mounting table, with the electromagnet corresponding to the position of the leftmost positioning block.

[0016] In a preferred embodiment, a circular slide rail is fixed to the top of the mounting table, and a slider is slidably connected to the surface of the circular slide rail. The top of the slider is fixedly connected to the bottom of the mounting plate.

[0017] In a preferred embodiment, a plurality of heat dissipation fins are fixed on the surface of the upper mold, and a fan is fixed on one side of the surface of the heat dissipation fins.

[0018] In a preferred embodiment, a guide rod is fixed to the top of the second movable plate, and the surface of the guide rod slides through the first movable plate and the support frame.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This invention achieves continuous stamping through a five-station rotary table, significantly improving production efficiency; closed-loop control of infrared sensors and electromagnetic locking ensures alignment accuracy and avoids errors caused by human intervention; multi-stage buffering design of buffer springs and hydraulic dampers reduces impact damage and extends mold life; heat dissipation system and guide rod structure ensure stability during long-term operation; and it is suitable for the mass production needs of hardware accessories. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the fixed angle changing mechanism in this utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the fixed angle changing mechanism in this utility model;

[0024] Figure 4 This is a partial structural schematic diagram of the stamping mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the drive mechanism in this utility model.

[0026] The diagram shows: 1. Stamping mechanism; 101. Support frame; 102. Cylinder; 103. First movable plate; 104. Buffer spring; 105. Second movable plate; 106. Upper mold; 107. Heat dissipation fins; 108. Fan; 109. Guide rod; 110. Infrared sensor; 2. Fixed angle changing mechanism; 201. Mounting table; 202. Rotating shaft; 203. Mounting plate; 204. Hydraulic damper; 205. Lower mold; 206. Electromagnet; 207. Positioning block; 208. Circular slide rail; 209. Slider; 210. Reflective marking block; 3. Drive mechanism; 301. Mounting frame; 302. Gear motor; 303. Active dial; 304. Actuating rod; 305. Rotary disk; 306. Actuating groove; 307. Arc groove; 4. Controller. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1 to 5 As shown, this utility model embodiment provides a stamping die for hardware accessories, specifically including a stamping mechanism 1, a fixed angle changing mechanism 2, a drive mechanism 3, and a controller 4. The stamping mechanism 1 specifically includes a support frame 101, with a cylinder 102 fixed to the top of the support frame 101. One end of the cylinder 102 passes through the support frame 101 and is fixed to a first movable plate 103. A buffer spring 104 is fixed to the bottom of the first movable plate 103, and a second movable plate 105 is fixed to the bottom of the buffer spring 104. An upper die 106 is fixed to the bottom of the second movable plate 105. The fixed angle changing mechanism 2 specifically includes a mounting table 201. The controller 4 is fixed to the surface of the mounting table 201. A rotating shaft 202 is rotatably connected to the surface of the mounting table 201. A mounting plate 203 is fixed to the top of the rotating shaft 202. Five hydraulic dampers 204 are fixed to the top of the mounting plate 203. A lower die 205 is fixed to the top of each hydraulic damper 204. The upper die 106 is located directly above the leftmost lower die 205.

[0029] Specifically, in this embodiment, cylinder 102 drives the first movable plate 103 to move vertically. The first movable plate 103 is connected to the second movable plate 105 through a buffer spring 104. The second movable plate 105 drives the upper mold 106 to press down. The buffer spring 104 absorbs the impact force during the stamping process, reducing the risk of rigid collision of the mold. At the same time, it realizes the flexible transmission of stamping force through elastic deformation. The hydraulic damper 204 is compressed during stamping to buffer vibration. Meanwhile, the mounting plate 203 can rotate around the rotating shaft 202 to switch work positions. The five-station design meets the needs of continuous production. The hydraulic damper 204 absorbs stamping vibration, reduces noise and improves mold positioning accuracy. The layout of multiple lower molds 205 significantly reduces downtime for mold changing and improves overall efficiency. The drive mechanism 3 can achieve high-precision indexing rotation and avoid manual adjustment errors.

