Positioning cutting tool

Abstract

The utility model belongs to the technical field of composite material cutting discloses a kind of positioning cutting frock, including workstation assembly, cutting mechanism and positioning clamping mechanism;Through a variety of different width, detachable connection in the second positioning component and clamping component of elastic workstation, the column of adaptation different width. First positioning component is fixed column cutting end as reference surface, second positioning component fixed column non-cutting end, clamping component will column be fixedly attached to elastic workstation, realize stable location and accurate cutting, without replacing whole frock, improve versatility and flexibility. Elastic workstation, base, color card and positioning pin cooperate, realize quick, accurate positioning cutting length, reduce batch processing error, improve pass rate. Cutting mechanism can accurately adjust cutting angle, elastic workstation surface has elasticity, enhance column and workbench adhesion, reduce horizontal and vertical shake, improve cutting stability, and absorb vibration, reduce column damage and burr risk.

Description

Technical Field

[0001] This utility model relates to the field of composite material cutting technology, and in particular to a positioning cutting fixture. Background Technology

[0002] Carbon fiber columns, due to their superior properties such as high strength, lightweight, and corrosion resistance, are widely used in aerospace, rail transportation, robot structural components, precision equipment frames, sports equipment, and industrial support components. Different engineering structures have varying requirements for installation space, connection methods, and force direction. Therefore, carbon fiber columns need to be custom-made to specific dimensions based on the actual application scenario. Different equipment frames, skeleton structures, or mounting supports often require columns of different lengths to achieve precise assembly and mechanical matching. Furthermore, the ends of the columns often need to be cut at specific angles to meet the requirements of structural tilt angles, beveled surface fit, force transmission direction, or modular splicing; the accuracy of the angle cutting directly affects the overall assembly accuracy and load-bearing performance.

[0003] Existing carbon fiber column cutting fixtures generally suffer from poor adaptability, limited functionality, and insufficient processing accuracy: their structures are mostly "one-to-one" fixed, only compatible with columns of a single specification, and replacing or adjusting the fixtures is costly and time-consuming; most fixtures only support right-angle cutting and cannot directly process beveled angles. If beveled cutting is required, secondary adjustments must be made, resulting in low angle accuracy, limited adjustment range, and a serious impact on production efficiency; in addition, the positioning and adjustment of the fixtures are highly dependent on the operator's experience, requiring repeated measurements and manual calibration, which is complex, inefficient, and prone to human error, making it difficult to guarantee the consistency and dimensional accuracy of batch processing. Utility Model Content

[0004] The purpose of this invention is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this invention is to provide a positioning and cutting fixture that can adapt to columns of various specifications, allowing for adjustment of both the cutting length and the cutting angle, with a wide adjustment range and high processing accuracy. Simultaneously, it achieves automatic adjustment, precise positioning, stable clamping, and efficient cutting, with a simple operation process, significantly improving processing efficiency, and ensuring consistency and dimensional accuracy in batch processing.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A positioning and cutting fixture, comprising:

[0007] A workbench assembly includes a base, a flexible workbench, color cards, and positioning pins. The base is fixedly installed, and the flexible workbench is mounted on the base and slides back and forth along the length of the base. Color cards of different colors are spaced apart along the length of one long side of the base, and each color corresponds to at least one positioning hole. The positioning pins pass through the flexible workbench and can be selectively inserted into the corresponding positioning holes.

[0008] The cutting mechanism is fixedly mounted on one side of the workbench assembly, located at the cutting end of the column to be cut, and can adjust and lock the cutting angle;

[0009] The positioning and clamping mechanism includes a first positioning component, multiple second positioning components of different widths, and multiple clamping components of different widths. The first positioning component is fixedly mounted on the elastic worktable near one end of the cutting mechanism. The second positioning components are detachably fixed on the elastic worktable. The clamping components are detachably fixed on the elastic worktable and located between the first positioning component and the second positioning components. The columns of different widths can be selectively used in conjunction with the second positioning components and clamping components of corresponding widths.

[0010] In some alternative embodiments, the second positioning component includes a positioning base, a first positioning plate, and a latching stop; the positioning base is mounted on the elastic worktable, the first positioning plate is an L-shaped plate, vertically disposed on the positioning base, its horizontal plate surface is parallel to the elastic worktable, extending towards the column cutting end, and a first positioning groove is formed on the side near the column cutting end; the first positioning groove engages with the non-cutting end of the column to restrict its movement, and the latching stop is disposed on the positioning base, the positioning base being detachably fixed to the elastic worktable by the latching stop.

