Three-chuck automatic pipe cutting machine

Abstract

The utility model provides a three-chuck automatic pipe cutting machine which comprises a cutting and feeding machine body, a laser cutter is installed in the middle of the cutting and feeding machine body, a plurality of pipe lifting devices are installed on the cutting and feeding machine body, and three-jaw chuck mechanisms are installed at the two ends of the cutting and feeding machine body through linear actuators. A material preparation frame and a discharging and feeding machine body are arranged at the two ends of the cutting and feeding machine body, and the feeding machine arm and the discharging machine arm are arranged on one side of the material preparation frame and one side of the discharging and feeding machine body. A limiting mechanism is mounted on the unloading and feeding machine body; the unloading mechanism is arranged on the unloading placing rack; according to the full-automatic pipe cutting machine, the full-automatic pipe cutting technology is innovatively integrated, through stable clamping of the three-jaw chuck, lifting and suspending operation of pipes and cooperative work of intelligent discharging and a limiting mechanism, manual dependence is thoroughly eliminated, and it is guaranteed that cutting is accurate, conveying is stable, and discharging is orderly. By means of the system, the product quality is improved, the production environment is optimized, and efficient zoning discharging is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe cutting, in particular to a three-chuck automatic pipe cutting machine. Background Art

[0002] In the field of metal pipe processing, laser cutting technology has firmly occupied the throne of mainstream cutting technology with its unparalleled high precision, excellent production efficiency and flexible operability. However, looking back at traditional laser cutting equipment, its automation level is still insufficient, especially in key links such as pipe loading, precise feeding, efficient cutting and unloading, which still require a lot of manual intervention and assistance. This dependence not only hides potential safety hazards that cannot be ignored, but also increases the risk of operational errors, thus limiting its wide application and efficient operation in a fully automated assembly line production environment.

[0003] Therefore, it is very necessary to invent a three-chuck automatic pipe cutting machine. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a three-chuck automatic pipe cutting machine, including a cutting and feeding body, a laser cutter, a pipe lifting device, a three-jaw chuck mechanism, a material preparation rack, a loading robot arm, a unloading robot arm, a unloading feeding body, a unloading placement rack, a unloading mechanism and a limiting mechanism. The laser cutter is installed in the middle of the cutting and feeding body, a plurality of pipe lifting devices are fixedly installed on the cutting and feeding body, and the three-jaw chuck mechanism is respectively installed at both ends of the cutting and feeding body through a linear actuator; the material preparation rack and the unloading feeding body are respectively provided at both ends of the cutting and feeding body, and the loading robot arm and the unloading robot arm are respectively provided on one side of the material preparation rack and the unloading feeding body; the limiting mechanism is fixedly installed on the unloading feeding body; the unloading mechanism is installed on the unloading placement rack;

[0005] The pipe lifter comprises a base, a side plate, a lifting plate, a gear, a rack, a cylinder, a connecting rod, a slider, a clamping shaft and a bottom roller, the base is fixedly mounted on the frame of the cutting and feeding body, the side plate and the servo motor are fixedly mounted on the base, the side plate is slidably connected to the lifting plate through a guide rail, the output end of the servo motor is fixed to the gear, and the gear is meshed with the rack fixedly mounted on the lifting plate; the cylinder is fixedly mounted on the lifting plate, the output end of the cylinder is hingedly connected to one end of the two connecting rods, the other end of the connecting rod is rotatably connected to the slider, the clamping shaft is rotatably mounted on the slider, the two mirror-image-arranged sliders are slidably mounted on one side of the upper end of the lifting plate, and the bottom roller is rotatably mounted on the other side of the upper end of the lifting plate; the lifting plate is located between the feeding rollers of the cutting and feeding body;

