A new universal shearing die structure with adjustable blanking gap

By introducing the design of drive screws and return springs in the general shear die, automatic adjustment of punching gaps is achieved, solving the problems of cumbersome operation and limited use of existing molds, and improving efficiency and applicability.

CN110788203BActive Publication Date: 2025-01-03FOSHAN CHENGYANG ZHENGDA MOLD HARDWARE PLASTIC CO LTD
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Patent Information

Application Number
CN201911319276.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-12-19
Publication Date
2025-01-03
Estimated Expiration
2039-12-19

AI Technical Summary

Technical Problem

The existing universal blanking mold with adjustable punching gap is cumbersome to operate, inefficient, and complex in structure, so it cannot be used between different machines and has a high cost.

Method used

A new universal shear mold structure with adjustable punching gap is designed, and automatic clearance adjustment is achieved through driving screws and return springs. The structure is simple and does not rely on complex electrical assistance to adapt to the use of different machines.

Benefits of technology

It realizes automatic adjustment of the punching gap, simple operation, wide application scope, reduces the cost of use, and adapts to different production environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a novel universal shearing die structure with adjustable blanking gap. The mounting seat is driven to move in the left and right directions by driving the adjusting block, and the second adjusting block moves accordingly. Since the fixed lower blade mounting seat can only move in the front-back direction, and the inclined surface on the other side of the first adjusting block and the inclined surface on the other side of the second adjusting block fit each other, the first adjusting block can only move in the front-back direction, and the lower blade mounting seat drives the lower blade to move in the front-back direction, thereby automatically adjusting the blanking gap between the upper blade and the lower blade, and the operation is simple and convenient. Moreover, the entire novel universal shearing die structure with adjustable blanking gap has a simple structure, does not require complex electrical assistance, can be adapted to different machine platforms, and has a wide range of applications.
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Description

Technical Field

[0001] The invention relates to a shearing die, in particular to a novel universal shearing die structure with adjustable blanking gap. Background Art

[0002] In the production process of stamping sheet metal parts of automobile body in white, there is a process called unwinding blanking, and unwinding blanking includes a subdivision process. The mold to be used is a universal blanking mold, which can process square blanks of different thicknesses. In order to meet the needs of producing square blanks of parts of different thicknesses, the required blanking gaps are different, so the universal blanking mold must be made with adjustable blanking gaps. The existing universal blanking molds with adjustable blanking gaps generally include two types: 1. Manual adjustment gap type: This universal blanking mold needs to replace different knife blocks or add different adjustment blocks to adjust the gap when processing plates of different thicknesses. The operation is cumbersome and inefficient. 2. Universal shearing mold that comes with the machine tool: This mold has a complex structure, and the electrical part is connected to the machine and cannot be replaced to other machines for production (that is, each mold can only be used on its own machine tool). The mold maintenance technology requirements are too high and the cost of use is high.

[0003] Therefore, the prior art still needs to be improved and developed. Summary of the invention

[0004] The purpose of the present invention is to provide a novel universal shearing die structure with adjustable blanking gap, which can realize automatic adjustment of the blanking gap, has a simple structure, can be used in conjunction with different production machines, and has a wide range of applications.

[0005] The technical solution of the present invention is as follows: a novel universal shearing die structure with adjustable blanking gap, which includes a lower blade mounting seat, a lower blade, an upper blade, a first adjustment block, an adjustment block driving mounting seat and a second adjustment block, wherein the upper blade is fixedly mounted on the upper die, and the lower blade is mounted on the lower blade mounting seat, and a blanking gap is formed between the upper blade and the lower blade in the front-to-back direction; one side of the first adjustment block is fixed to the front side surface of the lower blade mounting seat, and one side of the second adjustment block is fixed to the rear side surface of the adjustment block driving mounting seat, the other side of the first adjustment block is set as an inclined surface, and the other side of the second adjustment block is set as an inclined surface, and the inclined surface on the other side of the first adjustment block and the inclined surface on the other side of the second adjustment block are fitted together; the fixed lower blade mounting seat can only move in the front-to-back direction, and the adjustment block driving mounting seat can only move in the left-to-right direction.