[0011] In some optional embodiments, the second positioning component further includes a second positioning plate. The first positioning plate is vertically disposed on the side of the positioning base away from the cut end of the column, and the second positioning plate is vertically disposed on the side of the positioning base close to the cut end of the column. The height of the first positioning plate is higher than the height of the second positioning plate. A second positioning groove is provided on the top of the second positioning plate for supporting the column. The width of the second positioning groove matches the width of the first positioning groove.

[0012] In some alternative embodiments, the width of the first positioning groove on the first positioning plate in different second positioning components is different along the width direction of the elastic worktable, and the width of the second positioning groove on the corresponding second positioning plate matches the width of the first positioning groove.

[0013] In some alternative embodiments, the clamping assembly includes a manual clamping drive, a limiting plate, a clamping seat, and a pressing block; one end of the clamping seat is connected to the manual clamping drive, and the other end is provided with a limiting protrusion; the limiting plate is detachably mounted on the elastic worktable and has a limiting hole thereon, and the limiting protrusion is engaged with the limiting hole; the pressing block is screwed to the side of the clamping seat facing the column and is used to directly press the column; the manual clamping drive can selectively lock or release the clamping seat on the elastic worktable.

[0014] In some alternative embodiments, the clamping seats in different clamping assemblies have different widths along the width direction of the elastic worktable, and each limiting plate cooperates with the clamping seat of its corresponding width and is disposed on the elastic worktable.

[0015] In some alternative embodiments, the first positioning component includes a horizontal plate and a vertical plate. The horizontal plate is disposed at one end of the elastic worktable near the cutting mechanism, and its upper surface is flush with the upper surface of the elastic worktable. The vertical plate is fixedly disposed at the edge of the horizontal plate in the vertical direction, and the two intersect to form a rectangular support side for supporting the cutting end of the column.

[0016] In some alternative embodiments, the cutting mechanism includes an angle adjustment component and a cutting component. The angle adjustment component includes an angle disk, an angle adjustment handle, and an angle locking component. The angle disk is fixedly installed on one side of the elastic worktable on the base, located at the cutting end of the column to be cut, and its output end is connected to the cutting component. The angle adjustment handle is installed on the angle disk, and the angle adjustment handle rotates the angle disk to drive the cutting component to adjust the cutting angle. The angle locking component is used to lock the angle disk at the desired cutting angle position.

[0017] In some alternative embodiments, the cutting assembly includes a cutting machine and a dust collection assembly. The cutting machine is mounted on the angle plate and adjusts the cutting angle with the angle plate. The dust collection assembly is mounted on the cutting machine and is used to collect cutting dust.

[0018] In some alternative embodiments, the flexible worktable has a handle on one side along its length.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides a positioning and cutting fixture, including a worktable assembly, a cutting mechanism, and a positioning and clamping mechanism. By assembling various second positioning components and clamping components of different widths, detachably connected to the flexible worktable, it adapts to various widths of columns to be cut. The first positioning component serves as a reference surface, with the column cutting end fitting against it. The second positioning component is placed at the non-cutting end of the column according to its length and fixedly connected to the flexible worktable, thus stabilizing the column position. The clamping component secures the column to the flexible worktable, ensuring precise cutting and meeting the stable positioning requirements of columns of different widths. Multiple specifications of columns can be processed without changing the entire fixture, improving the fixture's versatility and flexibility. Through the coordinated operation of the flexible worktable, base, color card, and positioning pin, rapid length limiting is achieved. Operators only need to insert the positioning pin into the corresponding color card hole to quickly and accurately position the column cutting length, eliminating reliance on operational experience and reducing batch processing consistency errors, thereby improving product qualification rates. The cutting mechanism can precisely adjust the cutting angle for efficient cutting. Meanwhile, the surface of the flexible worktable has a certain elastic deformation capacity. When the clamping components apply pressure to the column, the column can fit tightly against the worktable surface, reducing the slight swaying of the column in the horizontal and vertical directions, improving the positioning stability during cutting, and thus ensuring cutting accuracy. During the cutting process, the flexible worktable can absorb some energy, reducing the vibration transmitted to the column and reducing the risk of damage or burr formation to the carbon fiber column. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the positioning and cutting fixture described in this utility model.

