Die head replacement structure for a punch press

Abstract

The utility model relates to a die head replacement structure of punch die belongs to punch die technical field, including punch die, die head, mounting seat and frame, the mounting seat outside is provided with the installation replacement subassembly for quick stable positioning and replacement die head, the installation replacement subassembly includes the positioning plug -in rod fixedly connected in the top of die head, the bottom of mounting seat is opened and has the positioning insertion hole, the surrounding fixed mounting of die head has the buckle, the surrounding fixed mounting of mounting seat has the clamping block, the inside insertion of through -hole has fixed bolt, the outer surface screw thread connection of fixed bolt has fixed nut. The die head replacement structure of punch die, through setting up installation replacement subassembly, will positioning plug -in rod insert into positioning insertion hole, can carry out quick positioning, will die head completely fixed to the bottom of mounting seat, guarantees the stability of die head, pulls down die head from the bottom of mounting seat to carry out quick replacement, and it is higher to the replacement efficiency of die head.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, specifically to a die head replacement structure for a stamping die. Background Technology

[0002] Stamping dies are specialized tools used in stamping processes. They apply pressure to sheet metal under the action of a press, causing it to separate or plastically deform, thereby obtaining workpieces of the desired shape and size.

[0003] In the stamping process of stamping dies, a die head replacement structure is needed to replace worn die heads in a timely manner. Chinese utility model patent with announcement number CN222551887U discloses a stamping die with a replaceable die head, including: a base body, a screw, a fixing component, and an upper platform. The base body has lower support rods at the four corners of its upper end. This utility model, by adding a base body, screw, fixing component, lower die head, upper platform body, and upper die head, allows the user to fit the upper end of the upper die head into the mating groove, and uses connecting studs to connect and fix the upper die head to the upper platform body. Starting the fixing motor can drive the screw to rotate, causing the screw to move left and right under the engagement of the screw hole. After the mating block at the lower end of the lower die head is inserted into the mating groove, the fixing block and the fixing groove can be mated together. Both the upper and lower die heads can be disassembled and replaced. By adding a base body, upper platform body, and connecting component, the base body and upper platform body can be disassembled and assembled.

[0004] The upper and lower die heads of this utility model are detachable, allowing for replacement of both. However, existing stamping dies use a fitting method to fix the die heads, which results in poor stability and makes it impossible to quickly position the die heads. This leads to low efficiency in die head replacement and fails to meet usage requirements. Therefore, a die head replacement structure for stamping dies is proposed to solve the aforementioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a die head replacement structure for stamping dies, which has the advantages of rapid and stable positioning and die head replacement, thus solving the problems mentioned in the background art.

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

[0007] A die head replacement structure for a stamping die includes a stamping die, a die head, a mounting base, and a frame. The mounting base is externally provided with a mounting and replacement component for quick and stable positioning and die head replacement.

[0008] The installation and replacement assembly includes a positioning rod fixedly connected to the top of the mold head, a positioning hole opened at the bottom of the mounting base, a buckle fixedly installed around the mold head, a locking block fixedly installed around the mounting base, and through holes opened on the outer sides of both the mounting base and the positioning rod. A fixing bolt is inserted into the inner side of the through hole, and a fixing nut is threaded onto the outer surface of the fixing bolt.

[0009] Furthermore, a hydraulic cylinder is fixedly connected to the top of the frame, and a lower pressure plate is fixedly connected to the output shaft of the hydraulic cylinder.

[0010] Furthermore, the mounting base is fixedly connected to the bottom of the lower pressure plate, and a limit post is fixedly connected to the inner side of the frame.

[0011] Furthermore, the lower pressure plate is slidably connected to the limiting post, and the outer diameter of the mold head is the same as that of the mounting base.

[0012] Furthermore, a base platform is fixedly connected to the bottom of the frame, and two electric push rods are fixedly connected to the inner side of the base platform.

[0013] Furthermore, the output shaft of the electric push rod is fixedly connected to a clamping arm, and a clamping plate is fixedly connected to the inner side of the clamping arm.

[0014] Furthermore, the clamping arm passes through the base and extends to its outside, and a rubber pressure block is fixedly connected to the outside of the clamping plate.

[0015] Furthermore, a baffle is fixedly installed on the outer side of the base, a heat dissipation vent is provided on the outer side of the baffle, and a dustproof net is fixedly connected to the inner side of the heat dissipation vent.

