Staggered shearing and punching mechanism

Abstract

The utility model provides a staggered shearing and punching mechanism, which relates to the technical field of punching pliers and comprises a caliper body, a hollow tool bit, a positioning seat and an abutting column. Wherein the hollow tool bit and the positioning seat are oppositely arranged and are both connected with the caliper body; the diameter of the abutting column is smaller than the inner diameter of the hollow tool bit. Based on the arrangement, a material to be punched is placed on the abutting column, and under the condition that the hollow tool bit is aligned with the abutting column and downward normal stress is applied to one side of the material, the abutting column applies upward normal stress to the other side of the material. That is, along with the movement of the hollow tool bit relative to the abutting column, the material located on the annular tool face of the hollow tool bit is subjected to the downward normal stress, the material located in the annular tool face of the hollow tool bit is subjected to the upward normal stress, and at the moment, a dislocation movement trend in the thrusting direction is formed in the material. And a shearing force which can act together with the hollow tool bit is formed, so that the beneficial effect of breaking down the material in a labor-saving manner is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of punching pliers, in particular to a dislocation shearing and punching mechanism. Background Art

[0002] In existing hollow hole punching pliers with copper pads, the copper pads are flat and fixed, allowing the pliers to penetrate the material by applying sufficient pressure. However, when dealing with difficult-to-penetrate objects, based on the pressure formula (P = F / S), greater gripping force and more expensive precision blades are generally required.

[0003] However, precision tool heads with small cross-sectional areas have a short lifespan, and the gripping force is applied by the operator, requiring the operator to have greater strength, increasing the difficulty and fatigue of the operation. Utility Model Content

[0004] The purpose of the utility model is to provide a dislocation shearing and punching mechanism, which has a small and compact overall structure, low cost, high practical and economic value, and can improve the punching force in principle to achieve the best labor-saving effect.

[0005] The embodiment of the present utility model is achieved as follows:

[0006] In a first aspect, the utility model provides a dislocation shearing and punching mechanism, comprising a caliper body, a hollow cutter head, a positioning seat, and a supporting column;

[0007] The hollow cutter head and the positioning seat are arranged opposite to each other and are both connected to the caliper body; the supporting column is located on the positioning seat and has a diameter smaller than the inner diameter of the hollow cutter head;

[0008] When the hollow cutter head is aligned with the abutment post and applies a downward normal stress to one side of the material, the abutment post applies an upward normal stress to the other side of the material.

[0009] In an optional embodiment, the offset shearing and punching mechanism further includes an elastic member and an elastic copper sheet;

[0010] One end of the elastic member abuts against the positioning seat, and the other end abuts against the elastic copper sheet; the elastic copper sheet is used for placing materials and is provided with a through hole corresponding to the abutting column.

[0011] In an optional embodiment, the offset shearing and punching mechanism further includes a fixing pin connected to the positioning seat, and the fixing pin passes through the elastic copper sheet and the elastic member in sequence and abuts against the elastic copper sheet.

[0012] In an optional embodiment, the fixing pin includes a connecting portion and a supporting portion, one end of the connecting portion is connected to the positioning seat, and the other end is connected to the supporting portion, and the supporting portion is supported by the elastic copper sheet.

[0013] In an optional embodiment, the positioning seat includes a seat body and a positioning sleeve connected to the seat body, the elastic member and the elastic copper sheet are sleeved on the positioning sleeve, the fixing pin is connected to the positioning sleeve, and together with the seat body, supports the elastic member and the elastic copper sheet.

[0014] In an optional embodiment, there are multiple supporting columns, and the offset shearing and punching mechanism also includes a rotating tray, which is located between the positioning seat and the elastic copper sheet and has a through hole penetrated by a fixing pin, and multiple positioning holes that cooperate with the supporting columns.

[0015] In an optional embodiment, the plurality of abutting posts are arranged in a circular array with the central axis of the fixing pin as the axis, and the rotating tray is coaxially arranged with the fixing pin.

[0016] In an optional embodiment, the offset shearing and punching mechanism further includes a limiting member, the positioning seat is provided with a limiting hole, the rotating tray is provided with a plurality of limiting slots, the limiting member cooperates with the limiting hole, and selectively cooperates with one of the plurality of limiting slots.

[0017] In an optional embodiment, the plurality of limiting grooves are distributed in a circular array around the central axis of the rotating tray.

[0018] In an optional embodiment, the limiting member includes a fixing sleeve, a reset member and a rolling member. The fixing sleeve cooperates with the limiting hole. The reset member is located in the fixing sleeve, and its two ends are respectively connected to the fixing sleeve and the rolling member. The rolling member cooperates with the limiting groove.

