A cutting device for the production and processing of irregularly shaped tubes
By designing the fixing and cutting components, the problem of unstable clamping caused by the irregular shape of the tube during the cutting process was solved, achieving precise positioning and high-precision cutting, thus improving safety and cutting quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU HAIZHUANG MASCH MFG CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-26
AI Technical Summary
Due to their irregular shape, traditional clamping methods cannot provide uniform support for irregularly shaped tubes, leading to swaying or displacement, resulting in localized stress concentration, reduced cutting accuracy, and safety hazards.
By employing a combination of fixing and cutting components, including a fixing ring, fixing frame, spring, and fixing post, the spring force adaptively clamps the recessed part of the irregular tube. Combined with a threaded rod driving the fixing block and fixing rod, precise positioning and stable clamping are achieved.
It improves the stability of fixing irregular tubes and the cutting accuracy, avoids clamping offset and cut tilt, and enhances the safety and consistency of cutting.
Smart Images

Figure CN224273720U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of irregular tube cutting, and in particular to a cutting device for the production and processing of irregular tubes. Background Technology
[0002] Shaped tubes are seamless steel pipes produced by cold drawing into various shapes. Shaped tubes are generally distinguished by their cross-sectional area. In terms of material, they can be divided into stainless steel shaped tubes, aluminum alloy shaped tubes, and plastic shaped tubes. Shaped seamless steel pipes are widely used in various structural components, tools, and mechanical parts. Compared with round tubes, shaped tubes generally have a larger moment of inertia and section modulus, and have greater bending and torsional resistance, which can greatly reduce structural weight and save steel. The development of shaped tubes is mainly about the development of product varieties, including cross-sectional shape, material, and performance. Extrusion, skew die rolling, and cold drawing are effective methods for producing shaped tubes, which are suitable for producing shaped tubes with various cross-sections and materials. However, stainless steel shaped tubes need to be cut by cutting equipment during production and processing.
[0003] Irregular tube cutting equipment refers to processing equipment specifically designed for cutting non-circular cross-section tubes (such as elliptical, polygonal, special arc shapes, etc.). This type of equipment is usually designed for the special geometry and cutting requirements of irregular tubes.
[0004] Due to their irregular shape, irregularly shaped tubes are difficult to clamp using traditional clamping methods (such as V-blocks and mechanical grippers) to provide uniform support, which can easily cause swaying or displacement. Furthermore, when the clamping force is too large or uneven, stress concentration can easily occur in the weak parts of the irregularly shaped tube, leading to local deformation, reduced cutting accuracy, and possible tilting or dimensional deviations in the cut. In some cases, the vibration of the tube can even cause safety accidents. This is more pronounced for thin-walled irregularly shaped tubes, which may require secondary processing and repair. Utility Model Content
[0005] The purpose of this utility model is to provide a cutting device for the production and processing of irregularly shaped tubes, so as to solve the problems mentioned in the background art.
[0006] The technical solution adopted in this utility model is:
[0007] A cutting device for producing and processing irregularly shaped tubes, comprising:
[0008] Cut components;
[0009] The cutting assembly includes: a cutting machine body;
[0010] A second fixing plate is slidably placed on the upper surface of the cutting machine body; a shaped tube is placed in the middle of the second fixing plate; a fixing assembly includes:
[0011] A retaining ring is fixed to one side of the second fixing plate;
[0012] A fixed frame is fixed to the four sides of the second fixed plate;
[0013] The fixed block is movable and placed inside the fixed frame.
[0014] Mounting holes are made inside the fixing block;
[0015] The spring is fixedly installed inside the mounting hole;
[0016] A fixed post is fixedly connected to one end of the spring, and the fixed post is in contact with the outer surface of the shaped tube.
[0017] Optionally, a first fixing plate is fixed to one side of the upper surface of the cutting machine body, a shaped tube is slidably placed in the center of the first fixing plate, and a laser cutting head is movably installed on one side of the cutting machine body.
