Stretching punching die

Abstract

The utility model relates to a stretching punching die, which belongs to the technical field of die manufacturing and comprises a lower die holder, and the top of the lower die holder is fixedly connected with an L-shaped support plate. The punching and stretching die has the advantages that the punching punch and the stretching punch are arranged and used for punching and stretching a metal plate, the guide column is arranged between the upper die base and the lower die base and used for ensuring the alignment precision of the stretching punch and the punching punch, synchronous stretching and punching are achieved, the die structure is simplified, and the production efficiency is improved. In order to further simplify the operation process, a linkage mechanism is arranged between the stretching punch and the punching punch, so that after the stretching operation is completed, the punching punch can automatically carry out punching operation, the production efficiency is further improved, and in order to reduce the maintenance cost, the technology adopts a modular design idea; and the key components such as the stretching punch and the punching punch are designed to be detachable, so that maintenance and replacement are convenient, and the service life of the die is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of die manufacturing, in particular to a stretching and punching die. Background Art

[0002] A die is various molds and tools used in industrial production for injection molding, blow molding, extrusion, die casting, forging, smelting, stamping, etc. to obtain the required products. In short, a die is a tool for making shaped articles. This tool is composed of various parts, and different dies are composed of different parts. It mainly realizes the processing of the article's outer shape through the change of the physical state of the formed material and is known as the "mother of industry".

[0003] Currently, in order to synchronize stretching and punching operations, the conventional method is to use two sets of independent dies for stretching and punching respectively, or to design a complex composite die structure. However, the former requires frequent die replacement, affecting production efficiency; the latter is difficult to maintain due to its complex structure, and the processing accuracy is difficult to guarantee, seriously restricting its wide application in industrial production. Summary of the Utility Model

[0004] In view of the problems existing in the prior art: Currently, in order to synchronize stretching and punching operations, the conventional method is to use two sets of independent dies for stretching and punching respectively, or to design a complex composite die structure. However, the former requires frequent die replacement, affecting production efficiency; the latter is difficult to maintain due to its complex structure, and the processing accuracy is difficult to guarantee, seriously restricting its wide application in industrial production, the main purpose of the present utility model is to provide a stretching and punching die.

[0005] The technical solution of the present utility model is as follows: A stretching and punching die includes a lower die base. An L-shaped support plate is fixedly connected to the top of the lower die base. An upper die base is arranged at the bottom of the L-shaped support plate. Guide columns are fixedly connected to both ends of the bottom of the upper die base. A guide seat is fixedly connected to the top of the lower die base. A guide groove for cooperating with the guide columns is formed inside the guide seat. A first punch seat is arranged at the bottom end of the upper die base. A stretching punch is fixedly connected to the bottom of the first punch seat. A second punch seat is arranged at the top of the lower die base. A punching punch is fixedly connected to the top of the second punch seat. A detachable mechanism is arranged at the bottom of the second punch seat. A replacement mechanism is arranged inside the upper die base.

[0006] By adopting the above technical solution, through the arrangement of the punching punch and the stretching punch, it is used for punching and stretching operations on metal plates. The guide columns are arranged between the upper die base and the lower die base to ensure the alignment accuracy of the stretching punch and the punching punch. Through the above structure, the synchronous operation of stretching and punching is realized, the die structure is simplified, and the processing efficiency is improved.

[0007] As a preferred embodiment, the detachable mechanism includes a clamping groove opened inside the upper die base. Screws are threadedly connected to both ends inside the upper die base. Clamping plates are slidably connected to both ends inside the clamping groove. One end of each screw extends into the clamping groove and is rotatably connected to the corresponding clamping plate. Two clamping posts are fixedly connected to one side of each of the two clamping plates that are close to each other. A clamping hole adapted to cooperate with the clamping posts is opened inside the first punch holder, and the clamping holes are respectively engaged with the corresponding clamping posts.

[0008] By adopting the above technical solution, by turning the screws, the clamping posts can be inserted into the corresponding clamping holes, so that the first punch holder can be fixedly installed in the clamping groove, thereby realizing the quick installation of the punching punch. At the same time, the detachable design facilitates the disassembly of the damaged punching punch or the replacement operation of the punching punch according to the punching size of the metal plate.

[0009] As a preferred embodiment, the replacement mechanism includes an installation disk arranged at the top end of the lower die base. The top end of the installation disk is provided with an external thread. A limiting member is arranged at the top of the punching punch. An internal thread is arranged inside the limiting member. The limiting member is threadedly connected to the installation disk. The top end of the installation disk abuts against the second punch holder, and the punching punch penetrates through the inside of the limiting member.

[0010] By adopting the above technical solution, when the punching punch needs to be installed, the punching punch can be inserted into the limiting member, and the top end of the installation disk can be tightened with the limiting member, and it can be replaced according to actual needs to meet the processing requirements of metal plates with different shapes and sizes.