[0006] The novel universal shearing die structure with adjustable blanking gap further includes a driving screw which penetrates the entire adjusting block driving mounting seat in the left-right direction. The driving screw is rotated to drive the adjusting block driving mounting seat to move in the left-right direction.

[0007] The novel universal shear die structure with adjustable blanking gap also includes a reset spring, which is connected to the lower blade mounting seat. When the servo motor rotates forward, it drives the drive screw to rotate, drives the adjustment block drive mounting seat to move right, and the lower blade mounting seat moves backward, so that the blanking gap between the upper blade and the lower blade becomes smaller. At this time, the reset spring is compressed. When the servo motor reverses and drives the drive screw to rotate in the opposite direction, the adjustment block drive mounting seat moves to the left driven by the drive screw, and the lower blade mounting seat moves forward driven by the elastic recovery of the reset spring, so that the blanking gap between the upper blade and the lower blade becomes larger.

[0008] The novel universal shear die structure with adjustable blanking gap is characterized in that a plurality of inclined surfaces are arranged on the other side of the first adjustment block, and two adjacent inclined surfaces are connected by a plane parallel to the left and right directions, one end of the plane is connected to the rear end of the previous inclined surface, and the other end of the plane is connected to the front end of the next inclined surface; a plurality of inclined surfaces are arranged on the other side of the second adjustment block, and two adjacent inclined surfaces are connected by a plane parallel to the left and right directions, one end of the plane is connected to the rear end of the previous inclined surface, and the other end of the plane is connected to the front end of the next inclined surface.

[0009] The novel universal shearing die structure with adjustable punching gap is provided with an anti-collision limit block on the rear side of the lower blade mounting seat to prevent the punching gap from being less than 0 and colliding with the upper blade.

[0010] The novel universal shear die structure with adjustable blanking gap is characterized in that a horizontally arranged lower blade mounting seat pressure plate is respectively provided on the left side and the right side of the lower blade mounting seat, and the lower blade mounting seat pressure plate is in sliding contact with the left side and the right side of the lower blade mounting seat, and a vertically arranged lower blade mounting seat side slide plate is respectively provided on the left side and the right side of the lower blade mounting seat, and the lower blade mounting seat side slide plate is in sliding contact with the left side and the right side of the lower blade mounting seat, and a lower blade mounting seat bottom slide plate is provided on the upper side surface of the lower blade mounting seat, and the lower blade mounting seat bottom slide plate is in sliding contact with the upper side surface of the lower blade mounting seat.

[0011] The novel universal shearing die structure with adjustable blanking gap is characterized in that an upper V-shaped self-lubricating guide plate is provided on the lower bottom surface of the lower blade mounting seat, and the upper V-shaped self-lubricating guide plate is installed in coordination with the lower V-shaped self-lubricating guide plate to further ensure sliding accuracy.

[0012] The novel universal shearing die structure with adjustable blanking gap is characterized in that an adjusting block driving seat side slide is provided on the front side surface of the adjusting block driving mounting seat, and the adjusting block driving seat side slide is in sliding contact with the front side surface of the adjusting block driving mounting seat; an adjusting block driving seat bottom slide is also provided on the upper bottom surface of the adjusting block driving mounting seat, and the adjusting block driving seat bottom slide is in sliding contact with the upper bottom surface of the adjusting block driving mounting seat.

[0013] In the novel universal shearing die structure with adjustable blanking gap, the return spring is a nitrogen spring.

[0014] The novel universal shearing die structure with adjustable blanking gap, wherein the blanking gap between the upper blade and the lower blade is adjustable in the range of 0.02mm-0.34mm, with an accuracy of 0.02mm; the novel universal shearing die structure with adjustable blanking gap can process sheet metal in the range of 0.6mm-2.8mm, and the yield strength of the sheet metal material is below 780 (MPa).

[0015] Among them, because the first adjustment block and the second adjustment block are provided with inclined surfaces that form a certain inclination angle with the left and right horizontal directions, an angle is generated, so when the adjustment block moves left and right, the movement direction of the lower blade mounting seat is changed, thereby adjusting the gap, and the setting of the planes at both ends of the inclined surface is to lock the inclined surface due to the front and rear lateral forces, which serves as a precision guarantee.

