Inside-to-outside punching die notching mechanism

Abstract

A punching die notching mechanism from inside to outside comprises an upper die base and a lower die base, a lower die part profiling female die insert is installed on the lower die base, notching female die inserts are installed on the portions, on the two sides of the lower die part profiling female die insert, of the lower die base, and the notching female die inserts are installed on the lower die base through notching female die insert fixing bases. An upper die pressing block is installed on the upper die base, notching male die inserts are installed on the two sides of the upper die pressing block, the notching male die inserts are installed on the upper die pressing block through notching male die insert wedge sliding blocks and notching male die insert wedge sliding block bases, and the upper die pressing block is installed on the upper die base through upper die pressing elastic elements. Notching male die insert wedge driving blocks are further installed on the portions, on the two sides of the upper die pressing block, of the upper die base, and the notching male die insert wedge driving blocks are fixedly installed on the upper die base. According to the mechanism, notch punching can be achieved through outward punching from the interior of a punching part, the die strength can be guaranteed, and meanwhile waste can be conveniently discharged from inside to outside.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to a part stamping processing technology, in particular to a stamping die cutting mechanism from inside to outside. Background Art

[0002] Stamping is a common method for processing parts. In the stamping process of some parts, the incision position is very close to the part itself. In the prior art, the stamping direction is from outside to inside, so there are the following disadvantages:

[0003] 1. Due to the poor strength of the die edge, the die insert is easily damaged during punching;

[0004] 2. Waste is not visible and is easily stuck inside the die insert;

[0005] Traditional stamping dies cannot overcome the above shortcomings. Summary of the invention

[0006] The technical problem to be solved by the utility model is to address the deficiencies of the prior art and provide a punching die cutting mechanism which can punch outward from the inside of a stamped part to achieve a notch, thereby helping to ensure the strength of the die and facilitating the discharge of waste from the inside to the outside.

[0007] The technical problem to be solved by the utility model is achieved through the following technical scheme: a stamping die cutting mechanism from inside to outside, including an upper die base and a lower die base, a lower die part profiling die insert is installed on the lower die base, cutting die inserts are installed on the lower die base on both sides of the lower die part profiling die insert, and the cutting die insert is installed on the lower die base through a cutting die insert fixing base; an upper die pressing block is installed on the upper die base, and cutting punch inserts are installed on both sides of the upper die pressing block, the cutting punch insert is installed on the upper die pressing block through a cutting punch insert wedge slider and a cutting punch insert wedge slider base, the upper die pressing block is installed on the upper die base through an upper die pressing elastic element, and cutting punch insert wedge driving blocks are also installed on the upper die base on both sides of the upper die pressing block, and the cutting punch insert wedge driving blocks are fixedly installed on the upper die base.

[0008] Furthermore, a first inclined surface is arranged on the side surface of the inclined wedge sliding block of the cutting punch insert, and a second inclined surface matching the first inclined surface is arranged on the side surface of the inclined wedge driving block of the cutting punch insert.

[0009] Furthermore, a third inclined surface cooperating with the punched waste is arranged on the side surface of the fixed base of the cutting die insert.

[0010] Furthermore, the upper die pressing material elastic element is a nitrogen spring, one end of the nitrogen spring is fixedly connected to the upper die base, and the other end of the nitrogen spring is fixedly connected to the upper die pressing material block.

[0011] Furthermore, a guide mechanism is installed between the upper die base and the lower die base.

[0012] Compared with the prior art, the utility model provides a punching die notching mechanism from inside to outside, which can punch outward from the inside of the punched part to achieve the punching notch. While solving the strength of the die, it also realizes the discharge of waste from the inside to the outside, so that the safety of the die is guaranteed, thereby meeting the batch manufacturing of punching notches of parts. The mechanism can increase the strength of the die, thereby extending the service life of the die, and can reduce the frequency and cost of subsequent die maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the drawings and embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] Reference Figure 1 , a stamping die cutting mechanism from inside to outside, used to be installed on an external stamping die for use, the stamping die includes an upper die, a lower die and a press for driving the upper die to move up and down, the mechanism includes an upper die seat 9 and a lower die seat 10, the upper die seat 9 is used as a supporting structure for the entire upper die assembly, during the stamping process, the upper die seat 9 is installed on the upper die, and can move up and down under the drive of the press, driving the upper die assembly to complete the stamping action; the lower die seat 10 is used to be installed on the lower die as a stable foundation for the lower die assembly, and at the same time facilitates the placement of the stamping parts 11. During stamping, the lower die seat 10 generally remains stationary to provide a stable support surface for the stamping process;

[0016] Specifically, a lower die part profiling die insert 3 is installed on the lower die base 10, which is precisely designed according to the shape of the part to be processed and is used to realize the reliable placement of the stamping part 11 during the stamping process. A cutting die insert 1 is installed on the lower die base 10 on both sides of the lower die part profiling die insert 3. The cutting die insert 1 is installed on the lower die base 10 through a cutting die insert fixing base 2 to cooperate with the cutting punching of subsequent parts. The setting of the cutting die insert fixing base 2 is used to ensure the stable installation of the cutting die insert 1.

