High-frequency carbon tube making machine

Abstract

The application relates to the technical field of pipeline cutting, in particular to a high-frequency pipe making machine for automatic production of carbon pipes, which comprises a workbench, a mounting frame is slidably installed on the workbench, two symmetrically-distributed arc-shaped translation plates are arranged on the upper portion of the mounting frame, and the two arc-shaped translation plates are spliced into a circular ring; the inner side of a convex plate one is provided with an arc-shaped clamping plate, and an elastic telescopic rod is fixed between the two; the inner side of the arc-shaped translation plate is provided with an arc-shaped rotating plate which is attached to the arc-shaped translation plate; beneficial effects are as follows: the upper portion of the mounting frame is provided with two symmetrically-distributed arc-shaped translation plates, the inner side of the arc-shaped translation plate is provided with a rotatable arc-shaped rotating plate, the arc-shaped rotating plate is fixed with an arc-shaped side plate on the side, the arc-shaped side plate is provided with a cutting blade on one side, the two arc-shaped clamping plates can clamp the pipe body and move together with the pipe body, and when the device is cutting, the cutting blade moves synchronously with the pipe body, so that the cutting blade cannot be damaged due to misalignment.

Description

Technical Field

[0001] This invention relates to the field of pipe cutting technology, specifically to a high-frequency pipe-making machine for automatic carbon pipe production. Background Technology

[0002] Pipe making machines are mainly used for pipe production, processing metal sheets into shapes through uncoiling, forming, welding, grinding, sizing, straightening, length setting, and cutting.

[0003] In the prior art, Chinese invention patent with publication number CN118455615B discloses a CNC gantry pipe-making machine with high safety. By limiting the two ends of the pipe, it avoids the phenomenon of the outer end of the pipe curling during the cutting process. The pipe feeding is stable, and the pipe cutting process is more stable, thus improving the pipe cutting quality of the pipe-making machine.

[0004] Currently, carbon steel pipes are cut by a cutting device at the tail of the pipe-making machine after forming. However, since the pipes are constantly being conveyed, the blades of traditional cutting equipment tend to shift along the length of the pipe during cutting, which not only easily leads to blade breakage but also results in uneven cuts that affect the quality of the finished product. Therefore, this invention proposes a high-frequency pipe-making machine for automated carbon steel pipe production to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a high-frequency tube-making machine for automatic carbon steel tube production, so as to solve the problem mentioned in the background art that traditional cutting equipment is not convenient for cutting carbon steel tubes in the conveying state.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-frequency tube-making machine for automatic carbon tube production, comprising:

[0007] A workbench is provided with a mounting frame that is slidably mounted on it. The upper part of the mounting frame is provided with two symmetrically distributed arc-shaped sliding plates, and a pipe body is provided between the two arc-shaped sliding plates. The two arc-shaped sliding plates are spliced ​​together to form a ring shape and are concentric with the pipe body.

[0008] A protruding plate is fixedly provided on one side edge of the arc-shaped translation plate. An arc-shaped clamping plate is provided on the inner side of the protruding plate, and an elastic telescopic rod is fixed between the two. The two arc-shaped clamping plates clamp the pipe body from both sides respectively.

[0009] An arc-shaped rotating plate is provided on the inner side of the arc-shaped translation plate and fits therewith. An arc-shaped side plate is fixed on one side of the arc-shaped rotating plate. A cutting blade is installed on the arc-shaped side plate and slides along the radial direction of the arc-shaped rotating plate. A toothed groove is provided on the other side of the arc-shaped rotating plate. The two arc-shaped rotating plates, the two arc-shaped side plates and the two toothed grooves are all spliced ​​into a ring shape.

[0010] Preferably, one end of the arc-shaped side plate surface is fixedly connected with a guide seat, the guide seat is in the shape of a Chinese character "fang", both sides of the inner wall of the guide seat are provided with a radial sliding groove along the radial direction of the arc-shaped side plate, a radial sliding block is slidably installed in the inner cavity of the guide seat, and the surface of the radial sliding block is fixedly provided with a limiting protrusion matched with the radial sliding groove.

[0011] Preferably, one side of the radial sliding block is fixedly provided with a fixed shaft which movably penetrates the middle part of the cutting blade, one end of the guide seat is fixedly provided with a radial air cylinder, and the movable end of the radial air cylinder is fixedly connected with the radial sliding block, the outer side of the cutting blade is provided with a protective cover, and the protective cover is fixedly connected with the fixed shaft.