[0016] Beneficial effects of the present invention: The present invention provides a novel universal shearing die structure with adjustable blanking gap, and drives the mounting seat to move left and right by driving the adjustment block, and the second adjustment block moves accordingly. Since the fixed lower blade mounting seat can only move in the front-to-back direction, and the inclined surface on the other side of the first adjustment block fits with the inclined surface on the other side of the second adjustment block, the first adjustment block can only move in the front-to-back direction, and the lower blade mounting seat drives the lower blade to move in the front-to-back direction, thereby automatically adjusting the blanking gap between the upper blade and the lower blade, and the operation is simple and convenient; moreover, the entire novel universal shearing die structure with adjustable blanking gap has a simple structure, does not require complex electrical assistance, can be adapted to the use of different machines, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figures 1 to 4 It is a schematic diagram of the structure in various directions of the new universal shearing die structure with adjustable blanking gap in the present invention.

[0018] Figure 5 This is a diagram of the coordinated installation of the first adjustment block and the second adjustment block in the present invention.

[0019] Figure 6 The present invention Figure 5 Enlarged view of part A. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0025] like Figures 1 to 4 As shown, a novel universal shearing die structure with adjustable blanking gap comprises a lower blade mounting seat 1, a lower blade 15, an upper blade 16, a first adjustment block 19, an adjustment block driving mounting seat 2 and a second adjustment block 18, wherein the upper blade 16 is fixedly mounted on the upper die, and the lower blade 15 is mounted on the lower blade mounting seat 1, and a blanking gap is formed between the upper blade 16 and the lower blade 15 in the front-to-back direction; one side of the first adjustment block 19 is fixed to the front side of the lower blade mounting seat 1, and one side of the second adjustment block 18 is fixed to the rear side of the adjustment block driving mounting seat 2, and the other side of the first adjustment block 19 is set as an inclined surface, and the other side of the second adjustment block 18 is set as an inclined surface, and the first adjustment block 19 is set as an inclined surface. The inclined surface on the other side of block 19 fits with the inclined surface on the other side of the second adjustment block 18; the fixed lower blade mounting seat 1 can only move in the front-to-back direction, and the adjustment block drives the mounting seat 2 to move only in the left-to-right direction; by driving the adjustment block to drive the mounting seat 2 to move left-to-right, the second adjustment block 18 moves accordingly. Since the fixed lower blade mounting seat 1 can only move in the front-to-back direction, and the inclined surface on the other side of the first adjustment block 19 fits with the inclined surface on the other side of the second adjustment block 18, the first adjustment block 19 can only move in the front-to-back direction, and the lower blade mounting seat 1 drives the lower blade 15 to move in the front-to-back direction, thereby adjusting the blanking gap between the upper blade 16 and the lower blade 15.

[0026] Specifically, in order to facilitate the movement of the adjustment block driving mounting seat 2 in the left and right directions, a variety of driving structures can be used, such as cylinder drive, magnetic drive, motor drive, etc. As a preferred solution, the novel universal shearing die structure with adjustable blanking gap further includes a driving screw 4, which penetrates the entire adjustment block driving mounting seat 2 in the left and right directions. The driving screw 4 is rotated to drive the adjustment block driving mounting seat 2 to move in the left and right directions.

[0027] In the present technical solution, the novel universal shear die structure with adjustable blanking gap also includes a first screw fixing seat 3 and a second screw fixing seat 17 , one end of the driving screw 4 is mounted on the first screw fixing seat 3 , and the other end of the driving screw 4 is mounted on the second screw fixing seat 17 .

[0028] In the present technical solution, the driving screw 4 is connected to a servo motor and is driven to rotate by the servo motor.

