Modularized quick-changing and automatic-locking hardware stamping die and working method thereof

Abstract

The invention relates to the field of stamping die frames, in particular to a modularized quick-changing and automatic-locking hardware stamping die and a working method thereof.The modularized quick-changing and automatic-locking hardware stamping die comprises an upper die base, a lower die base and a die core, the die core is arranged between the upper die base and the lower die base, a stamping cavity is formed in the die core, and the die core comprises an upper core block, a lower core block and a connecting assembly; the connecting assembly is provided with two connecting ends which are detachably connected with the upper core block and the lower core block respectively, the connecting assembly is of a telescopic structure, and locking mechanisms are arranged on the upper die base and the lower die base respectively. The upper core block and the lower core block are connected with or separated from the upper die base and the lower die base through the locking mechanisms correspondingly, so that only the upper core block and the lower core block can be replaced when stamping requirements of different types of workpieces are met, in addition, the connecting assembly is arranged between the upper core block and the lower core block, the upper core block and the lower core block are connected into a whole, the replacement speed can be increased, and the cost is reduced. The replacement operation is simplified, and the workpiece production and machining efficiency is further improved.

Description

Technical Field

[0001] This application relates to the technical field of stamping dies, and in particular to a modular quick-change and automatic locking hardware stamping die and its working method. Background Technology

[0002] Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or undergo plastic deformation, thereby obtaining the desired parts. Stamping dies mainly consist of process parts and non-process parts. Process parts directly participate in the stamping process (such as the punch and die of the stamping die), while non-process parts provide auxiliary functions (such as guiding and fixing components).

[0003] In related technologies, the lower die base of the stamping die is fixed on the base surface, the die cavity is set on the lower die base and a cavity that matches the workpiece to be stamped is formed on the die cavity surface, the upper die base of the stamping die is connected to the stamping head, the punch is set on the upper die base and a punch with a matching cavity is formed on the punch surface, and the upper die base and punch are moved downward by the stamping head to stamp the workpiece placed on the die cavity.

[0004] The problem with this technology is that the punch and upper die base, and the die and lower die base, are typically fixed together by welding or threaded connections. For example, threaded holes are made at corresponding positions on the punch and upper die base, and screws are screwed into these holes for connection. Different types of workpieces usually require stamping with dies of different structures. This necessitates either setting up more stamping stations or changing the stamping dies on the stamping equipment, both of which incur higher costs and longer processing times, impacting workpiece production efficiency. Summary of the Invention

[0005] In order to meet the stamping requirements of different types of workpieces and improve workpiece production efficiency, this application provides a modular quick-change and automatic locking hardware stamping die and its working method.

[0006] The technical solution provided in this application for a modular quick-change and automatic locking hardware stamping die and its working method is as follows:

[0007] A modular quick-change and automatic locking hardware stamping die includes an upper die base, a lower die base, and a die core. The die core is disposed between the upper die base and the lower die base and has a stamping cavity formed on it for stamping workpieces. The die core includes an upper core block, a lower core block, and a connecting assembly. The connecting assembly has two connecting ends that are detachably connected to the upper core block and the lower core block, respectively. The connecting assembly adopts a telescopic structure. The upper die base and the lower die base are respectively provided with locking mechanisms. The upper core block can be connected to the upper die base through the locking mechanism, and the lower core block can be connected to the lower die base through the locking mechanism.

[0008] Optionally, the upper core block and the lower core block have sliding grooves on their opposite sides, the connecting end of the connecting component extends into the sliding groove, and each sliding groove has an opening, through which the connecting end of the connecting component can disengage from the sliding groove, and a snap-fit ​​element is provided at the opening.

[0009] Optionally, the connecting assembly includes support rods and connectors. There are two support rods that are rotatably connected to each other. Connectors are rotatably installed at the ends of the two support rods. Two connectors at the same end are slidably connected to the upper core block, and two connectors at the other end are slidably connected to the lower core block. The connectors are the connecting ends that allow the connecting assembly to be detachably connected to the upper and lower core blocks.