[0022] In the picture:

[0023] 1. Workbench assembly; 11. Base; 12. Flexible workbench; 13. Positioning pin; 14. Handle;

[0024] 2. Cutting mechanism; 21. Angle adjustment assembly; 211. Angle disc; 212. Angle adjustment handle; 22. Cutting assembly; 221. Cutting machine;

[0025] 3. Positioning and clamping mechanism; 31. First positioning component; 32. Second positioning component; 321. Positioning base; 322. First positioning plate; 323. First positioning groove; 324. Second positioning plate; 325. Latch stop; 33. Clamping component; 331. Manual clamping drive; 332. Limiting plate; 333. Clamping seat; 334. Pressing block. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0027] In this invention, the terms "comprising," "including," "having," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0028] In this invention, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "and / or" relationship.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," "fixed," "combined," "coupled," and "installed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; they can be a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For example, a direct connection refers to two parts or components being connected together without an intermediate component, while an indirect connection refers to two parts or components each being connected to at least one intermediate component, with the connection achieved through the intermediate component. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, "connected" and "coupled" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0030] In this invention, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0031] In this invention, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can be performed by one part, one component, or a combination of multiple parts.

[0032] In this utility model, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationships shown in the accompanying drawings. They are used solely for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, in the context, it should be understood that when an element is mentioned as being "upper" or "lower" of another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as "upper side," "lower side," "left side," "right side," "front side," and "rear side" not only represent positive orientation but can also be understood as lateral orientation. For example, "above," "on top of," "upper side of," and "above" of the first feature and the second feature include the first feature being directly above, to the upper left, to the upper right, to the upper front, and to the upper rear of the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. The terms "below," "under," "below," and "below" for "first feature" and "second feature" include situations where the first feature is directly below, to the lower left, to the lower right, in front of, or behind the second feature, or simply indicate that the first feature is at a lower horizontal level than the second feature. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0033] Please refer to Figure 1As shown, this embodiment provides a positioning and cutting fixture for cutting carbon fiber columns of different widths and lengths at multiple angles. It includes a worktable assembly 1, a cutting mechanism 2, and a positioning and clamping mechanism 3. The worktable assembly 1 includes a base 11, a flexible worktable 12, color cards, and positioning pins 13. The base 11 is fixedly mounted, and the flexible worktable 12 is installed on the base 11 and slides back and forth along the length of the base 11. Color cards of different colors are spaced apart along the length of one long side of the base 11, with at least one positioning hole corresponding to each color. The positioning pins 13 pass through the flexible worktable 12 and can be selectively inserted into the corresponding positioning holes. The cutting mechanism 2 is fixedly mounted on one side of the worktable assembly 1. Located at the cutting end of the column to be cut, the cutting angle can be adjusted and locked; the positioning and clamping mechanism 3 includes a first positioning component 31, multiple second positioning components 32 of different widths, and multiple clamping components 33 of different widths. The first positioning component 31 is fixedly mounted on the elastic worktable 12 near the cutting mechanism 2; the second positioning components 32 are detachably fixed on the elastic worktable 12; the clamping components 33 are detachably fixed on the elastic worktable 12 and located between the first positioning component 31 and the second positioning components 32, used to clamp the column so that it fits against the surface of the elastic worktable 12; columns of different widths can be selectively used with the corresponding width of the second positioning component 32 and clamping component 33.

[0034] First, move the elastic worktable 12 in the worktable assembly 1 to the initial position, so that the positioning pin 13 is inserted into the positioning hole on the base 11 furthest from the cutting mechanism 2; then, select the second positioning component 32 and the clamping component 33 that are compatible with the width of the column to be cut, and place the column on the elastic worktable 12 along its length, so that the non-cutting end of the column is in contact with the second positioning component 32, and the cutting end of the column is in contact with the first positioning component 31 near the cutting mechanism 2. After visually confirming that both ends are in contact, fix the second positioning component 32 to the elastic worktable 12; then, clamp the column and the elastic worktable 12 simultaneously with the clamping component 33, so that the column is tightly attached to the surface of the elastic worktable 12. Subsequently, the cutting mechanism 2 is rotated according to the processing requirements to make its cutting angle consistent with the target processing angle, and the cutting mechanism 2 is locked to keep the cutting angle of the cutting mechanism 2 stable; then, the positioning pin 13 is pulled out, the elastic worktable 12 is slid towards the cutting mechanism 2 to the position of the color card corresponding to the required cutting length, and then the positioning pin 13 is passed through the elastic worktable 12 and inserted into the positioning hole corresponding to the color card, thereby fixing the column in the correct cutting position below the cutting mechanism 2; at this time, the cutting mechanism 2 can be started to cut; after the cutting is completed, the clamping assembly 33 is disassembled, the column is taken out and transferred to the designated position, and the above operation is repeated for the next column to be cut.

