Multi-station synchronous punching die

Abstract

The utility model discloses a multi-station synchronous punching die which comprises a bottom plate and a top plate, the top of the bottom plate is fixedly connected with a lower die base, a bearing hole plate is arranged in the lower die base, grooves are formed in the inner walls of the two sides of the lower die base respectively, and linkage assemblies matched with the bearing hole plate for auxiliary demolding are arranged in the grooves. The top plate, the mounting base, the connecting piece, the connecting block and the clamping assembly are arranged and used in cooperation, so that the connecting piece can be rapidly disassembled and assembled, the die replacing efficiency is remarkably improved, the multi-variety and small-batch production requirements are met, the operation process is simplified, puncher pin replacement can be completed without a special tool, and the die replacing efficiency is improved. And through cooperative use of the lower die base, the groove and the linkage assembly, after punching of the plate is completed, the bearing hole plate can be jacked upwards with the help of external force, so that the effect of rapidly demolding the product can be achieved, and the punching efficiency of the plate is improved advantageously.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal stamping technology, specifically a multi-station synchronous punching die. Background Technology

[0002] Punching dies are key tools used to create holes in the processing of metal or non-metal sheets. They are widely used in machinery manufacturing, electronics, automotive parts, building hardware and other fields. Their core function is to use pressure to make the punch penetrate the material and form holes of specific shapes and sizes to facilitate subsequent installation processes.

[0003] For example, a punching die (Announcement No.: CN219805219U) includes a base, with columns fixedly installed at all four ends of the top of the base. A top plate is fixedly installed at the top of the four columns. A cylinder is fixedly installed at the middle position of the top of the top plate. A pneumatic telescopic rod is provided at the output end of the cylinder. A lifting plate is fixedly installed at the bottom end of the pneumatic telescopic rod. A punch is fixedly installed at the middle position of the bottom of the lifting plate. A punching platform is fixedly installed at the middle position of the top of the base. A punching slot is opened at the middle position of the top of the punching platform. The punching slot is located directly below the punch. A bidirectional lead screw is movably installed inside the punching platform. This utility model solves the problem that existing sheet metal specifications are inconsistent, resulting in inconsistent sheet metal dimensions and the inability to position the material in multiple directions, making it easy for the material to shift during the punching process and affecting the punching quality.

[0004] The above-mentioned mold adopts a fixed punch structure. When facing the production needs of multiple varieties and small batches, punch replacement requires disassembling the entire mold or using special tools, which is time-consuming and results in high equipment downtime costs. Therefore, we need to propose a multi-station synchronous punching mold. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-station synchronous punching die, which aims to solve the problem that in the existing technology, the die adopts a fixed punch structure. When facing the production needs of multiple varieties and small batches, the punch replacement requires disassembling the entire die or using special tools, which is time-consuming and results in high equipment downtime costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-station synchronous punching die includes a base plate and a top plate. A lower die base is fixedly connected to the top of the base plate. A support plate is provided inside the lower die base. Grooves are respectively opened on the inner walls of both sides of the lower die base. A linkage component that cooperates with the support plate to assist in demolding is provided inside the groove. A mounting base corresponding to the lower die base is fixedly connected to the bottom of the top plate. A connector is provided inside the mounting base. A connecting block is fixedly connected to the bottom of the connector. A punching head is fixedly connected to the bottom of the connecting block. Clamping components for quick assembly and disassembly of the connector are respectively provided on the side walls of the mounting base.

[0008] Preferably, the clamping assembly includes a positioning shell, which is fixedly installed on one side wall of the mounting base. A slider is slidably inserted inside the positioning shell. One end of the slider passes through the mounting base and is inserted into the inside of the connector. The other end of the slider is fixedly connected to a telescopic spring, and one end of the telescopic spring is fixedly connected to one inner wall of the positioning shell.

[0009] Preferably, positioning grooves are respectively provided on the two side walls of the connector, and a wedge-shaped part adapted to the positioning groove is provided at one end of the slider, and the wedge-shaped part is inserted into the inside of the positioning groove.

[0010] Preferably, a pull rod is slidably inserted into one side wall of the positioning shell, one end of the pull rod passes through the positioning shell and is fixedly connected to one end of the slider, and the telescopic spring is movably sleeved on the outer wall of the pull rod.

