High-precision punching die for hardware

Abstract

The utility model belongs to the technical field of hardware machining, and particularly relates to a hardware high-precision punching die which comprises an upper die and a lower die, a hydraulic cylinder is arranged on the end face of the upper die, a connecting rod is arranged between the upper die and the lower die, the output end of the hydraulic cylinder penetrates through the upper die and is connected with a force application block, and the two ends of the force application block are arranged on the peripheral wall of the connecting rod in a sleeved mode. A stamping block is connected to the lower end face of the force application block and detachably connected with the force application block, two positioning pin rods are arranged on the end face of the stamping block, a stamping head is arranged between the two positioning pin rods, a containing groove corresponding to the stamping block is formed in the end face of the lower die, a mounting groove is formed in the containing groove, a soot blowing assembly is arranged in the mounting groove, and positioning assemblies are arranged on the two inner walls of the containing groove. A button used for controlling the positioning assembly is arranged in the positioning hole, and a soft magnetic sheet used for adsorbing metal chippings is arranged below the positioning assembly. Compared with the prior art, the metal scrap collecting device achieves the purpose of cleaning and collecting metal scraps generated in the punching process.

Description

Technical Field

[0001] This utility model relates to the field of hardware processing technology, and more specifically, it relates to a high-precision punching die for hardware. Background Technology

[0002] Hardware refers to tools made from metals such as gold, silver, copper, iron, and tin through processing and casting, used for fixing, processing, and decoration. Hardware accessories refer to machine parts or components made of hardware, as well as some small hardware products. They can be used independently or as auxiliary tools. Examples include hardware tools, hardware components, daily-use hardware, building hardware, and security products. Most small hardware products are not final consumer goods but rather supporting products, semi-finished products, and tools used in industrial manufacturing. Only a small portion of daily-use hardware products are essential consumer tools for people's daily lives.

[0003] For example, the punching die for drilling metal parts disclosed in patent announcement number CN214814083U, by setting a support column, a first spring, and a slider, can fix the metal parts being punched and prevent the metal parts from springing up after punching, thus improving the practicality of the device. By setting a slip ring and a second storage plate, the device can avoid the connecting block from shifting during long-term punching, and avoid dimensional inaccuracies during punching, thereby improving the service life of the device. By setting a pressing pad at the lower end of the support column, the support column can prevent damage to the metal parts, and by setting an electromagnet on the storage plate, the device can be more firmly fixed, preventing punching failure due to inaccurate placement of the metal parts, further improving the practicality of the device.

[0004] While the above methods improve the stability of fixing the hardware, they also generate a lot of metal shavings during the stamping process. These shavings can not only be blown by the wind onto the operators, affecting their health, but also affect the stamping precision and product quality. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high-precision punching die for hardware parts that can clean up metal debris generated during punching.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-precision punching die for hardware parts includes an upper die and a lower die. A hydraulic cylinder is provided on the end face of the upper die, and a connecting rod is provided between the upper die and the lower die. The output end of the hydraulic cylinder passes through the upper die, and a force-applying block is connected to the output end of the hydraulic cylinder. The two ends of the force-applying block are sleeved on the outer peripheral wall of the connecting rod.

[0008] A stamping block is connected to the lower end face of the force-applying block. The stamping block is detachably connected to the force-applying block. Two positioning pins are provided on the end face of the stamping block, and a stamping head is provided between the two positioning pins.

[0009] The lower die end face has a placement groove corresponding to the stamping block, the placement groove has an installation groove, and the installation groove has a blower assembly.

[0010] The soot blowing assembly has positioning holes at both ends corresponding to the positioning pins, and positioning components are provided on the inner walls of the placement groove. A button for controlling the positioning components is provided in the positioning hole, and a soft magnetic sheet for adsorbing metal debris is provided below the positioning components.

[0011] The present invention is further configured such that: the positioning component includes an electric push rod and a fixed plate connected to the output end of the electric push rod; a through groove for installing the electric push rod is provided on the inner wall of the placement groove; a sliding groove for the positioning pin rod to pass through is provided on the end face of the fixed plate; and a soft magnetic sheet is placed on the lower end face of the fixed plate.

