A hardware stamping die

Abstract

This utility model discloses a metal stamping die, belonging to the field of metal stamping technology. It aims to solve the problem that in existing traditional structures, vulnerable parts inside the die are prone to fatigue fracture, wear, or failure due to long-term exposure to alternating loads, friction, and impact. For example, when a punch needs replacement, because the die uses an integral closed structure and the punch is installed in the upper die plate, maintenance personnel must first disassemble the components at the upper end of the upper die plate, such as removing the connecting bolts between the upper die base and the worktable, and removing the guide column protective cover. This process often takes a lot of time, seriously impacting production downtime. The new die includes a lower die base, with a lower die plate installed on its upper side. A guide plate is provided inside the lower die plate, and a die cavity is installed at the upper end of the lower die plate. An upper die base is located above the lower die plate, and a pad is installed on the lower side of the upper die base.

Description

Technical Field

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

[0002] As a core piece of equipment for metal plastic processing, stamping dies for hardware parts are widely used in automobile manufacturing, electronics, aerospace and other fields. The rationality of their structure directly affects production efficiency, product precision and maintenance costs. To ensure structural stability, traditional stamping dies for hardware parts often adopt an integrated structural design with integral welding or bolt fastening. That is, the upper die base, lower die base and internal functional components, such as punches, dies, locating pins, and unloading devices, are fixed by welding or rigidly connected by dense bolts to form a closed integral structure. However, in the long-term use of this traditional structure, the vulnerable parts inside the mold are prone to fatigue fracture, wear, or failure due to long-term exposure to alternating loads, friction, and impact. For example, when the punch needs to be replaced, because the mold adopts an integral closed structure and the punch is installed in the upper platen, maintenance personnel must first disassemble the components at the upper end of the upper platen, such as removing the connecting bolts between the upper mold base and the worktable and removing the guide column protective cover. The whole process often takes a lot of time and seriously reduces production downtime.

[0003] Therefore, there is an urgent need for a hardware stamping die that can simplify the internal parts replacement process and shorten maintenance time. Utility Model Content

[0004] (1) Technical problems to be solved To address the shortcomings of existing technologies, the purpose of this utility model is to provide a metal stamping die that solves the problem that, in the long-term use of traditional die structures, vulnerable parts inside the die are prone to fatigue fracture, wear, or failure due to prolonged exposure to alternating loads, friction, and impact. For example, when a punch needs to be replaced, because the die uses an integral closed structure and the punch is installed in the upper template, maintenance personnel must first disassemble the components at the upper end of the upper template, such as removing the connecting bolts between the upper die base and the worktable, and removing the guide column protective cover. This entire process often takes a lot of time and seriously reduces production downtime.

[0005] (2) Technical solution To solve the above-mentioned technical problems, this utility model provides a metal stamping die, including a lower die base, a lower template mounted on the upper side of the lower die base, a guide plate disposed inside the lower template, a die cavity mounted on the upper end of the lower template, an upper die base disposed above the lower template, a pad mounted on the lower side of the upper die base, an upper template mounted on the lower side of the pad, a disassembly and assembly mechanism disposed inside the upper template, and the disassembly and assembly mechanism includes a punch for stamping metal parts installed inside the upper template, an mounting block disposed inside the upper template, a first round shaft connected inside the mounting block, a gear rotatably connected to the outer side of the first round shaft, a spring connected inside the mounting block, a lower gear fixedly connected to one end of the spring, an upper gear disposed above the outer end of the gear, and an auxiliary unit disposed inside the upper template.

[0006] Furthermore, the auxiliary unit includes a second circular shaft connected inside the upper template, and a cylindrical rod is connected to the outer end of the second circular shaft.

[0007] Furthermore, the upper template has mounting grooves around its perimeter, and the two outer ends of the punch abut against the innermost end of the mounting groove and the side of the mounting block closest to the innermost end of the mounting groove.

[0008] Furthermore, a groove is provided below the end of the mounting block away from the punch, and the upper and lower ends of the first round shaft are fixedly connected to the upper and lower ends of the groove, while the upper and lower sides of the gear are slidably connected to the upper and lower ends of the groove.