[0017] An upper die pressing block 5 is installed on the upper die seat 9, and cutting punch inserts 6 cooperating with the cutting die insert 1 are installed on both sides of the upper die pressing block 5. The cutting punch insert 6 is installed on the upper die pressing block 5 through the cutting punch insert wedge slider 7 and the cutting punch insert wedge slider base 8. The cutting punch insert wedge slider base 8 is fixedly installed on the upper die pressing block 5, and the cutting punch insert wedge slider 7 is slidably installed on the cutting punch insert wedge slider base 8. The cutting punch insert 6 is fixedly installed on the cutting punch insert wedge slider 7, which is convenient for lateral relative movement with the upper die pressing block 5. The material block 5 is installed on the upper die seat 9 through the upper die pressing material elastic element 12. The upper die seat 9 on both sides of the upper die pressing material block 5 is also equipped with a cutting punch insert wedge driving block 4 for cooperating with the cutting punch insert 6. The cutting punch insert wedge driving block 4 is fixedly installed on the upper die seat 9. A moving gap cooperating with the upper die pressing material block 5 is reserved between the cutting punch insert wedge driving blocks 4, so that the subsequent cutting punch insert wedge driving blocks 4 and the upper die pressing material block 5 can be relatively moved. Then, the cutting punch insert 6 can be driven to move by the cutting punch insert wedge slider 7 to perform a punching operation on the stamping part 11.

[0018] The cutting punch insert 6 is installed on both sides of the upper die pressing material block 5, and is a key component for completing the cutting operation. The cutting punch insert wedge slider 7 and the cutting punch insert wedge slider base 8 provide guidance and support for the cutting punch insert 6 to ensure its smooth movement. At the same time, the design of the cutting punch insert wedge slider 7 enables the cutting punch insert 6 to move along a predetermined trajectory during the stamping process to ensure the punching effect; the upper die pressing material elastic element 12 can play the role of elastic support for the upper die pressing material block 5, which is convenient for pressing and fixing the stamping part 11 downward, and is convenient for the cutting punch insert wedge driving block 4 to cooperate with the cutting punch insert 6 to realize the horizontal lateral movement of the cutting punch insert 6, thereby completing the punching from the inside of the stamping part 11 to the outside to realize the punching notch;

[0019] Preferably, the upper die pressing material elastic element 12 is a nitrogen spring, one end of the nitrogen spring is fixedly connected to the upper die base 9, and the other end of the nitrogen spring is fixedly connected to the upper die pressing material block 5;

[0020] In order to better achieve the coordination between the cutting punch insert 6 and the cutting punch insert wedge driving block 4, a first inclined surface is arranged on the side surface of the cutting punch insert wedge sliding block 7, and a second inclined surface cooperating with the first inclined surface is arranged on the side surface of the cutting punch insert wedge driving block 4. The driving force is transmitted through the interaction between the second inclined surface and the first inclined surface, which facilitates the control of the moving trajectory and speed of the cutting punch insert 6, so as to realize the depth adjustment and precise control of the cutting through the inclined wedge principle.

[0021] In order to facilitate the outward discharge of punching waste, a third inclined surface matching the punching waste is provided on the side surface of the fixed base 2 of the cutting die insert, so that the punching waste can be discharged from the inside to the outside along the third inclined surface, thereby optimizing the discharge path of the punching waste and reducing the jamming phenomenon.

[0022] In actual use, a guide mechanism is also installed between the upper die base 9 and the lower die base 10 to ensure the precise guidance of the upper die assembly during the stamping process, prevent deviation or shaking, and improve the cutting accuracy and die life; preferably, the guide mechanism can adopt a guide pin and guide sleeve structure, which has good guiding accuracy and wear resistance.