[0012] The present invention is further configured such that: the inner wall of the placement groove is provided with a receiving box, the receiving box is placed below the groove hole, the inner wall of the receiving box is provided with a scraper, the end of the scraper is provided with an electromagnet, and the electromagnet is communicatively connected to the electric push rod.

[0013] The present invention is further configured such that: the soot blowing assembly includes a drive motor and a fan blade connected to the output end of the drive motor, and a controller electrically connected to the drive motor is provided on the lower mold end face.

[0014] The present invention is further configured such that a bracket for supporting the workpiece is provided above the mounting groove.

[0015] Compared with the shortcomings of the prior art, the beneficial effects of this utility model are as follows:

[0016] By adding a dust blowing component, metal debris generated during punching can be blown up. Furthermore, the lower end face of the fixed plate has a soft magnetic sheet. The blown metal debris falls onto the soft magnetic sheet and is attracted by it. Further still, when the electric push rod resets, it moves the fixed plate. The fixed plate passes over a scraper, which scrapes off the metal debris from the soft magnetic sheet. The metal debris is then attracted by an electromagnet. When the electric push rod has finished resetting, the electromagnet is de-energized, and the metal debris falls into the receiving box, thus achieving the purpose of cleaning and collecting the metal debris generated during the punching process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the fixing plate structure according to an embodiment of the present utility model;

[0019] Figure 3 This is a cross-sectional view of the receiving box according to an embodiment of the present utility model.

[0020] Upper mold 1, lower mold 2, hydraulic cylinder 3, connecting rod 4, force application block 5, stamping block 6, positioning pin 7, stamping head 8, placement groove 9, mounting groove 10, positioning hole 11, button 12, soft magnetic sheet 13, electric push rod 14, fixing plate 15, slide groove 16, receiving box 17, scraper 18, electromagnet 19, drive motor 20, fan blade 21. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] like Figures 1 to 3 As shown,

[0024] A high-precision punching die for hardware parts includes an upper die 1 and a lower die 2. A hydraulic cylinder 3 is provided on the end face of the upper die 1. A connecting rod 4 is provided between the upper die 1 and the lower die 2. The output end of the hydraulic cylinder 3 passes through the upper die 1 and is connected to a force-applying block 5. The two ends of the force-applying block 5 are sleeved on the outer peripheral wall of the connecting rod 4. When the hydraulic cylinder 3 presses the force-applying block 5, the force-applying block 5 moves downward and the connecting rod 4 plays a guiding role.

[0025] The lower end face of the force-applying block 5 is connected to a stamping block 6. The stamping block 6 is detachably connected to the force-applying block 5. The end face of the stamping block 6 is provided with two positioning pins 7. A stamping head 8 is provided between the two positioning pins 7. During the downward movement of the force-applying block 5, the stamping head 8 extrudes the workpiece and performs drilling.

[0026] The lower die 2 has a placement groove 9 on the end face corresponding to the stamping block 6. The placement groove 9 has an installation groove 10. A bracket for supporting the workpiece is provided above the installation groove 10. A dust blowing assembly is provided in the installation groove 10. The dust blowing assembly includes a drive motor 20 and a fan blade 21 connected to the output end of the drive motor 20. A controller electrically connected to the drive motor 20 is provided on the end face of the lower die 2. The metal chips generated by drilling fall through the bracket and are blown up by the dust blowing assembly.

[0027] The blowing assembly has positioning holes 11 at both ends corresponding to the positioning pins 7. The two inner walls of the placement groove 9 are provided with positioning components. The positioning holes 11 are provided with buttons 12 for controlling the positioning components. The positioning components are provided with soft magnetic sheets 13 for adsorbing metal debris below them. The blown metal debris is adsorbed by the soft magnetic sheets 13.

[0028] The positioning assembly includes an electric push rod 14 and a fixed plate 15 connected to the output end of the electric push rod 14. The inner wall of the placement groove 9 is provided with a through groove for installing the electric push rod 14. The end face of the fixed plate 15 is provided with a sliding groove 16 for the positioning pin 7 to pass through. The soft magnetic sheet 13 is placed on the lower end face of the fixed plate 15.