[0018] Optionally, a first threaded hole is provided in the middle of one side of the upper and lower fixing frames, and a first threaded rod is threaded through the inside of the first threaded hole.
[0019] Optionally, a first bearing is rotatably passed through one side of the first threaded rod, and one side of the first bearing is fixed to the middle of one side of the fixing block.
[0020] Optionally, the first threaded holes of the two fixed frames on the left and right sides are threaded through a second threaded rod, and one end of the second threaded rod is rotatably threaded through a second bearing.
[0021] Optionally, a fixing rod is fixed to one side of the second bearing, and one side of the fixing rod contacts both sides of the shaped tube.
[0022] Optionally, an adjustment assembly is also included; the adjustment assembly includes: a mounting plate, fixed to both sides of the cutting machine body; a motor, fixed to one side of the mounting plate; a lead screw, fixed to the output end of the motor, and the lead screw rotates through the mounting plate; and a movable block, threaded through the outer surface of the lead screw, and the movable block is fixed to one side of the second fixed plate.
[0023] Optionally, a limiting rod is fixed in the middle of the mounting plate on the other side, and the middle of the limiting rod slides through the limiting block, with one side of the limiting block fixed to one side of the second fixing plate.
[0024] Compared with the prior art, the beneficial effects of this utility model are:
[0025] By using a cutting and fixing assembly, when cutting irregularly shaped tubes, the operator first places the tube between the first and second fixing plates. Then, the first threaded rod is rotated. With the connection between the first bearing and the first threaded hole, the rotation of the first threaded rod drives the fixing block to rotate. The movement of the fixing block drives the spring and the fixing post to move synchronously. Under the elastic force of the spring, the fixing post will lock into the recess of the irregularly shaped tube, fixing the tube in place. Then, the second threaded rod is rotated, and the second threaded rod drives the fixing rod to lock into both sides of the outer surface of the irregularly shaped tube. The elastic force of the spring pushes the fixing post, causing it to automatically lock into the recess of the irregularly shaped tube, forming a precise positioning. This self-adaptive locking of the recess of the irregularly shaped tube avoids clamping deviation, improves the stability of the irregularly shaped tube fixing, and solves the problems in the existing technology. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 This is a first-person perspective illustration in this application;
[0028] Figure 2 This is a schematic diagram of the overall structure of the fixing component in this application;
[0029] Figure 3 This is a schematic diagram of the fixed component from another perspective in this application;
[0030] Figure 4 This is an exploded view of the structure of the fixing component in this application;
[0031] Figure 5 This is a schematic diagram of the structure of the adjustment component in this application.
[0032] Figure label:
[0033] 1. Cutting assembly; 11. Cutting machine body; 12. First fixing plate; 13. Second fixing plate; 14. Shaped tube; 15. Laser cutting head;
[0034] 2. Fixing component; 21. Fixing ring; 22. Fixing frame; 221. First threaded hole; 23. First threaded rod; 24. First bearing; 25. Fixing block; 251. Mounting hole; 26. Spring; 27. Fixing post; 28. Second threaded rod; 29. Second bearing; 291. Fixing rod;
[0035] 3. Adjustment assembly; 31. Mounting plate; 32. Motor; 33. Lead screw; 34. Movable block; 35. Limit rod; 36. Limit block; Detailed Implementation
[0036] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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 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.
[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0038] Given that the irregular shape of irregularly shaped tubes makes it difficult for traditional clamping methods (such as V-blocks and mechanical grippers) to provide uniform support, they are prone to shaking or displacement. Furthermore, when the clamping force is too large or uneven, stress concentration can easily occur in the weak parts of the irregularly shaped tube, leading to local deformation, reduced cutting accuracy, possible tilting or dimensional deviations in the cut, and even safety accidents caused by tube vibration. This is more pronounced for thin-walled irregularly shaped tubes, which may require secondary processing and repair.
[0039] like Figure 1-4 As shown, this utility model embodiment provides a cutting device for the production and processing of irregularly shaped tubes, including...