[0010] Optionally, the upper core block and the lower core block are respectively provided with locking grooves at their opposite ends. The locking mechanism has a locking member that cooperates with the locking groove, and a driving assembly that drives the locking member to enter or disengage from the locking groove. The driving assembly is installed in the upper mold base and the lower mold base, and the locking member is disposed at the driving end of the driving assembly and is slidably connected to the upper mold base and the lower mold base.

[0011] Optionally, both the upper and lower mold bases have cavities. The drive assembly includes a gear installed in the cavity and racks meshing on both sides of the gear. The surface of the upper mold base has a moving groove communicating with the cavity. A locking member passes through the moving groove and connects to the rack. The drive assembly also includes a driver that drives the gear to rotate.

[0012] Optionally, the locking mechanism respectively provided on the upper mold base and the lower mold base has two sets of driving components and four locking members. The number of locking grooves opened on the upper core block and the lower core block is four, and each corresponds to one of the four locking members. The cross-sectional shape of the locking members and the locking grooves is T-shaped.

[0013] Optionally, guide rods are fixed around the lower die base facing the upper die base, and guide sleeves are correspondingly installed on the upper die base. The guide rods pass through the guide sleeves. A die handle is also provided on the side of the upper die base away from the lower die base. The upper die base is connected to the stamping device through the die handle.

[0014] Optionally, the mating surfaces of the upper mold base and the upper core block, and the mating surfaces of the lower mold base and the lower core block are respectively provided with mutually cooperating positioning pins and positioning holes.

[0015] This application also provides a working method for the above-mentioned modular quick-change and automatic locking hardware stamping die, including the following steps:

[0016] S1. In the working state, the hardware is placed on the lower core block;

[0017] S2. Control the stamping press to drive the upper die base and upper core block to move downwards, and stamp the hardware parts into the required shape;

[0018] S3. Remove the formed hardware and place other hardware on top to continue the stamping process.

[0019] Optionally, when it is necessary to replace the mold core, the following steps should be taken:

[0020] A1. Control the upper mold base and the upper core block to move downwards so that the upper core block fits into the lower core block;

[0021] A2. Activate the locking mechanisms respectively provided on the upper mold base and the lower mold base to separate the upper core block from the upper mold base and the lower core block from the lower mold base;

[0022] A3. Control the upper mold base to rise. At this time, the upper mold base is separated from the upper core block, and the upper core block is placed on the lower core block.

[0023] A4. Remove the mold core from the lower mold base and place the mold core to be replaced on top;

[0024] A5. Control the upper mold base to move downwards so that the upper mold base contacts the upper core block;

[0025] A6. Activate the locking mechanisms respectively provided on the upper mold base and the lower mold base to connect the upper core block to the upper mold base and the lower core block to the lower mold base;

[0026] A7. Control the upper mold base to move upward, and the upper core block will move upward accordingly;

[0027] A8. Place the hardware onto the lower core block and continue the stamping process.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. Locking mechanisms are provided on both the upper and lower die bases. The upper and lower core blocks are connected to or separated from the upper and lower die bases respectively through the locking mechanisms. This allows only the upper and lower core blocks to be replaced when stamping different types of workpieces, improving workpiece production efficiency. In addition, a connecting component is provided between the upper and lower core blocks to connect them as a whole, which can improve the replacement speed, simplify the replacement operation, and further improve workpiece production efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the main structure of an embodiment of this application.

[0031] Figure 2 This is a frontal cross-sectional structural diagram of an embodiment of this application.

[0032] Figure 3 yes Figure 2A magnified schematic diagram of the structure at point A in the middle.

[0033] Figure 4 yes Figure 2 Enlarged schematic diagram of the structure at point B.