[0011] Preferably, the mounting base has an internal mounting groove adapted to the connector, and the connector is slidably inserted into the internal mounting groove.

[0012] Preferably, the bottom of the mounting base is provided with a through groove, the through groove is connected to the interior of the mounting groove, and the connecting block is inserted into the interior of the through groove.

[0013] Preferably, the linkage component includes a guide block, which is fixedly connected to one side wall of the support plate. A guide rod is inserted into the inside of the guide block. The top and bottom ends of the guide rod are fixedly connected to the inner top and inner bottom of the groove, respectively. A return spring is sleeved on the outer wall of the guide rod.

[0014] Preferably, a sliding sleeve is fixedly embedded inside the guide block, and the guide rod is slidably inserted into the inside of the sliding sleeve.

[0015] Preferably, the top end of the reset spring is fixedly connected to the inner top of the groove, and the bottom end of the reset spring is fixedly connected to the top of the guide block.

[0016] Preferably, a connector is fixedly connected to the top of the top plate, and a sliding rod is slidably inserted into the inside of the top plate. The bottom end of the sliding rod passes through the top plate and is fixedly connected to the top of the bottom plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This utility model, through the coordinated use of a top plate, mounting base, connector, connecting block, and clamping assembly, enables rapid assembly and disassembly of the connector, significantly improving mold change efficiency, adapting to the needs of multi-variety, small-batch production, simplifying the operation process, and allowing punch replacement without special tools, thus reducing maintenance costs. By setting a lower mold base, using grooves and linkage components in conjunction, after the sheet metal is punched, the supporting plate can be lifted upwards with the help of the linkage components, thereby achieving the effect of rapid product demolding and further improving the sheet metal punching efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the lower mold base of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the mounting base, connector and punching head of this utility model;

[0022] Figure 4 This is a schematic diagram of the clamping assembly of this utility model.

[0023] In the diagram: 1. Base plate; 2. Lower mold base; 3. Top plate; 4. Supporting hole plate; 5. Groove; 6. Linkage assembly; 601. Guide block; 602. Guide rod; 603. Return spring; 7. Mounting base; 8. Connecting piece; 9. Connecting block; 10. Punching head; 11. Clamping assembly; 1101. Positioning shell; 1102. Slider; 1103. Telescopic spring; 12. Positioning groove; 13. Wedge-shaped part; 14. Pull rod; 15. Mounting groove; 16. Through groove; 17. Connector; 18. Slide rod. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-4 This utility model provides an embodiment:

[0026] A multi-station synchronous punching die includes a base plate 1 and a top plate 3. A lower die base 2 is fixedly connected to the top of the base plate 1. A support plate 4 is provided inside the lower die base 2. The support plate 4 is used to support the sheet metal and assist in demolding. Grooves 5 are respectively provided on the inner walls of both sides of the lower die base 2. A linkage component 6 is provided inside the groove 5 to cooperate with the support plate 4 for assisting demolding. A mounting seat 7 corresponding to the lower die base 2 is fixedly connected to the bottom of the top plate 3. A connector 8 is provided inside the mounting seat 7. A connecting block 9 is fixedly connected to the bottom of the connector 8. A punching head 10 is fixedly connected to the bottom of the connecting block 9. Clamping components 11 for quick assembly and disassembly of the connector 8 are respectively provided on the side walls of the mounting seat 7. By accurately aligning the upper and lower die bases, the synchronous action of the multi-station punching heads is ensured. The quick assembly and disassembly of the punching head 10 is achieved by the clamping components 11, which significantly improves the mold changing efficiency, adapts to the needs of multi-variety and small-batch production, and simplifies the operation process.

[0027] Furthermore, such as Figure 4 As shown, the clamping assembly 11 includes a positioning shell 1101, which is fixedly installed on one side wall of the mounting base 7. A slider 1102 is slidably inserted into the interior of the positioning shell 1101. One end of the slider 1102 passes through the mounting base 7 and is inserted into the interior of the connector 8. The other end of the slider 1102 is fixedly connected to a telescopic spring 1103. One end of the telescopic spring 1103 is fixedly connected to the inner wall of one side of the positioning shell 1101. The telescopic spring 1103 provides elastic preload to prevent the punch head 10 from loosening.