[0009] Furthermore, a rectangular groove perpendicular to the groove is formed inside the mounting block below the end of the groove near the punch. A sliding groove parallel to the groove is formed inside the mounting block above the end of the groove near the punch, with the opening of the sliding groove being the end away from the lower toothed rod. The ends of the rectangular groove and the sliding groove inside the mounting block, away from the punch, are connected to the groove. The end of the spring away from the lower toothed rod is fixedly connected to the innermost end of the rectangular groove. The outer side of the lower toothed rod is slidably connected to the inner side of the rectangular groove. The outer side of the upper toothed rod is slidably connected to the inner side of the sliding groove. The lower toothed rod and the upper toothed rod mesh with the gear. A slot is formed inside the upper template at the sliding groove inside the mounting groove near the mounting block. The outer side of the upper toothed rod away from the lower toothed rod is inserted into the inner side of the slot.

[0010] Furthermore, the upper template has vertical grooves symmetrically opened at the upper and lower ends of the mounting groove on both sides, and the upper and lower ends of the second round shaft are fixedly connected to the middle position of the upper and lower ends of the vertical groove. The cylindrical rod has a through-hole inside, and the outer side of the second round shaft is rotatably connected to the inner side of the through-hole.

[0011] Furthermore, the outer end of the cylindrical rod away from the vertical groove is rolledly connected to the outer side of the punch and the mounting block.

[0012] (3) Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: This invention, through the provision of a disassembly and assembly mechanism, allows for the replacement of a punch due to wear and tear from prolonged use. First, the lower gear is pulled outward from the mounting block, stretching the spring and simultaneously rotating the gear, causing the upper gear to slide into the groove. Once the upper gear is fully inserted into the groove, the mounting block is no longer fixed to the mounting slot. The punch and mounting block can then be removed from the mounting slot. Thus, this disassembly and assembly mechanism eliminates the need to remove components from the upper part of the punch during punch assembly and disassembly, thereby reducing the time spent on punch replacement and shortening the downtime of the stamping die.

[0013] This invention, by setting an auxiliary unit, ensures that when the punch and mounting block are slid into the mounting groove, the outer sides of the punch and mounting block continuously contact the outer end of the cylindrical rod, causing the cylindrical rod to rotate at the outer end of the second circular shaft. This prevents the punch and mounting block from contacting the inner side of the mounting groove when they move to it. The rolling of the cylindrical rod on the outer side of the punch and mounting block makes the assembly and disassembly of the punch and mounting block in the mounting groove faster and smoother, while also preventing wear on the outer side of the punch and mounting block and the inner side of the mounting groove. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the structure at the lower end of the upper template of this utility model; Figure 3 This is a schematic diagram of the internal structure of the upper template of this utility model; Figure 4 This is a schematic diagram of the mounting groove structure of this utility model; Figure 5 This is a schematic diagram of the groove structure of this utility model; Figure 6 This is a schematic diagram of the rectangular groove structure of this utility model; Figure 7 for Figure 4 Enlarged view of point A.

[0016] The markings in the attached diagram are as follows: 1. Lower die base; 2. Lower template; 3. Guide plate; 4. Die; 5. Upper die base; 6. Backing plate; 7. Upper template; 801. Punch; 802. Mounting block; 803. First round shaft; 804. Gear; 805. Spring; 806. Lower gear; 807. Upper gear; 901. Second round shaft; 902. Cylindrical rod. Detailed Implementation

[0017] 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.

[0018] This specific embodiment is a metal stamping die, and its structural schematic diagram is as follows: Figures 1 to 6 As shown, the assembly includes a lower die base 1, a lower template 2 mounted on the upper side of the lower die base 1, a guide plate 3 inside the lower template 2, a die cavity 4 mounted on the upper end of the lower template 2, an upper die base 5 above the lower template 2, a pad 6 mounted on the lower side of the upper die base 5, an upper template 7 mounted on the lower side of the pad 6, and a disassembly and assembly mechanism inside the upper template 7. This mechanism includes a punch 801 installed inside the upper template 7 for stamping metal parts, an mounting block 802 installed inside the upper template 7, and mounting grooves formed around the upper template 7. The two outer ends of the punch 801 abut against the innermost end of the mounting groove and the side of the mounting block 802 closest to the innermost end of the mounting groove. Thus, by first sliding the punch 801 to the innermost end of the corresponding mounting groove, and then sliding the mounting block 802 into the mounting groove and fixing it, the punch 801 can be fixed into the corresponding mounting groove.