[0035] By assembling various widths of second positioning components 32 and clamping components 33, which are detachably connected to the flexible worktable 12, the system can adapt to the widths of various columns to be cut. The first positioning component 31 serves as a reference surface, with the column cutting end abutting against it. The second positioning component 32 is placed at the non-cutting end of the column according to its length and is fixedly connected to the flexible worktable 12, thus stabilizing the column position. The clamping component 33 clamps the column, ensuring it is tightly against the flexible worktable 12 for precise cutting, meeting the stable positioning requirements of columns of different widths. Multiple specifications of columns can be processed without changing the entire tooling set, improving the tooling's versatility and flexibility. Through the coordinated operation of the flexible worktable 12, base 11, color card, and positioning pin 13, rapid length limiting is achieved. Operators only need to insert the positioning pin 13 into the corresponding color card hole to quickly and accurately position the column, without relying on operational experience, thereby reducing batch processing consistency errors and improving product qualification rates. The cutting mechanism 2 can precisely adjust the cutting angle for efficient cutting.

[0036] Meanwhile, the surface of the flexible worktable 12 has a certain elastic deformation capacity. When the clamping assembly 33 applies pressure to the column, the column can fit tightly against the worktable surface, reducing the slight wobbling of the column in the horizontal and vertical directions, improving the positioning stability during cutting, and thus ensuring cutting accuracy. During the cutting process, the cutting assembly 22 may generate vibration or impact force. The flexible worktable 12 can absorb some of the energy, reducing the vibration transmitted to the column and lowering the risk of damage or burr formation to the carbon fiber column. The upper surface of the flexible worktable 12 may, but is not limited to, using elastic rubber material; no specific limitation is made here.

[0037] The second positioning component 32 with different widths and the multiple clamping components 33 with different widths refer to the fact that they have different dimensional specifications in the width direction relative to the elastic worktable 12, that is, the two have different structural dimensions in the width direction.

[0038] In some optional embodiments, a sliding track is provided on the base 11 along the length direction of the base 11, and the elastic worktable 12 can move smoothly back and forth on the base 11 along the sliding track; ensuring that the elastic worktable 12 will not shift laterally or tilted during the movement, and ensuring that the column always moves along the length direction to keep aligned with the cutting mechanism 2.

[0039] Specifically, the flexible worktable 12 is provided with a handle 14 on one side along its length, providing a gripping point for the operator to facilitate sliding the flexible worktable 12.

[0040] Optionally, the flexible worktable 12 is also equipped with a straightener, which can provide guidance for the column when it is placed, and guide the column to be positioned straight along its length; the operator does not need to manually adjust the straightness of the column, reducing the difficulty of operation and improving production efficiency.

[0041] For example, the colors of the color card are set sequentially along the length of the base 11 as red, black, yellow, blue, green, silver and other different colors. The first positioning component 31 at one end of the elastic worktable 12 is used as the reference surface. When the positioning pin 13 is inserted into the positioning hole furthest from the first positioning component 31, the initial state is that each color corresponds to a different cutting size. By moving the elastic worktable 12 toward the cutting mechanism 2, and according to the processing requirements, the positioning pin 13 is inserted into the positioning hole of the specified color, so as to realize the fine length cutting of the column of the same specification.

[0042] Specifically, the second positioning component 32 includes a positioning base 321, a first positioning plate 322, and a latching stop 325. The positioning base 321 is mounted on the elastic worktable 12. The first positioning plate 322 is an L-shaped plate, which is set vertically on the positioning base 321. Its horizontal plate surface is parallel to the elastic worktable 12 and extends towards the column cutting end. A first positioning groove 323 is opened on the side of the plate near the column cutting end. The first positioning groove 323 engages with the non-cutting end of the column to restrict its movement. The latching stop 325 is set on the positioning base 321. The positioning base 321 is detachably fixed to the elastic worktable 12 by the latching stop 325. The positioning base 321 is mounted on the flexible worktable 12, serving as the load-bearing and fixing component between the second positioning assembly 32 and the flexible worktable 12. The first positioning plate 322 adopts an L-shaped design, and its first positioning groove 323 on the horizontal plate surface can tightly fit the non-cutting end of the column, constraining the column in both the length and width directions, effectively limiting the horizontal movement of the column, thereby ensuring the stability of the column position during the cutting process. The positioning base 321 is detachably fixed to the flexible worktable 12 by a latch stop 325, allowing operators to quickly disassemble or replace the second positioning assembly 32 of different widths without replacing the entire set of tooling, thus improving operational efficiency and flexibility. More specifically, the latch stop 325 is locked by rotating a latch bar: when the latch bar is rotated to the locked position, the positioning base 321 is clamped and fixed to the flexible worktable 12; when the latch bar is rotated to the released position, the positioning base 321 can be detached from the flexible worktable 12. The mechanical principle of the latch stop 325 is a mature mechanical fixing technology, and will not be elaborated here.