[0012] Preferably, one side of the cutting blade is fixedly connected with a driven pulley which movably sheaths the outer side of the fixed shaft, the outer side of the driven pulley is drivingly connected with a driving pulley through a belt, and the driving pulley is driven to rotate by a cutting motor fixed to the surface of the protective cover.

[0013] Preferably, the two cutting blades are centrally symmetrically distributed around the center of the pipe body, the width of the cutting edge of the cutting blade is greater than the thickness of the pipe body, and the inner wall of the arc-shaped rotating plate, the inner wall of the arc-shaped side plate and the surface of the driven pulley all leave a gap with the surface of the pipe body.

[0014] Preferably, the inner side wall of the arc-shaped translating plate is fixedly connected with an inner flange, and the cross section of the inner flange is in the shape of a Chinese character "ku". The outer surface of the arc-shaped rotating plate is provided with a guide sliding groove, the inner flange is slidably installed in the inner cavity of the guide sliding groove and matched therewith, one side edge of the arc-shaped translating plate is fixedly provided with a second protruding plate, the second protruding plate is rotatably installed with a driving gear which is in meshing transmission with the tooth groove, the surface of the second protruding plate is fixedly provided with a driving motor, and the output end of the driving motor is fixedly connected with the driving gear.

[0015] Preferably, the mounting frame as a whole is in the shape of a Chinese character "fang" with an opening upward, and both upper ends of the mounting frame are fixedly provided with arc-shaped fixed plates, and the two arc-shaped fixed plates are symmetrically distributed. The middle part of the arc-shaped fixed plate is fixedly provided with a translating air cylinder, and the movable end of the translating air cylinder is fixedly connected with the middle part of the arc-shaped translating plate.

[0016] Preferably, the upper and lower ends of the arc-shaped fixed plate are fixedly and penetratively connected with guide sleeves, the inner cavities of the guide sleeves are movably and penetratively provided with guide connecting rods, and the ends of the two guide connecting rods are respectively fixedly connected with the upper and lower ends of the arc-shaped translating plate.

[0017] Preferably, a rib is fixedly provided at the inner corner of the mounting bracket, and sliding seats are fixedly connected to both ends of the lower part of the mounting bracket. Two guide rails are fixed to the surface of the worktable, and the two sliding seats are slidably connected to the two guide rails respectively. A reset member is fixed to the surface of the worktable, and the movable end of the reset member abuts against the side of the mounting bracket.

[0018] Preferably, the upper and lower end faces of the arc-shaped side plate are respectively provided with positioning grooves and positioning bosses, and the positioning grooves and positioning bosses on the two arc-shaped side plates are respectively inserted and engaged, and the end of the positioning boss is provided with a chamfer.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] This invention features two symmetrically distributed arc-shaped translation plates on the upper part of the mounting frame. A rotatable arc-shaped rotating plate is located inside each arc-shaped translation plate, and an arc-shaped side plate is fixed to the side of the rotating plate. A cutting blade is mounted on one side of each arc-shaped side plate and slides radially along the side plate. A protruding plate is fixed to the side edge of each arc-shaped translation plate, and an arc-shaped clamping plate is connected to the inner side of the protruding plate via an elastic telescopic rod. When the two arc-shaped translation plates approach each other, the two arc-shaped clamping plates clamp the pipe body and move along with the pipe body. Simultaneously, the two arc-shaped translation plates and two arc-shaped rotating plates are spliced ​​into a ring shape. The arc-shaped rotating plate rotates half a circle inside the arc-shaped translation plate, and the two cutting blades can cut half a circle from both sides of the pipe body, thereby cutting the pipe body. During the cutting process, the cutting blades move synchronously with the pipe body and will not be damaged due to misalignment. In addition, the cuts in the pipe body are centrally symmetrically distributed, which can prevent the pipe body from breaking prematurely along the cuts under its own weight. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram showing the separation of the mounting frame and the workbench structure of the present invention;

[0023] Figure 3 This is a schematic diagram showing the connection between the arc-shaped translation plate and the mounting frame structure of the present invention;

[0024] Figure 4 This is a three-dimensional schematic diagram of the arc-shaped translation plate structure of the present invention;