[0019] The mounting block 802 is internally connected to a first circular shaft 803. A groove is formed below the end of the mounting block 802 furthest from the punch 801. The upper and lower ends of the first circular shaft 803 are fixedly connected to the upper and lower ends of the groove. The upper and lower sides of the gear 804 are slidably connected to the upper and lower ends of the groove. The gear 804 is rotatably connected to the outer side of the first circular shaft 803. A spring 805 is internally connected to the mounting block 802. A lower gear 806 is fixedly connected to one end of the spring 805. An upper gear 807 is positioned above the outer end of the gear 804. A rectangular groove perpendicular to the groove is formed below the end of the groove near the punch 801 inside the mounting block 802. A sliding groove parallel to the groove is formed above the end of the groove near the punch 801 inside the mounting block 802, with the opening of the sliding groove being at the end furthest from the lower gear 806. The ends of the rectangular groove and the slide away from the punch 801 are connected to the groove. The end of the spring 805 away from the lower toothed rod 806 is fixedly connected to the innermost end of the rectangular groove. The outer side of the lower toothed rod 806 is slidably connected to the inner side of the rectangular groove. The outer side of the upper toothed rod 807 is slidably connected to the inner side of the slide. The lower toothed rod 806 and the upper toothed rod 807 mesh with the gear 804. A slot is provided inside the upper template 7 at the slide near the mounting block 802 in the mounting groove. The outer side of the end of the upper toothed rod 807 away from the lower toothed rod 806 is inserted into the inner side of the slot. When the lower toothed rod 806 is pushed into the mounting block 802, causing the gear 804 to rotate, the upper toothed rod 807 can move outward along the slide groove. This allows the upper toothed rod 807 to slide completely into the slide groove after the lower toothed rod 806 is pulled down. Then, the mounting block 802 is slid into the mounting groove inside the upper template 7 until the mounting block 802 is completely in the mounting groove. After the lower toothed rod 806 is released, the spring 805 rebounds and pulls the lower toothed rod 806 into the mounting block 802, causing the upper toothed rod 807 to move outward until the end of the upper toothed rod 807 away from the lower toothed rod 806 slides into the slot. This fixes the mounting block 802 into the corresponding mounting slot and simultaneously fixes the punch 801 at the inner end of the mounting slot.

[0020] Cooperate Figure 7As shown, an auxiliary unit is provided inside the upper template 7. The auxiliary unit includes a second circular shaft 901 connected inside the upper template 7, and a cylindrical rod 902 is connected to the outer end of the second circular shaft 901. Vertical grooves are symmetrically formed at the upper and lower ends of the mounting groove on both sides of the upper template 7. The upper and lower ends of the second circular shaft 901 are fixedly connected to the middle positions of the upper and lower ends of the vertical grooves. A through-hole is formed inside the cylindrical rod 902, and the outer side of the second circular shaft 901 is rotatably connected to the inner side of the through-hole. The outer end of the cylindrical rod 902 away from the vertical groove is rollingly connected to the outer side of the punch 801 and the mounting block 802. Therefore, when the punch 801 and mounting block 802 are slid into the mounting groove, the outer sides of the punch 801 and mounting block 802 will continuously contact the outer end of the cylindrical rod 902, causing the cylindrical rod 902 to rotate at the outer end of the second cylindrical shaft 901. This prevents the punch 801 and mounting block 802 from contacting the inner side of the mounting groove when they move to the inner side. The rolling of the cylindrical rod 902 on the outer side of the punch 801 and mounting block 802 makes the assembly and disassembly of the punch 801 and mounting block 802 in the mounting groove faster and smoother, while avoiding wear on the outer side of the punch 801 and mounting block 802 and the inner side of the mounting groove.