[0016] Compared with the prior art, this utility model provides a die head replacement structure for stamping dies, which has the following beneficial effects:

[0017] 1. The die head replacement structure of this stamping die, through the setting of installation and replacement components, allows for quick positioning when the die head needs to be installed. The positioning rod is inserted into the positioning hole for quick positioning. Then, the clip is engaged with the outer surface of the clip block for simple limiting. Next, the fixing bolt is inserted into the through hole, and finally, the fixing nut is tightened onto the outer surface of the fixing bolt to completely fix the die head to the bottom of the mounting base, ensuring the stability of the die head. Furthermore, when the die head needs to be replaced, the fixing bolt is unscrewed, the fixing nut is pulled out, and the clip and clip block are released, allowing the die head to be removed from the bottom of the mounting base for quick replacement. This design offers high efficiency for die head replacement.

[0018] 2. The die head replacement structure of this stamping die, through the cooperation of electric push rods, clamping arms, clamping plates and rubber pressure blocks, two electric push rods can drive two clamping arms to move closer to each other, so that the two clamping plates and rubber pressure blocks are pressed against the left and right sides of the stamping die for clamping and positioning, ensuring the stability of the stamping die during stamping. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0020] Figure 2 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0021] Figure 3 This is a front view of the structure of this utility model;

[0022] Figure 4 This is a three-dimensional structural view of the frame and base of this utility model.

[0023] In the diagram: 1. Stamping die, 2. Die head, 3. Mounting base, 4. Positioning rod, 5. Positioning hole, 6. Buckle, 7. Block, 8. Through hole, 9. Fixing bolt, 10. Fixing nut, 11. Frame, 12. Hydraulic cylinder, 13. Lower pressure plate, 14. Limiting post, 15. Base platform, 16. Electric push rod, 17. Clamping arm, 18. Clamping plate, 19. Rubber pressure block, 20. Baffle, 21. Baffle, 22. Dustproof net. 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 to 4The die head replacement structure of a stamping die in this embodiment includes a stamping die 1, a die head 2, a mounting base 3 and a frame 11. The mounting base 3 is provided with a mounting and replacement component for quick and stable positioning and replacement of the die head 2. The installation and replacement components include a positioning rod 4 fixedly connected to the top of the mold head 2, a positioning hole 5 at the bottom of the mounting base 3, a buckle 6 fixedly installed around the mold head 2, and a locking block 7 fixedly installed around the mounting base 3. Both the mounting base 3 and the positioning rod 4 have through holes 8 on their outer sides. A fixing bolt 9 is inserted into the inner side of the through hole 8, and a fixing nut 10 is threaded onto the outer surface of the fixing bolt 9. When the mold head 2 needs to be installed, the positioning rod 4 is inserted into the positioning hole 5 for quick positioning. Then, the buckle 6 is locked onto the outer surface of the locking block 7 for simple positioning. Next, the fixing bolt 9 is inserted into the through hole 8. Finally, the fixing nut 10 is tightened onto the outer surface of the fixing bolt 9 to completely fix the mold head 2 to the bottom of the mounting base 3, ensuring the stability of the mold head 2.

[0026] In addition, when it is necessary to replace the mold head 2, unscrew the fixing bolt 9, then pull out the fixing nut 10, and release the engagement between the clip 6 and the clip 7. The mold head 2 can then be pulled out from the bottom of the mounting base 3 for quick replacement, which is highly efficient for replacing the mold head 2.

[0027] In this embodiment, a hydraulic cylinder 12 is fixedly connected to the top of the frame 11, and a lower pressure plate 13 is fixedly connected to the output shaft of the hydraulic cylinder 12. The mounting base 3 is fixedly connected to the bottom of the lower pressure plate 13, and a limit post 14 is fixedly connected to the inner side of the frame 11. The hydraulic cylinder 12 can drive the die head 2 to move vertically downward through the lower pressure plate 13, so that the die head 2 can cooperate with the stamping die 1 to stamp the workpiece.

[0028] It should be noted that the lower pressure plate 13 is slidably connected to the limiting post 14, and the outer diameter of the mold head 2 and the mounting base 3 are the same. The limiting post 14 plays the role of lifting and limiting the lower pressure plate 13, thereby improving the movement stability of the lower pressure plate 13.