[0028] Furthermore, such as Figure 3 As shown, positioning grooves 12 are respectively provided on the two side walls of the connector 8. One end of the slider 1102 is provided with a wedge-shaped part 13 that is adapted to the positioning groove 12. The wedge-shaped part 13 is inserted into the inside of the positioning groove 12. The matching design of the wedge-shaped part 13 and the positioning groove 12 ensures the stability of the connector 8 during the stamping process.

[0029] Furthermore, such as Figure 4 As shown, a pull rod 14 is slidably inserted into one side wall of the positioning shell 1101. One end of the pull rod 14 passes through the positioning shell 1101 and is fixedly connected to one end of the slider 1102. The telescopic spring 1103 is movably sleeved on the outer wall of the pull rod 14. The pull rod 14 facilitates the operator to quickly pull the slider 1102, thereby realizing the quick assembly and disassembly of the punch head.

[0030] Preferred, such as Figure 3As shown, the mounting base 7 has an internal mounting groove 15 that is adapted to the connector 8. The connector 8 is slidably inserted into the inside of the mounting groove 15. The bottom of the mounting base 7 has a through groove 16 that communicates with the inside of the mounting groove 15. The connecting block 9 is inserted into the inside of the through groove 16. The communication design between the mounting groove 15 and the through groove 16 ensures the perpendicularity of the connecting block 9 and the punch head 10, and avoids punching deviation.

[0031] Preferred, such as Figure 2 As shown, the linkage component 6 includes a guide block 601, which is fixedly connected to one side wall of the support plate 4. A guide rod 602 is inserted into the guide block 601. The top and bottom ends of the guide rod 602 are fixedly connected to the inner top and inner bottom of the groove 5, respectively. A return spring 603 is sleeved on the outer wall of the guide rod 602. During stamping, the support plate 4 is pressed and drives the guide block 601 to slide down along the guide rod 602. The return spring 603 is compressed and stores energy. After stamping is completed, the return spring 603 releases elastic potential energy, pushes the guide block 601 to move upward, and pushes out the punched plate.

[0032] Preferred, such as Figure 2 As shown, a sliding sleeve is fixedly embedded inside the guide block 601, and the guide rod 602 is slidably inserted into the inside of the sliding sleeve. The sliding sleeve is made of copper-based graphite self-lubricating bushing. The outer wall of the sliding sleeve is press-fitted into the guide block 601 and fixed with high-temperature resistant adhesive to ensure that it will not loosen during long-term use.

[0033] Furthermore, such as Figure 2 As shown, the top end of the return spring 603 is fixedly connected to the inner top of the groove 5, and the bottom end of the return spring 603 is fixedly connected to the top of the guide block 601. A corrugated protective cover (not shown in the figure) can be provided on the outside of the return spring 603 to prevent metal debris from entering. Disc-shaped buffer pads (not shown in the figure) are installed at both ends of the return spring 603 to reduce impact noise.

[0034] Furthermore, such as Figure 1 As shown, a connector 17 is fixedly connected to the top of the top plate 3. The connector 17 facilitates connection with an external drive device (such as a hydraulic cylinder). A slide rod 18 is slidably inserted inside the top plate 3. The bottom end of the slide rod 18 passes through the top plate 3 and is fixedly connected to the top of the bottom plate 1. The sliding fit between the slide rod 18 and the top plate 3 ensures the parallelism between the top plate 3 and the bottom plate 1 during the stamping process and reduces mold wear caused by off-center loading.

[0035] Working principle: The return spring 603 is in its natural state, the guide block 601 is located at the top of the guide rod 602, and the extension spring 1103 pushes the slider 1102, causing the wedge-shaped part 13 to insert into the positioning groove 12, locking the connector 8 and the punch head 10. The plate to be processed is placed on the supporting plate 4. The external drive device (such as a hydraulic cylinder) is activated, pushing the top plate 3 downwards through the connector 17. The top plate 3 drives the mounting base 7 and the punch head 10 to press down synchronously. The multi-station punch head 10 penetrates the plate, completing the hole filling. During the process, the supporting plate 4 is pressed down, causing the guide block 601 to slide down. The return spring 603 is compressed and stores energy. After the stamping is completed, the drive device drives the top plate 3 to move upward. The return spring 603 releases its elastic potential energy, pushes the guide block 601 to move upward, ejects the plate, pulls the pull rod 14, moves the slider 1102 outward, and the wedge part 13 disengages from the positioning groove 12. The connector 8 and the punch head 10 are taken out. After replacing the new punch head, the pull rod 14 is released, and the telescopic spring 1103 pushes the slider 1102 to reset and lock the new punch head.