[0034] Reference numerals: 1. Upper mold base; 2. Lower mold base; 3. Mold core; 31. Upper core block; 32. Lower core block; 33. Connecting assembly; 331. Support rod; 332. Connecting piece; 4. Locking mechanism; 41. Locking piece; 42. Drive assembly; 421. Gear; 422. Rack; 423. Driver; 5. Snap-fit ​​piece; 6. Guide rod; 7. Guide sleeve; 8. Mold handle; 9. Positioning pin. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0036] This application discloses a modular quick-change and automatic locking hardware stamping die. (Refer to...) Figure 1 The modular quick-change and automatic locking metal stamping die includes an upper die base 1, a lower die base 2, and a die core 3, arranged sequentially from top to bottom. When stamping a workpiece using this die, the lower die base 2 is fixed to the working surface of the stamping equipment, while the upper die base 1 is connected to the stamping head of the stamping equipment. A stamping cavity is formed within the die core 3, where the workpiece is stamped and formed. The die core 3 includes an upper core block 31 and a lower core block 32, with the upper core block 31 connected to the upper die base 1 and the lower core block 32 connected to the lower die base 2. During stamping, the workpiece is placed on the lower core block 32, and the stamping head drives the upper die base 1 and the upper core block 31 to move downwards to complete the stamping action.

[0037] Specifically, a die shank 8 is fixedly connected to the side of the upper die base 1 facing away from the die core 3, and the aforementioned stamping head is connected to the upper die base 1 through the die shank 8; guide rods 6 are fixedly installed on the lower die base 2, preferably four guide rods 6 evenly distributed at the four corners of the lower die base 2, each guide rod 6 being parallel to each other and extending upward to the upper die base 1. Corresponding to the guide rods 6, a through hole is opened on the upper die base 1, and a guide sleeve is installed in the through hole. The upper die base 1 is slidably connected to the guide rods 6 through the guide sleeve to limit the displacement direction of the upper die base 1 and ensure stable stamping operation.

[0038] Reference Figure 2 and Figure 3 Locking mechanisms 4 are respectively provided on the upper mold base 1 and the lower mold base 2. The upper core block 31 is detachably connected to the upper mold base 1 through the locking mechanism 4, and the lower core block 32 is detachably connected to the lower mold base 2 through the locking mechanism 4.

[0039] The locking mechanism 4 includes a drive assembly 42 and a locking element 41. The drive assembly 42 is mounted on the upper mold base 1 / lower mold base 2. Each drive assembly 42 has two drive ends, and each drive end is equipped with a locking element 41. The two drive ends of the drive assembly 42 can move closer or further apart. The locking element 41 is slidably mounted on the upper mold base 1 / lower mold base 2, so that the locking element 41 can move synchronously with the drive ends. Corresponding to the locking element 41, a locking groove is provided on the upper core block 31 / lower core block 32. When the drive assembly 42 drives the two locking elements 41 to move closer together, the locking element 41 can be inserted into the corresponding locking groove; when the drive assembly 42 drives the two locking elements 41 to move further apart, the locking element 41 can disengage from the locking groove, thereby realizing the connection or separation of the upper mold base 1 / lower mold base 2 and the upper core block 31 / lower core block 32.

[0040] Furthermore, cavities are respectively formed inside the upper mold base 1 and the lower mold base 2, and movable grooves communicating with the cavities are formed on the surface of the upper mold base 1 and the lower mold base 2. The locking member 41 is slidably installed in the movable groove and partially extends into the cavity to connect with the driving end of the driving assembly 42. Preferably, the locking groove and the locking member 41 are configured as a matching T-shaped structure, so that the upper mold base 1 / lower mold base 2 and the upper core block 31 / lower core block 32 have a better connection effect.

[0041] In some preferred embodiments of this application, the drive assembly 42 includes a gear 421 installed in a cavity. The gear 421 is horizontally arranged and rotatably connected to the upper mold base 1 / lower mold base 2. Racks 422 mesh with the gear 421 on both sides. The end of the rack 422 away from the gear 421 is the drive end of the drive assembly 42. The portion of the locking member 41 extending into the cavity is connected to the rack 422. The drive assembly 42 also includes a driver 423 installed in the cavity. The driver 423 drives the gear 421 to rotate. When the gear 421 rotates, the meshing rack 422 moves accordingly, thereby causing the two corresponding locking members 41 to move closer or further apart. Preferably, the driver 423 is a rotary hydraulic cylinder.

