A metal pipe machining circular cutter for preventing deformation of a metal pipe and an operating method thereof

Abstract

This invention relates to the technical field of metal tube processing circular cutting machines, specifically a metal tube processing circular cutting machine and its operating method for preventing metal tube deformation. It includes a servo motor, a reverse rotation shaft, a circular plate clamping table, and a reverse rotation assembly. In this invention, when the built-in hydraulic rod is supported on the inner wall of the metal tube and the saponification liquid tube, the saponification liquid tube, atomizing nozzle, and annular cooling pipe can make close contact with the inner wall of the larger and longer metal tube, expanding the cooling area of ​​the inner wall. This allows the semi-circular cooling nozzle to spray onto areas with excessively high temperatures at the cutting point, cooling and reducing the temperature of the inner wall of the larger and longer metal tube, preventing heat deformation. The built-in hydraulic rod on the clamping table hydraulically extends and snaps onto the metal tube wall for double-layer clamping, improving the clamping stability of the metal tube and preventing heat expansion and deformation of the inner wall of the larger and longer metal tube during the cutting and clamping process.

Description

Technical Field

[0001] This invention relates to the technical field of metal tube processing circular cutting machines, specifically a metal tube processing circular cutting machine and its operating method that prevents metal tube deformation. Background Technology

[0002] After the metal pipe processing circular cutter inserts the pipe into the clamping block, the electric telescopic rod first pushes the movable block to tighten the inner wall of the pipe; then the handle bolt is tightened to make the arc plate clamp the outer wall of the pipe, and the double fixation counteracts the radial force of cutting; during cutting, the motor drives the pipe to rotate, and the cutting mechanism feeds along the slide table to achieve uniform cutting around the circumference, completely avoiding local stress deformation. The worktable is equipped with a waste discharge slot, and a collection box with a filter plate is installed below to separate metal scraps and coolant; the semi-circular annular cooling nozzle achieves surrounding cooling, reduces the risk of thermal deformation, and realizes the recycling of coolant.

[0003] Existing metal tube processing circular cutting machines use a single-layer electric telescopic rod clamping mechanism on the inner wall. The clamping area of ​​the electric telescopic rod is limited, making it difficult to apply to larger and longer metal tubes. This leads to easy vibration, displacement, and deformation during the metal tube processing. The semi-circular cooling nozzle has a limited spraying area, and the temperature at some cutting points is too high, causing the clamping mechanism to easily expand and deform due to heat during the cutting and clamping process. Summary of the Invention

[0004] The purpose of this invention is to provide a metal tube processing circular cutting machine that prevents metal tube deformation, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A metal tube processing circular cutting machine for preventing deformation of metal tubes includes a servo motor, a reverse rotation shaft, a circular plate clamping table, and a reverse rotation assembly. The reverse rotation shaft is mounted on the drive unit of the servo motor, and the circular plate clamping table is fixed on the reverse rotation shaft. The reverse rotation assembly is equipped with both the reverse rotation shaft and the circular plate clamping table at its rotating part. The reverse rotation assembly consists of a servo motor and a reverse rotation shaft. The servo motor drives the reverse rotation shaft to rotate the circular plate clamping table in the opposite direction to the metal tube, opposite to the direction of the cutting blade. The machine also includes... A circular cooling assembly is mounted on the circular plate clamping platform; A built-in clamping assembly is provided on the circular plate clamping platform; The circular plate clamping platform is equipped with an external hydraulic rod at the hydraulic point, and an internal clamping platform is fixed at the front end of the circular plate clamping platform. An internal hydraulic rod is installed at the hydraulic drive point outside the internal clamping platform, and saponification liquid pipes are distributed and installed on the inner side of the internal hydraulic rod.

[0006] The metal tube processing circular cutting machine for preventing metal tube deformation as described above: the circular plate clamping table and the external hydraulic rod are hydraulically fastened to the inner wall of the metal tube.

