Shearing structure

Abstract

The utility model belongs to the technical field of cutting, and particularly relates to a cutting structure. The shearing structure is used for shearing a part to be cut, the shearing structure comprises a first shearing arm and a second shearing arm which are hinged to each other, a plurality of blade sections are arranged at the tail end of the first shearing arm and are sequentially connected end to end, and the two blade sections located at the head end and the tail end are both connected with the first shearing arm; the tail end of the second shearing arm is provided with a shearing face facing the blade section, and the blade section and the shearing face jointly clamp and press the to-be-cut piece so that a notch can be formed in the edge of the to-be-cut piece in a shearing mode. According to the utility model, the problems of how to improve the shearing efficiency and how to improve the stability and the consistency of sheared finished products can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting, and in particular relates to a cutting structure. Background Art

[0002] In today's automobiles, some models are equipped with sliding windows, such as pickup trucks, buses or trucks. The sliding windows of automobiles generally include a frame assembly and a glass assembly, wherein the glass assembly is installed in the frame assembly. The frame assembly of the sliding window usually needs to be assembled with a rubber strip. Currently, special rubber strips are used to assemble the frame assembly. In order to meet the assembly requirements, it is necessary to cut a special shape of notch on the edge of the rubber strip, such as a door-shaped notch.

[0003] However, in the prior art, ordinary scissors are used to cut the notches in the rubber strips. It takes multiple times to cut out the notches of special shapes using ordinary scissors. It is easy to cut too much or too little during cutting, causing the rubber strips to become waste. The stability and consistency are poor, which affects production efficiency and product quality. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a shearing structure, aiming to solve the problem of how to improve shearing efficiency and how to enhance the stability and consistency of the sheared product.

[0005] To achieve the above purpose, the technical solution adopted in this application is:

[0006] In a first aspect, a shearing structure is provided for shearing a piece to be cut, the shearing structure comprising a first shearing arm and a second shearing arm hinged to each other, a plurality of blade segments being arranged at the end of the first shearing arm, the plurality of blade segments being connected end to end in sequence, and the two blade segments located at the head end and the tail end being connected to the first shearing arm, a shearing surface facing the blade segment being arranged at the end of the second shearing arm, the blade segment and the shearing surface jointly clamping the piece to be cut to form a notch at the edge of the piece to be cut.

[0007] In some embodiments, the blade segment is in a straight line, a broken line, or an arc shape.

[0008] In some embodiments, a plurality of the blade segments are combined to form a hollow hole.

[0009] In some embodiments, three blade segments are disposed at the end of the first shear arm, and the three blade segments are all in a straight line shape, wherein two of the blade segments are symmetrically connected to two ends of another blade segment.

[0010] In some embodiments, any two adjacent blade segments are perpendicular to each other.

[0011] In some embodiments, the end of the second shearing arm is connected to a limiting structure, and the limiting structure is used to limit the depth of the piece to be cut extending into the shearing surface, and the position of the limiting structure relative to the shearing surface is adjustable.

[0012] In some embodiments, the limiting structure includes a fixed block, a limiting block and a connecting screw, the fixed block is connected to the second shear arm, the limiting block includes a resisting arm and a connecting arm connected to each other, the resisting arm is used to resist the piece to be cut, a connecting hole is provided on the connecting arm, the connecting hole is a waist-shaped hole, a threaded hole is provided on the fixed block, and the connecting screw passes through the connecting hole and the threaded hole to lock the limiting block.

[0013] In some embodiments, the shearing structure further comprises a pneumatic drive assembly, wherein the pneumatic drive assembly is connected to a hinge between the first shearing arm and the second shearing arm, the pneumatic drive assembly is used to drive the first shearing arm and the second shearing arm to move, and the pneumatic drive assembly is connected to an air source.

[0014] In some embodiments, an elastic member is disposed at one end of the first shearing arm and the second shearing arm away from the blade section, and the elastic member is elastically compressed between the first shearing arm and the second shearing arm.