[0006] The unloading mechanism comprises a driving component, a chain gear, a bearing seat, a chain, a sliding seat frame, a bottom supporting cylinder and a supporting plate, wherein the driving component is fixedly mounted on the unloading rack, and the output end of the driving component is fixed to one of the chain gears of the chain transmission mechanism through a rotating shaft, and the two chain gears of the chain transmission mechanism are fixedly mounted on the unloading rack through the bearing seat; the chain is assembled and mounted on the two chain gears of the chain transmission mechanism, and the chain is fixedly connected to the sliding seat frame, and a plurality of the bottom supporting cylinders are fixedly mounted on the sliding seat frame, and the output end of the bottom supporting cylinder is fixed to the supporting plate;

[0007] The limiting mechanism includes a bottom plate, a transmission cylinder, a linkage plate and a vertical shaft, wherein the bottom plate is fixedly mounted on the unloading and feeding machine body, the transmission cylinder is rotatably mounted on the bottom plate, the output end of the transmission cylinder is rotatably connected to one end of the linkage plate, the linkage plate is rotatably mounted on the bottom plate, and the vertical shaft is rotatably mounted on the other end of the linkage plate;

[0008] The loading robot arm and the unloading robot arm have the same structure and are used to clamp and move steel pipes; the unloading rack and the preparation rack are arranged on each other's side, and the unloading and feeding body is placed between the unloading rack and the unloading robot arm.

[0009] Preferably, the base is a rectangular structure, the base is fixedly mounted on the crossbeam of the cutting and feeding machine body, the side panel fixedly mounted on the base is an arched structure, the gear is provided on the outer side of the side panel, and the servo motor drives the gear to rotate to control the lifting and lowering of the lifting plate.

[0010] Preferably, the output end of the cylinder and the two connecting rods are installed together in a "Y"-shaped structure, the slider is arranged above the cylinder, and the clamping shaft rotatably installed on the slider contacts one side of the outer surface of the pipe; the bottom roller contacts the lower part of the outer surface of the pipe.

[0011] Preferably, the unloading mechanism is provided with a plurality of chain transmission mechanisms, which are composed of two chain gears and a single chain, and are used to drive the slide frame to perform reciprocating motion in a horizontal plane, and the chain transmission mechanism is located below the slide frame.

[0012] Preferably, the base plate is a rectangular structure, and the base plate is located below the transmission cylinder, the linkage plate and the vertical axis. The transmission cylinder controls the vertical axis through the linkage plate, and the vertical axis can move in an arc trajectory.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model skillfully integrates a cutting and feeding body, an innovative pipe lifter, a precise three-jaw chuck mechanism, an efficient loading and unloading robot arm, a flexible unloading and feeding body, an intelligent unloading mechanism and a sophisticated limiting mechanism to jointly construct a fully automated pipe cutting line system, which completely subverts the traditional cutting process's reliance on manual labor.

[0015] In this system, the three-jaw chuck mechanism, with its excellent clamping ability, firmly fixes the pipe during the pipe cutting process, ensuring the stability and accuracy of the cutting process, effectively avoiding cutting errors caused by pipe shaking, and improving product quality.

[0016] The pipe lifter demonstrates its unique design charm. It not only provides solid support for the pipe during the cutting process and meets the needs of suspended operations, but also cleverly solves the noise and damage problems that may be caused by the direct fall of the pipe after cutting, laying a solid foundation for the smooth transportation of the pipe.

[0017] The coordinated work of the unloading mechanism and the limiting mechanism has pushed automation and intelligence to a new level. They work together in harmony to limit and arrange the cut pipes in an orderly manner, avoiding chaos and stacking, and ensuring the cleanliness and orderliness of the production site. At the same time, the unloading mechanism can also discharge the cut pipes in different time periods, further improving the convenience and efficiency of subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a structural schematic diagram of a feeding system of the utility model.

[0020] Figure 3 It is a structural schematic diagram of a pipe lifter of the utility model.

[0021] Figure 4 This utility model Figure 2 Schematic diagram of the local enlarged structure at A.

[0022] Figure 5 This utility model Figure 2 Schematic diagram of the local enlarged structure at point B.