[0029] The inner wall of the placement slot 9 is provided with a receiving box 17, which is located below the slot hole. The inner wall of the receiving box 17 is provided with a scraper 18, and the end of the scraper 18 is provided with an electromagnet 19. The electromagnet 19 is connected to the electric push rod 14. When the electric push rod 14 is fully reset, the electromagnet 19 is de-energized.

[0030] Working principle: When in use, first replace the appropriate stamping block 6 according to the work requirements, then place the workpiece on the bracket, and then start the hydraulic cylinder 3 to press down the stamping block 6. During the pressing process, the positioning pin 7 extends into the positioning hole 11, which serves to ensure accurate positioning. On the other hand, the positioning pin 7 can press down the button 12 in the positioning hole 11, start the electric push rod 14, and then output the electric push rod 14 to fix the workpiece through the fixing plate 15.

[0031] The punch head 8 punches the workpiece, and then the fan blade 21 blows up the metal shavings generated during punching. Since the lower end face of the fixed plate 15 has a soft magnetic sheet 13, the blown metal shavings fall onto the soft magnetic sheet 13 and are attracted by it. After processing is completed, when the electric push rod 14 resets, it drives the fixed plate 15 to move. The fixed plate 15 passes by the scraper 18, which scrapes off the metal shavings on the soft magnetic sheet 13. The metal shavings are attracted by the electromagnet 19. When the electric push rod 14 resets, the electromagnet 19 is de-energized, and the metal shavings fall into the receiving box 17, thus achieving the purpose of cleaning and collecting the metal shavings generated during the punching process.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-precision punching die for hardware parts, comprising an upper die (1) and a lower die (2), wherein a hydraulic cylinder (3) is provided on the end face of the upper die (1), and a connecting rod (4) is provided between the upper die (1) and the lower die (2), characterized in that: The output end of the hydraulic cylinder (3) passes through the upper mold (1), and the output end of the hydraulic cylinder (3) is connected to a force-applying block (5). The two ends of the force-applying block (5) are sleeved on the outer peripheral wall of the connecting rod (4). The lower end face of the force-applying block (5) is connected to a stamping block (6). The stamping block (6) and the force-applying block (5) are detachably connected. The end face of the stamping block (6) is provided with two positioning pins (7), and a stamping head (8) is provided between the two positioning pins (7). The lower die (2) has a placement groove (9) on the end face corresponding to the stamping block (6), and a mounting groove (10) is provided in the placement groove (9). A blower assembly is provided in the mounting groove (10). The ash blowing assembly has positioning holes (11) at both ends corresponding to the positioning pins (7). The two inner walls of the placement groove (9) are provided with positioning components. The positioning holes (11) are provided with buttons (12) for controlling the positioning components. The positioning components are provided with soft magnetic sheets (13) for adsorbing metal debris below them.

2. The high-precision punching die for hardware parts according to claim 1, characterized in that: The positioning assembly includes an electric push rod (14) and a fixed plate (15) connected to the output end of the electric push rod (14). The inner wall of the placement groove (9) is provided with a through groove for installing the electric push rod (14). The end face of the fixed plate (15) is provided with a sliding groove (16) for the positioning pin (7) to pass through. The soft magnetic sheet (13) is placed on the lower end face of the fixed plate (15).

3. The high-precision punching die for hardware parts according to claim 2, characterized in that: The inner wall of the placement slot (9) is provided with a receiving box (17), which is located below the slot hole. The inner wall of the receiving box (17) is provided with a scraper (18), and the end of the scraper (18) is provided with an electromagnet (19). The electromagnet (19) is connected to the electric push rod (14).

4. The high-precision punching die for hardware parts according to claim 3, characterized in that: The soot blowing assembly includes a drive motor (20) and a fan blade (21) connected to the output end of the drive motor (20). The lower mold (2) end face is provided with a controller electrically connected to the drive motor (20).

5. A high-precision punching die for hardware parts according to claim 4, characterized in that: The mounting slot (10) is provided with a bracket for supporting the workpiece.

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