[0015] In some embodiments, the blade segment is a hard metal part.

[0016] The shearing structure provided by the present application has multiple blade segments connected end to end in sequence. Therefore, when the blade segments and the shearing surface jointly clamp the workpiece to be sheared, the multiple blade segments act on the workpiece to be sheared at the same time, which can achieve one-time shearing and form a notch at the edge of the workpiece to be cut. The shape of the notch corresponds to the connection trajectory of the multiple blade segments. It has strong flexibility and adaptability, is easy to operate, and improves the shearing efficiency. Moreover, since it is a one-time shearing, it is more controllable, thereby improving the stability and consistency of the sheared product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or exemplary technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the shear structure provided in the embodiment of the present application;

[0019] Figure 2 It is a partial structural schematic diagram of the shearing structure provided in the embodiment of the present application;

[0020] Figure 3 It is a structural schematic diagram of the first shear arm provided in an embodiment of the present application.

[0021] Among them, the reference numerals in the figure are:

[0022] 10. First shear arm; 11. Blade section; 12. Hollow hole; 20. Second shear arm; 21. Shear surface; 30. Limiting structure; 31. Fixing block; 321. Stop arm; 322. Connecting arm; 3221. Connecting hole; 33. Connecting screw; 40. Pneumatic drive assembly; 50. Elastic member. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the 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 in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0024] 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 orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. 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 utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present utility model, 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.

[0027] See also Figures 1 to 3 The embodiment of the present application provides a shearing structure for shearing a piece to be cut, and the shearing structure can cut a notch at the edge of the piece to be cut. In the present application, the piece to be cut is a rubber strip used to assemble a vehicle frame. When assembling the vehicle frame, a notch of a special shape needs to be cut at the border of the rubber strip. Of course, the piece to be cut can also be other structures, and the present application does not limit this to a single one.

[0028] In the present application, the shearing structure includes a first shearing arm 10 and a second shearing arm 20 that are hinged to each other. A plurality of blade segments 11 are provided at the end of the first shearing arm 10. The plurality of blade segments 11 are connected end to end in sequence, and the two blade segments 11 located at the head end and the tail end are both connected to the first shearing arm 10. A shearing surface 21 facing the blade segment 11 is provided at the end of the second shearing arm 20. The blade segment 11 and the shearing surface 21 clamp the workpiece to be cut together to form a notch by shearing the edge of the workpiece to be cut. It can be understood that since the plurality of blade segments 11 can act on the workpiece to be cut at the same time, the shape of the waste cut by the blade segment 11 corresponds to the connection track of the plurality of blade segments 11, and the shape of the notch also corresponds to the connection track of the plurality of blade segments 11.

[0029] It can be understood that since the first shearing arm 10 and the second shearing arm 20 are hinged to each other, the first shearing arm 10 and the second shearing arm 20 at one end close to the piece to be cut can be close to or away from each other. When the shearing structure shears the piece to be cut, the piece to be cut is clamped between the first shearing arm 10 and the second shearing arm 20. By bringing the first shearing arm 10 and the second shearing arm 20 close to each other, pressure can be applied to the piece to be cut, so that the blade segment 11 shears out waste material on the piece to be cut and forms a notch on the piece to be cut. When the shearing is completed, the first shearing arm 10 and the second shearing arm 20 at one end close to the piece to be cut move away from each other to perform the next shearing.

[0030] The shearing structure provided by the present application has multiple blade segments 11 connected end to end in sequence. Therefore, when the blade segments 11 and the shearing surface 21 jointly clamp the workpiece to be sheared, the multiple blade segments 11 act on the workpiece to be sheared at the same time, which can achieve one-time shearing and form a notch at the edge of the workpiece to be cut. The shape of the notch corresponds to the connection trajectory of the multiple blade segments. It has strong flexibility and adaptability, is easy to operate, and improves the shearing efficiency. Moreover, since it is a one-time shearing, it is more controllable, thereby improving the stability and consistency of the sheared product.