[0029] In this embodiment, a base platform 15 is fixedly connected to the bottom of the frame 11. Two electric push rods 16 are fixedly connected to the inner side of the base platform 15. A clamping arm 17 is fixedly connected to the output shaft of the electric push rod 16. A clamping plate 18 is fixedly connected to the inner side of the clamping arm 17. The clamping arm 17 passes through the base platform 15 and extends to its outside. A rubber pressure block 19 is fixedly connected to the outer side of the clamping plate 18. Through the cooperation of the electric push rod 16, the clamping arm 17, the clamping plate 18 and the rubber pressure block 19, the two electric push rods 16 can drive the two clamping arms 17 to move closer to each other. Thus, the two clamping plates 18 and the rubber pressure block 19 are pressed against the left and right sides of the stamping die 1 for clamping and positioning, ensuring the stability of the stamping die 1 during stamping.

[0030] Specifically, a baffle 20 is fixedly installed on the outer side of the base 15, and a heat dissipation vent 21 is opened on the outer side of the baffle 20. A dustproof net 22 is fixedly connected to the inner side of the heat dissipation vent 21. The baffle 20 plays the role of a shielding structure, and the heat dissipation vent 21 achieves the effect of natural ventilation and heat dissipation.

[0031] It should be noted that this application can use a synchronization controller or other synchronization device to ensure that the output shafts of the two electric push rods 16 extend and retract simultaneously, thereby achieving synchronous operation. These synchronization devices are common and mature in the field of electric control, so they will not be described in detail in the specific embodiments.

[0032] The working principle of the above embodiments is as follows:

[0033] When using the mold head 2, insert the positioning rod 4 into the positioning hole 5 for quick positioning. Then, snap the buckle 6 onto the outer surface of the clip 7 to lock them in place for simple positioning. Next, insert the fixing bolt 9 into the through hole 8. Finally, tighten the fixing nut 10 onto the outer surface of the fixing bolt 9 to completely fix the mold head 2 to the bottom of the mounting base 3, ensuring the stability of the mold head 2. When the mold head 2 needs to be replaced, unscrew the fixing bolt 9, pull out the fixing nut 10, and release the buckle 6 from the clip 7. The mold head 2 can then be pulled out from the bottom of the mounting base 3 for quick replacement.

[0034] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0035] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] 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 die head replacement structure for a stamping die, comprising a stamping die (1), a die head (2), a mounting base (3), and a frame (11), characterized in that: The mounting base (3) is externally provided with mounting and replacement components for quick and stable positioning and replacement of the mold head (2); The installation and replacement components include a positioning rod (4) fixedly connected to the top of the mold head (2), a positioning hole (5) is provided at the bottom of the mounting base (3), a buckle (6) is fixedly installed around the mold head (2), a locking block (7) is fixedly installed around the mounting base (3), and through holes (8) are provided on the outer sides of both the mounting base (3) and the positioning rod (4). A fixing bolt (9) is inserted into the inner side of the through hole (8), and a fixing nut (10) is threaded onto the outer surface of the fixing bolt (9).

2. The die head replacement structure for a stamping die according to claim 1, characterized in that: A hydraulic cylinder (12) is fixedly connected to the top of the frame (11), and a lower pressure plate (13) is fixedly connected to the output shaft of the hydraulic cylinder (12).

3. The die head replacement structure for a stamping die according to claim 2, characterized in that: The mounting base (3) is fixedly connected to the bottom of the lower pressure plate (13), and the inner side of the frame (11) is fixedly connected to the limit post (14).

4. The die head replacement structure for a stamping die according to claim 3, characterized in that: The lower pressure plate (13) is slidably connected to the limiting post (14), and the outer diameter of the mold head (2) is the same as that of the mounting base (3).

5. The die head replacement structure for a stamping die according to claim 1, characterized in that: The bottom of the frame (11) is fixedly connected to a base platform (15), and two electric push rods (16) are fixedly connected to the inner side of the base platform (15).

6. The die head replacement structure for a stamping die according to claim 5, characterized in that: The output shaft of the electric push rod (16) is fixedly connected to a clamping arm (17), and a clamping plate (18) is fixedly connected to the inner side of the clamping arm (17).

7. The die head replacement structure for a stamping die according to claim 6, characterized in that: The clamping arm (17) passes through the base (15) and extends to its outside, and a rubber pressure block (19) is fixedly connected to the outside of the clamping plate (18).

8. The die head replacement structure for a stamping die according to claim 7, characterized in that: A baffle (20) is fixedly installed on the outer side of the base (15), and a heat dissipation vent (21) is opened on the outer side of the baffle (20). A dustproof net (22) is fixedly connected to the inner side of the heat dissipation vent (21).

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