[0019] The beneficial effects of the embodiments of the present utility model include:

[0020] The present application provides a dislocation shearing and punching mechanism, which specifically includes a caliper body, a hollow cutter head, a positioning seat, and a supporting column. The hollow cutter head and the positioning seat are arranged opposite to each other and are both connected to the caliper body; the supporting column is located on the positioning seat, and its diameter is smaller than the inner diameter of the hollow cutter head. Based on the above arrangement, the material to be punched is placed on the supporting column, and when the hollow cutter head is aligned with the supporting column and a downward positive stress is applied to one side of the material, the supporting column applies an upward positive stress to the other side of the material. In other words, as the hollow cutter head moves relative to the supporting column, the material located at the annular blade surface of the hollow cutter head is subjected to a downward positive stress, and the material located within the annular blade surface of the hollow cutter head is subjected to an upward positive stress. At this time, a dislocation movement trend in the direction of breaking is formed in the material, forming a shear force that can work together with the hollow cutter head, thereby achieving the beneficial effect of penetrating the material with minimal effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the offset shearing and punching mechanism provided in an embodiment of the present utility model;

[0023] Figure 2 This is an exploded schematic diagram of the offset shearing and punching mechanism provided by an embodiment of the present utility model;

[0024] Figure 3 Another schematic diagram of the offset shearing and punching mechanism provided by an embodiment of the present utility model;

[0025] Figure 4 The embodiment of the present invention provides Figure 3 Schematic diagram of the cross section along AA;

[0026] Figure 5 The embodiment of the present invention provides Figure 4 A in the middle is an enlarged schematic diagram;

[0027] Figure 6 Another schematic diagram of the offset shearing and punching mechanism provided by an embodiment of the present utility model;

[0028] Figure 7 The embodiment of the present invention provides Figure 6 Schematic diagram of the cross section along BB;

[0029] Figure 8 The embodiment of the present invention provides Figure 7 Enlarged schematic diagram of point B in the middle.

[0030] Icons: 10-offset shearing and punching mechanism; 100-caliper body; 200-hollow cutter head; 300-positioning seat; 310-seat body; 330-positioning sleeve; 350-limiting hole; 410-supporting column; 420-elastic member; 430-elastic copper sheet; 431-through hole; 450-fixing pin; 451-connecting part; 453-supporting part; 470-limiting member; 471-fixing sleeve; 473-resetting member; 475-rolling member; 490-rotating tray; 491-positioning hole; 492-through hole; 493-limiting groove. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0036] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0037] As mentioned in the background art, when facing objects that are difficult to penetrate, existing punching pliers generally have two problems: short life of the precision blade, increased difficulty in operation and high fatigue, resulting in a poor user experience for the operator.

[0038] To improve the above issues, please refer to Figure 1 and Figure 2 The present application provides a dislocation shearing and punching mechanism 10, which specifically includes a caliper body 100, a hollow cutter head 200, a positioning seat 300, and a supporting post 410. The hollow cutter head 200 and the positioning seat 300 are arranged opposite each other and are both connected to the caliper body 100; the supporting post 410 is located on the positioning seat 300 and has a diameter smaller than the inner diameter of the hollow cutter head 200.

[0039] Based on the above arrangement, the material to be punched is placed on the supporting column 410, and when the hollow cutter head 200 is aligned with the supporting column 410 and a downward positive stress is applied to one side of the material, the supporting column 410 applies an upward positive stress to the other side of the material.

[0040] That is to say, as the hollow cutter head 200 moves relative to the supporting column 410, the material located at the annular cutting surface of the hollow cutter head 200 is subjected to downward positive stress, and the material located within the annular cutting surface of the hollow cutter head 200 is subjected to upward positive stress. At this time, a dislocation movement trend in the breaking direction is formed in the material, forming a shear force that can work together with the hollow cutter head 200, thereby achieving the beneficial effect of penetrating the material with less effort.

[0041] In some embodiments, the offset shear punching mechanism 10 further includes an elastic copper sheet 430, which is used to hold the material and has a through hole 431 corresponding to the supporting column 410. It should be noted that the elastic copper sheet 430 can play a certain buffering role, absorbing some of the impact force, making the punching process more stable.

[0042] On this basis, in order to facilitate the support and reset of the elastic copper sheet 430 , the offset shearing and punching mechanism 10 further includes an elastic member 420 , one end of the elastic member 420 abuts against the positioning seat 300 , and the other end abuts against the elastic copper sheet 430 .

[0043] Specifically, before punching begins, the elastic member 420 is supported on the elastic copper sheet 430 so that it is located between the hollow blade and the supporting column 410; after punching is completed, the elastic member 420 acts on the elastic copper sheet 430 through its own restoring force, so that it returns to its initial position.