[0031] In the present application, multiple blade segments 11 can be connected end to end in sequence according to a preset trajectory, so that the multiple blade segments 11 can be combined with the end face of the first shear arm 10 to form a preset shape, such as a triangle, square, pentagon or other polygon. The first shear arm 10 and the second shear arm 20 rotate towards each other. At this time, the multiple blade segments 11 can act on the workpiece to be cut simultaneously and synchronously, thereby cutting off waste of a preset shape on the workpiece to be cut, so that a notch of a preset shape is formed at the edge of the workpiece to be cut.

[0032] In some embodiments, the end of the first shear arm 10 may be provided with N straight blade segments 11 connected end to end in sequence, so that the plurality of blade segments 11 and the end surface of the first shear arm 10 are arranged to form a preset pattern, wherein N is a positive integer greater than or equal to 2. Specifically, when N is equal to 2, the preset pattern is in a triangular shape, that is, the outline of the notch at the edge of the piece to be cut is a triangle. When N is equal to 3, the preset pattern is in a quadrilateral shape, that is, the outline of the notch at the edge of the piece to be cut is a quadrilateral. When N is equal to 4, the preset pattern is in a pentagonal shape, that is, the outline of the notch at the edge of the piece to be cut is a pentagon. The number of blade segments 11 can be flexibly selected according to actual conditions, and the present application does not make a sole limitation on this.

[0033] In some embodiments, Figure 3 As shown, three blade segments 11 are arranged at the end of the first shear arm 10 , and the three blade segments 11 are all in a straight line, wherein two blade segments 11 are symmetrically connected to the two ends of another blade segment 11 , that is, two blade segments 11 are symmetrical about the midline of the third blade segment 11 .

[0034] Furthermore, in the present application, any two adjacent blade segments 11 are perpendicular to each other. At this time, the three blade segments 11 and the edge line of the workpiece to be cut are arranged to form a rectangle, and after the cutting is completed, a "door"-shaped gap is formed at the edge of the workpiece to be cut.

[0035] Optionally, in the present application, the blade segment 11 is in a straight line, a broken line or an arc shape. Optionally, the broken line shape may include two consecutively connected sidelines, both of which are straight lines, and the two sidelines are symmetrically arranged about a symmetry axis passing through the connection point of the two sidelines, that is, the above-mentioned broken line shape forms an isosceles triangle without a base. When the blade segment 11 is in an arc shape, the preset pattern surrounded by the end surface of the plurality of blade segments 11 and the first shear arm 10 is convex, forming a convex curved polygon, the shape of which is similar to a petal.

[0036] Of course, the end of the first shearing arm 10 can be provided with blade segments 11 of different shapes at the same time, for example, it can include a straight blade segment 11 and a broken line blade segment 11 at the same time, or include a straight blade segment 11 and an arcuate blade segment 11, or include a broken line blade segment 11 and an arcuate blade segment 11, or include a straight blade segment 11, a broken line blade segment 11 and an arcuate blade segment 11 at the same time, so that the preset pattern formed by the multiple blade segments 11 and the end face of the first shearing arm 10 is an irregular pattern, so that irregular notches can be cut out in the piece to be cut.

[0037] In some embodiments, a plurality of blade segments 11 are enclosed to form a hollow hole 12. When the shearing structure shears the waste from the workpiece to be cut, the sheared waste can be temporarily placed in the hollow hole 12, that is, the hollow hole 12 can temporarily collect the waste, and the sheared waste will not be scattered everywhere, so that it is convenient to collect. In addition, by providing the hollow hole 12, the convenience of processing the blade segment 11 can be improved.

[0038] It can be understood that the end of the first shear arm 10 of the present application is a block structure with a certain thickness, and multiple blade segments 11 are arranged at the end of the first shear arm 10. The blade edge of the blade segment 11 faces the shear surface 21, and the other surfaces of the end of the first shear arm 10 are not provided with a blade edge. That is to say, the other surfaces of the end of the first shear arm 10 are not provided with a sharp structure, which can improve safety during use and improve the appearance.