[0030] Please see Figures 1 to 5 As shown, the drive mechanism 3 specifically includes a mounting frame 301, which is fixed to the bottom of the mounting table 201. A geared motor 302 is fixed to the bottom of the mounting frame 301. The output shaft of the geared motor 302 passes through the mounting frame 301 and is fixed to an active dial 303. A toggle lever 304 is fixed to the surface of the active dial 303. The bottom end of the rotating shaft 202 is rotatably connected to the surface of the mounting frame 301. A rotating disk 305 is fixed to the surface of the rotating shaft 202. Five arc-shaped grooves 307 are formed on the surface of the rotating disk 305. The left arc-shaped groove 307 is slidably connected to the surface of the active dial 303. Five toggle grooves 306 are formed on the surface of the rotating disk 305. In this embodiment, the geared motor 302 drives the active dial 303 to rotate. The toggle lever 304 is sequentially inserted into the toggle grooves 306 of the rotating disk 305, causing the rotating disk 305 to rotate in increments. Each rotation switches a workstation. The arc-shaped grooves 307 limit the range of motion of the active dial 303 to ensure that the indexing angle is fixed.

[0031] Please see Figures 1 to 5 As shown, an infrared sensor 110 is fixed to the top of the support frame 101, with the detection end of the infrared sensor 110 facing downwards. Five reflective marker blocks 210 are provided on one side of the hydraulic damper 204. These reflective marker blocks 210 are fixed to the top of the mounting plate 203, with the leftmost reflective marker block 210 located directly below the infrared sensor 110. In this embodiment, the infrared sensor 110 emits a beam of light to the reflective marker block 210. When the marker block enters the detection area, the reflected signal is received, and the controller 4 locks the rotating disk 305 after determining that the workstation is aligned. Five positioning blocks 207 corresponding to the positions of the lower mold 205 are fixed to the bottom of the mounting plate 203. An electromagnet 206 is fixed to the top left side of the mounting table 201, with the electromagnet 206 corresponding to the position of the leftmost positioning block 207. When the mounting plate 203 rotates to the target workstation, and the controller 4 determines that the workstation is aligned, the controller 4 operates the electromagnet 206 to energize and attract the positioning blocks 207, fixing the position of the mounting plate 203 and ensuring stability during the stamping process.

[0032] Please see Figures 1 to 5 As shown, a circular slide rail 208 is fixed to the top of the mounting table 201, and a slider 209 is slidably connected to the surface of the circular slide rail 208. The top of the slider 209 is fixedly connected to the bottom of the mounting plate 203. The slider 209 at the bottom of the mounting plate 203 slides along the circular slide rail 208, restricting the mounting plate 203 to rotate only around the pivot 202. The circular slide rail 208 provides rigid guidance to prevent the mounting plate 203 from radially shifting. Multiple heat dissipation fins 107 are fixed to the surface of the upper mold 106, and a fan 108 is fixed to the surface of one side of the heat dissipation fin 107. During the stamping process, the fan 108 accelerates the airflow, and the heat dissipation fins 107 absorb the heat from the upper mold 106, accelerating the heat dissipation from the surface of the upper mold 106 and preventing high-temperature deformation caused by continuous stamping of the upper mold 106. A guide rod 109 is fixed to the top of the second movable plate 105, and the guide rod 109 slides through the surface of the first movable plate 103 and the support frame 101. The guide rod 109 eliminates lateral offset and ensures the alignment of the upper mold 106 and the lower mold 205; it also restricts the second movable plate 105 to move only in the vertical direction, making the compression stroke of the buffer spring 104 more linear and the punching force transmission more uniform.