[0011] As a preferred embodiment, a linkage mechanism is arranged at the top end of the lower die base. The linkage mechanism includes a pressure sensor fixedly installed on the inner wall of the guiding groove, and a controller is fixedly installed outside the lower die base.

[0012] By adopting the above technical solution, by controlling the second cylinder to start through the controller, after the stretching operation is completed, the punching punch can automatically perform the punching operation without manual intervention.

[0013] As a preferred embodiment, a first cylinder is fixedly installed at the top of the L-shaped support plate. The output shaft of the first cylinder penetrates through the inside of the L-shaped support plate and is fixedly connected to the upper die base. A second cylinder is fixedly installed at the bottom of the lower die base. Fixing bolts are arranged around the inside of the installation disk. The output shaft of the second cylinder penetrates through the inside of the lower die base, and the output shaft of the second cylinder is connected to the installation disk through the fixing bolts.

[0014] By adopting the above technical solution, through the arrangement of the fixing bolts, the installation disk can be installed at the top end of the output shaft of the second cylinder, so as to facilitate the punching operation.

[0015] As a preferred embodiment, arc surfaces that fit against the first punch holder are provided on one side of each of the two clamping plates, and the ends of the screw rods away from the clamping plates all extend to the outside of the upper die base and are fixedly connected with adjusting knobs.

[0016] By adopting the above technical solution, through the mutually fitting arc surfaces, the clamping plates can be made to fit against the first punch holder.

[0017] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0018] 1. In the present utility model, through the arrangement of the punching punch and the stretching punch, they are used for punching and stretching operations on the metal sheet, and the guide posts are arranged between the upper die base and the lower die base to ensure the alignment accuracy of the stretching punch and the punching punch. Through the above structure, the synchronous operation of stretching and punching is realized, the die structure is simplified, and the processing efficiency is improved. To further simplify the operation process, a linkage mechanism is arranged between the stretching punch and the punching punch, so that after the stretching operation is completed, the punching punch can automatically perform the punching operation without manual intervention, further improving the production efficiency.

[0019] 2. In the present utility model, to reduce the maintenance cost, the modular design concept is adopted in this technology. Key components such as the stretching punch and the punching punch are designed to be detachable, which is convenient for maintenance and replacement, greatly prolonging the service life of the die. The stretching punch and the punching punch can be replaced according to actual needs to adapt to the processing requirements of metal sheets with different shapes and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a stretching and punching die provided by the present utility model;

[0021] Figure 2 It is a schematic diagram of the replacement mechanism structure of a stretching and punching die provided by the present utility model;

[0022] Figure 3 It is a schematic diagram of the detachable mechanism structure of a stretching and punching die provided by the present utility model;

[0023] Figure 4 It is provided by the present utility model with a stretching and punching die Figure 2 The enlarged view of part A in.

[0024] Legend: 1. Lower die base; 2. L-shaped support plate; 3. First cylinder; 4. Drawing punch; 5. Upper die base; 6. Guide post; 7. Guide groove; 8. Pressure sensor; 9. Controller; 10. Second cylinder; 11. Punching punch; 12. Card hole; 13. Clamping plate; 14. First punch holder; 15. Screw; 16. Card column; 17. Limit piece; 18. Installation disc; 19. Second punch holder. Detailed implementation

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0026] Refer to Figures 1-4 , a drawing and punching die, including a lower die base 1, an L-shaped support plate 2 is fixedly connected to the top of the lower die base 1, an upper die base 5 is arranged at the bottom of the L-shaped support plate 2, guide posts 6 are fixedly connected to both ends of the bottom of the upper die base 5, a guide seat is fixedly connected to the top of the lower die base 1, and a guide groove 7 matching with the guide post 6 is opened inside the guide seat. A first punch holder 14 is arranged at the bottom end of the upper die base 5, a drawing punch 4 is fixedly connected to the bottom of the first punch holder 14, a second punch holder 19 is arranged at the top of the lower die base 1, a punching punch 11 is fixedly connected to the top of the second punch holder 19, a detachable mechanism is arranged at the bottom of the second punch holder 19, a replacement mechanism is arranged inside the upper die base 5, and the upper die base 5 and the lower die base 1 are arranged opposite to each other. Through the arrangement of the punching punch 11 and the drawing punch 4, it is used for punching and drawing operations on metal sheets. The guide posts 6 are arranged between the upper die base 5 and the lower die base 1 to ensure the alignment accuracy of the drawing punch 4 and the punching punch 11. Through the above structure, the synchronous operation of drawing and punching is realized, the die structure is simplified, and the processing efficiency is improved. To further simplify the operation process, a linkage mechanism is arranged between the drawing punch 4 and the punching punch 11, so that after the drawing operation is completed, the punching punch 11 can automatically perform the punching operation without manual intervention, further improving the production efficiency. To reduce the maintenance cost, the modular design concept is adopted in this technology, and key components such as the drawing punch 4 and the punching punch 11 are designed to be detachable, which is convenient for maintenance and replacement, greatly extending the service life of the die. The drawing punch 4 and the punching punch 11 can be replaced according to actual needs to meet the processing requirements of metal sheets with different shapes and sizes.