[0042] Furthermore, those skilled in the art will understand that a support platform should be provided within the cavity corresponding to the position of each rack 422, and a guide groove is formed on the support platform for the rack 422 to slide. The support platform provides support for the rack 422 and limits the direction of movement of the rack 422, ensuring the stability of the drive assembly 42.

[0043] The locking mechanism 4, which is respectively disposed on the upper mold base 1 and the lower mold base 2, preferably includes two sets of drive components 42. The two sets of drive components 42 are respectively connected to two locking elements 41. Correspondingly, four locking slots are respectively provided on the upper mold base 1 and the lower mold base 2. When the locking mechanism 4 is activated, the two sets of drive components 42 move synchronously, driving the four locking elements 41 to simultaneously insert into or disengage from the locking slots. The locking elements 41 and the locking slots are configured as mutually cooperating T-shaped structures to securely connect the upper mold base 1 / lower mold base 2 with the upper core block 31 / lower core block 32.

[0044] In some preferred embodiments of this application, corresponding positioning holes and positioning pins 9 are respectively provided on the mating surfaces of the upper mold base 1 / lower mold base 2 and the upper core block 31 / lower core block 32, so as to facilitate the staff to determine the installation position of the upper core block 31 and the lower core block 32, and at the same time improve the connection effect between the upper mold base 1 / lower mold base 2 and the upper core block 31 / lower core block 32.

[0045] Reference Figure 2 and Figure 4 The mold core 3 also includes a connecting component 33 disposed between the upper core block 31 and the lower core block 32. The connecting component 33 adopts a telescopic structure, connecting the upper core block 31 and the lower core block 32 while allowing them to move closer or further apart. In practical applications, two sets of connecting components 33 are preferably provided, symmetrically distributed on both sides of the mold core 3. When the upper core block 31 and the lower core block 32 move relative to each other, the two sets of connecting components 33 move synchronously to ensure stability.

[0046] In some preferred embodiments of this application, the connecting assembly 33 consists of support rods 331 and connectors 332. There are two support rods 331, which are rotatably connected with their connection point located in the middle. There are four connectors 332, which are rotatably mounted on both ends of the two support rods 331. Corresponding to the connecting assembly 33, sliding grooves are respectively formed on the upper core block 31 and the lower core block 32. The connectors 332 are slidably mounted in the sliding grooves and engage with the upper core block 31 / lower core block 32. With the above structure, when the upper core block 31 and the lower core block 32 approach each other, the included angle of the two support rods 331 increases, and the two connectors 332 slidably mounted on the upper core block 31 / lower core block 32 move away from each other in the sliding groove; when the upper core block 31 and the lower core block 32 move away from each other, the included angle of the two support rods 331 decreases, and the two connectors 332 slidably mounted on the upper core block 31 / lower core block 32 approach each other in the sliding groove.

[0047] Furthermore, an opening is formed in the slide groove, preferably located in the middle of the slide groove. A snap-fit ​​element 5 is provided at the opening. The snap-fit ​​element 5 adopts an elastic snap-fit ​​structure. When the upper core block 31 and the lower core block 32 move away from each other, the two connecting elements 332 located in the slide groove move synchronously toward the opening and abut against the snap-fit ​​element 5 at the opening. At this time, an external force is applied to the upper core block 31 / lower core block 32 to open the opening. At this time, the connecting element 332 can be disengaged from the slide groove through the opening, thereby allowing the upper core block 31, the connecting component 33, and the lower core block 32 to separate from each other.

[0048] It should be noted that during the stamping process, the movement distance of the upper core block 31 fixed on the upper die holder 1 should be limited so that when the upper core block 31 moves to the farthest distance away from the lower core block 32, the two connecting parts 332 located in the groove of the upper core block 31 do not contact the snap-fit ​​part 5, so as to prevent the connecting assembly 33 from separating from the upper core block 31 during the stamping process.