[0043] When the column is long, the first positioning plate 322 alone may not be able to completely stabilize the non-cut end of the column. To solve this problem, the second positioning component 32 also includes a second positioning plate 324. The first positioning plate 322 is vertically positioned on the side of the positioning base 321 away from the cut end of the column, and the second positioning plate 324 is vertically positioned on the side of the positioning base 321 near the cut end of the column. The height of the first positioning plate 322 is greater than the height of the second positioning plate 324. The top of the second positioning plate 324 has a second positioning groove for supporting the column. The width of the second positioning groove matches the width of the first positioning groove 323. By setting the second positioning plate 324, the non-cut end of the column can be segmented and fixed in the length direction. At the same time, the matching widths of the first positioning groove 323 and the second positioning groove provide two support points, making the support more stable, effectively dispersing stress, avoiding stress concentration, and improving the stability and processing accuracy of the column during the cutting process.

[0044] In some optional embodiments, the width of the first positioning groove 323 opened on the first positioning plate 322 in different second positioning components 32 is different along the width direction of the elastic worktable 12, and the width of the second positioning groove opened on the corresponding second positioning plate 324 matches the width of the first positioning groove 323; wherein, positioning grooves of different widths can be selected for columns with different cross-sectional dimensions, so that the same tooling can process columns of various specifications without remanufacturing the entire tooling parts, significantly improving the applicability of the tooling.

[0045] In some embodiments, the clamping assembly 33 includes a manual clamping drive 331, a limiting plate 332, a clamping seat 333, and a pressing block 334; one end of the clamping seat 333 is connected to the manual clamping drive 331, and the other end is provided with a limiting protrusion; the limiting plate 332 is detachably mounted on the elastic worktable 12 and has a limiting hole thereon, and the limiting protrusion is engaged with the limiting hole; the pressing block 334 is screwed to the side of the clamping seat 333 facing the column and is used to directly press the column; the manual clamping drive 331 can selectively lock or release the clamping seat 333 on the elastic worktable 12. The limiting plate 332 is detachably fixed to the elastic worktable 12. Its limiting holes cooperate with the limiting protrusions of the clamping seat 333, providing a clear positioning reference for the clamping seat 333 during installation. This allows for quick alignment of the installation position, preventing rotation or displacement of the clamping seat 333 and ensuring consistent clamping position each time, thus improving the repeatability and positioning accuracy during the cutting process. The clamping block 334 is directly mounted on the side of the clamping seat 333 facing the column and is adjusted by screw connection. It can be fine-tuned according to the shape and thickness of the column, effectively applying a stable clamping force to the side of the column, keeping the column tightly against the elastic worktable 12. This prevents the column from jumping or slipping during cutting, improving cutting stability. The manual clamping drive 331 allows for selective locking or releasing of the clamping seat 333 and the elastic worktable 12, enabling operators to quickly adjust the number or position of clamping components without tools, easily adapting to the processing needs of columns of different specifications and lengths.

[0046] The manual clamping drive component 331 includes a drive handle, a connecting rod, and a locking part. The drive handle is hinged to the connecting rod, which is arranged vertically. The end of the clamping seat 333 away from the limiting protrusion is hinged to the drive handle. The locking part is located at the end of the connecting rod away from the drive handle. When the operator rotates the drive handle downward, the drive handle drives the connecting rod downward, causing the locking part and the clamping seat 333 to work together to apply downward pressure, placing the column and the elastic worktable 12 between the clamping seat 333 and the locking part and subjecting them to clamping force. Subsequently, rotating the drive handle in the opposite direction causes the connecting rod to lift, thereby engaging the locking part with the locking structure at the bottom of the elastic worktable 12, thus locking and fixing the clamping seat 333. Through the above actions, the column can be reliably clamped and kept stable between the clamping seat 333 and the elastic worktable 12. Reversing the operation of the drive handle allows the locking part to disengage from the locking structure, thereby releasing the lock and enabling the quick disassembly of the clamping seat 333.