[0007] The metal tube processing circular cutting machine for preventing metal tube deformation as described above: the built-in hydraulic rod and the built-in clamping table provide hydraulic support and protection outside the saponification liquid tube.

[0008] The metal tube processing circular cutting machine for preventing metal tube deformation as described above: the circular cutting cooling assembly includes an annular cooling pipe connected to and installed inside the circular plate clamping table, an atomizing nozzle is provided at the connection point on the annular cooling pipe, and a connecting pipe is installed at the threaded end of the annular cooling pipe.

[0009] The metal tube processing circular cutting machine for preventing metal tube deformation as described above: the annular cooling pipe and the atomizing nozzle are distributed around the built-in hydraulic rod and the built-in clamping table.

[0010] The metal tube processing circular cutting machine for preventing metal tube deformation as described above: the built-in clamping assembly includes a soft clamp installed inside the built-in clamping table, a pneumatic rod is provided at the drive point of the soft clamp, a pneumatic cylinder is connected to the pneumatic drive point of the pneumatic rod, and a pneumatic pipe is installed at the communication point of the pneumatic cylinder.

[0011] The metal tube processing circular cutting machine for preventing metal tube deformation as described above: the soft clamp and the pneumatic rod are clamped to the inner wall of the metal tube by the pneumatic expansion of the pneumatic cylinder.

[0012] The metal tube processing circular cutting machine for preventing metal tube deformation, as described above, operates as follows: including the following steps: Drive reverse rotation: Start the servo motor to drive the reverse rotation shaft and the circular plate clamping table to rotate in the opposite direction, so that the metal tube installed on the reverse rotation shaft and the circular plate clamping table rotates in the opposite direction to the cutting blade, so that the cutting force is evenly distributed and local overheating and stress are avoided; Clamping and fixing metal tubes: If the diameter of the metal tube opening is smaller than the outer diameter of the built-in clamping table, put the metal tube on the built-in clamping table, activate the built-in hydraulic rod to extend and retract hydraulically, and clamp and fix it on the inner side of the metal tube wall. If the diameter of the metal pipe opening is greater than or equal to the outer diameter of the built-in clamping platform, first install the metal pipe opening into the inside of the circular plate clamping platform, then activate the external hydraulic rod hydraulic buckle to provide internal support and clamping on the inner wall of the metal pipe, and at the same time activate the built-in hydraulic rod hydraulic telescopic buckle on the metal pipe wall to form a double-layer clamping. Cooling and temperature reduction: The built-in hydraulic rod is activated to support the inner wall of the metal tube and the saponification liquid tube, so that the saponification liquid tube sprays liquid onto the metal tube wall for initial cooling; If the length of the metal tube exceeds the cooling coverage of the saponified liquid tube, activate the circular cooling assembly: the annular cooling tube is extended through the connecting tube, so that the atomizing nozzle and the annular cooling tube are distributed on the inner wall of the metal tube. The atomizing nozzle sprays the cooling liquid, expanding the cooling area of ​​the inner wall of the metal tube and preventing the inner wall from deforming due to heat. The pneumatic cylinder is activated, which drives the soft clamp and pneumatic rod to expand through the pneumatic pipe. It is supported inside the metal tube and works with the built-in hydraulic rod to expand the clamping area and prevent the metal tube from vibrating and shifting during processing, which could cause cutting deformation.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: When a metal tube with a large diameter is installed on the circular plate clamping table, the pneumatic cylinder and pneumatic pipe drive the soft clamp and pneumatic rod to expand and clamp the inner wall of the metal tube with a large diameter. At the same time, the built-in hydraulic rod on the built-in clamping table can also be hydraulically telescopically snapped onto the metal tube wall. This changes the single-layer electric telescopic rod clamping structure used in the metal tube processing circular cutting machine. Instead, it is replaced by the built-in clamping table, soft clamp and pneumatic rod, which expands the clamping area of ​​the electric telescopic rod, making it suitable for larger and longer metal tubes. The built-in clamping table, soft clamp and pneumatic rod further stabilize the clamping on the inner wall of the longer metal tube, preventing vibration, displacement and cutting deformation during the metal tube processing.