[0023] In the figure:

[0024] Cutting and feeding body 1, laser cutter 2, pipe lifter 3, base 31, side plate 32, lifting plate 33, gear 34, rack 35, cylinder 36, connecting rod 37, slider 38, clamping shaft 39, bottom supporting roller 30, three-jaw chuck mechanism 4, stock preparation rack 5, loading robotic arm 6, unloading robotic arm 7, unloading and feeding body 8, unloading placement rack 9, unloading mechanism 10, driving component 101, chain gear 102, bearing block 103, chain 104, sliding seat frame 105, bottom supporting cylinder 106, supporting plate 107, limiting mechanism 11, bottom plate 111, driving cylinder 112, linkage plate 113, vertical shaft 114. Detailed implementation manners

[0025] In order to enable those skilled in the art of the present technology to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0026] In the description of the embodiments, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] As shown in the attached Figure 1 to the attached Figure 5 figures:

[0028] The three-chuck automatic pipe cutting machine provided by the utility model comprises a cutting and feeding body 1, a laser cutter 2, a pipe lifting device 3, a three-jaw chuck mechanism 4, a material preparation rack 5, a loading robot arm 6, a unloading robot arm 7, a unloading feeding body 8, a unloading placement rack 9, a unloading mechanism 10 and a limiting mechanism 11, wherein the laser cutter 2 is installed in the middle of the cutting and feeding body 1, a plurality of pipe lifting devices 3 are fixedly installed on the cutting and feeding body 1, and the three-jaw chuck mechanism 4 is respectively installed at both ends of the cutting and feeding body 1 through linear actuators; the material preparation rack 5 and the unloading feeding body 8 are respectively installed at both ends of the cutting and feeding body 1, and the loading robot arm 6 and the unloading robot arm 7 are respectively installed on one side of the material preparation rack 5 and the unloading feeding body 8; the limiting mechanism 11 is fixedly installed on the unloading feeding body 8; and the unloading mechanism 10 is installed on the unloading placement rack 9.

[0029] The pipe lifter 3 includes a base 31, a side plate 32, a lifting plate 33, a gear 34, a rack 35, a cylinder 36, a connecting rod 37, a slider 38, a clamping shaft 39 and a bottom roller 30. The base 31 is fixedly mounted on the frame of the cutting and feeding body 1, and the side plate 32 and the servo motor are fixedly mounted on the base 31. The side plate 32 is slidably connected to the lifting plate 33 through a guide rail, and the output end of the servo motor is fixed to the gear 34. The gear 34 is fixed to the lifting plate 33. The cylinder 36 is fixedly mounted on the lifting plate 33, the output end of the cylinder 36 is hingedly connected to one end of the two connecting rods 37, the other end of the connecting rod 37 is rotatably connected to the slider 38, the clamping shaft 39 is rotatably mounted on the slider 38, the two mirror-image sliders 38 are slidably mounted on one side of the upper end of the lifting plate 33, and the bottom roller 30 is rotatably mounted on the other side of the upper end of the lifting plate 33; the lifting plate 33 is located between the feeding rollers of the cutting and feeding body 1. The pipe lifter 3 can only provide solid support for the pipe during the cutting process, meet the needs of suspended operation, and cleverly solve the noise and damage problems that may be caused by the direct fall of the pipe after cutting, laying a solid foundation for the smooth transportation of the pipe.

[0030] The unloading mechanism 10 includes a driving component 101, a chain gear 102, a bearing seat 103, a chain 104, a slide frame 105, a bottom supporting cylinder 106 and a support plate 107. The driving component 101 is fixedly mounted on the unloading rack 9. The output end of the driving component 101 is fixed to one of the chain gears 102 of the chain transmission mechanism through a rotating shaft. The two chain gears 102 of the chain transmission mechanism are fixedly mounted on the unloading rack 9 through the bearing seat 103. The two chain gears 102 of the chain transmission mechanism are assembled with the chain 104, and the chain 104 is fixedly connected to the slide frame 105. A plurality of bottom supporting cylinders 106 are fixedly mounted on the slide frame 105, and the output end of the bottom supporting cylinder 106 is fixed to the support plate 107. The unloading mechanism 10 can discharge the pipes cut in different time periods in different zones, further improving the convenience and efficiency of subsequent processing.