[0047] In some embodiments, the first positioning component 31 includes a horizontal plate and a vertical plate. The horizontal plate is disposed at one end of the elastic worktable 12 near the cutting mechanism 2, and its upper surface is flush with the upper surface of the elastic worktable 12. The vertical plate is fixedly disposed at the edge of the horizontal plate in the vertical direction, and the two intersect to form a rectangular support side for supporting the cutting end of the column. The upper surface of the horizontal plate is flush with the upper surface of the elastic worktable 12, and the vertical plate is fixed at the edge of the horizontal plate in the vertical direction. The intersection of the two forms a rectangular support side, which is used to stably support the cutting end of the column. By constraining the cutting end of the column in both the horizontal and vertical directions, the cutting accuracy and operational stability are improved. The operation is simple and can adapt to the processing needs of columns of different specifications.

[0048] In some embodiments, the cutting mechanism 2 includes an angle adjustment assembly 21 and a cutting assembly 22. The angle adjustment assembly 21 includes an angle disk 211, an angle adjustment handle 212, and an angle locking component. The angle disk 211 is fixedly installed on one side of the elastic worktable 12 on the base 11, located at the cutting end of the column to be cut, and its output end is connected to the cutting assembly 22. The angle adjustment handle 212 is installed on the angle disk 211, and the angle adjustment handle 212 rotates the angle disk 211 to drive the cutting assembly 22 to adjust the cutting angle. The angle locking component is used to lock the angle disk 211 at the desired cutting angle position. The angle adjustment handle 212 drives the angle disk 211 to rotate freely along the column cutting end to the desired angle, thereby meeting the multi-angle cutting needs of different design requirements and improving the applicability of the tooling. The angle locking component can fix the angle disk 211 at the target cutting angle to prevent deflection or slippage during the cutting process, ensuring cutting dimensional accuracy and product consistency. The operator only needs to rotate the angle adjustment handle 212 to adjust the cutting angle, without the need for manual measurement or the use of auxiliary tools. Quickly switching the cutting angle not only simplifies the operation process but also significantly improves work efficiency. Specifically, the rotation angle range of the angle disk 211 is 0° to 90°.

[0049] Furthermore, the cutting assembly 22 includes a cutting machine 221 and a dust collection assembly. The cutting machine 221 is mounted on the angle plate 211, and its cutting angle is adjusted accordingly. The dust collection assembly is mounted on the cutting machine 221 to collect cutting dust. The cutting machine 221 is fixed to the angle plate 211 and moves synchronously with it to adjust the cutting angle, enabling free adjustment of the cutting end at multiple angles. This ensures precise alignment of the cutting action with the column cutting end, improving processing accuracy and consistency. The dust collection assembly, mounted on the cutting machine 221, collects the dust generated during cutting in real time, preventing dust dispersion, improving the working environment, reducing the risk of operators inhaling dust, and meeting environmental protection and occupational health requirements. The dust collection assembly includes a protective cover for the cutting machine 221 and a vacuum cleaner. The protective cover is positioned on one side of the cutting machine 221 and connected to the vacuum cleaner. During cutting, the protective cover protects the cutting machine 221, while the vacuum cleaner continuously sucks up the dust generated during cutting, achieving centralized collection of cutting dust.

[0050] The following are the specific operating methods for the positioning and cutting fixture:

[0051] S1: Move the elastic worktable 12 in the worktable assembly 1 to the initial position, so that the positioning pin 13 is inserted into the positioning hole on the base 11 furthest from the cutting mechanism 2, and determine the starting position of the elastic worktable 12; confirm that the elastic worktable 12 is not deformed, the surface is free of impurities, the latch stop 325 moves without jamming, the angle disk 211 is free of dust, the display is normal, and the angle is zero.

[0052] S2: Select the second positioning component 32 and clamping component 33 with matching width according to the width of the column to be cut;

[0053] S3: Place the column along the length of the elastic worktable 12 on the elastic worktable 12, so that the cutting end of the column is in contact with the first positioning component 31 near the cutting mechanism 2, and the non-cutting end of the column is in contact with the second positioning component 32; after visually confirming that the two ends are in contact, fix the second positioning component 32 to the elastic worktable 12.

[0054] S4: The column and the elastic worktable 12 are clamped together by the clamping component 33, so that the column is in close contact with the surface of the elastic worktable 12, ensuring the stability of the column position during the cutting process.