[0014] When the built-in hydraulic rod is supported on the inner wall of the metal tube and the saponification liquid tube, the saponification liquid tube, atomizing nozzle, and annular cooling tube can come into close contact with the inner wall of the larger and longer metal tube. This expands the cooling area of ​​the inner wall of the metal tube and allows the semi-circular cooling nozzle to spray onto areas where the temperature is too high at the cutting point. This cools and lowers the temperature of the inner wall of the larger and longer metal tube, preventing it from deforming due to heat. The built-in hydraulic rod on the built-in clamping platform can also hydraulically extend and snap onto the metal tube wall for double-layer clamping, improving the clamping stability of the metal tube and preventing the inner wall of the larger and longer metal tube from expanding and deforming due to heat during the cutting and clamping process. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the circular plate clamping stage of the present invention; Figure 3 This is a schematic diagram of the circular-cut cooling assembly of the present invention; Figure 4 This is a schematic diagram of the structure of the built-in clamping component of the present invention; Figure 5 This is a schematic diagram of the structure of the pneumatic rod of the present invention.

[0016] In the diagram: 1. Servo motor; 2. Reverse rotation axis; 3. Circular plate clamping stage; 4. External hydraulic rod; 5. Saponification liquid pipe; 6. Internal hydraulic rod; 7. Internal clamping stage; 8. Circular cooling pipe; 9. Atomizing nozzle; 10. Connecting pipe; 11. Soft clamp; 12. Pneumatic rod; 13. Pneumatic cylinder; 14. Pneumatic pipe. Detailed Implementation

[0017] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0018] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0019] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0020] Please see Figures 1-5 A metal tube processing circular cutting machine to prevent deformation of metal tubes is proposed, including a servo motor 1, a reverse rotation shaft 2, a circular plate clamping table 3, and a reverse rotation assembly.

[0021] A reverse rotation shaft 2 is installed at the drive point of the servo motor 1, and a circular plate clamping platform 3 is provided at the fixed point of the reverse rotation shaft 2. The reverse rotation assembly is equipped with the reverse rotation shaft 2 and the circular plate clamping platform 3 at the rotation point. A circular cutting cooling assembly is installed on the circular plate clamping platform 3. An internal clamping assembly is provided on the circular plate clamping platform 3. The reverse rotation shaft 2 is mounted on the servo motor 1. The servo motor 1 can drive the reverse rotation shaft 2 and the circular plate clamping table 3 to move in the opposite direction. When the metal tube is mounted on the reverse rotation shaft 2 and the circular plate clamping table 3, it can drive the metal tube to rotate in the opposite direction to the cutting blade, so that the cutting force is evenly distributed and local overheating and stress are avoided. Among them, the hydraulic part of the circular plate clamping platform 3 is equipped with an external hydraulic rod 4, the front end of the circular plate clamping platform 3 is fixed with an internal clamping platform 7, the external hydraulic drive of the internal clamping platform 7 is equipped with an internal hydraulic rod 6, and the saponification liquid pipes 5 are distributed and installed on the inner side of the internal hydraulic rod 6.

[0022] In this embodiment, the built-in clamping platform 7 is installed on the circular plate clamping platform 3, so that the metal tube is fitted on the built-in clamping platform 7 and the metal tube opening is installed inside the circular plate clamping platform 3. The built-in hydraulic rod 6 on the built-in clamping platform 7 can be hydraulically telescopically snapped onto the metal tube wall for internal clamping and fixation. The saponification liquid tube 5 inside the built-in hydraulic rod 6 is evenly distributed on the metal tube wall. When the metal tube is cut, the saponification liquid tube 5 sprays liquid onto the metal tube wall for cooling.