[0040] Cutting component 1;
[0041] Cutting assembly 1 includes: a cutting machine body 11;
[0042] The second fixing plate 13 is slidably placed on the upper surface of the cutting machine body 11; the shaped tube 14 is placed in the middle of the second fixing plate 13;
[0043] A first fixing plate 12 is fixed to one side of the upper surface of the cutting machine body 11, and a shaped tube 14 is slidably placed at the center of the first fixing plate 12. A laser cutting head 15 is movably installed on one side of the cutting machine body 11; fixing assembly 2, which includes:
[0044] The retaining ring 21 is fixed to one side of the second retaining plate 13;
[0045] The fixing frame 22 is fixed to the four sides of the second fixing plate 13;
[0046] Fixed block 25 is movably placed inside fixed frame 22;
[0047] Mounting hole 251 is formed inside the fixing block 25;
[0048] Spring 26 is fixedly installed inside mounting hole 251;
[0049] The fixing post 27 is fixedly connected to one end of the spring 26, and the fixing post 27 is in contact with the outer surface of the shaped tube 14;
[0050] The main body 11 of the cutting machine serves as the support platform for the entire equipment, providing the basic structure for cutting and fixing. The shaped tube 14 is the object to be cut, and stable clamping and precise cutting are achieved through the fixing component 2 and the cutting component 1.
[0051] The fixing ring 21 is used to assist in positioning or limit the radial displacement of the shaped tube 14. The mounting hole 251 provides installation space for the spring 26 and ensures that the fixing post 27 can move axially along the hole. The spring 26 provides elastic force to push the fixing post 27 to press tightly against the outer surface of the shaped tube 14 to achieve self-adaptive pressing. Under the elastic force of the spring 26, the fixing post 27 presses the recess or outer surface of the shaped tube 14 to prevent it from moving or rotating.
[0052] A first threaded hole 221 is provided in the middle of one side of the upper and lower fixing frames 22. A first threaded rod 23 is threaded through the first threaded hole 221. A first bearing 24 is rotatably passed through one side of the first threaded rod 23. One side of the first bearing 24 is fixed to the middle of one side of the fixing block 25. A second threaded rod 28 is threaded through the first threaded hole 221 of the left and right fixing frames 22. A second bearing 29 is rotatably passed through one end of the second threaded rod 28. A fixing rod 291 is fixed to one side of the second bearing 29, and one side of the fixing rod 291 contacts both sides of the shaped tube 14.
[0053] The first threaded hole 221 transmits the rotational motion of the first threaded rod 23 as a linear motion through the threaded engagement, driving the fixed block 25 to move. The first threaded rod 23 drives the fixed block 25 to move along the fixed frame 22 through rotation, thereby pushing the spring 26 and the fixed column 27 to press the shaped tube 14. The second threaded rod 28 drives the fixed rod 291 to move along the fixed frame 22 through rotation, pressing the two sides of the shaped tube 14 from the outside.
[0054] In use, when it is necessary to cut the irregular tube 14, the worker first places the irregular tube 14 between the first fixing plate 12 and the second fixing plate 13. Then, the first threaded rod 23 is rotated. Under the connection of the first bearing 24 and the first threaded hole 221, the rotation of the first threaded rod 23 will drive the fixing block 25 to rotate. The movement of the fixing block 25 will drive the spring 26 and the fixing post 27 to move synchronously. Under the elastic force of the spring 26, the fixing post 27 will lock into the recess of the irregular tube 14 and fix the irregular tube 14. Then, the second threaded rod 28 is rotated. The second threaded rod 28 drives the fixing rod 291 to lock into both sides of the outer surface of the irregular tube 14. The elastic force of the spring 26 pushes the fixing post 27, so that it automatically locks into the recess of the irregular tube 14, forming a precise positioning, adaptively locking into the recess, avoiding clamping deviation, and improving the stability of fixing the irregular tube 14.
