Metal pipe cutting positioning structure
By introducing a pipe positioning component and an anti-tilting limiting component into the metal pipe cutting device, and using a drive screw and a contact plate to perform multi-point positioning of the metal pipe, the tilting problem caused by the traditional positioning structure is solved, and higher cutting accuracy and flatness are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-14
AI Technical Summary
Existing metal pipe cutting and positioning devices have insufficient clamping force, which causes the pipe to easily lift during the cutting process, affecting the flatness and accuracy of the cut.
The pipe positioning assembly and the pipe anti-tilting limit assembly are used. The positioning contact block and the anti-tilting contact plate are driven by the drive screw to perform multi-point positioning on both sides and top of the metal pipe, so as to ensure that the pipe remains stable during cutting.
It improves the flatness and precision of metal pipe cutting, prevents the pipe from warping during the cutting process, and meets the user's needs.
Smart Images

Figure CN224115285U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe cutting technology, specifically a positioning structure for cutting metal pipes. Background Technology
[0002] Metal pipes include steel pipes, copper pipes, brass pipes, lead pipes, aluminum pipes, and various composite metal pipes. Due to their high rigidity and long service life, metal pipe fittings are widely used in various construction projects, natural gas pipelines, heating pipelines, water and electricity pipelines, and are also extensively used in shipbuilding. Before specific applications, metal pipes need to be processed, and cutting is one of the common processing methods.
[0003] A search revealed that this utility model relates to the field of positioning devices, specifically Chinese Patent Publication No. CN 220717906 U, and discloses a positioning device for metal pipe cutting. This device solves the problem of existing metal pipe cutting devices being unable to accurately position the angle of the metal pipe. It includes a positioning mechanism connected to the top of the cutting machine base. The positioning mechanism consists of a positioning support assembly and a positioning adjustment assembly. The positioning adjustment assembly comprises a support base, a threaded sleeve, an adjusting screw, a handwheel, a connecting block, a connecting sleeve, a movable connecting shaft, and a limiting pressure plate. The support base is fixedly connected to one end of the top of the cutting machine base. The adjusting screw passes through the threaded sleeve. The handwheel is fixedly connected to one end of the adjusting screw. The connecting block is movably connected to the other end of the adjusting screw. The connecting sleeve is movably connected to the connecting block via the movable connecting shaft. The limiting pressure plate is fixedly connected to one end of the connecting sleeve. This positioning device can accurately position the angle of the metal pipe and can cooperate with the cutting mechanism to cut various shapes of the metal pipe.
[0004] The pipe cutting device in the aforementioned patent still has certain shortcomings. In actual use, the existing metal pipe cutting positioning device mostly uses clamping plates for positioning. The clamping plates can only fix the pipe on both sides and cannot be used with too much force to prevent the pipe from deforming. However, when the cutting blade comes into contact with the pipe, the clamping force is too small, which can easily cause one end of the pipe to lift up during the cutting process, thus affecting the flatness of the pipe end and reducing the cutting accuracy, which does not meet the user's needs. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a metal pipe cutting positioning structure. This solves the problem that existing metal pipe cutting positioning devices, in practical use, mostly rely on clamping plates for positioning. However, these clamping plates can only fix the pipe to both sides and cannot apply excessive force to prevent deformation. When the cutting blade contacts the pipe, the clamping force is too weak, easily causing one end of the pipe to lift up during cutting, thus affecting the flatness of the pipe opening and reducing cutting accuracy, failing to meet user requirements.
[0006] This utility model provides the following technical solution: a metal pipe cutting and positioning structure, including a processing table, with support legs evenly arranged around the bottom of the processing table, a cutting machine body installed in the middle of the top of the processing table, a cutting slit opened in the middle of the top of the processing table, a pipe positioning component arranged on the side of the cutting machine body, and a pipe anti-warping limiting component arranged on the pipe positioning component.
[0007] The pipe positioning assembly includes a first abutment plate disposed on one side of the cut seam and a second abutment plate disposed on the other side of the cut seam. A side connecting seat is disposed on the side of the first abutment plate. Two limiting slots are symmetrically opened on the side of the side connecting seat. A positioning abutment block is slidably inserted into each limiting slot. A drive screw hole is opened on the inner wall of each limiting slot. A drive screw is rotatably connected to the side of the positioning abutment block. The end of the drive screw passes through the positioning abutment block.
[0008] The anti-warping limiting assembly for the pipe includes a top limiting plate disposed on the upper side of the end of the side connecting seat. A first limiting groove is provided at one end of the top side of the second abutment plate, and a second limiting groove is provided at one end of the top side of the side connecting seat. Two connecting sliders are symmetrically disposed on both sides of the bottom end of the top limiting plate. The connecting sliders are slidably inserted into the first limiting groove and the second limiting groove, respectively. An anti-warping abutment plate is provided at the bottom of the top limiting plate.
[0009] Preferred technical solution 1: The top of the anti-warping contact plate is rotatably provided with an abutment screw, and the abutment screw thread passes through the middle of the top side limiting plate.