[0031] The limiting mechanism 11 includes a bottom plate 111, a transmission cylinder 112, a linkage plate 113 and a vertical shaft 114. The bottom plate 111 is fixedly mounted on the unloading and feeding body 8. The transmission cylinder 112 is rotatably mounted on the bottom plate 111. The output end of the transmission cylinder 112 is rotatably connected to one end of the linkage plate 113. The linkage plate 113 is rotatably mounted on the bottom plate 111. The vertical shaft 114 is rotatably mounted on the other end of the linkage plate 113. The limiting mechanism 11 is used to limit the cut pipes on the unloading and feeding body 8, and provide a positioning and clamping basis for the unloading robot arm 7 to clamp.

[0032] The loading robot arm 6 and the unloading robot arm 7 have the same structure and are used to clamp and move steel pipes; the unloading rack 9 and the preparation rack 5 are arranged on each other's side, and the unloading and feeding body 8 is placed between the unloading rack 9 and the unloading robot arm 7.

[0033] The base of the three-jaw chuck mechanism 4 is an arched structure, and the base allows the pipe to pass through, so that the pipe can be smoothly transferred from the cutting and feeding body 1 to the unloading and feeding body 8.

[0034] The unloading robot arm 7, the unloading and feeding body 8, the unloading placement rack 9, the unloading mechanism 10 and the limiting mechanism 11 constitute the unloading system, which is used for unloading and placing the cut pipes.

[0035] Embodiment 1:

[0036] Specifically, the rectangular structure of the base 31 ensures that it can be firmly mounted on the crossbeam of the cutting and feeding machine body 1. The side plate 32 fixedly mounted on the base 31 is an arched structure, which not only enhances the stability of the overall structure, but also provides a support platform for the subsequent lifting mechanism. A gear 34 is configured on the outer side of the side plate 32, so that the servo motor can control the lifting action of the lifting plate 33 by driving the rotation of the gear 34, thereby realizing precise adjustment of the processing height of the pipe.

[0037] Specifically, the output end of the cylinder 36 is cleverly combined with the two connecting rods 37 to form a "Y"-shaped structure, which not only enhances the stability of the structure, but also enables the thrust of the cylinder 36 to be evenly distributed. The slider 38 is arranged above the cylinder 36, and the clamping shaft 39 rotatably mounted thereon can accurately contact one side of the outer surface of the pipe to achieve a stable clamping of the pipe. At the same time, the bottom roller 30 is located below the pipe and is in close contact with the outer surface of the pipe, providing necessary support for the pipe and ensuring stability during the cutting process.

[0038] Specifically, the unloading mechanism 10 is equipped with a plurality of chain transmission mechanisms, each of which is composed of two chain gears 102 and a chain 104. These chain transmission mechanisms are located below the slide frame 105, and the slide frame 105 is driven to reciprocate on the horizontal plane through the circular motion of the chain. This not only simplifies the unloading process, but also greatly improves the unloading efficiency, so that the cut pipes can be quickly and orderly transported to the designated location.

[0039] Specifically, the bottom plate 111 adopts a rectangular structure to ensure stability. On the bottom plate 111, the transmission cylinder 112 is connected to the vertical shaft 114 through the linkage plate 113. When the transmission cylinder 112 is working, it can control the vertical shaft 114 to move in an arc track through the linkage plate 113. The vertical shaft 114 can flexibly adjust its position to meet the unloading requirements of pipes of different sizes and shapes, further improving the flexibility and adaptability of the entire unloading mechanism.

[0040] Embodiment 2:

[0041] First, a whole package of standardized steel products (pipe width up to 550mm, height up to 600mm, and maximum weight of each package not exceeding 5 tons) is stably hoisted onto the preparation rack 5 using an efficient hoist. Then, the operator quickly cuts the fixing tie, allowing the product to naturally lean to one side for subsequent processing. At this time, the loading robot arm 6 intervenes accurately, lightly picks up a product, and accurately inserts it into the three-jaw chuck mechanism 4 at the near end of the arm. With the rapid start of the three-jaw chuck mechanism 4, the head end of the product is firmly clamped and fixed, and the loading robot arm 6 elegantly releases the product and automatically resets to the standby state.