[0025] Figure 5 This is a schematic diagram showing the connection between the arc-shaped translation plate and the arc-shaped rotating plate structure of the present invention;

[0026] Figure 6 This is a schematic diagram showing the separation of the radial slider and guide seat structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the installation of the cutting blade structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the cutting blade of the present invention cutting the pipe body;

[0029] Figure 9 This is a schematic diagram showing the separation of the arc-shaped translation plate and the arc-shaped rotating plate structure of the present invention;

[0030] Figure 10 This is a schematic diagram of the arc-shaped clamping plate of the present invention clamping the pipe body;

[0031] Figure 11 This is a three-dimensional schematic diagram of the positioning groove and positioning boss structure of the present invention.

[0032] In the diagram: 1. Workbench; 11. Guide rail; 12. Reset component; 2. Mounting bracket; 21. Sliding seat; 22. Arc-shaped fixing plate; 23. Rib plate; 24. Guide sleeve; 25. Translation cylinder; 3. Arc-shaped translation plate; 31. Protrusion plate one; 32. Inner flange; 33. Protrusion plate two; 34. Drive gear; 35. Drive motor; 36. Guide connecting rod; 4. Arc-shaped clamping plate; 41. Elastic telescopic rod; 5. Arc-shaped rotating plate; 51. Arc-shaped side plate; 511. Positioning groove; 512. Positioning boss; 52. Guide seat; 521. Radial groove; 522. Radial cylinder; 53. Tooth groove; 54. Guide groove; 6. Radial slider; 61. Fixed shaft; 62. Limiting protrusion; 7. Cutting blade; 71. Driven pulley; 72. Driven pulley; 73. Protective cover; 74. Cutting motor; 8. Pipe body. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1 to 11 The present invention provides a technical solution:

[0035] Example 1: A high-frequency tube-making machine for automatic carbon tube production, comprising: a worktable 1.

[0036] A mounting frame 2 is slidably mounted on the workbench 1. The mounting frame 2 can only slide along the length of the workbench 1. Two symmetrically distributed arc-shaped translation plates 3 are arranged on the upper part of the mounting frame 2, and a pipe body 8 is positioned between the two arc-shaped translation plates 3. The pipe body 8 is parallel to the length of the workbench 1, and is conveyed by a conveying device on a pipe-making machine in the prior art. Figure 1 As shown, the right end of the pipe body 8 is the part to be cut. The pipe body 8 moves horizontally from left to right. In addition, two arc-shaped translation plates 3 are spliced ​​into a ring shape and are concentric with the pipe body 8. The two arc-shaped translation plates 3 can move away from each other or move closer to each other. When they move closer to each other, they can be spliced ​​into a ring shape.

[0037] Secondly, a protruding plate 31 is fixedly installed on one edge of the arc-shaped translation plate 3. An arc-shaped clamping plate 4 is installed on the inner side of the protruding plate 31, and an elastic telescopic rod 41 is fixed between the two. The elastic telescopic rod 41 is a telescopic rod structure known in the prior art, and has a built-in thrust spring. The elastic telescopic rod 41 always remains in an extended state. According to actual needs, hydraulic oil can be added inside the elastic telescopic rod 41 to achieve a buffering and shock absorption effect. Multiple elastic telescopic rods 41 are set and evenly distributed between the protruding plate 31 and the arc-shaped clamping plate 4, on the one hand to avoid the arc-shaped The clamping plate 4 rotates, which reduces the load-bearing capacity of the single elastic telescopic rod 41. The two arc-shaped clamping plates 4 clamp the pipe body 8 from both sides. In the initial state, the two arc-shaped translation plates 3 keep away from each other. When the two arc-shaped translation plates 3 approach each other, the arc-shaped clamping plate 4 first comes into contact with the surface of the pipe body 8 and the two arc-shaped clamping plates 4 clamp the pipe body 8. At this time, the arc-shaped clamping plate 4 moves synchronously with the pipe body 8 under the action of friction. That is to say, the arc-shaped translation plate 3 and the mounting bracket 2 can move synchronously with the pipe body 8.