[0023] The circular plate clamping platform 3 and the external hydraulic rod 4 are hydraulically clamped to the inner wall of the metal tube. The metal tube with a larger diameter is installed on the circular plate clamping platform 3. The external hydraulic rod 4 on the circular plate clamping platform 3 is hydraulically clamped to the inside of the metal tube for internal support and clamping. The built-in hydraulic rod 6 on the built-in clamping platform 7 can also be hydraulically telescopically clamped to the metal tube wall for double-layer clamping, which improves the clamping stability of the metal tube.

[0024] The built-in hydraulic rod 6 and the built-in clamping platform 7 provide hydraulic support and protection to the outside of the saponification liquid pipe 5. When the built-in hydraulic rod 6 on the built-in clamping platform 7 can also be hydraulically telescopically snapped onto the metal pipe wall, the built-in hydraulic rod 6 can support the inner wall of the metal pipe and the saponification liquid pipe 5. The saponification liquid pipe 5 can be in close contact with the inner wall of the metal pipe, which facilitates the spraying of cooling liquid from the saponification liquid pipe 5 to prevent deformation and reduce temperature.

[0025] Please refer to Figure 2 and Figure 3 In this embodiment, the circular cooling assembly includes an annular cooling pipe 8 connected to and installed inside the circular plate clamping platform 3. An atomizing nozzle 9 is provided at the connection point on the annular cooling pipe 8, and a connecting pipe 10 is installed at the threaded end of the annular cooling pipe 8.

[0026] The annular cooling pipe 8 is installed inside the circular plate clamping table 3, so that the atomizing nozzle 9 and the annular cooling pipe 8 are installed on the saponification liquid pipe 5. The saponification liquid pipe 5, the atomizing nozzle 9 and the annular cooling pipe 8 can extend the length of the connecting pipe 10. When the metal pipe processing circular cutter cuts larger and longer metal pipes, the saponification liquid pipe 5, the atomizing nozzle 9 and the annular cooling pipe 8 are distributed on the inner wall of the larger and longer metal pipe.

[0027] The annular cooling pipe 8 and the atomizing nozzle 9 are distributed around the built-in hydraulic rod 6 and the built-in clamping platform 7. When the built-in hydraulic rod 6 can support the inner wall of the metal tube and the saponification liquid pipe 5, the saponification liquid pipe 5, the atomizing nozzle 9 and the annular cooling pipe 8 can come into close contact with the inner wall of the larger and longer metal tube, which can expand the cooling area of ​​the inner wall of the metal tube. This allows the semi-circular cooling nozzle to spray onto the parts of the cutting area where the temperature is too high, thereby cooling and reducing the temperature of the inner wall of the larger and longer metal tube and preventing it from deforming due to heat. It also allows the built-in hydraulic rod 6 on the built-in clamping platform 7 to hydraulically extend and snap onto the metal tube wall, preventing the inner wall of the larger and longer metal tube from expanding and deforming due to heat during the cutting and clamping process.

[0028] Please refer to Figure 4 and Figure 5 In this embodiment, the built-in clamping assembly includes a soft clamp 11 installed inside the built-in clamping platform 7. A pneumatic rod 12 is provided at the drive position on the soft clamp 11. A pneumatic cylinder 13 is connected to the pneumatic drive position on the pneumatic rod 12. A pneumatic pipe 14 is installed at the communication position on the pneumatic cylinder 13.

[0029] The soft clamps 11 are distributed and installed on the built-in clamping platform 7, so that the pneumatic rods 12 are distributed and installed on the soft clamps 11. The soft clamps 11 and the pneumatic rods 12 are driven by the pneumatic cylinder 13 to expand and support inside the metal tube. The pneumatic cylinder 13 provides air pressure support through the pneumatic pipe 14.