[0042] Then, driven by a precise linear actuator, the clamped product slowly approaches the laser cutter 2 until it seamlessly passes through its cutting area. During this process, the other end of the product is also firmly caught and fixed by the three-jaw chuck mechanism 4 on the other side, ensuring stability and safety during the entire cutting process.

[0043] Then, the pipe lifter 3 is started, and its built-in servo motor precisely controls the rotation of the gear 34, and drives the lifting plate 33 to rise steadily through the close cooperation of the rack 35. When the bottom roller 30 lightly contacts the outer surface of the product, the system immediately stops the rising action. At this time, the cylinder 36 is activated, and through the ingenious linkage of the connecting rod 37, it drives the slider 38 to move along the axial direction of the product until the clamping shaft 39 tightly clamps the product, realizing the suspended lifting of the product, creating ideal conditions for subsequent laser cutting.

[0044] The laser cutter 2 is then started to perform high-precision and high-efficiency laser cutting on the suspended product. After the cutting operation is completed, the three-claw chuck mechanism 4 on one side releases the product in a timely manner, and at the same time, the servo motor of the pipe lifter 3 reverses, driving the lifting plate 33 to slowly descend, driving the product to smoothly fall onto the feeding roller of the cutting and feeding body 1. The feeding roller is then started to smoothly transport the cut product to the unloading and feeding body 8.

[0045] During the unloading stage, the transmission cylinder 112 of the limiting mechanism 11 accurately controls the vertical axis 114 to move in an arc trajectory through the linkage plate 113, effectively guiding and limiting the conveying path of the product, ensuring the smoothness and safety of the unloading process. At the same time, the bottom supporting cylinder 106 drives the support plate 107 to rise, preparing for the clamping operation of the unloading robot arm 7. The unloading robot arm 7 quickly and accurately clamps the product and places it steadily on the support plate 107 of the unloading mechanism 10.

[0046] Then, the driving component 101 starts, and drives the slide frame 105 to move smoothly through the chain transmission mechanism, gradually moving the pallet loaded with the product away from the unloading and feeding machine body 8, until it reaches the preset designated position and stops. At this time, the bottom supporting cylinder 106 moves again, driving the pallet 107 to slowly descend, so that the product is in close contact with the unloading placement rack 9. Finally, the driving component 101 reverses and resets the slide frame 105 to the initial state, ready for the next round of unloading operation.