[0038] Furthermore, an arc-shaped rotating plate 5 is provided on the inner side of the arc-shaped translation plate 3, which is in contact with it. The arc-shaped rotating plate 5 can only slide around the circumference of the arc-shaped translation plate 3 on the inner side of the arc-shaped translation plate 3. An arc-shaped side plate 51 is fixed on one side of the arc-shaped rotating plate 5. The arc-shaped side plate 51 and the arc-shaped rotating plate 5 can slide synchronously. A cutting blade 7 is installed on the arc-shaped side plate 51, and the cutting blade 7 slides along the radial direction of the arc-shaped rotating plate 5. When the cutting blade 7 rotates, it can be used to cut the surface of the pipe body 8. When the arc-shaped rotating plate 5 rotates and slides around the center of the arc-shaped translation plate 3, it can drive the cutting blade 7 to move accordingly, forming a shape like... Figure 8The cutting path shown, and the cutting blade 7 sliding alone along the radial direction of the arc-shaped rotating plate 5 can be used to adjust the cutting depth of the cutting blade 7 on the surface of the pipe body 8. Since the pipe body 8 is a hollow tubular structure, the cutting radius of the cutting blade 7 only needs to be greater than the wall thickness of the pipe body 8 and does not need to be greater than the overall diameter of the pipe body 8. Compared with traditional cutting equipment, the overall size of this device and the size of the cutting blade 7 can be set smaller. On the one hand, it reduces the space occupation, and on the other hand, it reduces the overall weight of the equipment, ensuring that only a relatively small frictional force between the arc-shaped clamping plate 4 and the pipe body 8 can drive the whole device to move. Moreover, the arc-shaped clamping plate 4 only needs to provide a relatively small clamping force to clamp the pipe body 8, and it is more difficult to clamp and deform the pipe body 8 when facing a pipe body 8 with a smaller wall thickness;

[0039] In addition, a tooth groove 53 is provided on the other side surface of the arc-shaped rotating plate 5. The two arc-shaped rotating plates 5, the two arc-shaped side plates 51 and the two tooth grooves 53 are all spliced into a circular ring. After the two arc-shaped translation plates 3 approach each other and are spliced into a circular ring, the two ends of the two arc-shaped rotating plates 5 correspond to each other. At this time, by driving the tooth groove 53 with an external gear, the rotational movement of the arc-shaped rotating plate 5 can be realized, and then the cutting blade 7 can be driven to cut around the circumferential direction of the pipe body 8 on the outside of the pipe body 8. It should be noted that since two cutting blades 7 are provided in this device, the arc-shaped rotating plate 5 of this device only needs to rotate a minimum of 180 degrees. After this device cuts the pipe body 8 once, the positions of the two arc-shaped rotating plates 5 on the inner sides of the two arc-shaped translation plates 3 are interchanged. At this time, even if the two arc-shaped translation plates 相互远离、弧形转板5与弧形平移板3之间也不会发生相互分离,待下一次进行切割时,控制弧形转板5反向旋转一百八十度即可将本装置完全复位,这样便能够避免弧形转板5持续旋转而导致本装置上的线缆发生缠绕。

[0040] To guide the movement of the cutting blade 7, this application also has a guide seat 52 fixedly connected to one end of the surface of the arc-shaped side plate 51. The guide seat 52 is in a "C" shape. Radial sliding grooves 521 along the radial direction of the arc-shaped side plate 51 are opened on both inner walls of the guide seat 52. A radial sliding block 6 is slidably installed in the inner cavity of the guide seat 52. A limiting convex block 62 adapted to the radial sliding groove 521 is fixed on the surface of the radial sliding block 6. The limiting convex block 62 and the radial sliding groove 521 cooperate with each other to guide and limit the sliding of the radial sliding block 6 in the inner cavity of the guide seat 52, so that the radial sliding block 6 can only slide along the radial direction of the arc-shaped rotating plate 5, and the radial sliding block 6 itself is set in a cuboid structure and will not rotate during the sliding process;

[0041] Secondly, a fixed shaft 61 is fixed on one side surface of the radial sliding block 6, and the fixed shaft 61 movably penetrates through the middle of the cutting blade 7, asFigure 7 As shown, the fixed shaft 61 and the radial slider 6 are fixed and cannot rotate on their own. The cutting blade 7 can rotate independently outside the fixed shaft 61. A bearing is provided between the cutting blade 7 and the fixed shaft 61 to reduce the friction generated during rotation. A radial cylinder 522 is fixed at one end of the guide seat 52, and the movable end of the radial cylinder 522 is fixedly connected to the radial slider 6. The radial cylinder 522 is mainly used to drive the radial slider 6 to slide, thereby adjusting the position of the cutting blade 7. After the cutting blade 7 finishes cutting the pipe body 8, the radial cylinder 522 retracts and drives the cutting blade 7 away from the pipe body 8. Then the mounting bracket 2 slides back to reset, so as to facilitate the next cutting operation. A protective cover 73 is provided on the outside of the cutting blade 7, and the protective cover 73 is fixedly connected to the fixed shaft 61. The protective cover 73 is mainly used to shield part of the cutting blade 7 to prevent workers from accidentally touching the edge of the cutting blade 7 and getting injured.