[0029] When the servo motor rotates forward, it drives the driving screw 4 to rotate, drives the adjustment block to drive the mounting seat 2 to move right, and the lower blade mounting seat 1 moves backward, so that the blanking gap between the upper blade 16 and the lower blade 15 becomes smaller. When the servo motor rotates reversely, it drives the driving screw 4 to rotate in the opposite direction, and the adjustment block drives the mounting seat 2 to reset accordingly, but the lower blade mounting seat 1 cannot be reset due to the loss of driving force. In order to solve this problem, the new universal shearing die structure with adjustable blanking gap also includes a reset spring 8, which is connected to the lower blade mounting seat 1. When the servo motor rotates forward, it drives the driving screw 4 to rotate, drives the adjustment block to drive the mounting seat 2 to move right, and the lower blade mounting seat 1 moves backward, so that the blanking gap between the upper blade 16 and the lower blade 15 becomes smaller. The rod 4 rotates, driving the adjustment block driving mounting seat 2 to move right, while the lower blade mounting seat 1 moves backward, so that the blanking gap between the upper blade 16 and the lower blade 15 becomes smaller. At this time, the reset spring 8 is compressed. When the servo motor reverses, it drives the driving screw 4 to rotate in the opposite direction. The adjustment block driving mounting seat 2 moves to the left driven by the driving screw 4, while the lower blade mounting seat 1 moves forward driven by the elastic recovery of the reset spring 8, so that the blanking gap between the upper blade 16 and the lower blade 15 becomes larger, and the forward movement distance of the lower blade mounting seat 1 depends on the number of turns of the driving screw 4 in the opposite direction.

[0030] As a preferred solution, the return spring 8 adopts a nitrogen spring, which has the advantages of small size, large elastic force, long stroke, stable operation, precise manufacturing, long service life (one million times), flat elastic force curve, and no need for pre-tightening, etc., which meets the use requirements.

[0031] After the blanking gap between the upper blade 16 and the lower blade 15 is adjusted to the right position, the inclined surface on the other side of the first adjustment block 19 and the inclined surface on the other side of the second adjustment block 18 have no locking structure, which causes the blanking gap between the upper blade 16 and the lower blade 15 to be unable to stabilize at a position, affecting the normal operation of the stamping process. In order to solve this problem, Figure 5 and Figure 6As shown, a plurality of inclined surfaces 191 are provided on the other side of the first adjustment block 19, and two adjacent inclined surfaces 191 are connected by a plane 192 parallel to the left and right directions, one end of the plane 192 is connected to the rear end of the previous inclined surface 191, and the other end of the plane 192 is connected to the front end of the next inclined surface 191; a plurality of inclined surfaces 181 are provided on the other side of the second adjustment block 18, and two adjacent inclined surfaces 181 are connected by a plane 182 parallel to the left and right directions, one end of the plane 182 is connected to the rear end of the previous inclined surface 181, and the other end of the plane 182 is connected to the The front end of the latter inclined surface 181 is connected: when the blanking gap between the upper blade 16 and the lower blade 15 is adjusted into place, the planes at both ends of the inclined surface are used to lock the blanking gap between the upper blade 16 and the lower blade 15 to remain stable. Only when a sufficiently large driving force (the driving force of the driving screw 4) is applied, can the limiting force at both ends of the inclined surface be overcome to cause movement between the first adjustment block 19 and the second adjustment block 18 to adjust the blanking gap between the upper blade 16 and the lower blade 15; and by arranging planes at both ends of each inclined surface, the blanking gap can also be adjusted step by step.

[0032] Furthermore, the size of the blanking gap between the upper blade 16 and the lower blade 15 is related to the height of the inclined surface in the front-to-back direction. In this embodiment, the width of each inclined surface in the left-to-right direction is 5 mm, and the height of each inclined surface in the front-to-back direction is 0.02 mm; the width of each plane in the left-to-right direction is 5 mm.

[0033] In this embodiment, the adjustable range of the blanking gap between the upper blade 16 and the lower blade 15 is 0.02mm-0.34mm, with an accuracy of 0.02mm; the universal shear die structure with adjustable blanking gap can process sheet metal in the range of 0.6mm-2.8mm, and the yield strength of the sheet metal material is below 780 (MPa).