[0047] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. Three-chuck automatic pipe cutting machine, characterized by: The invention comprises a cutting and feeding machine body (1), a laser cutter (2), a pipe lifting device (3), a three-jaw chuck mechanism (4), a material preparation rack (5), a loading robot arm (6), a unloading robot arm (7), a unloading and feeding machine body (8), an unloading placement rack (9), a unloading mechanism (10) and a limiting mechanism (11), wherein the laser cutter (2) is installed in the middle of the cutting and feeding machine body (1), a plurality of pipe lifting devices (3) are fixedly installed on the cutting and feeding machine body (1), and the cutting and feeding machine body (1) is provided with a plurality of pipe lifting devices (3) and a plurality of pipe lifting devices (3) are fixedly installed on the cutting and feeding machine body (1). The three-jaw chuck mechanism (4) is respectively installed at both ends of the machine body (1) through a linear actuator; the material preparation rack (5) and the material unloading and feeding machine body (8) are respectively provided at both ends of the cutting and feeding machine body (1); the material loading machine arm (6) and the material unloading machine arm (7) are respectively provided on one side of the material preparation rack (5) and the material unloading and feeding machine body (8); the limiting mechanism (11) is fixedly installed on the material unloading and feeding machine body (8); the material unloading placement rack (9) is provided with the material unloading mechanism (10); The pipe lifting device (3) comprises a base (31), a side plate (32), a lifting plate (33), a gear (34), a rack (35), a cylinder (36), a connecting rod (37), a slider (38), a clamping shaft (39) and a bottom roller (30). The base (31) is fixedly mounted on a frame of the cutting and feeding machine body (1). The side plate (32) and a servo motor are fixedly mounted on the base (31). The side plate (32) is slidably connected to the lifting plate (33) via a guide rail. The output end of the servo motor is fixed to the gear (34). The gear (34) is fixed to the lifting plate (33). The cylinder (36) is fixedly mounted on the lifting plate (33), the output end of the cylinder (36) is hingedly connected to one end of the two connecting rods (37), the other end of the connecting rod (37) is rotatably connected to the slider (38), the clamping shaft (39) is rotatably mounted on the slider (38), the two mirror-image-arranged sliders (38) are slidably mounted on one side of the upper end of the lifting plate (33), and the bottom supporting roller (30) is rotatably mounted on the other side of the upper end of the lifting plate (33); the lifting plate (33) is located between the feeding rollers of the cutting and feeding machine body (1); The unloading mechanism (10) comprises a driving component (101), a chain gear (102), a bearing seat (103), a chain (104), a slide frame (105), a bottom supporting cylinder (106) and a supporting plate (107); the driving component (101) is fixedly mounted on the unloading placement frame (9); the output end of the driving component (101) is fixed to one of the chain gears (102) of the chain transmission mechanism through a rotating shaft; the two chain transmission mechanisms are The chain gear (102) is fixedly mounted on the material unloading rack (9) via the bearing seat (103); the chain (104) is assembled and mounted on the two chain gears (102) of the chain transmission mechanism, the chain (104) is fixedly connected to the slide frame (105), a plurality of bottom supporting cylinders (106) are fixedly mounted on the slide frame (105), and the output end of the bottom supporting cylinder (106) is fixed to the support plate (107); The limiting mechanism (11) comprises a bottom plate (111), a transmission cylinder (112), a linkage plate (113) and a vertical shaft (114); the bottom plate (111) is fixedly mounted on the unloading and feeding machine body (8); the transmission cylinder (112) is rotatably mounted on the bottom plate (111); the output end of the transmission cylinder (112) is rotatably connected to one end of the linkage plate (113); the linkage plate (113) is rotatably mounted on the bottom plate (111); and the vertical shaft (114) is rotatably mounted on the other end of the linkage plate (113); The loading robot arm (6) and the unloading robot arm (7) have the same structure and are used to clamp and move steel pipes; the unloading placement rack (9) and the material preparation rack (5) are arranged on each other's side, and the unloading and feeding body (8) is placed between the unloading placement rack (9) and the unloading robot arm (7).

2. The three-chuck automatic pipe cutting machine according to claim 1, characterized in that: The base (31) is a rectangular structure. The base (31) is fixedly mounted on the crossbeam of the cutting and feeding machine body (1). The side plate (32) fixedly mounted on the base (31) is an arched structure. The gear (34) is arranged on the outer side of the side plate (32). The servo motor drives the gear (34) to rotate and control the lifting and lowering of the lifting plate (33).

3. The three-chuck automatic pipe cutting machine according to claim 1, characterized in that: The output end of the cylinder (36) and the two connecting rods (37) are installed together to form a "Y"-shaped structure. The slider (38) is arranged above the cylinder (36). The clamping shaft (39) rotatably installed on the slider (38) contacts one side of the outer surface of the pipe; and the bottom roller (30) contacts the lower side of the outer surface of the pipe.

4. The three-chuck automatic pipe cutting machine according to claim 1, characterized in that: The unloading mechanism (10) is provided with a plurality of chain transmission mechanisms, the chain transmission mechanisms being composed of two chain gears (102) and a single chain (104), the chain transmission mechanisms being used to drive the slide frame (105) to perform reciprocating motion in a horizontal plane, and the chain transmission mechanisms being located below the slide frame (105).

5. The three-chuck automatic pipe cutting machine according to claim 1, characterized in that: The bottom plate (111) is a rectangular structure. The bottom plate (111) is located below the transmission cylinder (112), the linkage plate (113) and the vertical shaft (114). The transmission cylinder (112) controls the vertical shaft (114) through the linkage plate (113), and the vertical shaft (114) can move in an arc track.

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