[0030] The soft clamp 11 and pneumatic rod 12 are pneumatically expanded and clamped to the inner wall of the metal tube by the pneumatic cylinder 13. When the metal tube with a large diameter is installed on the circular plate clamping table 3, the pneumatic cylinder 13 and pneumatic pipe 14 pneumatically drive the soft clamp 11 and pneumatic rod 12 to expand and clamp to the inner wall of the metal tube with a large diameter. At the same time, the built-in hydraulic rod 6 on the built-in clamping table 7 can also be hydraulically telescopically snapped onto the metal tube wall. This changes the single-layer electric telescopic rod clamping structure of the metal tube processing circular cutting machine, replacing it with the built-in clamping table 7, soft clamp 11 and pneumatic rod 12, thus expanding the clamping area of ​​the electric telescopic rod, which is beneficial for the application of larger and longer metal tubes. The built-in clamping table 7, soft clamp 11 and pneumatic rod 12 are further stably clamped to the inner wall of the longer metal tube, preventing vibration, displacement and cutting deformation during the metal tube processing.

[0031] As can be seen from the above, during use, the servo motor 1 can drive the reverse rotation shaft 2 and the circular plate clamping table 3 to move in the opposite direction. When the metal tube is installed on the reverse rotation shaft 2 and the circular plate clamping table 3, it can drive the metal tube to rotate in the opposite direction (opposite to the direction of the cutting blade), so that the cutting force is evenly distributed, avoiding local overheating and stress. The saponification liquid tube 5, the atomizing nozzle 9 and the annular cooling tube 8 can come into close contact with the inner wall of the larger and longer metal tube, which can expand the cooling area of ​​the inner wall of the metal tube. It is also beneficial for the semi-circular cooling nozzle to spray to the part of the cutting area where the temperature is too high, so as to cool down the inner wall of the larger and longer metal tube, prevent the inner wall of the larger and longer metal tube from being deformed by heat, and facilitate the hydraulic telescopic buckle of the built-in hydraulic rod 6 on the built-in clamping table 7 onto the metal tube wall.

[0032] The pneumatic cylinder 13 and pneumatic pipe 14 pneumatically drive the soft clamp 11 and pneumatic rod 12 to expand and clamp the inner wall of the metal pipe with a large pipe diameter. At the same time, the built-in hydraulic rod 6 on the built-in clamping platform 7 can also hydraulically extend and snap onto the metal pipe wall. This changes the single-layer electric telescopic rod clamping structure used in the metal pipe processing circular cutting machine. It is replaced by the built-in clamping platform 7, soft clamp 11 and pneumatic rod 12, which expands the clamping area of ​​the electric telescopic rod and is more suitable for larger and longer metal pipes.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A metal tube processing circular cutting machine for preventing deformation of metal tubes, comprising a servo motor (1), a reverse rotation shaft (2), a circular plate clamping table (3), and a reverse rotation assembly, wherein the reverse rotation shaft (2) is installed at the drive position of the servo motor (1), and the circular plate clamping table (3) is provided at the fixed position of the reverse rotation shaft (2), and the reverse rotation assembly is equipped with the reverse rotation shaft (2) and the circular plate clamping table (3) at the rotation position, the reverse rotation assembly being composed of the servo motor (1) and the reverse rotation shaft (2), wherein the servo motor (1) drives the reverse rotation shaft (2) to drive the circular plate clamping table (3) to rotate in the opposite direction to the metal tube, and opposite to the direction of the cutting blade, characterized in that: It also includes settings, A circular cooling assembly is mounted on the circular plate clamping platform (3); An internal clamping assembly is provided on the circular plate clamping stage (3); The circular plate clamping platform (3) is equipped with an external hydraulic rod (4) at the hydraulic point. The circular plate clamping platform (3) is fixed with an internal clamping platform (7) at the front end. An internal hydraulic rod (6) is installed at the hydraulic drive point outside the internal clamping platform (7). A saponification liquid pipe (5) is distributed and installed on the inner side of the internal hydraulic rod (6). The internal clamping assembly includes a soft clamp (11) installed inside the internal clamping platform (7). A pneumatic rod (12) is provided at the drive point on the soft clamp (11). A pneumatic cylinder (13) is connected to the pneumatic drive point on the pneumatic rod (12). A pneumatic pipe (14) is installed at the communication point on the pneumatic cylinder (13).