[0049] This application also discloses a method for operating a modular quick-change and automatic locking hardware stamping die, including the following steps:

[0050] S1. In the working state, the hardware is placed on the lower core block 32;

[0051] S2. Control the stamping press to drive the upper die holder 1 and the upper core block 31 to move downwards, and stamp the hardware into the required shape;

[0052] S3. Remove the formed hardware and place other hardware on top to continue the stamping process.

[0053] Furthermore, when it is necessary to change the mold core 3 according to different types of workpieces, the following steps are taken:

[0054] A1. Control the upper mold base 1 and the upper core block 31 to move downwards, so that the upper core block 31 fits with the lower core block 32;

[0055] A2. Activate the locking mechanism 4 respectively provided on the upper mold base 1 and the lower mold base 2 to separate the upper core block 31 from the upper mold base 1 and the lower core block 32 from the lower mold base 2;

[0056] A3. Control the upper mold base 1 to rise. At this time, the upper mold base 1 is separated from the upper core block 31, and the upper core block 31 is placed on the lower core block 32.

[0057] A4. Remove the mold core 3 from the lower mold base 2 and place the mold core 3 to be replaced on top;

[0058] A5. Control the upper mold base 1 to move downwards so that the upper mold base 1 contacts the upper core block 31;

[0059] A6. Activate the locking mechanism 4 respectively provided on the upper mold base 1 and the lower mold base 2, so that the upper core block 31 is connected to the upper mold base 1 and the lower core block 32 is connected to the lower mold base 2;

[0060] A7. Control the upper mold base 1 to move upward, and the upper core block 31 will move upward accordingly;

[0061] A8. Place the hardware parts onto the lower core block 32 and continue the stamping process.

[0062] This application provides a modular quick-change and automatic locking hardware stamping die and its working method. By setting locking mechanisms 4 on both the upper die base 1 and the lower die base 2, the upper core block 31 and the lower core block 32 are connected or separated from the upper die base 1 and the lower die base 2 respectively through the locking mechanisms 4. This allows only the upper core block 31 and the lower core block 32 to be replaced when stamping different types of workpieces, thus improving the workpiece production efficiency. In addition, a connecting component 33 is set between the upper core block 31 and the lower core block 32 to connect the upper core block 31 and the lower core block 32 into a whole, which can improve the replacement speed, simplify the replacement operation, and further improve the workpiece production efficiency.

[0063] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A modular quick-change and automatic locking hardware stamping die, characterized in that: The mold includes an upper mold base (1), a lower mold base (2), and a mold core (3). The mold core (3) is located between the upper mold base (1) and the lower mold base (2). A stamping cavity is formed on the mold core (3) for stamping workpieces. The mold core (3) includes an upper core block (31), a lower core block (32), and a connecting assembly (33). The connecting assembly (33) has two connecting ends that are detachably connected to the upper core block (31) and the lower core block (32), respectively. The connecting assembly (33) adopts a telescopic structure. Locking mechanisms (4) are provided on the upper mold base (1) and the lower mold base (2), respectively. The upper core block (31) can be connected to the upper mold base (1) through the locking mechanism (4), and the lower core block (32) can be connected to the lower mold base (2) through the locking mechanism (4).

2. The modular quick-change and automatic locking metal stamping die according to claim 1, characterized in that: The upper core block (31) and the lower core block (32) have sliding grooves on their opposite sides, and the connecting end of the connecting component (33) extends into the sliding groove. Each sliding groove has an opening, and the connecting end of the connecting component (33) can be disengaged from the sliding groove through the opening. A snap-fit ​​component (5) is provided at the opening.

3. The modular quick-change and automatic locking metal stamping die according to claim 1, characterized in that: The connecting assembly (33) includes a support rod (331) and a connector (332). There are two support rods (331) that are rotatably connected to each other. Connectors (332) are rotatably installed at the ends of the two support rods (331). The two connectors (332) at the same end are slidably connected to the upper core block (31), and the two connectors (332) at the other end are slidably connected to the lower core block (32). The connector (332) is the connecting end that can be detachably connected to the connecting assembly (33) and the upper core block (31) and the lower core block (32).