[0027] Refer to Figure 4, the detachable mechanism includes a clamping groove opened inside the upper die base 5. Screws 15 are threadedly connected to both ends inside the upper die base 5. Clamping plates 13 are slidably connected to both ends inside the clamping groove. One end of each screw 15 extends into the clamping groove and is rotatably connected to the corresponding clamping plate 13. Two clamping posts 16 are fixedly connected to one side of the two clamping plates 13 close to each other. Card holes 12 that cooperate with the clamping posts 16 are opened inside the punch head base one 14. The card holes 12 are engaged with the corresponding clamping posts 16. By turning the screws 15, the corresponding clamping plates 13 can be driven to move inside the clamping groove, so that the clamping posts 16 can be inserted into the corresponding card holes 12, and then the punch head base one 14 can be fixedly installed in the clamping groove. By making the clamping plates 13 fit against the outer side of the punch head base one 14, the contact area of the clamping plates 13 can be increased, and the clamping tightness of the clamping plates 13 can be further improved, making the punching punch 11 more stable during installation, so as to realize the rapid installation of the punching punch 11. At the same time, the detachable design facilitates the disassembly of the damaged punching punch 11 or the replacement operation of the punching punch 11 according to the punching size of the metal plate.

[0028] Refer to Figure 3 , the replacement mechanism includes a mounting disc 18 arranged at the top end of the lower die base 1. The top end of the mounting disc 18 is provided with an external thread. A limiting member 17 is arranged at the top of the punching punch 11. An internal thread is arranged inside the limiting member 17. The limiting member 17 is threadedly connected to the mounting disc 18. The top end of the mounting disc 18 abuts against the punch head base two 19. The punching punch 11 passes through the inside of the limiting member 17. When the punching punch 11 needs to be installed, the punching punch 11 can be inserted into the limiting member 17, and the top end of the mounting disc 18 can be tightened with the limiting member 17. Through the abutment of the top end of the mounting disc 18, the punch head base two 19 can be firmly installed inside the limiting member 17. It also has a detachable design and can be replaced according to actual needs to meet the processing requirements of metal plates with different shapes and sizes.

[0029] Refer to Figure 1 , a linkage mechanism is arranged at the top end of the lower die base 1. The linkage mechanism includes a pressure sensor 8 fixedly installed on the inner wall of the guide groove 7. A controller 9 is fixedly installed on the outer side of the lower die base 1. When the stretching punch 4 stretches the metal plate, it will drive the guide post 6 to move downward, and then trigger the pressure sensor 8. At this time, the pressure sensor 8 will transmit control information to the controller 9, and the controller 9 will control the cylinder two 10 to start, so that after the stretching operation is completed, the punching punch 11 can automatically perform the punching operation without manual intervention, further improving the production efficiency.

[0030] Refer to Figure 1, a cylinder 1 is fixedly installed at the top of the L-shaped support plate 2. The output shaft of the cylinder 1 penetrates through the interior of the L-shaped support plate 2 and is fixedly connected to the upper die base 5. A cylinder 2 is fixedly installed at the bottom of the lower die base 1. Fixing bolts are provided around the interior of the mounting plate 18. The output shaft of the cylinder 2 penetrates through the interior of the lower die base 1, and the output shaft of the cylinder 2 is connected to the mounting plate 18 through the fixing bolts. Through the setting of the fixing bolts, the mounting plate 18 can be installed at the top of the output shaft of the cylinder 2, and by the extension of the output shaft of the cylinder 2, the punching punch 11 can be driven to perform punching operations on the metal plate.

[0031] Refer to Figure 2 , arc surfaces that fit the first punch seat 14 are provided on the sides of the two clamping plates 13 close to each other. The ends of the screw rods 15 away from the clamping plates 13 extend to the outside of the upper die base 5 and are fixedly connected to adjusting knobs. Through the mutually fitting arc surfaces, the clamping plates 13 can be made to fit the first punch seat 14, and thus the first punch seat 14 can be more stable during installation.