[0036] Although 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 embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-station synchronous punching die, comprising a base plate (1), characterized in that: It also includes a top plate (3), a lower mold base (2), a support hole plate (4), a groove (5), a mounting base (7), a connector (8), a connecting block (9), and a punch head (10). The lower mold base (2) is fixedly installed on the top of the base plate (1). The support hole plate (4) is located inside the lower mold base (2). The groove (5) is opened on the inner wall of the lower mold base (2). The groove (5) is provided with a linkage component (6) that cooperates with the support hole plate (4) to assist in demolding. The mounting base (7) is fixedly connected to the bottom of the top plate (3). The connector (8) is inserted into the inside of the mounting base (7). The connecting block (9) is fixedly connected to the bottom of the connector (8). The punch head (10) is fixedly installed on the bottom of the connecting block (9). The two side walls of the mounting base (7) are respectively provided with clamping components (11) for quick assembly and disassembly of the connector (8).

2. The multi-station synchronous punching die according to claim 1, characterized in that: The clamping assembly (11) includes a positioning shell (1101), which is fixedly installed on one side wall of the mounting base (7). A slider (1102) is slidably inserted into the interior of the positioning shell (1101). One end of the slider (1102) passes through the mounting base (7) and is inserted into the interior of the connector (8). The other end of the slider (1102) is fixedly connected to a telescopic spring (1103), and one end of the telescopic spring (1103) is fixedly connected to one side inner wall of the positioning shell (1101).

3. The multi-station synchronous punching die according to claim 2, characterized in that: The connector (8) has positioning grooves (12) on both sides of its sidewalls. One end of the slider (1102) is provided with a wedge-shaped part (13) that matches the positioning groove (12). The wedge-shaped part (13) is inserted into the inside of the positioning groove (12).

4. The multi-station synchronous punching die according to claim 3, characterized in that: A pull rod (14) is slidably inserted into one side wall of the positioning shell (1101). One end of the pull rod (14) passes through the positioning shell (1101) and is fixedly connected to one end of the slider (1102). The telescopic spring (1103) is movably sleeved on the outer wall of the pull rod (14).

5. The multi-station synchronous punching die according to claim 1, characterized in that: The mounting base (7) has an internal mounting groove (15) that is compatible with the connector (8), and the connector (8) is slidably inserted into the interior of the mounting groove (15).

6. The multi-station synchronous punching die according to claim 5, characterized in that: The bottom of the mounting base (7) is provided with a through groove (16), which is connected to the interior of the mounting groove (15), and the connecting block (9) is inserted into the interior of the through groove (16).

7. The multi-station synchronous punching die according to claim 1, characterized in that: The linkage component (6) includes a guide block (601), which is fixedly connected to one side wall of the support plate (4). A guide rod (602) is inserted inside the guide block (601). The top and bottom ends of the guide rod (602) are fixedly connected to the inner top and inner bottom of the groove (5), respectively. A reset spring (603) is sleeved on the outer wall of the guide rod (602).

8. The multi-station synchronous punching die according to claim 7, characterized in that: The guide block (601) is fixedly fitted with a sliding sleeve, and the guide rod (602) is slidably inserted into the inside of the sliding sleeve.

9. The multi-station synchronous punching die according to claim 8, characterized in that: The top end of the reset spring (603) is fixedly connected to the inner top of the groove (5), and the bottom end of the reset spring (603) is fixedly connected to the top of the guide block (601).

10. The multi-station synchronous punching die according to claim 1, characterized in that: The top of the top plate (3) is fixedly connected to a connector (17), and a slide rod (18) is slidably inserted into the inside of the top plate (3). The bottom end of the slide rod (18) passes through the top plate (3) and is fixedly connected to the top of the bottom plate (1).

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