[0039] In some embodiments, Figure 1 and Figure 2As shown, the end of the second shearing arm 20 is connected to a limiting structure 30, which is used to limit the depth of the piece to be cut extending into the shearing surface 21, and the position of the limiting structure 30 relative to the shearing surface 21 is adjustable. By setting the limiting structure 30, the piece to be cut can be limited, so that the position of the piece to be cut is more stable, the consistency of shearing is ensured, and the shearing effect is improved. Since the position of the limiting structure 30 relative to the shearing surface 21 is adjustable, the depth of the piece to be cut extending into the shearing surface 21 can be adjusted, so that the depth of the blade segment 11 extending into the piece to be cut can be adjusted according to actual needs to adjust the depth of the notch formed by shearing. For example, when the depth of the notch to be sheared is large, the position of the limiting structure 30 can be adjusted to make the limiting structure 30 farther away from the piece to be cut, and the size of the piece to be cut extending into the shearing surface 21 is larger; when the depth of the notch to be sheared is small, the position of the limiting structure 30 can be adjusted to make the limiting structure 30 closer to the piece to be cut, and the size of the piece to be cut extending into the shearing surface 21 is smaller.

[0040] Specifically, the limiting structure 30 includes a fixed block 31, a limiting block and a connecting screw 33. The fixed block 31 is connected to the second shear arm 20. The limiting block includes a resisting arm 321 and a connecting arm 322 that are connected to each other. The resisting arm 321 is used to resist the piece to be cut. The connecting arm 322 is provided with a connecting hole 3221. The connecting hole 3221 is a waist-shaped hole. A threaded hole is provided on the fixed block 31. The connecting screw 33 passes through the connecting hole 3221 and the threaded hole to lock the limiting block. Through the cooperation of the waist-shaped hole and the connecting screw 33, the position of the limit block can be determined according to actual needs. The operation is simple, convenient and fast.

[0041] Preferably, the shearing structure of the present application further includes a pneumatic drive assembly 40, which is connected to the hinge of the first shearing arm 10 and the second shearing arm 20. The pneumatic drive assembly 40 is used to drive the first shearing arm 10 and the second shearing arm 20 to move. The pneumatic drive assembly 40 is connected to an air source, which is the power source of the pneumatic drive assembly 40, and is usually powered by compressed air. The pneumatic drive assembly 40 usually includes a cylinder, and the compressed air enters the cylinder after being regulated by a pressure regulating valve, pushing the piston in the cylinder forward, thereby driving the first shearing arm 10 and the second shearing arm 20 to shear, which is equivalent to converting the kinetic energy of the piston into the shearing force of the first shearing arm 10 and the second shearing arm 20. By setting the pneumatic drive assembly 40, using compressed air to provide power, having a higher shearing force, the shearing effect can be improved and the efficiency of cutting can be improved, and the operation is simple, which can reduce labor intensity and maintenance costs.

[0042] In some embodiments, an elastic member 50 is provided at one end of the first shear arm 10 and the second shear arm 20 away from the blade section 11. The elastic member 50 is elastically compressed between the first shear arm 10 and the second shear arm 20. When a shearing action is completed, the first shear arm 10 and the second shear arm 20 can be reset by the elastic restoring force of the elastic member 50 so as to perform the next shearing action. Optionally, the elastic member 50 of the present application is a spring. Specifically, the first shear arm 10 and the second shear arm 20 can be hinged by a hinge structure, and an assembly hole can be opened at a position close to the hinge structure on the first shear arm 10 and the second shear arm 20, and the two ends of the elastic member 50 are respectively installed in the assembly holes of the first shear arm 10 and the second shear arm 20, so as to improve the stability of the installation of the elastic member 50.