2. The metal tube processing circular cutting machine for preventing metal tube deformation according to claim 1, characterized in that, The circular plate clamping platform (3) and the external hydraulic rod (4) are hydraulically fastened to the inner wall of the metal tube.

3. A metal tube processing circular cutting machine for preventing metal tube deformation according to claim 2, characterized in that, The built-in hydraulic rod (6) and the built-in clamping table (7) are hydraulically supported and protected outside the saponification liquid pipe (5).

4. A metal tube processing circular cutting machine for preventing metal tube deformation according to claim 3, characterized in that, The circular cooling assembly includes an annular cooling pipe (8) connected to the inside of the circular plate clamping platform (3), an atomizing nozzle (9) is provided at the connection point of the annular cooling pipe (8), and a connecting pipe (10) is installed at the threaded end of the annular cooling pipe (8).

5. A metal tube processing circular cutting machine for preventing metal tube deformation according to claim 4, characterized in that, The annular cooling pipe (8) and the atomizing nozzle (9) are distributed around the built-in hydraulic rod (6) and the built-in clamping platform (7).

6. A metal tube processing circular cutting machine for preventing metal tube deformation according to claim 5, characterized in that, The soft clamp (11) and the pneumatic rod (12) are clamped to the inner wall of the metal tube by the pneumatic expansion of the pneumatic cylinder (13).

7. An operating method for a metal tube processing circular cutting machine to prevent metal tube deformation, applied to the metal tube processing circular cutting machine to prevent metal tube deformation as described in claim 6, characterized in that, The operating method is as follows: including the following steps: Drive reverse rotation: Start the servo motor (1) to drive the reverse rotation shaft (2) and the circular plate clamping table (3) to rotate in the opposite direction, so that the metal tube installed on the reverse rotation shaft (2) and the circular plate clamping table (3) rotates in the opposite direction to the cutting blade, so that the cutting force is evenly distributed and local overheating and stress are avoided; Clamping and fixing metal pipe: If the diameter of the metal pipe opening is smaller than the outer diameter of the built-in clamping platform (7), put the metal pipe on the built-in clamping platform (7), start the hydraulic extension and retraction of the built-in hydraulic rod (6), and clamp and fix it on the inner side of the metal pipe wall; If the diameter of the metal pipe opening is greater than or equal to the outer diameter of the built-in clamping platform (7), first install the metal pipe opening into the round plate clamping platform (3), start the external hydraulic rod (4) hydraulic buckle to perform internal support clamping on the inner wall of the metal pipe, and at the same time start the built-in hydraulic rod (6) hydraulic telescopic buckle on the metal pipe wall to form a double-layer clamping. Cooling: Start the built-in hydraulic rod (6) to support the inner wall of the metal tube and the saponification liquid tube (5), so that the saponification liquid tube (5) sprays liquid onto the metal tube wall for initial cooling; If the length of the metal tube exceeds the cooling coverage of the saponification liquid tube (5), the circular cooling assembly is activated: the annular cooling tube (8) is extended through the connecting tube (10), so that the atomizing nozzle (9) and the annular cooling tube (8) are distributed on the inner wall of the metal tube, the atomizing nozzle (9) sprays the cooling liquid, expands the cooling area of ​​the inner wall of the metal tube, and prevents the inner wall from deforming due to heat. Start the pneumatic cylinder (13), which drives the soft clamp (11) and pneumatic rod (12) to expand through the pneumatic pipe (14), supporting them inside the metal tube. In conjunction with the built-in hydraulic rod (6), the clamping area is expanded to prevent the metal tube from vibrating and shifting during processing, which would cause cutting deformation.

Images