[0032] Working principle: First, through the settings of the punching punch 11 and the stretching punch 4, they are used to perform punching and stretching operations on the metal plate. The guide posts 6 are arranged between the upper die base 5 and the lower die base 1 to ensure the alignment accuracy of the stretching punch 4 and the punching punch 11. Through this structure, synchronous operations of stretching and punching are achieved, simplifying the die structure and improving the processing efficiency. To further simplify the operation process, when the stretching punch 4 performs stretching operations on the metal plate, it will drive the guide posts 6 to move downward, and then trigger the pressure sensor 8. At this time, the pressure sensor 8 will transmit control information to the controller 9, and the controller 9 controls the cylinder 2 to start, so that after the stretching operation is completed, the punching punch 11 can automatically perform punching operations without manual intervention, further improving the production efficiency;

[0033] Subsequently, by turning the screw rod 15, the corresponding clamping plate 13 can be driven to move in the card slot, so that the clamping post 16 can be inserted into the corresponding card hole 12, and then the punch head seat one 14 can be fixedly installed in the card slot. By making the clamping plate 13 fit against the outer side of the punch head seat one 14, the contact area of the clamping plate 13 can be increased, and the clamping tightness of the clamping plate 13 can be further improved, making the punching punch 11 more stable during installation, so as to realize the quick installation and disassembly of the punching punch 11. At the same time, the punching punch 11 is inserted into the limiting member 17, and the top end of the mounting disc 18 is tightened with the limiting member 17. Through the resistance of the top end of the mounting disc 18, the punch head seat two 19 can be firmly installed inside the limiting member 17, which also has a detachable design. To reduce the maintenance cost, the present technology adopts the modular design concept, and designs key components such as the stretching punch 4 and the punching punch 11 as detachable, which is convenient for maintenance and replacement, greatly prolongs the service life of the mold, and the stretching punch 4 and the punching punch 11 can be replaced according to actual needs to meet the processing requirements of metal plates with different shapes and sizes.

[0034] The above are only the preferred embodiments of the present application and are not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stretch punching die, comprising a lower die base (1), characterized in that: The top of the lower die base (1) is fixedly connected to an L-shaped support plate (2), the bottom of the L-shaped support plate (2) is provided with an upper die base (5), both ends of the bottom of the upper die base (5) are fixedly connected to guide columns (6), the top of the lower die base (1) is fixedly connected to a guide base, the inside of the guide base is provided with a guide groove (7) for use with the guide column (6), the bottom end of the upper die base (5) is provided with a punch base 1 (14), the bottom of the punch base 1 (14) is fixedly connected to a stretching punch (4), the top of the lower die base (1) is provided with a punch base 2 (19), the top of the punch base 2 (19) is fixedly connected to a punching punch (11), the bottom of the punch base 2 (19) is provided with a detachable mechanism, and the inside of the upper die base (5) is provided with a replacement mechanism.

2. A stretch punching die according to claim 1, characterized in that: The detachable mechanism comprises a slot provided inside the upper die seat (5), both ends of the upper die seat (5) being threadedly connected with screw rods (15), both ends of the slot being slidably connected with clamping plates (13), one end of the screw rods (15) extending into the slot and being rotatably connected with the corresponding clamping plates (13), two clamping columns (16) being fixedly connected to the adjacent sides of the two clamping plates (13), a clamping hole (12) for use with the clamping column (16) being provided inside the punch seat (14), and the clamping holes (12) being engaged with the corresponding clamping columns (16).

3. A stretch punching die according to claim 1, characterized in that: The replacement mechanism comprises a mounting plate (18) arranged at the top end of the lower die base (1), the top end of the mounting plate (18) being provided with an external thread, a limiting member (17) being provided at the top end of the punching punch (11), the interior of the limiting member (17) being provided with an internal thread, the limiting member (17) being threadedly connected to the mounting plate (18), the top end of the mounting plate (18) being in conflict with the punch base 2 (19), and the punching punch (11) passing through the interior of the limiting member (17).

4. A stretch punching die according to claim 1, characterized in that: A linkage mechanism is provided at the top end of the lower die base (1), the linkage mechanism comprising a pressure sensor (8) fixedly mounted on the inner wall of the guide groove (7), and a controller (9) is fixedly mounted on the outer side of the lower die base (1).

5. A stretch punching die according to claim 3, characterized in that: A cylinder one (3) is fixedly mounted on the top of the L-shaped support plate (2), and the output shaft of the cylinder one (3) passes through the interior of the L-shaped support plate (2) and is fixedly connected to the upper die base (5). A cylinder two (10) is fixedly mounted on the bottom of the lower die base (1), and fixing bolts are arranged around the inside of the mounting plate (18). The output shaft of the cylinder two (10) passes through the interior of the lower die base (1), and the output shaft of the cylinder two (10) is connected to the mounting plate (18) by fixing bolts.

6. A stretch punching die according to claim 2, characterized in that: The sides of the two clamping plates (13) that are close to each other are each provided with an arc surface that fits with the punch seat (14), and the ends of the screw rods (15) that are away from the clamping plates (13) extend to the outside of the upper die seat (5) and are fixedly connected with an adjusting knob.

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