[0034] In order to prevent the lower blade 15 from colliding with the upper blade 16 and causing damage to the blade during the process of adjusting the punching gap, an anti-collision limit block 10 is provided on the rear side of the lower blade mounting seat 1. During the process of adjusting the punching gap, when the anti-collision limit block 10 is hit, it indicates that the limit position has been reached and no further adjustment can be made, thereby preventing the lower blade 15 from colliding with the upper blade 16 when the punching gap is less than 0.

[0035] Specifically, because the lower blade mounting seat 1 cannot be moved in the left and right directions and the up and down directions, but can be moved in the front and back directions, in order to limit the movement of the fixed lower blade mounting seat 1 in the left and right directions and the up and down directions, a horizontally arranged lower blade mounting seat pressure plate 5 is respectively provided on the left and right sides of the lower blade mounting seat 1, and the lower blade mounting seat pressure plate 5 is in sliding contact with the left and right sides of the lower blade mounting seat 1; a vertically arranged lower blade mounting seat side slide plate 6 is respectively provided on the left and right sides of the lower blade mounting seat 1, and the lower blade mounting seat side slide plate 6 is in sliding contact with the left and right sides of the lower blade mounting seat 1; a lower blade mounting seat bottom slide plate 7 is provided on the upper side surface of the lower blade mounting seat 1, and the lower blade mounting seat bottom slide plate 7 is in sliding contact with the upper side surface of the lower blade mounting seat 1; the lower blade mounting seat pressure plate 5 and the blade mounting seat side slide plate 6 limit the movement of the lower blade mounting seat 1 in the left and right directions, and the lower blade mounting seat bottom slide plate 7 limits the movement of the lower blade mounting seat 1 in the up and down directions.

[0036] Because the lower blade mounting seat 1 needs to have a certain installation gap in the left and right directions during installation, but after the lower blade mounting seat 1 is installed in place, the installation gap must be eliminated to ensure the stamping quality. In order to solve this problem, an upper V-shaped self-lubricating guide plate 14 is also provided on the lower bottom surface of the lower blade mounting seat 1. The upper V-shaped self-lubricating guide plate 14 is installed in conjunction with the lower V-shaped self-lubricating guide plate 13. The upper V-shaped self-lubricating guide plate 14 and the lower V-shaped self-lubricating guide plate 13 cooperate to further limit the movement of the lower blade mounting seat 1 in the left and right directions, thereby ensuring the movement accuracy of the lower blade mounting seat 1.

[0037] Specifically, because the adjustment block driving mounting seat 2 can only move in the left and right directions, in order to limit the movement of the adjustment block driving mounting seat 2 in the front and rear directions and the up and down directions, an adjustment block driving seat side slide plate 11 is provided on the front side surface of the adjustment block driving mounting seat 2, and the adjustment block driving seat side slide plate 11 is in sliding contact with the front side surface of the adjustment block driving mounting seat 2; an adjustment block driving seat bottom slide plate 12 is provided on the upper bottom surface of the adjustment block driving mounting seat 2, and the adjustment block driving seat bottom slide plate 12 is in sliding contact with the upper bottom surface of the adjustment block driving mounting seat 2.