[0042] In order to drive the cutting blade 7 to perform rotary cutting, this application also has a driven pulley 71 fixedly connected to one side of the cutting blade 7, and the driven pulley 71 is movably sleeved on the outside of the fixed shaft 61. The driven pulley 71 and the cutting blade 7 are kept relatively fixed. The outside of the driven pulley 71 is connected to the driving pulley 72 through the belt drive. The driving pulley 72 is driven to rotate by the cutting motor 74 fixed to the surface of the protective cover 73. The cutting motor 74 is mounted on the protective cover 73 and can be kept relatively fixed to the fixed shaft 61. When the cutting motor 74 is working, it drives the driving pulley 72 to rotate, and then drives the driven pulley 71 and the cutting blade 7 to rotate through the belt.

[0043] To ensure a smoother cut on the pipe body 8, the two cutting blades 7 of this application are centrally symmetrically distributed around the center of the pipe body 8. The blade width of the cutting blade 7 is greater than the thickness of the pipe body 8. Figure 8As can be seen, the two cutting blades 7 can cut the pipe body 8 from both sides of the surface of the pipe body 8 respectively, and the uncut areas on the pipe body 8 are also symmetrically distributed about the center. Therefore, before the cutting blades 7 completely cut off the pipe body 8, the pipe body 8 itself always has a certain anti-bending property, which can prevent the front part of the pipe body 8 from bending downward due to its own gravity and causing the pipe body 8 to break along the cutting seam, thus ensuring that the cutting seam of the pipe body 8 by this device is smoother. There are gaps between the inner wall of the arc-shaped rotating plate 5, the inner wall of the arc-shaped side plate 51, and the surface of the driven pulley 71 and the surface of the pipe body 8. When this device is working, except for the cutting of the pipe body 8 by the cutting blades 7 and the clamping of the pipe body 8 by the arc-shaped clamping plate 4, the rest of the structures are in a non-contact state with the pipe body 8. When the cutting blades 7 complete the cutting work, the two arc-shaped translation plates 3 move away from each other, and then the arc-shaped clamping plate 4 separates from the pipe body 8, and the frictional force between the arc-shaped clamping plate 4 and the pipe body 8 disappears, and this device no longer moves synchronously with the pipe body 8.

[0044] In order to slidably connect the arc-shaped rotating plate 5 and the arc-shaped translation plate 3, this application also has an inner flange 32 fixedly connected to the inner side wall of the arc-shaped translation plate 3, and the cross-section of the inner flange 32 is in a "convex" shape or a similar structure (such as Figure 5 as shown). A guiding chute 54 is formed on the outer surface of the arc-shaped rotating plate 5, and the inner flange 32 is slidably installed in the inner cavity of the guiding chute 54 and is adapted to it. The cooperation between the guiding chute 54 and the inner flange 32 can be used to install and connect the arc-shaped translation plate 3 and the arc-shaped rotating plate 5, so that the arc-shaped rotating plate 5 can only rotate and slide along the length direction of the inner flange 32, and there will never be an axial offset between the arc-shaped rotating plate 5 and the arc-shaped translation plate 3. A second convex plate 33 is fixed to one side edge of the arc-shaped translation plate 3, a driving gear 34 is rotatably installed on the second convex plate 33, and the driving gear 34 is in meshing transmission with the tooth groove 53. A driving motor 35 is fixed to the surface of the second convex plate 33, and the output end of the driving motor 35 is fixedly connected to the driving gear 34. When the driving motor 35 works, it drives the driving gear 34 to rotate, and then drives the arc-shaped rotating plate 5 and the arc-shaped side plate 51 to rotate and move through the meshing transmission between the driving gear 34 and the tooth groove 53.