[0055] Specifically, such as Figure 1-5 As shown,
[0056] Adjustment component 3; Adjustment component 3 includes: mounting plate 31, fixed on both sides of the cutting machine body 11; motor 32, fixed on one side of mounting plate 31;
[0057] A lead screw 33 is fixed to the output end of the motor 32 and rotates through the mounting plate 31; a movable block 34 is threaded through the outer surface of the lead screw 33 and is fixed to one side of the second fixed plate 13.
[0058] On the other side, a limiting rod 35 is fixed in the middle of the mounting plate 31, and the middle of the limiting rod 35 slides through the limiting block 36. One side of the limiting block 36 is fixed to one side of the second fixing plate 13.
[0059] The mounting plate 31 serves as the mounting base for the motor 32, lead screw 33, and limit rod 35. The motor 32 acts as a power source to drive the lead screw 33 to rotate. The lead screw 33 converts the rotational motion of the motor into the linear motion of the movable block 34. The limit block 36 slides along the limit rod 35 to ensure the horizontal movement accuracy of the second fixed plate 13.
[0060] In use, the motor 32 is started by an external controller. The motor 32 drives the lead screw 33 to rotate. The rotation of the lead screw 33 synchronously drives the movable block 34 to move horizontally on the outer surface of the lead screw 33. The movable block 34 synchronously drives the second fixed plate 13 to move at a constant speed. The constant speed movement of the second fixed plate 13 drives the irregular tube 14 to move at a constant speed, improving the flatness and dimensional accuracy of the cut, and improving the cutting accuracy of the irregular tube 14.
[0061] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A cutting apparatus for processing of profiled pipes, characterized in that, include: Cut components; The cutting assembly includes: a cutting machine body; a second fixing plate, slidably placed on the upper surface of the cutting machine body; a shaped tube, placed in the middle of the second fixing plate; and a fixing assembly, which includes: A retaining ring is fixed to one side of the second fixing plate; A fixed frame is fixed to the four sides of the second fixed plate; The fixed block is movable and placed inside the fixed frame. Mounting holes are made inside the fixing block; The spring is fixedly installed inside the mounting hole; A fixed post is fixedly connected to one end of the spring, and the fixed post is in contact with the outer surface of the shaped tube.
2. The cutting apparatus for processing of profiled pipes according to claim 1, characterized in that, A first fixing plate is fixed to one side of the upper surface of the cutting machine body, and a shaped tube is slidably placed in the center of the first fixing plate. A laser cutting head is movably installed on one side of the cutting machine body.
3. The cutting apparatus for processing of profiled pipes according to claim 2, characterized in that, A first threaded hole is provided in the middle of one side of the upper and lower fixing frames, and a first threaded rod is threaded through the inside of the first threaded hole.
4. The cutting apparatus for processing of profiled pipes according to claim 3, characterized in that, One side of the first threaded rod is rotatably connected to the first bearing, and one side of the first bearing is fixed to the middle of one side of the fixed block.
5. The cutting apparatus for processing of profiled pipes according to claim 2, characterized in that, The first threaded hole of each of the two fixed frames on the left and right sides is threaded through a second threaded rod, and one end of the second threaded rod is rotatably threaded through a second bearing.
6. The cutting apparatus for processing of profiled pipes according to claim 5, characterized in that, A fixing rod is fixed to one side of the second bearing, and one side of the fixing rod is in contact with both sides of the shaped tube.
7. The cutting apparatus for processing of profiled pipes according to claim 1, characterized in that, It also includes an adjustment assembly; the adjustment assembly includes: a mounting plate, fixed to both sides of the cutting machine body; a motor, fixed to one side of the mounting plate; a lead screw, fixed to the output end of the motor, and the lead screw rotates through the mounting plate; and a movable block, threaded through the outer surface of the lead screw, and the movable block is fixed to one side of the second fixed plate.
8. The cutting apparatus for processing of profiled pipes according to claim 7, characterized in that A limit rod is fixed in the middle of the mounting plate on the other side, and the middle of the limit rod slides through the limit block. One side of the limit block is fixed to one side of the second fixing plate.