[0023] The specific use process of the punching die cutting mechanism from inside to outside provided by the utility model is as follows:

[0024] 1. Preparation

[0025] Mould installation and inspection:

[0026] Install the upper die base and the lower die base to the corresponding positions of the stamping die respectively, and ensure that they are firmly installed;

[0027] Check whether all parts are installed in place, especially the key parts such as the cutout punch insert, the cutout die insert and its fixed base, the upper die block, the cylinder, etc.

[0028] Check whether the guide mechanism is smooth and without any jamming;

[0029] Materials preparation:

[0030] Place the stamping parts on the profiling die insert of the lower die part and ensure that they are positioned accurately and fixed securely;

[0031] 2. Preparation before stamping

[0032] Pressing:

[0033] Start the press and drive the upper die seat down until the upper die block contacts the stamped part, press it down and fix it, and at the same time, the cutting punch insert moves with the upper die block to the inside of the edge of the stamped part. This step is to prevent the material from moving or deforming during the stamping process and ensure the cutting accuracy;

[0034] Check the closing height:

[0035] Adjust the closing height of the press to ensure that the gap between the upper die seat and the lower die seat is moderate, neither too large nor too small, so as not to affect the quality of the cut;

[0036] 3. Stamping stage

[0037] Stamping starts:

[0038] The upper die seat continues to move downward, and the upper die pressing block no longer moves downward under the action of the nitrogen spring, but always presses down and fixes the stamped part. At the same time, the notch punch insert moves horizontally under the action of the notch punch insert wedge driving block through the cooperation of the notch punch insert wedge slider and the notch punch insert wedge slider base, and then contacts the edge of the stamped part. Then, with the cooperation of the notch die insert, the notch is punched from the inside of the stamped part to the outside to achieve the punching notch.

[0039] During this process, the first bevel and the second bevel cooperate with each other to guide the cutting process and ensure that the shape of the cutting is accurate and the edge is smooth;

[0040] Waste discharge:

[0041] The waste generated during the cutting process will be discharged smoothly along the third slope of the fixed base of the cutting die insert to avoid material jamming;

[0042] 4. Post-processing

[0043] The upper die block is lifted:

[0044] After the stamping is completed, the upper die seat drives the upper die block to lift up and release the stamped parts;

[0045] Remove stamped parts:

[0046] Remove the stamped parts with completed cuts from the lower die base for subsequent processing or inspection;

[0047] Mold reset:

[0048] After the press is fully reset, the entire die mechanism returns to its initial state, ready for the next stamping operation;

[0049] 5. Notes

[0050] During the entire use process, you should always pay attention to the working status of the mold. If there is any abnormality, stop the machine for inspection in time;

[0051] Regularly perform maintenance on the mold, such as cleaning waste, lubricating parts, etc., to extend the mold life and improve production efficiency.

[0052] Operate in strict accordance with operating procedures to ensure personal safety and equipment safety.

Claims

1. A punching die cutting mechanism from inside to outside, characterized in that: It includes an upper die base and a lower die base, a lower die part profiling die insert is installed on the lower die base, cutting die inserts are installed on the lower die base on both sides of the lower die part profiling die insert, and the cutting die insert is installed on the lower die base through a cutting die insert fixing base; an upper die pressing block is installed on the upper die base, cutting punch inserts are installed on both sides of the upper die pressing block, the cutting punch insert is installed on the upper die pressing block through a cutting punch insert wedge slider and a cutting punch insert wedge slider base, the upper die pressing block is installed on the upper die base through an upper die pressing elastic element, and cutting punch insert wedge driving blocks are also installed on the upper die base on both sides of the upper die pressing block, and the cutting punch insert wedge driving blocks are fixedly installed on the upper die base.

2. The punching die cutting mechanism from inside to outside according to claim 1, characterized in that: A first inclined surface is arranged on the side surface of the inclined wedge sliding block of the cutting punch insert, and a second inclined surface matching the first inclined surface is arranged on the side surface of the inclined wedge driving block of the cutting punch insert.

3. The punching die cutting mechanism from inside to outside according to claim 1 or 2, characterized in that: A third inclined surface cooperating with the punching waste is arranged on the side surface of the fixed base of the cutting die insert.

4. The punching die cutting mechanism from inside to outside according to claim 1, characterized in that: The upper die pressing material elastic element is a nitrogen spring, one end of the nitrogen spring is fixedly connected to the upper die base, and the other end of the nitrogen spring is fixedly connected to the upper die pressing material block.

5. The punching die cutting mechanism from inside to outside according to claim 1, characterized in that: A guide mechanism is also installed between the upper die base and the lower die base.

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