[0045] In order to control the horizontal movement of the arc-shaped translation plate 3, the mounting frame 2 of this application is integrally in a "U" shape with an upward opening, and arc-shaped fixing plates 22 are fixed to both upper ends of the mounting frame 2. The two arc-shaped fixing plates 22 are symmetrically distributed. A translation cylinder 25 is fixed to the middle of the arc-shaped fixing plate 22, and the movable end of the translation cylinder 25 is fixedly connected to the middle of the arc-shaped translation plate 3. When the translation cylinder 25 works and expands and contracts, it can drive the arc-shaped translation plate 3 and the arc-shaped fixing plate 22 to approach or move away from each other.

[0046] In order to guide the movement of the arc-shaped translation plate 3, this application also has guide sleeves 24 fixedly and throughly connected to both the upper and lower ends of the arc-shaped fixed plate 22. The inner cavity of the guide sleeve 24 is movably provided with guide connecting rods 36, and the ends of the two guide connecting rods 36 are fixedly connected to the upper and lower ends of the arc-shaped translation plate 3 respectively. The cooperation of the guide sleeves 24 and the guide connecting rods 36 can be used to guide the translation movement of the arc-shaped translation plate 3, and improve the stability of the sliding connection between the arc-shaped translation plate 3 and the arc-shaped fixed plate 22, so as to prevent the arc-shaped translation plate 3 from tilting and rotating.

[0047] To reset the sliding of the mounting bracket 2, this application further includes a rib plate 23 fixedly installed at the inner corner of the mounting bracket 2; sliding seats 21 fixedly connected to both ends of the lower part of the mounting bracket 2; and two guide rails 11 fixed to the surface of the worktable 1. The two sliding seats 21 are slidably connected to the two guide rails 11 respectively. The sliding seats 21 are inverted "T" shape. The sliding seats 21 and the guide rails 11 cooperate with each other to guide and limit the sliding of the mounting bracket 2. In addition, to improve the stability of the sliding of the mounting bracket 2, a sliding damping structure known in the prior art can be provided between the sliding seats 21 and the guide rails 11. The structure is not described in detail here. A reset member 12 is fixed on the surface of the workbench 1, and the movable end of the reset member 12 abuts against the side of the mounting frame 2. The end of the reset member 12 is attached to the mounting frame 2 but not fixed. After the reset member 12 extends and moves the mounting frame 2 to the left end of its stroke, the reset member 12 retracts and resets. Only when the arc-shaped clamp 4 clamps the pipe body 8 can the mounting frame 2 move to the right synchronously with the pipe body 8 until the cutting work is completed and the arc-shaped clamp 4 separates from the pipe body 8. At this time, the mounting frame 2 moves to the right end of its stroke, and then the reset member 12 extends and pushes the mounting frame 2 to move to the left and reset. Then the above process is repeated.