[0055] S5: According to the processing requirements, adjust the angle of the angle disk 211 by adjusting the angle adjustment handle 212 so that the cutting angle of the cutting component 22 is consistent with the target processing angle, and lock the angle adjustment component 21 to keep the angle of the cutting component 22 stable;

[0056] S6: Pull out the positioning pin 13, slide the elastic worktable 12 along the length of the base 11 towards the end closer to the cutting mechanism 2 to the position of the color card corresponding to the required cutting length, and then pass the positioning pin 13 through the elastic worktable 12 and insert it into the positioning hole corresponding to the color card to achieve precise positioning of the column cutting length.

[0057] S7: Start the cutting machine 221, complete the cutting of the column along the cutting path, and use the dust collection component to absorb the cutting dust;

[0058] S8: After cutting, the clamping assembly 33 is disassembled by manually clamping the drive unit 331, the column is taken out and transferred to the designated position, the above steps are repeated for the next column to be cut, and the column that has been cut is checked.

[0059] For example, a carbon fiber column with a width of 99mm, a target cutting length of 2412mm, and a cutting angle of 7° is processed using a positioning cutting fixture. The operation process is as follows:

[0060] S1: Move the elastic worktable 12 in the worktable assembly 1 to the initial position, so that the positioning pin 13 is inserted into the positioning hole on the base 11 furthest from the cutting mechanism 2, and confirm that the elastic worktable 12 is not deformed, the surface is free of impurities, the latch stop block moves without jamming, the angle disk 211 is free of dust, the display is normal, and the angle is zero.

[0061] S2: Select the second positioning component 32 and clamping component 33 that match the 99mm wide column;

[0062] S3: Place the column along the length of the elastic worktable 12 on the elastic worktable 12, so that the cutting end of the column is attached to the first positioning component 31 and the non-cutting end is attached to the second positioning component 32. After visually confirming that the two ends are attached, use the latch stop 325 to attach the second positioning component 32 to the elastic worktable 12.

[0063] S4: The column and the elastic worktable 12 are clamped together by the clamping assembly 33, so that the column is in close contact with the surface of the elastic worktable 12.

[0064] S5: According to the processing requirements, adjust the angle adjustment handle 212 to adjust the angle of the angle disc 211 to 7°, and lock it with the angle locking component.

[0065] S6: Pull out the positioning pin 13, slide the elastic worktable 12 along the length of the base 11 to the position of the red color card corresponding to the 2412mm cutting length (for example: the red position corresponds to 2412mm), and then insert the positioning pin 13 into the positioning hole corresponding to the red color card to achieve precise positioning of the column cutting length.

[0066] S7: Start the cutting machine 221, complete the cutting of the column along the cutting path, and use the dust collection component to absorb the cutting dust;

[0067] S8: After cutting, the clamping assembly 33 is disassembled by manually clamping the drive unit 331, and the cut column is taken out to the designated position. The above steps are repeated for the next column to be cut, and the cut column is checked by using an angle ruler, flatness tester and tape measure.

[0068] Through the above experiments, compared with traditional column cutting fixtures, the use of positioning cutting fixtures for column cutting eliminates the need to replace the entire set of fixtures, reducing the changeover time to 0-2 minutes, significantly improving production efficiency and reducing fixture procurement costs. The cutting mechanism's angle adjustment accuracy can reach ±1°, meeting the needs of different bevel cutting angles, and the locking structure is stable, avoiding angle deviation caused by cutting vibration. Color card positioning enables precise cutting of columns of the same size and length, without relying on operator experience, allowing for quick mastery of the operation. Batch processing consistency error is <1mm, and the defect rate can be reduced to 1% or less.

[0069] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A positioning and cutting fixture, characterized in that, include: The workbench assembly (1) includes a base (11), a flexible workbench (12), color cards, and positioning pins (13); the base (11) is fixedly installed, and the flexible workbench (12) is installed on the base (11) and slides back and forth along the length of the base (11); different colors of the color cards are arranged at intervals along the length of one long side of the base (11), and each color corresponds to at least one positioning hole; the positioning pins (13) pass through the flexible workbench (12) and can be selectively inserted into the corresponding positioning holes; The cutting mechanism (2) is fixedly mounted on one side of the workbench assembly (1) and located at the cutting end of the column to be cut. It can adjust and lock the cutting angle. The positioning and clamping mechanism (3) includes a first positioning component (31), multiple second positioning components (32) of different widths, and multiple clamping components (33) of different widths. The first positioning component (31) is fixedly mounted on the elastic worktable (12) near one end of the cutting mechanism (2). The second positioning component (32) is detachably fixed on the elastic worktable (12). The clamping component (33) is detachably fixed on the elastic worktable (12) and located between the first positioning component (31) and the second positioning component (32). The columns of different widths can be selectively used in conjunction with the corresponding width of the second positioning component (32) and the clamping component (33).