[0044] In addition, it should be noted that the elastic member 420 can be configured as a coil spring or a plurality of disc springs stacked together. This is not limited in this embodiment, and production personnel can select according to actual production needs.

[0045] Considering that the elastic member 420 and the elastic copper sheet 430 are prone to misalignment, the offset shearing and punching mechanism 10 further includes a fixing pin 450 connected to the positioning seat 300. The fixing pin 450 sequentially penetrates the elastic copper sheet 430 and the elastic member 420, thereby ensuring a linear relationship between the elastic member 420 and the elastic copper sheet 430. Furthermore, the fixing pin 450 also abuts against the elastic copper sheet 430 and transmits the abutting effect to the elastic member 420 accordingly, thereby limiting the elastic member 420 and the elastic copper sheet 430 and preventing them from detaching from the offset shearing and punching mechanism 10.

[0046] See also Figures 3 to 5 In some embodiments, the fixing pin 450 includes a connecting portion 451 and a supporting portion 453. One end of the connecting portion 451 is connected to the positioning seat 300, and the other end is connected to the supporting portion 453. At this time, the elastic copper sheet 430 and the elastic member 420 are sleeved on the connecting portion 451, and the supporting portion 453 is supported on the elastic copper sheet 430 to ensure the limiting and fixing effect.

[0047] In other embodiments, please refer to Figure 2 In order to ensure the connection stability between the fixing pin 450 and the positioning seat 300 on the basis of limiting, the positioning seat 300 includes a seat body 310 and a positioning sleeve 330 connected to the seat body 310, the elastic member 420 and the elastic copper sheet 430 are sleeved on the positioning sleeve 330, the fixing pin 450 is connected to the positioning sleeve 330, and together with the seat body 310, it supports the elastic member 420 and the elastic copper sheet 430.

[0048] As an optional embodiment, the number of abutment posts 410 can be set to multiple to achieve the purpose of improving the efficiency of the offset shearing and punching mechanism 10. It should be emphasized that based on the arrangement of abutment posts 410 and hollow cutter head 200 for shearing and punching, the problem of labor-saving punching is also solved. The size limit of hollow cutter head 200 is also solved. Therefore, multiple abutment posts 410 can be set with different diameter specifications, corresponding to multiple hollow cutter heads 200 of different specifications.

[0049] On this basis, the offset shearing and punching mechanism 10 further includes a rotating tray 490, which is located between the positioning seat 300 and the elastic copper sheet 430 and has a through hole 492 through which the fixing pin 450 passes, as well as a plurality of positioning holes 491 that cooperate with the abutting posts 410. It is understood that the number and position of the positioning holes 491 here correspond one-to-one with the number and position of the abutting posts 410, and the corresponding abutting posts 410 and the size of the positioning holes 491 match.

[0050] With this arrangement, as the rotating tray 490 rotates, the multiple abutment posts 410 engaged with the positioning holes 491 can rotate accordingly, thereby aligning the abutment posts 410 of the desired diameter with the hollow cutter head 200 at the perforation location. Accordingly, multiple hollow cutter heads 200 can also be connected via a rotating member, enabling rapid switching. Furthermore, the caliper body 100 can be provided with a vertical movement sub-mechanism and a return spring associated with the movement of the hollow cutter head 200.

[0051] Optionally, in order to simplify the switching process of the supporting column 410 and improve the punching efficiency of the offset shearing and punching mechanism 10, multiple supporting columns 410 are arranged in a circular array with the central axis of the fixing pin 450 as the axis, and the rotating tray 490 is coaxially arranged with the fixing pin 450.

[0052] See also Figures 6 to 8 In order to ensure that the supporting columns 410 of different specifications can be accurately aligned with the perforation positions, the offset shearing and punching mechanism 10 also includes a limiting member 470, the positioning seat 300 is provided with a limiting hole 350, and the rotating tray 490 is provided with multiple limiting grooves 493. The limiting member 470 cooperates with the limiting hole 350 and selectively cooperates with one of the multiple limiting grooves 493.

[0053] Similar to the above, multiple limiting grooves 493 are distributed in a circular array around the central axis of the rotating tray 490 to further improve alignment efficiency. It should also be noted that the number of limiting members 470 can be set to one or more, and the number of limiting holes 350 can also be set to one or more, as long as there is a one-to-one correspondence between the two. Preferably, there are two limiting members 470, and they are arranged symmetrically.

[0054] In some embodiments, the limiting member 470 includes a fixing sleeve 471, a reset member 473 and a rolling member 475. The fixing sleeve 471 cooperates with the limiting hole 350. The reset member 473 is located in the fixing sleeve 471, and its two ends are respectively connected to the fixing sleeve 471 and the rolling member 475. The rolling member 475 cooperates with the limiting groove 493.