[0038] In the present technical solution, by setting a first adjustment block 19 and a second adjustment block 18 with inclined surfaces and limiting the movement direction of the first adjustment block 19 and the second adjustment block 18, automatic adjustment of the blanking gap between the upper blade 16 and the lower blade 15 is achieved, and the operation is simple and convenient; and the entire new universal shearing die structure with adjustable blanking gap has a simple structure, does not require complex electrical assistance, can be adapted to use on different machines, and has a wide range of applications.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0040] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A new universal shearing die structure with adjustable blanking gap, characterized in that: It comprises a lower blade mounting seat, a lower blade, an upper blade, a first adjustment block, an adjustment block driving mounting seat and a second adjustment block, the upper blade is fixedly mounted on the upper die, the lower blade is mounted on the lower blade mounting seat, a blanking gap is formed between the upper blade and the lower blade in the front-to-back direction; one side of the first adjustment block is fixed to the front side surface of the lower blade mounting seat, one side of the second adjustment block is fixed to the rear side surface of the adjustment block driving mounting seat, the other side of the first adjustment block is set as an inclined surface, the other side of the second adjustment block is set as an inclined surface, the inclined surface on the other side of the first adjustment block and the inclined surface on the other side of the second adjustment block are fitted with each other; the lower blade mounting seat is fixed so as to be able to move in the front-to-back direction, and the adjustment block driving mounting seat can only move in the left-to-right direction; A plurality of inclined surfaces are provided on the other side of the first adjustment block, and two adjacent inclined surfaces are connected by a plane parallel to the left and right directions, one end of the plane is connected to the rear end of the previous inclined surface, and the other end of the plane is connected to the front end of the next inclined surface; a plurality of inclined surfaces are provided on the other side of the second adjustment block, and two adjacent inclined surfaces are connected by a plane parallel to the left and right directions, one end of the plane is connected to the rear end of the previous inclined surface, and the other end of the plane is connected to the front end of the next inclined surface; An upper V-shaped self-lubricating guide plate is also provided on the lower bottom surface of the lower blade mounting seat, and the upper V-shaped self-lubricating guide plate is installed in coordination with the lower V-shaped self-lubricating guide plate.

2. The novel universal shearing die structure with adjustable blanking gap according to claim 1 is characterized in that: It also includes a driving screw rod, which penetrates the entire adjusting block driving mounting seat in the left-right direction. The driving screw rod is rotated to drive the adjusting block driving mounting seat to move in the left-right direction.

3. The novel universal shearing die structure with adjustable blanking gap according to claim 2 is characterized in that: It also includes a reset spring, which is connected to the lower blade mounting seat. When the servo motor rotates forward, it drives the drive screw to rotate, drives the adjustment block drive mounting seat to move right, and the lower blade mounting seat moves backward, so that the blanking gap between the upper blade and the lower blade becomes smaller. At this time, the reset spring is compressed. When the servo motor reverses and drives the drive screw to rotate in the opposite direction, the adjustment block drive mounting seat moves to the left driven by the drive screw, and the lower blade mounting seat moves forward driven by the elastic recovery of the reset spring, so that the blanking gap between the upper blade and the lower blade becomes larger.

4. The novel universal shearing die structure with adjustable blanking gap according to claim 1 is characterized in that: An anti-collision limit block is arranged on the rear side surface of the lower blade mounting seat.

5. The novel universal shearing die structure with adjustable blanking gap according to claim 1 is characterized in that: A horizontally arranged lower blade mounting seat pressure plate is respectively provided on the left side and the right side of the lower blade mounting seat, and the lower blade mounting seat pressure plate is in sliding contact with the left side and the right side of the lower blade mounting seat; a vertically arranged lower blade mounting seat side slide plate is respectively provided on the left side and the right side of the lower blade mounting seat, and the lower blade mounting seat side slide plate is in sliding contact with the left side and the right side of the lower blade mounting seat; a lower blade mounting seat bottom slide plate is provided on the upper side surface of the lower blade mounting seat, and the lower blade mounting seat bottom slide plate is in sliding contact with the upper side surface of the lower blade mounting seat.

6. The novel universal shearing die structure with adjustable blanking gap according to claim 1 is characterized in that: An adjusting block driving seat side slide is arranged on the front side surface of the adjusting block driving mounting seat, and the adjusting block driving seat side slide is in sliding contact with the front side surface of the adjusting block driving mounting seat; an adjusting block driving seat bottom slide is arranged on the upper bottom surface of the adjusting block driving mounting seat, and the adjusting block driving seat bottom slide is in sliding contact with the upper bottom surface of the adjusting block driving mounting seat.

7. The novel universal shearing die structure with adjustable blanking gap according to claim 3 is characterized in that: The return spring is a nitrogen spring.

8. The novel universal shearing die structure with adjustable blanking gap according to claim 1 is characterized in that: The adjustable range of the blanking gap between the upper blade and the lower blade is 0.02mm-0.34mm, with an accuracy of 0.02mm; the thickness of the sheet material that can be processed by the new universal shear die structure with adjustable blanking gap is in the range of 0.6mm-2.8mm, and the yield strength of the sheet material is below 780MPa.