4. The modular quick-change and automatic locking metal stamping die according to claim 1, characterized in that: The upper core block (31) and the lower core block (32) are respectively provided with locking grooves at their opposite ends. The locking mechanism (4) has a locking member (41) that cooperates with the locking groove, and a driving assembly (42) that drives the locking member (41) to enter or leave the locking groove. The driving assembly (42) is installed in the upper mold base (1) and the lower mold base (2). The locking member (41) is located at the driving end of the driving assembly (42) and is slidably connected to the upper mold base (1) and the lower mold base (2).

5. The modular quick-change and automatic locking metal stamping die according to claim 4, characterized in that: The upper mold base (1) and the lower mold base (2) are both formed with cavities. The drive assembly (42) includes a gear (421) installed in the cavity and a rack (422) meshing with both sides of the gear (421). The upper mold base (1) has a moving groove that communicates with the cavity. The locking member (41) passes through the moving groove and is connected to the rack (422). The drive assembly (42) also includes a driver (423) that drives the gear (421) to rotate.

6. The modular quick-change and automatic locking hardware stamping die according to claim 5, characterized in that: The locking mechanism (4) set on the upper mold base (1) and the lower mold base (2) respectively has two sets of driving components (42) and four locking parts (41). The number of locking grooves opened on the upper core block (31) and the lower core block (32) is four, and they correspond to the four locking parts (41) respectively. The cross-sectional shape of the locking parts (41) and the locking grooves is T-shaped.

7. The modular quick-change and automatic locking metal stamping die according to claim 1, characterized in that: The lower die base (2) is fixed with guide rods (6) on all four sides of the side facing the upper die base (1). The upper die base (1) is equipped with a guide sleeve (7), and the guide rods (6) pass through the guide sleeve (7). The side of the upper die base (1) facing away from the lower die base (2) is also provided with a die handle (8). The upper die base (1) is connected to the stamping machine through the die handle (8).

8. The modular quick-change and automatic locking hardware stamping die according to claim 1, characterized in that: The mating surfaces of the upper mold base (1) and the upper core block (31), and the mating surfaces of the lower mold base (2) and the lower core block (32) are respectively provided with mutually cooperating positioning pins (9) and positioning holes.

9. A method for operating a modular quick-change and automatic locking hardware stamping die, used in any one of claims 1-8, comprising the following steps: S1. In the working state, the hardware is placed on the lower core block (32); S2. Control the stamping machine to drive the upper die holder (1) and the upper core block (31) to move downwards, and stamp the hardware into the required shape; S3. Remove the formed hardware and place other hardware on top to continue the stamping process.

10. The working method of the modular quick-change and automatic locking hardware stamping die according to claim 9, when it is necessary to replace the die core (3), the following steps are adopted: A1. Control the upper mold base (1) and the upper core block (31) to move downwards so that the upper core block (31) fits against the lower core block (32); A2. Activate the locking mechanism (4) respectively set on the upper mold base (1) and the lower mold base (2) to separate the upper core block (31) from the upper mold base (1) and the lower core block (32) from the lower mold base (2); A3. Control the upper mold base (1) to rise. At this time, the upper mold base (1) is separated from the upper core block (31), and the upper core block (31) is placed on the lower core block (32); A4. Remove the mold core (3) from the lower mold base (2) and place the mold core (3) to be replaced on it. A5. Control the upper mold base (1) to move downward so that the upper mold base (1) contacts the upper core block (31); A6. Activate the locking mechanism (4) respectively set on the upper mold base (1) and the lower mold base (2) to connect the upper core block (31) to the upper mold base (1) and the lower core block (32) to the lower mold base (2); A7. Control the upper mold base (1) to move upward, and the upper core block (31) will move upward accordingly; A8. Place the hardware parts onto the lower core block (32) and continue the stamping process.

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