[0048] To improve the stability of the splicing of the arc-shaped rotating plates 5, this application also has positioning grooves 511 and positioning bosses 512 respectively provided on the end faces of the upper and lower ends of the arc-shaped side plates 51. The positioning grooves 511 and positioning bosses 512 on the two arc-shaped side plates 51 are respectively inserted and engaged. The end of the positioning bosses 512 is provided with a chamfer. Since the two arc-shaped rotating plates 5 of this device need to be spliced ​​and separated frequently, the positioning grooves 511 and positioning bosses 512 at both ends of the arc-shaped side plates 51 can be used to improve the stability of the two arc-shaped rotating plates 5 when splicing and avoid misalignment between them.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-frequency tube-making machine for automatic carbon tube production, characterized in that: Comprising: A workbench (1), on which an installation frame (2) is slidably installed. Two symmetrically distributed arc-shaped translation plates (3) are provided on the upper part of the installation frame (2), and a pipe body (8) is arranged between the two arc-shaped translation plates (3). The two arc-shaped translation plates (3) are spliced into a circular ring and are concentric with the pipe body (8); One side edge of the arc-shaped translation plate (3) is fixedly provided with a first convex plate (31). An arc-shaped clamping plate (4) is arranged inside the first convex plate (31), and an elastic telescopic rod (41) is fixed between the two. The two arc-shaped clamping plates (4) clamp the pipe body (8) from both sides; An arc-shaped rotating plate (5) is arranged inside the arc-shaped translation plate (3) and is in contact with it. An arc-shaped side plate (51) is fixed on one side surface of the arc-shaped rotating plate (5). A cutting blade (7) is installed on the arc-shaped side plate (51) and slides along the radial direction of the arc-shaped rotating plate (5). A tooth groove (53) is arranged on the other side surface of the arc-shaped rotating plate (5). The two arc-shaped rotating plates (5), the two arc-shaped side plates (51) and the two tooth grooves (53) are all spliced into a circular ring; The two cutting blades (7) are symmetrically distributed around the center of the pipe body (8), and the width dimension of the cutting edge of the cutting blade (7) is greater than the thickness of the pipe body (8); The inner side wall of the arc-shaped translation plate (3) is fixedly connected with an inner flange (32), and the cross section of the inner flange (32) is "convex”-shaped. A guiding chute (54) is formed on the outer surface of the arc-shaped rotating plate (5). The inner flange (32) is slidably installed in the inner cavity of the guiding chute (54) and is adapted to it. A second convex plate (33) is fixed on one side edge of the arc-shaped translation plate (3). A driving gear (34) is rotatably installed on the second convex plate (33), and the driving gear (34) is meshed with the tooth groove (53) for transmission. A driving motor (35) is fixed on the surface of the second convex plate (33), and the output end of the driving motor (35) is fixedly connected with the driving gear (34); The installation frame (2) is integrally in a "U”-shape with an upward opening, and arc-shaped fixing plates (22) are fixed at both upper ends of the installation frame (2). The two arc-shaped fixing plates (22) are symmetrically distributed. A translation cylinder (25) is fixed in the middle of the arc-shaped fixing plate (22), and the movable end of the translation cylinder ( 2. The high-frequency tube-making machine for automatic carbon tube production according to claim 1, characterized in that: ​ 3. The high-frequency tube-making machine for automatic carbon tube production according to claim 2, characterized in that: One side of the radial slider (6) is fixed with a fixed shaft (61), and the fixed shaft (61) moves through the middle of the cutting blade (7). One end of the guide seat (52) is fixed with a radial cylinder (522), and the movable end of the radial cylinder (522) is fixedly connected to the radial slider (6). A protective cover (73) is provided on the outside of the cutting blade (7), and the protective cover (73) is fixedly connected to the fixed shaft (61).

4. A high-frequency tube-making machine for automatic carbon tube production according to claim 3, characterized in that: One side of the cutting blade (7) is fixedly connected to a driven pulley (71), and the driven pulley (71) is movably sleeved on the outside of the fixed shaft (61). The outside of the driven pulley (71) is connected to a driving pulley (72) via a belt drive. The driving pulley (72) is driven to rotate by a cutting motor (74) fixed on the surface of the protective cover (73).

5. A high-frequency tube-making machine for automatic carbon tube production according to claim 4, characterized in that: The inner wall of the arc-shaped rotating plate (5), the inner wall of the arc-shaped side plate (51), and the surface of the driven pulley (71) are all left with gaps between themselves and the surface of the pipe body (8).

6. A high-frequency tube-making machine for automatic carbon tube production according to claim 5, characterized in that: The upper and lower ends of the arc-shaped fixed plate (22) are fixedly connected to guide sleeves (24). The inner cavity of the guide sleeve (24) is movably provided with guide connecting rods (36), and the ends of the two guide connecting rods (36) are fixedly connected to the upper and lower ends of the arc-shaped translation plate (3).

7. A high-frequency tube-making machine for automatic carbon tube production according to claim 6, characterized in that: Ribs (23) are fixedly provided at the inner corner of the mounting bracket (2). Sliding seats (21) are fixedly connected to both ends of the lower part of the mounting bracket (2). Two guide rails (11) are fixed on the surface of the workbench (1). The two sliding seats (21) are slidably connected to the two guide rails (11) respectively. A reset member (12) is fixed on the surface of the workbench (1), and the movable end of the reset member (12) abuts against the side of the mounting bracket (2).

8. A high-frequency tube-making machine for automatic carbon tube production according to claim 1, characterized in that: The upper and lower ends of the arc-shaped side plate (51) are respectively provided with positioning grooves (511) and positioning bosses (512). The positioning grooves (511) and positioning bosses (512) on the two arc-shaped side plates (51) are respectively inserted and engaged. The end of the positioning bosses (512) is provided with chamfers.

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