[0055] It is understood that when the position of the limiting member 470 needs to be adjusted, the staff can rotate the rotating tray 490 so that the rolling member 475 falls into the fixing sleeve 471, thereby ensuring that the required specifications of the supporting column 410 are adjusted to the perforation position and the limiting lock is achieved. In other embodiments, the limiting member 470 can also be configured as a limiting member 470 in the form of an elastic member, etc., which will not be described in detail in this application.

[0056] In summary, the present application provides a dislocated shearing and punching mechanism 10, which specifically includes a caliper body 100, a hollow cutter head 200, a positioning seat 300, and a supporting column 410. The hollow cutter head 200 and the positioning seat 300 are arranged opposite to each other and are both connected to the caliper body 100; the supporting column 410 is located on the positioning seat 300, and its diameter is smaller than the inner diameter of the hollow cutter head 200. Based on the above arrangement, the material to be punched is placed on the supporting column 410, and when the hollow cutter head 200 is aligned with the supporting column 410 and a downward positive stress is applied to one side of the material, the supporting column 410 applies an upward positive stress to the other side of the material. That is to say, as the hollow cutter head 200 moves relative to the supporting column 410, the material located at the annular cutting surface of the hollow cutter head 200 is subjected to downward positive stress, and the material located within the annular cutting surface of the hollow cutter head 200 is subjected to upward positive stress. At this time, a dislocation movement trend in the breaking direction is formed in the material, forming a shear force that can work together with the hollow cutter head 200, thereby achieving the beneficial effect of penetrating the material with less effort.

[0057] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A dislocation shearing and punching mechanism, characterized in that: It includes a caliper body, a hollow cutter head, a positioning seat and a supporting column; The hollow cutter head and the positioning seat are arranged opposite to each other and are both connected to the caliper body; the supporting column is located on the positioning seat and has a diameter smaller than the inner diameter of the hollow cutter head; When the hollow cutter head is aligned with the abutment column and applies a downward normal stress to one side of the material, the abutment column applies an upward normal stress to the other side of the material.

2. The offset shearing and punching mechanism according to claim 1, characterized in that: The dislocation shearing and punching mechanism further includes an elastic member and an elastic copper sheet; One end of the elastic member abuts against the positioning seat, and the other end abuts against the elastic copper sheet; the elastic copper sheet is used to place the material and is provided with a through hole corresponding to the abutting column.

3. The offset shearing and punching mechanism according to claim 2, characterized in that: The offset shearing and punching mechanism further includes a fixing pin connected to the positioning seat, and the fixing pin passes through the elastic copper sheet and the elastic member in sequence and abuts against the elastic copper sheet.

4. The offset shearing and punching mechanism according to claim 3, characterized in that: The fixing pin includes a connecting portion and a supporting portion, one end of the connecting portion is connected to the positioning seat, and the other end is connected to the supporting portion, and the supporting portion is supported by the elastic copper sheet.

5. The offset shearing and punching mechanism according to claim 3, characterized in that: The positioning seat includes a seat body and a positioning sleeve connected to the seat body. The elastic member and the elastic copper sheet are sleeved on the positioning sleeve. The fixing pin is connected to the positioning sleeve and together with the seat body, supports the elastic member and the elastic copper sheet.

6. The offset shearing and punching mechanism according to claim 3, characterized in that: There are multiple supporting columns, and the offset shearing and punching mechanism also includes a rotating tray, which is located between the positioning seat and the elastic copper sheet and has a through hole pierced by the fixing pin, and multiple positioning holes that cooperate with the supporting columns.

7. The offset shearing and punching mechanism according to claim 6, characterized in that: The plurality of supporting columns are arranged in a circular array with the central axis of the fixing pin as the axis, and the rotating tray is coaxially arranged with the fixing pin.

8. The offset shearing and punching mechanism according to claim 6, characterized in that: The offset shearing and punching mechanism further includes a limiting member, the positioning seat is provided with a limiting hole, the rotating tray is provided with a plurality of limiting slots, the limiting member cooperates with the limiting hole and selectively cooperates with one of the plurality of limiting slots.

9. The offset shearing and punching mechanism according to claim 8, characterized in that: The plurality of limiting grooves are distributed in a circular array with the central axis of the rotating tray as the axis.

10. The offset shearing and punching mechanism according to claim 8, characterized in that: The limiting member includes a fixing sleeve, a reset member and a rolling member. The fixing sleeve cooperates with the limiting hole. The reset member is located in the fixing sleeve, and its two ends are respectively connected to the fixing sleeve and the rolling member. The rolling member cooperates with the limiting groove.

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