[0010] Preferred technical solution 2: The sidewalls of both the positioning contact block and the first contact plate are curved in an arc shape.
[0011] Preferred technical solution 3: A groove is provided on the side of the middle part of the side connecting seat.
[0012] This solution ensures that the cutting blade on the cutting machine body will not be obstructed by the side connector when cutting the pipe.
[0013] Preferred technical solution four: The longitudinal sections of the first limiting slide, the second limiting slide, and the connecting slider are all trapezoidal in shape.
[0014] This design ensures that the top side limiting plate will not detach when the second contact plate and the top of the side connecting seat slide.
[0015] Preferred technical solution five: The bottom end of the anti-warping contact plate is curved in an arc shape.
[0016] This solution enables the anti-warping contact plate to adhere to and limit the top of the pipe to be cut under the drive of the contact screw.
[0017] Compared with the prior art, the present invention provides a metal tube cutting and positioning structure, which has the following advantages:
[0018] (1) This utility model provides a pipe positioning component and a pipe anti-tilting limiting component on the processing table. The two positioning contact blocks in the pipe positioning component can, under the push of the drive screw, cooperate with the sides of the first contact plate and the second contact plate to abut and limit the two sides of the metal pipe placed at the bottom of the cutting machine body, ensuring that the two sides of the metal are more straight after being limited. The bottom of the top limiting plate in the pipe anti-tilting limiting component is provided with an anti-tilting contact plate. Under the push of the contact screw, the anti-tilting contact plate abuts and limits the top side of the metal pipe again, so that the metal pipe is accurately positioned when the cutting machine body is cutting, thereby avoiding the occurrence of one end of the metal pipe tilting when it is cut by the cutting machine body, effectively improving the cutting flatness of the metal pipe opening, and making it more convenient for users to cut and use. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0020] Figure 2 This is an exploded side view of the structure of this utility model;
[0021] Figure 3 For the present utility model Figure 1 Exploded view of the anti-warping and limiting component for medium-sized pipes;
[0022] Figure 4 For the present utility model Figure 3 Enlarged view of the structure of the top side limiting plate.
[0023] In the diagram: 1. Processing table; 2. Support leg; 3. Cutting machine body; 4. Cutting seam; 5. Pipe positioning assembly; 6. Pipe anti-warping limit assembly;
[0024] 501. First contact plate; 502. Second contact plate; 503. Side connecting seat; 504. Limiting slot; 505. Positioning contact block; 506. Drive screw hole; 507. Drive screw;
[0025] 601. Top side limiting plate; 602. First limiting slide groove; 603. Second limiting slide groove; 604. Connecting slider; 605. Anti-warping contact plate; 606. Contact screw. Detailed Implementation
[0026] Please see Figure 1-4 ,
[0027] Example 1: A metal pipe cutting and positioning structure includes a processing table 1, support legs 2 evenly arranged around the bottom of the processing table 1, a cutting machine body 3 installed in the middle of the top of the processing table 1, a cutting slit 4 opened in the middle of the top of the processing table 1, a pipe positioning component 5 arranged on the side of the cutting machine body 3, and a pipe anti-warping limiting component 6 arranged on the pipe positioning component 5.
[0028] The pipe positioning assembly 5 includes a first abutment plate 501 disposed on one side of the cut seam 4 and a second abutment plate 502 disposed on the other side of the cut seam 4. A side connecting seat 503 is disposed on the side of the first abutment plate 501. Two limiting slots 504 are symmetrically opened on the side of the side connecting seat 503. A positioning abutment block 505 is slidably inserted into each limiting slot 504. A drive screw hole 506 is opened on the inner wall of each limiting slot 504. A drive screw 507 is rotatably connected to the side of the positioning abutment block 505. The end of the drive screw 507 passes through the positioning abutment block 505.
[0029] The pipe anti-warping limiting component 6 includes a top side limiting plate 601 disposed on the upper side of the end of the side connecting seat 503. A first limiting groove 602 is provided at one end of the top side of the second abutment plate 502, and a second limiting groove 603 is provided at one end of the top side of the side connecting seat 503. Two connecting sliders 604 are symmetrically arranged on both sides of the bottom end of the top side limiting plate 601. The connecting sliders 604 are slidably inserted into the first limiting groove 602 and the second limiting groove 603 respectively. An anti-warping abutment plate 605 is provided at the bottom of the top side limiting plate 601, and an abutment screw 606 is rotatably provided at the top of the anti-warping abutment plate 605. The abutment screw 606 is threaded through the middle of the top side limiting plate 601.
[0030] The sidewalls of both the positioning contact block 505 and the first contact plate 501 are curved in an arc shape.
[0031] Example 2: The difference between this example and Example 1 is that a groove is provided on the side of the middle part of the side connecting seat 503.
[0032] This ensures that the cutting blade on the cutting machine body 3 will not be obstructed by the side connecting seat 503 when cutting the pipe.