[0033] The specific working principle of this utility model is as follows: After the equipment is started, the controller 4 first detects the leftmost reflective marker block 210 through the infrared sensor 110 to confirm the initial station alignment. Under alignment, the electromagnet 206 attracts the positioning block 207 and locks the mounting plate 203. The cylinder 102 drives the first movable plate 103 to press down, and the buffer spring 104 drives the upper mold 106 to contact the lower mold 205 through the second movable plate 105 to complete the stamping action. After the stamping is completed, the cylinder 102 retracts, the controller 4 starts the reduction motor 302 and stops the electromagnet 206, and the toggle rod 304 of the active dial 303 is embedded in the toggle groove 306 of the rotating disk 305, pushing the mounting plate 203 to rotate 72° and switch to the next station. When the target station reaches the stamping position, the infrared sensor 110 detects the reflective marker block 210 again, and the controller 4 triggers the electromagnet 206 to attract the positioning block 207 and lock the mounting plate 203, realizing continuous production cycle.

[0034] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hardware stamping die characterized by: It includes a stamping mechanism (1), a fixed angle changing mechanism (2), a drive mechanism (3), and a controller (4); The stamping mechanism (1) includes a support frame (101), a cylinder (102) is fixed on the top of the support frame (101), one end of the cylinder (102) passes through the support frame (101) and is fixed with a first movable plate (103), a buffer spring (104) is fixed at the bottom of the first movable plate (103), a second movable plate (105) is fixed at the bottom of the buffer spring (104), and an upper mold (106) is fixed at the bottom of the second movable plate (105). The fixed angle replacement mechanism (2) includes an installation table (201), the controller (4) is fixed to the surface of the installation table (201), the surface of the installation table (201) is rotatably connected to a rotating shaft (202), the top of the rotating shaft (202) is fixed to an installation plate (203), the top of the installation plate (203) is fixed to five hydraulic dampers (204), the top of the hydraulic dampers (204) is fixed to a lower mold (205), and the upper mold (106) is located directly above the leftmost lower mold (205).

2. The hardware stamping die of claim 1, wherein: The drive mechanism (3) includes a mounting frame (301), which is fixed to the bottom of the mounting table (201). A geared motor (302) is fixed to the bottom of the mounting frame (301). The output shaft of the geared motor (302) passes through the mounting frame (301) and is fixed with an active dial (303). A toggle lever (304) is fixed to the surface of the active dial (303).

3. A hardware stamping die according to claim 2, wherein: The bottom end of the rotating shaft (202) is rotatably connected to the surface of the mounting bracket (301), and a rotating disk (305) is fixed on the surface of the rotating shaft (202).

4. The hardware stamping die of claim 3, wherein: The rotating disk (305) has five arc-shaped grooves (307) on its surface. The arc-shaped groove (307) on the left side is slidably connected to the surface of the active dial (303). The rotating disk (305) has five actuation grooves (306) on its surface.

5. The hardware fitting press die according to claim 1, characterized in that: An infrared sensor (110) is fixed on the top of the support frame (101). The infrared sensor (110) is designed with its detection end facing downwards. A reflective marker block (210) is provided on one side of the hydraulic damper (204).

6. A hardware stamping die according to claim 5, wherein: There are a total of five reflective marker blocks (210). The reflective marker blocks (210) are fixed to the top of the mounting plate (203), and the leftmost reflective marker block (210) is located directly below the infrared sensor (110).

7. The hardware stamping die of claim 1, wherein: The bottom of the mounting plate (203) is fixed with five positioning blocks (207) corresponding to the position of the lower mold (205). An electromagnet (206) is fixed on the top left side of the mounting table (201). The electromagnet (206) corresponds to the position of the leftmost positioning block (207).

8. A stamping die for hardware accessories according to claim 1, characterized in that: The top of the mounting table (201) is fixed with a circular slide rail (208), and a slider (209) is slidably connected to the surface of the circular slide rail (208). The top of the slider (209) is fixedly connected to the bottom of the mounting plate (203).

9. A stamping die for hardware accessories according to claim 1, characterized in that: The upper mold (106) has multiple heat dissipation fins (107) fixed on its surface, and a fan (108) is fixed on the surface of one side of the heat dissipation fins (107).

10. A stamping die for hardware accessories according to claim 1, characterized in that: The second movable plate (105) has a guide rod (109) fixed on its top, and the guide rod (109) slides through the first movable plate (103) and the support frame (101).

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