[0043] In some embodiments, the blade segment 11 is a hard metal part, that is, the blade segment 11 is made of a hard metal material, such as tungsten carbide, magnesium alloy, steel or other high-rigidity hard alloy materials, etc., which can improve the hardness and strength of the blade segment 11, achieve successful shearing in one time, and is not easy to wear during long-term use.

[0044] To sum up, the shearing structure provided by the present application has multiple blade segments 11 connected end to end in sequence. Therefore, when the blade segments 11 and the shearing surface 21 jointly clamp the piece to be sheared, the multiple blade segments 11 act on the piece to be sheared at the same time, which can achieve one-time shearing and form a notch on the edge of the piece to be cut, and the shape of the notch corresponds to the connection trajectory of the multiple blade segments 11. It has strong flexibility and adaptability, and is simple to operate, which improves the shearing efficiency. And because it is a one-time shearing, it is more controllable, thereby improving the stability and consistency of the sheared product.

[0045] The above are only optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A shearing structure for shearing a piece to be cut, characterized in that: The shearing structure comprises a first shearing arm (10) and a second shearing arm (20) which are hinged to each other; a plurality of blade segments (11) are arranged at the end of the first shearing arm (10); the plurality of blade segments (11) are connected end to end in sequence, and the two blade segments (11) located at the head end and the tail end are both connected to the first shearing arm (10); a shearing surface (21) facing the blade segment (11) is arranged at the end of the second shearing arm (20); the blade segment (11) and the shearing surface (21) jointly clamp the piece to be cut so as to shear and form a notch at the edge of the piece to be cut.

2. The shear structure according to claim 1, characterized in that: The blade segment (11) is in a straight line shape, a broken line shape or an arc shape.

3. The shear structure according to claim 1, characterized in that: The plurality of blade segments (11) surround and form a hollow hole (12).

4. The shearing structure according to claim 2, characterized in that: Three blade segments (11) are arranged at the end of the first shearing arm (10), and the three blade segments (11) are all in a straight line shape, wherein two of the blade segments (11) are symmetrically connected to the two ends of another blade segment (11).

5. The shearing structure according to claim 4, characterized in that: Any two adjacent blade segments (11) are perpendicular to each other.

6. The shearing structure according to any one of claims 1 to 5, characterized in that: The end of the second shearing arm (20) is connected to a limiting structure (30), and the limiting structure (30) is used to limit the depth of the piece to be cut extending into the shearing surface (21), and the position of the limiting structure (30) relative to the shearing surface (21) is adjustable.

7. The shearing structure according to claim 6, characterized in that: The limiting structure (30) comprises a fixed block (31), a limiting block and a connecting screw (33); the fixed block (31) is connected to the second shear arm (20); the limiting block comprises a resisting arm (321) and a connecting arm (322) which are connected to each other; the resisting arm (321) is used to resist the piece to be cut; the connecting arm (322) is provided with a connecting hole (3221); the connecting hole (3221) is a waist-shaped hole; the fixed block (31) is provided with a threaded hole; the connecting screw (33) passes through the connecting hole (3221) and the threaded hole to lock the limiting block.

8. The shear structure according to any one of claims 1 to 5, characterized in that: The shearing structure further comprises a pneumatic drive assembly (40), wherein the pneumatic drive assembly (40) is connected to a hinge between the first shearing arm (10) and the second shearing arm (20), and the pneumatic drive assembly (40) is used to drive the first shearing arm (10) and the second shearing arm (20) to move, and the pneumatic drive assembly (40) is connected to an air source.

9. The shear structure according to any one of claims 1 to 5, characterized in that: An elastic member (50) is provided at one end of the first shearing arm (10) and the second shearing arm (20) facing away from the blade section (11), and the elastic member (50) is elastically compressed between the first shearing arm (10) and the second shearing arm (20).

10. The shearing structure according to any one of claims 1 to 5, characterized in that: The blade segment (11) is a hard metal part.

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