[0033] Example 3: The difference between this example and Example 1 is that the longitudinal sections of the first limiting groove 602, the second limiting groove 603 and the connecting slider 604 are all trapezoidal.
[0034] This ensures that the top side limiting plate 601 will not fall off when sliding on top of the second contact plate 502 and the side connecting seat 503.
[0035] Example 4: The difference between this example and Example 1 is that the bottom end of the anti-warping contact plate 605 is curved.
[0036] This allows the anti-warping contact plate 605 to adhere to and be limited against the top of the pipe to be cut under the drive of the contact screw 606.
[0037] In this embodiment, existing metal pipe cutting positioning devices, when used in practice, mostly rely on clamping plates for positioning. The clamping plates can only fix the pipe on both sides and cannot be used with excessive force to prevent pipe deformation. However, when the cutting blade contacts the pipe, the clamping force is too small, which can easily cause one end of the pipe to lift up during the cutting process, thus affecting the flatness of the pipe opening and reducing the cutting accuracy, which does not meet the user's needs.
[0038] In summary, in practical implementation, when a user needs to cut a metal pipe, the user first needs to insert the metal pipe into the bottom of the cutting machine body 3, and then make the side wall of the metal pipe fit against the first contact plate 501 and the second contact plate 502. The user then rotates the drive screw 507, which pushes the positioning contact block 505 inserted in the limiting slot 504 to abut and limit the side wall of the pipe, thereby accurately positioning the metal pipe to be cut to the bottom of the cutting machine body 3.
[0039] The pipe positioning assembly 5 is also equipped with a pipe anti-tilting limiting assembly 6. The top side limiting plate 601 of the pipe anti-tilting limiting assembly 6 is set on the top side of the side connecting seat 503 and the end of the second contact plate 502. The bottom end of the top side limiting plate 601 is symmetrically provided with two connecting sliders 604. The connecting sliders 604 are respectively inserted into the first limiting groove 602 and the second limiting groove 603, so that the top side limiting plate 601 can be located on the side of the cutting point of the pipe to be cut. The user can rotate the contact screw 606 threaded through the top side limiting plate 601, and the contact screw 606 pushes the anti-tilting contact plate 605 to abut and limit the top side of the pipe. This makes the pipe more stable when it is cut and resisted by the cutting machine body 3, and prevents one end from tilting and causing the pipe opening to tilt. This makes the metal pipe accurately positioned during the cutting process, ensuring higher cutting accuracy and making it suitable for user cutting.
Claims
1. A metal tube cutting and positioning structure, comprising a processing table (1), characterized in that: Support legs (2) are evenly arranged around the bottom of the processing table (1). A cutting machine body (3) is installed in the middle of the top of the processing table (1). A cutting slit (4) is opened in the middle of the top of the processing table (1). A pipe positioning component (5) is arranged on the side of the cutting machine body (3). A pipe anti-warping limiting component (6) is arranged on the pipe positioning component (5). The pipe positioning assembly (5) includes a first abutment plate (501) disposed on one side of the cutting seam (4), and a second abutment plate (502) disposed on the other side of the cutting seam (4). A side connecting seat (503) is disposed on the side of the first abutment plate (501). Two limiting slots (504) are symmetrically opened on the side of the side connecting seat (503). A positioning abutment block (505) is slidably inserted into each of the limiting slots (504). A drive screw hole (506) is opened on the inner wall of each limiting slot (504). A drive screw (507) is rotatably connected to the side of the positioning abutment block (505). The end of the drive screw (507) passes through the positioning abutment block (505). The anti-warping limiting assembly (6) for pipes includes a top limiting plate (601) disposed on the upper side of the end of the side connecting seat (503). A first limiting groove (602) is provided at one end of the top side of the second abutment plate (502), and a second limiting groove (603) is provided at one end of the top side of the side connecting seat (503). Two connecting sliders (604) are symmetrically arranged on both sides of the bottom end of the top limiting plate (601). The connecting sliders (604) are slidably inserted into the first limiting groove (602) and the second limiting groove (603) respectively. An anti-warping abutment plate (605) is provided at the bottom of the top limiting plate (601).
2. The metal tube cutting and positioning structure according to claim 1, characterized in that: The top of the anti-warping contact plate (605) is rotatably provided with a contact screw (606), and the contact screw (606) is threaded through the middle of the top side limiting plate (601).
3. The metal tube cutting and positioning structure according to claim 2, characterized in that: The sidewalls of both the positioning contact block (505) and the first contact plate (501) are curved in an arc shape.
4. The metal tube cutting and positioning structure according to claim 3, characterized in that: The side of the side connector (503) has a groove in the middle.
5. The metal tube cutting and positioning structure according to claim 4, characterized in that: The longitudinal sections of the first limiting slide (602), the second limiting slide (603), and the connecting slider (604) are all trapezoidal.
6. The metal tube cutting and positioning structure according to claim 5, characterized in that: The bottom end of the anti-warping contact plate (605) is curved.
Citation Information
Patent Citations
Positioning device for metal pipe cutting
CN220717906U