[0021] Working principle: When the stamping die is stamping the hardware parts, the raw material strip of the hardware parts is conveyed to the guide plate 3, and the stamping machine at the outer end of the stamping die is turned on, so that the upper die base 5 moves up and down repeatedly. At the same time, the punch 801 moves up and down continuously to stamp the strip. The hardware parts formed by stamping from the strip will fall from the bottom of the lower die base 1 and be collected.

[0022] All technical features in this embodiment can be freely combined according to actual needs.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hardware stamping die comprising a lower die shoe (1), characterized in that, A lower die plate (2) is installed on the upper side of the lower die base (1). A guide plate (3) is provided inside the lower die plate (2). A die cavity (4) is installed at the upper end of the lower die plate (2). An upper die base (5) is provided above the lower die plate (2). A pad plate (6) is installed on the lower side of the upper die base (5). An upper die plate (7) is installed on the lower side of the pad plate (6). A disassembly and assembly mechanism is provided inside the upper die plate (7). The disassembly and assembly mechanism includes a punch (80) installed inside the upper die plate (7) for stamping hardware parts. 1) An installation block (802) is installed inside the upper template (7). A first round shaft (803) is connected inside the installation block (802). A gear (804) is rotatably connected to the outside of the first round shaft (803). A spring (805) is connected inside the installation block (802). A lower toothed rod (806) is fixedly connected to one end of the spring (805). An upper toothed rod (807) is provided above the outer end of the gear (804). An auxiliary unit is provided inside the upper template (7).

2. The hardware stamping die of claim 1, wherein, The auxiliary unit includes a second round shaft (901) connected inside the upper template (7), and a cylindrical rod (902) is connected to the outer end of the second round shaft (901).

3. The hardware stamping die of claim 1, wherein, The upper template (7) has mounting grooves around its perimeter, and the two ends of the outer side of the punch (801) abut against the innermost end of the mounting groove and the side of the mounting block (802) near the innermost end of the mounting groove.

4. The metal stamping die according to claim 1, characterized in that, The mounting block (802) has a groove below the end away from the punch (801). The upper and lower ends of the first round shaft (803) are fixedly connected to the upper and lower ends of the groove. The upper and lower sides of the gear (804) are slidably connected to the upper and lower ends of the groove.

5. The hardware stamping die of claim 1, wherein, The mounting block (802) has a rectangular groove perpendicular to the groove below the end of the groove near the punch (801). The mounting block (802) also has a sliding groove parallel to the groove above the end of the groove near the punch (801), with the opening of the sliding groove being away from the lower toothed rod (806). Both the rectangular groove and the sliding groove inside the mounting block (802) are connected to the groove at the ends away from the punch (801). The spring (805) is located at the end away from the lower toothed rod (806). The lower toothed rod (806) is fixedly connected to the innermost end of the rectangular groove. The outer side of the lower toothed rod (806) is slidably connected to the inner side of the rectangular groove. The outer side of the upper toothed rod (807) is slidably connected to the inner side of the slide groove. The lower toothed rod (806) and the upper toothed rod (807) mesh with the gear (804). The upper template (7) has a slot located in the slide groove near the mounting block (802) inside the mounting groove. The outer side of the upper toothed rod (807) away from the lower toothed rod (806) is inserted into the inner side of the slot.

6. The hardware stamping die of claim 2, wherein, The upper template (7) has vertical grooves symmetrically opened at the upper and lower ends of the mounting groove on both sides, and the upper and lower ends of the second round shaft (901) are fixedly connected to the middle position of the upper and lower ends of the vertical groove. The cylindrical rod (902) has a rotating hole that runs through the upper and lower sides, and the outer side of the second round shaft (901) is rotatably connected to the inner side of the rotating hole.

7. The hardware stamping die of claim 2, wherein, The outer end of the cylindrical rod (902) away from the vertical groove is rolledly connected to the outer side of the punch (801) and the mounting block (802).

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