2. The positioning and cutting fixture according to claim 1, characterized in that, The second positioning component (32) includes a positioning base (321), a first positioning plate (322), and a latch stop (325). The positioning base (321) is mounted on the elastic worktable (12). The first positioning plate (322) is an L-shaped plate, which is set on the positioning base (321) in the vertical direction. Its horizontal plate surface is parallel to the elastic worktable (12) and extends towards the column cutting end. A first positioning groove (323) is opened on the side of the first positioning plate close to the column cutting end. The first positioning groove (323) engages with the non-cutting end of the column to restrict its movement. The latch stop (325) is set on the positioning base (321). The positioning base (321) is detachably fixed to the elastic worktable (12) by the latch stop (325).

3. The positioning and cutting fixture according to claim 2, characterized in that, The second positioning component (32) further includes a second positioning plate (324). The first positioning plate (322) is vertically positioned on the side of the positioning base (321) away from the column cutting end. The second positioning plate (324) is vertically positioned on the side of the positioning base (321) close to the column cutting end. The height of the first positioning plate (322) is higher than the height of the second positioning plate (324). A second positioning groove is provided on the top of the second positioning plate (324) for supporting the column. The width of the second positioning groove matches the width of the first positioning groove (323).

4. The positioning and cutting fixture according to claim 3, characterized in that, The width of the first positioning groove (323) opened on the first positioning plate (322) in different second positioning components (32) is different along the width direction of the elastic worktable (12), and the width of the second positioning groove opened on the corresponding second positioning plate (324) matches the width of the first positioning groove (323).

5. The positioning and cutting fixture according to claim 1, characterized in that, The clamping assembly (33) includes a manual clamping drive (331), a limiting plate (332), a clamping seat (333), and a pressing block (334). One end of the clamping seat (333) is connected to the manual clamping drive (331) for transmission, and the other end is provided with a limiting protrusion. The limiting plate (332) is detachably installed on the elastic worktable (12) and has a limiting hole thereon. The limiting protrusion is connected to the limiting hole. The pressing block (334) is screwed to the side of the clamping seat (333) facing the column and is used to directly press the column. The manual clamping drive (331) can selectively lock or release the clamping seat (333) on the elastic worktable (12).

6. The positioning and cutting fixture according to claim 5, characterized in that, The clamping seats (333) in the different clamping assemblies (33) have different widths along the width direction of the elastic worktable (12), and each limiting plate (332) cooperates with the clamping seat (333) of its corresponding width and is disposed on the elastic worktable (12).

7. The positioning and cutting fixture according to claim 1, characterized in that, The first positioning component (31) includes a horizontal plate and a vertical plate. The horizontal plate is disposed at one end of the elastic worktable (12) near the cutting mechanism (2), and its upper surface is flush with the upper surface of the elastic worktable (12). The vertical plate is fixedly disposed at the edge of the horizontal plate in the vertical direction, and the two intersect to form a rectangular support side for supporting the cutting end of the column.

8. The positioning and cutting fixture according to claim 1, characterized in that, The cutting mechanism (2) includes an angle adjustment component (21) and a cutting component (22). The angle adjustment component (21) includes an angle disk (211), an angle adjustment handle (212), and an angle locking component. The angle disk (211) is fixedly installed on one side of the elastic worktable (12) on the base (11) and is located at the cutting end of the column to be cut. Its output end is connected to the cutting component (22). The angle adjustment handle (212) is installed on the angle disk (211). The angle adjustment handle (212) rotates the angle disk (211) to drive the cutting component (22) to adjust the cutting angle. The angle locking component is used to lock the angle disk (211) at the position of the required cutting angle.

9. The positioning and cutting fixture according to claim 8, characterized in that, The cutting assembly (22) includes a cutting machine (221) and a dust collection assembly. The cutting machine (221) is mounted on the angle plate (211) and the cutting angle is adjusted with the angle plate (211). The dust collection assembly is mounted on the cutting machine (221) and is used to collect cutting dust.

10. The positioning and cutting fixture according to any one of claims 1-9, characterized in that, The flexible worktable (12) has a handle (14) on one side along its length.

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